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

> **NCT01755910** · — · UNKNOWN · sponsor: **Larissa University Hospital** · enrollment: 100 (estimated)

## Conditions studied

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

## Interventions

- **OTHER:** Left thoracic paravertebral block
- **OTHER:** Right thoracic paravertebral block

## Key facts

- **NCT ID:** NCT01755910
- **Lead sponsor:** Larissa University Hospital
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** UNKNOWN
- **Start date:** 2014-12
- **Primary completion:** 2015-12
- **Final completion:** 2016-07
- **Target enrollment:** 100 (ESTIMATED)
- **Last updated:** 2014-07-10


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01755910

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01755910, "Effect of Thoracic Paravertebral Block on Heart Rate Variability (HRV)". Retrieved via AI Analytics 2026-05-28 from https://api.ai-analytics.org/clinical/NCT01755910. Licensed CC0.

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*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*