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Assessment of Two Postoperative Techniques Used to Predict Voiding Efficiency After Gynecologic Surgery

Assessment of Two Postoperative Techniques Used to Predict Voiding Efficiency After Gynecologic Surgery

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00392210
Enrollment
79
Registered
2006-10-25
Start date
2006-10-31
Completion date
2009-10-31
Last updated
2017-04-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Urinary Incontinence

Brief summary

After gynecologic surgery, it may be difficult to void (urinate). This problem is usually short-term with normal function returning within a few days to a few weeks. For this reason, patients may require drainage of their bladder with a catheter immediately after surgery. Currently in our office, we use two different tests to see how well you are able to urinate and how quickly the catheter can be removed. The purpose of this study is to see which voiding test is better after gynecologic surgery.

Detailed description

Postoperative voiding dysfunction is commonly encountered following gynecologic surgery. This dysfunction is usually short term, with normal function returning within a few days. Following uro/gynecologic surgery, most patients require drainage with either a transurethral or suprapubic catheter in the immediate postoperative period. Within our practice, we prefer drainage with a transurethral catheter. At some point after surgery, the urethral catheter is removed and normal bladder function allowed to resume. At present, there is no generally accepted regimen to assess voiding efficiency. In our practice, we currently employ two regimens to both assess voiding efficiency and expedite catheter removal. In one technique, the catheter is removed and the patient's bladder is allowed to fill spontaneously. Patients are asked to void when they experience a strong urge. The voided volume is recorded and a post-void residual (PVR) is then measured by transurethral straight catheterization. In the second technique, the patient's bladder is retrogradely filled with 300 cc of sterile fluid and the catheter removed. They are asked to void within 15 minutes of instillation and the voided volume is measured. The PVR is then obtained by transurethral straight catheterization. In both cases, if the patient voids \>2/3 the total volume (voided volume + residual) the trial is considered passed and the catheter is removed. If a patient voids \< 2/3 of the total volume, the trial is considered failed and indicative of urinary retention. In this case the catheter replaced. We aim to assess the ability of these techniques to accurately predict voiding efficiency and to determine if one technique is superior to the other.

Interventions

Post-void residual and uroflow study will be done twice

Sponsors

University of Rochester
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
PREVENTION
Masking
SINGLE (Subject)

Eligibility

Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* All women \> 18 years of age presenting to the Division of Urogynecology at the University of Rochester Medical Center/Strong Memorial Hospital and undergoing gynecologic surgery which requires postoperative placement of a transurethral catheter. * Subjects must be competent to give informed consent.

Exclusion criteria

* Any patient less than 18 years of age. * Patients with suprapubic catheters postoperatively. * Patients undergoing surgery that does not require transurethral catheterization postoperatively. * Patients not competent to give informed consent. * Patients who are pregnant. * Patients undergoing procedures requiring prolonged bladder decompression (i.e. fistula repair).

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants Who Passed Bladder Trialpostoperatively after surgery on day1 or 2Voiding trial 1 was performed according to the patient assignment to group 1 or 2. Voiding trial 2 was done immediately after completion of trial 1. A successful trial was defined as a void of greater than two-thirds of total bladder volume (voided volume + post-void residual urine).

Countries

United States

Participant flow

Recruitment details

271 potential subjects were identified. 192 declined participation so 79 were enrolled.

Pre-assignment details

10 subjects were withdrawn prior to randomization

Participants by arm

ArmCount
Auto Fill Followed by Back Fill
The Auto fill-method was performed immediately followed by the back-fill method. Auto fill: The catheter was removed and the bladder was allowed to fill spontaneously until the patient experienced a strong urge to void. Back Fill: The bladder was filled retrograde through the indwelling Foley catheter with 300 cc sterile saline or until the patient reported a strong urge whichever occurred first.
41
Back Fill Followed by Auto Fill
The back fill-method was performed immediately followed by the auto-fill method. Auto fill: The catheter was removed and the bladder was allowed to fill spontaneously until the patient experienced a strong urge to void. Back Fill: The bladder was filled retrograde through the indwelling Foley catheter with 300 cc sterile saline or until the patient reported a strong urge whichever occurred first.
38
Total79

Withdrawals & dropouts

PeriodReasonFG000FG001
First Voiding TrialPhysician Decision22

Baseline characteristics

CharacteristicBack Fill Followed by Auto FillAuto Fill Followed by Back FillTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
17 Participants16 Participants33 Participants
Age, Categorical
Between 18 and 65 years
21 Participants25 Participants46 Participants
Age, Continuous57.58 years
STANDARD_DEVIATION 10.04
60.73 years
STANDARD_DEVIATION 12.05
59.02 years
STANDARD_DEVIATION 10.3
Region of Enrollment
United States
38 participants41 participants79 participants
Sex: Female, Male
Female
38 Participants41 Participants79 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
0 / 690 / 69
serious
Total, serious adverse events
0 / 690 / 69

Outcome results

Primary

Number of Participants Who Passed Bladder Trial

Voiding trial 1 was performed according to the patient assignment to group 1 or 2. Voiding trial 2 was done immediately after completion of trial 1. A successful trial was defined as a void of greater than two-thirds of total bladder volume (voided volume + post-void residual urine).

Time frame: postoperatively after surgery on day1 or 2

ArmMeasureValue (NUMBER)
Auto Fill InterventionNumber of Participants Who Passed Bladder Trial25 participants
Back Fill InterventionNumber of Participants Who Passed Bladder Trial39 participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026