[Selected parameters of mechanical ventilation of the newborn infants after PDA surgical ligation].

In the above study we introduced initial results of pulmonary function measurements (PFM) in newborns with respiratory distress syndrome, after a surgical ligation of persistent ductus arteriosus (PDA). Material comprised seven newborns admitted in Department of Neonatology University of Medical Sciences in Poznań. Mean birth weight of our patient was 1072.9 +/- 187.1 g, and average maturity was 27.0 +/- 1.6. Diagnosis of PDA was established on the basis of clinical and Doppler examination. PFM was carried out with pneumotachometric method by VenTrak station immediately before and during 24 hours after the surgical intervention. Only mechanical breaths were analysed. We noted significantly higher values of dynamic compliance (Cdyn) and lower mean airways pressure (MAP) after ligation of PDA. The drop of resistance of airways (Raw) was small and had no statistical value.