Acute kidney injury (AKI) is a syndrome which has a broad range of etiologic factors depending on different clinical settings. Because AKI has significant impacts on prognosis in any clinical settings, early detection and intervention is necessary to improve the outcomes of AKI patients. This clinical guideline for AKI was developed by a multidisciplinary approach with nephrology, intensive care medicine, blood purification, and pediatrics. Of note, clinical practice for AKI management which was widely performed in Japan was also evaluated with comprehensive literature search.
Acute kidney injury (AKI) is a syndrome which has a broad range of etiologic factors depending on different clinical settings. Because AKI has significant impacts on prognosis in any clinical settings, early detection and intervention are necessary to improve the outcomes of AKI patients. This clinical guideline for AKI was developed by a multidisciplinary approach with nephrology, intensive care medicine, blood purification, and pediatrics. Of note, clinical practice for AKI management which was widely performed in Japan was also evaluated with comprehensive literature search.
As the aging of the population progresses in Japan, the nutritional problems in dialysis patients are being highlighted. Frailty is a clinical concept including body weight loss, muscle weakness, fatigability, decreased walking speed, and decreased physical activity, which means an intermediate concept between healthy subjects and disability subjects, indicating that their activities of daily living are not decreased but they cannot smoothly perform housework or exercise. Morbidity of dialysis patients is known to be high, and mortality of dialysis patients with frailty is 3 times higher. Sarcopenia is one of the principal reasons for or triggers of frailty. It is a disease setting showing decreased muscle volume and quality associated with decreased physical function or quality of life. Recent mean age at dialysis therapy induction is getting near to 70 years old in Japan. Japanese dialysis patients who are elderly and present organ failure would have a double risk for sarcopenia. Patients with advanced stages of CKD are generally given protein diet, and it has been reported that a low protein intake in dialysis patients would be a significant risk for developing sarcopenia and increasing mortality. Recently, the focus has been on protein energy wasting (PEW) - an underlying disease condition in sarcopenia or frailty. PEW is an energy wasting condition occurring in dialysis patients, and the cause of PEW is principally decreased food intake and increased catabolism. It has recently been revealed that decreased protein intake would be a risk factor for increased mortality in dialysis patients. The incidence of PEW in dialysis patients is reported to be 14%. To avoid sarcopenia and PEW leading to frailty, we should pay much more attention to an appropriate protein and calorie intake rather than restriction in dialysis patients.
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