%0 Journal Article
%T Valor preditivo da raz£¿o entre espa£¿o morto e volume corrente fisiol¨®gicos no processo de desmame da ventila£¿£¿o mecanica em crian£¿as
%A Riou
%A Yvon
%A Chaari
%A Wissem
%A Leteurtre
%A St¨¦phane
%A Leclerc
%A Francis
%J Jornal de Pediatria
%D 2012
%I Sociedade Brasileira de Pediatria
%R 10.2223/JPED.2190
%X objective: to evaluate the physiological deadspace/tidal volume ratio (vd/vt) as a predictor of extubation failure in 42 ventilated children (median age: 4.75 years). method: extubation readiness was determined using the criteria proposed by the 6th international consensus conference on intensive care medicine adapted to children. results: non-invasive ventilation (niv) was used in four patients who developed respiratory failure after extubation; none was reintubated. children who needed niv to avoid reintubation had a significantly higher vd/vt ratio than those who were extubated without niv (p < 0.001). the cut-off value of vd/vt ratio was 0.55 and the area under the receiver operating characteristic curve was 0.86. conclusion: our findings confirm the good predictive value of weaning success/failure of the vd/vt ratio and suggest its role for predicting the need for niv after extubation.
%K weaning from mechanical ventilation
%K capnography
%K vd/vt ratio
%K children.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0021-75572012000300006&lng=en&nrm=iso&tlng=en