Comparison of effects of cervical plexus block on intraoperative analgesia in patients undergoing carotid endarterectomy - using Analgesia nociception index (ANI)

Not Applicable

Conditions: Diseases of the circulatory system

Registration Number: KCT0009070

Lead Sponsor: Samsung Medical Center

Brief Summary: Not available

Detailed Description: Not available

Recruitment & Eligibility

Status: ot yet recruiting

Sex: All

Target Recruitment: 44

Inclusion Criteria

Adult patients receiving selective carotid endarterectomy under general anesthesia (age 20 to 80)
Physical status according to American Society of Anesthesiologists (ASA class I- III)
A person who agrees to a clinical trial and signs a subject consent form

Exclusion Criteria

Children under 19 years of age, adults over 80 years of age
Patients with neurological abnormalities
Patients with bleeding abnormalities or disorders
Patients who cannot undergo nerve block surgery due to recent systemic or partial infection
Patients who have taken opioids for a long time or have a history of severe side effects from opioids
Patients allergic to local anesthetics
Patients with failed cervical plexus block
Patients in whom ANI measurement was not possible due to persistent arrhythmia
Patients who have had a pacemaker inserted or a heart transplant
Persons deemed unsuitable for participation in clinical trials in the judgment of the researcher

Study & Design

Study Type: Interventional Study

Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Average value of intraoperative ANI

Secondary Outcome Measures

Name	Time	Method
Frequency of intraoperative ANI falling below 50;Average value of ANI for 5 minutes immediately after surgery;Types and doses of narcotic analgesics used during surgery;Pain scores in the intensive care unit at rest after surgery;Pain scores in the intensive care unit when moving after surgery;Time of first narcotic analgesic administered after surgery;Amount of narcotic analgesic administered within 24 hours after surgery end;Frequency of nausea or vomiting in the 24 hours after surgery end;Satisfaction with pain control after surgery ;Satisfaction with sleep on the first night after surgery;Post-anesthesia recovery questionnaire score 24 hours after surgery(QoR-15K) ;Frequency of postoperative complications (hoarseness, neurologic complication, recurrent laryngeal nerve block);Cerebral hyperperfusion syndrome