5 vs 10 mcg norepinephrine bolus for postinduction hypotension in emergency abdominal surgery
Official title: Comparing 5 mcg and 10 mcg Norepinephrine Bolus in Treatment of Postinduction and Early Intraoperative Hypotension in Emergency Abdominal Surgery: a Randomized Controlled Trial
Run by Cairo University · NCT07719075 · Data updated 2026-11-12
Researchers are testing whether a 5 mcg norepinephrine bolus works as well as a 10 mcg bolus to treat low blood pressure right after induction in patients undergoing emergency abdominal surgery.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 21 Years to 65 Years |
| Sex | All |
| Enrollment | 136 (estimated) |
| Sponsor | Cairo University Academic / other |
| Locations | 1 site (Cairo, Cairo Governorate) |
| Status | Recruiting |
| Started | August 4, 2026 |
| Main results expected | December 2026 |
| Study ends | December 2026 |
| Registry record updated | August 5, 2026 |
| Trial ID | NCT07719075 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults (ASA I–III) undergoing emergency abdominal surgery who may benefit from norepinephrine bolus therapy for postinduction hypotension.
✕Probably not a fit
Patients with severe cardiac disease, arrhythmias, or those already receiving vasopressors may not benefit from this dosing comparison.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This interventional study compares two fixed doses of norepinephrine used as a bolus to correct postinduction hypotension during emergency abdominal surgery. After a stroke volume guided fluid assessment, patients receive either 5 mcg or 10 mcg norepinephrine, with hemodynamics monitored every 2 minutes for 30 minutes after skin incision. The protocol includes repeated passive leg raising and fluid challenges based on stroke volume response to optimize perfusion while minimizing fluid overload. Eligible adults are ASA I–III undergoing emergency abdominal surgery, excluding those with significant cardiac disease, ongoing vasopressor therapy, pregnancy, or drug allergies. Cairo University leads the trial with no listed collaborators and site-specific execution in Cairo.
Why it matters
Potential benefit: If successful, a lower-dose norepinephrine strategy could reduce drug exposure while maintaining stable blood pressure during emergency surgery.
How similar studies have gone: Prior use of norepinephrine boluses for intraoperative hypotension is active in practice, with limited definitive dose comparisons in emergency surgery settings.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Adult patients, American Society of anesthesiologists (ASA) I-III undergoing emergency abdominal surgery Exclusion Criteria: * Severe cardiac morbidities (impaired contractility with ejection fraction \< 45%, heart block, arrhythmias, tight valvular lesions) * Patients on vasopressor infusion, * Pregnant or lactating women, * Allergy of any of the study drugs
Where it's running
-
Cairo University
Cairo, Cairo Governorate, Egypt Recruiting
Study contacts
- Study coordinator: Maha Mostafa, MD
- Email: maha.mostafa@cu.edu.eg
- Phone: +201000365115
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.