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

Effect of Thoracic Paravertebral Block on the Autonomous System as Measured by Heart Rate Variability (HRV)

Status

UNKNOWN

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT01755910

Enrollment

100

Registered

2012-12-24

Start date

2014-12-31

Completion date

2016-07-31

Last updated

2014-07-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Autonomic Nervous System, Breast Surgery, HRV, Thoracic Paravertebral Block

Keywords

Breast Surgery, Thoracic Paravertebral Block, HRV, Autonomic Nervous System

Brief summary

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

Interventions

OTHERLeft thoracic paravertebral block

OTHERRight thoracic paravertebral block

Study design

Observational model

CASE_CONTROL

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

FEMALE

Age

20 Years to 65 Years

Healthy volunteers

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

Design outcomes

Primary

Measure	Time frame	Description
Effect of thoracic paravertebral block on Heart Rate Variability (HRV)	30 min after the application of the thoracic paravertebral block	The Left thoracic paravertebral block has different effect on heart's autonomic nervous system, as measured with HRV, than the Right.

Countries

Greece

Contacts

Primary ContactMarina Simaioforidou, Medicine

msimaiof@otenet.gr00306972202573

Backup ContactGeorge Vretzakis, Medicine

gvretzakis@yahoo.com00302413502952

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026