Zwężenie tętnicy nerkowej
Objawy

Zwężenie tętnicy nerkowej (ZTN) jest często bezobjawowe we wczesnym stadium, co utrudnia jego wczesne rozpoznanie. Charakterystycznym objawem jest nagłe lub oporne nadciśnienie tętnicze, szczególnie u osób przed 30. lub po 50. roku życia, z brakiem rodzinnego obciążenia i opornością na standardowe leczenie. Patofizjologia ZTN opiera się na aktywacji układu renina-angiotensyna-aldosteron w odpowiedzi na zmniejszony przepływ krwi przez zwężoną tętnicę nerkową, co prowadzi do zatrzymania sodu i wody oraz wzrostu ciśnienia tętniczego. W zaawansowanych stadiach obserwuje się objawy przewlekłej choroby nerek, takie jak białkomocz, podwyższone stężenie mocznika, niewydolność nerek, a także objawy przewodnienia, w tym obrzęki i duszność, zwłaszcza w przypadku obustronnego zwężenia tętnic nerkowych (zespół Pickeringa). Diagnostycznie pomocne są szmery naczyniowe nad nerkami, asymetria wielkości nerek oraz cechy miażdżycy w innych łożyskach naczyniowych.

Objawy zwężenia tętnicy nerkowej

Zwężenie tętnicy nerkowej (ZTN) często nie powoduje charakterystycznych objawów we wczesnym stadium, a oznaki choroby mogą być subtelne lub nieobecne aż do zaawansowanego etapu schorzenia. Z tego powodu ZTN bywa określane jako „cichy wróg”, ponieważ pacjenci mogą nie doświadczać żadnych symptomów, dopóki choroba nie osiągnie znacznego zaawansowania.123

W wielu przypadkach stan ten zostaje wykryty przypadkowo podczas badań wykonywanych z innych powodów, zwłaszcza u osób z nadciśnieniem tętniczym. Diagnoza może również wynikać z analizy wyników badań krwi wskazujących na zaburzenia funkcji nerek.45

Nadciśnienie tętnicze jako główny objaw

Jednym z pierwszych i najczęstszych objawów zwężenia tętnicy nerkowej jest rozwój nadciśnienia tętniczego (tzw. nadciśnienia naczyniowo-nerkowego) lub nagłe pogorszenie kontroli już istniejącego nadciśnienia. Nadciśnienie tętnicze w przebiegu ZTN ma pewne charakterystyczne cechy:67

  • Nagłe wystąpienie nadciśnienia, zwłaszcza przed 30. rokiem życia (sugerujące dysplazję włóknisto-mięśniową) lub po 50. roku życia (sugerujące zwężenie na tle miażdżycowym)89
  • Oporne nadciśnienie tętnicze, trudne do kontrolowania mimo stosowania trzech lub więcej leków hipotensyjnych1011
  • Nadciśnienie tętnicze wpływające na inne narządy12
  • Brak odpowiedzi na standardowe leczenie hipotensyjne13
  • Brak obciążenia rodzinnego nadciśnieniem tętniczym10

Nerki w normalnych warunkach pomagają regulować ciśnienie krwi. Przy zmniejszonym przepływie krwi przez zwężone tętnice nerkowe, wyspecjalizowane komórki w nerkach (komórki aparatu przykłębuszkowego) błędnie zakładają, że całkowita objętość krwi jest zbyt niska i ciśnienie jest niewystarczające. W odpowiedzi nerki uwalniają reninę, hormon, który inicjuje kaskadę renina-angiotensyna-aldosteron, prowadzącą do zatrzymania soli i wody oraz skurczu naczyń, co powoduje wzrost ciśnienia tętniczego.614

Pogorszenie funkcji nerek

Z postępem zwężenia tętnicy nerkowej, funkcja nerek może ulegać pogorszeniu. Objawy związane z upośledzeniem funkcji nerek w przebiegu ZTN mogą obejmować:111

Przy zaawansowanym zwężeniu tętnicy nerkowej, pacjenci mogą doświadczać objawów przewlekłej choroby nerek, takich jak:1011

  • Zmiana częstotliwości lub objętości oddawanego moczu (zwiększenie lub zmniejszenie diurezy)17
  • Ciemniejsza skóra11
  • Suchość skóry10
  • Uporczywe swędzenie lub drętwienie18
  • Bóle głowy19
  • Zmęczenie lub senność20
  • Kurcze mięśniowe17
  • Nudności lub wymioty11
  • Niewyjaśniona utrata masy ciała17
  • Utrata apetytu19
  • Problemy z koncentracją10
  • Zaburzenia snu21

Retencja płynów i obrzęki

Zwężenie tętnicy nerkowej może prowadzić do zatrzymania płynów w organizmie, co objawia się:16

  • Obrzękami, zwłaszcza w okolicy kostek i stóp, a rzadziej rąk lub twarzy10
  • Obrzękiem w obrębie innych tkanek ciała22
  • Dusznością (spowodowaną gromadzeniem się płynu w płucach)4
  • Nagłymi atakami duszności (tzw. obrzęk płuc typu flash), szczególnie przy obustronnym zwężeniu tętnic nerkowych, znany również jako zespół Pickeringa223

Inne objawy kliniczne

Lekarze mogą wykryć również inne oznaki kliniczne sugerujące zwężenie tętnicy nerkowej:124

  • Szmer naczyniowy (szmery słyszalne przez stetoskop) nad nerkami, będący wynikiem przepływu krwi przez zwężone naczynie1
  • Asymetria nerek (jedna nerka mniejsza, druga prawidłowej wielkości) widoczna w badaniach obrazowych24
  • Oporna na leczenie niewydolność serca1
  • Cechy miażdżycy w innych łożyskach naczyniowych9

W przypadku dysplazji włóknisto-mięśniowej, która jest rzadszą przyczyną zwężenia tętnicy nerkowej, pacjenci mogą doświadczać również silnego bólu brzucha, jeśli dojdzie do tętniaka lub pęknięcia w obrębie zajętych tętnic.25

