Page 128 - Physiological based CPAP for preterm infants at birth Tessa Martherus
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Chapter 5
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Table 2. Parameters of physiology and respiratory effort in the delivery room PB-CPAP
5-8 cmH2O CPAP (n=19)
P-value
Physiological parameters SpO2 (%)
Min 2-5 after birth a
Min 2-10 after birth b
SpO2>80%at5min after birth (%)*c Duration of hypoxia 5 min after birth (%) b Duration of hypoxia 10 min after birth (%) b
61 (49-70) 76 (67-86) 4/7 (57%) 34 (27-58) 62 (34-87)
64 (47-74) 80 (65-82) 7/17 (42%) 34 (22-65) 59 (38-82)
0.973 0.815 0.659 1.000 1.000
FiO2 (%)
Min 2-5 after birth b Min 2-10 after birth b
55 (37-71) 49 (41-73)
49 (31-65) 65 (36-77)
0.585 1.000
SpO2/FiO2 ratio
Min 2-5 after birth b Min 2-10 after birth b
1.08 (0.79-1.18) 1.79 (1.19-1.96)
1.50 (0.94-2.43) 1.37 (0.94-2.50)
0.549 0.798
Heart rate (bpm)
Min 2-5 after birth b
Min 2-10 after birth b
Heart rate exceeds 100 bpm (min:sec) b
121 (111-130)
135 (127-141) 03:01 (01:40-03:19)
97 (82-119)
123 (107-136) 04:13 (02:25-05:07)
0.016 0.075 0.005
Parameters of respiratory effort Breathing rate (breaths/min)
Min 2-5 after birth b Min 2-10 after birth b
29 (17-39) 37 (20-42)
23 (17-29) 28 (24-33)
0.389 0.458
(n=8)
