Abstract
Biz yapısal olarak normal kalp ve 21. gebelik haftasında (w.g.) fetal kalp hızı 74 bpm olan bir fetüste geçici ikinci derece 2:1 iletim AV bloğu olgusunu sunuyoruz. Annenin tıbbi öyküsünde özellik yoktu ve otoantikor taraması negatifti. Sonraki takip, AV bloğunun 25 w.g’de tam çözünürlüğünü belgeledi. Fetal kalp hızı ve AV iletimi doğuma kadar normal kaldı. Doğum sonrası EKG normal sinüs ritmini ve QTc aralıklarının süresini gösterdi. Takip sonrasında bu gözlemler normal kaldı. Nadir de olsa ikinci derece AV blok, fetal bradikardinin altında yatan nedenlerden biri olabilir.
Keywords
References
- Berg C, Geipel A, Kohl T, et al. Atrioventricular block detected in fetal life: associated anomalies and potential prognostic markers. Ultrasound Obstet Gynecol. 2005;26(1):4-15. https://doi.org/10.1002/uog.1918
- Pruetz JD, Miller JC, Loeb GE, Silka MJ, Bar-Cohen Y, Chmait RH. Prenatal diagnosis and management of congenital complete heart block. Birth Defects Res. 2019;111(8):380-8. https://doi.org/10.1002/bdr2.1459
- Hunter LE, Simpson JM. Atrioventricular block during fetal life. J Saudi Heart Assoc. 2015;27(3):164-78. https://doi.org/10.1016/j.jsha.2014.07.001
- Lopes LM, Tavares GMP, Damiano AP, et al. Perinatal outcome of fetal atrioventricular block: one-hundred-sixteen cases from a single institution. Circulation. 2008;118(12):1268-75. https://doi.org/10.1161/CIRCULATIONAHA.107.735118
- Breur JM, Oudijk MA, Stoutenbeek P, Visser GH, Meijboom EJ. Transient non-autoimmune fetal heart block. Fetal Diagn Ther. 2005;20(2):81-5. https://doi.org/10.1159/000082427
- Kikano SD, Killen SAS. Transient fetal atrioventricular block: A series of four cases and approach to management. J Cardiovasc Electrophysiol. 2022;33(10):2228-32. https://doi.org/10.1111/jce.15642
Abstract
We present a case of a transient second-degree 2:1 conduction atrioventricular (AV) block in a fetus with a structurally normal heart and fetal heart rate of 74 bpm at 21 weeks of gestation (WG). The maternal medical history was unremarkable and the autoantibody screening was negative. The subsequent follow-up documented complete resolution of the AV block at 25 WG. The fetal heart rate and AV conduction remained normal until delivery. The postnatal electrocardiogram (ECG) demonstrated normal sinus rhythm and duration of corrected QT (QTc)-intervals. These observations remained normal upon follow-up. Although uncommon, second-degree AV block can be one of the underlying causes of fetal bradycardia.
References
- Berg C, Geipel A, Kohl T, et al. Atrioventricular block detected in fetal life: associated anomalies and potential prognostic markers. Ultrasound Obstet Gynecol. 2005;26(1):4-15. https://doi.org/10.1002/uog.1918
- Pruetz JD, Miller JC, Loeb GE, Silka MJ, Bar-Cohen Y, Chmait RH. Prenatal diagnosis and management of congenital complete heart block. Birth Defects Res. 2019;111(8):380-8. https://doi.org/10.1002/bdr2.1459
- Hunter LE, Simpson JM. Atrioventricular block during fetal life. J Saudi Heart Assoc. 2015;27(3):164-78. https://doi.org/10.1016/j.jsha.2014.07.001
- Lopes LM, Tavares GMP, Damiano AP, et al. Perinatal outcome of fetal atrioventricular block: one-hundred-sixteen cases from a single institution. Circulation. 2008;118(12):1268-75. https://doi.org/10.1161/CIRCULATIONAHA.107.735118
- Breur JM, Oudijk MA, Stoutenbeek P, Visser GH, Meijboom EJ. Transient non-autoimmune fetal heart block. Fetal Diagn Ther. 2005;20(2):81-5. https://doi.org/10.1159/000082427
- Kikano SD, Killen SAS. Transient fetal atrioventricular block: A series of four cases and approach to management. J Cardiovasc Electrophysiol. 2022;33(10):2228-32. https://doi.org/10.1111/jce.15642
Details
| Primary Language | English |
|---|---|
| Subjects | Obstetrics and Gynaecology |
| Journal Section | Case Report |
| Authors | |
| Publication Date | September 26, 2024 |
| Submission Date | July 16, 2024 |
| Acceptance Date | August 18, 2024 |
| Published in Issue | Year 2024 |