# Preoperative Versus Postoperative Ultrasound-guided Rectus Sheath Block for Sleep Quality and Cytokines of Patients

> **NCT02477098** · PHASE4 · COMPLETED · sponsor: **China Medical University, China** · enrollment: 77 (actual)

## Conditions studied

- Postoperative Pain

## Interventions

- **DRUG:** preoperative 0.5% ropivacaine hydrochloride preoperative
- **DRUG:** postoperative 0.5% Ropivacaine hydrochloride

## Key facts

- **NCT ID:** NCT02477098
- **Lead sponsor:** China Medical University, China
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2015-10
- **Primary completion:** 2016-06
- **Final completion:** 2016-06
- **Target enrollment:** 77 (ACTUAL)
- **Last updated:** 2016-06-20


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT02477098

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT02477098, "Preoperative Versus Postoperative Ultrasound-guided Rectus Sheath Block for Sleep Quality and Cytokines of Patients". Retrieved via AI Analytics 2026-06-25 from https://api.ai-analytics.org/clinical/NCT02477098. Licensed CC0.

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