From 1982, the abdominal surgery department of Hospital No 103 had applied Gastropneumography to diagnose suspecting gastroduodenal perforation patients without subphrenic sickle-air. Volume air was pumped into stomach through nasogastrotube from 700 ml to 1000 ml. The technique gave determined diagnosis of perforation and operating indication early which helped to restrict complication of perforation. The sensitivity of technique was 82.6%. There was no noticeable catastrophe that involved in technique in this study
Peptic Ulcer Perforation ; Diagnosis