Effect of Interscalene Block on Heart Rate Variability (HRV)

Completed

• Conditions: Shoulder Surgery; Beach Chair Position; Interscalene Block; HRV; Autonomic Nervous System

• Registration Number: NCT01185457
• Lead Sponsor: Larissa University Hospital

Brief Summary

The Left interscalene block has a different effect on heart's autonomic nervous system, as measured with Heart Rate Variability, compared to Right interscalene block

Detailed Description

Not available

Study Timeline

• Study Start: 2010-06
• Study First Submitted: 2010-08-18
• Study First Submitted QC: 2010-08-19
• Study First Posted: 2010-08-20
• Primary Completion: 2012-08
• Study Completion: 2012-09
• Status Verified: 2012-10
• Last Update Submitted: 2012-10-26
• Last Update Posted: 2012-10-29

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 50

Inclusion Criteria

• elective shoulder surgery
• Age 20- 45 years old
• ASA I - II

Exclusion Criteria

• Coagulopathy disorders
• Infection at the puncture site for the interscalene block
• Neurologic deficit in the arm that is going to be operated
• Allergy to local anesthetics
• BMI > 35
• Psychiatric disorders
• Patient's refusal
• Problems with patient communication
• Arrythmia
• Ischaemic heart disease
• Diabetes mellitus
• Thyroid function disorders
• Patients with conduction disorders on the ECG
• Electrolyte disorders (K+, Na+, Ca++)
• Patients on medication that affect the ECG

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Effect of interscalene block on Heart Rate Variability (HRV)	1 year	The Left interscalene block has different effect on heart's autonomic nervous system, as measured with HRV, than the Right.

Secondary Outcome Measures

Name	Time	Method
Interscalene block and beach chair positioning	2 years	Effect of interscalene block on bradycardia during beach chair positioning

Trial Locations

Locations (1)

Larissa University Hospital; 🇬🇷 Larissa, Thessaly, Greece