Ciąża poroniona – Zapobieganie i profilaktyka

Ciąża poroniona
Zapobieganie i profilaktyka

Ciąża poroniona (molar pregnancy) to rzadkie powikłanie, występujące z częstością 0,2-9,9/1000 ciąż, charakteryzujące się nieprawidłowym rozwojem tkanki łożyskowej uniemożliwiającym rozwój płodu. Kluczowe jest odroczenie kolejnej ciąży o 6-12 miesięcy (12-24 miesiące po chemioterapii z powodu GTN), z zastosowaniem skutecznej antykoncepcji, najczęściej metod barierowych, aby umożliwić monitorowanie poziomu hCG do normalizacji i zapobiec maskowaniu nawrotu choroby. Monitorowanie poziomu hCG powinno trwać co najmniej 6-12 miesięcy, a u pacjentek po GTN – do 24 miesięcy. Wczesne badania ultrasonograficzne (około 10. tygodnia ciąży) oraz kontynuacja monitorowania beta-hCG po porodzie są niezbędne dla wczesnego wykrycia powikłań. Ryzyko nawrotu jest niskie (1-2%), a współczesne leczenie GTN cechuje się skutecznością 98-100%.

Ciąża poroniona – Profilaktyka i zapobieganie

Opóźnienie kolejnej ciąży po ciąży poronionej
Monitorowanie po ciąży poronionej
Antykoncepcja po ciąży poronionej
Monitorowanie kolejnych ciąż
Profilaktyka chemioterapeutyczna
Wykorzystanie diagnostyki genetycznej w profilaktyce
Inne strategie profilaktyczne
Postępowanie w przypadku podejrzenia ciąży poronionej
Podsumowanie profilaktyki ciąży poronionej
Kolejne rozdziały

Ciąża poroniona – Profilaktyka i zapobieganie

Ciąża poroniona (molar pregnancy) to rzadkie powikłanie ciąży występujące z częstotliwością od 0,2 do 9,9 na 1000 ciąż na całym świecie.¹ Charakteryzuje się nieprawidłowym rozwojem tkanki łożyskowej, która nie może prowadzić do rozwoju zdrowego płodu.² Niestety, nie istnieje skuteczna metoda całkowitego zapobiegania ciąży poronionej, jednak można podjąć pewne działania w celu zmniejszenia ryzyka powikłań lub nawrotu tego stanu.³⁴

Opóźnienie kolejnej ciąży po ciąży poronionej

Jednym z najważniejszych zaleceń profilaktycznych dla kobiet po przebytej ciąży poronionej jest unikanie kolejnej ciąży przez określony czas:⁵⁶

Większość specjalistów zaleca odczekanie od 6 do 12 miesięcy przed próbą ponownego zajścia w ciążę⁷⁸
W tym okresie konieczne jest stosowanie skutecznej metody antykoncepcji⁹¹⁰
Dla pacjentek po chemioterapii z powodu nowotworu trofoblastu (GTN) zaleca się odroczenie ciąży na 12 miesięcy (24 miesiące dla kobiet z chorobą w stadium IV)¹⁰

Odroczenie kolejnej ciąży pozwala na dokładne monitorowanie poziomu hCG i upewnienie się, że nieprawidłowa tkanka nie rośnie ponownie.⁹ Kobiety, które zachodzą w ciążę zbyt wcześnie po ciąży poronionej, mają wyższe ryzyko kolejnej ciąży poronionej.⁹

Monitorowanie po ciąży poronionej

Po rozpoznaniu i leczeniu ciąży poronionej konieczne jest ścisłe monitorowanie, aby wykryć ewentualne pozostałości tkanki trofoblastycznej lub rozwój nowotworu trofoblastu ciążowego (GTN):¹¹¹²

Regularne oznaczanie poziomu hormonu hCG we krwi lub moczu do czasu jego normalizacji¹¹
Kontynuowanie monitorowania przez co najmniej 6 miesięcy, a często do 12 miesięcy¹³
W przypadku pacjentek po chemioterapii z powodu GTN, monitorowanie poziomu hCG powinno być kontynuowane przez 12 miesięcy (24 miesiące dla pacjentek z chorobą w stadium IV)¹⁰

Regularne monitorowanie jest kluczowe dla wczesnego wykrycia ewentualnych powikłań i skutecznego leczenia. Jest to szczególnie ważne, ponieważ współczesne metody leczenia GTN charakteryzują się bardzo wysoką skutecznością (98-100% wyleczeń).¹¹

