suffered one of eight complications suffered one of eight complications serious complication after the operation suffered one of eight complications one of eight complications after the operation suffered one of eight complications suffered one of eight complications one of eight complications after the operation suffered one of eight complications suffered one of eight complications one of eight complications after the operation suffered one of eight complications one of eight complications after the operation suffered one of eight complications suffered one of eight complications suffered one of eight complications suffered one of eight complications suffered one of eight complications one of eight complications after the operation suffered one of eight complications suffered one of eight complications suffered one of eight complications one of eight complications after the operation suffered one of eight complications suffered one of eight complications serious complication after the operation one of eight complications after the operation one of eight complications after the operation