# Erector Spinae Block Versus Thoracic Paravertebral Block for Postoperative Pain Control After Open Nephrectomy

> **NCT04719507** · NA · UNKNOWN · sponsor: **Cairo University** · enrollment: 45 (estimated)

## Conditions studied

- Pain, Postoperative

## Interventions

- **PROCEDURE:** erector spinae block
- **PROCEDURE:** thoracic paravertebral block
- **DRUG:** Pethidine Only Product in Parenteral Dose Form

## Key facts

- **NCT ID:** NCT04719507
- **Lead sponsor:** Cairo University
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** UNKNOWN
- **Start date:** 2021-01
- **Primary completion:** 2022-01
- **Final completion:** 2022-03
- **Target enrollment:** 45 (ESTIMATED)
- **Last updated:** 2021-01-22


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04719507

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04719507, "Erector Spinae Block Versus Thoracic Paravertebral Block for Postoperative Pain Control After Open Nephrectomy". Retrieved via AI Analytics 2026-05-27 from https://api.ai-analytics.org/clinical/NCT04719507. Licensed CC0.

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