Effect of Interscalene Block on Heart Rate Variability (HRV)

Larissa University Hospital50 enrolled

Overview

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

Study Type

OBSERVATIONAL

Enrollment

Conditions

Shoulder Surgery Beach Chair Position Interscalene Block HRV Autonomic Nervous System

Eligibility

Sex: ALLMin age: 20 YearsMax age: 45 Years

Medical Language ↔ Plain English

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

Locations (1)

Larissa University Hospital

Larissa, Thessaly, Greece

Outcomes

Primary Outcomes

Effect of interscalene block on Heart Rate Variability (HRV)

The Left interscalene block has different effect on heart's autonomic nervous system, as measured with HRV, than the Right.

Time frame: 1 year

Secondary Outcomes

Interscalene block and beach chair positioning

Effect of interscalene block on hypotension during beach chair positioning

Time frame: 2 years

Interscalene block and beach chair positioning

Effect of interscalene block on bradycardia during beach chair positioning

Time frame: 2 years

Data from ClinicalTrials.gov

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