Trial Outcomes & Findings for Urinary Retention After Total Laparoscopic Hysterectomy With Immediate Foley Catheter Removal Versus Backfill Void Trial (NCT NCT03141372)

NCT ID: NCT03141372

Last Updated: 2018-10-11

Results Overview

The primary endpoint of this study will be to determine if the rate of void trial failure after total laparoscopic hysterectomy is different after the autofill method versus the backfill method.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

84 participants

Primary outcome timeframe

post-operative day, about 4 hours post-surgery

Results posted on

2018-10-11

Participant Flow

Participant milestones

Participant milestones
Measure
Autofill Void Trial
Patients who randomize to the autofill void trial will be allowed to urinate at any time within the first 3 hours after surgery. The amount urinated will be recorded using a commode specimen collection measurer. The PVR will be measured. If PVR \> 100 mL, the void trial will be considered "failed" and a Foley catheter will be replaced. Void Trial using Foley catheter: A void trial is a test to ensure that a subject does not have urinary retention after a surgical procedure. In an autofill void trial, the subject is allowed to void after surgery and the amount of resulting urine and the amount of urine still remaining in the bladder are measured. In a backfill void trial, water is instilled into the bladder, the foley is removed, and the subject is then allowed to urinate. Again, the amount of urine resulting and the amount of urine still in the bladder are measured.
Backfill Void Trial
About 300 mL of fluid will be instilled into the bladder and the Foley will then be removed. The participant will be given up to 1 hour to urinate and the amount urinated will be recorded using a commode specimen collection measurer. The PVR will be measured. If PVR \> 100 mL or if the patient is unable to void within the hour, the void trial will be considered "failed" and a Foley catheter will be replaced. Void Trial using Foley catheter: A void trial is a test to ensure that a subject does not have urinary retention after a surgical procedure. In an autofill void trial, the subject is allowed to void after surgery and the amount of resulting urine and the amount of urine still remaining in the bladder are measured. In a backfill void trial, water is instilled into the bladder, the foley is removed, and the subject is then allowed to urinate. Again, the amount of urine resulting and the amount of urine still in the bladder are measured.
Overall Study
STARTED
42
42
Overall Study
COMPLETED
42
40
Overall Study
NOT COMPLETED
0
2

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Urinary Retention After Total Laparoscopic Hysterectomy With Immediate Foley Catheter Removal Versus Backfill Void Trial

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Autofill Void Trial
n=42 Participants
Patients who randomize to the autofill void trial will be allowed to urinate at any time within the first 3 hours after surgery. The amount urinated will be recorded using a commode specimen collection measurer. The PVR will be measured. If PVR \> 100 mL, the void trial will be considered "failed" and a Foley catheter will be replaced. Void Trial using Foley catheter: A void trial is a test to ensure that a subject does not have urinary retention after a surgical procedure. In an autofill void trial, the subject is allowed to void after surgery and the amount of resulting urine and the amount of urine still remaining in the bladder are measured. In a backfill void trial, water is instilled into the bladder, the foley is removed, and the subject is then allowed to urinate. Again, the amount of urine resulting and the amount of urine still in the bladder are measured.
Backfill Void Trial
n=40 Participants
About 300 mL of fluid will be instilled into the bladder and the Foley will then be removed. The participant will be given up to 1 hour to urinate and the amount urinated will be recorded using a commode specimen collection measurer. The PVR will be measured. If PVR \> 100 mL or if the patient is unable to void within the hour, the void trial will be considered "failed" and a Foley catheter will be replaced. Void Trial using Foley catheter: A void trial is a test to ensure that a subject does not have urinary retention after a surgical procedure. In an autofill void trial, the subject is allowed to void after surgery and the amount of resulting urine and the amount of urine still remaining in the bladder are measured. In a backfill void trial, water is instilled into the bladder, the foley is removed, and the subject is then allowed to urinate. Again, the amount of urine resulting and the amount of urine still in the bladder are measured.
Total
n=82 Participants
Total of all reporting groups
Age, Continuous
46 years
n=5 Participants
46 years
n=7 Participants
46 years
n=5 Participants
Sex: Female, Male
Female
42 Participants
n=5 Participants
40 Participants
n=7 Participants
82 Participants
n=5 Participants
Sex: Female, Male
Male
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
1 Participants
n=7 Participants
1 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
19 Participants
n=5 Participants
16 Participants
n=7 Participants
35 Participants
n=5 Participants
Race (NIH/OMB)
White
23 Participants
n=5 Participants
23 Participants
n=7 Participants
46 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
BMI
32.4 kg/m^2
n=5 Participants
28.8 kg/m^2
n=7 Participants
30.2 kg/m^2
n=5 Participants

