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Cardiovascular disease family history and risk of pregnancy loss.

ABSTRACT: PURPOSE:To determine whether family history of cardiovascular disease (CVD) is a risk factor for pregnancy loss, given potential shared etiology, including vascular mechanisms involved in reproduction and placentation. METHODS:In a prospective study, first-degree family histories were self-reported before pregnancy among women with 1-2 previous losses. Women were followed for up to 6 menstrual cycles while attempting pregnancy and through pregnancy. Pregnancies were ascertained by urinary human chorionic gonadotropin and confirmed by ultrasound. Risk ratios and 95% confidence intervals for pregnancy loss were estimated using weighted Poisson regression models with robust standard errors adjusted for covariates including prepregnancy body mass index and sociodemographics. RESULTS:Of 1228 women enrolled, 742 had a clinically confirmed pregnancy, and of these, 18% experienced a clinical pregnancy loss. Forty six percent of women reported family history of CVD, diabetes, hypertension, or hypercholesterolemia/dyslipidemia. Family history of CVD was not associated with the risk of pregnancy loss overall (1.01; 95% confidence interval: 0.64, 1.59) or among women with 2 previous losses (1.05; 0.51, 2.17). Family history of hypertension was also not associated with pregnancy loss (0.98; 0.65, 1.46). CONCLUSIONS:Family history of CVD is not providing additional information helpful in determining the risk of subsequent pregnancy loss in an at-risk group.

SUBMITTER: Yeung EH

PROVIDER: S-EPMC6548640 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature

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Cardiovascular disease family history and risk of pregnancy loss.

Yeung Edwina H EH Park Hyojun H Nobles Carrie C Mumford Sunni L SL Silver Robert R Schisterman Enrique F EF

Annals of epidemiology 20190411

<h4>Purpose</h4>To determine whether family history of cardiovascular disease (CVD) is a risk factor for pregnancy loss, given potential shared etiology, including vascular mechanisms involved in reproduction and placentation.<h4>Methods</h4>In a prospective study, first-degree family histories were self-reported before pregnancy among women with 1-2 previous losses. Women were followed for up to 6 menstrual cycles while attempting pregnancy and through pregnancy. Pregnancies were ascertained by ...[more]

PMID: 31076211

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Project description:Background Family history of atherosclerotic cardiovascular disease (ASCVD) is easily accessible and captures genetic cardiovascular risk, but its prognostic value in secondary prevention is unknown. Methods and Results We followed 25 615 patients registered in SWEDEHEART (Swedish Web-System for Enhancement and Development of Evidence-Based Care in Heart Disease Evaluated According to Recommended Therapies) from their 1-year revisit after a first-time myocardial infarction during 2005 to 2013, until December 31, 2018. Data on relatives, diagnoses and socioeconomics were extracted from national registers. The association between family history and recurrent ASCVD was studied with Cox proportional-hazard regression, adjusting for risk factors and socioeconomics. A family history of ASCVD was defined as hospitalization due to myocardial infarction, angina with coronary revascularization, stroke, or cardiovascular death in ≥1 parent or full sibling, with early-onset defined as disease-onset before 55 years in men and 65 in women. The additional discriminatory value of family history to Thrombolysis in Myocardial Infarction Risk Score for Secondary Prevention was assessed with Harrell's C-index difference and reclassification was studied with continuous net reclassification improvement. Family history of early-onset ASCVD in ≥1 first-degree relative was present in 2.3% and was associated with recurrent ASCVD (hazard ratio [HR] 1.31; 95% CI, 1.17-1.47), fully adjusted for risk factors (HR, 1.22; 95% CI, 1.05-1.42). Early-onset family history improved the discriminatory ability of the Thrombolysis in Myocardial Infarction Risk Score for Secondary Prevention, with Harrell's C improving 0.003 points (95% CI, 0.001-0.005) from initial 0.587 (95% CI, 0.576-0.595) and improved reclassification (continuous net reclassification improvement 2.1%, P<0.001). Conclusions Family history of early-onset ASCVD is associated with recurrent ASCVD after myocardial infarction, independently of traditional risk factors and improves secondary risk prediction. This may identify patients to target for intensified secondary prevention.

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Cardiovascular disease family history and risk of pregnancy loss.

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Cardiovascular disease family history and risk of pregnancy loss.

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