其他摘要：Introduction: Endoscopic examination of gastrointestinal (GI) system is a diagnostic and therapeutic instrument in children. Endoscopy usually encounters some difficulties because of intensive and spastic response of GI muscles during endoscopic examination. So this study aimed to assess the effect of peppermint essence on satisfaction of patient and therapeutic team during endoscopic examination. Materials and Methods: This clinical trial study was conducted on 120 children less than 14 years who affected to pyloric spasm under endoscopy. Patients were randomly divided into two groups. Control group (n=60) received placebo and case group (n=60) received peppermint essence. Data were analyzed by descriptive- analytic (Mann–Whitney test, T-test, correlation) statistics and using SPSS 11.5. Results: More than half of case group (73.3%) were satisfied with endoscopy process, while 51.6% of control group were dissatisfied. Mean of endoscopy duration time was 9.30±0.35 min in peppermint group and 10.14±0.34 min in control group; which it had a significant difference in two groups (P
