In the 09/1/2018 Society for Academic Specialists in General Obstetrics and Gynecology’s (SASGOG’s) Pearls of Exxcellence publication, “Management of Preeclampsia at Term”, it states: “If hypertension management requires acute IV treatment, it is often prudent to initiate oral labetalol or EXTENDED-release nifedipine to maintain blood pressures below the severe range. Intrapartum blood pressure management and consultation should not delay progress towards delivery. Fetal monitoring should be continuous.” In the original ACOG CO 692 from 2017, oral nifedipine was first referenced as an alternative to IV meds GIVEN INTRAPARTUM, stating, “Although relatively less information currently exists for the use of calcium channel blockers for this clinical indication, the available evidence suggests that immediate release oral nifedipine also may be considered as a first-line therapy, particularly when intravenous access is not available.” This may be given orally as 10mg, 20mg, and 20 mg separated in time by 20 minutes per dose. Notice it says “immediate release oral nifedipine”. But what about EXTENDED release nifedipine intrapartum as stated by the SASGOG? Is that an option after immediate attentive and therapy has been given with IV anti-hypertensives? Listen in for details.
1. Emergent Therapy for Acute-Onset, Severe Hypertension During Pregnancy and the Postpartum Period: Committee Opinion, Number 692. Obstetrics & Gynecology 129(4):p e90-e95, April 2017. | DOI: 10.1097/AOG.0000000000002019
2. Gestational Hypertension and Preeclampsia: ACOG Practice Bulletin, Number 222. Obstet Gynecol. 2020 Jun;135(6):e237-e260. doi: 10.1097/AOG.0000000000003891. PMID: 32443079.
3. Cleary EM, Racchi NW, Patton KG, Kudrimoti M, Costantine MM, Rood KM. Trial of Intrapartum Extended-Release Nifedipine to Prevent Severe Hypertension Among Pregnant Individuals With Preeclampsia With Severe Features. Hypertension. 2023 Feb;80(2):335-342. doi: 10.1161/HYPERTENSIONAHA.122.19751. Epub 2022 Oct 3. PMID: 36189646.
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