Anzeige
Erschienen in:
06.02.2019 | Thoracic Oncology
Impact of Preoperative Skeletal Muscle Mass and Nutritional Status on Short-and Long-Term Outcomes After Esophagectomy for Esophageal Cancer: A Retrospective Observational Study
Impact of Psoas Muscle Mass and Body Mass on Esophagectomy
Erschienen in: Annals of Surgical Oncology | Ausgabe 5/2019
Einloggen, um Zugang zu erhaltenAbstract
Background
Preoperative muscle volume and body mass index (BMI) are associated with postoperative outcomes. Because esophagectomy for esophageal cancer (EC) is associated with high morbidity and because EC has a poor prognosis, this study investigated the association of preoperative skeletal muscle mass and nutritional status with postoperative outcomes.
Methods
The study analyzed 483 patients who underwent esophagectomy from 2009 to 2012. The cross-sectional area of the psoas muscle index (PMI) was measured at the third lumbar vertebral level using computed tomography. Clavien–Dindo classifications were used to analyze postoperative complications. Because skeletal muscle mass varies according to sex, all analyses were performed accordingly (390 males, 93 females).
Results
For male patients, BMI was a significant multivariate factor, and PMI, a univariate factor, predicted postoperative complications and overall survival (OS). Using a preoperative nutritional and muscular (PNM) score derived from BMI and PMI results (patients were allocated 1 point if their BMI was < 18.5 kg/m2 and 1 point if their PMI was < 600 mm2/m2, for a possible maximum total of 2 points), male patients were categorized as high risk (score 2), moderate risk (score 1), or low risk (score 0). In the low-risk group, anastomotic leakage was significantly less (p = 0.01), and the 3-year OS was significantly better (p < 0.01). On the other hand, in female patients, neither BMI nor PMI was a significant factor for postoperative outcomes.
Conclusions
For male patients, the PNM score is a promising tool for predicting postoperative outcomes and identifying patients requiring preoperative nutritional intervention and rehabilitation.