Progresja zwężenia tętnicy nerkowej

Zwężenie tętnicy nerkowej jest chorobą postępującą, która z czasem może prowadzić do poważnych powikłań. Zrozumienie naturalnej historii i progresji tej choroby jest kluczowe dla skutecznego zarządzania i leczenia.2627

Naturalny przebieg choroby

Zwężenie tętnicy nerkowej na tle miażdżycowym ma tendencję do stopniowego pogarszania się z upływem czasu. Badania wykazują, że:2829

  • Postępujące zwężenie tętnicy występuje u około 42-53% pacjentów z miażdżycowym zwężeniem tętnicy nerkowej, często w ciągu pierwszych 2 lat od rozpoznania radiograficznego28
  • Częstość progresji do całkowitej niedrożności tętnicy nerkowej w tych badaniach waha się od 9-16%; zdarza się to często u pacjentów z zaawansowanym zwężeniem28
  • Im większa początkowa okluzja, tym bardziej prawdopodobna progresja i całkowite zamknięcie tętnicy29

Progresja zwężenia tętnicy nerkowej może być przyspieszona przez warunki hemodynamiczne, takie jak wysokie ciśnienie skurczowe zwiększające naprężenie ścinające w miejscu ścian tętnic, oraz czynniki ogólnoustrojowe, w tym dysfunkcję śródbłonka, która może być związana z innymi czynnikami, takimi jak hiperglikemia i palenie tytoniu.23

Klasyfikacja zaawansowania choroby

Zwężenie tętnicy nerkowej można sklasyfikować według stopnia zaawansowania:30

  • Stopień 1: ZTN bez objawów klinicznych
  • Stopień 2: ZTN z kontrolowanym nadciśnieniem tętniczym
  • Stopień 3: ZTN z opornym nadciśnieniem tętniczym, nieprawidłową funkcją nerek lub przewodnieniem

Stopień zwężenia tętnicy nerkowej, który uzasadniałby próbę interwencji, to zwężenie większe niż 80% u pacjentów z obustronnym zwężeniem lub zwężeniem w jedynej funkcjonującej nerce, niezależnie od tego, czy mają niewydolność nerek, czy nie.31

Konsekwencje nieleczonego ZTN

Nieleczone zwężenie tętnicy nerkowej może prowadzić do szeregu poważnych powikłań:2632

Niewydolność nerek

Długotrwałe zmniejszenie przepływu krwi przez nerki może skutkować postępującą utratą funkcji nerek, prowadząc do:1733

  • Przewlekłej choroby nerek (PChN) – charakteryzującej się stopniową utratą funkcji nerek26
  • Schyłkowej niewydolności nerek – gdzie nerki całkowicie przestają funkcjonować, wymagając dializy lub przeszczepu nerki33
  • Atrofii korowej nerki – w zaawansowanych stadiach, długotrwałe niedokrwienie może prowadzić do zaniku korowego i włóknienia śródmiąższowego z postępującym zmniejszeniem funkcji nerek27

Badania pokazują, że 4-letni wskaźnik przeżycia dla osób ze zwężeniem tętnicy nerkowej wynoszącym 95% lub więcej wynosi tylko 48%. Tylko około połowa osób z niemal całkowitą niedrożnością tętnicy przeżywa cztery lata od rozpoznania.2634

Oporne nadciśnienie tętnicze

Długotrwałe i nieleczone zwężenie tętnicy nerkowej może prowadzić do trwałego nadciśnienia tętniczego, które jest trudne do kontrolowania. Im dłużej stenoza pozostaje nieleczona i im wyższe jest ciśnienie krwi, tym mniejsze prawdopodobieństwo jego obniżenia, ponieważ organizm z czasem adaptuje się do wysokiego ciśnienia krwi.35

Powikłania sercowo-naczyniowe

Zwężenie tętnicy nerkowej zwiększa ryzyko powikłań ze strony układu sercowo-naczyniowego, w tym:1727

  • Niewydolności serca – często opornej na leczenie1
  • Obrzęku płuc typu flash – szczególnie przy obustronnym zwężeniu tętnic nerkowych23
  • Choroby wieńcowej17
  • Chorób naczyń obwodowych17
  • Udaru mózgu17
  • Przerostu lewej komory serca27

Nieleczone ZTN może prowadzić do zaostrzenia uprzednio kontrolowanej niewydolności serca, zwłaszcza gdy dochodzi do zatrzymania płynów.36

Prognoza i perspektywy leczenia

Rokowanie w przypadku zwężenia tętnicy nerkowej zależy od wielu czynników, w tym od:9

  • Stopnia zaawansowania zwężenia
  • Czy zwężenie jest jednostronne czy obustronne
  • Współistniejących chorób i czynników ryzyka miażdżycy
  • Wieku pacjenta
  • Odpowiedzi na leczenie farmakologiczne lub chirurgiczne

Wczesne rozpoznanie i leczenie ZTN jest kluczowe dla zapobiegania progresji choroby i minimalizacji potencjalnych powikłań. W zależności od stopnia zwężenia i funkcji nerek, dostępne są różne opcje leczenia:3738

  • Leczenie farmakologiczne – leki obniżające ciśnienie krwi do kontroli nadciśnienia tętniczego39
  • Zabiegi endowaskularneangioplastyka balonowa lub stentowanie, szczególnie w przypadku zwężenia większego niż 60-70% średnicy tętnicy37
  • Operacje chirurgiczne – bypass tętnicy nerkowej lub endarterektomia nerkowa w wybranych przypadkach40

Dla pacjentów z łagodniejszym stopniem zwężenia (mniejszym niż 75% redukcja światła tętnicy nerkowej), angioplastyka zwykle nie przynosi korzyści. Tacy pacjenci wymagają monitorowania przy użyciu sekwencyjnych badań obrazowych w celu wykrycia dalszego zwężenia (progresji) do punktu, w którym stenoza kwalifikuje się do leczenia.41

