Ghost Ileostomy (GI) Versus Loop Ileostomy (LI) After Colorectal Resections

Colorectal Surgery

ghost ileostomy, loop ileostomy, colorectal resection

A Ghost Ileostomy (GI) as an alternative to a diverting protective Loop Ileostomy (LI) after colorectal resection is offered the patients at risk preoperatively. A GI is only applied in cases, who would receive a LI otherwise.

A protective loop ileostomy (LI) is applied to protect a critical anastomosis after left sided colorectal resections. It is routinely indicated after low anterior rectal resection because this location carries a high risk for anastomotic insufficiency due to poor blood supply and tension of the bowel itself. A LI is also used to protect a primary anastomosis after other colorectal resections, if the surgeon in charge deems it necessary. However, the LI does not reduce the rate of insufficiencies (between 8-18%), but decreases the rate and severity of the associated complications and its mortality. Furthermore, the LI is associated with complications of its own. Stoma malfunction due to torsion may cause a bowel obstruction, local complications may lead to an abscess or wound dehiscence, and in the long term follow-up surgical interventions due to hernias at the stoma site or adhesions with a consecutive ileus may become necessary. Additionally, many patients are traumatized by the thought of a stoma. Thus, the routine application of a LI is currently critically discussed and its need re-evaluated. A Ghost ileostomy (GI) is an alternative. Instead of a real diverting stoma the suitable small bowel loop is marked with a silicon strap, which is externalized through the abdominal wall and fixed with sutures. No real stoma outlet needs to be formed. In case of an anastomotic leakage (AL) the GI is easily converted to a LI by extracting the marked bowel loop through the abdominal wall. Besides increasing patients' comfort, ileostomy-related morbidity, hospital re-admissions for the closure of the ileostomy, and health care expenses related to the stoma supply and complications can be avoided. In a recent systematic review of the existing literature Baloyiannis et al. identified 11 studies with altogether 554 patients. They found a total complication rate of 13.9%, with 2,1% GI-specific adverse events. Although it is a safe and comfortable option for low- and medium-risk patients it is still not established routinely. Aim of the study: The study wants to examen whether the routine use of a GI after colorectal resection with primary anastomosis can reduce the number of LI needed. This should avoid the stoma associated complications and the re-hospitalization for the stoma closure. A further endpoint is the routine use of GI as an alternative has to ensure patients safety. No further risk should result from this new intervention. Study design: Prospective clinical observational study Method: All patients after a colorectal resection with a primary anastomosis are offered the option of a GI as an alternative to a LI preoperatively. They have to consent in a stoma, if the surgeon in charge deems this necessary during the procedure. Written informed consent is obtained prior to surgery. At the end of the colorectal resection the surgeon in charge decided whether to shape a GI, a LI or no outlet. General criteria for a stoma are a redo anastomosis, an ultralow rectal resection, peritonitis at the site of the anastomosis, or an extended endometriosis resection in the pelvis. In case of emergency surgery a Hartman procedure may become necessary due to the critical condition of the patient. A GI is only applied in cases, who would have received a LI otherwise. Technically, a silicon loop (Roeser Loops super maxi, Ref No 10.11522; Roeser Medical GmbH, Bochum, Germany; conformity european (CE) 0481) marks a suitable terminal ileum loop and is externalized through the 5 m trocar site regularly placed in the right upper quadrant of the abdomen or a similar mini-incision in cases of open surgery. The loop is fixed with two penetrating, non-absorbable sutures and closed with a wound dressing. Postoperatively patients are observed on the intensive care unit (ICU) for 12-48 hours. Further action - ultrasound, CT scan, and/or colonoscopy - is taken in cases of fever, laboratory signs of inflammation (leucocyte count \>15x1000ul, procalcitonin \>1 ng/ml, or C-reactive protein more than three times the initial value). Pelvic fluid collection, bowel malfunction, or signs of anastomotic leakage will lead to a re-operation converting the GI to a LI and an abdominal lavage with drainage, if necessary. In all other cases of GI the silicon strap will be removed after the initiation of bowel function. All patients included will be asked about their well being and medical treatments related to their colorectal resection after their dismission in a follow-up phone call 6 months after surgery. The study ends with this last survey.

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