Dr. Chapa’s OBGYN Clinical Pearls

Episoade

• Circumventing Previa at Hysterotomy Creation (Surgeon’s Corner) 03.07.2026 9min

  Placenta previa has an incidence of about 0.4% to 0.5% (or 1 in 200 to 1 in 250 deliveries). Anterior placenta previa poses a unique obstacle in fetal extraction at CS: Is it best to transect (enter) the placenta or to cause a marginal abruption at the placental edge for fetal extraction? In this episode we will review an upcoming “Surgeon’s Corner” in the AJOG (July 2026) which provides some tips and tricks for this very issue.1. Verspyck E, Douysset X, Roman H, Marret S, Marpeau L. Transecting versus avoiding incision of the anterior placenta previa during cesarean delivery. Int J Gynaecol Obstet. 2015 Jan;128(1):44-7. doi: 10.1016/j.ijgo.2014.07.020. Epub 2014 Aug 27. PMID: 25218131.2. Nieto-Calvache AJ, Palacios-Jaraquemada JM, Basanta N, Suarez-Revelo MA, Benavides-Calvache JP, Meade P, Lopez-Franco MJ, Burgos-Luna JM. How to avoid placental transection during low transverse cesarean delivery for anterior placenta previa. Am J Obstet Gynecol. 2026 Jul;235(1):225-228. doi: 10.1016/j.ajog.2026.02.032. Epub 2026 Feb 25. PMID: 41759607.
• 40 to 40.6 EGA as Best Delivery timing? 30.06.2026 23min

  In 2018, the ARIVE trial was published in the NEJM revealingthat induction of labor at 39 weeks reduced cesarean deliveries and gestational hypertension/preeclampsia in low-risk nulliparous women who had labor induced,compared to expectant management. Then, in 2025, and partly in response to L&D units across the country becoming saturated with low- risk, nulliparous patients awaiting their induction of labors at 39 weeks and 0 days, the ACOGreleased its clinical practice update in Jan 2025 stating, “The optimal timing of delivery for full-term pregnancies (39 0/7 to 40 6/7 weeks of gestation has not been determined”. Now there is new data, released as an article in press(June 26, 2026), out of the AJOG that raises some interesting questions about potential benefits of induction of labor LATER in the “full term” interval (40- 40 and 6 days) compared to earlier full term (39 weeks to 39 weeks 6 days). Thesefindings are “hypothesis- generating”.  Listen in for details. Strong Coffee Company - Protein Coffee PLUS MORE; Get 20%OFF | Promo Code: CHAPANOSPINOBG https://promocode.to/strong-coffee-company/chapanospinobg-hbv​     Grobman WA, Rice MM, Reddy UM, Tita ATN, et al;Eunice Kennedy Shriver National Institute of Child Health and Human DevelopmentMaternal–Fetal Medicine Units Network. Labor Induction versus ExpectantManagement in Low-Risk Nulliparous Women. N Engl J Med. 2018 Aug9;379(6):513-523. ​     Damri NT, Sheiner E, Wainstock T, GestationalAge at Full-Term Delivery and Long-Term Offspring Morbidity in Low-RiskPregnancies: A Population-Based Cohort Study, American Journal of Obstetricsand Gynecology (2026), ​     Management of Full-Term Nulliparous IndividualsWithout a Medical Indication for Delivery: ACOG Clinical Practice Update.Obstet Gynecol. 2025 Jan 1;145(1):e45-e50. doi: 10.1097/AOG.0000000000005783.Epub 2024 Nov 7. PMID: 39513607.
• “New” Data: CS Skin Incision To Delivery Interval (AJOG-MFM) 27.06.2026 20min

