Efficacy of scheduled intravenous administration of acetaminophen for postoperative pain in patients after transurethral resection of bladder tumor: a randomized study

Efficacy of scheduled intravenous administration of acetaminophen for postoperative pain in patients after transurethral resection of bladder tumor: a randomized study - Efficacy of scheduled intravenous administration of acetaminophen for postoperative pain in patients after transurethral resection of bladder tumor: a randomized study

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000044599

Enrollment

Registered

2021-06-21

Start date

2021-06-21

Completion date

Unknown

Last updated

2026-06-29

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

Conditions

Patient who undergone TURBT

Interventions

scheduled intravenous administration of acetaminophen at postoperative 4,8,12h administration of analgesic at the time of need

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patient who undergone TURBT

Exclusion criteria

Exclusion criteria: Patient who undergone other surgery at the same time Patient who performed TURBT within 1 year Patient contraindicated for acetaminophen Patient with urethral cahteter Patient who performing clean intermittent catheterization

Design outcomes

Primary

Measure	Time frame
Score of catheter-related bladder discomfort at postoperative 0,1,2,4,8,12h Score of catheter-related bladder discomfort is defined as follows: 1. No discomfort, 2. Mild: revealed on questioning only, 3. Moderate: stated by the patient without being questioned, 4. Severe: urinary urgency demonstrated by behavioral responses such as attempts to remove the urinary catheter, restless extremity movements, verbal responses.	—

Measure

Time frame

Score of catheter-related bladder discomfort at postoperative 0,1,2,4,8,12h Score of catheter-related bladder discomfort is defined as follows: 1. No discomfort, 2. Mild: revealed on questioning only, 3. Moderate: stated by the patient without being questioned, 4. Severe: urinary urgency demonstrated by behavioral responses such as attempts to remove the urinary catheter, restless extremity movements, verbal responses.

—

Secondary

Measure	Time frame
Face Rating Scale at before TURBT, postoperative 0,1,2,4,8,12h, postoperative day1, day2, day3 Hematuria scale at postoperative 0,1,2,4,8,12h Administration of additional analgesic after TURBT Duration of urethral catheter after TURBT Postoperative hospital stay Rate of postoperative complications	—

Countries

Japan

Contacts

Public ContactTomoya Hatayama

Hiroshima-City Asa Citizens Hospital Urology

htomoya1211@gmail.com082-815-5211

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026