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1.
Am J Perinatol ; 2022 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-35977710

RESUMO

OBJECTIVE: This study aimed to evaluate whether the initial pressure level on high continuous positive airway pressure (CPAP; ≥9 cm H2O), in relation to preextubation mean airway pressure (Paw), influences short-term clinical outcomes in preterm neonates. STUDY DESIGN: In this retrospective cohort study, preterm neonates <29 weeks' gestational age (GA) extubated from mean Paw ≥9 cm H2O and to high CPAP (≥9 cm H2O) were classified into "higher level CPAP" (2-3 cm H2O higher than preextubation Paw) and "equivalent CPAP" (-1 to +1 cm H2O in relation to preextubation Paw). Only the first eligible extubation per infant was analyzed. The primary outcome was failure within ≤7 days of extubation, defined as any one or more of (1) need for reintubation, (2) escalation to an alternate noninvasive respiratory support mode, or (3) use of CPAP >preextubation Paw + 3 cm H2O. Secondary outcomes included individual components of the primary outcome, along with other clinical and safety outcomes. RESULTS: Over a 10-year period (Jan 2011-Dec 2020), 175 infants were extubated from mean Paw >9 cm H2O to high CPAP pressures. Twenty-seven patients (median GA = 24.7, [interquartile range (IQR)]: (24.0-26.4) weeks and chronological age = 31, IQR: [21-40] days) were classified into the "higher level CPAP" group while 148 infants (median GA = 25.4, IQR: [24.6-26.6] weeks and chronological age = 26, IQR: [10-39] days) comprised the "equivalent CPAP" group. There was no difference in the primary outcome (44 vs. 51%; p = 0.51), including postadjustment for confounders (adjusted OR [aOR] = 0.47 [95% confidence interval (CI): 0.17-1.29; p = 0.14]). However, reintubation risk within 7 days was lower with higher level CPAP (7 vs. 37%; p < 0.01), including postadjustment (aOR = 0.07; 95% CI: 0.02-0.35; p < 0.01). CONCLUSION: In this cohort, use of initial distending CPAP pressures 2 to 3 cm H2O higher than preextubation Paw did not alter the primary outcome of failure but did lower the risk of reintubation. The latter is an interesting hypothesis-generating finding that requires further confirmation. KEY POINTS: · Use of high CPAP pressures (≥9 cm H2O) is gradually increasing in the care of preterm neonates.. · This study compares higher level versus equivalent CPAP in relation to preextubation Paw.. · The findings demonstrate no difference in failure as defined with use of higher level CPAP pressures..

3.
Oman Med J ; 36(2): e243, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-33854794

RESUMO

Cystic fibrosis (CF) is a genetic disease caused by a mutation in the cystic fibrosis transmembrane conductance regulator (CFTR) gene that affects multisystems in the body, particularly the lungs and digestive system. We report a case of an Omani newborn who presented with meconium ileus and high suspicion of CF. Thus, full CFTR gene sequencing was performed, which revealed a homozygous unreported C.4242+1G>C novel gene mutation. Both parents were found to be heterozygous for this mutation. This case sheds light on the importance of the extensive genetic testing of typical CF cases in the absence of family history or during neonatal presentations, especially when the sweat test cannot be performed and the diagnosis can be challenging.

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