Abstract Presenting Author Email: ruthblancocolino@gmail.com Research question To explore current practices on the use of prophylactic postoperative drains in colorectal surgery and whether it influences 30-day postoperative outcomes. Background and aim Traditionally, postoperative drains have been used in colorectal surgery for the prevention or early detection of intraabdominal collections. However, current evidence suggests there is no clear clinical benefit to prophylactic drain placement following colorectal surgery, and Enhanced Recovery After Surgery (ERAS) guidelines recommend against their routine use. Nevertheless, a previous international audit by Eurosurg (Ileus Management International) found more than a third of participating centres routinely placed a drain in more than half of their patients. Therefore, this study aims to audit compliance to ERAS guidelines regarding the use of postoperative drains in colorectal surgery. Design Patients Adult patients undergoing elective and emergency colorectal surgery will be included. Procedures under any surgical approach including any formation of colostomy or ileostomy, resection of large bowel, or reversal of stoma will be eligible. Patients undergoing appendicectomy, transanal surgery, primarily urological, gynaecological or vascular procedure, surgery involving multivisceral resection, diagnostic laparotomy or laparoscopy or hernia surgery without colorectal resection, will be excluded. Comparator Group of patients receiving a prophylactic drain after surgery. Main explanatory variable will be intrabdominal collections rate including anastomotic leak. Outcomes The primary outcome measure will be the adherence to selected ERAS guidelines regarding rate of routine prophylactic drain insertion in colorectal surgery. As Secondary outcome measures we will assess: • Rate of intra-abdominal postoperative collections, defined as collections which alter the normal postoperative course (e.g. requiring either medical, radiological, endoscopic or surgical intervention). • Time-to-diagnosis (days) of intra-abdominal postoperative collections defined as collections which alter the normal postoperative course. • Rate of drain-related complications defined as: surgical site infection by Centers for Disease Control and Prevention definition; cutaneous irritation at the drain insertion site; small bowel evisceration and herniation of omentum, bowel injury (defined as intraoperative identification of or CT-proven drain-related iatrogenic bowel perforation); time (measured in whole days) until drain removal and drain output (quantity and contents) on day of removal; and overall 30-day adverse event rate as defined by the Clavien-Dindo scale of postoperative complications and length of stay (days). Study design This is a prospective, multicentre, audit that will be conducted through the student- and trainee-led EuroSurg collaborative network across Europe, South Africa and Australasia. Data will be collected on consecutive 14-day periods, from 3rd February to 26th April 2020, with 30-day follow-up on included patients. Data will be collected online on REDCap database based on Birmingham University. Team and infrastructure The study will be run by the European Student Research Collaborative. EuroSurg is a pan-European student- and trainee-led surgical which also counts with international collaboration from Australia, New Zealand and South Africa. The study will be coordinated by the International Study Management Group and at each participating country, there will be a core of national leads or national collaborative in charge of organising the study locally. Each hospital will count with a Local Lead who will coordinate the mini-teams based at their centre and will be in contact with its corresponding National Leads. A mini-team will be composed by three collaborators collecting data and a supervising consultant per centre. As infrastructure for leading the project, we will use social media for study diffusion including Twitter, Facebook, Instagram and LinkedIn, and emails through Gmail official account and Mailchimp. Management group communications will be held through WhatsApp, Slack and Skype.
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