Comparing ketamine and magnesium sulfate for faster awakening after anesthesia

Ketamine Versus Magnesium Sulfate in the Time and Awakening Quality of General Anesthesia. Randomized Clinical Study.

Not applicable Interventional University of Sao Paulo General Hospital · NCT04360473

This study is testing whether ketamine or magnesium sulfate can help people wake up faster and feel better after surgery to remove the gallbladder.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment140 (estimated)
Ages18 Years to 70 Years
SexAll
SponsorUniversity of Sao Paulo General Hospital Academic / other
Locations1 site (Santos, São Paulo)
Trial IDNCT04360473 on ClinicalTrials.gov

What this trial studies

This trial aims to evaluate the effects of ketamine and magnesium sulfate on the quality and time of awakening in patients undergoing laparoscopic cholecystectomy. Participants will be divided into four groups, receiving either a placebo, ketamine, magnesium sulfate, or a combination of both prior to anesthesia. The primary outcomes include the time taken to reach a specific level of consciousness and cognitive function assessed three hours post-anesthesia. Secondary outcomes will focus on pain management and opioid consumption during the initial postoperative period.

Who should consider this trial

Good fit: Ideal candidates are patients scheduled for laparoscopic cholecystectomy who can provide informed consent.

Not a fit: Patients with coronary disease, severe obesity, or a history of psychiatric disorders may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved recovery times and enhanced patient satisfaction following laparoscopic cholecystectomy.

How similar studies have performed: Previous studies have shown promising results with similar approaches using ketamine and magnesium sulfate for postoperative pain management.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* patients scheduled to undergo laparoscopic cholecystectomy, agreement to voluntarily participate in the trial and sign the free and informed consent form.

Exclusion Criteria:

* Coronary disease, ventricular atrial block II or worse, with renal failure , previous history of brain disease, dementia or other psychiatric diseases, and patients with a body mass index\> 35 kg / m² , allergy to any products used in the trial, preoperative use of opioids or corticosteroids.

Where this trial is running

Santos, São Paulo

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 Awakening, Post-Anesthesia Delayedpostoperative awakeninggeneral anesthesiamagnesium sulfateketamine
Last reviewed 2026-06-10 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.