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1.
J Pediatr ; 106(6): 957-62, 1985 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-3889258

RESUMO

To study the effects of furosemide therapy in infants with chronic lung disease (CLD), a double-blind controlled trial was designed. Seventeen infants with evidence of CLD (oxygen requirements greater than 30% at greater than 3 weeks of age and chest radiographic findings consistent with CLD) were studied. Pulmonary function was measured immediately before, and after 48 hours and 7 days of treatment with furosemide (1 mg/kg/12 hr intravenously or 2 mg/kg/12 hr orally) or placebo. Clinical status improved in six of seven infants who received furosemide and in two of 10 infants who received placebo (P less than 0.002). In the furosemide group, ventilator and oxygen requirements decreased (P less than 0.003); minute ventilation, alveolar ventilation, and dynamic compliance increased; and venous admixture decreased (P less than 0.05). There were no significant changes in the placebo group. Our findings suggest that furosemide significantly improves lung function during therapy in infants with CLD and allows earlier weaning from ventilatory support and supplemental oxygen.


Assuntos
Furosemida/uso terapêutico , Pneumopatias/tratamento farmacológico , Doença Crônica , Ensaios Clínicos como Assunto , Método Duplo-Cego , Seguimentos , Humanos , Recém-Nascido , Pneumopatias/fisiopatologia , Distribuição Aleatória , Testes de Função Respiratória , Fatores de Tempo , Relação Ventilação-Perfusão
2.
J Pediatr ; 106(2): 212-7, 1985 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-3918156

RESUMO

To learn whether the ventilatory responses to hypoxia (17% O2) and hypercapnea (4% CO2) differ in the subsequent siblings of sudden infant death victims (SIDS), we studied seven normal control infants, nine infants who had had a prolonged apneic spell (apneic infants), and 10 subsequent siblings of SIDS (mean ages 10.4 weeks, 15 weeks, and 10 weeks, respectively). With inhalation of 17% O2, one of seven controls, two of nine apneic infants, and seven of 10 siblings of SIDS breathed periodically (controls vs siblings, P less than 0.04). Heart rate and end-tidal PCO2 did not change, but respiratory rate decreased in the siblings (45 to 31 breaths per minute, P less than 0.001). Arousal occurred during 25% of the hypoxic challenges in the controls and apneic infants but was not seen in the siblings of SIDS (control vs siblings P less than 0.08, apneic vs siblings P less than 0.05). With inhalation of 4% CO2 there was a similar increase in estimated ventilation among the three groups. Arousal occurred 33% of the time in all three groups. Our findings show that, after 5 weeks of age, siblings of SIDS have a normal response to hypercapnea but respond to mild hypoxia with periodic breathing.


Assuntos
Apneia/genética , Respiração Artificial , Morte Súbita do Lactente/fisiopatologia , Apneia/fisiopatologia , Apneia/terapia , Dióxido de Carbono/fisiologia , Feminino , Frequência Cardíaca , Humanos , Lactente , Masculino , Oxigênio/fisiologia , Oxigenoterapia , Pressão Parcial , Respiração , Respiração Artificial/métodos , Volume de Ventilação Pulmonar
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