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| Name | Class |
|---|---|
| McMaster Surgical Associates | OTHER |
Post-operative ileus is a common complication following abdominal surgery. It results in abdominal distension, nausea and vomiting as well as abdominal pain. Furthermore, this results in prolonged hospital stay and occasionally readmission following abdominal surgery.The etiology of post-operative ileus is multifactorial and studies evaluating potential treatment options are abundant, though few reliable interventions exist. This study proposal describes a double-blinded randomized controlled trial investigating the effect of simethicone on post-operative ileus in patients undergoing colorectal surgery.
Simethicone is an orally administered anti-foaming agent comprised of polydimethylsiloxane and hydrated silica gel. Its leads to the coalescence of gas bubbles in the intestinal tract, facilitating its emission. To date, there are no contemporary studies evaluating the efficacy of simethicone on POI in patients undergoing colorectal surgery.
The proposed study is a pilot double-blinded randomized controlled trial of simethicone versus placebo in patients undergoing colorectal surgery. Starting on postoperative day one, patients in the experimental arm of the study will receive, in a blinded fashion, 160mg of simethicone orally four times a day for the first five postoperative days. Patients assigned to the control arm will receive a placebo agent orally with the same frequency and duration.
All consenting patients over the age of 18 undergoing elective, abdominal colorectal surgery involving bowel resection with or without re-anastomosis at either the Juravinski Hospital and Cancer Center or St. Joseph's Hospital in Hamilton, Ontario will be enrolled. This will include patients undergoing both open and laparoscopic surgery.
Patients will be prospectively evaluated by a trained research assistant on a daily basis while in hospital. Passage of flatus, bowel movements, and postoperative pain will be evaluated at those visits. A two-week, and 30-day phone call to patients discharged from hospital will be done to assess for outcomes after discharge. Follow-up will end after the 30th postoperative day.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Simethicone, OVOL | Experimental | Patients in the intervention arm will receive, in a blinded fashion, 160mg of simethicone orally four times a day for the first five postoperative days. Patients will be evaluated by a trained research assistant on a daily basis while in hospital. Passage of flatus, bowel movements, and postoperative pain will be evaluated at those visits. A two-week, and 30-day phone call to patients discharged from hospital will be done to assess for outcomes after discharge. Follow-up will end after the 30th postoperative day. |
|
| Oral Suspending Vehicle, Ora-Plus | Placebo Comparator | Patients in the control arm will receive, in a blinded fashion, 160mg of the placebo orally four times a day for the first five postoperative days. The placebo will be prepared by pharmacy to be identical to the test drug formulation except for being pharmacologically inert. Patients will be evaluated by a trained research assistant on a daily basis while in hospital. Passage of flatus, bowel movements, and postoperative pain will be evaluated at those visits. A two-week, and 30-day phone call to patients discharged from hospital will be done to assess for outcomes after discharge. Follow-up will end after the 30th postoperative day. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Simethicone | Drug | Pharmacological category: antiflatulent 160mg Simethicone orally, 4 times a day for the first five postoperative days |
|
| Measure | Description | Time Frame |
|---|---|---|
| time to first passage of flatus | passage of flatus (measured in hours) is considered an acceptable sign of the return of gut function and a criterion for discharge from hospital (bowel movement is not) | participants will be followed for the duration of their hospital stay, an expected average of 7 days |
| Measure | Description | Time Frame |
|---|---|---|
| time to first bowel movement | participants will be followed for the duration of their hospital stay, an expected average of 7 days | |
| length of hospital stay | participants will be followed for the duration of their hospital stay, an expected average of 7 days |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Shawn S Forbes, MD, MSc | McMaster University | Principal Investigator |
| Cagla Eskicioglu, MD, MSc | McMaster University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| St. Joseph's Healthcare Hamilton | Hamilton | Ontario | L8N 4A6 | Canada | ||
| Juravinski Hospital |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 22414412 | Background | Doorly MG, Senagore AJ. Pathogenesis and clinical and economic consequences of postoperative ileus. Surg Clin North Am. 2012 Apr;92(2):259-72, viii. doi: 10.1016/j.suc.2012.01.010. | |
