Association between worsening renal function severity during hospitalization and low physical function at discharge: a retrospective cohort study of older patients with heart failure and chronic kidney disease from Japan.

Background: The number of hospitalized older patients with chronic heart failure, chronic kidney disease, and worsening renal function is rising in Japan. This study aimed to clarify the impact of the severity of worsening renal function during hospitalization on low physical function at discharge of these patients.

Methods: We included 573 consecutive heart failure patients who underwent phase I cardiac rehabilitation.

Relationship between physical function at discharge and hospital meal intake in elderly patients with heart failure.

The relationship between low physical function (LPF) at discharge and food intake percentage (FIP) during hospitalization is unclear. We aimed to clarify the relationship between LPF at discharge and FIP and the change in nutritional status during hospitalization in elderly patients with heart failure (HF), and determine cutoff values for FIP and change in nutritional status during hospitalization. We included 431 consecutive patients aged ≥ 65 years who were hospitalized for HF and underwent cardiac rehabilitation (CR) from 2017 to 2019.

Impact of cardiac surgery-associated acute kidney injury on activities of daily living at discharge in elderly cardiac surgery patients.

Cardiac surgery-associated acute kidney injury (CSA-AKI) is a critical complication associated with mortality and morbidity. This study aimed to clarify the impact of CSA-AKI on activities of daily living (ADL) at discharge in elderly cardiac surgery patients. We included 122 cardiac patients who underwent coronary artery bypass surgery, valve surgery, or combined surgery by mid-line incision followed by postoperative cardiac rehabilitation (CR) from March 2015 to May 2020.

Worsening renal function during hospitalization in elderly patients with heart failure: an independent factor of activities of daily living decline.

This study aimed to clarify the effects of worsening renal function (WRF) during hospitalization on activities of daily living (ADL) at discharge of elderly heart failure (HF) patients. We included 323 consecutive patients hospitalized for HF who were prescribed phase I cardiac rehabilitation (CR) from November 2017 to April 2019. WRF was defined as a relative increase from baseline in serum creatinine of 25% or that in serum creatinine ≥ 0.

Factors delaying the progress of early rehabilitation of elderly Japanese patients with heart failure.

Background: Although intervention with early cardiac rehabilitation (CR) is recommended for elderly patients treated for acute heart failure (HF), there are patients in whom the progress of early CR will be delayed. The aim of this study was to clarify factors related to the progress of early CR.

Methods: We enrolled 180 Japanese inpatients aged ≥ 65 years with HF in the present retrospective cohort study.