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Surgical complications according to the Clavien–Dindo Classification.
| Grade | Group A | Group B |
|---|---|---|
| I (No intervention) | 0 | Two cases (one controlled bleeding, one wound infection) |
| II (Need pharmacological treatment) | 0 | 0 |
| III (Need surgical intervention) | Five cases (two mucosal perforation, two incomplete pyloromyotomy, one laparotomy for a suspected perforation) | 0 |
| IV (Life threatening) | 0 | 0 |
| V (Death) | 0 | 0 |
