Conventional Lateral Internal Sphincterotomy, V-Y Anoplasty and Tailored Lateral Internal Sphincterotomy With V-YF in Treatment of Chronic Anal Fissure(CAF)

Chronic Anal Fissure Clinical Trial

— CAF  

Official title:

Comparative Study of Conventional Lateral Internal Sphincterotomy, V-Y Anoplasty and Tailored Lateral Internal Sphincterotomy With V-Y Anoplasty in Treatment of Chronic Anal Fissure

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT01500889
• Other study ID #: anal fissure
• Status: Completed
• Phase: N/A
• First received: December 15, 2011
• Last updated: December 23, 2011
• Start date: January 2009
• Est. completion date: December 2010

Study information

• Verified date: December 2011
• Source: Mansoura University
• Contact: n/a
• Is FDA regulated: No
• Health authority: Egypt: Institutional Review Board
• Study type: Interventional

Clinical Trial Summary

The investigators compared conventional lateral internal sphincterotomy (CLIS), V-Y anal flap, and combined tailored lateral internal sphincterotomy with V-Y anal flap (TLIS with V-YF) in a randomized prospective study in patients undergoing treatment for chronic anal fissure.

Description:

Group I: Conventional Lateral internal sphincterotomy:

LIS was performed in the lithotomy position by a standard open technique, briefly; a 5-mm incision was made into the perianal skin along the intersphinteric groove. The internal anal sphincter was then dissected and a segment withdrawn with a pair of artery forces and divided with diathermy to the level of the dentate line. Figures 5, 6, 7 and 8 illustrate the procedure.

GroupII: V-Y advancement flap:

The V-Y advancement flap was performed by making a V-shaped incision from the edges of the fissure extending about 4 cm from the anal verge and away from the midline. The V-shaped flap formed of skin and subcutaneous fat was mobilized sufficiently to allow advancement into the anal canal to cover the fissure defect. Care was taken to preserve enough pedicles to ensure adequate blood supply. The base of flap was sutured to the lower anal mucosa with interrupted 000 Vicryl Rapide. Figures 1, 2, 3 and 4 illustrate the procedure.

GroupIII: Tailored lateral internal sphincterotomy with V-Y advancement flap:

Tailored lateral sphincterotomy was performed in the lithotomy position by a standard open technique, briefly; a 5-mm incision was made into the perianal skin along the intersphinteric groove. The internal anal sphincter was then dissected and a segment withdrawn with a pair of artery forces and divided with diathermy, the extent of sphincterotomy was done to be more or less equal to the length of the fissure. Then the V-Y advancement flap was performed All assessments were conducted by investigators who were blinded to the experimental condition. The primary outcome was complete healing (complete epithelization scare or no sign of fissure, healing was considered to be delayed if the wound had not completely healed by 6 weeks after the procedure). Secondary outcomes were operative time, length of hospital stay, anal incontinence (determined by Pescatori scoring system (32), time of relieve of pain, postoperative anal manometery, complications (eccyhmosis, haematoma, infection, disruption of flap, flap necrosis), persistent symptoms, patients satisfaction ( assessed on a visual analogue scale VAS), recurrence rate and quality of life.

Quality of life was assessed using the Gastrointestinal Quality of Life Index (GIQLI) developed by Eypasch and coworkers

Recruitment information / eligibility

• Status: Completed
• Enrollment: 150
• Est. completion date: December 2010
• Est. primary completion date: December 2010
• Accepts healthy volunteers: No
• Gender: Both
• Age group: 15 Years to 80 Years

Eligibility

Inclusion Criteria:

• consecutive patients who treated for chronic anal fissure at colorectal surgery unite of Mansoura university hospital, Mansoura, Egypt.

• all patients were selected to have increased resting anal pressure above the upper limit of normal range.

