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Effect of es-ketamine for postoperative analgesia on postoperative gastrointestinal dysfunction in elderly colorectal cancer: a prospective, single-center, randomized, controlled study

Effect of es-ketamine for postoperative analgesia on postoperative gastrointestinal dysfunction in elderly colorectal cancer: a prospective, single-center, randomized, controlled study

Status
Active, not recruiting
Phases
Phase 4
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2300070051
Enrollment
Unknown
Registered
2023-03-31
Start date
2023-04-01
Completion date
Unknown
Last updated
2023-05-29

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

Conditions

colorectal cancer

Interventions

E-S group:1.5 mg/kg es-ketamine plus 3 µg/kg for postoperative venous self-controlled analgesia
S group:3 µg/kg for postoperative venous self-controlled analgesia

Sponsors

Dazhou Central Hospital
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) Patients planned to undergo elective colorectal resection under general anesthesia; 2) Age= 60 years old

Exclusion criteria

Exclusion criteria: a) refuse to participate in the study; b) ASA grade IV and above; c) poorly controlled or untreated hypertensive patients (systolic/diastolic blood pressure at rest > 180/100 mmHg); d) unstable angina or myocardial infarction within the last 6 months; e) severe liver and kidney dysfunction; f) severe cognitive impairment, inability to complete delirium evaluation, neurological lesions, inability to cooperate with delirium evaluation; g) Those who are allergic to the drug ingredients of es-ketamine, sufentanil and ondansetron; h) Those who are receiving opioids for pain; i) alcohol or opioid addiction; j) refusal of the use of venous controlled analgesia.

Design outcomes

Primary

MeasureTime frame
Duration of postoperative ileus: time from the end of surgery to the first postoperative bowel movement;

Secondary

MeasureTime frame
Postoperative 24h, 48h, 72h VAS scores;Opioid dosage within 72 hours after surgery;Incidence of awakening and postoperative delirium;

Countries

China

Contacts

Public ContactYou Hongjiang

Dazhou Central Hospital

zhuzhi427@163.com18881880518

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026