 The interventions will be either bedside silo or operative attempt at closure. During attempt at primary closure, the abdomen will be closed completely if the staff anesthesiologist and surgeon agree the belly is not too tight based on ventilatory parameters, vital signs and appearance. If either the surgeon or anesthesiologist should feel the closed abdomen is too tight, a ringed silo will be placed in the operating room, the same silo used in the bedside treatment arm, and the child will continue in the study. When a silo is placed either in the operating room due to inability to close the abdomen or at the bedside, they will be managed the same way. The skin will be dressed in the standard fashion betadine jelly, xeroform and kerlix. The dressing allows visualization of the bowel. No reductions will be done the day of placement. After one night of observation a tie will be gently placed to apply downward pressure on the bowel. This pressure will not be allowed to increase the peak ventilator pressure by more than 2 cm H2O. One tie will be placed each subsequent day until the tie is within 2 cm of the skin at which point the patient will be scheduled for operative closure the day following the placement of the tie. 