  If you practice obstetrics, you already know that our entire world is ruled by a stopwatch. Think about it: we are obsessed with time. We wait exactly 60 or 120 minutes for a gestational diabetes challenge. We stare at a monitor for a strict 30 minutes timing a biophysical profile. The entire pregnancy is dictated by an Estimated Date of Delivery that has us counting down the literal days. But what happens when we step into the OR? Once that scalpel hits the skin for a cesarean section, does the clock matter just as much? There are two separate intervals which have generated data: the skin incision to delivery interval, and the uterine incision to delivery interval. In today's episode, we are CUTTING INTO the data. First, we are summarizing a hot-off-the-press study from AJOG-MFM (Pink) that takes a hard look at the macro clock—the skin incision-to-delivery interval. Then, we are going to contrast those findings with the recent Bart 2026 study published in the AJOG (Grey) Journal, which tracked over 5,800 routine deliveries to see exactly what happens to a baby's pH and clinical outcome when that uterine extraction takes longer than 120 seconds. These two are somewhat at odds. Listen in for details. Strong Coffee Company - Protein Coffee PLUS MORE; Get 20% OFF | Promo Code: CHAPANOSPINOBG https://promocode.to/strong-coffee-company/chapanospinobg-hbv​ Zayat N, Bertozzi-Villa C, Cavallino A, et al. Skin incision-to-delivery interval and neonatal outcomes: A retrospective cohort study. Am J Obstet Gynecol MFM2026;00:101980.​ Bart Y, Sibai BM, Fishel Bartal M, Mazaki-Tovi S, Yoeli R. Uterine incision-to-delivery interval and neonatal outcomes among nonurgent, term, cesarean deliveries. Am J Obstet Gynecol. 2026 May;234(5):1459-1469. doi: 10.1016/j.ajog.2025.12.059. Epub 2025 Dec 30. PMID: 41478544.
• More Steroid Stuff (July 2026) 24.06.2026 15min

  Think about the last time you had to time something perfectly. Maybe it taking that perfect swing at the baseball, or catching a flight after a commute, or making a high-stakes decision. In the world of high-risk pregnancy, clinicians play a constant game of high-stakes timing with a usual medication called antenatal corticosteroids. Given to moms at risk of giving birth early, these steroids are a gamechanger for a preterm neonate. But there’s a catch. If you give them too early, the benefits fade. If you give them too late and she delivers very quickly, they don't have time to work. A brand-new study published in the journal Obstetrics & Gynecology by Mark Clapp et al reveals just how incredibly difficult this balancing act is. This data shows that nearly 26% of pregnant individuals who received these steroids actually went on to deliver completely full-term, exposing babies to medications they might not have needed. So how do we as clinicians solve this OB Goldilocks problem where the stakes are a newborn baby's health? On today's episode, we break down the data behind 'maximizing benefit while avoiding overuse' and what it means for real world practice.Strong Coffee Company - Protein Coffee PLUS MORE; Get 20% OFF | Promo Code: CHAPANOSPINOBG https://promocode.to/strong-coffee-company/chapanospinobg-hbv1. Clapp, Mark A. MD, MPH; Li, Siguo MS; Melamed, Alexander MD, MPH; Reiff, Emily MD; Gyamfi-Bannerman, Cynthia MD, MS; Kaimal, Anjali J. MD, MAS. Maximizing Benefit From Antenatal Steroid Use While Avoiding Overuse. Obstetrics & Gynecology 148(1):p e33-e42, July 20262. FIGO good practice recommendations on the use of prenatal corticosteroids to improve outcomes and minimize harm in babies born preterm. Int J Gynaecol Obstet. 2021 Oct;155(1):26-303. Society for Maternal-Fetal Medicine Special Statement: Quality metrics for optimal timing of antenatal corticosteroid administration; 2022
• MOPP & PP BP Control 21.06.2026 18min

  More than 60% of maternal deaths occur during the postpartum period, and hypertensive disorders of pregnancy are a major, preventable driver of that statistic. For too long, the transition from labor and delivery to home has been a vulnerable blind spot—leading to high rates of avoidablereadmissions. But the landscape has shifting. In this episode, we are diving deep into why OB providers must optimize blood pressure control before and after postpartum discharge. We’ll be breaking down the landmark 2025 MOPP study, which shook up our traditional targets by examining tight versus standard blood pressure control, alongside the recently released May 2026 ACC Expert ConsensusDecision Pathway.What is the actual "goal BP" for a safe postpartum discharge? When should we initiate outpatient tight control, and how do we prevent these patients from bouncing back to the ED? Grab your coffee and pull up a chair. Let’s look at the evidence.20% DISCOUNT: https://strongcoffeecompany.com/discount/CHAPANOSPINOBG​          Gibson K, Hameed A. Society for Maternal-Fetal Medicine Special Statement: Checklist forpostpartum discharge of women with hypertensive disorders. AJOG, 2020. ​          Farahi N, Oluyadi F, Dotson AB. Hypertensive Disorders of Pregnancy. American Family Physician. 2024. ​          Lindley KJ, Bello NA, Berlacher KL, et al. Optimization of Postpartum Care for Patients With and at Risk for Premature and Long-Term Cardiovascular Disease: 2026 ACC Expert Consensus. Journal of the American College of Cardiology. May 2026. ​          ACOG Task Force on Hypertension in Pregnancy, 2013​          Rosenfeld EB, Sagaram D, Lee R, et al. Management of Postpartum Preeclampsia and Hypertensive Disorders (MOPP): Postpartum Tight vs Standard Blood PressureControl. JACC. Advances. 2025.
• Peripartum Cardiomyopathy (PPCM): When the Left Heart Falters 18.06.2026 29min

