Clinical trial Recruiting at 1 site Interventional Ages 21 to 65

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 typeInterventional
Ages21 Years to 65 Years
SexAll
Enrollment136 (estimated)
SponsorCairo University
Academic / other
Locations1 site (Cairo, Cairo Governorate)
StatusRecruiting
StartedAugust 4, 2026
Main results expectedDecember 2026
Study endsDecember 2026
Registry record updatedAugust 5, 2026
Trial IDNCT07719075 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

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.