Dr. Chapa’s OBGYN Clinical Pearls

• AFLP vs Preeclampsia with Severe/HELLP

  Here is a real-world clinical case with a tricky differential: Our team recently readmitted a patient 6 days postpartum/post C-section (which was done for ICP and fetal macrosomia at close to 4500 grams, with A2GDM). She had elevated blood pressures, a frontal headache, some midepigastric pain/RUQ discomfort. Pretty clear picture right: sounds like preeclampsia (PreE) with severe features based on BP elevation and symptoms. So, we started her on mag-sulfate per protocol. Well, her transaminases were in the 400-600s, which was significantly higher than they were at delivery. They then peaked the next day at 900! OK, it still meets criteria for PreE with severe features. But could this also be postpartum Acute fatty Liver of Pregnancy (AFLP)? The clinical picture of these 2 conditions may overlap but there are distinct differences here. AFLP is potentially fatal, so we have to get that diagnosis correct. How can we distinguish AFLP from PreE with severe features or HELLP? Listen in for details.1. https://www.preeclampsia.org/the-news/health-information/acute-fatty-liver-of-pregnancy-can-be-confused-with-preeclampsia-and-hellp-syndrome2. Yemde A Jr, Kawathalkar A, Bhalerao A. Acute Fatty Liver of Pregnancy: A Diagnostic Challenge. Cureus. 2023 Mar 26;15(3):e36708. doi: 10.7759/cureus.36708. PMID: 37113350; PMCID: PMC10129069.3. Maalbi O, Elachhab N, Elkabbaj A, Arfaoui M, Hindi S, Lahbabi S, Oudghiri N, Tachinante R. Management of Acute Fatty Liver of Pregnancy: A Retrospective Study of 12 Cases Compared With Data in the Literature. Cureus. 2025 Jun 11;17(6):e85753. doi: 10.7759/cureus.85753. PMID: 40656400; PMCID: PMC12247011.4. Siwatch S, De A, Kaur B, et al. Safety and Efficacy of Plasmapheresis in Treatment of Acute Fatty Liver of Pregnancy-a Systematic Review and Meta-Analysis.Frontiers in Medicine. 2024;11:1433324. doi:10.3389/fmed.2024.1433324.5. Sarkar M, Brady CW, Fleckenstein J, et al.6. Reproductive Health and Liver Disease: Practice Guidance by the American Association for the Study of Liver Diseases.Hepatology (Baltimore, Md.). 2021;73(1):318-365. doi:10.1002/hep.31559.STRONG COFFEE PROMO: 20% Off Strong Coffee Company https://strongcoffeecompany.com/discount/CHAPANOSPINOBG

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• Does IV Pitocin Increase Abruption Risk?

  I was recently asked to OPINE on the labor management for a patient who was receiving IV Pitocin for augmentation, who experienced a placental abruption. One physician stated that in "his opinion", Pitocin increased the risk of placental abruption intrapartum, a point which the original treating physician refuted. So, I was asked to be the "referee" on the play. IV Pitocin can result in some maternal-fetal complications but is abruption one of them as a stand-alone complication. Was the first reviewer's opinion correct? Listen in for details.1. Ben-Aroya Z, Yochai D, Silberstein T, Friger M, Hallak M, Katz M, Mazor M. Oxytocin use in grand-multiparous patients: safety and complications. J Matern Fetal Med. 2001 Oct;10(5):328-31. doi: 10.1080/714904358. PMID: 11730496.2. Morikawa M, Cho K, Yamada T, et al. Do Uterotonic Drugs Increase Risk of Abruptio Placentae and Eclampsia? Archives of Gynecology and Obstetrics. 2014;289(5):987-91. doi:10.1007/s00404-013-3101-8.3. ACOG: First and Second Stage Labor Management: ACOG Clinical Practice Guideline No. 8. Obstetrics and Gynecology. 2024;143(1):144-162. doi:10.1097/AOG.0000000000005447.4. Pitocin. FDA Drug Label. Food and Drug Administration Updated date: 2024-08-125. Litorp H, Sunny AK, Kc A. Augmentation of Labor With Oxytocin and Its Association With Delivery Outcomes: A Large-Scale Cohort Study in 12 Public Hospitals in Nepal.Acta Obstetricia Et Gynecologica Scandinavica. 2021;100(4):684-693. doi:10.1111/aogs.13919.

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• Does Oral PCN Affect OB GBS Culture Result?