  Welcome back to the show, everybody! Today, we are diving deep into the intersection of maternal-fetal medicine and cardiology. We’re tackling a condition that keeps every OB/GYN, MFM, and cardiologist up at night: Peripartum Cardiomyopathy, or PPCM. And to keep our clinical gears turning, we are framing this discussion squarely through the lens of Society for Maternal-Fetal Medicine (SMFM) Consult Series #73, which focuses on right and left heart failure in pregnancy, alongside the foundational data from ACOG Practice Bulletin #212. PPCM presents fundamentally as acute left heart failure with reduced ejection fraction. Think of the left ventricle as the primary engine pump of the systemic circulation. When it stalls, everything upstream gets backed up. While this was traditionally called IDIOPATHIC, newer data says otherwise. We are going to cover presentation, eval, care and prognosis. So, get your palpitations in check- here we go. 16% OFF TONA ACTIVE WEAR PROMO: https://tonaactive.com/discount/CHAPANOSPINOBG1. SMFM CS 73; 20252. ACOG PB 212; 20193. Arany Z. Peripartum Cardiomyopathy. The NEJM. 2024. 4. Sliwa K, Hilfiker-Kleiner D, Damasceno A, Al Farhan H, Goland S, Johnson MR, Bauersachs J. Peripartum cardiomyopathy. Lancet. 2025 Nov 22;406(10518):2483-2493. doi: 10.1016/S0140-6736(25)01451-5. Epub 2025 Oct 28. PMID: 41173010.
• The “20-minute” Rule for VAVD: 2026 Data 15.06.2026 23min

  Podcast Family, in this episode we will focus on the “20-minute rule” for vacuum assisted vaginal delivery. This is an important aspect of neonatal safety and is a vital part of procedure documentation. Documentation for vacuum assisted vaginal delivery should include station at application, number of tractions, number of pop-offs and the total traction time and the vacuum trackable time (time from first application to delivery). This has historical roots as well as new data to validate it (March 2026). Listen in for details. 1. ACOG PB 219; 20202. Preuss E, Porto A, Sheiman V, Bitton M, Tovbin J, Kedem HI, Barzilay E. When to stop? A single center experience on vacuum-assisted deliveries. Eur J Obstet Gynecol Reprod Biol. 2026 Mar 25;320:114983. 3. Teng FY, Sayre JW. Vacuum Extraction: Does Duration Predict Scalp Injury?.Obstetrics and Gynecology. 1997. 4. Tsakiridis I, Giouleka S, Mamopoulos A, et al.Operative Vaginal Delivery: A Review of Four National Guidelines. Journal of Perinatal Medicine. 2020. 16% OFF TONA ACTIVE WEAR PROMO: https://tonaactive.com/discount/CHAPANOSPINOBG
• 2026 Lp(a), AHA, and OBG: What Now? 12.06.2026 26min