W przypadkach niewydolności nerek spowodowanej obustronnym zwężeniem tętnic nerkowych, zabiegi angioplastyki obu tętnic nerkowych mogą poprawić lub ustabilizować funkcję nerek. Podobnie u pacjentów z nadciśnieniem tętniczym i jednostronnym zwężeniem tętnicy nerkowej, zabiegi angioplastyki zajętej tętnicy nerkowej mogą wyleczyć lub poprawić wysokie ciśnienie krwi.41

Wczesna interwencja pozwala na skuteczniejsze zarządzanie chorobą, pomagając zmniejszyć ryzyko przewlekłej choroby nerek lub niewydolności nerek, a także innych powikłań sercowo-naczyniowych.42

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  1. 09.04.2026
  2. www.leksykon.com.pl

Materiały źródłowe

  • #1 Renal artery stenosis | UM Health-Sparrow
    https://www.uofmhealthsparrow.org/departments-conditions/conditions/renal-artery-stenosis
    Renal artery stenosis often doesn’t cause any signs or symptoms until it’s advanced. The condition may be discovered incidentally during testing for something else. Your health care provider may also suspect a problem if you have: […] As renal artery stenosis progresses, other signs and symptoms may include: […] High blood pressure that’s hard to control […] A whooshing sound as blood flows through a narrowed vessel (bruit), which your doctor hears through a stethoscope placed over your kidneys […] Elevated protein levels in the urine or other signs of a problem with kidney function […] Worsening kidney function during treatment for high blood pressure […] Fluid overload and swelling in your body’s tissues […] Treatment-resistant heart failure.
  • #2 Renal Artery Stenosis: Symptoms, Causes, Treatment | Brigham and Women’s Hospital
    https://www.brighamandwomens.org/heart-and-vascular-center/diseases-and-conditions/renal-artery-stenosis
    Renal artery stenosis symptoms don’t often appear early and can be difficult to distinguish, even as the condition progresses. In some cases, a patient has no symptoms. Common symptoms of renal artery stenosis include: […] Sudden onset of hypertension […] Hypertension not responsive to three or more blood pressure medications […] Increased urea (waste product excreted by the kidneys) in the blood […] Unexplained kidney failure or worsening kidney function during treatment for high blood pressure […] Sudden kidney failure upon first taking an angiotensin-converting enzyme (ACE) inhibitor medication […] Recurrence of flash pulmonary edema (FPE), a build-up of fluid in the lungs. […] If left untreated, renal artery stenosis grows progressively worse and can have a greater impact on kidney function.
  • #3 The “Silent Enemy” Called Renal Artery Stenosis: A Mini-Review
    https://www.mdpi.com/2813-2475/4/1/10
    Renal artery stenosis (RAS) is a vascular condition characterized by narrowing of one or both renal arteries, leading to reduced blood flow to the kidneys, activation of the renin–angiotensin–aldosterone system (RAAS), and subsequent renovascular hypertension. […] RAS typically remains asymptomatic until the late stage with complications of hypertension, ischemic nephropathy, or chronic kidney disease. […] Most cases of RAS are asymptomatic until they reach more advanced degrees of obstruction, at which time even more severe complications, including chronic kidney failure, may appear. […] This clinical entity poses concern for its potential, initially silent effects on renal function and blood pressure control, and it is associated with severe cardiovascular complications, among which are heart failure and left ventricular hypertrophy when not diagnosed and treated accordingly.
  • #4
    https://www.kidney.org.uk/artery-stenosis
    Narrowing of the main blood vessel running to one or both of your kidneys. […] Normally there are no symptoms. The arterial narrowing does not cause pain, and urine is passed normally. Therefore this is usually a problem detected when other tests are done – for example, routine blood tests to measure the kidney function. […] If the kidneys are starved of blood, they may stop working. This can occur if the artery blocks off suddenly, or more gradually if there is a serious narrowing. In its early stages, kidney failure does not cause symptoms, but is only detected in blood tests. […] One of the jobs the kidneys normally perform is to control the blood pressure. If they are starved of blood, this can cause high blood pressure. […] Renal artery stenosis can lead to fluid retention. This may cause ankle swelling, or sometimes cause fluid to accumulate in the lungs. If you get fluid in the lungs, this can cause a sudden attack of breathlessness.
  • #5 Renal Artery Stenosis – Health Information Library | PeaceHealth
    https://www.peacehealth.org/medical-topics/id/ack9676
    Renal artery stenosis itself doesn’t cause symptoms. But if it gets worse, it may cause high blood pressure. Or it may affect how well your kidneys work. Then you may have symptoms of kidney disease, such as shortness of breath or fluid buildup that causes swelling in your legs and feet. […] Several things may make your doctor think that you have renal artery stenosis. These include blood tests that show that your kidneys don’t work as well as they should. Or maybe you were diagnosed with high blood pressure at an early age. Or maybe medicine doesn’t lower your blood pressure.
  • #6 Renal Artery Stenosis: Symptoms & Treatment | Mass General Brigham
    https://www.massgeneralbrigham.org/en/patient-care/services-and-specialties/heart/conditions/renal-artery-stenosis
    Symptoms of renal artery stenosis are often subtle or absent early in the development of this condition. As the renal arteries continue to narrow, symptoms can appear and quickly worsen. […] An early sign of renal artery stenosis is the sudden development of high blood pressure, also called renal hypertension. The kidneys normally provide the body with a hormone called renin that helps regulate blood pressure. When the kidney is impaired, your body can have trouble controlling blood pressure. […] Other renal artery stenosis symptoms can include the following: Fluid retention and swelling in the body, Heart failure, Heightened fatigue, Shortness of breath, Weakness. […] In extreme cases, renal artery stenosis can lead to kidney failure. The kidneys clean your blood and remove toxins and waste from the body. If the kidneys fail, prompt treatment is required. […] Even before renal artery stenosis causes your kidneys to fail, kidney function can be impaired by the narrowing of the arterial passages. As renal artery function decreases, so do the kidneys.
  • #7 Early Symptoms of Renal Artery Stenosis and What They Mean
    https://ascendimagingcenter.com/blogs/symptoms-of-renal-artery-stenosis/
