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Comparison of the effect of intra-cuff normal saline, dexamethasone or ketamine for prevention of postoperative sore throat: A randomized controlled trial.

Arun Mukesh, Ankur Sharma, Priyabrat Karan, Darshna Rathod, Shilpa Goyal, Kamlesh Kumari, Manbir Kaur, Tanvi Meshram, Pradeep Bhatia

Brazilian journal of anesthesiology (Elsevier) June 13, 2025 DOI: 10.1016/j.bjane.2025.844651 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Randomized controlled trial Peer reviewed
Sample size 405
Population Adult patients aged 18–60 years undergoing short pelvic laparoscopic surgeries under general anesthesia requiring endotracheal intubation
Interventions Intra-cuff Dexamethasone Intra-cuff Ketamine Intra-cuff normal saline
Duration 24 hours after extubation
Topics Ketamine Esketamine
Keywords Cough Hoarseness Postoperative pain management Anesthesia Endotracheal intubation Surgical recovery Dexamethasone therapy
Key findings Intra-cuff dexamethasone resulted in a higher proportion of patients without postoperative sore throat (92.59%) at 2 hours compared to intra-cuff ketamine (74.07%) or normal saline (67.41%), and consistently reduced hoarseness and cough.

Abstract

Postoperative Sore Throat (POST) may result in patient dissatisfaction and distress, which could possibly delay discharge. Various pharmacological and non-pharmacological approaches have been explored, yet effective techniques remain elusive. This research evaluates the impact of intra-cuff Dexamethasone, Ketamine, and normal saline on alleviating POST symptoms. In this randomized controlled trial, 405 adult patients aged 18‒60 years undergoing short pelvic laparoscopic surgeries under general anesthesia for 1‒3 hours requiring endotracheal intubation were enrolled. Patients were randomized into Group N (intra-cuff normal saline), Group D (intra-cuff Dexamethasone), and Group K (intra-cuff Ketamine). The primary outcome of this study was the incidence and severity of POST at 2-, 6-, 12-, and 24-hours after extubation. Secondary outcomes were the incidence and severity of postoperative hoarseness of voice and postoperative cough at various time intervals. There were more patients in Group D without symptoms of POST (92.59%) than in Group K (74.07%) and Group N (67.41%) (p < 0.0001) at 2 hours. Similarly, more patients had no symptoms of postoperative hoarseness of voice (93.33%) and postoperative cough (93.33%) in Group D at 2 hours. Furthermore, Group D consistently exhibited the lowest incidence of POST, postoperative hoarseness of voice, and postoperative cough at various time intervals. Intra-cuff Dexamethasone appears to be a favourable intervention for symptom alleviation of POST, postoperative hoarseness of voice, and postoperative cough during the early postoperative period. CTRI/2022/08/044664.

Comparable studies

Other randomized controlled trials on ketamine, most cited first.

Study Year Design Participants
Subanesthetic Effects of the Noncompetitive NMDA Antagonist, Ketamine, in Humans Healthy human subjects recruited from the community 1994 Randomized controlled trial n = 19
Antidepressant Efficacy of Ketamine in Treatment-Resistant Major Depression: A Two-Site Randomized Controlled Trial Patients with treatment-resistant major depression experiencing a major depressive episode 2013 Randomized controlled trial n = 73
Remifentanil-induced Postoperative Hyperalgesia and Its Prevention with Small-dose Ketamine Patients undergoing major abdominal surgery 2005 Randomized controlled trial n = 75
Efficacy of Intravenous Ketamine for Treatment of Chronic Posttraumatic Stress Disorder Patients with chronic PTSD related to a range of trauma exposures 2014 Randomized controlled trial n = 41
Ketamine-Induced Deficits in Auditory and Visual Context-Dependent Processing in Healthy Volunteers Healthy volunteers 2000 Single-blind placebo-controlled study n = 20

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