Trial Outcomes & Findings for Video-assisted Anal Fistula Treatment Versus Seton in the Management of High Peri Anal Fistula (NCT NCT02313597)

NCT ID: NCT02313597

Last Updated: 2021-03-11

Results Overview

Number of Participants with Recurrence of Disease or Fistula 3 Years After Treatment

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

80 participants

Primary outcome timeframe

3 years postoperatively

Results posted on

2021-03-11

Participant Flow

Participant milestones

Participant milestones
Measure
SETON
Hydrogen peroxide was injected to the external opening with a 10-cc syringe, and the internal opening was located by direct visualization of the anal canal via proctoscope. A cannulating probe was inserted into the external opening and carefully maneuvered through the internal opening. Silk 1/0 suture was then tied to the tip of the probe, which was then squeezed out of the external opening. The suture was then tied around the sphincter and through fistula tract, Later, the seton was tightened at four week interval under spinal anesthesia until the suture cut through the sphincter.
VAAFT
The external opening was widened with a probe, and a fistulascope was inserted to delineate the primary and secondary tracts and locate the internal opening. The internal opening was then stitched with Vicryl™(Polyglactin 910) 2-0 suture through the anal route with the help of a proctoscope. And the tract of the fistula was washed and debrided through scope and it was coagulated with cautry so that tract be closed.
Overall Study
STARTED
40
40
Overall Study
COMPLETED
40
40
Overall Study
NOT COMPLETED
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Race and Ethnicity were not collected from any participant.

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
SETON
n=40 Participants
Hydrogen peroxide was injected to the external opening with a 10-cc syringe, and the internal opening was located by direct visualization of the anal canal via proctoscope. A cannulating probe was inserted into the external opening and carefully maneuvered through the internal opening. Silk 1/0 suture was then tied to the tip of the probe, which was then squeezed out of the external opening. The suture was then tied around the sphincter and through fistula tract, Later, the seton was tightened at four week interval under spinal anesthesia until the suture cut through the sphincter.
VAAFT
n=40 Participants
The external opening was widened with a probe, and a fistulascope was inserted to delineate the primary and secondary tracts and locate the internal opening. The internal opening was then stitched with Vicryl™(Polyglactin 910) 2-0 suture through the anal route with the help of a proctoscope. And the tract of the fistula was washed and debrided through scope and it was coagulated with cautry so that tract be closed.
Total
n=80 Participants
Total of all reporting groups
Age, Continuous
38.4 Years
STANDARD_DEVIATION 10.1 • n=40 Participants
39.9 Years
STANDARD_DEVIATION 12.4 • n=40 Participants
39.1 Years
STANDARD_DEVIATION 11.2 • n=80 Participants
Sex: Female, Male
Female
31 Participants
n=40 Participants
33 Participants
n=40 Participants
64 Participants
n=80 Participants
Sex: Female, Male
Male
9 Participants
n=40 Participants
7 Participants
n=40 Participants
16 Participants
n=80 Participants
Race and Ethnicity Not Collected
0 Participants
Race and Ethnicity were not collected from any participant.
Region of Enrollment
Pakistan
40 participants
n=40 Participants
40 participants
n=40 Participants
80 participants
n=80 Participants

PRIMARY outcome

Timeframe: 3 years postoperatively

Number of Participants with Recurrence of Disease or Fistula 3 Years After Treatment

Outcome measures

Outcome measures
Measure
SETON
n=40 Participants
Hydrogen peroxide was injected to the external opening with a 10-cc syringe, and the internal opening was located by direct visualization of the anal canal via proctoscope. A cannulating probe was inserted into the external opening and carefully maneuvered through the internal opening. Silk 1/0 suture was then tied to the tip of the probe, which was then squeezed out of the external opening. The suture was then tied around the sphincter and through fistula tract, Later, the seton was tightened at four week interval under spinal anesthesia until the suture cut through the sphincter.
VAAFT
n=40 Participants
The external opening was widened with a probe, and a fistulascope was inserted to delineate the primary and secondary tracts and locate the internal opening. The internal opening was then stitched with Vicryl™(Polyglactin 910) 2-0 suture through the anal route with the help of a proctoscope. And the tract of the fistula was washed and debrided through scope and it was coagulated with cautry so that tract be closed.
Number of Participants With Recurrence of Disease or Fistula
5 Participants
10 Participants

SECONDARY outcome

Timeframe: Time from beginning of surgery to end of surgery,assessed up to 180 minutes

