Perioperative Factors Influencing Outcome in Palliative Cancer Surgery at a Tertiary Cancer Care Institute in Northeast India- A Retrospective Study

Introduction: Surgical palliation of malignancy is defined best as a procedure used with the primary intention of improving Quality of Life (QoL) or relieving symptoms caused by an advanced malignancy. Surgical procedures for palliation include resections, reconstruction, functional repairs, drainage, and biopsy. Primary benefits include QoL improvement through symptom prevention or control, with survival advantage as a secondary benefit. Aim: To evaluate mortality (30 days and 6 months), length of hospital stay and Intensive Care Unit (ICU) stay and QoL among patients undergoing palliative surgery for advanced cancer. Materials and Methods: A retrospective study was conducted at Dr. B. Borooah Cancer Institute, India, from September 2020 to March 2021. The clinicodemographic profile, tumour type and staging, treatment, investigations, surgery, anaesthesia and complications were studied. The outcome was defined by mortality, length of hospital stay and quality of life. Descriptive statistics was used for analysis. A p-value of less than 0.05 was considered significant at 5% level of significance. Results: A total of 86 patients underwent palliative surgeries, out of which 52 (60.5%) were females and 34 (39.5%) were males with the mean age of 49.6±15.9 years. Among them, 8 (9.3%) died within 30 days of surgery and 11 (12.8%) at six months after surgery. There was a significant association of mortality with pallor, deranged Thyroid Stimulating Hormone (TSH), co-morbidities, chemotherapy, type of surgery and anaesthesia but not with age, sex, type and stage of cancer, American Society of Anaesthesiology (ASA) status and General Condition (GC) of the patient. The mean duration of postoperative hospital stay was 15.8 days and mean ICU stay was 0.8 day for all patients. Patients with pallor had longer duration of hospital and ICU stay. Type of surgery was significantly associated with hospital stay but not with ICU stay. On evaluating the quality of life using Eastern Cooperative Oncology Group (ECOG) score, it was seen that the number of patients with poor ECOG scores (3 to 5) increased significantly from 10 (11.63%) to 13 (15.12%) in the immediate postoperative period. Conclusion: Patient factors affected the outcome after palliative surgery more than surgical and anaesthetic factors. The high mortality rate of 12.8% warrants detailed prospective studies in the future.