Antykoncepcja po ciąży poronionej

Podczas okresu monitorowania po ciąży poronionej zaleca się stosowanie skutecznej antykoncepcji:¹⁴

Prezerwatywy (metody barierowe) są często preferowane, ponieważ antykoncepcja hormonalna i wkładki wewnątrzmaciczne mogą być względnie przeciwwskazane¹⁵
Doustna antykoncepcja jest bezpieczna według niektórych źródeł¹⁰
Metoda antykoncepcji powinna być skuteczna przez cały okres monitorowania⁷

Zapobieganie ciąży w okresie monitorowania jest kluczowe, ponieważ nowa ciąża może maskować objawy nawrotu choroby i utrudniać interpretację wyników badań hCG.¹⁶

Monitorowanie kolejnych ciąż

Po przebytej ciąży poronionej, kolejne ciąże wymagają szczególnego nadzoru:⁶

Wczesne badania ultrasonograficzne w celu potwierdzenia prawidłowego rozwoju płodu⁸
Badanie USG zalecane jest około 10. tygodnia ciąży¹⁰
Monitorowanie poziomu beta-hCG¹⁵
Kontynuacja monitorowania poziomu beta-hCG przez 6 miesięcy po porodzie¹⁵

Warto zaznaczyć, że ryzyko kolejnej ciąży poronionej jest stosunkowo niskie – u 99 ze 100 kobiet kolejna ciąża będzie przebiegać prawidłowo.⁵¹⁷ Pomimo przebytej ciąży poronionej, szanse na zdrową ciążę i urodzenie zdrowego dziecka są doskonałe.¹⁸

Profilaktyka chemioterapeutyczna

Profilaktyczna chemioterapia (PC) w zapobieganiu nowotworowi trofoblastu ciążowego po ciąży poronionej pozostaje kontrowersyjna:¹⁹²⁰

Profilaktyczna chemioterapia została po raz pierwszy wprowadzona przez Lewisa i wsp. w 1966 roku jako potencjalna metoda zapobiegania złośliwej transformacji ciąży poronionej wysokiego ryzyka²¹
Chociaż dostępne dane wskazują, że profilaktyczna chemioterapia może zmniejszać ryzyko rozwoju GTN, praktyka ta również opóźnia diagnozę i leczenie GTN, gdy do niego dochodzi, a także niepotrzebnie naraża kobiety, u których nigdy nie rozwinie się GTN, na toksyczne działania niepożądane²⁰
Badania sugerują, że jednorazowa dawka metotreksatu (MTX) jako profilaktyczna chemioterapia może nie być skuteczną opcją terapeutyczną w zapobieganiu GTN u pacjentek z ciążą poronioną wysokiego ryzyka²¹
Obecnie nie ma wystarczających dowodów, aby uzasadnić podawanie leków przeciwnowotworowych kobietom z ciążą poronioną. GTN jest prawie zawsze wyleczalne przy zastosowaniu nowoczesnej opieki, a profilaktyczna chemioterapia zmniejszyłaby jedynie ryzyko konieczności pełnej chemioterapii, ale nie wyeliminowałaby całkowicie tego ryzyka²²

Obecne dowody przemawiające za profilaktyczną chemioterapią są ograniczone ze względu na małą liczbę i niską jakość metodologiczną dostępnych badań klinicznych. Ponieważ profilaktyczna chemioterapia może zwiększać oporność na leki, opóźniać leczenie GTN i narażać kobiety na toksyczne skutki uboczne, praktyka ta nie może być obecnie zalecana.²²

Wykorzystanie diagnostyki genetycznej w profilaktyce

Nowsze podejścia do profilaktyki ciąży poronionej, szczególnie u pacjentek z wywiadem ciąży poronionej lub rodzinnym obciążeniem, obejmują:¹

Poradnictwo genetyczne, które może odegrać ważną rolę w zapobieganiu przyszłym ciążom poronionym poprzez identyfikację osób z grupy ryzyka i udzielanie wskazówek¹
W przypadku pacjentek poddawanych zapłodnieniu in vitro (IVF), diagnostyka preimplantacyjna (PGD) może pomóc w uniknięciu ciąży poronionej:¹⁴
- W przypadku całkowitej ciąży poronionej – unikanie transferu embrionów żeńskich (XX) i selektywny transfer tylko embrionów męskich (XY) może praktycznie wyeliminować ryzyko całkowitej ciąży poronionej¹⁴
- W przypadku częściowej ciąży poronionej – selektywny transfer embrionów, w których wykluczono triploidię¹⁴

