Numbing shot volume studied for better Post-Surgery pain control

NCT ID NCT01307215

Completed Symptom relief Sponsor: McMaster University Source: ClinicalTrials.gov ↗

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested whether changing the amount (volume) of a numbing medicine called ropivacaine affects pain relief after abdominal surgery. 31 patients having a total abdominal hysterectomy received one of three different volumes injected into the abdominal wall. The goal was to see if a larger volume spreads the numbness further and reduces pain, and to check if a bigger study is possible.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance: Ropivacaine (a numbing medicine)
What this could lead to: If it works, this could help doctors choose the best volume of numbing medicine to control pain after abdominal surgery.
What could go wrong: This is a very small, early feasibility study (31 people) looking at how to measure effects, not yet proving which volume is best. Results may not apply to all surgeries or patients.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

Pain, Postoperative

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

POST-OPERATIVE PAIN

Contacts and locations

Locations

St. Joseph's Healthcare Hamilton

Hamilton, Ontario, L8N 4A6, Canada

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