Dysphagia and malnutrition limit activities of daily living improvement in phase i cardiac rehabilitation: a prospective cohort study for acute phase heart failure patients

Dysphagia and malnutrition combinations in hospitalized patients with acute heart failure (AHF) may affect activities of daily living (ADL) after hospital discharge more than dysphagia or malnutrition alone. The aim of the present study to clarify the impact of the combination of dysphagia and malnutrition on ADL in hospitalized patients with acute phase heart failure who have undergone cardiac rehabilitation (CR). Prospective cohort study. Acute care hospital. Participants were 224 AHF patients undergoing CR. Barthel index (BI), functional oral intake scale (FOIS), controlling nutritional status (CONUT), short physical performance battery (SPPB), and mini-mental state examination were evaluated at baseline. We examined primary effects of predictors (CONUT) and the moderator (FOIS) and the interaction effect of FOIS and CONUT (FOIS × CONUT) using hierarchical linear regression model and simple-slope tests. The ADL independence dropped in 29.5% of the patients on hospitalization; however, 82.6% of the patients successfully regained their independence at discharge. Based on the FOIS score and nutritional status on admission, 58.5% of the patients were classified into the non-dysphagia and non-malnutrition categories, 21.0% into non-dysphagia and malnutrition, 15.2% into dysphagia and non-malnutrition, and 5.3% into dysphagia and malnutrition. Lower FOIS and SPPB scores as well as the FOIS × CONUT interaction predicted a significantly lower BI but not CONUT. Simple slope test revealed a negative association between CONUT and BI with low-level FOIS (B = − 2.917, P