Materiały źródłowe

• #1 Patau Syndrome – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK538347/

  Patau syndrome is diagnosed either prenatally or at birth. […] Diagnosis of Patau syndrome can be made prenatally with chorionic villi sampling, amniocentesis, or fetal free DNA analysis. […] Prenatal ultrasound can also help detect the malformations of Patau syndrome, such as holoprosencephaly or other central nervous system anomalies, facial anomalies, skeletal abnormalities, renal or cardiac defects, and growth restriction that are typically present. […] Abnormal findings should have confirmation performed with a cytogenetic evaluation of fetal cells. […] Cytogenetic evaluation with chorionic villi sampling, amniocentesis, fetal free DNA analysis, or tissue microarray would distinguish trisomy 13 from these other cytogenetic abnormalities.

• #2 Patau Syndrome Workup: Laboratory Studies, Imaging Studies

  https://emedicine.medscape.com/article/947706-workup

  Immediately obtain conventional cytogenetics for any child or neonate with suspected Patau syndrome, unless cytogenetic diagnosis has been made prenatally. […] Antecedents to the prenatal diagnosis of Patau syndrome include abnormal first or second trimester aneuploidy screening and abnormal prenatal ultrasonography findings, including birth defects or growth restriction. […] Newer techniques of noninvasive prenatal testing using cfDNA from maternal blood sample are very promising for having high sensitivity and specificity to detect aneuploidy prenatally. […] In addition to conventional cytogenetics, fluorescent in-situ hybridization (FISH) on interphase cells could be used to obtain a more rapid prenatal diagnosis. Cytogenetic analysis is a necessary step in the prenatal diagnosis of Patau syndrome.

• #3 Patau’s syndrome

  https://www.nhs.uk/conditions/pataus-syndrome/

  You’ll be offered a screening test for Patau’s syndrome, as well as Down’s syndrome (trisomy 21) and Edwards’ syndrome (trisomy 18), from 10 to 14 weeks of pregnancy. […] A diagnostic test will check the chromosomes in a sample of cells taken from your baby and helps to find out for certain if they have Patau’s syndrome. […] Two techniques can be used to obtain the cell sample: amniocentesis or chorionic villus sampling (CVS). […] If your baby is diagnosed with Patau’s syndrome, either before birth or shortly afterwards, you’ll be offered counselling and support.

• #4 Screening for Down’s syndrome, Edwards’ syndrome and Patau’s syndrome – NHS

  https://www.nhs.uk/pregnancy/your-pregnancy-care/screening-for-downs-edwards-pataus-syndrome/

  You will be offered a screening test for Down’s syndrome, Edwards’ syndrome and Patau’s syndrome between 10 and 14 weeks of pregnancy. This is to assess your chances of having a baby with one of these conditions. […] If a screening test shows that you have a higher chance of having a baby with Down’s syndrome, Edwards’ syndrome or Patau’s syndrome, you’ll be offered further tests to find out for certain if your baby has the condition. […] For Edwards’ syndrome and Patau’s syndrome, if you are too far into your pregnancy to have the combined test, you’ll be offered a 20-week screening scan. This looks for physical conditions, including Edwards’ syndrome and Patau’s syndrome. […] It cannot tell you for certain whether the baby does or does not have Down’s syndrome, Edward’s syndrome or Patau’s syndrome, but it can provide information that may lead to further important decisions.

• #5 Patau’s syndrome | NHS inform

  https://www.nhsinform.scot/illnesses-and-conditions/chromosomal-conditions/pataus-syndrome/

  Youll be offered screening for Pataus syndrome when youre between 11 and 14 weeks pregnant. […] The screening test will show if your baby has a high or low chance of having Pataus syndrome. […] If screening shows that theres a high chance your baby has Pataus syndrome, you can choose to have a further diagnostic test if you wish. […] No test can tell if your baby has full, mosaic or partial Pataus syndrome, or how theyll be affected.

• #6 Down’s syndrome, Edwards’ syndrome and Patau’s syndrome testing: what you need to know in pregnancy | NCT

  https://www.nct.org.uk/information/pregnancy/body-pregnancy/downs-syndrome-edwards-syndrome-and-pataus-syndrome-testing-what-you-need-know-pregnancy

  All pregnant women in England are offered a screening test called the combined test between 10 and 14 weeks of pregnancy. This test combines an ultrasound scan with a blood test for Down’s syndrome, Edwards’ syndrome and Patau’s syndrome. Itll tell you how high your chances are of having a baby with one of those conditions. […] If you have a higher-chance result, you will be offered a diagnostic test, such as amniocentesis or chorionic villus sampling (CVS). This will tell you for certain whether or not the baby has Down’s syndrome, Edwards’ or Patau’s syndrome. […] A diagnostic test like amniocentesis or chorionic villus sampling (CVS) will tell you for certain whether your baby has Down’s, Edwards or Patau’s syndrome. […] Amniocentesis involves removing and testing cells from the fluid that surrounds your unborn baby in the womb with a long, thin needle. […] With chorionic villus sampling, a small sample of cells is removed from the placenta. This is either by a needle inserted through your tummy or a tube or small forceps that go through the cervix.