W przypadkach, gdy kobieta korzystająca z IVF ma rodzinny wywiad ciąży poronionej lub sama przeszła ciążę poronioną, diagnostyka preimplantacyjna może zapewnić skuteczny sposób na niemal całkowite zapobieżenie wystąpieniu tego stanu.¹⁴

Inne strategie profilaktyczne

Chociaż nie ma absolutnego sposobu na zapobieganie ciąży poronionej, niektóre dodatkowe strategie mogą potencjalnie zmniejszyć ryzyko:¹

Unikanie ciąży w bardzo młodym (40 lat) wieku, gdyż ryzyko ciąży poronionej jest w tych grupach wiekowych wyższe²³
Odpowiednia opieka prenatalna przez wykwalifikowanego specjalistę, co pozwala na wczesne wykrycie ewentualnych problemów lub powikłań ciąży²³
Zbilansowana dieta bogata w białko pochodzenia zwierzęcego oraz witaminę A, gdyż istnieją pewne dowody, że niedobór białka może przyczyniać się do występowania ciąży poronionej²³
Przestrzeganie zasad bezpiecznego seksu w celu uniknięcia zakażeń wirusowych, które mogą prowadzić do ciąży poronionej²⁴

Warto jednak podkreślić, że ciąża poroniona może wystąpić u każdej kobiety, niezależnie od podjętych środków zapobiegawczych, a jej wystąpienie nie jest spowodowane niczym, co kobieta zrobiła źle.¹⁷

Postępowanie w przypadku podejrzenia ciąży poronionej

Wczesne rozpoznanie i leczenie ciąży poronionej jest kluczowe dla zapobiegania poważnym powikłaniom, w tym nowotworowi trofoblastu ciążowego:²⁵

W przypadku nieprawidłowych objawów ciąży, takich jak krwawienie z pochwy, nasilone nudności poranne lub wydalanie cyst wielkości winogron, należy natychmiast zgłosić się po pomoc medyczną⁸
Leczenie zwykle polega na usunięciu nieprawidłowej tkanki ciążowej poprzez zabieg łyżeczkowania (rozszerzenie i ewakuacja, DE)¹⁰
Royal College of Obstetricians and Gynaecologists zaleca łyżeczkowanie ssące jako najskuteczniejszą metodę leczenia całkowitych zaśniadów groniastych i niewydolnych częściowych zaśniadów²⁶
W przypadku ciąży poronionej należy unikać stosowania leków naskurczowych macicy przed zabiegiem usunięcia¹⁶
We wszystkich przypadkach zaleca się profilaktykę anty-D po ewakuacji, jeśli matka ma ujemny czynnik Rh²⁶

W Wielkiej Brytanii kobietom z rozpoznaniem choroby trofoblastycznej ciąży zaleca się rejestrację w ośrodku GTD w celu obserwacji i monitorowania w przyszłych ciążach.²⁶ Podobne zalecenia dotyczące specjalistycznej opieki obowiązują w wielu krajach.

Podsumowanie profilaktyki ciąży poronionej

Chociaż nie można całkowicie zapobiec ciąży poronionej, można znacząco zmniejszyć ryzyko powikłań i nawrotu poprzez:²⁷²⁸

Opóźnienie kolejnej ciąży o 6-12 miesięcy po ciąży poronionej⁶
Stosowanie skutecznej antykoncepcji w okresie monitorowania⁹
Regularne monitorowanie poziomu hCG po leczeniu¹¹
Specjalistyczną opiekę i wczesne badania USG w kolejnych ciążach⁸
W przypadku pacjentek poddawanych IVF z wywiadem ciąży poronionej – rozważenie diagnostyki preimplantacyjnej¹⁴

Warto podkreślić, że ryzyko nawrotu ciąży poronionej jest niskie (około 1-2%), a większość kobiet po przebytej ciąży poronionej może oczekiwać zdrowej ciąży w przyszłości.¹⁸⁵ Współczesne metody leczenia zapewniają bardzo wysoką skuteczność (98-100% wyleczeń), nawet w przypadku rozwoju nowotworu trofoblastu ciążowego.¹¹

Kolejne rozdziały

Zapraszamy do dalszego czytania naszego leksykonu.

