Pre- and postoperative respiratory muscle strength, body mass index and fasting glucose profile of patients with type 2 diabetes mellitus submitted to metabolic surgery

Abstract Introduction: The lung is considered a target organ in diabetes mellitus as a consequence of alterations secondary to chronic hyperglycemia that compromise respiratory muscle strength. Metabolic surgery for improving diabetes mellitus has beneficial effects on weight loss and glucose metabolism. Objective: The objective of this study was to evaluate the respiratory muscle strength, assessed by MIP and MEP, body mass index (BMI) and fasting glucose profile of patients with type 2 diabetes mellitus before and after metabolic surgery without gastric resection. Method: Seventeen patients with type 2 diabetes mellitus participated in the study. The participants had a mean age of 44.8 ± 11.81 years. Results: The results showed a significant decrease of MEP values in the immediate postoperative period when compared to the preoperative period (p=0.001), while no significant results were obtained for MIP. Regarding BMI and fasting glucose, significant weight loss and a significant reduction in fasting glucose levels were observed in the late postoperative period (p=0.006 and p=0.007, respectively). Conclusion: The MIP and MEP were reestablished and satisfactory results were obtained for BMI and fasting glucose in the late postoperative period. Further studies are needed to monitor patients in the pre- and postoperative period of metabolic surgery, identifying complications and acting on the care and recovery of these patients.