• #7 Typical Morphological Features on Prenatal Ultrasound of Fetuses With Trisomy 13 (Patau’s Syndrome) | Tran | Journal of Clinical Gynecology and Obstetrics

  https://jcgo.org/index.php/jcgo/article/view/848/525

  Increased NT and major structural abnormalities are suggestive signs for early screening of trisomy 13 by ultrasound. The combination of fetal ultrasound with other prenatal screening methods provides good results for the early detection of fetal abnormalities. […] Ultrasound is one of the simple and effective prenatal screening tools helping detect fetuses at high risk for trisomy 13. Ultrasound has been reported to detect more than 90% of fetuses with trisomy 13. Many typical morphological abnormalities representing fetuses with trisomy 13 were detected on ultrasound. Common abnormalities on ultrasound in trisomy 13 include: holoprosencephaly, ventriculomegaly, microcephaly, cyclopia, nasal proboscis, heart defects, cleft lip, cleft palate, limbs abnormalities, umbilical hernia, genitourinary malformations, increased nuchal translucency (NT), and others.

• #8 Typical Morphological Features on Prenatal Ultrasound of Fetuses With Trisomy 13 (Patau’s Syndrome) | Tran | Journal of Clinical Gynecology and Obstetrics

  https://jcgo.org/index.php/jcgo/article/view/848/525

  The P-value for the increased NT in the trisomy 13 group compared to the normal group is 0.0001, which indicates a statistically significant difference between the two groups. Specifically, 78.26% of fetuses with trisomy 13 had an NT measurement 3 mm, while only 3.25% of normal fetuses had an NT measurement 3 mm. This suggests that increased NT measurement in the first trimester may be indicative of trisomy 13. However, it is important to note that increased NT measurement can also be associated with other chromosomal abnormalities, as well as non-genetic factors such as maternal age, obesity, and infections. Therefore, further testing and evaluation would be necessary to confirm a diagnosis of trisomy 13. […] In obstetric practice, the sign of increased NT and major structural abnormalities detected on fetal ultrasound is used to screen for trisomy 13. According to the American College of Obstetricians and Gynecologists, an increased NT (usually defined as 3.0 mm or above the 99th percentile for crown-rump length) between 11 weeks and 13 weeks and 6 days of gestation is associated with an increased risk for aneuploidy. In our study, there were 23 fetuses that were examined by ultrasound in the first trimester, 18 of them had increased NT (78.26%), and five of them had NT 3.0 mm (21.74%). The Chi-squared test gives 2 of 7.348 with P value of 0.007 (0.01). Thus, the rate of fetuses with trisomy 13 in the two groups of NT 3 mm and NT 3 mm was a statistically significant difference with a 99% confidence level. The rate of increased NT in fetuses without aneuploidy was very low (3.25%). It can be seen that increased NT is an important ultrasound sign in the first trimester suggesting an aneuploidy in the fetus.

• #9 Patau Syndrome Workup: Laboratory Studies, Imaging Studies

  https://emedicine.medscape.com/article/947706-workup

  Caveats concerning the limitations of aneuploidy screening in cases of Patau syndrome are warranted. […] A significant number of cases can be detected through the use of first trimester screening (ie, ultrasonography measurement of the nuchal translucency, pregnancy associated plasma protein A [PAPPA], and some form of hCG [usually the free circulating form]). […] Birth defects identified in fetuses with trisomy 13 include but are not limited to abnormalities of the CNS, cardiac defects, facial defects, growth restriction, holoprosencephaly, and renal abnormalities. […] Mosaicism for trisomy 13 is associated with a milder degree of severity, with the mildest expression typically in the lowest levels of mosaicism. […] Initiate appropriate imaging studies when holoprosencephaly or cardiac or renal anomalies are clinically suspected. […] Because of the high frequency of structural defects, perform cardiac evaluations on patients with Patau syndrome who survive the neonatal period.

• #10 Patau syndrome | Radiology Reference Article | Radiopaedia.org

  https://radiopaedia.org/articles/patau-syndrome?lang=us

  Patau syndrome (also known as trisomy 13) is considered the 3rd commonest autosomal trisomy. […] The estimated incidence is approximately 1:6000. There may be an increased incidence with advanced maternal age. […] Three forms are known: free trisomy 13: classical form, translocation trisomy 13, mosaic trisomy 13. […] Markers include reduced maternal serum alpha fetoprotein (MSAFP), reduced maternal beta HCG, and reduced PAPP-A. […] Many of the individual clinical features listed above may be seen on ultrasound. Other general features include: abnormal liquor volumes: either polyhydramnios (more common) or oligohydramnios, evidence of intrauterine growth restriction (IUGR): especially early, increased nuchal thickness, evidence of hydrops fetalis, echogenic bowel, echogenic chordae tendineae. […] The syndrome carries a poor prognosis, with most cases ending in fetal demise or neonatal death. Management is mainly supportive. […] Individuals with Meckel-Gruber syndrome may exhibit some clinical features similar to that of trisomy 13.

