A Preliminary Study of the Correlation between Lower Limb Muscle Status and the Frailty State of Elderly Patients
Objective:Analysing the correlation between lower limb muscle status and frailty in elderly male patients.Methods:50 elderly male patients undergoing transurethral resection of the prostate were selected.The Fried scale was used to evaluate the degree of frailty.According to the evaluation results,the patients were divided into two groups,23 cases in the frailty group and 27 cases in the non-frailty group.Ultrasound was used to measure the thickness and cross-sectional area of the rectus femoris of the dominant lower limbs,and the feather angle of the medial head of the gastrocnemius muscle.The general data,laboratory examination and perioperative data were recorded.The related variables of frailty were analyzed by univariate and multivariate logistic regression.Results:Compared with the non-frailty group,the frailty group had older age,lower BMI,smaller rectus femoris thickness,smaller medial head of gastrocnemius pinnate angle,lower albumin and hemoglobin,more intraoperative blood loss,more use of vasoactive drugs,and longer postoperative hospital stay.Univariate logistic regression analysis showed that age＞70 years(OR=5.667),BMI(OR=0.578),rectus femoris thickness(OR=0.035),medial head of gastrocnemius pinnate angle(OR=0.399),hemoglobin(OR=0.944),albumin(OR=0.853),length of hospital stay(OR=1.265),blood loss(OR=1.111)were associated with frailty.Multivariate logistic rcgression analysis showed that the feather angle of the medial head of the gastrocnemius muscle and BMI could be used as predictors of frailty in elderly male patients.The area under the ROC curve was 0.880,and the sensitivity and specificity were 91.30％and 74.07％,respectively.Conclusion:Age,BMI,rectus femoris thickness,medial head of gastrocnemius feather angle,hemoglobin,albumin,length of hospital stay,and blood loss were associated with frailty in elderly male patients.The feather angle of the medial head of the gastrocnemius muscle combined with BMI has predictive value for frailty in elderly male patients.
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