Duration of surgery measured upto 180 minutes

Outcome measures

Outcome measures
Measure
SETON
n=40 Participants
Hydrogen peroxide was injected to the external opening with a 10-cc syringe, and the internal opening was located by direct visualization of the anal canal via proctoscope. A cannulating probe was inserted into the external opening and carefully maneuvered through the internal opening. Silk 1/0 suture was then tied to the tip of the probe, which was then squeezed out of the external opening. The suture was then tied around the sphincter and through fistula tract, Later, the seton was tightened at four week interval under spinal anesthesia until the suture cut through the sphincter.
VAAFT
n=40 Participants
The external opening was widened with a probe, and a fistulascope was inserted to delineate the primary and secondary tracts and locate the internal opening. The internal opening was then stitched with Vicryl™(Polyglactin 910) 2-0 suture through the anal route with the help of a proctoscope. And the tract of the fistula was washed and debrided through scope and it was coagulated with cautry so that tract be closed.
Duration of Surgery
36.97 Minutes
Standard Deviation 12.98
78.60 Minutes
Standard Deviation 26.24

SECONDARY outcome

Timeframe: 12 hours after surgery

Pain score measured through visual analog score with 1 being minimum and 10 being maximum. Lesser value represents better outcome and greater value shows worse outcome.

Outcome measures

Outcome measures
Measure
SETON
n=40 Participants
Hydrogen peroxide was injected to the external opening with a 10-cc syringe, and the internal opening was located by direct visualization of the anal canal via proctoscope. A cannulating probe was inserted into the external opening and carefully maneuvered through the internal opening. Silk 1/0 suture was then tied to the tip of the probe, which was then squeezed out of the external opening. The suture was then tied around the sphincter and through fistula tract, Later, the seton was tightened at four week interval under spinal anesthesia until the suture cut through the sphincter.
VAAFT
n=40 Participants
The external opening was widened with a probe, and a fistulascope was inserted to delineate the primary and secondary tracts and locate the internal opening. The internal opening was then stitched with Vicryl™(Polyglactin 910) 2-0 suture through the anal route with the help of a proctoscope. And the tract of the fistula was washed and debrided through scope and it was coagulated with cautry so that tract be closed.
Pain Score
2.82 score on a scale
Standard Deviation 1.58
4.22 score on a scale
Standard Deviation 1.83

SECONDARY outcome

Timeframe: up to 4 weeks

Outcome measures

Outcome measures
Measure
SETON
n=40 Participants
Hydrogen peroxide was injected to the external opening with a 10-cc syringe, and the internal opening was located by direct visualization of the anal canal via proctoscope. A cannulating probe was inserted into the external opening and carefully maneuvered through the internal opening. Silk 1/0 suture was then tied to the tip of the probe, which was then squeezed out of the external opening. The suture was then tied around the sphincter and through fistula tract, Later, the seton was tightened at four week interval under spinal anesthesia until the suture cut through the sphincter.
VAAFT
n=40 Participants
The external opening was widened with a probe, and a fistulascope was inserted to delineate the primary and secondary tracts and locate the internal opening. The internal opening was then stitched with Vicryl™(Polyglactin 910) 2-0 suture through the anal route with the help of a proctoscope. And the tract of the fistula was washed and debrided through scope and it was coagulated with cautry so that tract be closed.
Time to Return to Work
9.27 Days
Standard Deviation 2.06
7.42 Days
Standard Deviation 1.78

SECONDARY outcome

Timeframe: up to 12 weeks

Outcome measures

Outcome measures
Measure
SETON
n=40 Participants
Hydrogen peroxide was injected to the external opening with a 10-cc syringe, and the internal opening was located by direct visualization of the anal canal via proctoscope. A cannulating probe was inserted into the external opening and carefully maneuvered through the internal opening. Silk 1/0 suture was then tied to the tip of the probe, which was then squeezed out of the external opening. The suture was then tied around the sphincter and through fistula tract, Later, the seton was tightened at four week interval under spinal anesthesia until the suture cut through the sphincter.
VAAFT
n=40 Participants
The external opening was widened with a probe, and a fistulascope was inserted to delineate the primary and secondary tracts and locate the internal opening. The internal opening was then stitched with Vicryl™(Polyglactin 910) 2-0 suture through the anal route with the help of a proctoscope. And the tract of the fistula was washed and debrided through scope and it was coagulated with cautry so that tract be closed.
Time to Healing of Fistula
9.7 weeks
Standard Deviation 1.87
5.75 weeks
Standard Deviation 1.17

Adverse Events

SETON

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

VAAFT

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Dr, Shabbar Hussain Changazi

Services Institute of Medical Sciences

Phone: 923059700111

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place