Table 4.

Perioperative Data (Stage I Operation)

Local
n = 28
Remote*
n = 87
Nonresponder
n = 23
P
Value
Preoperative
 Premature delivery (<36 wk)1 (3.6%)1 (1.1%)2 (8.7%)NS
 Severe acidosis (pH <7.1)7 (25.0%)30 (34.4%)3 (13.0%)NS
 End-organ injury3 (10.7%)7 (8.0%)2 (8.7%)NS
 Clinical seizures2 (7.1%)11 (12.6%)1 (4.3%)NS
 Cardiac arrest1 (3.6%)3 (3.4%)1 (4.3%)NS
Postoperative
 Cardiac arrest1 (3.6%)3 (3.4%)0 (0%)NS
 Clinical seizures3 (10.7%)11 (12.6%)3 (13.0%)NS
  • NS indicates not significant.

  • * Remote group includes 6 patients living locally who did not participate in standardized testing.

  • Nonresponder group includes 11 patients who were lost to follow-up.

  • See text for definition.