Study of Unsutured Versus Sutured Closure of Rectal Defects After Rectal Lesion Excisions Using Transanal Endoscopic Microsurgery
NCT ID: NCT01465945
Last Updated: 2014-07-22
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
NA
50 participants
INTERVENTIONAL
2012-03-31
2013-10-31
Brief Summary
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Leaving the defect open to close naturally has some possible advantages, including shortened operation time and similar rates of postoperative complications. However, there is some concern that not surgically closing the defect may lead to more postoperative pain and delay in recovery.
The study will be a double blind randomized controlled trial and determine whether patients who have rectal wall defect sutured closed have less post-operative pain compared to patients whose defect is left open.
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Detailed Description
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Background Transanal Endoscopic Microsurgery (TEM) is an advanced minimally invasive endoluminal technique used to remove rectal tumours. In the open transanal excision era, there is evidence that outcomes in unsutured rectal defects are similar to those in patients whose defect is closed. However, the evidence for this approach is minimal and technical differences in TEM (e.g. rectal insufflation) may mean that leaving defects unsutured is not a safe approach. Further, there is anecdotal evidence that unsutured defects lead to more postoperative pain and delay recovery.
Objective The purpose of this study is to determine if postoperative pain (primary) and early postoperative complications (secondary) are worse in patients undergoing TEM and do not have the defect closed when compare to similar patients who have endoluminal suture closure of the defect.
Methods This is a multicentre, double blind randomized controlled trial of suture closure versus no closure in patients treated by TEM for rectal lesions. The study will include patients 18 years and older with rectal lesions within 12cm of the anal verge treated with TEM. The primary outcome is postoperative pain as measured by validated visual analogue scale (VAS). Secondary outcomes include analgesic use and early (\<30 day) complications. Based on anticipated VAS scores, a sample size of 38 patients will be enrolled (power 0.80, α=0.05). Statistical analysis will be performed using student's T test for continuous data and Fischer's exact test for dichotomous variables.
Impact Currently, only 3 centres in Canada have experience with TEM: Vancouver, Winnipeg and Ottawa. This study represents the first trial of a Canadian TEM Collaborative and will determine if there is an advantage to suture closure of the rectal defect in TEM surgery. This is important, as suture technique is challenging and if there are important advantages to this approach, there would be a mandate to perfect suturing technique before employing the TEM approach to rectal tumours. Conversely, if there is an advantage to leaving the defect unsutured, this may reduce operative time and facilitate better use of OR time. Further, it will inform all TEM surgeons of the best approach to the rectal defect and optimize patient care. Finally, this study will serve as a starting point for further trials by the Canadian TEM Collaborative that will expand to include new sites and become a world leader in TEM clinical trials.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
DOUBLE
Study Groups
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Rectal Defect Sutured
The subject will have his/her defect sutured after the rectal tumors have been removed.
Defect Sutured
Defect is sutured after the rectal tumor has been removed by TEM.
Rectal Defect Unsutured
The defect will be left open and let naturally close after the rectal tumor has been removed by TEM.
Defect Unsutured
The defect is not sutured after the rectal tumor is removed by TEM.
Interventions
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Defect Unsutured
The defect is not sutured after the rectal tumor is removed by TEM.
Defect Sutured
Defect is sutured after the rectal tumor has been removed by TEM.
Eligibility Criteria
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Inclusion Criteria
Exclusion Criteria
* The surgeon judges that the rectal defect is not appropriate for suturing (e.g. too large) or to be left unsutured (e.g. entry into peritoneal cavity)
* The patient is currently treated for chronic pain prior to surgery, has a known bleeding diathesis (e.g. warfarin treatment, hemophilia, etc) or is immunosuppressed (e.g. Prednisone, HIV,etc)
18 Years
ALL
No
Sponsors
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Canadian Society of Colon and Rectal Surgeons
OTHER
Dr. Carl J Brown
OTHER
Responsible Party
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Dr. Carl J Brown
Head, Division of General Surgery, clinical assistant professor of surgery at University of British Columbia
Principal Investigators
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Carl J Brown, MD, MSc
Role: PRINCIPAL_INVESTIGATOR
Saint Paul's Hospital
Locations
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Saint Paul's Hospital
Vancouver, British Columbia, Canada
Vancouver General Hospital
Winnipeg, Manitoba, Canada
The Ottawa Hospital
Ottawa, Ontario, Canada
Countries
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References
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McCourt M, Armitage J, Monson JR. Rectal cancer. Surgeon. 2009 Jun;7(3):162-9. doi: 10.1016/s1479-666x(09)80040-1.
Buess G, Hutterer F, Theiss J, Bobel M, Isselhard W, Pichlmaier H. [A system for a transanal endoscopic rectum operation]. Chirurg. 1984 Oct;55(10):677-80. No abstract available. German.
Allaix ME, Arezzo A, Caldart M, Festa F, Morino M. Transanal endoscopic microsurgery for rectal neoplasms: experience of 300 consecutive cases. Dis Colon Rectum. 2009 Nov;52(11):1831-6. doi: 10.1007/DCR.0b013e3181b14d2d.
Ramirez JM, Aguilella V, Arribas D, Martinez M. Transanal full-thickness excision of rectal tumours: should the defect be sutured? a randomized controlled trial. Colorectal Dis. 2002 Jan;4(1):51-55. doi: 10.1046/j.1463-1318.2002.00293.x.
Gallagher EJ, Bijur PE, Latimer C, Silver W. Reliability and validity of a visual analog scale for acute abdominal pain in the ED. Am J Emerg Med. 2002 Jul;20(4):287-90. doi: 10.1053/ajem.2002.33778.
Festen S, van Hoogstraten MJ, van Geloven AA, Gerhards MF. Treatment of grade III and IV haemorrhoidal disease with PPH or THD. A randomized trial on postoperative complications and short-term results. Int J Colorectal Dis. 2009 Dec;24(12):1401-5. doi: 10.1007/s00384-009-0803-2.
Todd KH, Funk KG, Funk JP, Bonacci R. Clinical significance of reported changes in pain severity. Ann Emerg Med. 1996 Apr;27(4):485-9. doi: 10.1016/s0196-0644(96)70238-x.
Kelly AM. The minimum clinically significant difference in visual analogue scale pain score does not differ with severity of pain. Emerg Med J. 2001 May;18(3):205-7. doi: 10.1136/emj.18.3.205.
Burch J, Epstein D, Baba-Akbari A, Weatherly H, Fox D, Golder S, Jayne D, Drummond M, Woolacott N. Stapled haemorrhoidectomy (haemorrhoidopexy) for the treatment of haemorrhoids: a systematic review and economic evaluation. Health Technol Assess. 2008 Apr;12(8):iii-iv, ix-x, 1-193. doi: 10.3310/hta12080.
Other Identifiers
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TEMPEST
Identifier Type: -
Identifier Source: org_study_id
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