Impact of Lithium on Sleep and Cognitive Function After Heart Valve Surgery

Effect of Lithium Carbonate on Postoperative Sleep and Cognitive Function in Patients Undergoing Heart Valve Surgery With Cardiopulmonary Bypass

Phase 4 Interventional China Medical University, China · NCT05593627

This study is testing if giving lithium after heart valve surgery can improve sleep quality and brain function for patients recovering from the procedure.

Quick facts

PhasePhase 4
Study typeInterventional
Enrollment62 (estimated)
Ages18 Years to 65 Years
SexAll
SponsorChina Medical University, China Academic / other
Locations1 site (Shenyang, Liaoning)
Trial IDNCT05593627 on ClinicalTrials.gov

What this trial studies

This study evaluates the effects of lithium carbonate on postoperative sleep quality and cognitive function in patients undergoing heart valve surgery with cardiopulmonary bypass. It is a prospective, randomized, controlled trial where participants will receive either lithium carbonate or calcium carbonate after surgery. The primary outcome will be assessed through polysomnography to measure sleep duration on the second postoperative night, alongside cognitive assessment using the Mini-Mental State Examination on the seventh postoperative day.

Who should consider this trial

Good fit: Ideal candidates are ethnic Chinese adults aged 18 to 65 undergoing heart valve surgery with cardiopulmonary bypass.

Not a fit: Patients with preoperative sleep issues, cognitive difficulties, or certain medical histories may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could improve postoperative sleep quality and cognitive function in heart valve surgery patients.

How similar studies have performed: While lithium's effects on sleep have been noted, this specific application in postoperative heart valve surgery is novel and has not been extensively tested.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Ethnic Chinese;
* Age, 18 to 65 years old;
* Patients undergoing heart valve surgery with cardiopulmonary bypass

Exclusion Criteria:

* Preoperative Pittsburgh Sleep Quality Index global scores higher than 6
* Cognitive difficulties
* Partial or complete gastrectomy
* Previous esophageal surgery
* Previous treated by radiotherapy or surgery
* Inability to conform to the study's requirements
* Body mass index exceeding 30 kg/m2
* Deprivation of a right to decide by an administrative or juridical entity
* Ongoing participation or participation in another study \<1 month ago
* Recent (\< 3 months prior) use of antibiotics, probiotics, prebiotics, symbiotics, hormonal medication, laxatives, proton pump inhibitors, insulin sensitizers or traditional Chinese medicine

Where this trial is running

Shenyang, Liaoning

Study contacts

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 Heart Valve Surgerylithium carbonatepolysomnography
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.