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Table 2 Causes of failure of the test at 28 DOL

From: A modified physiologic test for bronchopulmonary dysplasia: a clinical tool for weaning from CPAP and/or oxygen-therapy the premature babies?

Cause of failure

Baseline (N 3)

Challenge (N 10)

Post-test (N 4)

Apnea

0

0

1

Bradycardia

1

0

1

SpO2 80–90% with TcPO2 < 50 mmHg for 5’

0

4

1

SpO2 < 80% for 1’

2

6

1