ABSTRACT
To obtain normal values of gastric emptying in normal Jordanian individuals using a simple and standardized method. The study was performed during 2005-2007 at Jordan University Hospital. Gastric emptying in 36 normal healthy subjects without gastrointestinal symptoms was assessed using standardized radioisotope scintigraphy with egg-based meal. Measured points were obtained at one hour, two hours and three hours. Lag phase and half time were calculated using a modified power exponential function. Results were analyzed for correlation of gastric retention with gender, body mass index and smoking. Median gastric retention at the first, second and third hour was 67%, 30% and 11.7% respectively. The median for lag phase and T1/2 was 15.7 minutes and 89.3 minutes respectively. For all variables examined smoking was the only factor that affected significantly gastric emptying; however its effect was limited to the first and second hours [P value 0.007, 0.026 respectively]. We obtained normal gastric emptying parameters using a simple standardized technique in Jordanian population. Our results represent the basis for future clinical and research studies in this part of the world