    Renal artery stenosis is a condition where one or both renal arteries become narrowed. These arteries supply blood to the kidneys. When they narrow, blood flow decreases, affecting kidney function. This condition is a key cause of hypertension and reduced kidney function. Thus, understanding the renal artery stenosis symptoms is crucial for early detection. […] The narrowing of the renal arteries impairs blood flow to the kidneys. As a result, the kidneys struggle to filter blood effectively. This leads to a buildup of waste and fluid in the body. Consequently, patients may experience symptoms such as high blood pressure and decreased kidney function. Recognizing the renal artery stenosis symptoms helps in timely intervention. […] Renal artery stenosis symptoms often include high blood pressure, a common indicator. As the arteries narrow, the kidneys receive less blood. This reduction impairs their ability to regulate blood pressure effectively. Consequently, individuals may experience elevated blood pressure levels.
  • #8 Renal Artery Stenosis | Stanford Health Care
    https://stanfordhealthcare.org/medical-conditions/blood-heart-circulation/renal-vascular-disease/types/renal-artery-stenosis.html
    Renal artery stenosis is a blockage of an artery to the kidneys. It may cause kidney failure and hypertension (high blood pressure). […] Sudden onset of hypertension before age 50 suggests fibromuscular dysplasia-related stenosis. Sudden onset of hypertension at or after age 50 suggests stenosis caused by atherosclerosis. Hypertension not responsive to three or more blood pressure medications. Increased urea (a waste product excreted by the kidneys) in the blood. Unexplained kidney failure. Sudden kidney failure when first taking an angiotensin-converting enzyme (ACE) inhibitor medication for blood pressure and/or heart treatment.
  • #9 Renovascular Disease: Symptoms, and Treatment | Doctor
    https://patient.info/doctor/renovascular-disease
    Renovascular disease symptoms The condition may present in a variety of ways and is usually asymptomatic. The following clinical scenarios are relatively common modes of presentation: […] Hypertension: Abrupt onset of hypertension in middle-aged or older patients. Severe hypertension. Hypertension resistant to standard medical therapy. Hypertension developing in a patient with known peripheral-vascular/cerebrovascular/cardiovascular disease. Hypertension developing in a patient with no family history of hypertension. Hypertension with hypokalaemia (due to hyperaldosteronism) with no provoking medications or other identifiable cause (may be associated with metabolic acidosis). […] Biochemical or clinical evidence of renal impairment occurring during treatment with angiotensin-converting enzyme (ACE) inhibitors or angiotensin-II receptor antagonists. De novo renal impairment developing in a hypertensive or normotensive patient with vascular disease/risk factors. Decompensation of congestive cardiac failure in a hypertensive patient (may present with recurrent episodes of acute pulmonary oedema with no obvious precipitant – so-called 'flash pulmonary oedema’). […] Prognosis The prognosis is variable depending upon the severity of lesions, whether unilateral or bilateral, comorbidities and co-existing atherosclerotic disease, age and response to medical or surgical therapy.
  • #10 Renal Artery Stenosis – NIDDK
    https://www.niddk.nih.gov/health-information/kidney-disease/renal-artery-stenosis
    In many cases, RAS has no symptoms until it becomes severe. […] The signs of RAS are usually either high blood pressure or decreased kidney function, or both, but RAS is often overlooked as a cause of high blood pressure. RAS should be considered as a cause of high blood pressure in people who are older than age 50 when they develop high blood pressure or have a marked increase in blood pressure, have no family history of high blood pressure, cannot be successfully treated with at least three or more different types of blood pressure medications. […] Symptoms of a significant decrease in kidney function include increase or decrease in urination, edema swelling, usually in the legs, feet, or ankles and less often in the hands or face, drowsiness or tiredness, generalized itching or numbness, dry skin, headaches, weight loss, appetite loss, nausea, vomiting, sleep problems, trouble concentrating, darkened skin, muscle cramps.
  • #11 Renal Artery Stenosis: Treatment, Symptoms, and More
    https://www.healthline.com/health/renal-artery-stenosis
    Renal artery stenosis (RAS) is a condition in which the arteries that supply blood to the kidneys narrow. […] Over time, RAS can lead to high blood pressure, edema, and kidney damage. […] Unfortunately, there arent any detectable symptoms specific to RAS. However, you might start having symptoms as the condition progresses. Signs and conditions related to RAS include: continued high blood pressure (hypertension) despite taking medications to help lower it, decreased kidney function, fluid retention, edema (swelling), especially in your ankles and feet, decreased or abnormal kidney function, an increase of proteins in your urine. […] Progressing kidney disease may cause the following symptoms: changes in urine output, darkened skin, edema that spreads to the face and other areas of the body, fatigue, muscle cramps, nausea or vomiting, sudden, unintentional weight loss.
  • #12 Renal Artery Stenosis: Causes, Symptoms, Diagnosis, and Treatments
    https://www.webmd.com/hypertension-high-blood-pressure/renal-artery-stenosis-symptoms-treatments
    Renal artery stenosis usually does not cause any specific symptoms. Sometimes, the first sign of renal artery stenosis is high blood pressure that is extremely hard to control, along with worsening of previously well-controlled high blood pressure, or elevated blood pressure that affects other organs in the body. […] Renal artery stenosis can worsen over time and often leads to hypertension (high blood pressure) and kidney damage. […] Over time, renal artery stenosis can lead to kidney failure.
  • #13 Renal Artery Disease Symptoms | Northwestern Medicine
    https://www.nm.org/conditions-and-care-areas/heart-and-vascular/conditions-and-treatments/renal-artery-disease/symptoms
    Renal artery disease means the arteries of your kidneys are blocked. Whether this is caused by plaque buildup or other conditions, blocked renal arteries keep your kidneys from working properly. Left untreated, renal artery disease may result in conditions such as high blood pressure (hypertension) or kidney failure. […] Symptoms of renal artery disease include: […] High blood pressure that is difficult to treat with medication, especially in childhood and in women younger than age 45.
  • #14 Renovascular hypertension Information | Mount Sinai – New York
    https://www.mountsinai.org/health-library/diseases-conditions/renovascular-hypertension
