494: Risk of postpartum readmission and severe maternal morbidity in women with pre-gestational diabetes

Weatherborn, Megan; Fisher, Theresa; Malhotra, Tani; Boscia, Alexander L.; Hackney, David; Putra, Manesha

doi:10.1016/j.ajog.2019.11.510

Cited by 1 publication

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“…The rate of SMM in this sample, 6.3%, is substantially higher than other available estimates for both the general population and individuals with chronic hypertension. 6 7 8 9 An analysis of the prevalence of SMM using linked California birth certificate data and delivery discharge records reported that 3.7% of individuals with chronic hypertension experienced SMM (2,319 out of 62,541 births). 9 However, the population in this study was restricted to individuals with chronic hypertension and at least one prescription of antihypertensive medication filled in the 6 months prior to pregnancy, supporting that the study population had more severe hypertension than the study using linked California data.…”

Section: Discussionmentioning

confidence: 99%

“…Chronic hypertension is one such comorbidity which may impact the rate of SMM. 6 7 8 9 In a sample of approximately 4 million live births in California, the prevalence of pregestational hypertension was 5% in births with SMM as compared to 2% in births without SMM. 9…”

mentioning

confidence: 99%

“…Chronic hypertension is one such comorbidity which may impact the rate of SMM. [6][7][8][9] In a sample of approximately 4 million live births in California, the prevalence of pregestational hypertension was 5% in births with SMM as compared to 2% in births without SMM. 9 The consequences of chronic hypertension during pregnancy are well established and include increased risk of preeclampsia, eclampsia, stroke, placental abruption, renal failure, and maternal mortality.…”

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confidence: 99%

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Antihypertensive Medication Use before and during Pregnancy and the Risk of Severe Maternal Morbidity in Individuals with Prepregnancy Hypertension

et al. 2022

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Objective Our objective is to examine severe maternal morbidity (SMM) and patterns of antihypertensive medication use before and during pregnancy among individuals with chronic hypertension. Study Design We examined 11,759 pregnancies resulting in a live birth or stillbirth to individuals with chronic hypertension and one or more antihypertensive prescription 6 months before pregnancy (Optum, 2007–17). We examined whether study outcomes were associated with the use of medication as compared to no use during pregnancy. In addition, patterns of medication use based on the Food and Drug Administration guidance and literature were evaluated. Medication use was divided into prepregnancy and during pregnancy use and classified as pregnancy recommended (PR) or not pregnancy recommended (nPR) or no medication use. SMM was defined per the Centers for Disease Control and Prevention definition of 21 indicators. Risk ratios (RR) reflecting the association of SMM with the use of antihypertensive medications were computed using modified Poisson regression with robust standard errors and adjusted for maternal age, education, and birth year. Results Overall, 83% of individuals filled an antihypertensive prescription during pregnancy and 6.3% experienced SMM. The majority of individuals with a prescription prior to pregnancy had a prescription for the same medication in pregnancy. Individuals with any versus no medication use in pregnancy had increased adjusted RR (aRR) of SMM (1.18, 95% confidence interval [CI]: 0.96–1.44). Compared to the use of PR medications before and during pregnancy, aRRs were 1.42 (95% CI: 1.18–1.69, 12.4% of sample) for nPR use before and during pregnancy, 1.52 (1.23–1.86; 12.4%) for nPR (before) and PR (during) use, and 2.67 (1.73–4.15) for PR and nPR use. Patterns with no medication use during pregnancy were not statistically significant. Conclusion Pattern of antihypertensive medication use before and during pregnancy may be associated with an elevated risk of SMM. Further research is required to elucidate whether this association is related to the severity of hypertension, medication effectiveness, or suboptimal quality of care. Key Points

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