  The March 2026 ACC/AHA Guideline on the Management of Dyslipidemia made a major pivot regarding Lipoprotein(a) by establishing a formal recommendation for universal screening in adults. This 2026 guideline, published in the Journal of the American College of Cardiology, issued a Class 1 recommendation stating that every adult should have their Lp(a) measured at least once in their lifetime. Because Lp(a) levels are genetically determined and remain highly stable throughout a person's life, a single lifetime check is sufficient for the vast majority of the population to establish their baseline risk. Well, that’s great for Family medicine or internal medicine, but how does that affect us in women’s health? Well, it’s complicated: lipoprotein(a) has been associated with an increased risk of VTE and has also been associated, in some studies, with FGR, preeclampsia, and preterm birth! So, can these patients receive oral contraceptives? What about Perioperative and postop care? Do these patients require anticoagulation? What about pregnancy- is LDA recommended here? And lastly, what about TXA use in patients with HMB? This podcast topic comes from one of our podcast family members who is an OBGYN military personnel caring for our wonderful troops overseas. Listen in for details!16% OFF TONA ACTIVE WEAR PROMO: https://tonaactive.com/discount/CHAPANOSPINOBG1. Ezzat, D., Lopez, D. M., Claggett, B. L., Li, L., Mohammadnia, N., Schuermans, A., Hemeryck, J., Chang, A., Murillo, S., O'Donoghue, M. L., Bikdeli, B., Yu, Z., Natarajan, P., Patel, A. P., Pabon, M. A., & Honigberg, M. C. (2026). Lipoprotein(a) and incident venous thromboembolism in pre- and postmenopausal women, and in men. European Heart Journal, ehag252. https://doi.org/10.1093/eurheartj/ehag2522.ACC/AHA/AACVPR/ABC/ACPM/ADA/AGS/APhA/ASPC/NLA/PCNA Dyslipidemia Writing Committee. (2026). 2026 ACC/AHA/AACVPR/ABC/ACPM/ADA/AGS/APhA/ASPC/NLA/PCNA Guideline on the Management of Dyslipidemia. Circulation, 153, e1155–e1300. https://doi.org/10.1161/CIR.00000000000014233. CDC MEC 4. Prevention of Venous Thromboembolism in Gynecologic Surgery: ACOG Practice Bulletin, Number 232. Obstetrics and Gynecology. 2021. Committee on Practice Bulletins—Gynecology5. Sofi F, Marcucci R, Abbate R, Gensini GF, Prisco D.Lipoprotein(a) as a Risk Factor for Venous Thromboembolism: A Systematic Review and Meta-Analysis of the Literature.Seminars in Thrombosis and Hemostasis. 2017. Dentali F, Gessi V, Marcucci R, et al. Lipoprotein (A) and Venous Thromboembolism in Adults: The American Journal of Medicine. 2007.
• CS: UT in or UT out? New July 2026 Data 10.06.2026 15min

  Hey everyone, thanks for tuning in. If you’ve spent any time in the OR during a cesarean delivery, you know that the choice between uterine exteriorization and in situ repair usually comes down to how you were trained or personal surgeon preference. It’s a debate as old as modern obstetrics. But a major piece of clarity is coming down the pipeline. This episode, we are getting a sneak peek at a brand-new systematic review and meta-analysis dropping this July 2026 in the European Journal of OBGYN. We’re asking the big question: is this the study that finally settles the debate once and for all? Grab your coffee, stick around, and let’s find out.16% OFF TONA ACTIVE WEAR PROMO: https://tonaactive.com/discount/CHAPANOSPINOBG​ Coutinho, I. C., Ramos de Amorim, M. M., Katz, L., & Bandeira de Ferraz, Á. A. (2008). Uterine exteriorization compared with in situ repair at cesarean delivery: A randomized controlled trial. Obstetrics & Gynecology, 111(3), 639–647. https://doi.org/10.1097/aog.0b013e31816521e2 . (One of the most heavily cited clinical trials on the subject. It established that women in the exteriorized group experienced a 41% greater risk of moderate-to-severe pain at 6 hours postoperatively compared to the non-exteriorized cohort).​ Tan, H. S., Taylor, R. C., Sharawi, N., Sultana, R., Barton, K. D., & Habib, A. S. (2021). Uterine exteriorization versus in situ repair in Cesarean delivery: A systematic review and meta-analysis. Canadian Journal of Anaesthesia, 69(2), 216–233. https://doi.org/10.1007/s12630-021-02142-8​ Fonseca Queiroz L, Lemos M, Pereira da Silva D . Uterine exteriorization versus in-situ uterine repair during cesarean delivery: a systematic review and meta-analysis of randomized controlled trial. European Journal of Obstetrics and Gynecology and Reproductive Biology, 2026; 323
• SHOCKING: ACSs INCREASE Risk in Twins? (Listen in) 08.06.2026 16min