• #11 Trisomy 13: Diagnosis, Causes, Prognosis, and More

  https://www.healthline.com/health/childrens-health/trisomy-13

  Trisomy 13 can be diagnosed while you are pregnant or after your baby is born. […] A cell-free DNA screening is a noninvasive blood test that can be done as early as 10 weeks into pregnancy. If your screen shows a positive result, it means that your child may have trisomy 13, but that more concrete testing is needed. […] An ultrasound scan may reveal certain features that match up with Patau syndrome, like extra fingers or toes, small head size, or eye abnormalities. […] Amniocentesis is a diagnostic test that can be done after week 15 of pregnancy. Your doctor will obtain a sample of amniotic fluid to look for additional chromosomes. […] Chorionic villus sampling is a test that can be done earlier than amniocentesis, at 10 to 13 weeks. Your doctor will obtain a sample of placental tissue to look for additional chromosomes. […] After birth, your child’s doctor may make a diagnosis based on a physical exam, certain characteristics, and blood tests to analyze chromosomes.

• #12 Screening for Down’s syndrome, Edwards’ syndrome and Patau’s syndrome | NHS inform

  https://www.nhsinform.scot/healthy-living/screening/pregnancy/screening-for-down-s-syndrome-edwards-syndrome-and-patau-s-syndrome/

  If you receive a very high chance result (between 1 in 2 and 1 in 10 for Edwards syndrome or Pataus syndrome, this may affect your options for further screening. […] If you get a higher-chance result, it doesnt mean your baby definitely has Pataus syndrome, but its more likely. […] Further testing can give you more accurate information about how likely it is your baby may have either Pataus syndrome.

• #13 Screening for Down’s syndrome, Edwards’ syndrome and Patau’s syndrome – Overview | Guy’s and St Thomas’ NHS Foundation Trust

  https://www.guysandstthomas.nhs.uk/health-information/screening-tests-in-pregnancy

  When you arrive at the fetal medicine unit for your scan, we will offer you a blood test that screens for Down’s syndrome, Edwards’ syndrome and Patau’s syndrome. […] Combined screening cannot say for certain whether your baby has one of these conditions. It tells you if your baby has a lower or higher chance of having Down’s syndrome, Edwards’ syndrome or Patau’s syndrome. […] The screening test will give you a higher-chance result or a lower-chance result of having a baby with Down’s syndrome, Edwards’ syndrome or Patau’s syndrome. […] A higher-chance result does not mean your baby definitely has Down’s syndrome, Edwards’ syndrome or Patau’s syndrome. […] A lower-chance result does not mean there’s no chance at all of the baby having Down’s syndrome, Edwards’ syndrome or Patau’s syndrome.

• #14 Screening for Down’s syndrome, Edwards’ syndrome and Patau’s syndrome – NHS

  https://www.nhs.uk/pregnancy/your-pregnancy-care/screening-for-downs-edwards-pataus-syndrome/

  If you have screening for all 3 conditions, you will receive 2 results: 1 for your chance of having a baby with Down’s syndrome, and 1 for your joint chance of having a baby with Edwards’ syndrome or Patau’s syndrome. […] If you have a higher-chance result, you can decide to: not have any further testing; have a second screening test called non-invasive prenatal testing (NIPT) this is a blood test, which can give you a more accurate screening result and help you to decide whether to have a diagnostic test or not; have a diagnostic test, such as amniocentesis or chorionic villus sampling (CVS) straight away this will tell you for certain whether or not your baby has Down’s syndrome, Edwards’ syndrome or Patau’s syndrome, but in rare cases can cause a miscarriage. […] If you find out your baby has Down’s syndrome, Edwards’ syndrome or Patau’s syndrome a specialist doctor (obstetrician) or midwife will talk to you about your options.

• #15

  https://www.gov.uk/government/publications/screening-tests-for-you-and-your-baby/downs-syndrome-edwards-syndrome-and-pataus-syndrome-combined-or-quadruple-test-taken-on-or-after-1-june-2021

  To find out how likely it is that your baby has Pataus syndrome (Trisomy 13 or T13). […] Following either of these screening tests you may be offered a diagnostic test to confirm whether or not the baby has one of the conditions. […] If you receive a higher-chance result from the first screening test, you may need to decide whether to have a second screening test or a diagnostic test that has a risk of miscarriage. […] The test cannot tell you if your baby definitely has one of these conditions. It can provide information that may lead to further decisions about your pregnancy. […] Diagnostic tests give a definite answer. They test cells from the placenta or fluid surrounding your baby. […] Following the diagnostic test, some women will find out their baby has Pataus syndrome.

• #16 Trisomy 13 | Causes, Types, Diagnosis & Treatment

  https://www.cincinnatichildrens.org/health/t/trisomy-13

  Most babies with trisomy 13 will have abnormal ultrasound findings during pregnancy. […] There are also genetic tests for trisomy 13 during pregnancy. Some tests, called screening tests, can be done using a sample of the mothers blood to determine if there is a high risk for trisomy 13 in the baby. […] The way to get a more definite answer about trisomy 13 is with diagnostic genetic testing. Diagnostic genetic testing for trisomy 13 can be done by testing the placenta (called a chorionic villi sample or CVS) during the first trimester of pregnancy or the amniotic fluid (called an amniocentesis) during the second or third trimesters. […] Other people may have genetic testing after abnormal ultrasound findings raised the concern for trisomy 13 to get more certain answers about the diagnosis.

