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Effect of Ester on Intraoperative Respiratory Depression in Elderly Patients with ERCP: A Randomized Clinical Trial

Effect of Ester on Intraoperative Respiratory Depression in Elderly Patients with ERCP: A Randomized Clinical Trial

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2600125608
Enrollment
Unknown
Registered
2026-05-28
Start date
2026-06-01
Completion date
Unknown
Last updated
2026-06-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None

Interventions

Esketamine group:Esketamine 0.4mg/kg
Nalbuphine group:Nalbuphine 0.2mg

Sponsors

Shanghai Dongfang Hospital
Lead Sponsor

Eligibility

Sex/Gender
All
Age
65 Years to No maximum

Inclusion criteria

Inclusion criteria: Patients with an ASA grade III-IV age >= 65 years who intend to undergo ERCP.

Exclusion criteria

Exclusion criteria: 1. Patients with a history of mental illness taking antipsychotic drugs; 2. Damage or disease of the central nervous system; history of epilepsy; 3. Patients with a history of abuse or addiction to anesthetic analgesics or sedatives, such as ketamine or opioids; patients with alcohol abuse; 4. Patients with allergies to dexmedetomidine, esketamine, or soybean or those with contraindications; 5. Patients with visual impairment; patients with inability to elevate intraocular pressure; patients with glaucoma; 6. Concomitant medications prohibited in clinical trials involving esketamine, which may affect efficacy and safety assessments (e.g., aminophylline or theophylline); 7. Use drugs that affect the hepatic and renal metabolism of esketamine, such as hepatic enzyme inhibitors like chlorpromazine; 8. Patients with severe decompensated liver or renal function; 9. Patients at high risk of elevated blood pressure or intracranial pressure; patients with poorly controlled or untreated hypertension (arterial hypertension, resting systolic/diastolic blood pressure exceeding 180/100 mmHg); 10. Patients with hyperthyroidism; 11. Unstable angina or myocardial infarction within the past 6 months; a history of severe angina; congestive heart failure; 12. The researchers determine that the subjects, including but not limited to those with impaired major organ functions and/or severe systemic diseases, are unsuitable for participation in this clinical study.

Design outcomes

Primary

MeasureTime frame
The incidence of hypoxia-related adverse events during sedation: SpO2 < 95%;

Secondary

MeasureTime frame
Severe decrease in pulse oxygen saturation (SpO2= 20% of baseline);severe hypertension (MBP increase >= 20% of baseline);The main risk factors for intraoperative respiratory depression;

Countries

China

Contacts

Public ContactXinge Lu

Shanghai Dongfang Hospital

luxinge95@163.com+86 131 9044 4310

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Jun 11, 2026