Effect of Thoracic Paravertebral Block on Heart Rate Variability (HRV)

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Total Enrollment

100 participants

Study Classification

OBSERVATIONAL

Study Start Date

2014-12-31

Study Completion Date

2016-07-31

Brief Summary

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

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Detailed Description

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Conditions

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Breast Surgery Thoracic Paravertebral Block HRV Autonomic Nervous System

Study Design

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Observational Model Type

CASE_CONTROL

Study Time Perspective

PROSPECTIVE

Study Groups

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Left thoaracic paravertebral block

Surgery in the left breast under left thoracic paravertebral block and HRV

Left thoracic paravertebral block

Intervention Type OTHER

Right thoracic paravertebral block and HRV

Surgery in the right breast under right thoracic paravertebral block and HRV

Right thoracic paravertebral block

Intervention Type OTHER

Interventions

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Left thoracic paravertebral block

Intervention Type OTHER

Right thoracic paravertebral block

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Elective breast surgery
* Age 20 - 65 years
* ASA I - II

Exclusion Criteria

* Coagulopathy disorders
* Infection at the puncture site for the thoracic paravertebral block
* Severe kyphoscoliosis
* 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

Minimum Eligible Age

20 Years

Maximum Eligible Age

65 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No