This study was conducted to assess how extreme obesity affects 30-day mortality in this patient group.
A total of 802 patients who underwent emergency gastrointestinal surgery from January 2007 to December 2017 were retrospectively reviewed. Patients were divided into three groups according to their body mass index (BMI): group 1, normal weight (BMI: 18.5∼22.9 kg/m2); group 2, overweight (BMI: 23.0∼29.9 kg/m2); and group 3, obesity (BMI≥30 kg/m2). Patients with a BMI under 18.5 were excluded from the analysis. Chi-squared test, Fisher’s exact test, Kaplan-Meier survival analysis, and the log-rank test were used to assess and compare 30-day mortality rates between groups.
The mortality rates of group 1, group 2, and group 3 were 11.3%, 9.0%, and 26.9%, respectively (P<0.017). The mortality rate did not differ significantly between group 1 and 2 (11.3% vs. 9.0%; P=0.341), but group 1 and 2 showed better survival rates than group 3 (11.3% vs. 26.9%; P=0.028, 9.0% vs. 26.9%; P=0.011). Kaplan-Meier survival analysis revealed that group 3 had higher mortality than the other two groups (P=0.001).
Obesity (BMI≥30 kg/m2) was one of the risk factors influencing critically ill patients who underwent emergency surgery.
The study examined the effects of early enteral nutrition on the patients’ length of stay in an intensive care unit (ICU), length of stay and mortality rate.
A retrospective design was employed with a total of 461 patients (mean age=69.9±15.6 years; 253 males; 208 females). They were divided into two groups according to when they received enteral feeding: an “early enteral nutrition” (EEN) group of 148 patients (32.1%) who received enteral feeding within 48 hours of their arrival at the hospital and a “delayed enteral nutrition” (DEN) group of 313 patients (67.9%) who received enteral feeding at some point after 48 hours of their arrival at the hospital. The EEN group and control group were similar in terms of age, sex, body mass index, and underlying diseases.
The EEN group’s total length of stay in hospital was shorter (23.29±27.19 days) than that of the control group (36.74±32.24 days); the difference was significant (P<0.001). The EEN group also showed a shorter length of stay in the ICU (13.67±22.77 days) than the DEN group (17.46±21.02 days) and a lower mortality rate (17.6%) than the control group (18.8%), but these differences were not significant.
The study found that early enteral nutrition treatment reduced total length of stay in hospital significantly. The findings suggest that early enteral nutrition treatment plays an important role in the patients’ recovery and prognosis.