Introduction: Early mobilization after cancer surgery is generally recommended. However, the effects of postoperative resistance exercise during a hospital stay have been rarely investigated. This study aimed to clarify the effects of resistance exercise after laparoscopic surgery on exercise tolerance and skeletal muscle mass in geriatric patients with gastrointestinal cancer.Methods: This single-center retrospective observational study included patients with gastrointestinal cancer who admitted for laparoscopic surgery. Exercise tolerance and skeletal muscle mass were assessed using a six-minute walking test (6MWT) and skeletal muscle index (SMI) at admission and discharge, respectively. Intergroup comparisons of absolute changes in 6MWT and SMI were analyzed by the unpaired t-test or Mann-Whitney U test according to whether resistance exercise was performed or not. Multivariable linear regression analyses were used to analyze the association of resistance exercise with changes in 6MWT and SMI. The analyses were adjusted for age, sex, cancer stage, postoperative complication, and preoperative exercise tolerance and skeletal muscle mass.Results: Altogether, 66 patients (mean age 69.9 years; 60.6% men) were recruited. Of them, 72.7% performed the resistance exercise and started at a median of 4.5 postoperative days. There were no significant intergroup differences in absolute changes in the 6MWT and the SMI (p = 0.153, p = 0.476, respectively). Multivariable linear regression analysis showed that resistance exercise was independently and positively associated with the 6MWT at discharge (β = 1.70, 95% confidence interval, 1.88 to 71.09) and did not significantly contribute to the SMI at discharge (95% confidence interval, -0.21 to 0.27). Conclusion:Resistance exercise may enhance the improvement in postoperative exercise tolerance in geriatric patients with gastrointestinal cancer who underwent laparoscopic surgery.
Malnutrition is a common complication in patients with tongue cancer who experience dysphagia and can steadily lead to skeletal muscle atrophy. Additionally, skeletal muscle loss commonly occurs in patients after invasive surgery. Therefore, patients with tongue cancer are at high risk of skeletal muscle atrophy during the perioperative phase of treatment. Over time, physical and nutritional therapy are expected to increase skeletal muscle mass and improve nutritional status. However, immediate benefits for patients in the perioperative phase of treatment are largely unknown. This case report aimed to evaluate the combined effects of physical and nutritional therapy for a patient in the perioperative phase of treatment for tongue cancer. We describe a 48-year-old woman diagnosed with tongue cancer. Her increasing difficulty with eating and swallowing led to malnutrition. After hospital admission for oral surgery, physical and nutritional therapy were initiated. Skeletal muscle mass measured by body composition analyzer and ultrasound apparatus showed increases, whereas blood tests to indicate nutritional status showed no improvement. This case suggests that physical and nutritional therapy are effective for increasing skeletal muscle during perioperative phase treatment in malnourished patients with tongue cancer and assessment of skeletal muscle mass is a reliable method for clinical evaluation.
Introduction: Significant skeletal muscle loss occurs commonly after cancer surgery; however, the impact of postoperative acute skeletal muscle loss on physical function remains poorly understood. Objective: To determine the impact of surgery-associated acute skeletal muscle wasting on physical function in the early postoperative period in patients with gastrointestinal cancer. Design: A single-center retrospective observational study. Setting: General hospital. Patients: Hospitalized patients with gastrointestinal cancer who were admitted for surgery. Intervention: Not applicable. Main Outcome Measures: The main outcome was the partial correlation between postoperative changes in skeletal muscle index (SMI) and physical function such as handgrip strength, gait speed, and 6-minute walk test. Results: A total of 69 patients (41 male and 28 female) with a mean age of 70.5 years were included. SMI was significantly correlated with physical function, such as handgrip strength (r = 0.757, p < .001), maximum gait speed (r = 0.318, p = .008), and 6-minute walk test (r = 0.365, p = .002) before surgery. In contrast, partial correlation analysis between the absolute changes in SMI and physical function after controlling for SMI and each physical function before surgery showed no significant correlation. Multivariable linear regression analyses also showed that postoperative change in SMI was not significantly associated with the postoperative change in physical function but it was associated with the length of stay after surgery, SMI at admission, and absolute change in body fat percentage. Conclusions: The absolute change in SMI during the early postoperative period was not linearly correlated with the degree of decline in physical function. Further studies are necessary to investigate the effects of the respective changes in skeletal muscle mass and physical function on clinical outcomes.
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