Quality‐of‐life research in adult patients with congenital heart disease: current status and the way forward

Over the past four decades, the number of papers on quality of life (QoL) in congenital heart disease (CHD) has grown exponentially. However, firm conclusions have been hard to draw, because conceptual issues occurred and methodological differences prevented direct comparisons of studies. In general, QoL in CHD patients is good and it can be even better than in healthy peers when measured as life satisfaction. When QoL is measured as physical functioning, patients with complex CHD do worse than patients with moderate or mild defects or healthy individuals. APPROACH-IS was a large-scale international project that confirmed international variations in QoL, with Australian patients reporting the best QoL. Poor QoL was predicted by older age, being a job seeker, unemployed or disabled, never having married and those with worse functional status. Perceived illness and religion and spirituality were also significant predictors for QoL. On the other hand, country-specific characteristics and healthcare system factors did not play a significant role in explaining variances in QoL of patients with CHD around the globe. Future studies should rely on a sound conceptual basis, use longitudinal research designs, be conducted in international, multi-centre settings and evaluate interventions that promote patients' QoL.