Warm injection may stop shivers during spinal surgery
NCT ID NCT07081516
First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tested whether warming the anesthetic drug (bupivacaine) before injecting it into the spine could prevent shivering in patients undergoing urologic surgery. 96 adults were randomly assigned to receive either warm or room-temperature anesthetic. The main goal was to see if fewer patients experienced moderate to severe shivering after the spinal block.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- bupivacaine
- What this could lead to
- If warming the anesthetic works, it could offer a simple, low-cost way to prevent shivering during spinal anesthesia.
- What could go wrong
- This is a small, single-center study with only 96 participants. The results may not apply to all surgeries or patient groups.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
-
Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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96 people
The number who actually took part.
- Started
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Apr 2025
- Finished
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Nov 2025
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 60 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * 1\. Adult patients scheduled for urological procedures under spinal anaesthesia. 2. Patient age ranges from 18 to 60 years. 3. American Society of Anesthesiologists (ASA) physical status class I or II. Exclusion Criteria: * 1\. Patient's refusal of regional block. 2. Patients with neurological disorders, increased intracranial pressure, convulsive disorders, autonomic neuropathies, psychological disorders, or those lacking cooperation. 3\. Patients with anatomical abnormalities, skin lesions, wounds, or infection at the site of injection, or general infection. 4\. Patients with bleeding disorders defined as (INR\>1.4) and/or (platelet count \< 100,000/µL). 5\. Patients with known hypersensitivity to any of the study drugs. 6. Patients with renal impairment. 7. Patients with hepatic disease e.g. severe liver cell failure, or hepatic malignancy, or hepatic enlargement. 8\. Patients with failed, or partial spinal block.
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Kasr Alainy Hospitals
Cairo, Cairo Governorate, 1234, Egypt
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