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As more adults are living into old age, they are predisposed to cardiovascular disease (CVD) and the demand for cardiac rehabilitation is increasing. We aimed to verify predictors of length of stay (LOS) in young (Y) vs older (O) vs very old (VO) CVD patients, admitted to residential cardiac rehabilitation. Patients' demographic and clinical characteristics at admission, as well as Barthel index (BI), Cumulative Illness Rating Scale (CIRS), comorbidity severity/complexity, NYHA classification, left ventricular ejection fraction (LVEF), physical activity level were compared in Y (≤65 years) vs O (between >65 and <76 years) vs VO patients (with an age of ≥76 years) against LOS. In 5,070 consecutively CVD patients were included; they were 1392 Y (38%) 1944 O (35%) 1334 VO patients (27%) and LOS duration was 16±7, 19±9 and 22±10 days, respectively (p<0.0001). In Y, LOS was linked to BI (p=0.000) and to LVEF (p=0.000) at multivariable analysis with area under ROC curve of 0.82, whereas in O, LOS was associated to gender (p=0.013) CIRS severity (p=0.000), BI (p=0.000), LVEF (p=0.000), and in those VO to gender (p=0.004), BI (p=0.000) and medical infusion (p=0.000) at multivariable with ROC curve of 0.83 and 0.74, respectively. In very old patients, a prolonged LOS is related to extra-cardiac conditions. Therefore, we promote a specific cardiac rehabilitation for these patients.

Over the years left ventricular assist devices (VADs) have become more durable and reliable, smaller, simpler, easier to implant and more comfortable. The extensive experience now acquired shows successful hospital discharge with VAD use. We are entering an era in which long-term mechanical circulatory support will play an increasing role in the approach to end-stage heart failure (HF); at the same time, the extension of VADs into destination therapy has revealed the limitations of our understanding of these populations. This second paper on cardiovascular prevention and rehabilitation for patients with left VADs will deal with the management of patients outside the highly specialized HF centers and surgical setting, with particular focus on postoperative patient management. Outpatient management of VAD patients is time-intensive, and a multidisciplinary approach is ideal in long-term care. Although the new devices have definite advantages over the older pumps, some challenges still remain, i.e. infection, stroke, device thrombosis, gastrointestinal bleeding, recurrent HF symptomatology with or without multisystem organ failure, and occurrence of ventricular arrhythmias.