Wybierz kolejny rozdział z menu poniżej, aby otworzyć nową podstronę kompedium wiedzy i uzyskać szczegółowe informację o leku, substancji lub chorobie.

Materiały źródłowe

#1 Prevention And Early Detection Of Molar Pregnancy – Klarity Health Library
https://my.klarity.health/prevention-and-early-detection-of-molar-pregnancy/
Molar pregnancy is an infrequent disorder and has an incidence of 0,2 to 9.9 per 1,000 pregnancies worldwide. […] Although a molar pregnancy cant be absolutely and completely prevented, a woman who had a previous molar pregnancy can discuss with her healthcare provider possible ways to reduce the risk in the upcoming pregnancies through genetic counselling and screening and by avoiding certain risk factors. […] Genetic counselling can play an important role in preventing future molar pregnancies by identifying individuals at risk and providing guidance. […] As there is no absolute way to prevent a molar pregnancy from developing, individuals can take a proactive step by seeking medical advice, identifying the risk factors and maintaining a healthy lifestyle. […] Those who had a previous molar pregnancy can take a further step by doing genetic counselling to identify any possible chromosomal abnormality.
#2 Molar pregnancy and gestational trophoblastic disease | RCOG
https://www.rcog.org.uk/for-the-public/browse-our-patient-information/molar-pregnancy-and-gestational-trophoblastic-disease/
Molar pregnancy is an abnormal form of pregnancy that cannot develop into a healthy baby. […] There is nothing you can do to reduce your chance of developing a molar pregnancy. […] The best treatment for a molar pregnancy is an operation to remove the pregnancy tissue from your uterus as this is not a healthy pregnancy. […] It is important to be sure if you have had a molar pregnancy as there is a small risk that some of the abnormal pregnancy cells may develop into a more severe form of GTD. […] Follow-up involves measuring the pregnancy hormone hCG, either in your blood or your urine, until it returns to normal. […] Continuing with this specialist follow-up is important as it is very successful in treating GTD (98100% cure rate) and there are very low rates of progression to more serious forms of GTD.
#3 Molar Pregnancy: Types, Symptoms, Causes & Treatments
https://my.clevelandclinic.org/health/diseases/17889-molar-pregnancy
Theres no way to prevent a molar pregnancy. If youve had a molar pregnancy, you can reduce your likelihood of complications by avoiding another pregnancy for up to one year after your initial molar pregnancy. Talk to your pregnancy care provider about when its safe to begin trying to conceive.
#4 Partial Molar Pregnancy: Causes, Symptoms & Treatment
https://my.clevelandclinic.org/health/diseases/12332-partial-molar-pregnancy
No, you cant prevent a partial molar pregnancy (or a complete molar pregnancy). […] If youve had a partial molar pregnancy before, talk to your healthcare provider about getting pregnant again. They may recommend waiting six months to one year. While the chances of having a molar pregnancy are low, youre at higher risk for a repeat molar pregnancy if youve already had one.
#5 Molar pregnancy and gestational trophoblastic disease | RCOG
https://www.rcog.org.uk/for-the-public/browse-our-patient-information/molar-pregnancy-and-gestational-trophoblastic-disease/
Having a molar pregnancy does not affect your chance of having another baby. However, after a molar pregnancy you should avoid pregnancy until your follow-up programme is complete. […] The risk of a molar pregnancy happening again is low. For 99 out of 100 women their next pregnancy will not be a molar pregnancy.
#6 Molar pregnancy
https://johnsonmemorial.org/jmh-health/disease-conditions/con-20375157
If you’ve had a molar pregnancy, talk to your pregnancy care provider before trying to get pregnant again. You might want to wait six months to one year. The risk of having another molar pregnancy is low, but it’s higher once you’ve had a molar pregnancy. […] During future pregnancies, a care provider may do early ultrasounds to check your condition and make sure the baby is developing.
#7 Molar pregnancy – Diagnosis and treatment – Mayo Clinic
https://www.mayoclinic.org/diseases-conditions/molar-pregnancy/diagnosis-treatment/drc-20375180
A molar pregnancy can’t be allowed to continue. To prevent complications, the affected placental tissue must be removed. Treatment usually consists of one or more of the following steps: […] Because pregnancy HCG levels also increase during a regular pregnancy, a provider might recommend waiting 6 to 12 months before trying to become pregnant again. The provider can recommend a reliable form of birth control during this time.