• #17 Trisomy 13: Symptoms, Diagnosis, Treatment

  https://www.webmd.com/children/trisomy-13

  Your doctor might notice physical signs of trisomy 13 during your regular first-trimester fetal ultrasounds. […] If your fetus is at risk of having abnormal chromosomes, your doctor may do screening tests such as cell-free DNA screening (NIPT) or the PAPP-A (pregnancy-associated plasma protein A). […] To make sure, your doctor will likely recommend a karyotype test, such as a chorionic villus sampling (CVS) or amniocentesis, the most common diagnostic test for trisomy 13. […] If you didn’t have genetic testing during pregnancy, the diagnosis is confirmed after your baby is born, when the doctor can look at their symptoms.

• #18 Patau Syndrome: Practice Essentials, Pathophysiology, Epidemiology

  https://emedicine.medscape.com/article/947706-overview

  Patau syndrome, also called trisomy 13, is the least common and most severe of the viable autosomal trisomies. […] Cytogenetic analysis is a necessary step in the prenatal diagnosis of Patau syndrome. […] Antecedents to the prenatal diagnosis of Patau syndrome include abnormal first or second trimester aneuploidy screening and abnormal prenatal ultrasonographic findings, including birth defects or growth restriction. […] In addition to conventional cytogenetics, fluorescent in-situ hybridization (FISH) on interphase cells could be used to obtain a more rapid prenatal diagnosis. […] Once a diagnosis of Patau syndrome is made, pregnancy management varies according to the gestational age at diagnosis. […] Surgical interventions in Patau syndrome are generally withheld for the first few months of life because of the high mortality rates of babies with the condition.

• #19 Typical Morphological Features on Prenatal Ultrasound of Fetuses With Trisomy 13 (Patau’s Syndrome) | Tran | Journal of Clinical Gynecology and Obstetrics

  https://jcgo.org/index.php/jcgo/article/view/848/525

  Trisomy 13 (Pataus syndrome) is a devastating chromosomal abnormality with a poor prognosis. Fetal ultrasound is an effective screening method for early detection of trisomy 13. This study aimed to describe the typical morphological features detected on prenatal ultrasound in fetuses with trisomy 13 at Vietnam National Hospital of Obstetrics and Gynecology from 2012 to 2021. […] Trisomy 13 was detected in 98% of fetuses on ultrasound in the first and second trimesters. Of the 23 fetuses examined in the first trimester, 18 had increased nuchal translucency (NT 3 mm). The major structural abnormalities detected in fetuses with trisomy 13 included facial malformations (53.85%), brain anomalies (26.92%), heart defects (26.92%), abdominal wall abnormalities (23.08%), and kidney anomalies (26.92%). Nine cases of trisomy 13 (18%) were not detected on ultrasound.

• #20 Patau Syndrome – A case later diagnosed

  https://oatext.com/patau-syndrome-a-case-later-diagnosed.php

  A 35-year-old G3P2002 at 39 weeks gestation presents to labor and delivery (LD) with uterine contractions, and is found to be in active labor with the fetus in head presentation. […] Ultrasound evaluation upon presentation to LD confirms that the infant is in head presentation; the estimated fetal weight (EFW) is 3400 g. […] The infant had a bilateral cleft lip and palate, became a karyotype that resulted with an extra copy of chromosome 13. […] Trisomy 13 or Patau syndrome in 1960, was described as one genetic disorder in which a person has an extra copy of chromosome 13 (or 3 copies of genetic material from chromosome 13, instead of the usual 2 copies). […] Prenatal diagnosis is feasible by G-banding of chromosomes from chorionic villi, amniocytes, and peripheral leukocytes, while ultrasound screening can reveal an enlarged nuchal translucency at 12-14 weeks of gestation, and a wide spectrum of major anomalies that can be associated with trisomy 13 such as; CNS anomalies (45%-55%): holoprosencephaly, agenesis of the corpus callosum, and cerebellar malformations. […] Trisomy 13 or Patau syndrome is a lethal condition in most cases, and 95% of the survivors die within 6 months.

• #21 Patau Syndrome (Trisomy 13) Symptoms and Diagnosis

  https://www.verywellhealth.com/patau-syndrome-trisomy-13-2860981

  Patau syndrome is often diagnosed during routine and optional prenatal screenings, including maternal blood screenings, fetal ultrasound, chorionic villus sampling, and amniocentesis. A karyotype test is the most common type of test used for diagnosis. […] If not detected during pregnancy and the baby is born, the symptoms of Patau syndrome are evident at birth. Patau syndrome may be mistaken for Edwards syndrome, so genetic testing must be done to confirm the diagnosis. […] Imaging studies such as computed tomography (CT) or magnetic resonance imaging (MRI) should be done to look for brain, heart, and kidney defects. An ultrasound of the heart (echocardiogram) should be performed given the high frequency of heart defects associated with Patau syndrome.

