# Ultrasound Guided ESP Block Versus Intrathecal Morphine for Postoperative Analgesia in Major HPB Surgery.

> **NCT04635644** · NA · COMPLETED · sponsor: **Assiut University** · enrollment: 40 (actual)

## Conditions studied

- Postoperative Pain

## Interventions

- **PROCEDURE:** Erector Spinae Plane Block
- **PROCEDURE:** Intrathecal morphine

## Key facts

- **NCT ID:** NCT04635644
- **Lead sponsor:** Assiut University
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2021-11-15
- **Primary completion:** 2023-02-15
- **Final completion:** 2023-03-15
- **Target enrollment:** 40 (ACTUAL)
- **Last updated:** 2023-05-22


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04635644

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04635644, "Ultrasound Guided ESP Block Versus Intrathecal Morphine for Postoperative Analgesia in Major HPB Surgery.". Retrieved via AI Analytics 2026-05-28 from https://api.ai-analytics.org/clinical/NCT04635644. Licensed CC0.

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