• M Vieito Amor, J Hernández Iniesta, X Santiveri, Ch García, P Maestre, A Villalonga, and B Ruiz.
• Servicio de Anestesiología, Reanimación y Terapéutica del dolor, Hospital Universitario Dr. Josep Trueta Carretera de Francia, s/n. 17007 Girona.
• Rev Esp Anestesiol Reanim. 2002 Aug 1; 49 (7): 365-72.

ObjectiveTo identify the factors predicting morbidity and mortality in patients undergoing bariatric surgery for morbid obesity in our hospital.MethodSixty bariatric surgery patients whose body mass indexes (BMI) exceeded 35 kg.m-2 were studied retrospectively. We examined the incidence of associated disease, the perioperative period, type of surgery, anesthetic technique, postoperative analgesia and the incidence of major complications.ResultsFifty-one women and 9 men (mean age 43.33 +/- 10.25 years, mean BMI 46.41 +/- 6.04 kg/m-2) were studied. The incidences of high blood pressure (55%) and obstructive sleep apnea syndrome (40%) were high. Nine patients (15%) were physical status (ASA) I, 18 (30%) were ASA II, 27 (45%) were ASA III and 6 (10%) were ASA IV. Major complications developed in 3 cases (5%) in the first 24 h and in 8 (13.33%) in the first 7 days. The mortality rate was 0% among ASA I and II patients, 3.7% (1 death) among ASA III patients, and 33.33% (2 deaths) among ASA IV patients. All who died were men. The only factor that predicted morbidity in the first week after surgery was BMI. Both morbidity in the first 24 h and mortality were associated with greater underlying disease in our patients undergoing bariatric surgery.ConclusionMajor complications of bariatric surgery occurred in 18.3% of our patients and mortality was 5%. Physical status was a prognostic factor for both early (24 h) postoperative morbidity and mortality in our morbidly obese patients, whereas BMI was related to morbidity during the first week after surgery.

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