Post-operation: sepsis 76.8%; pneumonia 14.5%; postoperative wound infection 5.8%; intestinal obstruction 4.3%; necrotizing enterocolitis 2.9%; first feeds by13.8 ± 5.8 days; reached full feeds by 27.6 ± 13.1 days and discharged by 30.1 ± 9.5 days.