# Effect of Opioid-free Anaesthesia on Postoperative Delirium in Elderly Patients Undergoing Gastrointestinal Surgery

> **NCT06958393** · PHASE4 · NOT_YET_RECRUITING · sponsor: **Qianfoshan Hospital** · enrollment: 406 (estimated)

## Conditions studied

- Delirium - Postoperative
- Opioid-Free Anaesthesia

## Interventions

- **DRUG:** Dexmedetomidine
- **DRUG:** Esketamine
- **DRUG:** Esmolol
- **DRUG:** Sufentanil
- **DRUG:** Remifentanil

## Key facts

- **NCT ID:** NCT06958393
- **Lead sponsor:** Qianfoshan Hospital
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** NOT_YET_RECRUITING
- **Start date:** 2025-05-20
- **Primary completion:** 2026-01-05
- **Final completion:** 2026-05-12
- **Target enrollment:** 406 (ESTIMATED)
- **Last updated:** 2025-05-06


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT06958393

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT06958393, "Effect of Opioid-free Anaesthesia on Postoperative Delirium in Elderly Patients Undergoing Gastrointestinal Surgery". Retrieved via AI Analytics 2026-06-09 from https://api.ai-analytics.org/clinical/NCT06958393. Licensed CC0.

---

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