  In the ACOG PB 231, Multifetal Gestations Twin Triplet and Higher-Order Multifetal Pregnancies, it states, “based on the improved outcomes reported in singleton gestations, the National Institutes of Health recommends that, unless a contraindication exists, a course of antenatal corticosteroids should be administered to all patients who are at risk of delivery within 7 days and who are between 24 weeks and 34 weeks of gestation, irrespective of the fetal number”. But a BRAND NEW meta-analysis is saying the exact opposite- with a catch. Listen in for details.1. ACOG PB 2312. Felippe, Carolina Alves MS; Ruiz, Sinrraim dos Santos Chaves MD; de Souza, Rebeca Ferreira MS; de Lima, Aliny Silva MS; dos Santos, Priscila Luiza MS; Fonseca, Pandora Eloa Oliveira MS; de Almeida Silva, Ingryd MS; Montes-de-Oca-Saucedo, Carlos Roberto MD; Santana, Ana Cecília Oliveira MS; Veta Darkovski, Jasmina MD; Matlaw, Hadas Rachel MD; Fonseca Queiroz, Laura MD. Antenatal Corticosteroid Use in Twin Pregnancies: A Systematic Review and Meta-analysis. Obstetrics & Gynecology ():10.1097/AOG.0000000000006344, June 4, 2026. | DOI: 10.1097/AOG.000000000000634416% OFF TONA ACTIVE WEAR PROMO: https://tonaactive.com/discount/CHAPANOSPINOBG
• 5mm v 1-cm Fascial Closure at CS: MINI EPISODE 06.06.2026 3min

  Historically we were taught as surgeons that 1-centimeter bites that between suture throws on a Pfannenstiel (low transverse) fascial closure was enough to prevent hernia formation and optimize facial healing. But is this still evidence based? We can extrapolate data from a May 2026 systematicreview/meta-anlysis as well as a separate study from the Dutch published in 2021. Both of these studies were in the journal Hernia. The evidence does favor one technique over the other! Listen in for details.1.     Golling M, Baumann P, Kuger F, Fortelny RH.Impact of the SUture BIte TEchnique on clinical outcomes after midlinelaparotomy closure: SUBITE-a systematic review and meta-analysis. Hernia. 2026May 19;30(1):221. doi: 10.1007/s10029-026-03700-z. PMID: 42154339; PMCID:PMC13186860.2.     Paulsen CB, Zetner D, Rosenberg J. Variation inabdominal wall closure techniques in lower transverse incisions: a nationwidesurvey across specialties. Hernia. 2021 Apr;25(2):345-352. doi:10.1007/s10029-020-02280-w. Epub 2020 Aug 8. PMID: 32770366.
• NIPT CONFIRM Test SPECIAL GUEST: Blurring the Line between Screening & Confirmation of Fetal Aneuploidy 05.06.2026 23min

  Today, we are talking about a true paradigm shift in prenatal genetics. For decades, we’ve relied on cell-free DNA for screening, but when it came to definitive confirmation of fetal aneuploidy, we’ve had to counsel our patients through the anxiety and physical risks of invasive procedures like amniocentesis and CVS. But what if the line between screening and confirmation just blurred? In this episode, we are diving into an avant-garde, first-of-its-kind maternal blood test that is now actively in clinical use and may prove to rival traditional invasive testing for fetal aneuploidy confirmation: the Unity CONFIRM test. To break down the cutting-edge science, the clinical validity, and exactly what this means for your daily practice, I am thrilled to welcome Jen Hoskovec, the Vice President of Medical Affairs for BillionToOne. You might have recently seen her insights featured alongside Dr. Haywood Brown in Contemporary OB/GYN, and today, she’s here with us. We’re going to discuss the availability of this test, the technology that makes it possible, and what the next concrete steps are for integrating this into modern obstetrical care. Grab your coffee. Let’s get into the science.1. https://www.contemporaryobgyn.net/view/haywood-brown-md-jennifer-hoskovec-explain-new-non-invasive-confirmatory-test2. Screening for Fetal Chromosomal Abnormalities PA; January 2026
• OB, ED, and STDs: Gaps Noted! 03.06.2026 14min

