External validation of surgical risk assessment tool(SORT) in predicting perioperative mortality in patients undergoing exploratory laparotomy surgery at an Indian tertiary care center and its possible feasibility in predicting postoperative morbidity.

Single centre, Prospective, observational - longitudinal, Non-randomized. All the patients undergoing exploratory laparotomy participate in this study. This study will be conducted in Department of General Surgery, Department of Gastrointestinal surgery and Department of Surgical Oncology, Kasturba hospital, Manipal. The purpose of study is to externally validate- SORT(surgical outcome risk tool) in predicting post operative mortality in exploratory laparotomy based on following tool parameters â€“ procedure code, operation severity, American Society of Anaesthesiologists’ physical status classification (ASA), clinical urgency, surgical site (thoracic, gastrointestinal or vascular surgery), cancer (active malignancy within the last 5 years) and age, all of which are available pre-operatively.

After patients have consented for this study, we will extract and included demographic data and clinical data.

We will also follow-up on, intra-op findings, postoperative clinicaland laboratory details during hospital stay on day-1, day-3, day-7, day 10 and day of discharge. If patient is discharged before 30 days post-op period, we’ll be following up via telephonic conversation on post-op 30th day regarding general condition of patient. We’ll define mortality as any patient death that occurring during the first 30 days or during the hospital stay if longer than 30 days. The predicted risk of mortality will be calculated using the SORT models.

And same scores will be used to check SORT’s very feasibility in predicting postoperative morbidity in patients undergoing same procedure.