#8 Molar Pregnancy: Causes, Symptoms & Treatments | Advanced OBGYN Institute
https://www.toplinemd.com/advanced-obgyn-institute/molar-pregnancy-causes-symptoms-treatments/
Consult your doctor if youâve had a molar pregnancy before trying to conceive again. Waiting anywhere from half a year to a whole year may be suggested before attempting to conceive. […] When you get pregnant again, your doctor may recommend preliminary ultrasounds to check on your progress and reassure you that everything is developing correctly. The possibility of prenatal genetic testing for the purpose of identifying a molar pregnancy is also something your doctor may bring up. […] With therapy, molar pregnancies typically end without further difficulties for the mother. After a molar pregnancy, women can usually carry a healthy pregnancy. There is no increased risk of miscarriage associated with this condition. […] Vaginal bleeding, severe morning sickness, or the expulsion of grape-sized cysts during pregnancy are all reasons to seek medical attention at once. The development of further problems can be avoided with prompt diagnosis and treatment.
#9 Hydatidiform Mole – UF Health
https://ufhealth.org/conditions-and-treatments/hydatidiform-mole
There is no way to prevent formation of these masses. […] After treatment, your hCG level will be followed. It is important to avoid another pregnancy and to use a reliable contraceptive for 6 to 12 months after treatment for a molar pregnancy. This time allows for accurate testing to be sure that the abnormal tissue does not grow back. Women who get pregnant too soon after a molar pregnancy are at high risk of having another molar pregnancy.
#10 Gestational Trophoblastic Disease (GTD) Treatment | Dana-Farber Cancer Institute
https://www.dana-farber.org/cancer-care/types/gestational-trophoblastic-disease/treatment
After the diagnosis of complete or partial hydatidiform mole is made or suspected, the uterine contents are removed by suctioning (called dilation and evacuation, DE). […] During the three-month follow-up, it is important to avoid pregnancy. The use of oral contraceptives is safe. […] After completion of chemotherapy, testing for human chorionic gonadotropin (hCG) in the patients blood continues monthly for 12 months (24 months for patients with Stage IV disease). During that time, patients should avoid pregnancy. […] After completing hormone follow-up for hydatidiform mole, women may try to become pregnant whenever they wish. The risk of another molar pregnancy is low. More than 98 percent of women who become pregnant following a molar pregnancy will have a normal pregnancy and are not at increased risk for pregnancy related complications. However, since patients with hydatidiform mole are at some increased risk of another molar pregnancy, it is advisable for them to undergo ultrasound examinations at 10 weeks of gestation to determine if the pregnancy is progressing normally. […] After chemotherapy is completed, women should postpone pregnancy for 12 months (24 months for women with stage IV disease) while they are being followed with hormone testing to make sure the tumor does not recur.
#11 Molar pregnancy and gestational trophoblastic disease | RCOG
https://www.rcog.org.uk/for-the-public/browse-our-patient-information/molar-pregnancy-and-gestational-trophoblastic-disease/
Molar pregnancy is an abnormal form of pregnancy that cannot develop into a healthy baby. […] There is nothing you can do to reduce your chance of developing a molar pregnancy. […] The best treatment for a molar pregnancy is an operation to remove the pregnancy tissue from your uterus as this is not a healthy pregnancy. […] It is important to be sure if you have had a molar pregnancy as there is a small risk that some of the abnormal pregnancy cells may develop into a more severe form of GTD. […] Follow-up involves measuring the pregnancy hormone hCG, either in your blood or your urine, until it returns to normal. […] Continuing with this specialist follow-up is important as it is very successful in treating GTD (98100% cure rate) and there are very low rates of progression to more serious forms of GTD.
#12 What is Molar Pregnancy? Symptoms, Risks and Treatment Options
https://oasisindia.in/blog/molar-pregnancy-symptoms-risks-and-treatment/
Early prenatal care and knowledge of risk factors, such as the mothers age and previous molar pregnancies, can help in early detection as part of molar pregnancy prevention strategies. […] For high-risk people, routine monitoring and ultrasound to check for molar pregnancy are crucial. […] Close monitoring is essential after a molar pregnancy in order to identify any residual molar tissue. […] This requires checking hCG levels routinely to ensure they return to normal. […] To allow for careful monitoring, patients are frequently recommended to forgo pregnancy for six to twelve months. […] To avoid such problems, more medication, including chemotherapy, might be needed if hCG levels stay high.
