Factors associated with anaesthetic complications in bariatric surgery at the Delafontaine Saint-Dénis Hospital

Background and objective. Anaesthesia during bariatric surgery is a high-risk procedure. This study investigated factors associated with anaesthetic complications in patients undergoing this type of surgery at Delafontaine hospital. Methods. This cross-sectional study was conducted at the Delafontaine Hospital from 01/01/2021 to 01/06/2022 in patients who underwent anaesthesia for bariatric surgery for all indications. Sociodemographic, clinical, anaesthetic and evolutionary data were collected and analysed with SPSS 25.0 using Student's t test, Pearson's Chi-square test or Fischer's exact test and logistic regression for p<0.05. Results. One hundred and thirty-five patients were enrolled. Females predominated (sex ratio M/F: 0.35). The mean age was 39.41 (range: 20 to 57 years). The median BMI was 43.25kg/m². All patients underwent surgery under general anaesthesia with tracheal intubation. Complications were present in 44% of patients: arterial hypotension (28.8%), difficult orotracheal intubation (28.1%), desaturation (22.9%), postoperative nausea and vomiting (16.2%), bronchospasm (7.4%), arterial hypertension (6.6%) and anaphylactic shock (3.3%). No deaths were recorded. Older age, the presence of comorbidities and Mallampati, Cormack and ASA scores ≥ 3 were associated with the occurrence of complications. Conclusion. The incidence of peri-anaesthetic complications in bariatric surgery is high in this series. Advanced age (> 40 years), the presence of comorbidities and Mallampati, Cormack and ASA scores ≥ 3 were associated with the occurrence of complications.