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Effect of Atropine or Glycopyrrolate on the Prevention of Bradycardia During Sedation Using Dexmedetomidine in Geriatric Patients Undergoing Total Knee Replacement Under Spinal Anesthesia

NCT03322098 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 54

Last updated 2018-09-24

No results posted yet for this study

Summary

Patients undergoing total knee arthroplasty with spinal anesthesia are often sedated to reduce patient discomfort due to large noises during surgery and also to reduce anxiety. Most commonly used sedatives include propofol and midazolam, but these agents often cause hypotension or respiratory depression, especially in elderly patients. Dexmedetomidine is a selective alpha 2 adrenergic drug, which acts as a sedative and also has analgesia effects. In contrast to propofol or midazolam, dexmedetomidine rarely causes respiratory depression, and therefore is often used in critically ill patients in the ICU and also in patients undergoing simple procedures. Hemodynamically, dexmedetomidine evokes a biphasic blood pressure response with a short hypertensive phase and subsequent hypotension. Bradycardia is also observed in many patients, which may lead to more serious outcomes in elderly patients who often have multiple comorbidities. Therefore, drugs to prevent bradycardia during dexmedetomidine infusion may help patients maintain a more stable hemodynamic state. The present study aims to compare the ability of atropine and glycopyrrolate to prevent bradycardia during dexmedetomidine infusion in elderly patients undergoing knee surgery with spinal anesthesia.

Conditions

  • Spinal Anesthesia

Interventions

DRUG

Atropine

Atropine injection (0.01 mg/kg, max 0.5 mg) within 3 minutes before spinal anesthesia

DRUG

Glycopyrrolate

Glycopyrrolate (0.00 4mg/kg, max 0.2 mg) within 3 minutes before spinal anesthesia

Sponsors & Collaborators

  • Yonsei University

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
DOUBLE
Model
PARALLEL

Eligibility

Min Age
65 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2017-10-16
Primary Completion
2018-05-15
Completion
2018-05-15

Countries

  • South Korea

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 NCT03322098 on ClinicalTrials.gov