#13 Discharge Instructions for Hydatidiform Mole | Saint Luke’s Health System
https://www.saintlukeskc.org/health-library/discharge-instructions-hydatidiform-mole
Don’t get pregnant for a year after the molar pregnancy. It’s important that you choose a birth control method. […] Follow-up blood tests will be done at regular intervals for a year or more after a molar pregnancy.
#14 Prevention, Recognition, and Treatment of Hydatidiform Molar Pregnancies – Sher Fertility Solutions | Begin Your Fertility Journey
https://sherfertilitysolutions.com/prevention-recognition-and-treatment-of-hydatidiform-molar-pregnancies/
A hydatidiform molar pregnancy happens when tissue that normally forms the placenta instead becomes a growth, that triggers symptoms of pregnancy. […] Accordingly, if with IVF, one avoids transferring an embryo that by preimplantation genetic diagnosis (PGD) is found to be female (XX) and selectively transfers only male (XY) embryos the possibility of a complete molar pregnancy can be virtually eliminated. […] Partial Hydatidform molar can therefore be avoided through selectively transferring embryos where through PGD triploidy has been excluded. […] After treatment, the woman must use very effective contraception for at least 6 to 12 months so as to avoid pregnancy in order to allow for proper follow-up. […] As indicated, in cases in which a woman seeking IVF has a family history of the condition or has had a prior molar pregnancy herself, PGD can provide an efficient way to all but prevent this condition from occurring.
#15 Molar Pregnancy – London Gynaecology
https://www.london-gynaecology.com/molar-pregnancy/
It is important to avoid further conception for at least six months. […] Best contraception often is barrier contraception (condoms) as hormonal contraception and IUDs are relatively contraindicated. […] In future pregnancies, an early ultrasound scan and beta hCG levels are necessary as the risk is slightly higher (around 1 in 100). […] Beta hCG monitoring needs to continue for six months after delivery and is organised by the specialist centres.
#16 Gestational Trophoblastic Disease, (Molar Pregnancy) (423) | Right Decisions
https://rightdecisions.scot.nhs.uk/ggc-clinical-guidelines/gynaecology/gynaecology-guidelines/guidelines-a-z-all-gynaecology-guidelines/gestational-trophoblastic-disease-molar-pregnancy-423/
This guideline is designed for use within the Early Pregnancy Assessment Service across GGC. The objective is to provide safe management for women with an actual or suspected diagnosis of molar pregnancy. […] Molar pregnancy can be associated with excessive bleeding and a consultant should be present throughout the procedure. […] It is advised that a further pregnancy is deferred until the end of the follow-up period as a new pregnancy may mask evidence of relapse. […] Practical advice to reduce the chances of bleeding should be given.
#17 Molar pregnancy: Symptoms, risks, causes & treatment – Flo
https://flo.health/pregnancy/pregnancy-health/complications/molar-pregnancy
Molar pregnancy occurs in around 1 in 1,000 pregnancies. And while they are rare, molar pregnancies can happen to anyone, and there is nothing you can do to avoid them, so you should try not to blame yourself if it happens to you. […] Its important to remember that molar pregnancies are rare, so anyone trying to get pregnant shouldnt worry too much about this, Dr. Di Renzo says. While some patterns have been identified by research, a molar pregnancy can happen to anyone, and its not caused by anything anyone does wrong. […] The easiest way to do this is to continue urine tests every week or fortnight to measure hormone levels. And when is it safe to consider trying to conceive again? If you wait until everything is back to normal, which can be as soon as two months, you can start trying for another baby, Dr. Di Renzo says. […] For 99 out of 100 women, their next pregnancy will not be a molar pregnancy.
#18 Molar Pregnancy: Types, Symptoms, Treatment
https://www.businessinsider.com/guides/health/reproductive-health/molar-pregnancy
A molar pregnancy occurs in about 1 in every 1,000 pregnancies. But if you’ve already had a molar pregnancy, then your risk of getting another one increases to about 1 in 100. […] Unfortunately, there is no sure way to prevent a molar pregnancy. But if you have had a molar pregnancy in the past, your doctor will continue to monitor your hCG levels and may suggest that you wait a full year before trying to get pregnant again. […] „Even if a woman has a molar pregnancy, this is a very treatable condition, and the chances for a future healthy pregnancy and baby are excellent,” Pollack says.
