Dr. Chapa’s OBGYN Clinical Pearls

Major health organizations, including the CDC and ACOG, recommend universal Hepatitis C Virus (HCV) screening for all pregnant women during each pregnancy and at time of delivery. Ideally, pregnant women should be screened for hepatitis C virus infection at the first prenatal visit of each pregnancy. If the antibody screen result is positive, hepatitis C virus RNA polymerase chain reaction testing is done to confirm the diagnosis. The risk of perinatal transmission of HCV is up to 9%, with at least one-third of transmissions occurring antenatally. While antiviral therapy is recommended for Hepatitis B in pregnancy with a viral load...

Welcome to the no spin podcast. In today's episode, we're tackling a subject that's gaining traction but carries significant risks: the freebirth and wildbirth movement. We'll explore the rising trends of unassisted childbirth, where individuals choose to forgo professional medical care during labor and delivery- or during the prenatal period altogether, and the potential devastating outcomes associated with these practices. Join us as we unpack the motivations behind these choices, the lack of evidence supporting their safety, and the serious harms that can arise for both parent and baby. We'll be examining medical guidelines, and real-world consequences to provide...

In 2024, the ASCCP updated their guidance to include DualStain technology as part of primary HPV cervical cancer screening. Now, on December 4, 2025, the ACS has updated their guidance regarding patient self-collectionof vaginal specimens for primary HPV screening. This is fascinating and proves medicine moves fast! Should a negative self-collection test result have a repeatscreen in 1, 3 or 5 years, or later? Listen in for details.1.     Self-collected vaginal specimens for humanpapillomavirus testing and guidance on screening exit: An update to theAmerican Cancer Society cervical cancer screening guideline2.     https://open.spotify.com/episode/5x4J3TQJPdkHtV9RLTUi5oSTRONG COF...

In the original Løvset maneuver (described for breech presentations), the fetus is rotated in one direction to facilitate arm delivery. For shoulder dystocia, the reverse Løvset applies rotation in the opposite direction—specifically rotating the posterior shoulder toward a "belly down" position through up to 180 degrees of rotation. These maneuvers were first described by Norwegian obstetrician Jørgen Løvset in the 1940s. Now, in the current November 2025 AJOG, this maneuver is back in the spotlight. In this episode, we will review the reverse Løvset maneuver for shoulder dystocia and review its effectiveness. Which maneuver is more li...

Misoprostol, as an E1 prostaglandin, is primarily used in obstetrics for cervical ripening (when the Bishop Score is under 6) and/or for labor INDUCTION (to begin labor). IV oxytocin is the principal agent used to augmentlabor, as needed, once labor has begun. In the US, misoprostol is not typically used after 4-6 cm cervical dilation. However, in a patient who requires augmentation,and who declines Pitocin while asking or oral misoprostol, can that be used? Is that evidence-based? The data may surprise you. Listen in for details. 1.     SOGC Guideline No. 432c: Induction of Labour Robinson,Debbie Campbell, Kim H...

Actinomyces species are considered part of the normal vaginal and urogenital tract flora. The percentage of Pap smears containing Actinomyces-like organisms varies but is most commonly reported as approximately 7% among women using IUDs. That number is supported by multiple sources, including the Infectious Diseases Society of America guideline and several clinical studies. The incidence can be higher or lower depending on the type of IUD; for example, copper IUDs have been associated with rates up to 20%, while levonorgestrel-releasing IUDs show lower rates around 2.9%. In women with an IUD, who are found to have this finding on their liquid-based Pap...

Recurrent pregnancy loss (RPL) affects approximately 5% of couples and is an emotional burden on those affected. There is some evidence that vaginal progesterone supplementation may be considered in patients with recurrent pregnancy loss who are experiencing vaginal bleeding during the first trimester. But what about prophylactic low dose aspirin in the first trimester, or preconceptionally, for unexplained RPL? Is that evidence-based? A new publication from the SMFM’s journal Pregnancy has examined this. Listen in for details. 1. 22 November 2025: Low-dose aspirin in unexplained recurrent pregnancy loss: A systematic review and meta-analysis (Pregnancy): https://obgyn.onlinelibrary.wiley.com/doi/10.1002/pm...

