Study of efficacy of combination of dexamethasone and ondansetron versus ondansetron alone using SAMBA guidelines for postoperative nausea and vomiting in laparoscopic cholecystectomy.


  • Ali Arslan Munir CMH Gilgit.
  • Abeera Zareen Holy Family Hospital Rawalpindi.
  • Sumbal Rana CMH Gilgit.



Dexamethasone, Laparoscopic Cholecystectomy, Ondansetron, Postoperative Nausea, Vomiting


Objectives: Comparing the effectiveness of combining ondansetron and dexamethasone vs ondansetron unaided in amounts suggested by SAMBA strategies for stoppage of post-operative nausea and vomiting in laparoscopic cholecystectomy patients. Study Design: Randomized Control trial. Setting: Department of Anaesthesia, Combined Military Hospital, Rawalpindi. Period: Six months (April 2015–October 2015). Material & Methods: A sum of 160 patients were experimented by taking 80 in every group. Group A: of ondansetron. Group B: ondansetron plus dexamethasone. Significance level: 5% Test power: 80% Proportion of the projected population A is 72%1. Foreseen population percentage B is 88%1. Besides successive non-probability specimen system was taken for sample gathering. Patients who were selected were American society of anesthesiologists 1 & 2 while ones with struggle in communiqué e.g. psychologic issues, memory loss, loss of speech etc, pregnant and menstruating ladies3, known of PONV, motion disease, ear problems and vertigo, on long term steroid use3, anguished from diabetes mellitus, hiatal hernia were excluded. The frequency of side effects were duly scribed down and doses of drugs wrote down. Rescue anti vomiting was secondhand for ones of PONV. Results: We deduced that mixture of ondansetron & dexamethasone was effectual in averting post-operative nausea & vomiting equated to Ondansetron unaided. Conclusion: There is variance in incidence of PONV in mutual clusters with combination remedy of ondansetron plus dexamethasone being safer as equated to Ondansetron unaided.

Author Biographies

Ali Arslan Munir, CMH Gilgit.

MBBS, FCPS (Anesthesia)

Graded Anesthetist

Abeera Zareen, Holy Family Hospital Rawalpindi.

MBBS, FCPS (Anesthesia), M.Sc Pain

Senior Registrar

Sumbal Rana, CMH Gilgit.

MBBS, FCPS (Anesthesia)

Classified Anesthetist