#19 Prophylactic chemotherapy for hydatidiform mole to prevent gestational trophoblastic neoplasia
https://pmc.ncbi.nlm.nih.gov/articles/PMC6483742/
PChem may reduce the risk of progression to GTN in women with CMs who are at a high risk of malignant transformation; however, the five and eight-day methotrexate and dactinomycin regimens studied in this review were too toxic for routine use, may delay the time to GTN diagnosis and may lead to subsequent drug resistance. […] Currently there is insufficient evidence to support giving anticancer drugs to women with molar pregnancies. However, GTN is almost always cured with modern care and PChem for molar pregnancy would only reduce the risk of needing full-scale chemotherapy, but would not remove that risk. […] The current evidence in favour of PChem is limited by the small numbers and poor methodological quality of available RCTs in this field. Hence there is currently insufficient evidence to support the use of PChem in clinical practice.
#20 Prophylactic Chemotherapy After Molar Pregnancy Is Unsupported
https://www.contemporaryobgyn.net/view/prophylactic-chemotherapy-after-molar-pregnancy-unsupported
The controversial practice of prophylactic chemotherapy to prevent gestational trophoblastic neoplasia (GTN) in women with hydatidiform mole, or molar pregnancy, is not recommended, according to the results of a recent intervention review. […] Overall, prophylactic chemotherapy significantly reduced the risk of GTN in women after a molar pregnancy. However, the researchers consider this evidence to be low quality because of the poor methodology of 2 of the studies analyzed. […] Although the available data show that prophylactic chemotherapy does reduce the risk of the development of GTN, the practice also delays diagnosis and treatment of GTN when it does occur and unnecessarily exposes women in whom GTN never develops to toxic adverse effects.
#21 The role of single-dose prophylactic methotrexate in the prevention of post-molar gestational trophoblastic neoplasia in patients with high-risk molar pregnancy | BMC Cancer | Full Text
https://bmccancer.biomedcentral.com/articles/10.1186/s12885-024-13162-0
Prophylactic chemotherapy (PC) has been suggested to be effective in prevention of post molar gestational trophoblastic neoplasia (PGTN) in patients with high-risk molar pregnancies. […] This study suggests that a single-dose MTX as PC may not be an effective therapeutic option for preventing PGTN in patients with high-risk molar pregnancy. […] Prophylactic chemotherapy was first introduced as an effective method by Lewis et al. in 1966 to prevent the malignant transformation of high-risk HM. […] Nevertheless, the administration of chemotherapy agents raises concerns about potential adverse effects, and routine recommendation of PC for preventing transformation to GTN is not considered appropriate. […] Therefore, we assume that single-dose MTX should be considered even as the treatment of choice in this group.
#22 Prophylactic (preventive) chemotherapy for hydatidiform mole (molar pregnancy) to prevent cancerous growth later | Cochrane
https://www.cochrane.org/CD007289/GYNAECA_prophylactic-preventive-chemotherapy-hydatidiform-mole-molar-pregnancy-prevent-cancerous-growth
Prophylactic (preventive) chemotherapy for hydatidiform mole (molar pregnancy) to prevent cancerous growth later […] However, it has been suggested that routinely giving women anti-cancer drugs (P-Chem) before or after the removal the molar tissue may reduce the risk of the cancerous tissue developing. […] Currently there is insufficient evidence to support giving anti-cancer drugs to women with molar pregnancies. However, GTN is almost always cured with modern care and P-Chem for molar pregnancy would only reduce the risk of needing full-scale chemotherapy, but would not remove that risk. […] P-Chem may reduce the risk of progression to GTN in women with CMs who are at a high risk of malignant transformation; however, current evidence in favour of P-Chem is limited by the poor methodological quality and small size of the included studies. As P-Chem may increase drug resistance, delays treatment of GTN and may expose women toxic side effects, this practice cannot currently be recommended. […] It may be possible to reduce the risk of GTN in women with HM by administering prophylactic chemotherapy (P-Chem). However, P-Chem given before or after evacuation of HM to prevent malignant sequelae remains controversial, as the risks and benefits of this practice are unclear.
#23 Preventing Molar Pregnancy | OnlyMyHealth
https://www.onlymyhealth.com/how-can-one-prevent-molar-pregnancy-12977615312