• #22 Patau syndrome – Wikipedia

  https://en.wikipedia.org/wiki/Patau_syndrome

  Patau syndrome can also occur when part of chromosome 13 becomes attached to another chromosome (translocated) before or at conception in a Robertsonian translocation. Affected people have two copies of chromosome 13, plus extra material from chromosome 13 attached to another chromosome. With a translocation, the person has a partial trisomy for chromosome 13, and often the physical signs of the syndrome differ from the typical Patau syndrome. […] Diagnosis is usually based on clinical findings, although fetal chromosome testing will show trisomy 13. While many of the physical findings are similar to Edwards syndrome, there are a few unique traits, such as polydactyly. However, unlike Edwards syndrome and Down syndrome, the quad screen does not provide a reliable means of screening for this disorder. This is due to the variability of the results seen in fetuses with Patau.

• #23 Trisomy 13 (Patau Syndrome): What You Need to Know

  https://www.rupahealth.com/post/trisomy-13-patau-syndrome-what-you-need-to-know

  Trisomy 13 (Patau Syndrome) presents with a range of physical and neurological symptoms, and their severity can vary greatly. Common physical features of Trisomy 13 include cleft lip and/or palate, scalp defects (cutis aplasia), small or underdeveloped eyes, microcephaly (small head), extra fingers or toes (polydactyly), heart defects, and kidney problems. […] Understanding the symptoms and diagnostic methods for Trisomy 13 is key for families and healthcare providers in navigating the challenges this rare condition presents. […] Confirming a diagnosis of Trisomy 13 typically involves medical testing before and after birth. Early diagnosis is essential for providing families with the information they need to make informed care decisions. […] Prenatal screenings help identify an increased risk of Trisomy 13. These may include blood tests, chorionic villus sampling (CVS), and amniocentesis.

• #24 Trisomy 13 (Patau Syndrome): Symptoms, Causes & Outlook

  https://my.clevelandclinic.org/health/diseases/24647-trisomy-13-patau-syndrome

  A child diagnosed with trisomy 13 has a small head, low-set ears and a cleft palate. […] Trisomy 13 requires immediate and long-term treatment after your baby is born to alleviate any symptoms associated with the condition. Treatment for children born with trisomy includes: Educational support. Medicines to reduce symptoms. Speech, behavioral and physical therapy. Surgery to repair any physical abnormalities. […] During the first trimester of pregnancy, your healthcare provider may offer genetic testing in addition to prenatal ultrasounds, with tests as early as 11 to 14 weeks to check for genetic changes, like a third chromosome attached to a pair. Confirmation of the diagnosis occurs after your baby is born, when your healthcare provider can physically examine your baby for symptoms and provide additional tests, if necessary.

• #25 Trisomy 13: MedlinePlus GeneticsLock

  https://medlineplus.gov/genetics/condition/trisomy-13/

  Trisomy 13, also called Patau syndrome, is a chromosomal condition associated with severe intellectual disability and physical abnormalities in many parts of the body. […] Individuals with trisomy 13 often have heart defects, brain or spinal cord abnormalities, very small or poorly developed eyes (microphthalmia), extra fingers or toes, an opening in the lip (a cleft lip) with or without an opening in the roof of the mouth (a cleft palate), and weak muscle tone (hypotonia). […] Due to the presence of several life-threatening medical problems, many infants with trisomy 13 die within their first days or weeks of life. Only five percent to 10 percent of children with this condition live past their first year. […] Trisomy 13 occurs in about 1 in 16,000 newborns. […] Most cases of trisomy 13 result from having three copies of chromosome 13 in each cell in the body instead of the usual two copies.

• #26 SSA – POMS: DI 23022.480 – Patau Syndrome (Trisomy 13) – 08/28/2020

  https://secure.ssa.gov/POMS.NSF/lnx/0423022480!OpenDocument&Click=

  Patau syndrome is a genetic disorder in which all or a portion of chromosome 13 appears three times (trisomy) rather than twice in cells of the body. The extra material interferes with normal development, leading to severe intellectual disability and physical abnormalities in many parts of the body. […] Diagnostic testing: Cardiac ultrasound may show arial septal defect, patent ductus arteriosus, and ventricular septal defect; Gastrointestinal x-rays or ultrasound may show rotation of the colon; and MRI or CT scans of the head may reveal a problem with the structure of the brain, where the two sides of the brain are joined (holoprosencephaly). […] Suggested MER for Evaluation: Clinical examination that describes diagnostic features of the impairment and laboratory studies are needed to confirm the diagnosis; MRI or CT scan of the brain; and Laboratory tests showing results of genetic testing (chromosomal analysis).

• #27 Trisomy 13 Information | Mount Sinai – New York

  https://www.mountsinai.org/health-library/diseases-conditions/trisomy-13

  Patau syndrome is a genetic disorder in which a person has 3 copies of genetic material from chromosome 13, instead of the usual 2 copies. […] Trisomy 13 can be diagnosed before birth by amniocentesis with chromosome studies of the amniotic cells. […] Chromosome studies show trisomy 13, trisomy 13 mosaicism, or partial trisomy. Rarely, the extra material may be attached to another chromosome (translocation).

• #28 Trisomy 13 (Patau Syndrome): What You Need to Know

  https://www.rupahealth.com/post/trisomy-13-patau-syndrome-what-you-need-to-know

  Trisomy 13 is confirmed after birth with a karyotype test, which analyzes the chromosomes from a blood sample to detect the extra chromosome 13. This is the most reliable method for diagnosing Trisomy 13. […] Genetic testing is essential for a definitive diagnosis. Healthcare professionals should use all available diagnostic tools, including genetic testing, to avoid misdiagnosis and ensure families receive accurate information.

