The influence of oral Ginger before operation on nausea and vomiting after cataract surgery under general anesthesia: A double-blind placebo-controlled randomized clinical trial.

This study is conducted in order to determinate the influence of ginger orally on pain, nausea and vomiting after cataract surgery under general anesthesia. The study is done in Phase II clinical trials and single-center, double-blind. The study population is volunteer’s cataract surgery patients in Tohid Hospital in Sanandaj. Based on inclusion criteria and attrition rate 129 participants are Purposefully selected. Randomization will be done using sealed envelopes and Participants are randomly allocated into two interventions and one placebo-control groups. Inclusion criteria included; surgical candidates; volunteered to participate in the study; lack of underlying chronic medical conditions; lack of nausea and vomiting; under general anesthetic with a specific drug. Exclusion criteria included cancel surgery, Patient’s withdrawal from the research, cancel surgery and unpredicted events during surgery such as cardiac arrest or patient’s death. In the first intervention group, the patients were given two capsules each of them 500 mg ginger at 6 a.m. before the operation. As of the second group, they were given two capsules each of them 500 mg ginger at 10 p.m. and 6 a.m. before the operation. In the control group, they were given a placebo capsule similar to capsules each of them 500 mg ginger at 6 a.m. before the operation. Based on Visual Analog Scale (VAS) as standard tool; severity of pain and nausea are recorded from zero to ten up to six hours after surgery. Incidences of pain, nausea and vomiting are recorded in the information sheet.

Vice chancellor for research, Kurdistan University of Medical Sciences