    Renovascular hypertension is high blood pressure due to narrowing of the arteries that carry blood to the kidneys. This condition is also called renal artery stenosis. […] Renal artery stenosis is a narrowing or blockage of the arteries that supply blood to the kidneys. […] When the arteries that carry blood to your kidneys become narrow, less blood flows to the kidneys. The kidneys mistakenly respond as if your blood pressure is low. As a result, they release hormones that tell the body to hold on to more salt and water. This causes your blood pressure to rise. […] People with renovascular hypertension may have a history of very high blood pressure that is hard to bring down with medicines. […] Symptoms of renovascular hypertension include: High blood pressure at a young age, High blood pressure that suddenly gets worse or is hard to control, Kidneys that are not working well (this can start suddenly), Narrowing of other arteries in the body, such as to the legs, the brain, the eyes and elsewhere, Sudden buildup of fluid in the air sacs of the lungs (pulmonary edema). […] If you have a dangerous form of high blood pressure called malignant hypertension, symptoms can include: Bad headache, Nausea or vomiting, Confusion, Changes in vision, Nosebleeds.
  • #15 Renal Artery Stenosis | Causes, Symptoms & Treatments
    https://londonmedical.co.uk/cardiology/renal-artery-stenosis/
    Renal artery stenosis is a condition where your kidney artery blood supply becomes blocked or narrowed. Left untreated, it can cause hypertension (high blood pressure) and eventually lead to kidney failure. […] Renal artery stenosis does not usually cause any noticeable symptoms until it becomes more advanced. In fact, it may only be discovered accidentally when testing for different conditions, like hypertension. […] When renal artery stenosis becomes advanced, symptoms can include: High blood pressure that is difficult to manage, Swelling in your body’s tissues, Heart failure that is resistant to treatment, High protein levels in your urine, Worsening kidney function. […] These symptoms might not be noticeable to you and may only be detected when your doctor checks your health. However, if you do notice any of these symptoms, make sure to consult a healthcare professional as soon as possible. […] If left untreated, renal artery stenosis can go on to cause many possible complications.
  • #16 Renal Artery Stenosis: Practice Essentials, Pathophysiology, Etiology
    https://emedicine.medscape.com/article/245023-overview
    Renal artery stenosis (RAS) is the major cause of renovascular hypertension and may account for 1-10% of the 50 million cases of hypertension in the United States population. […] Apart from its role in the pathogenesis of hypertension, renal artery stenosis is also increasingly recognized as an important cause of chronic kidney insufficiency and end-stage kidney disease. […] As the renal artery lumen progressively narrows, kidney blood flow decreases. Eventually, the decreased perfusion compromises kidney function and structure. […] Patients with renal artery stenosis may present with one or more of the following: abdominal bruit, azotemia, sudden worsening of hypertension or kidney function, acute kidney injury or decreased kidney function after initiation of antihypertensive therapy, especially with angiotensin-converting enzyme (ACE) inhibitors or angiotensin receptor blockers (ARBs), unexplained kidney insufficiency in elderly patients, and congestive heart failure, with poor control of hypertension and kidney insufficiency in the absence of a significant decrease in ejection fraction.
  • #17 Renal Artery Stenosis San Jose
    https://www.endovascularsurgery.com/renal-artery-stenosis.php
    Renal artery stenosis (RAS) is the narrowing of one or both of the renal arteries, the blood vessels that carry blood to the kidneys from the aorta. RAS often causes high blood pressure and reduced kidney function, but many times it has no symptoms until it becomes severe. […] In addition to hypertension (high blood pressure), people with RAS may have reduced kidney function, which can cause the following symptoms: Edema (swelling) of the hands or feet, Increase or decrease in urination, Muscle cramps, Nausea, Vomiting, Weight loss, Numbness, Darkened skin. RAS may also cause symptoms of hypertension; they include headaches, dizziness and fatigue. Hypertension caused by renal artery stenosis is commonly referred to as „renal vascular hypertension.” […] Left untreated, RAS can lead to serious conditions that include chronic kidney disease, coronary artery disease, peripheral vascular disease and stroke.
  • #18 Renal Artery Stenosis: Symptoms, Causes, Risk Factors & Treatment | Renal Stenosis
    https://resources.healthgrades.com/right-care/kidneys-and-the-urinary-system/renal-artery-stenosis
    Renal artery stenosis may not produce symptoms until it reaches a severe stage. […] When RAS becomes symptomatic, it often results in decreased kidney function, such as changes in urination or swelling of the feet and legs. […] RAS also can cause high blood pressure. […] The symptoms of renal artery stenosis can be subtle and develop over many years. […] Most of the time, the symptoms of RAS are related to decreased kidney function. […] The most common symptoms of renal artery stenosis are: Either an increase or a decrease in urination, Excessively dry skin or darkened skin, Headaches, Swelling (edema) of the feet, ankles or legs, Unexplained fatigue or sleepiness, Unexplained itching, tingling, or numbness all over the body. […] Left untreated, renal artery stenosis can cause kidney failure, leading to the need for dialysis or even a kidney transplant. […] These complications usually develop over a long period of time, which gives you the opportunity to intervene with lifestyle changes and medical treatments before stenosis becomes severe enough to require surgery or cause kidney damage.
  • #19 Renal Artery Stenosis (RAS) – Causes, Symptoms, Diagnosis, Treatment, Risk Factors
    https://www.medindia.net/health/conditions/renal-artery-stenosis.htm
    As the condition progress, symptoms include high blood pressure, resistance to blood pressure medications, decreased kidney function, congestive heart failure or shrunken kidneys. […] RAS generally leads to a decline in kidney function. Some of the symptoms of decreased kidney function include: Increase or decrease in urination, Edema swelling in the legs especially around the ankles, Fatigue, Drowsiness, Itching, Dry skin, Headaches, Nausea and vomiting, Weight loss, Appetite loss, Muscle cramps.
  • #20 Renal Artery Stenosis | Symptoms, Diagnosis, & Treatment | ECCO
    https://eccomedical.com/conditions/renal-artery-stenosis/
