Impact of Abdominal Drains on the ERAS Pathway in Peptic Perforation

Overview

This study plans to assess the effect of placement of abdominal drains on the outcomes of ERAS (Enhanced recovery after surgery) protocol in the perioperative management of peptic perforation. In the study arm ERAS protocol will be implemented avoiding use of abdominal drain. In the control arm abdominal drains will be placed in the early post operative period while using the ERAS protocol. The effect of drains on duration of post operative stay and other return to physiological parameter like onset of ambulation, oral intake, passing flatus and feces etc. will be studied. The investigators hypothesize that the non-placement of abdominal drain postoperatively will not have worse outcomes than in cases where it is used postoperatively, in terms of length of hospital stay. .

ERAS is a an evidence based perioperative care pathways aiming reduction in the surgical stress. ERAS is a an evidence based perioperative care pathways aiming reduction in the surgical stress. Studies assessing the outcome of non usage to abdominal drains on the post-operative outcomes are scarce. This study aims to study the influence of abdominal drains on the post operative hospital stay and other functional outcomes. Methods Patient with hollow viscus perforation to the emergency rooms and diagnosed to have peptic ulcer perforation intraoperatively will be included in the study. After omental patch repair and completion of operative procedure, patient will be randomized into drain group and no drain group based on the random allocation software. Preoperative Early identification of physiological derangement and intervention. Early identification of physiological derangement and intervention. Early identification of physiological derangement and intervention. Early imaging , surgery and source control of sepsis. Risk assessment - PULP (Peptic Ulcers Perforation) score, Mannheim peritonitis index score, Boey score. Intraoperatively Short acting anesthesia agents. warm normal saline lavage. Omental patch repair. Bilateral rectus sheath block. Bilateral rectus sheath block. Peritoneal fluid for culture and sensitivity. Mucosal edge / pinch biopsy to rule out any malignancy. Post operative nausea and vomiting (PONV) prophylaxis Balanced intravenous fluid administration. Post operatively Immobilization, Oral intake, Intravenous nutrition after study, Removal of nasogastric tube, Removal of catheter. Intervention Abdominal drain group with ERAS protocol and no abdominal drain group with ERAS protocol. Sample size calculation Sample size is calculated using "R". A sample size of 76 (38 per group) was calculated with the study powered at 90 percent, to prove that the no abdominal drain group is non inferior compared to the abdominal drain group in terms of length of hospital stay. The clinically relevant non inferiority margin was assumed is one day. The alpha error assumed 0.05 ( mention about loss to follow up. The pooled Standard deviation (SD) taken from previous study (done at our institute by Mishra TS et al) 1.5. Assuming a loss to follow up of 15 percent. The ultimate sample size was calculated to be 76+11=87. 87 cases will be taken on the whole to ensure equal distribution in both arms. Recruitment will be stopped at 76 cases along with necessary follow up or at 87 including loss to follow up which ever is achieved earlier.