Histopathology of renal asphyxia in newborn piglets: Individual susceptibility to tubular changes

Table 1 Animal groups according to oxygen concentration used for resuscitation

	F. O2	Deaths	Survivors	Mean time of resuscitation (min)
Group 1	18%	3	7	5-26
Group 2	21%	1	9	7-75
Group 3	40%	2	8	12-142
Group 4	100%	3	7	30-120

Table 2 Animal groups according to time of resuscitation

	Resuscitation
	Group AFast < 15’ (%)	Group BMiddle 16-45’ (%)	Group CSlow 45-90’ (%)	Group DVery slow > 90’ (%)	Group EDeath (%)
Oedema	12.5	50	28.50	0	44.40
Eosinophilia	50	50	42.80	100	44.40
Tubular dilatation	87.50	83.30	85.70	75	100
Casts	100	100	85.70	100	88.80
Tubular vacuoles	75	83.30	42.80	75	66.60
Sloughing	75	41.60	42.80	25	55.50
Brush border fragmentation	75	41.60	42.80	25	55.50
Apoptosis	25	8.30	0	25	22.20