Results:
The four rounds of the consensus procedure garnered participation from 31, 33, 31, and 29 individuals, respectively. A significant majority (97%) agreed on the necessity of reaching a consensus. Initially, 91 markers were suggested, eventually leading to the agreement on six overarching markers and their corresponding measurement instruments, as presented in Table 1.
Table 1
A Using INTERGROWTH-21ST newborn size charts(1)
B According to Delphi consensus definition(2)
C Severe brain injury diagnosed < 7 days of life; therapeutically cooled/decreased central tone/comatose/seizures of any kind/ amplitude integrated electroencephalography abnormality <24 hours of birth.
D Using ISSHP definition(3) (amended: ‘despite maintenance treatment with multiple (instead of 3 ) antihypertensive agents’, plus pre-eclampsia arising at less than 34 weeks gestation)
E Using the Amsterdam consensus criteria(4) or Freedman classification.