Investigating the role of IL-33 in postoperative cognitive dysfunction after major abdominal surgery

Perioperative IL-33 is Associated with the Early Stage of Postoperative Neurocognitive Dysfunction After Major Abdominal Surgery

Observational First Affiliated Hospital of Kunming Medical University · NCT06704451

This study is trying to see if the inflammatory protein IL-33 is linked to memory and thinking problems after major abdominal surgery in patients.

Quick facts

Study typeObservational
Enrollment150 (estimated)
SexAll
SponsorFirst Affiliated Hospital of Kunming Medical University Academic / other
Locations1 site (Kunming, Yunnan)
Trial IDNCT06704451 on ClinicalTrials.gov

What this trial studies

This observational study aims to explore the association between the inflammatory protein IL-33 and the occurrence of postoperative neurocognitive dysfunction (PND) in patients undergoing major abdominal surgery. A total of 150 patients will be enrolled, and their neurocognitive functions will be assessed using a series of standardized questionnaires one day before and three days after surgery. Blood samples will be collected to measure IL-33 levels, allowing researchers to evaluate its potential as a biomarker for early-stage PND. The study seeks to clarify the relationship between IL-33 and cognitive outcomes in the context of gastrointestinal and hepatic surgeries.

Who should consider this trial

Good fit: Ideal candidates include patients with an American Society of Anesthesiologists status of II to IV who are scheduled for gastrointestinal or hepatic surgery.

Not a fit: Patients with a history of mental diseases, current neurological conditions, or severe preoperative cognitive dysfunction may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could identify IL-33 as a biomarker for early detection of postoperative cognitive dysfunction, potentially leading to improved patient management and outcomes.

How similar studies have performed: While the relationship between IL-33 and postoperative cognitive dysfunction is not well-established, similar studies exploring biomarkers for cognitive outcomes have shown promise, indicating potential for success.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:Patients were included if they had an American Society of Anesthesiologists status of Ⅱto Ⅳ and requiring a Gastrointestinal or a Hepatic surgery .

Exclusion Criteria:

1. history of mental diseases;
2. patients with current Neurological disease;
3. patients who refused or were unable to finish the neurocognitive evaluation;
4. preoperative Mini-Mental Stare Examination (MMSE) less than required score (illiteracy \<17; primary school \< 20; middle school and higher \< 24).

Where this trial is running

Kunming, Yunnan

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Postoperative Neurocognitive DysfunctionCognitive DysfunctionPostoperative ComplicationsNeuropsychological TestsInterleukin-33Inflammasomes
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.