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  • Title: [The treatment of severe pulmonary hypertension in newborn infants using extracorporeal membrane oxygenation or conventional measures. An interinstitutional comparison].
    Author: Möller JC, Jonas S, Sussmane JB, Tegtmeyer FK, Vardag AM, Richter A.
    Journal: Monatsschr Kinderheilkd; 1991 Oct; 139(10):681-6. PubMed ID: 1961206.
    Abstract:
    In a two years retrospective study we analyzed neonates from a US and a German neonatal center with pulmonary hypertension (persistent fetal circulation--PFC). The US patients were treated with Extracorporeal Membrane Oxygenation (ECMO) the german patients with conventional methods as hyperventilation, catecholamines, and vasodilators. Both groups fulfilled the classical ECMO entrance criteria: an alveolar-arterial oxygen difference greater than 610 mmHg and an oxygenation index (i.e. mean airway pressure x FiO2 x 100/paO2 of greater than 40 mmHg. We compared anamnestic and respiratory parameters with the t-test for independent groups or the chi-square test accordingly. With one patient in each group the mortality was not significantly different and the rate of meconium aspirations was the same. The APGAR score at 5 min was significantly lower in the US group, prenatal care was undertaken in significantly less US than german patients. Time intervals between delivery and important therapeutic interventions as intubation, hyperventilation, first catecholamines were not significantly different between both groups. Also worst paO2, pH, and paCO2 were not significantly different. Mechanical ventilation was more aggressive in the US group, i.e. higher intermittent-mandatory-ventilation-rate and peak inspiratory pressure. On the one hand our studies demonstrate that even patients fulfilling ECMO criteria still have a good chance with conventional treatment. On the other hand differences in APGAR scores and prenatal care might indicate that hypoxic-ischemic influences alter the US-group morbidity.
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