Exclusion Criteria:

• patients with acute fissure

• patients who had resting anal pressure within the normal range or less than the normal

• cicatricial deformation

• large sentinel pile

• inflammatory bowel disease hemorrhoids

• fistula in ano and anal abscesses

• those who had undergone previous surgical procedure in the anal canal

• age above 80 years

• vascular disease

• scleroderma

• malnutrition

• coagulopathy

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator), Primary Purpose: Treatment

Related Conditions & MeSH terms

• Chronic Anal Fissure
• Fissure in Ano

Intervention

Procedure:
• Group I: Conventional Lateral internal sphincterotomy:
LIS was performed in the lithotomy position by a standard open technique, briefly; a 5-mm incision was made into the perianal skin along the intersphinteric groove. The internal anal sphincter was then dissected and a segment withdrawn with a pair of artery forces and divided with diathermy to the level of the dentate line. Figures 5, 6, 7 and 8 illustrate the procedure.
• GroupII: V-Y advancement flap
GroupII: V-Y advancement flap: The V-Y advancement flap was performed by making a V-shaped incision from the edges of the fissure extending about 4 cm from the anal verge and away from the midline. The V-shaped flap formed of skin and subcutaneous fat was mobilized sufficiently to allow advancement into the anal canal to cover the fissure defect. Care was taken to preserve enough pedicles to ensure adequate blood supply. The base of flap was sutured to the lower anal mucosa with interrupted 000 Vicryl Rapide.
• GroupIII: Tailored LIS with V-Y advancement flap
Tailored lateral sphincterotomy was performed in the lithotomy position by a standard open technique, briefly; a 5-mm incision was made into the perianal skin along the intersphinteric groove. The internal anal sphincter was then dissected and a segment withdrawn with a pair of artery forces and divided with diathermy, the extent of sphincterotomy was done to be more or less equal to the length of the fissure. Then the V-Y advancement flap was performed.

Locations

Country	Name	City	State
Egypt	Mansoura University	Mansoura

Sponsors (1)

Lead Sponsor	Collaborator
Mansoura University

Country where clinical trial is conducted

Egypt, 

References & Publications (4)

Chambers W, Sajal R, Dixon A. V-Y advancement flap as first-line treatment for all chronic anal fissures. Int J Colorectal Dis. 2010 May;25(5):645-8. doi: 10.1007/s00384-010-0881-1. Epub 2010 Feb 23. — View Citation

Giordano P, Gravante G, Grondona P, Ruggiero B, Porrett T, Lunniss PJ. Simple cutaneous advancement flap anoplasty for resistant chronic anal fissure: a prospective study. World J Surg. 2009 May;33(5):1058-63. doi: 10.1007/s00268-009-9937-1. — View Citation

Hancke E, Rikas E, Suchan K, Völke K. Dermal flap coverage for chronic anal fissure: lower incidence of anal incontinence compared to lateral internal sphincterotomy after long-term follow-up. Dis Colon Rectum. 2010 Nov;53(11):1563-8. doi: 10.1007/DCR.0b0 — View Citation

Littlejohn DR, Newstead GL. Tailored lateral sphincterotomy for anal fissure. Dis Colon Rectum. 1997 Dec;40(12):1439-42. — View Citation

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	complete healing (complete epithelization scare or no sign of fissure, healing was considered to be delayed if the wound had not completely healed by 6 weeks after the procedure).	complete healing (complete epithelization scare or no sign of fissure, healing was considered to be delayed if the wound had not completely healed by 6 weeks after the procedure).	1 year	Yes
Secondary	Secondary outcomes were operative time	Secondary outcomes were operative time, length of hospital stay, anal incontinence (determined by Pescatori scoring system (32), time of relieve of pain, postoperative anal manometery, complications (eccyhmosis, haematoma, infection, disruption of flap, flap necrosis), persistent symptoms, patients satisfaction ( assessed on a visual analogue scale VAS), recurrence rate and quality of life.	1 year	Yes
Secondary	length of hospital stay	early postoperative hospital stay	one month	Yes
Secondary	anal incontenance	using pescatori scoring	one year	Yes
Secondary	recurrence rate	recurrence rate	one year	Yes
Secondary	postoperative anal manometery	resting anal pressure	one year	Yes
Secondary	complication	necrosis, infection	one month	Yes

External Links

•   Mansoura University