Higher Preprocedual Nutrition Intake Reduces the Loss of Relative Muscle Mass After Transcatheter Aortic Valve Implantation

Sarcopenia is highly prevalent among candidates for transcatheter aortic valve implantation (TAVI). Sarcopenia index, the ratio of serum creatinine to serum cystatin C, has been proposed to be a novel biomarker in muscle assessment. Retrospective data were collected from patients diagnosed with aortic stenosis who underwent TAVI. Body composition assessment was conducted, and nutrition intake was recorded on a total of 127 patients. Sarcopenia index demonstrated a notably higher area under the curve (AUC) compared to bioelectrical impedance analysis in both male (AUC = 0.779) and female (AUC = 0.764) patients. Higher pre-procedural nutrition intake was found to be associated with a lower loss of relative muscle mass after TAVI ( P = .003).