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Effect of Early Norepinephrine Administration During Abdominal Surgery in Elderly Patients on Postoperative Pulmonary Complications: A Prospective Randomized Controlled Trial

Effect of Early Norepinephrine Administration During Abdominal Surgery in Elderly Patients on Postoperative Pulmonary Complications: A Prospective Randomized Controlled Trial

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2600125445
Enrollment
Unknown
Registered
2026-05-27
Start date
2026-05-27
Completion date
Unknown
Last updated
2026-06-01

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

Conditions

Postoperative Pulmonary Complications

Interventions

N group :In group N, intravenous infusion of norepinephrine (concentration: 8 µg/mL) was initiated immediately after general anesthesia induction at a starting dose of 0.01µg/kg/min. The infusion rate
E group :In group E, ephedrine at a concentration of 3 mg/mL was intravenously injected based on invasive arterial blood pressure after general anesthesia induction, with an initial dose of 3 mg. Repe

Sponsors

People's Hospital of Fuyang City
Lead Sponsor

Eligibility

Sex/Gender
All
Age
65 Years to No maximum

Inclusion criteria

Inclusion criteria: 1. Patients aged 65 or above who are scheduled to undergo abdominal surgery and whose estimated operation duration is >= 2 hours; 2. American Society of Anesthesiologists (ASA) classification levels II-III; 3. Before the operation, the patient and their family members gave informed consent and signed the informed consent form.

Exclusion criteria

Exclusion criteria: 1. Emergency surgery or surgery duration > 6 hours; 2. Preoperative presence of severe cardiac, hepatic or renal dysfunction; 3. Preoperative active pulmonary infection, severe chronic obstructive pulmonary disease or requiring home oxygen therapy; 4. Those who have received intravenous infusion of norepinephrine before the surgery; 5. Patients who are unable to sign the informed consent form for any reason; 6. Those who are known to be allergic to the drugs in the study.

Design outcomes

Primary

MeasureTime frame
The incidence of postoperative pulmonary complications (PPCs) during postoperative hospitalization;MMSE score;

Secondary

MeasureTime frame
Length of hospital stay ;The incidence of AKI within 48 hours after surgery;Postoperative acute circulatory failure;The occurrence of surgical and medical complications within 30 days after surgery;Cardiac complications ;Length of ICU stay;Neurological complications ;Infectious complications;

Countries

China

Contacts

Public ContactYang Fangfang

People's Hospital of Fuyang City

Yangff0505@163.com+86 182 5536 3858

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Jun 11, 2026