• #29 Patau syndrome: Causes, symptoms and life expectancy of diagnosed babies, Lifestyle News – AsiaOne

  https://www.asiaone.com/lifestyle/patau-syndrome-causes-symptoms-and-life-expectancy-diagnosed-babies

  Yes, trisomy 13 or Patau syndrome can be detected prenatally, through chorionic villus sampling or amniocentesis. […] Prenatal tests such as maternal blood screens, foetal ultrasounds, chorionic villus sampling, and amniocentesis are frequently used to identify Patau syndrome. […] Genetic testing is necessary to establish the correct diagnosis because Patau syndrome might be confused with Edwards syndrome. […] To check for brain, heart, and renal problems, imaging examinations like computed tomography (CT) or magnetic resonance imaging (MRI) should be performed. […] Given the high prevalence of heart problems linked to Patau syndrome, an echocardiogram (ultrasound of the heart) should be performed.

• #30

  https://www.gov.uk/government/publications/trisomy-13-description-in-brief/pataus-syndrome-information-for-parents

  Sadly, many babies with Pataus Syndrome are miscarried during pregnancy. […] Of those babies born alive around 11% live past their first birthday. […] If it is confirmed that your baby has Pataus syndrome, you can talk to the team caring for you during your pregnancy about your babys condition and your options. […] You can be referred to a genetic counsellor to discuss future pregnancies.

• #31

  https://www.gov.uk/government/publications/trisomy-13-description-in-brief/pataus-syndrome-information-for-parents

  You are reading this information because your baby is suspected of having Pataus syndrome (also known as Trisomy 13 or T13) following your 20-week scan. […] We screen for Pataus syndrome at the 20-week scan (between 18+0 and 20 +6 weeks of pregnancy). Screening for Pataus syndrome is also part of the combined test offered earlier in pregnancy between 10 and 14 weeks. […] Because the result of the scan suggests your baby may have a condition such as Pataus syndrome, we are referring you to a specialist team which cares for pregnant mothers and their babies before they are born. […] The specialist team may offer you extra tests, such as chorionic villus sampling (CVS) or amniocentesis, which will be able to confirm if your baby has Pataus syndrome and what this might mean. […] There is no cure for Pataus syndrome.

• #32 Reddit – The heart of the internet

  https://www.reddit.com/r/pregnant/comments/jt94n6/19_weeks_with_a_trisomy_13_diagnosis/

  Our doctor is confident our baby could have Trisomy 13, with an underdeveloped brain, cleft lip and palate, and eyes which are a little close together. […] We decided to do the Amniocentesis, more or less for a definitive diagnosis and a reoccurrence rate. […] The doctor said even with a negative diagnosis of Trisomy 13, 18, or Patau, our baby would be born with a significant brain abnormality, cleft palate and lip, and very little chance to survive the month after birth.

• #33 Presentation: Pregnancy where previous pregnancy or child diagnosed with trisomy 21, 18 or 13 — In the Clinic

  https://www.genomicseducation.hee.nhs.uk/genotes/in-the-clinic/presentation-pregnancy-where-previous-pregnancy-or-child-diagnosed-with-trisomy-21-18-or-13/

  A pregnant woman is referred to an appropriately trained midwife (or genetic counsellor), having disclosed that her first pregnancy was terminated following a diagnosis of Patau syndrome (trisomy 13). This was diagnosed via a chorionic villus sample (CVS) following a higher-chance first-trimester combined screening and non-invasive prenatal testing (NIPT). […] The R445 testing pathway is offered to all women with a history of a pregnancy or child diagnosed with full trisomy 21, 18 or 13. […] This group of women are offered this test because a past history of a pregnancy or child with full trisomy 21, 18 or 13 is associated with an increased chance of recurrence in a future pregnancy (a priori chance of about 1% or the chance related to maternal age, whichever is the greatest). […] Prior to offering R445, it is recommended that the report from the previous affected pregnancy is reviewed to confirm full trisomy of chromosome 21, 18 or 13. However, the test can still be offered even if the previous report is unavailable. In such cases, it should be explained to the woman that the test is being performed on the basis that the previous pregnancy was a full trisomy 21, 18 or 13 and not another chromosomal anomaly, as these will not be detectable by NIPT. […] Where eligibility criteria for R445 is met, pregnant women should be offered the following three options: No testing for trisomy 21, 18 or 13, Pre-natal diagnosis (CVS or amniocentesis), Screening via R445 Common aneuploidy testing NIPT: For trisomy 21, 18 or 13.

• #34 Trisomy disorders | Better Health Channel

  https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/trisomy-disorders

  In Victoria, Patau syndrome affects around one in 3,000 pregnancies. Patau syndrome is also known as Trisomy 13, because the person has three copies of chromosome 13 instead of two. […] Prenatal tests that can help detect trisomy disorders include: ultrasound scans sound waves are used to create a picture, maternal serum screening a specialised blood test, amniocentesis a sample of the amniotic fluid is taken and examined, chorionic villus sampling a sample of cells from the chorion, the tissue that will ultimately become the placenta, is taken and examined, non-invasive prenatal testing (NIPT) a screening test that measures fetal DNA circulating in the mothers blood. […] If your child has been diagnosed with a trisomy condition, it may be helpful to speak to a genetic counsellor. Genetic counsellors are health professionals qualified in both counselling and genetics.