Having data is sometimes different than having clinically applicable data. This is exactly the issue with the proposed plan to reduce surgical site infection (SSI) by changing surgical gloves after placental delivery at C-Section. Just 24 hours ago, we received the question from a PGY4 OBGYN resident asking whether the practice of changing surgical gloves at C-Section after placental delivery to reduce SSI was evidence-based. So, in this episode, we will review the data - which is timely since this was recently published on November 13, 2025 in the J Hospital Infection. This study follows a statement on this practice released by...

Muscular dystrophy (MD) is a group of genetic diseases that affect about 16 to 25 per 100,000 people in the US, with the most common childhood form being Duchenne muscular dystrophy (DMD) and the most common adult form being myotonic dystrophy. The prevalence of DMD is estimated at around 1 in 3,500 live male births. Prenatal carrier screening for this is part of the ACMG Tier 3 expanded carrier panel. This is different from spinal muscular atrophy (SMA). As we recently had a patient who was a MD carrier, with affected male children, who we cared for, we decided to do a quick review of muscular...

Regional anesthesia, typically with a spinal or epidural, haslong been favored for cesarean births due in part to concerns about the effects that general anesthesia (GA) may have on newborns at delivery. However, data has shown that up to 1 in 6 women may experience pain with a “topped-off”labor epidural, during the cesarean. A new publication in the journal Anesthesia is now being interpreted as implying that general anesthesia may be a valid alternative electively. Is that what this new study found? Has GA been linked to postpartum depression? What about later child neurodevelopmental delays? This is a fascinating topic…Listen...

The US has no shortage of lidocaine patch television commercials. Topical lidocaine has a role for local, topical, minor aches and pains. What about lidocaine patches for post-op cesarean section pain? Is there data for that? A brand-new meta-analysis in AJOG-MFM (Nov 13, 2025) looks at this option. However, there has been 3 prior reviews on the same topic from 2019, 2022, and 2023. Do they all arrive at the same result? Listen in for details!1.     Smoker J, Cohen A, Rasouli MR, Schwenk ES. TransdermalLidocaine for Perioperative Pain: A Systematic Review of the Literature. Current Pain and Headache Reports.2019;23(12):89. doi:10.1007/s11916-019-0830-9.<...

Podcast Family, we have covered the subject of Measles previously on this show (links below). Those episodes were a preview of what has now been released ahead of print as a narrative review in the Green Journal! In this episode, we will summarize the KEY points of measles infection in pregnancy and re-state the “rule of 4” and the importance of the number 10 regarding this.1. Feb 24, 2025: Measles 101: https://open.spotify.com/episode/4lXrpqKTJPdDcTXPxpEmcb2. April 27, 2019: Measles!! ACOG Practice Advisory: https://creators.spotify.com/pod/profile/dr-hector-chapa/episodes/MEASLES---ACOG-practice-advisory-e3s1p43. Joseph, Naima T. M...

The term "hypnosis" was first described in 1843 byScottish surgeon James Braid, who published the book Neurypnology. He coined the term "hypnosis" from the Greek word for sleep to describe the trance-like state induced by focusing on a bright object. Self-hypnosis has nowbeen shown to aid in menopausal hot flash reduction! In this episode, we will review this brand new publication from JAMA Network which confirmed via a multicenter RCT that a simple daily hypnosis audio session was effective forsymptom relief. The study is the first to compare self-guided hypnosis with an active control condition (i.e. sham white noise c...