PRIMARY outcome

Timeframe: post-operative day, about 4 hours post-surgery

The primary endpoint of this study will be to determine if the rate of void trial failure after total laparoscopic hysterectomy is different after the autofill method versus the backfill method.

Outcome measures

Outcome measures
Measure
Autofill Void Trial
n=42 Participants
Patients who randomize to the autofill void trial will be allowed to urinate at any time within the first 3 hours after surgery. The amount urinated will be recorded using a commode specimen collection measurer. The postvoid residual will be measured. If postvoid residual greater than 100 mL, the void trial will be considered "failed" and a Foley catheter will be replaced. Void Trial using Foley catheter: A void trial is a test to ensure that a subject does not have urinary retention after a surgical procedure. In an autofill void trial, the subject is allowed to void after surgery and the amount of resulting urine and the amount of urine still remaining in the bladder are measured. In a backfill void trial, water is instilled into the bladder, the foley is removed, and the subject is then allowed to urinate. Again, the amount of urine resulting and the amount of urine still in the bladder are measured.
Backfill Void Trial
n=40 Participants
About 300 mL of fluid will be instilled into the bladder and the Foley will then be removed. The participant will be given up to 1 hour to urinate and the amount urinated will be recorded using a commode specimen collection measurer. The postvoid residual will be measured. If postvoid residual greater than 100 mL or if the patient is unable to void within the hour, the void trial will be considered "failed" and a Foley catheter will be replaced. Void Trial using Foley catheter: A void trial is a test to ensure that a subject does not have urinary retention after a surgical procedure. In an autofill void trial, the subject is allowed to void after surgery and the amount of resulting urine and the amount of urine still remaining in the bladder are measured. In a backfill void trial, water is instilled into the bladder, the foley is removed, and the subject is then allowed to urinate. Again, the amount of urine resulting and the amount of urine still in the bladder are measured.
Number of Participants With Void Trial Failure Rate
7 Participants
11 Participants

SECONDARY outcome

Timeframe: post-operative day, about 4 hours post-surgery

The time to discharge will be measured for each participant. This will be determined by calculating the time between arrival to the post-anesthesia care unit and the time of discharge using documentation from Epic and from the case report forms.

Outcome measures

Outcome measures
Measure
Autofill Void Trial
n=42 Participants
Patients who randomize to the autofill void trial will be allowed to urinate at any time within the first 3 hours after surgery. The amount urinated will be recorded using a commode specimen collection measurer. The postvoid residual will be measured. If postvoid residual greater than 100 mL, the void trial will be considered "failed" and a Foley catheter will be replaced. Void Trial using Foley catheter: A void trial is a test to ensure that a subject does not have urinary retention after a surgical procedure. In an autofill void trial, the subject is allowed to void after surgery and the amount of resulting urine and the amount of urine still remaining in the bladder are measured. In a backfill void trial, water is instilled into the bladder, the foley is removed, and the subject is then allowed to urinate. Again, the amount of urine resulting and the amount of urine still in the bladder are measured.
Backfill Void Trial
n=40 Participants
About 300 mL of fluid will be instilled into the bladder and the Foley will then be removed. The participant will be given up to 1 hour to urinate and the amount urinated will be recorded using a commode specimen collection measurer. The postvoid residual will be measured. If postvoid residual greater than 100 mL or if the patient is unable to void within the hour, the void trial will be considered "failed" and a Foley catheter will be replaced. Void Trial using Foley catheter: A void trial is a test to ensure that a subject does not have urinary retention after a surgical procedure. In an autofill void trial, the subject is allowed to void after surgery and the amount of resulting urine and the amount of urine still remaining in the bladder are measured. In a backfill void trial, water is instilled into the bladder, the foley is removed, and the subject is then allowed to urinate. Again, the amount of urine resulting and the amount of urine still in the bladder are measured.
Time to Discharge
176 minutes
Interval 160.5 to 255.5
218 minutes
Interval 180.0 to 265.0