• #35 Trisomy 13: MedlinePlus GeneticsLock

  https://medlineplus.gov/genetics/condition/trisomy-13/

  The severity of mosaic trisomy 13 depends on the type and number of cells that have the extra chromosome. […] The physical features of mosaic trisomy 13 are often milder than those of full trisomy 13. […] Most cases of trisomy 13 are not inherited and result from random events during the formation of eggs and sperm in healthy parents. […] An error in cell division called nondisjunction results in a reproductive cell with an abnormal number of chromosomes. […] If one of these atypical reproductive cells contributes to the genetic makeup of a child, the child will have an extra chromosome 13 in each cell of the body. […] Translocation trisomy 13 can be inherited. […] A person with a balanced translocation involving chromosome 13 has an increased chance of passing extra material from chromosome 13 to their children.

• #36 SciELO Brazil – Trisomy 13, home health-care and multidisciplinary approach: Case report Trisomy 13, home health-care and multidisciplinary approach: Case report

  https://www.scielo.br/j/rpp/a/pGTCVdsSS4RZC9sbbZJGHZk/

  Objective: To recognize and address Pataus syndrome, despite its rarity and associated low life expectancy, through the presentation of a case study of a 2-year-old patient receiving Home Care services. […] The diagnosis of Pataus syndrome was confirmed through karyotyping after birth. […] During prenatal care, chromosomal abnormalities associated with Pataus syndrome can be detected through ultrasounds, a non-invasive screening method that poses minimal risk to the fetus. However, a final diagnosis is confirmed through a karyotype analysis. […] The patient, who is now two years old, receives dedicated care at home through the Home Care program, which could be contributing to patient survival. […] The profound impact of this approach on patient outcomes cannot be overlooked. […] In the field of pediatric medicine, there has been a growing recognition of the pivotal role played by home-based care and multidisciplinary teams in enhancing the survival rates and quality of life for medically complex patients, including patients with Pataus syndrome.

• #37 What is 13-trisomy (Pato syndrome)? What is prenatal diagnosis and what are the disadvantagesLogical problemsPercentage of patients in their early 30s | (EN)

  https://www.hiro-clinic.or.jp/nipt/patau-syndrome/?lang=en

  Patau syndrome, also called trisomy 13 syndrome, is also commonly referred to as trisomy 13. […] Testing to confirm the diagnosis of Patau Syndrome can be performed before or after the baby is born. […] Trisomy 13 can also be detected on prenatal ultrasound examination by the following developmental delays and physical characteristics of the baby: […] If Patau syndrome is suspected, or if the results are unclear, an amniotic fluid testing and chorionic villus test will be performed to determine if there are any other chromosomal abnormalities found in the baby. […] After the baby is born, you may initially suspect Patau syndrome based on physical characteristics/appearance, and testing with the babys blood will then confirm the suspected diagnosis. […] There is currently no fundamental treatment for the complications that babies with Patau syndrome have. Supportive care, such as easing conditions, is used to treat the complications seen in each baby.

• #38 What is 13-trisomy (Pato syndrome)? What is prenatal diagnosis and what are the disadvantagesLogical problemsPercentage of patients in their early 30s | (EN)

  https://www.hiro-clinic.or.jp/nipt/patau-syndrome/?lang=en

  In choosing any of these treatment options, it is important to discuss the treatment plan with the family, respect their wishes, and provide them with sufficient information about the prognosis and the risks of treatment and surgery. […] Babies grow normally in the uterus, although sometimes with developmental delays, and require early detection through Ultrasound and NIPT (New non-invasive Prenatal Testing) as well as coping and treatment after birth.

• #39 Azthena logo with the word Azthena

  https://www.news-medical.net/health/What-is-Pataus-Syndrome.aspx

  The diagnosis of a genetic disorder is done by screening the pregnant woman at 10 to 14 weeks. The combined test will check for Downs syndrome, Edwards syndrome and Pataus syndrome. It involves a blood test combined with an ultrasound scan. If the fetus is found to be at risk, additional tests may be done by using a sample of cells from the fetus. People with a family history of trisomy 13 should opt for the tests. […] The two ways to get fetal cells are amniocentesis and chorionic villus sampling. In amniocentesis, a sample of the amniotic fluid is removed from the womb as it tends to contain the cells shed by the developing fetus. In chorionic villus sampling cells will be taken from the placenta which links the blood supply of the mother to the developing fetus. Both tests are highly invasive and include a risk of miscarriage.