Molar pregnancy is a rare complication of pregnancy that occurs as a result of some problem at the time of fertilisation. […] Although, there is no particular factor that predisposes a woman to have molar pregnancy, the risk has been seen to be higher in pregnant women who are younger than 20 years or older than 40 years. So, one of the biggest preventative measures that women can take against molar pregnancy is to avoid getting pregnant either before 20 or after 40. […] Another way to prevent molar pregnancy is to seek regular prenatal care by a qualified health care professional so that any problem or complication in the pregnancy can be ruled out or identified as early as possible. […] There is also some evidence that a lack of protein may cause molar pregnancies as can deficiencies in ovulation. So, to prevent the possibility of a molar pregnancy because of these factors, you can upgrade your intake of vitamin A as well as protein that is derived from animal sources.
#24 Preventing Molar Pregnancy | OnlyMyHealth
https://www.onlymyhealth.com/how-can-one-prevent-molar-pregnancy-12977615312
Try to observe safe practices for sexual health so as to avoid contracting viral infections that can lead to molar pregnancy. […] If you have had a molar pregnancy, it is recommended that you avoid getting pregnant for at least a year, because the chances of experiencing another molar pregnancy before the completion of a year are high.
#25 Molar Pregnancy : Types, Causes, Symptoms, Treatment, Diagnosis, Risks | Apollo Hospitals
https://www.apollohospitals.com/diseases-and-conditions/molar-pregnancy-types-causes-symptoms-treatment-diagnosis-risks
If a woman has a previous molar pregnancy, she needs to consult an expert before trying to conceive again. The doctor may recommend waiting for six months to a year before trying to get pregnant. However, the risk of recurrence is low. But it is higher than in patients with no history of molar pregnancy. […] A molar pregnancy can have serious complications including a rare form of cancer and requires early treatment. […] Therefore, it is vital to get treated to prevent further complications. The doctor may recommend one or a combination of the following treatment options. […] After the procedure, the patient may continue to show hCG hormones in the blood. In such cases, the doctor may monitor their hCG levels for close to a year and may need additional treatments to ensure no molar tissues remain. As pregnancy hCG hormones increase during normal pregnancy, a healthcare provider may recommend that the patient waits for 6 to 12 months before conceiving. The doctors may provide a reliable and effective form of birth control.
#26 Gestational Trophoblastic Disease – Partial – Complete Mole – TeachMeObGyn
https://teachmeobgyn.com/pregnancy/early/gestational-trophoblastic-disease/
In the UK, women diagnosed with gestational trophoblastic disease should be registered with a GTD centre for follow-up and monitoring in future pregnancies. […] The specific management is dependent on the exact type of tumour. […] The Royal College of Obstetricians and Gynaecologists recommend suction curettage as the most effective treatment for complete moles and non-viable partial moles. […] In all cases, anti-D prophylaxis is recommended post-evacuation if the mother is Rhesus negative. […] In cases of malignant gestational trophoblastic disease, or partial/complete mole that has not resolved, the woman should be referred to a specialist GTD treatment centre. […] Single or multiple agent chemotherapy +/- surgery is the mainstay of treatment.
#27 Everything You Must Know About Pregnancy
https://www.careinsurance.com/blog/health-insurance-articles/molar-pregnancy-types-symptoms-causes-and-treatment
There is no known way to prevent molar pregnancy. You can reduce the complications leading to molar pregnancy by avoiding another pregnancy for up to a year once you have had a molar pregnancy for the previous time. However, you can consult your health practitioner to know when you can successful pregnancy after molar pregnancy. […] In addition to medical guidance, having the best health insurance can provide financial security for any unexpected complications during pregnancy. A comprehensive plan ensures you receive the necessary care without financial stress.
#28 Molar Pregnancy: Symptoms, Causes, and Treatment
https://risaaivf.com/molar-pregnancy-symptoms-causes-and-treatment/
Molar pregnancies cant be prevented. If you have a history of molar pregnancies, you can reduce the chances of complications. This includes avoiding another pregnancy for up to 1 year after your initial molar. Its important to talk with your doctor about the best time to try again for conceiving.