SECONDARY outcome

Timeframe: 10-14 days post-surgery

After discharge, participants will be monitored for any encounters for urinary retention (in our hospital system) and will be asked at their 10-14 day post-operative visit if they had a Foley catheter placed outside the hospital. Additionally, any participant who fails their 2nd void trial will be noted. The incidence of urinary retention post-discharge will be determined using this data.

Outcome measures

Outcome measures
Measure
Autofill Void Trial
n=42 Participants
Patients who randomize to the autofill void trial will be allowed to urinate at any time within the first 3 hours after surgery. The amount urinated will be recorded using a commode specimen collection measurer. The postvoid residual will be measured. If postvoid residual greater than 100 mL, the void trial will be considered "failed" and a Foley catheter will be replaced. Void Trial using Foley catheter: A void trial is a test to ensure that a subject does not have urinary retention after a surgical procedure. In an autofill void trial, the subject is allowed to void after surgery and the amount of resulting urine and the amount of urine still remaining in the bladder are measured. In a backfill void trial, water is instilled into the bladder, the foley is removed, and the subject is then allowed to urinate. Again, the amount of urine resulting and the amount of urine still in the bladder are measured.
Backfill Void Trial
n=40 Participants
About 300 mL of fluid will be instilled into the bladder and the Foley will then be removed. The participant will be given up to 1 hour to urinate and the amount urinated will be recorded using a commode specimen collection measurer. The postvoid residual will be measured. If postvoid residual greater than 100 mL or if the patient is unable to void within the hour, the void trial will be considered "failed" and a Foley catheter will be replaced. Void Trial using Foley catheter: A void trial is a test to ensure that a subject does not have urinary retention after a surgical procedure. In an autofill void trial, the subject is allowed to void after surgery and the amount of resulting urine and the amount of urine still remaining in the bladder are measured. In a backfill void trial, water is instilled into the bladder, the foley is removed, and the subject is then allowed to urinate. Again, the amount of urine resulting and the amount of urine still in the bladder are measured.
Number of Patients With Urinary Retention
1 Participants
1 Participants

SECONDARY outcome

Timeframe: up to 14 days post-surgery

Any participant diagnosed with a culture-proven urinary tract infection will be noted.

Outcome measures

Outcome measures
Measure
Autofill Void Trial
n=42 Participants
Patients who randomize to the autofill void trial will be allowed to urinate at any time within the first 3 hours after surgery. The amount urinated will be recorded using a commode specimen collection measurer. The postvoid residual will be measured. If postvoid residual greater than 100 mL, the void trial will be considered "failed" and a Foley catheter will be replaced. Void Trial using Foley catheter: A void trial is a test to ensure that a subject does not have urinary retention after a surgical procedure. In an autofill void trial, the subject is allowed to void after surgery and the amount of resulting urine and the amount of urine still remaining in the bladder are measured. In a backfill void trial, water is instilled into the bladder, the foley is removed, and the subject is then allowed to urinate. Again, the amount of urine resulting and the amount of urine still in the bladder are measured.
Backfill Void Trial
n=40 Participants
About 300 mL of fluid will be instilled into the bladder and the Foley will then be removed. The participant will be given up to 1 hour to urinate and the amount urinated will be recorded using a commode specimen collection measurer. The postvoid residual will be measured. If postvoid residual greater than 100 mL or if the patient is unable to void within the hour, the void trial will be considered "failed" and a Foley catheter will be replaced. Void Trial using Foley catheter: A void trial is a test to ensure that a subject does not have urinary retention after a surgical procedure. In an autofill void trial, the subject is allowed to void after surgery and the amount of resulting urine and the amount of urine still remaining in the bladder are measured. In a backfill void trial, water is instilled into the bladder, the foley is removed, and the subject is then allowed to urinate. Again, the amount of urine resulting and the amount of urine still in the bladder are measured.
Number of Participants With Post-Operative Urinary Tract Infection
2 Participants
1 Participants

