Self bladder emptying compared to insertion of indwelling catheter, to empty the bladder for caesarean section

ISRCTN ISRCTN15821791
DOI https://doi.org/10.1186/ISRCTN15821791
Secondary identifying numbers MREC UMMC ID NO: 2021114-10756
Submission date
24/12/2021
Registration date
31/12/2021
Last edited
21/01/2022
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Pregnancy and Childbirth
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
A number of studies have provided information that self-bladder emptying (peeing in the toilet) from before Caesarean section and through recovery reduces the risk of urine infection without causing any problem during surgery (no bladder injury observed) or urination difficulty in the immediate recovery period.
However, one different type of study finds that when the catheter is removed immediately after the Caesarean is completed, 13.6% have difficulty peeing and need the catheter to be put back for a short time.
This is a study to compare the performances between peeing in the toilet (self-bladder emptying) with urinary bladder catheter placement at planned caesarean section to improve recovery and increase patient satisfaction.
The aim of this study is to evaluate the trial interventions as there is uncertainty about which is better or they may be equivalent. Information obtained from this study will help guide the management of future patients in similar circumstances.

Who can participate?
Participants include women aged 18 years and above, carrying a single healthy fetus (>37 weeks of gestation), who is planned to deliver by caesarean section.

What does the study involve?
Participants will be divided into two groups, one will urinate in the toilet and another group will have a urinary catheter inserted before surgery. The main outcome of this study is the rate of postpartum urinary retention (inability to pass urine after surgery) and participants' satisfaction with the given intervention.

What are the possible benefits and risks of participating?
There may or may not be any benefits to the participants. Information obtained from this study will help guide the management of future patients in similar circumstances.
For those allocated to self-emptying of bladder the specific risks are:
1. Operating field issue because the bladder is too filled up during surgery – the catheter will be inserted after the operation has begun
2. Injury to bladder – it will be repaired and the catheter has to be left in for about 1-2 weeks
3. Unable to pee immediately after surgery – catheter in and out or left in for up to 24 hours
For those allocated to the placement of a catheter the specific risks are:
1. Urine infection
2. Slower overall recovery from Caesarean section
3. After catheter removal, initial urination may be more uncomfortable and less satisfactory

Where is the study run from?
University Malaya Medical Centre (UMMC) (Malaysia)

When is the study starting and how long is it expected to run for?
September 2021 to May 2023

Who is funding the study?
University Malaya Medical Centre (UMMC) (Malaysia)

Who is the main contact?
Dr Nabila Arfah Mohd Yassin
nabila.arfah@ummc.edu.my

Contact information

Dr Nabila Arfah Mohd Yassin
Principal Investigator

Level 4, Women and Children Health Complex
University Malaya Medical Centre, Lembah Pantai
Kuala Lumpur
59100
Malaysia

ORCiD logoORCID ID 0000-0002-2014-0233
Phone +60 (0)19 6005886
Email nabila.arfah@ummc.edu.my

Study information

Study designSingle-center interventional randomized controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typeQuality of life
Participant information sheet 40867_PIS_V1_05Nov21.pdf
Scientific titleSelf bladder emptying compared with catheter placement for planned caesarean section: a randomised controlled trial
Study objectives1. Pre-caesarean section indwelling bladder catheterisation vs self-voiding is superior with respect to post-partum urinary retention (PPUR)
2. Self-voiders are more satisfied with their bladder care compared to having an indwelling bladder catheter
Ethics approval(s)Approved 05/11/2021, Medical Research Ethics Committee of University Malaya Medical Centre (Lembah Pantai, 59100 Kuala Lumpur, Malaysia; +60 3-79493209/2251; iresearch@ummc.edu.my), ref: 2021114-10756
Health condition(s) or problem(s) studiedWomen undergoing planned caesarean section
InterventionParticipants will be randomised into two arms, the self-emptying of the bladder arm or the indwelling bladder catheter arm.

Patients randomised to self-emptying of the bladder arm will be asked to empty their bladder at OT call in the ward toilet before despatch to the operation theatre (in case of delay in starting of surgery they will be asked again to pass urine in the OT, ideally within 1 hour prior to start of surgery as per Senanayake et al).