  Back in June 2024, we highlighted surprising data from JAMA Network Open regarding adolescent care in the ED. Because many adolescents use the ED as their primary care provider, it’s a good opportunity for them to have contraception addressed regardless of why they presented. But that’s not what was happening. That publication from two years ago showed significant gaps in addressing contraception in the ED to pregnancy vulnerable young women, mainly teens. We covered those results back then and said that that would be a wonderful QI project for any resident or medical students to work with their hospital ED to improve that. Well, now a similar publication, looking at a different target- STI empiric treatment among pregnant women in the ED, has been published with that same vibe. Yep, there are BIG discrepancies in what pregnant women are given- or in this case, NOT GIVEN, in the ED compared to their nonpregnant peers. This was published in mid-April 2026. Two big questions remain unanswered in this data. Listen in for details. 1. Gottlieb M, Moyer E, Slocum GW, et al. Sexually Transmitted Infection Treatment Rates Among Pregnant vs Nonpregnant Patients in Emergency Departments. JAMA Network Open. 2026. 2. Canter H, Reed J, Palmer C, et al. Contraception Use and Pregnancy Risk Among Adolescents in Pediatric Emergency Departments. JAMA Netw Open. 2024;7(6):e2418213. doi:10.1001/jamanetworkopen.2024.18213
• When to Best Deliver With a Uterine "Window" 02.06.2026 2min

  It's a QUICKY: IMPROMPTU episode in clinic today..
• Treat Non-Severe PreE with BP Meds? 31.05.2026 15min

  Welcome back, everyone. Today we're diving into one of the most hotly debated topics in obstetrics- should we be treating preeclampsia without severe features with antihypertensive medications during expectant management? Now, if you've been following the literature- and our show, you know that the landmark CHAP trial changed the game for chronic hypertension in pregnancy. It showed us that targeting a blood pressure below 140 over 90 reduces serious maternal complications, without harming the baby. That was a big deal. But here's the thing, CHAP studied chronic hypertension. Then there was the CHIP trial- that also found that tight control of gestational hypertension and nonproteinuric chronic hypertension was also beneficial. These did not address preeclampsia without severe features, and yet, the ripple effects of that trial have sparked a global conversation about whether we should be extending those same treatment principles to women with preeclampsia who don't yet have severe features. And this is where it gets really interesting, because the guidelines don't agree. In the United States, ACOG and the Society for Maternal-Fetal Medicine still say: hold off on antihypertensives unless blood pressures hit the severe range at 160/110. But step outside the US, and you'll find the World Health Organization, the International Society for the Study of Hypertension in Pregnancy, FIGO, NICE, and Hypertension Canada all recommending treatment at 140 over 90, regardless of whether the diagnosis is chronic hypertension, gestational hypertension, or preeclampsia. So who's right? And more importantly what does this mean for the patient sitting in front of you right now, at 34 weeks, with a blood pressure of 150 over 95, some proteinuria, but no severe features? Today, we're going to break this down. We'll review the controversy, walk through the divergent guidelines, and most importantly talk about the real, practical implications that favor treating these patients during expectant management. Because when you're watching someone with preeclampsia, waiting for the right time to deliver, there's a strong argument that controlling their blood pressure isn't just reasonable…may be protective. So grab your coffee, settle in, and let's get into it.1. Society for Maternal-Fetal Medicine Statement: Antihypertensive Therapy For mild chronic Hypertension in Pregnancy-The Chronic Hypertension And Pregnancy Trial. American Journal of Obstetrics and Gynecology. 2022. Society for Maternal-Fetal Medicine; Publications Committee. 2. Preeclampsia. The New England Journal of Medicine. 2022. Magee LA, Nicolaides KH, von Dadelszen P.3. Antihypertensive Drug Therapy for Mild to Moderate Hypertension During Pregnancy.The Cochrane Database of Systematic Reviews. 2018. Abalos E, Duley L, Steyn DW, C.4. Prevention and Treatment of Maternal Stroke in Pregnancy and Postpartum: A Scientific Statement From the American Heart Association. Stroke. 2026. Miller EC, Bello NA, Chen PR, et al.5.Hypertension in Pregnancy: Diagnosis, Blood Pressure Goals, and Pharmacotherapy: A Scientific Statement From the American Heart Association. Hypertension. 2022. Garovic VD, Dechend R, Easterling T, et al.
• The WILDCARD: LUS Window on Prenatal Sono, TOLAC? 28.05.2026 17min

