Table 5.

Improvement of symptoms after operation

Symptom	Preoperative status	Postoperative status	P value
abdominal pain	45 (78.9%)	2 (3.5%)	<0.001
nausea	19 (33.3%)	1 (1.8%)	<0.001
premature satiety after meal	16 (28.1%)	1 (1.8%)	<0.001