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Effects of opioid-free versus ordinary general anesthesia on post-induction hypotension in patients undergoing elective noncardiac surgery: a randomized clinical trial

Effects of opioid-free versus ordinary general anesthesia on post-induction hypotension in patients undergoing elective noncardiac surgery: a randomized clinical trial

Status
Active, not recruiting
Phases
Early Phase 1
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2400079898
Enrollment
Unknown
Registered
2024-01-15
Start date
2024-01-15
Completion date
Unknown
Last updated
2024-01-22

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

Conditions

noncardiac surgery

Interventions

OFA:Lidocaine 1.5mg/kg and ketamine 0.15mg/kg were administered intravenously, and maintained by pumping at 2mg/(kg · h) and 0.1mg/(kg · h), respectively.
OA:Administer sufentanil at 0.3ug/kg and pump remifentanil at 0.1ug/kg ·min for maintenance.

Sponsors

Yichang Central People's Hospital
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 65 Years

Inclusion criteria

Inclusion criteria: 1. Age: = 18 years old; 2. ASA level I to III; 3. Choose a scheduled non cardiac surgery; 4. The patient or their legal representative signs an informed consent form; 5. Planned to receive an arterial line during surgery; 6. Planned for elective non-cardiac non-day surgery with an expected duration of more than 2 hours.

Exclusion criteria

Exclusion criteria: Patients with heart failure, severe cardiac shunt, severe aortic stenosis, and severe arrhythmia were excluded. Patients with preoperative hypertension (MAP >100 mm Hg) or hypotension (MAP <65 mm Hg) and those requiring dialysis were also excluded. Patients scheduled for liver or vascular surgery were excluded due to the use of vascular clamping.

Design outcomes

Primary

MeasureTime frame
MAP during induction of anesthesia;HR during induction of anesthesia;Time weighted average of hypotension during induction of anesthesia;Time weighted average of hypertension during induction of anesthesia;The incidence of hypotension during induction of anesthesia;Incidence of hypertension during induction of anesthesia;

Secondary

MeasureTime frame
VAS score;Nausea and vomiting;extubation time;Average dose of norepinephrine;Average dose of atropine;Time spent in hypotension;Time spent in hypertension;Percentage of time in hypertension;Percentage of time in hypotension;

Countries

China

Contacts

Public ContactGong Yuan

Yichang Central People's Hospital

gy-yc@163.com+86 139 8674 6821

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026