Patients randomised to indwelling bladder catheter will have their catheter inserted as per usual practice under aseptic technique using Foley catheter size 16F, after regional anaesthesia has been given in the operating theatre. The Foley catheter will be removed the next day according to current UMMC standard practice.
Intervention typeProcedure/Surgery
Primary outcome measure1. Post-partum urinary retention (PPUR) rate measured using bladder scan at hospital discharge
2. Maternal satisfaction with their allocated peri-caesarean bladder care measured using the Verbal Numeric Rating Scale (VNRS) at discharge
Secondary outcome measures1. Intraoperative outcomes measured using case report form – data collected after caesarean section is done:
1.1. Surgical field impairment (Yes/No)
1.2. Distressed catheterization (need for catheterization during caesarean section) (Yes/No)
1.3. Operative blood loss (in milliliters)
1.4. Bladder injury (Yes/No)
1.5. Duration of surgery (in minutes)
2. Postoperative outcomes measured using case report form at 24 hours post-surgery:
2.1. Urinary tract infection with urine culture and sensitivity test at 24 hours post-surgery
2.2. Lower urinary tract symptoms (LUTS) measured with the International Prostate Symptom Score (IPSS) questionnaire upon discharge
2.3. Time to first bowel flatulence
2.4. Time to first satisfactory breastfeeding experience
2.5. Time to first satisfactory urination
2.6. Time to first satisfactory ambulation
2.7. 11-point 0-10 Verbal Numeric Rating Scale (VNRS) pain score at first post-caesarean urination
2.8. Length of hospital stay post-surgery (from operation to discharge)
2.9. 11-point 0-10 VNRS pain score upon movement at discharge
Overall study start date01/09/2021
Completion date31/05/2023

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
SexFemale
Target number of participants400
Key inclusion criteria1. Planned caesarean section
2. Age 18 years and above
3. Gestational age (supported by dating ultrasound) ≥37 weeks
4. Singleton pregnancy
5. Reassuring fetal heart rate tracing
Key exclusion criteria1. Patients with evidence of urinary tract infection or recurrent antenatal UTI
2. Presence of large (>4 cm) ovarian or uterine masses
3. Anticipated pelvic adhesion
4. Anticipated difficult surgery or prolonged surgery time such as cases of placenta previa or accreta spectrum
5. Patients with severe pre-eclampsia or any other conditions requiring postoperative monitoring of urinary output
Date of first enrolment01/01/2022
Date of final enrolment31/03/2023

Locations

Countries of recruitment

  • Malaysia

Study participating centre

University Malaya Medical Centre
Lembah Pantai
Kuala Lumpur
59100
Malaysia

Sponsor information

University Malaya Medical Centre
Hospital/treatment centre

Obstetric and Gynecology Department
Level 7, Women and Children Health Complex
University Malaya Medical Centre, Lembah Pantai
Kuala Lumpur
59100
Malaysia

Phone +60 (0)3 79494422
Email maherah@ummc.edu.my
Website https://www.ummc.edu.my/
ROR logo "ROR" https://ror.org/00vkrxq08

Funders

Funder type

Hospital/treatment centre

University Malaya Medical Centre

No information available

Results and Publications

Intention to publish date31/05/2024
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
Publication and dissemination planPlanned publication in a high impact peer-reviewed journal
IPD sharing planCurrent individual participant data (IPD) sharing statement as of 21/01/2022:
The datasets generated during and/or analysed during the current study are/will be available upon request from Dr Nabila Arfah Mohd Yassin (nabila.arfah@ummc.edu.my). All the data collected will be available 6 months after publication of trial reports, subject to institutional review board approval.


Previous individual participant data (IPD) sharing statement:
The datasets generated during and/or analysed during the current study are/will be available upon request from Dr Nabila Arfah Mohd Yassin (nabila.arfah@ummc.edu.my). All of the participant data collected during the trial, after deidentification, will be available from 6 months after the end of recruitment until 10 years after the end of recruitment, for anyone who wishes to access the data for any purpose upon request/contacting the investigator. The study protocol, statistical analysis plan, informed consent form, and clinical study report will be available. Consent will be taken from participants, and they will be informed regarding this matter in the patient information sheet - anonymised trial data may be released to other researchers in the future, however, their identity will not be revealed. Anonymisation of trial data will be carried out before it is released to other researchers in the future as permitted by the Ethics Committee.

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Participant information sheet version 1 05/11/2021 29/12/2021 No Yes
Protocol file version 1.0 05/11/2021 29/12/2021 No No

Additional files

40867_PIS_V1_05Nov21.pdf
40867_PROTOCOL_V1.0_05Nov21.pdf

Editorial Notes

21/01/2022: The individual participant data (IPD) sharing statement has been updated
29/12/2021: Trial's existence confirmed by the Medical Research Ethics Committee of University Malaya Medical Centre.