Preventing bladder catheterization after an operation under general or spinal anesthesia by using the patient's own maximal bladder capacity as a limit for maximum bladder volume

Effect of using Individual bladder capacity on the incidence of postoperative bladder catheterization in surgical patients

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN97786497

Enrollment

1839

Registered

2011-08-26

Start date

2008-05-14

Completion date

Unknown

Last updated

2021-02-22

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

Conditions

Postoperative bladder catheterization if spontaneous voiding was impossible and the volume for the randomized group was reached in surgical patients operated in the Medical Center Leeuwarden Urological and Genital Diseases Urinary catheterization

Interventions

1. Bladder catheterization when the measured bladder volume measured by ultrasound was larger the the limit for the group the patient was randomized (500 ml group = control group or the maximum bladde

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. All consecutive patients who visited the preanesthesia assessment clinic (PAC) at the Medical Center Leeuwarden, the Netherlands were invited to participate in this study 2. Eligible patients were 18 years or older, were planned for surgical intervention under general or spinal anesthesia, without the anticipated need for an indwelling catheter peroperatively 3. All participating patients gave informed consent (at the PAC) to follow the instructions to measure their individual MBC at home, to be randomized to one of the two study arms and to complete the questionnaires as required in the protocol

Exclusion criteria

Exclusion criteria: 1. All patients operated under local anesthesia, or operations where an indwelling bladder catheter was obliged 2. Patients younger than 18 years of age

Design outcomes

Primary

Measure	Time frame
1. The incidence of bladder catheterization in each treatment group 2. Pre-planned subgroup analyses were the influence of gender and the influence of the anesthesia technique - general versus spinal - on the incidence of bladder catheterization	—

Secondary

Measure	Time frame
1. The number of patients in whom catheterization could have been avoided, which could retrospectively only be determined in the control group. ?Avoidable catheterization? was defined as catheterization in the presence of a measured bladder volume larger than 500ml, but smaller than the patient?s individual MBC 2. Those patients would not have been catheterized if they were randomized in the index group where their MBC was used as threshold instead of 500ml 3. IPSS and QoL scores, specially focused on LUTS, were also compared	—

Measure

Time frame

1. The number of patients in whom catheterization could have been avoided, which could retrospectively only be determined in the control group. ?Avoidable catheterization? was defined as catheterization in the presence of a measured bladder volume larger than 500ml, but smaller than the patient?s individual MBC 2. Those patients would not have been catheterized if they were randomized in the index group where their MBC was used as threshold instead of 500ml 3. IPSS and QoL scores, specially focused on LUTS, were also compared

—

Countries

Netherlands

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 24, 2026