ObjectiveTo explore the value of sarcopenia index (SI) in the diagnosis of malnutrition in colorectal cancer patients.MethodsA retrospective study was carried out to study on 126 colorectal cancer patients who underwent chemotherapy in West China Hospital of Sichuan University between January 2015 and June 2019. SI and body mass index (BMI) were used for malnutrition diagnosis, and the detection rate of malnutrition was compared.ResultsThe detection rate of malnutrition diagnosed by SI (92.1%) was higher than that by BMI (38.1%) with a statistical difference (P<0.001). Subgroup analysis showed: the detection rate of malnutrition diagnosed by SI vs. BMI in male patients was 97.0% vs. 28.4%, with a statistical difference (P<0.001), and that in female patients was 86.4% vs. 49.2%, with a statistical difference (P<0.001); the detection rate of malnutrition diagnosed by SI vs. BMI in elderly patients (≥65 years) was 92.6% vs. 27.8%, with a statistical difference (P<0.001), and that in young and middle-aged patients (<65 years) was 91.7% vs. 45.8%, with a statistical difference (P<0.001).ConclusionUsing SI to diagnose malnutrition for colorectal cancer patients is worth popularizing for it can discover hidden malnutrition patients.
ObjectiveTo study the differences in body composition between maintenance hemodialysis (MHD) patients with reduced muscle mass and the ones with normal muscle mass by bioelectrical impedance analysis, and explore the influencing factors.MethodsA total of 122 patients undergoing MHD in the hemodialysis center of a general hospital between September 2018 and May 2019 were selected as the research subjects. According to the relative skeletal muscle mass index, they were divided into the muscle loss group and the normal muscle mass group. Their general conditions, post-dialysis body composition, and serum albumin were collected to analyze the differences between the two groups, and a multiple stepwise logistic regression analysis was carried out.ResultsAmong the included subjects, 53 patients had normal muscle mass and 69 patients had muscle mass loss. The post-dialysis body weight, muscle-related indexes, intracellular water, extracellular water (ECW), total body water (TBW), protein, minerals, body cell mass, bone mineral content, body mass index, arm circumference, and arm muscle circumference in the normal muscle mass group were higher than those in the muscle loss group (P<0.05); the percentage of ECW/TBW in the normal muscle mass group was lower than that in the muscle loss group (P<0.05). The multiple stepwise logistic regression analysis showed that the post-dialysis weight [odds ratio (OR)=0.679, 95% confidence interval (CI) (0.535, 0.862), P=0.001] was a protective factor from losing muscle in MHD patients, and the high ECW/TBW [OR=6.926, 95%CI (1.014, 47.280), P=0.048], low body cell mass [OR=57.707, 95%CI (6.927, 480.761), P<0.001], low bone mineral content [OR=9.743, 95%CI (1.220, 77.831, P=0.032], and arm circumference [OR=2.183, 95%CI (1.004, 4.749), P=0.049] were risk factors for muscle loss in MHD patients.ConclusionsMHD patients have a high incidence of muscle loss. It is necessary to monitor the changes of their body composition, especially those who with low post-dialysis body weight, lack of bone minerals and body cells, excessive ECW/TBW, and increased arm circumference after hemodialysis. Both nutritional interventions and exercise interventions should be performed timely and routinely to prevent the occurrence of sarcopenia.