SECONDARY outcome

Timeframe: pre-surgery and 14 days post-surgery

The Incontinence Impact Questionnaire-7 will be used to determine if there are any changes to the participants' short term quality of life before and after surgery. The questionnaire includes 7 questions asking how the participant's bladder function has affected her: 1. Ability to do household chores. 2. Physical recreation 3. Entertainment activities 4. Ability to travel by car or bus more than 30 minutes from home 5. Participation in social activities outside the home 6. Emotional health 7. Feeling frustrated The patient scores each of the questions using the following scale: 0 - Not at all 1. \- Slightly 2. \- Moderately 3. \- Greatly The scores were added and divided by 7 to obtain an average score for each participant. Hence the range of scores is 0 to 3 with 0 being the best and 3 being the worst.

Outcome measures

Outcome measures
Measure
Autofill Void Trial
n=42 Participants
Patients who randomize to the autofill void trial will be allowed to urinate at any time within the first 3 hours after surgery. The amount urinated will be recorded using a commode specimen collection measurer. The postvoid residual will be measured. If postvoid residual greater than 100 mL, the void trial will be considered "failed" and a Foley catheter will be replaced. Void Trial using Foley catheter: A void trial is a test to ensure that a subject does not have urinary retention after a surgical procedure. In an autofill void trial, the subject is allowed to void after surgery and the amount of resulting urine and the amount of urine still remaining in the bladder are measured. In a backfill void trial, water is instilled into the bladder, the foley is removed, and the subject is then allowed to urinate. Again, the amount of urine resulting and the amount of urine still in the bladder are measured.
Backfill Void Trial
n=40 Participants
About 300 mL of fluid will be instilled into the bladder and the Foley will then be removed. The participant will be given up to 1 hour to urinate and the amount urinated will be recorded using a commode specimen collection measurer. The postvoid residual will be measured. If postvoid residual greater than 100 mL or if the patient is unable to void within the hour, the void trial will be considered "failed" and a Foley catheter will be replaced. Void Trial using Foley catheter: A void trial is a test to ensure that a subject does not have urinary retention after a surgical procedure. In an autofill void trial, the subject is allowed to void after surgery and the amount of resulting urine and the amount of urine still remaining in the bladder are measured. In a backfill void trial, water is instilled into the bladder, the foley is removed, and the subject is then allowed to urinate. Again, the amount of urine resulting and the amount of urine still in the bladder are measured.
Quality of Bladder Function Using the Incontinence Impact Questionnaire
0 scores on a scale
Interval 0.0 to 1.75
0 scores on a scale
Interval 0.0 to 0.0

SECONDARY outcome

Timeframe: presurgery and at 10-14 days post-surgery

The Patient Perception of Bladder Condition will be used to determine if there are any changes to the participants' perception of bladder function before and after surgery. In this questionnaire, the participant answers one question as follows: My bladder condition: 0 - Does not cause me any problems at all 1. \- Causes me very minor problems 2. \- Causes me some minor problems 3. \- Causes me (some) moderate problems 4. \- Causes me severe problems 5. \- Causes me many severe problems The score was recorded for each patient. The range of possible scores were 0 to 5 with 0 being the best and 5 being the worst scores.

