Case Control Study
Copyright ©The Author(s) 2018.
World J Gastrointest Endosc. Sep 16, 2018; 10(9): 193-199
Published online Sep 16, 2018. doi: 10.4253/wjge.v10.i9.193
Table 1 Patient characteristics
CharacteristicsValues
Age median (range); yr51 (42-66)
Sex male (%)35 (41)
BMI median (range); kg/cm220.6 (18.6-22.8)
Preoperative symptoms; n (%)
Weight loss44 (51)
Chest pain51 (59)
Dysphagia84 (98)
Regurgitation78 (91)
Previous interventions; n (%) (overlapping)
None44 (51)
Pharmacological therapy21 (24)
Endoscopic pneumatic balloon dilation20 (23)
Surgical myotomy4 (5)
Diagnosis; n (%)
Esophageal achalasia80 (93)
Jackhammer esophagus5 (6)
Diffuse esophageal spasm1 (1)
Preoperative Eckardt score median (range); point6 (4-7)