  The American College of Obstetricians and Gynecologists (ACOG) does not recommend routine ultrasound measurement of the lower uterine segment (LUS) thickness as part of the evaluation for trial of labor after cesarean delivery (TOLAC). ACOG Practice Bulletin No. 205 (2019) on Vaginal Birth After Cesarean Delivery does not include LUS measurement among its recommendations for TOLAC candidacy assessment. The guideline focuses on clinical factors such as type of prior uterine incision, number of prior cesarean deliveries, and other obstetric history to determine TOLAC candidacy, and emphasizes that most women with one previous low-transverse cesarean delivery should be counseled about and offered TOLAC. But what if you find a likely uterine window at the LUS? Does that mandate a repeat C-section? This topic comes from Serena, one of our podcast family members. Listen in for details. 1. Dr. Chapa’s Clinical Pearls, Dec 31., 2023: LUST FOR TOLAC; and follow up episode Jan 15, 20242. ACOG Practice Bulletin No. 205: Vaginal Birth After Cesarean Delivery. Committee on Practice Bulletins—Obstetrics Obstetrics and Gynecology. 2019;133(2):e110-e127. doi:10.1097/AOG.0000000000003078.3. Rozenberg P, Sénat MV, Deruelle P, et al. Evaluation of the Usefulness of Ultrasound Measurement of the Lower Uterine Segment Before Delivery of Women With a Prior Cesarean Delivery: A Randomized Trial. American Journal of Obstetrics and Gynecology. 2022. 4. Swift BE, Shah PS, Farine D. Sonographic Lower Uterine Segment Thickness After Prior Cesarean Section to Predict Uterine Rupture: A Systematic Review and Meta-Analysis. Acta Obstetricia Et Gynecologica Scandinavica. 2019. 5. McLeish SF, Murchison AB, Smith DM, et al. Predicting Uterine Rupture Risk Using Lower Uterine Segment Measurement During Pregnancy With Cesarean History: How Reliable Is It? A Review. Obstetrical & Gynecological Survey. 2023. 6. Jastrow N, Demers S, Chaillet N, et al. Lower Uterine Segment Thickness to Prevent Uterine Rupture and Adverse Perinatal Outcomes: A Multicenter Prospective study.7. American Journal of Obstetrics and Gynecology. 2016. 8. Guerby P, Bujold E, Chaillet N. Impact of Third-Trimester Measurement of Low Uterine Segment Thickness and Estimated Fetal Weight on Perinatal Morbidity in Women With Prior Cesarean Delivery. Journal of Obstetrics and Gynaecology Canada. JOGC. 2022.
• Home Self-Check Urine Protein for gHTN? 26.05.2026 17min

  Should patients check their own urine protein at home when they have a gestational hypertension DX? After all, home-based BP monitoring is an established part of HDP care. Is there data on home urine protein dipstick tests in gestational hypertension? What do professional guidelines say? And what are the pros and cons of home self-monitoring of urine protein? Thank you, SJ, for the podcast topic suggestion. FListen in for details.1. ACOG PB 2222. Jayawardena L, Mcnamara E. Diagnosis and Management of Pregnancies Complicated by Haemolysis, Elevated Liver Enzymes and Low Platelets Syndrome in the Tertiary Setting.Internal Medicine Journal. 2020. 3. Tucker KL, et al. (2022). "Effect of self-monitoring of blood pressure on diagnosis of hypertension during higher-risk pregnancy: the BUMP 1 randomized clinical trial. JAMA4. Chappell LC, et al. (2022). "Effect of self-monitoring of blood pressure on blood pressure control in pregnant individuals with chronic or gestational hypertension: The BUMP 2 Randomized Clinical Trial. JAMA5. UDIP (Urinary Dipstick In Pregnancy) trial. 2022 May 12;129(13):2142–2148. doi: 10.1111/1471-0528.17180
• Is OB HPBM “Evidence-Based”? BUMP1&2 vs SMFM Special Statement 24.05.2026 24min