| 19590205 | Background | Story SK, Chamberlain RS. A comprehensive review of evidence-based strategies to prevent and treat postoperative ileus. Dig Surg. 2009;26(4):265-75. doi: 10.1159/000227765. Epub 2009 Jul 3. |
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| ID | Term |
|---|---|
| D045823 | Ileus |
| D015746 | Abdominal Pain |
| D005414 | Flatulence |
| D011183 | Postoperative Complications |
| ID | Term |
|---|---|
| D007415 | Intestinal Obstruction |
| D007410 | Intestinal Diseases |
| D005767 | Gastrointestinal Diseases |
| D004066 | Digestive System Diseases |
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| ID | Term |
|---|---|
| D012841 | Simethicone |
| D005079 | Excipients |
| ID | Term |
|---|---|
| D004129 | Dimethylpolysiloxanes |
| D012828 | Silicones |
| D012833 | Siloxanes |
| D017646 | Organosilicon Compounds |
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| Oral Suspending Vehicle | Drug | ORA-Plus is an aqueous-based vehicle. Identical to the test drug formulation except for being pharmacologically inert. 160mg Ora-Plus orally, 4 times a day for the first five postoperative days |
|
|
| postoperative pain | measured using the Visual Analogue Scale for pain | participants will be followed for the duration of their hospital stay, an expected average of 7 days |
| postoperative narcotic requirements | participants will be followed for the duration of their hospital stay, an expected average of 7 days |
| incidence of postoperative vomiting | participants will be followed for the duration of their hospital stay, an expected average of 7 days |
| incidence of postoperative complications | including but not limited to wound and anastomotic occurences, bleeding, infections, readmission to hospital, death, etc. | within the first 30 days (plus or minus 3 days) after surgery |
| Hamilton |
| Ontario |
| L8V 1C3 |
| Canada |
| 11755891 | Background | Kehlet H, Holte K. Review of postoperative ileus. Am J Surg. 2001 Nov;182(5A Suppl):3S-10S. doi: 10.1016/s0002-9610(01)00781-4. |
| 17909274 | Background | Senagore AJ. Pathogenesis and clinical and economic consequences of postoperative ileus. Am J Health Syst Pharm. 2007 Oct 15;64(20 Suppl 13):S3-7. doi: 10.2146/ajhp070428. |
| 21730280 | Background | Barletta JF, Asgeirsson T, Senagore AJ. Influence of intravenous opioid dose on postoperative ileus. Ann Pharmacother. 2011 Jul;45(7-8):916-23. doi: 10.1345/aph.1Q041. Epub 2011 Jul 5. |
| 15357847 | Background | Sternini C, Patierno S, Selmer IS, Kirchgessner A. The opioid system in the gastrointestinal tract. Neurogastroenterol Motil. 2004 Oct;16 Suppl 2:3-16. doi: 10.1111/j.1743-3150.2004.00553.x. |
| 15357852 | Background | Bauer AJ, Boeckxstaens GE. Mechanisms of postoperative ileus. Neurogastroenterol Motil. 2004 Oct;16 Suppl 2:54-60. doi: 10.1111/j.1743-3150.2004.00558.x. |
| 20228654 | Background | Hocevar BJ, Robinson B, Gray M. Does chewing gum shorten the duration of postoperative ileus in patients undergoing abdominal surgery and creation of a stoma? J Wound Ostomy Continence Nurs. 2010 Mar-Apr;37(2):140-6. doi: 10.1097/WON.0b013e3181d0b92b. |
| 4600627 | Background | Danhof IE, Stavola JJ. Accelerated transit of intestinal gas with simethicone. Obstet Gynecol. 1974 Jul;44(1):148-54. No abstract available. |
| 4937581 | Background | Gibstein A, Cooper JJ, Wisot AL, Rosenthal AH. Prevention of postoperative abdominal distention and discomfort with simethicone. Obstet Gynecol. 1971 Sep;38(3):386-90. No abstract available. |
| 17710495 | Background | Chan MK, Law WL. Use of chewing gum in reducing postoperative ileus after elective colorectal resection: a systematic review. Dis Colon Rectum. 2007 Dec;50(12):2149-57. doi: 10.1007/s10350-007-9039-9. |
| 18722937 | Background | Forbes SS, Stephen WJ, Harper WL, Loeb M, Smith R, Christoffersen EP, McLean RF. Implementation of evidence-based practices for surgical site infection prophylaxis: results of a pre- and postintervention study. J Am Coll Surg. 2008 Sep;207(3):336-41. doi: 10.1016/j.jamcollsurg.2008.03.014. Epub 2008 May 19. |
| 21596413 | Background | Eskicioglu C, Gagliardi A, Fenech DS, Victor CJ, McLeod RS. Can a tailored knowledge translation strategy improve short term outcomes? A pilot study to increase compliance with bowel preparation recommendations in general surgery. Surgery. 2011 Jul;150(1):68-74. doi: 10.1016/j.surg.2011.02.010. Epub 2011 May 18. |
| D010146 | Pain |
| D009461 | Neurologic Manifestations |
| D012816 | Signs and Symptoms |
| D013568 | Pathological Conditions, Signs and Symptoms |
| D012817 | Signs and Symptoms, Digestive |
| D010335 | Pathologic Processes |
| D009930 |
| Organic Chemicals |
| D011108 | Polymers |
| D046911 | Macromolecular Substances |
| D001697 | Biomedical and Dental Materials |
| D008420 | Manufactured Materials |
| D013676 | Technology, Industry, and Agriculture |
| D014677 | Pharmaceutical Vehicles |
| D010592 | Pharmaceutic Aids |
| D004364 | Pharmaceutical Preparations |
| D020313 | Specialty Uses of Chemicals |
| D020164 | Chemical Actions and Uses |