Dr. Chapa’s OBGYN Clinical Pearls

Latest Episodes:

Routine OB Urine Dips per Visits? Jan 19, 2023

Show notes

Routine, repetitive urine dipsticks (meaning at each prenatal visit) were introduced into prenatal care back in the 1960s and 70s. The idea was to act as an early screen for bacteriuria (ASB), proteinuria as a screen for preeclampsia, and glycosuria as a screen for GDM. That was based more on expert opinion rather than clinical trials. The utility of urine dipstick testing in pregnant women has been debated for years, with studies suggesting minimal use in asymptomatic patients. Urine dips as still integrated into clinical practice mainly out of tradition…But is this evidence-based now? And if it is NOT evidence-based to do this with every visit and with every patient, when SHOULD it be done? What does ACOG have to say? Well, turns out ACOG says a lot- so you’ll want to stay tuned until the end of the episode as we cover that and a lot more.

IUDs Don’t Cause Abortion Jan 17, 2023

Show notes

Paragard, Mirena, and Liletta IUDs are the most effective types of emergency contraception. Data from the 1980s, now seemingly forgotten, showed that IUDs work primarily on inhibition of fertilization rather than implantation effects. Nonetheless, misperceptions regarding the IUDs mechanisms of action persist, with some websites stating IUDs are abortive agents. Do IUDs cause abortion? Let’s examine the evidence.

The Placenta Menu? Placentophagy Reviewed. Jan 15, 2023

Show notes

“Placentophagy” is not a new concept. Most non-human mammals eat their placentas after giving birth but humans, historically, have not. Is there evidence to support this practice? Where did this idea come from? How did Rolling Stone magazine help launch this phenomenon back in the 1970s? Is Kim Kardashian onto something cutting edge by advocating for Placental encapsulation? In this episode we will walk through history and learn some pretty remarkable things about this practice. Grab your favorite placental snack, and start listening! 🍽️🍴🍴

Max Pitocin Infusion Rate (mU/min)? Jan 12, 2023

Show notes

The American College of Obstetricians and Gynecologists supports the use of both low-dose and high-dose oxytocin regimens to induce and augment labor, but does not specify MAXIMUM DOSE RATES. Most hospitals, however, have protocols that impose a maximum dose rate of oxytocin infusion. Is this evidence-based? Is there a danger with going above a certain threshold of infusion, for example, greater than 20 milliunits/minute? A new publication coming out in Obstetrics and Gynecology (the Green Journal) sheds some light on this very issue. Let’s talk about the maximum oxytocin infusion rate and labor.

Don’t Do Surveillance For These! Jan 10, 2023

Show notes

The ACOG states, “In spite of its unproven value, antepartum fetal surveillance is widely integrated into clinical practice in the developed world”. Antepartum fetal surveillance can be done by a variety of techniques and, despite its unproven value, is a mainstay of obstetrical management. At what BMI should we offer fetal surveillance? Is this current BMI or pre-pregnancy BMI? And what about advanced maternal age? What is recommended for that? Did you know that there was a change in the ACOG wording regarding this AMA issue from June 2021 to August 2022? And what about ultrasound surveillance for cervical length after cerclage placement? Is that evidence based? We are going to dive into these 3 clinical scenarios (obesity, AMA, cervical length after cerclage) in this episode. 👍

Breech! ECV and Beyond Jan 08, 2023

Show notes

Breech presentation at term occurs in approximately 3 to 4% of pregnancies. While the vast majority are simply chance events, breech presentation could be a marker of other fetal comorbid conditions. When should ECV be attempted? Does the ACOG recognize neuraxial analgesia as a tool to increase ECV success rates? What’s better spinal or epidural block? What are relative contraindications to ECV? In this episode, we will summarize the latest data on fetal breech presentations and answer key questions regarding the process of ECV. Jasmine…here’s your podcast! 😊

Folic Acid, Folate, or L-Methylfolate? Jan 04, 2023

Show notes

On some current social media channels, there is a hot debate as to why professional medical societies still recommend prenatal folic acid compared to the more “biologically, active” L-methylfolate. Are they onto something here? Published data has shown that anywhere from 40-60% of the general population may have an MTHFR mutation leading to the inability to process folic acid. Should we be screening for this mutation? What about screening for homocystine levels? Are these medical societies incorrect in still recommending folic acid rather than L-methylfolate? We are going to tackle these questions and provide a very simple take home message at the end of this episode. We’ll set the record straight regarding “Folic acid, folate, or L-methylfolate”.

Don’t Forget Prenatal Choline! Jan 02, 2023

Show notes

Currently on social media, there seems to be an interest in prenatal choline supplementation. Choline, a B vitamin, is not typically within standard prenatal vitamins. Is this micronutrient important for prenatal supplementation? What do professional/medical societies have to say regarding prenatal supplementation? What’s the data? In this episode, we will summarize choline’s role in fetal/newborn development, examine the data regarding deficiency, and talk supplementation recommendations. (Shout out to Dr. Cat Jimenez for the subject suggestion.)

Fibroids, Menopause, and HRT Dec 28, 2022

Show notes

Uterine fibroids are benign tumors that arise from a single genetically altered myometrial stem cell under the influence of gonadal hormones. Traditionally, it has been taught that fibroids universally diminish in size after menopause. However, an article published in 2021 showed a possibility of fibroid growth after menopause in overweight/obese women. Do fibroids need surveillance in menopause? Is HRT contraindicated in the fibroid patient? And which HRT is the most fibroid friendly? We will answer these questions in this episode.

A Life Lesson From “ER” Dec 27, 2022

Show notes

I am a fan of the original hit TV show, “ER”. Although mostly melodramatic and outside of bounds of reality Medicine, one episode (season 6, episode 6) has a valuable life lesson for all of us. I originally viewed that episode when it was live and current, and I have never forgotten the message. In this episode, will discuss this important life lesson learned, and I promise you won’t be the same thereafter.

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