  Current guidelines recommend universal collection of a vaginal-rectal swab for GBS colonization at 36-37 weeks and 6 days for the identification of patients who require intrapartum IV antibiotic coverage to prevent early onset neonatal GBS infection/sepsis. Recently, we had a patient in clinic whose GBS culture at 36 weeks was negative. Good right? Well, the patient was on amoxicillin at the time for pharyngitis. Did that course of oral PCN based therapy affect the GBS culture result? Should we believe that culture or could it be a false negative, demanding rescreen after therapy completion? There is currently a GAP here in the guidance. In this episode we will cover this controversial scenario, look at the data, and provide a real-world implementable approach to this case.1. Kim DD, Page SM, McKenna DS, Kim CM. Neonatal Group B Streptococcus Sepsis After Negative Screen in a Patient Taking Oral Antibiotics. Obstetrics and Gynecology. 2005;105(5 Pt 2):1259-61. doi:10.1097/01.AOG.0000159040.51773.bf.2. ACOG CO Number 797 (Replaces Committee Opinion No. 782, June 2019.); 20203. Mackay G, House MD, Bloch E, Wolfberg AJ. A GBS culture collected shortly after GBS prophylaxis may be inaccurate. J Matern Fetal Neonatal Med. 2012 Jun;25(6):736-8. doi: 10.3109/14767058.2011.596961. Epub 2011 Aug 1. PMID: 21801141.STRONG COFFEE PROMO: 20% Off Strong Coffee Company https://strongcoffeecompany.com/discount/CHAPANOSPINOBG

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• New CPU: Male RX for BV (10/16/25)

  On March 7, 2025, we released an episode summarizing key aspects of a NEJM publication regarding male partner therapy for women with recurrent BV. Although that study had limitations, the results were very surprising. Now, on 10/16/25 (7 months later), the ACOG has a new Clinical Practice Update (CPU) on this very issue. In this episode we will briefly summarize that March 2025 NEJM publication and highlight the TWO updated clinical recommendations from the ACOG regarding male partner therapy for the prevention of BV in women. PLUS, we will briefly discuss why although male partner therapy should be considered, partner EPT is “not recommended” at this time by the ACOG. 1. ACOG CLINICAL PRACTICE UPDATE: Concurrent Sexual Partner Therapy to Prevent Bacterial Vaginosis Recurrence Obstetrics & Gynecology ():10.1097/AOG.0000000000006102, October 16, 2025. | DOI: 10.1097/AOG.00000000000061022. Chapa Clinical Pearls March 2025 Episode: https://open.spotify.com/episode/4sW9tTe9CdYVQsCRBjqQQP3. Vodstrcil LA, Plummer EL, Fairley CK, Hocking JS, Law MG, Petoumenos K, et al. Male-partner treatment to prevent recurrence of bacterial vaginosis. N Engl J Med 2025;392:947–57. doi: 10.1056/NEJMoa2405404STRONG COFFEE PROMO: 20% Off Strong Coffee Company https://strongcoffeecompany.com/discount/CHAPANOSPINOBG

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• Perform PFMT Antepartum?

  Podcast family, as we have said on many previous occasions, we get episode suggestions from either real-world patient encounters, from things that are hot in press, and/or from podcasts family member suggestions. Recently, one of our podcast family members asked me about the utility ofperforming pelvic floor muscle therapy (PFMT) antepartum. Is this evidence-based? Does performing PFMT help with postpartum urinary incontinence? Not all PFMTs are Kegel exercises! In this episode, we will review peripartum urinary incontinence and answer the question, “Is there value in teaching antepartum PFMT?”. We will summarize key concepts from the Oct 2025 Narrative Review on thissubject from the Green Journal (Obstet Gynecol).1.     Siddique, Moiuri MD, MPH; Hickman, Lisa MD;Giugale, Lauren MD. Peripartum Urinary Incontinence and Overactive Bladder.Obstetrics & Gynecology 146(4):p 466-472, October 2025. | DOI:10.1097/AOG.00000000000059932.     Woodley SJ, Lawrenson P, Boyle R, et al. PelvicFloor Muscle Training for Preventing and Treating Urinary and Faecal Incontinence in Antenatal and Postnatal Women. The Cochrane Database of SystematicReviews. 2020;5:CD007471. doi:10.1002/14651858.CD007471.pub4.3.     Pelvic Floor Muscle Training to Prevent andTreat Urinary and Fecal Incontinence in Antenatal and Postnatal Patients. AmericanAcademy of Family Physicians (2021). Practice Guideline STRONG COFFEE PROMO: 20% Off Strong CoffeeCompany https://strongcoffeecompany.com/discount/CHAPANOSPINOBG

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