Well, from time to time we cover RANDOM tidbits of information which cover RANDOM questions and/or RANDOM patient care issues that we encounter. In this episode we will cover one OB issue related to recurrent pregnancy loss, one GYN issue related to unilateral breast swelling in a patient with SLE, and one RANDOM life perspective response from a mock interview that I participated in for a residency candidate. Listen in fordetails!1.     Viviana DO; Giugni, Claudio Schenone MD; Ros, Stephanie T. MD, MSCI. Factor V and recurrent pregnancy loss: de Assis, Evaluation of Recurrent Pregnancy Loss. Obstetrics & Gyneco...

On August 15, 2025, we reviewed the data from an FDA expert panel calling on the FDA to remove the exiting Black Box warning on commercial HRT options for menopausal care. In a historic decision, this happened today. Listen in for details! 1. https://www.cbsnews.com/video/fda-chief-explains-changes-to-black-box-warnings-on-some-hormone-therapies-for-menopause/2. https://www.hhs.gov/press-room/hhs-advances-womens-health-removes-misleading-fda-warnings-hormone-replacement-therapy.html

The ACOG acknowledges that maternal obesity affects labor curves and recommends allowing more time for cervical dilation before diagnosing labor arrest in obese patients. This approach aims to avoid unnecessary interventions, such as premature cesarean delivery, which may occur if standard labor curves are strictly applied to obese women. In this episode, we will review a new study from the AJOG (08 Nov 2025) which describes labor progression and duration according to maternal body mass index, validating the need (possibly) for a BMI -based labor curve. Has there been advocates of a BMI-based labor curve? Listen in for details.1. ...

Do you routinely order prophylactic antibiotics at time ofsecond-degree laceration repair? Is there data for that? While the use of prophylacticantibiotics “is reasonable” (per ACOG PB 198) for OASIS lacerations, what doesthe data look like for second degree lacs? Well, the answer is both supportiveAND non-supportive of that practice! In this episode, we will cover a brand newpublication (RCT) from BMJ on this very issue, and also highlight a meta-analysisfrom Plos One (May 2025) that also examined this question. Listen in fordetails!1.     ACOG PB 1982.     Armstrong H, Whitehurst J, Morris RK, HodgettsMorton V, Man R; CHAPTER group. Antibiotic prophylaxis fo...

On March 29, 2023, we released an episode titled, “The 4 PCOS Phenotypes”. That was in 2023! Now, on 29 October 2025, in the journal Nature Medicine, researchers have published, “Data-driven (FOUR) subtypes of polycystic ovary syndrome and their association with clinical outcomes”. PCOS is not ONE condition: is a constellation of metabolic, endocrine, and ovulatory dysregulation. We covered these 4 phenotypes back then. Is this what the “new data” found? Or what it something else? And how does these affect IVF or pregnancy outcomes? Listen in for details!1. Gao, X., Zhao, S., Du, Y. et al. Data-driven subtypes of polycystic ovary syndrome and their associ...

Taking folic acid prior to conception and during pregnancy can help protect the unborn baby from developing abnormalities. Supplements are particularly important for women who have epilepsy, as anti-seizure medication (previously known as anti-convulsants or anti-epileptic drugs) can lead to a deficiency in folic acid. Until 2023, high doses of 4-5 mg per day were recommended. However, this has changed as the data has changed. Did you know the SMFM no longer recommends “high dose” folic acid preconceptionally for patients on seizure medications? This is also highlighted in a recently released epub from Obstetrics and Gynecology (Green Journal) on October 31, 2025. List...

Back on August 9, 2024, we released an episode (link in the show notes) reviewing the renewed interest in transfusing whole blood for PPH rather than component therapy. Now, in O&G open, authors from my Alma Mater (UT Southwestern) have published new data bolstering the use of whole blood for PPH. Listen in for details.1. Clinical Pearls Episode 2024: https://open.spotify.com/episode/0ZhqoIE9wMcAboDlevq9OW?si=rM32uK8ER8uuWmq4mf5dzA2. Ambia, Anne M. MD; Burns, R. Nicholas MD; White, Alesha MD; Warncke, Kristen MD; Gorman, April MS; Duryea, Elaine MD; Nelson, David B...