Abstract

Introduction: Persons who conceived through Assisted Reproductive Technology (ART) have an increased risk of obstetric-associated complications. Hypothesis: ART is associated with increased acute cardiovascular (CV) complications during delivery admissions. Methods: We used data from the National Inpatient Sample (2008-2019) while utilizing ICD-9 or ICD-10 codes to identify delivery hospitalizations and ART procedure. Results: A total of 45,867,086 weighted delivery cases were identified, of which 0.24% were among individuals who conceived through ART (n=108,542). Persons with an ART history were older at the time of delivery (median 35 vs. 28 years, p<0.01) and had higher prevalence of hypertension, gestational diabetes, and dyslipidemia (all, p<0.01). After adjustment for age, race/ethnicity, comorbidities, multiple gestation, insurance, and income, ART remained an independent predictor of peripartum CV complications including preeclampsia (aOR 1.48 [1.45-1.51], p<0.01), heart failure (aOR 1.94 [1.10-3.40], p<0.01), and cardiac arrhythmias (aOR 1.39 [1.30-1.48], p<0.01) compared to natural conception. Likewise, the risk of acute kidney injury (aOR 2.57 [2.25-2.92], p<0.01), stroke (aOR 1.57 [1.23-2.01], p<0.01), pulmonary edema (aOR 2.29 [2.02-2.61], p<0.01), and venous thromboembolism (aOR 1.92 [1.63-2.25], p<0.01) were higher with ART. However, higher odds of developing peripartum cardiomyopathy or acute coronary syndrome were not associated with ART. Length of stay (3 vs. 2 days, p<0.01) and cost of hospitalization ($5,903 vs. $3,922, p<0.01) were higher for deliveries among persons with history of ART. Conclusions: Persons who conceived with ART had higher risk of preeclampsia, heart failure, cardiac arrhythmias, pulmonary edema, AKI, stroke, and VTE during their delivery hospitalizations. This may in part contribute to increased resource utilization seen in patients conceiving with ART

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