Outcome measures

Outcome measures
Measure
Autofill Void Trial
n=42 Participants
Patients who randomize to the autofill void trial will be allowed to urinate at any time within the first 3 hours after surgery. The amount urinated will be recorded using a commode specimen collection measurer. The postvoid residual will be measured. If postvoid residual greater than 100 mL, the void trial will be considered "failed" and a Foley catheter will be replaced. Void Trial using Foley catheter: A void trial is a test to ensure that a subject does not have urinary retention after a surgical procedure. In an autofill void trial, the subject is allowed to void after surgery and the amount of resulting urine and the amount of urine still remaining in the bladder are measured. In a backfill void trial, water is instilled into the bladder, the foley is removed, and the subject is then allowed to urinate. Again, the amount of urine resulting and the amount of urine still in the bladder are measured.
Backfill Void Trial
n=40 Participants
About 300 mL of fluid will be instilled into the bladder and the Foley will then be removed. The participant will be given up to 1 hour to urinate and the amount urinated will be recorded using a commode specimen collection measurer. The postvoid residual will be measured. If postvoid residual greater than 100 mL or if the patient is unable to void within the hour, the void trial will be considered "failed" and a Foley catheter will be replaced. Void Trial using Foley catheter: A void trial is a test to ensure that a subject does not have urinary retention after a surgical procedure. In an autofill void trial, the subject is allowed to void after surgery and the amount of resulting urine and the amount of urine still remaining in the bladder are measured. In a backfill void trial, water is instilled into the bladder, the foley is removed, and the subject is then allowed to urinate. Again, the amount of urine resulting and the amount of urine still in the bladder are measured.
Patient Perception of Bladder Condition Score
0 score on a scale
Interval 0.0 to 1.0
0 score on a scale
Interval 0.0 to 1.0

SECONDARY outcome

Timeframe: at 10-14 days post-surgery

Participant satisfaction level with the method of void trial will be collected at the 10-14 day post-operative visit and compared between the two methods of void trial.

Outcome measures

Outcome measures
Measure
Autofill Void Trial
n=42 Participants
Patients who randomize to the autofill void trial will be allowed to urinate at any time within the first 3 hours after surgery. The amount urinated will be recorded using a commode specimen collection measurer. The postvoid residual will be measured. If postvoid residual greater than 100 mL, the void trial will be considered "failed" and a Foley catheter will be replaced. Void Trial using Foley catheter: A void trial is a test to ensure that a subject does not have urinary retention after a surgical procedure. In an autofill void trial, the subject is allowed to void after surgery and the amount of resulting urine and the amount of urine still remaining in the bladder are measured. In a backfill void trial, water is instilled into the bladder, the foley is removed, and the subject is then allowed to urinate. Again, the amount of urine resulting and the amount of urine still in the bladder are measured.
Backfill Void Trial
n=40 Participants
About 300 mL of fluid will be instilled into the bladder and the Foley will then be removed. The participant will be given up to 1 hour to urinate and the amount urinated will be recorded using a commode specimen collection measurer. The postvoid residual will be measured. If postvoid residual greater than 100 mL or if the patient is unable to void within the hour, the void trial will be considered "failed" and a Foley catheter will be replaced. Void Trial using Foley catheter: A void trial is a test to ensure that a subject does not have urinary retention after a surgical procedure. In an autofill void trial, the subject is allowed to void after surgery and the amount of resulting urine and the amount of urine still remaining in the bladder are measured. In a backfill void trial, water is instilled into the bladder, the foley is removed, and the subject is then allowed to urinate. Again, the amount of urine resulting and the amount of urine still in the bladder are measured.
Number of Participants Satisfied or Very Satisfied With Void Trial Using 5 Point Lickert Scale
39 Participants
30 Participants

Adverse Events

Autofill Void Trial

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

Backfill Void Trial

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

Sara Farag, Fellow in Minimally Invasive Gynecologic Surgery

Cleveland Clinic Florida

Phone: 8147691904

Results disclosure agreements

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