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Background: The cranial osteopathic manipulative medicine has been shown to alter regional cerebral tissue oxygenation (cStO2) in adult patients; however, there are no reports regarding the neonatal population., Objectives: To assess the influence of compression of the 4th ventricle (CV4) osteopathic procedure on cStO2 in neonates., Material and Methods: Thirty-one patients born between 25 and 39 weeks of gestation were screened for inclusion in the neonatal unit. Twenty-two infants presenting with hyperstimulation of autonomous nervous system (ANS) according to the Neonatal Behavioral Assessment Scale were enrolled in the study. Near-infrared spectroscopy was used for continuous cStO2 monitoring; pulse oximeter oxygen saturation (SpO2) and heart rate (HR) measured with pulse oximetry were simultaneously monitored 10 min before CV4, during the therapy and 10 min after it was stopped., Results: Patients' condition remained stable throughout the study. There were no significant differences in the mean cStO2 values recorded before (69 ±8%), during (69 ±8%) and after CV4 (70 ±8%; p > 0.05). Mean SpO2 was almost constant during the study (96 ±4% before, 95 ±3% during and 95 ±4% after the intervention). Heart rate was also stable pre-, during and post-therapy (153 ±21 min, 151 ±18 min and 151 ±20/min, respectively)., Conclusions: Compression of the 4th ventricle osteopathic procedure does not influence the cStO2 in newborns. This method seems to be well-tolerated but its clinical efficacy needs to be further investigated in this group of patients.

Background: Alveolar capillary dysplasia (ACD) is a rare cause of severe pulmonary hypertension and respiratory failure in neonates. The onset of ACD is usually preceded by a short asymptomatic period. The condition is refractory to all available therapies as it irreversibly affects development of the capillary bed in the lungs. The diagnosis of ACD is based on histopathological evaluation of lung biopsy or autopsy tissue or genetic testing of FOXF1 on chromosome 16q24.1. Here, we describe the first two Polish patients with ACD confirmed by histopathological and genetic examination., Case Presentation: The patients were term neonates with high Apgar scores in the first minutes of life. They both were diagnosed prenatally with heart defects. Additionally, the first patient presented with omphalocele. The neonate slightly deteriorated around 12 th hour of life, but underwent surgical repair of omphalocele followed by mechanical ventilation. Due to further deterioration, therapy included inhaled nitric oxide (iNO), inotropes and surfactant administration. The second patient was treated with prostaglandin E1 since birth due to suspicion of aortic coarctation (CoA). After ruling out CoA in the 3 rd day of life, infusion of prostaglandin E1 was discountinued and immediately patient's condition worsened. Subsequent treatment included re-administration of prostaglandin E1, iNO and mechanical ventilation. Both patients presented with transient improvement after application of iNO, but died despite maximized therapy. They were histopathologically diagnosed post-mortem with ACD. Array comparative genomic hybridization in patient one and patient two revealed copy-number variant (CNV) deletions, respectively, ~ 1.45 Mb in size involving FOXF1 and an ~ 0.7 Mb in size involving FOXF1 enhancer and leaving FOXF1 intact., Conclusions: Both patients presented with a distinct course of ACD, extra-pulmonary manifestations and response to medications. Surgery and ceasing of prostaglandin E1 infusion should be considered as potential causes of this variability. We further highlight the necessity of thorough genetic testing and histopathological examination and propose immunostaining for CD31 and CD34 to facilitate the diagnostic process for better management of infants with ACD.