    When the artery to your kidney becomes narrowed or blocked, your kidney is tricked into thinking there is not enough blood volume in your body. This causes it to release hormones into the body that raise the blood pressure. Not only does this cause dangerously high blood pressure, but over time will result in kidney failure as not getting enough blood to the kidney will cause damage. […] In many cases, RAS has no symptoms until it becomes severe. Symptoms of a significant decrease in kidney function include: Increase or decrease in urination, Edema swelling, usually in the legs, feet or ankles, Drowsiness or tiredness, Dizziness, Headaches, Appetite loss, Nausea and/or vomiting, Sleep problems.
  • #21 Renal Artery Stenosis Treatment in MS | Hattiesburg Clinic
    https://www.hattiesburgclinic.com/vascular-surgery/visceral-renal-artery-stenosis/
    Renal artery stenosis is the narrowing of either or both renal arteries, which are blood vessels that carry blood to the kidneys from the aorta. […] The primary cause of renal artery stenosis is atherosclerosis narrowing, clogging and hardening of the arteries. […] An individual may experience the following symptoms if he or she has renal artery stenosis: More or less urination, Drowsiness or fatigue, Generalized itching or numbness, Edema (swelling in the legs, feet or ankles), Headaches, Sleep issues, Weight loss, Dry skin, Loss of appetite, Nausea or vomiting, Trouble focusing, Darker skin, Muscle cramps. […] Complications of this condition, as a result of decreased kidney function or narrowing arteries, include: Chronic kidney disease, Coronary artery disease, Peripheral vascular disease, Stroke, End-stage renal disease (kidney failure).
  • #22 Renal Artery Disease | Stenosis |Symptoms | MedStar Health
    https://www.medstarhealth.org/services/renal-artery-disease
    Renal artery disease may not cause any symptoms at first. As the condition gets worse, you may experience: […] High blood pressure that doesnt respond to lifestyle changes, such as diet and exercise […] Poor or abnormal kidney function […] Swelling in the bodys tissues because of fluid retention.
  • #23 The “Silent Enemy” Called Renal Artery Stenosis: A Mini-Review
    https://www.mdpi.com/2813-2475/4/1/10
    The bilateral RAS is commonly associated with flash pulmonary edema, also known as Pickering syndrome. […] The pathophysiology of recurrent pulmonary edema is complex, but in bilateral RAS patients it is highly correlated with volume overload. […] The progression of RAS entails a number of structural and functional changes in the arterial walls. […] Further progression of stenosis may be accelerated by hemodynamic conditions, such as high levels of systolic pressure that raise the shearing stress at the site of arterial walls, and systemic factors including endothelial dysfunction that in turn may be linked with other precipitating agents, such as hyperglycemia and smoking. […] The early, accurate diagnosis of RAS is very important in the proper management of the disease, especially when very severe clinical conditions manifest.
  • #24 Renal artery stenosis – edren.org
    https://edren.org/ren/edren-info/renal-artery-stenosis/
    Renal artery stenosis usually has no symptoms. However the diagnosis is considered when there are clues such as: […] Blood pressure is unusually difficult to control, or new, or severe in a young person. […] There is a kidney damage without evidence of kidney inflammation, but in the presence of diseased arteries elsewhere, especially in the legs (e.g. intermittent claudication, which often causes pain in the calves on walking). […] Signs of disease in the arteries can include a bruit (a sound with a stethoscope suggesting a narrowed artery), which may be heard over the abdomen in the case of renal artery stenosis. […] Kidneys are asymmetrical (one side shrunken, other side normal) on ultrasound or other kind of investigation.
  • #25 Fibromuscular Renal Artery Stenosis | Cedars-Sinai
    https://www.cedars-sinai.org/health-library/diseases-and-conditions/f/fibromuscular-renal-artery-stenosis.html
    Fibromuscular renal artery stenosis is a narrowing of the arteries that lead to the kidneys, also known as the renal arteries, and occurs as part of the condition known as fibromuscular dysplasia (FMD). […] The most common sign of fibromuscular renal artery stenosis is high blood pressure. The condition often goes undiagnosed, however, until imaging tests of the arteries are performed for a separate reason. […] Other symptoms may include: […] Severe abdominal pain, if an aneurysm or tear occurs in the affected arteries. […] There is no cure for fibromuscular renal artery stenosis. However, the symptoms can be managed through prescription medications and other therapies overseen by a knowledgeable medical team. […] Patients with the condition are often prescribed medication to lower their high blood pressure. In some cases, such as resistant hypertension or declining kidney function, a percutaneous balloon angioplasty may be performed to widen the narrowing artery and improve blood flow. This procedure can result in better blood pressure control and improve blood circulation to the kidneys.
  • #26 Renal Artery Stenosis: Symptoms, Causes & Treatment
    https://my.clevelandclinic.org/health/diseases/17422-renal-artery-disease
    Renal artery stenosis (RAS) occurs when the arteries that carry blood to your kidneys narrow. Its usually the result of atherosclerosis. RAS is a serious condition that can lead to chronic kidney disease or kidney failure. […] Renal artery stenosis can lead to hypertension (high blood pressure), chronic kidney disease or kidney failure. […] In many cases, RAS doesnt cause symptoms. It tends to cause problems, such as high blood pressure and reduced kidney function, only after the disease has progressed. Symptoms of poor kidney function may include: […] Between 60% and 90% of RAS cases result from atherosclerosis. […] Potential complications of RAS include: Chronic kidney disease. Kidney failure. […] Renal artery disease (RAS) is a progressive condition, worsening over time. The outlook for someone with RAS depends largely on the severity of the disease. Research shows that the four-year survival rate for people with renal artery blockage of 95% or more is only 48%. So, only about half of people with near-total artery occlusion survive for four years after diagnosis. […] RAS can lead to serious health problems, including high blood pressure, chronic kidney disease or kidney failure.
  • #27 The “Silent Enemy” Called Renal Artery Stenosis: A Mini-Review
    https://www.mdpi.com/2813-2475/4/1/10
