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Biphasic Effects of Different Doses Ephedrine on Hemodynamics in Elderly Patients Under General Anesthesia

NCT04934852 · Status: UNKNOWN · Phase: NA · Type: INTERVENTIONAL · Enrollment: 70

Last updated 2021-07-22

No results posted yet for this study

Summary

Ephedrine is commonly clinically vasoactive drugs, which can constrict blood vessels and increase blood pressure. Ephedrine can not only stimulate α receptors, but also β receptors, that's to say, it can increase heart rate, stroke volume, and cardiac output, but it also can decrease the level of systemic vascular resistance. This research aims to observe the short-term vasodilator effect of diffierent doses of ephedrine used in elderly patients under general anesthesia in clinical practice, and analyze the main reasons for this phenomenon and take preventive actions to minimize the possibility of further lowering of blood pressure to provide references for clinical rational use of drugs.

Conditions

  • Blood Pressure

Interventions

DRUG

Ephedrine

When elderly patients had hypotension (invasive blood pressure drops \>20% from the baseline value or \<100 mmHg, or MAP \<70mmHg) 20 minutes after anesthesia induction, 4 mg ephedrine in 10 ml saline was usd Intravenously

DRUG

Ephedrine

When elderly patients had hypotension (invasive blood pressure drops \>20% from the baseline value or \<100 mmHg, or MAP \<70mmHg) 20 minutes after anesthesia induction, 8 mg ephedrine in 10 ml saline was usd Intravenously

DRUG

Ephedrine

When elderly patients had hypotension (invasive blood pressure drops \>20% from the baseline value or \<100 mmHg, or MAP \<70mmHg) 20 minutes after anesthesia induction, 12 mg ephedrine in 10 ml saline was usd Intravenously

Sponsors & Collaborators

  • Yangzhou University

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
TRIPLE
Model
PARALLEL

Eligibility

Min Age
65 Years
Max Age
80 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2021-07-01
Primary Completion
2022-06-30
Completion
2022-07-30

Countries

  • China

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04934852 on ClinicalTrials.gov