• #40 Trisomy 13 (Patau syndrome)

  https://www.aboutkidshealth.ca/trisomy-13-patau-syndrome

  Babies with trisomy 13 have a unique group of characteristics and can be diagnosed by physical examination. […] To confirm the diagnosis, a small blood sample can be taken and the chromosomes can be analyzed to determine the presence of an extra chromosome 13. […] Chromosomal abnormalities can also be diagnosed before birth by analyzing cells in the amniotic fluid obtained by amniocentesis, or from the placenta, obtained by chorionic villus sampling (CVS) or from the fetal blood obtained by cordocentesis. […] Screening for trisomy 13 is also available through first trimester screening (FTS), integrated prenatal screening (IPS) or by non-invasive prenatal testing (NIPT). […] The diagnosis of trisomy 13 can also be suggested by detailed fetal ultrasound; however, ultrasound is not 100% accurate, since not all abnormalities can be seen on ultrasound and the same abnormalities seen prenatally in trisomy 13 can also be seen in other conditions. […] In contrast, a chromosome analysis, whether performed on fetal/newborn blood sample, cells from the amniotic fluid or placental sample, is over 99.9% accurate.

• #41 PATAU SYNDROME (TRISOMY 13)

  https://medicover-genetics.com/product/patau-syndrome/

  Patau syndrome is caused by an extra chromosome 13. In 75% of cases, the extra chromosome is in all cells of the body (called free trisomy 13), while mosaic trisomy (extra chromosome in some cells) is seen in 5%, and an unbalanced translocation (part of an extra chromosome in cells) is seen in 20%. […] Prenatal detection is possible through ultrasound, serum marker screening, and non-invasive prenatal testing (NIPT). NIPT has the highest detection accuracy and can be performed from the 10th week of pregnancy. Prenatal diagnosis is integral in trisomy 13 management, as it reduces postnatal diagnostic delays, and facilitates earlier and better decision-making by parents and physicians. Diagnosis is confirmed by karyotying after birth.

• #42 Typical Morphological Features on Prenatal Ultrasound of Fetuses With Trisomy 13 (Patau’s Syndrome) | Tran | Journal of Clinical Gynecology and Obstetrics

  https://jcgo.org/index.php/jcgo/article/view/848/525

  Our findings indicate that the majority of fetuses with trisomy 13 display morphological abnormalities on ultrasound in the first and second trimesters, with increased NT and major structural abnormalities being important signs for early screening. However, it should be noted that a small number of fetuses with trisomy 13 can be missed on ultrasound, highlighting the importance of combining fetal ultrasound with other prenatal screening methods for the early detection of fetal abnormalities.

• #43 Trisomy 13 (Patau syndrome) | Revvity

  https://www.revvity.com/disorders/trisomy-13-patau-syndrome

  Patau syndrome is a rare condition that typically causes significant intellectual disabilities, heart defects, developmental problems, weakness in muscles and other physical issues. The syndrome carries a high mortality rate: in utero death occurs in over 95% of fetuses with this chromosomal anomaly and only few babies survive to their first birthday. […] Testing for Patau syndrome can be performed during pregnancy, as early as the 1st trimester. Tests fall into two categories: either screening or diagnostic tests. While diagnostic tests can provide a definitive answer as to whether there is Patau syndrome or not, they are invasive and are thus associated with a small chance of miscarriage. Screening tests, on the other hand, are non-invasive (blood tests or ultrasounds) and thus have no associated increased risk for miscarriage. Although they are safe for the pregnancy, they are not diagnostic and can only say whether there is a high or low chance that the baby has Patau syndrome.

• #44 What Is the Cause of Patau Syndrome?

  https://www.icliniq.com/articles/genetic-disorders/patau-syndrome

  Fetal-Free DNA Analysis- It is a prenatal investigation where the genetic material of the mother and the baby is collected from the maternal blood. This test helps to rule out any genetic disorders such as trisomy 13, trisomy 18, and trisomy 21. […] Prenatal Ultrasounds- Trisomy 13 can be detected through ultrasound screenings from the 17th week onwards. They help to detect the abnormalities seen in the nervous system and cardiac and renal systems, facial deformities, etc. However, the ultrasound can only help to detect the possibilities of Patau syndrome. It does not provide 100 % accuracy. […] Physical Examination- Soon after birth, a thorough physical examination of the baby is done by the physician to identify any physical abnormalities. Sometimes the blood samples of the baby are also collected for lab investigations.

• #45 SciELO Brazil – Trisomy 13, home health-care and multidisciplinary approach: Case report Trisomy 13, home health-care and multidisciplinary approach: Case report

  https://www.scielo.br/j/rpp/a/pGTCVdsSS4RZC9sbbZJGHZk/

  The increased survival rate observed in the aforementioned case can be possibly attributed to the holistic care provided within the patient’s home environment. […] This proactive approach ensured prompt medical attention and contributed to the overall management of the patient’s health, preventing the worsening of the condition. […] There has been a notable increase in reported cases of individuals with Pataus syndrome living longer. This challenges previous assumptions about the condition’s severity and lifespan. Improved medical care, early detection, and supportive interventions have contributed to this trend.

• #46 What Is Trisomy 13 (Patau Syndrome)? – Consensus: AI Search Engine for Research

  https://consensus.app/home/blog/what-is-trisomy-13-patau-syndrome/

  Diagnosis of Trisomy 13 can be made prenatally or after birth. Prenatal diagnosis is typically conducted through genetic testing methods such as amniocentesis or chorionic villus sampling, which can detect the extra chromosome. Postnatal diagnosis involves a physical examination and genetic testing to confirm the presence of the extra chromosome 13. […] Early diagnosis and supportive care are crucial in managing the condition and improving the quality of life for affected individuals.

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