  The vast majority of the time, “community standard of care” reflects evidence-based recommendations. This means that both the predominance of clinical data and what is clinically practice align one with another period but at times, clinical standard practice doesn't always align with what the data shows. How is this possible? This is exactly the case for home blood pressure monitoring in pregnancy (HBPM). This episode idea comes from an OB PGY-3, soon PGY-4, who asked his attending this brilliant question: “If the BUMP1 and BUMP2 clinical trials did not show a benefit with HBPM, why are we still doing it?” That is a complicated question that has a solid answer! Unsatisfied with his response, he asked for our opinion. Listen in for details.1. Tucker KL, et al. (2022). "Effect of self-monitoring of blood pressure on diagnosis of hypertension during higher-risk pregnancy: the BUMP 1 randomized clinical trial. JAMA2. Chappell LC, et al. (2022). "Effect of self-monitoring of blood pressure on blood pressure control in pregnant individuals with chronic or gestational hypertension: The BUMP 2 Randomized Clinical Trial. JAMA3. SMFM Special Statement (2023): Society for Maternal-Fetal Medicine Special Statement: Telemedicine in obstetrics—quality and safety considerations; AJOG
• Patient Self-Titration of Insulin for GDM? 21.05.2026 26min

  Outside of pregnancy, guidelines emphasize diabetes self-management education and support to facilitate informed decision making, self-care behaviors, problem solving, and active collaboration with health care professionals. This includes, in those with good health literacy, the concept of patient-led self-titration of basal insulin results which has data that it improves glycemic management compared with clinician-led titration for type 2 diabetes among nonpregnant adults. But what about for GDM? Can patient’s self manage their BASAL insulin? In this episode, we will review a new RCT published in April 2026 in the Green Journal on this very subject. As novel as this is, it is not the first to report on this as it was also published (retrospective study in the UK) in 2022. This is a novel approach to insulin in GDM but there are some questions that remain. Listen in for details.1. Boonpattharatthiti K, Wechkunanukul K, Mayang N, et al . Comparison of Insulin Titration Strategies for Glycemic Control in Type 2 Diabetes: A Systematic Review and Network Meta-Analysis.Diabetes Care. 2025. 2. Valent, Amy M. DO, MCR; Barbour, Linda A. MD, MSPH. Insulin Management for Gestational and Type 2 Diabetes in Pregnancy. Obstetrics & Gynecology 144(5):p 633-647, November 2024. | DOI: 10.1097/AOG.00000000000056403. Wang, Xiao-Yu MD; Gabbe, Steven MD; Landon, Mark B. MD; Venkatesh, Kartik K. MD, PhD et al. Patient-Led Insulin Titration for Glycemic Management With Gestational Diabetes Mellitus: A Randomized Controlled Trial. Obstetrics & Gynecology 147(4):p 501-509, April 2026. 4. McGovern AP, Hirwa KD, Wong AK, et al. Patient-led rapid titration of basal insulin in gestational diabetes is associated with improved glycaemic control and lower birthweight. Diabet Med. 2022;39:e14926. doi: 10.1111/dme.14926
• VOMIT Trial: Mirtazapine vs Ondansetron for HG 18.05.2026 22min

  Hyperemesis gravidarum (HG) represents the most severe end of the nausea and vomiting of pregnancy spectrum. It has a reported incidence of approximately 0.3–3% of pregnancies and is the most common cause of hospitalization in early pregnancy and the second most common cause of hospitalization in pregnancy overall. In June 2024, the ACOG published a Clinical Expert series summarizing the inpatient management of HG. In that guidance, it describes mirtazapine as an “alternative pharmacologic” option. How effective is this medication compared to ondansetron? A new study (published ahead of print on 12/30/25 and officially out June 2026), out of Denmark, sheds some new light on this medication. This trial is the first double-blind RCT comparing mirtazapine to ondansetron AND placebo. Although a BIG limitation of this study exists (which we will discuss), it does provide some interesting insights. Listen in for details.1. (ACOG CES) Clark, Shannon M. MD; Zhang, Xue MD; Goncharov, Daphne Arena MD. Inpatient Management of Hyperemesis Gravidarum. Obstetrics & Gynecology 143(6):p 745-758, June 2024. | DOI: 10.1097/AOG.00000000000055182. Ostenfeld, AnneDroogh, Marjoes et al.Mirtazapine or ondansetron for hyperemesis gravidarum. A randomized placebo-controlled trial. American Journal of Obstetrics & Gynecology, June 2026