Thinking About Ob/Gyn

Episode 9.10 Pit Breaks, Cannabis, and IUDs for Endometrial Protection


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Howard and Antonia explore the evidence behind pit breaks in labor, cannabis use in pregnancy, and IUD options for hormone replacement therapy.

• Pit breaks in labor lack substantial evidence of benefit when used in active labor
• Current research suggests stopping oxytocin during active labor may slightly increase cesarean rates rather than decrease them
• Long pit breaks (up to 8 hours) in latent labor may be beneficial by allowing rest and promoting patience
• Recent systematic review shows prenatal cannabis use increases risk of low birth weight by 75%, preterm birth by 50%, and perinatal mortality by 29%
• Cannabis use during pregnancy (7.2% of pregnant women) now exceeds tobacco use
• Retrospective studies on doula care show association with better outcomes, but can't establish causation due to inherent differences in patients who seek doulas
• 52mg levonorgestrel IUDs (Mirena/Liletta) are suitable for endometrial protection during HRT, but evidence only supports use up to 5 years
• Most systematic reviews combine heterogeneous studies and shouldn't be considered level 1 evidence

We'd love to hear your questions! Send them to us through our Instagram or website thinkingaboutobgyn.com.

00:04:52 Pit Breaks in Labor

00:15:32 Examining Evidence on Oxytocin Discontinuation

00:26:08 Prenatal Cannabis Use and Adverse Outcomes

00:36:07 Doula Care Study Analysis

00:57:22 Levonorgestrel IUD Use in HRT

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Thinking About Ob/GynBy Antonia Roberts and Howard Herrell

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