# Erector Spinae Plane Block Versus Paravertebral Block in Mastectomy

> **NCT03490006** · PHASE4 · WITHDRAWN · sponsor: **University of Texas Southwestern Medical Center**

## Conditions studied

- Postoperative Pain

## Interventions

- **PROCEDURE:** Erector Spinae Plane Block
- **PROCEDURE:** Paravertebral Block

## Key facts

- **NCT ID:** NCT03490006
- **Lead sponsor:** University of Texas Southwestern Medical Center
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** WITHDRAWN
- **Start date:** 2018-08
- **Primary completion:** 2020-08
- **Final completion:** 2020-10
- **Target enrollment:** 0 (ACTUAL)
- **Why stopped:** Insufficient resources to complete study requirements
- **Last updated:** 2018-10-12


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03490006

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03490006, "Erector Spinae Plane Block Versus Paravertebral Block in Mastectomy". Retrieved via AI Analytics 2026-08-11 from https://api.ai-analytics.org/clinical/NCT03490006. Licensed CC0.

---

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