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H J Phillips

Publications and source records attributed to H J Phillips.

11 recordsLinked to original sources

Contralateral pneumothoraces in the newborn: incidence and predisposing factors.

A prospective study was performed to ascertain the incidence of, and risk factors for, the development of a contralateral pneumothorax in 32 neonates with respiratory distress, without evidence of pulmonary hypoplasia, who had an initial unilateral air leak requiring pleural drainage. The mean postnatal age of occurrence of the first pneumothorax was 31.04 hours (range 0.1 to 92 hours); a subsequent contralateral pneumothorax developed in 14 infants (44%) at a mean postnatal age of 61.5 hours (range 8 to 106 hours). Thirteen of the 14 infants with a subsequent contralateral pneumothorax had pulmonary interstitial emphysema visible on the chest radiograph taken immediately after drainage of the first pneumothorax, compared with eight of the 18 infants without a contralateral pneumothorax (P less than .005). Other factors significantly associated with a contralateral pneumothorax were alveolar-arterial oxygen gradient (P less than .01) and FiO2 (P less than .005), both measured one hour after the pneumothorax, and gestational age (P less than .05). Multivariate discriminant function analysis did not usefully add to the predictive power of pulmonary interstitial emphysema alone. Infants with pulmonary interstitial emphysema at the time of an initial unilateral pneumothorax are at significant risk for the development of a contralateral pneumothorax.

Bronchopulmonary Dysplasia↗

Use of US.

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Bursitis↗

Intrauterine membranes: sonographic findings and clinical significance.

We have identified six cases of chorioamniotic separation, three diagnosed in the third trimester and three cases seen in early pregnancy, at or prior to 16 wk' gestation. The sonographic findings consist of a fine mobile echodense line separated from the chorion and uterine wall by a lucent space. The membrane may completely surround the fetus and may extend over the fetal surface of the placenta, in which case the chorion may be identified as a separate echo. Two patients with chorioamniotic separation in the third trimester had polyhydramnios. The infants had no manifestations of amniotic band syndrome. The membranes seen in four other conditions are described and compared with chorioamniotic separation.

Amnion↗

Postextubation atelectasis: a retrospective review and a prospective controlled study.

To determine the role of chest physiotherapy in the prevention of postextubation atelectasis in neonates intubated for greater than 24 hours, a retrospective survey compared the incidence of this complication in a newborn intensive care unit prior to and following the institution of a routine of chest physiotherapy. Eight of 23 infants extubated developed atelectasis in the "pre-physio" period, whereas only one collapse occurred in 20 infants treated with a routine of physiotherapy at extubation (P less than 0.025). Subsequently a prospective controlled trial compared the use of a routine of physiotherapy at extubation with no physiotherapy. Eight of 21 infants not receiving physiotherapy developed postextubation atelectasis and none of 21 infants receiving physiotherapy developed atelectasis (P less than 0.01). Seventy-six percent of the collapses involved the right upper lobe. A vigorous program of chest physiotherapy, including postural drainage emphasizing the positions of the right upper lobe and chest vibrations, will significantly reduce the incidence of postextubation atelectasis.

Drainage↗