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Preoperative Predictors of Prolonged Postoperative Mechanical Ventilation in Children Following Scoliosis Repair
Author(s) -
Yuan Nanci,
Skaggs David L.,
Dorey Fred,
Keens Thomas G.
Publication year - 2005
Publication title -
pediatric pulmonology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.866
H-Index - 106
eISSN - 1099-0496
pISSN - 8755-6863
DOI - 10.1002/ppul.20291
Subject(s) - medicine , scoliosis , anesthesia , neuromuscular disease , lung volumes , mechanical ventilation , pulmonary function testing , functional residual capacity , surgery , vital capacity , kyphoscoliosis , restrictive lung disease , lung , lung function , disease , diffusing capacity
Scoliosis is associated with progressive restrictive lung disease and an increased risk of pulmonary complications following surgical correction. Identification of higher risks for prolonged postoperative mechanical ventilation (MV) improves postoperative care. Our objective was to determine if preoperative pulmonary function tests (PFT) predict prolonged postoperative MV (defined as MV ≥3 days). We correlated preoperative PFT (forced expired volume in 1 sec, FEV 1 ; vital capacity, VC; inspiratory capacity, IC; maximal inspiratory pressure, MIP; total lung capacity, TLC; and residual volume, RV) and postoperative MV days in 125 patients who had scoliosis surgery (aged 13.7 ± 3.0 (SD) years) from January 1990–July 2001. We had 71 male and 54 female patients. Scoliosis types were 13 congenital, 27 idiopathic, 57 neuromuscular, 23 syndrome/tumor, and 5 kyphoscoliosis. Forty patients (32%) had postoperative MV ≥3 days. Independent factors likely requiring postoperative MV ≥3 days were neuromuscular scoliosis ( P < 0.001) and FEV 1 <40% predicted. Independent factors most likely were: neuromuscular scoliosis with preoperative FEV 1 <40% predicted ( P < 0.01). Independent factors most unlikely were: idiopathic scoliosis ( P < 0.002). VC <60% predicted, IC <30 ml/kg, TLC <60% predicted, and MIP <60 cm H 2 O correlated with postoperative MV ≥3 days ( P < 0.05). We found no association between RV and postoperative MV. FEV 1 <40% predicted, VC <60% predicted, IC <30 ml/kg, TLC <60% predicted, MIP <60 cm H 2 O, and neuromuscular disease each correlated with prolonged postoperative MV. Neuromuscular disease or a preoperative FEV 1 <40% predicted were more likely, and older children with neuromuscular disease and FEV 1 <40% predicted were most likely to require prolonged postoperative MV ( P < 0.01). Clearly FEV 1 , and possibly VC, IC, TLC, and MIP, may increase accuracy in predicting the need for prolonged postoperative MV. Pediatr Pulmonol. © 2005 Wiley‐Liss, Inc.