    These insights underscore the importance of early detection and risk assessment with a view to preventing progression of disease and guiding appropriate therapeutic interventions in patients diagnosed with RAS. […] One of the main consequences of RAS is renovascular hypertension: a secondary form of hypertension that results from persistent activation of the RAAS. […] A relatively common consequence of RAS is large vessel atherosclerotic renovascular disease (ARVD). […] In the advanced stages of early-onset renal artery stenosis, prolonged ischemia can lead to renal cortical atrophy and interstitial fibrosis with a progressively reduced renal function. […] Although often asymptomatic in its early stages, RAS can progress to renovascular hypertension, chronic renal failure, and serious cardiovascular events, which confirm the importance of early diagnosis and effective management.
  • #28 Renal Artery Stenosis: Practice Essentials, Pathophysiology, Etiology
    https://emedicine.medscape.com/article/245023-overview
    The consequences of renal artery stenosis are hypertension, which may be particularly difficult to control or may require multiple antihypertensive agents, and progressive loss of kidney function (ischemic nephropathy). […] Most studies show that progressive arterial obstruction occurs in 42-53% of patients with atherosclerotic renal artery stenosis, often within the first 2 years of radiographic follow-up. The incidence rate of progression to complete renal artery occlusion in these studies ranges from 9-16%; this often occurs in patients with a high-degree stenosis.
  • #29 Renal Artery Stenosis: Symptoms, Diagnosis and Therapy
    http://www.urology-textbook.com/renal-artery-stenosis.html
    Renal artery stenosis leads to the activation of the renin-angiotensin-aldosterone system (RAAS), ischemia of the kidney, and renal arterial hypertension. […] Arterial hypertension and the following clinical risk factors suggest renal hypertension due to renal artery stenosis: hypokalemia (without diuretics), elevated creatinine concentration or cystatin C, abdominal stenotic bruit, severe hypertension with hypertensive crises, arteriosclerosis in other organs and unilateral atrophic kidney. […] Renal artery stenosis due to arteriosclerosis is a progressive disease: in 50% of cases the obstruction progresses and 16% will suffer from complete closure. The greater the obstruction at initial diagnosis, the more likely the progression and the complete closure. If renal failure requires dialysis due to renal artery stenosis, the prognosis due to vascular complications is poor: median survival of 27 months, and the five-year survival rate is 12%.
  • #30
    https://step2.medbullets.com/renal/120701/renal-artery-stenosis
    A 59-year-old man with a history of hypertension presents to his primary care physician for blood pressure management. He has tried lisinopril, hydrochlorothiazide, and losartan, and had minimal effect. He has a strong family history of cardiovascular disease. Physical examination is notable for a bruit in the right flank. Routine bloodwork shows an elevated creatinine. Preparations are made for a doppler ultrasound of the renal arteries. […] Clinical definition narrowing of one or both renal arteries this often causes renovascular hypertension grade 1 RAS (Renal artery stenosis) with no clinical symptoms grade 2 RAS with controlled hypertension grade 3 RAS with resistant hypertension, abnormal renal function, or volume overload. […] Symptoms primary symptoms hypertension. […] Physical exam extremities may have edema if volume overloaded. […] sudden unexplained volume overload (heart failure or pulmonary edema). […] Renal dysfunction can progress to end-stage renal disease incidence 4% in one study of 68 adults over 39 months.
  • #31 Renal Artery Stenosis – StatPearls – NCBI Bookshelf
    https://www.ncbi.nlm.nih.gov/books/NBK430718/
    Renal artery stenosis is narrowing of the one or both of renal arteries. It is the major cause of hypertension and according to some reports is the cause of hypertension in 1% to 10% of the 50 million people in the United States. […] Other associated complications of renal artery stenosis are chronic kidney disease and end-stage renal disease. […] Clinical manifestations that suggest the likelihood of renovascular disease as a cause of hypertension include severe hypertension that may be treatment resistant, refractory to therapy with three or more drugs. […] Patients with ischemic nephropathy may also manifest a persistent and progressive reduction in glomerular filtration rate (GFR). […] The degree of renal artery stenosis that would justify any intervention attempt is greater than 80% in patients with bilateral stenosis or stenosis in a solitary functioning kidney regardless of whether they have renal insufficiency or not.
  • #32 Renal Artery Stenosis: Treatment, Symptoms, and More
    https://www.healthline.com/health/renal-artery-stenosis
    Decreased blood flow through your renal arteries can increase your overall blood pressure, leading to hypertension. RAS can also produce edema. The swelling can worsen over time as the condition progresses. […] Over time, renal artery stenosis can also damage kidney tissues. This can lead to kidney failure in severe cases and may require a kidney transplant. […] RAS is a potentially serious condition. Left untreated, it can lead to permanent kidney damage. It’s important to see your doctor if you have any unusual symptoms or if you think an underlying condition like hypertension is getting worse.
  • #33 How to Diagnose Renal Artery Stenosis? (2024)
    https://cacvi.org/how-to-diagnose-renal-artery-stenosis/
    Untreated RAS leads to reduced blood flow to the kidneys, which impairs their ability to filter waste and regulate fluids. Over time, this can cause chronic kidney disease (CKD), characterized by a gradual loss of kidney function. […] If RAS is not addressed, CKD can evolve into a life-threatening condition known as end-stage renal disease (ESRD), where the kidneys fail completely, requiring dialysis or a kidney transplant. […] Similarly, untreated renal artery stenosis can lead to hypertension. The kidneys play a vital role in regulating blood pressure, and when they detect low blood flow, they release hormones that cause the body to retain salt and water, raising blood pressure. […] In extreme cases, untreated hypertension linked to RAS can result in flash pulmonary edema. This is a sudden and severe buildup of fluid in the lungs, which is a medical emergency.
  • #34 All You Need to Know about Renal Artery Stenosis (RAS)
    https://ckbirlahospitals.com/bmb/blog/all-you-need-to-know-about-renal-artery-stenosis
    Renal artery disease is a progressive condition and keeps deteriorating over time. The outlook of this disease for someone relies on its severity. According to research, it is found that once diagnosed with this condition around 48% of people can survive for four years. It is a serious condition causing permanent kidney damage.
