Incidence, characteristics and long-term outcomes of peripartum cardiomyopathy: Insights from the Bergen peripartum cardiomyopathy study

Overview

Peripartum cardiomyopathy represents a rare form of heart failure with unclear etiology, occurring during pregnancy or the postpartum period. This investigation examines the incidence, clinical characteristics, and long-term outcomes of peripartum cardiomyopathy within a West-Norwegian population cohort to establish regional epidemiological patterns and prognostic indicators.

Methods and approach

The Bergen peripartum cardiomyopathy study employed prospective cohort methodology to identify and characterize cases presenting with peripartum cardiomyopathy across the study region. Clinical and demographic data were systematically collected from enrolled patients, including anthropometric measures, hemodynamic parameters, and left ventricular function assessments. Baseline cardiovascular risk factors were evaluated as potential predictors of disease occurrence. Long-term clinical outcomes and left ventricular recovery patterns were monitored through structured follow-up protocols.

Results

The regional incidence of peripartum cardiomyopathy was demonstrated to be relatively low within the West-Norwegian population. Multivariable analysis identified pre-pregnancy body mass index and elevated systolic blood pressure as significant independent predictors of peripartum cardiomyopathy development, both modifiable cardiovascular risk factors. The entire patient cohort achieved full clinical and left ventricular function recovery during the study follow-up period, indicating favorable long-term prognosis in this population.

Implications

The identification of pre-pregnancy BMI and systolic blood pressure as modifiable risk factors suggests potential for preventive interventions targeting these parameters in high-risk pregnancies. The universal recovery observed in this cohort provides important prognostic information, though regional variation in incidence and outcomes necessitates caution in generalizing findings. Establishing standardized incidence estimates and outcome trajectories requires collaborative multicenter research frameworks capable of providing reliable nationwide epidemiological descriptions and identifying population-specific factors influencing disease manifestation and resolution.