  • #35 Renal Artery Stenosis Symptoms and Treatment in Turkey
    https://bi-maristan.com/en/cardiovascular/peripheral-vascular/renal-artery-stenosis/
    The cause of this stenosis can usually be corrected. […] In most cases, a normal blood pressure level can be achieved. […] However, the longer the stenosis is left untreated and the higher the blood pressure, the less likely it is to be lowered again as the body adapts to the high blood pressure over time. […] If high blood pressure persists, so-called persistent high blood pressure occurs. […] In addition, if renal artery stenosis is not treated, there is a risk of kidney shrinkage and gradual loss of function.
  • #36 Overview
    http://www.cardiosmart.org/topics/renal-artery-disease/overview
    Renal artery stenosis symptoms typically are secondary to high blood pressure, excess salt and water retention, and worsening kidney function. […] A new diagnosis of high blood pressure under the age of 30 or sudden worsening of previously well-controlled blood pressure should raise suspicion of renal artery disease. […] Over time, renal artery stenosis causes kidney function to deteriorate because of poor blood supply. […] A significant increase or decrease in urination, unintentional weight loss, loss of appetite, drowsiness, difficulty concentrating, muscle cramps, nausea and fluid retention can indicate worsening renal function. […] Excess fluid retention in the body may cause swelling in the legs or abdomen, shortness of breath or fatigue. […] Some patients may not experience any symptoms until the very advanced stages of the disease. Therefore, routine follow-up health visits are needed for early diagnosis.
  • #37 Surgery for Renal Artery Stenosis | NYU Langone Health
    https://nyulangone.org/conditions/renal-artery-stenosis/treatments/surgery-for-renal-artery-stenosis
    At NYU Langone, our specialists sometimes perform surgery to manage the symptoms of renal artery stenosis and prevent complications. Good candidates for surgery are people with severe narrowing greater than 60 to 70 percent of the artery’s diameter. People without symptoms or evidence of damage to the arteries or kidneys typically don’t require surgery. […] Angioplasty with stent placement is typically the first procedure used for people with renal artery stenosis because it’s minimally invasive and involves less recovery time than conventional surgery. Percutaneous balloon angioplasty and stenting can increase blood flow to the kidneys, lower blood pressure, and prevent complications such as kidney damage. […] Most people remain in the hospital for three to seven days after renal artery bypass surgery, with a follow-up visit one or two weeks later to remove stitches from the skin. Recovery can take two to four weeks.
  • #38 Renal Vascular Disease | University Hospitals
    https://www.uhhospitals.org/health-information/health-and-wellness-library/article/diseases-and-conditions/renal-vascular-disease
    Surgical treatment: Endovascular procedures such as angioplasty (the opening of a renal artery using a balloon or other method) or placement of a stent (a tiny, expandable metal coil placed inside an artery to keep the artery open) […] Open surgery to bypass the blocked renal artery. […] In time, renal vascular disease can lead to kidney failure. This may require dialysis or a kidney transplant.
  • #39 Renal Vascular Disease | University Hospitals
    https://www.uhhospitals.org/health-information/health-and-wellness-library/article/diseases-and-conditions/renal-vascular-disease
    Renal artery stenosis (RAS). This is a narrowing or blockage of an artery to the kidneys. It may cause kidney failure and high blood pressure. […] Symptoms of renal vascular disease vary depending on the type of disease and degree of involvement present. […] Renal artery stenosis […] High blood pressure that doesnt get better with 3 or more medicines […] Increased urea (a waste product made by the kidneys) in the blood […] Unexplained kidney failure […] Sudden kidney failure when first taking an angiotensin-converting enzyme (ACE) inhibitor to treat high blood pressure or heart conditions. […] Treatment will depend on your symptoms, age, general health, and on how severe the condition is. […] Renal artery stenosis […] Medical treatment: Blood pressure lowering medicines to treat high blood pressure
  • #40 Surgery for Renal Artery Stenosis | NYU Langone Health
    https://nyulangone.org/conditions/renal-artery-stenosis/treatments/surgery-for-renal-artery-stenosis
    In a renal endarterectomy, which is no longer commonly performed, your doctor removes plaque, the waxy substance blocking the renal artery and restricting blood flow to the kidneys. The surgery typically requires a five- to seven-day stay in the hospital. It can take three to four weeks to recover at home.
  • #41 Renal Artery Stenosis Causes, Symptoms, Treatment, Diagnosis
    https://www.medicinenet.com/renal_artery_stenosis/article.htm
    Typically, unilateral (one-sided) renal artery stenosis may be related to high blood pressure whereas bilateral (two-sided) renal artery stenosis is more often related to diminished kidney function. […] In patients with renal failure due to bilateral renal artery stenosis (narrowing on both kidneys), angioplasty procedures for both renal arteries may improve or stabilize kidney function. Similarly, in hypertensive patients with unilateral (one-sided) renal artery stenosis, angioplasty procedures of the involved renal artery may cure or improve the high blood pressure. […] Patients with milder degrees of stenosis (less than a 75% reduction in the width of the renal artery lumen) usually do not benefit from angioplasty. These patients need to be followed by sequential imaging procedures to detect further narrowing (progression) to the point of treatable stenosis.
  • #42 Early Symptoms of Renal Artery Stenosis and What They Mean
    https://ascendimagingcenter.com/blogs/symptoms-of-renal-artery-stenosis/
    If left untreated, renal artery stenosis can lead to severe complications, such as chronic kidney disease or kidney failure. Consequently, identifying and treating the condition early reduces the risk of these serious outcomes and enhances the chances of successful management. […] In conclusion, early recognition of renal artery stenosis symptoms is vital for preventing severe complications and protecting kidney health. By identifying symptoms such as high blood pressure, decreased kidney function, and changes in urination, patients and healthcare providers can initiate timely diagnostic tests and treatments. Early intervention allows for more effective management of the condition, helping to reduce the risk of chronic kidney disease or kidney failure.