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Diaphragmatic paralysis after pediatric cardiac surgery: A retrospective analysis of 34 cases

Thirty-four cases of diaphragmatic paralysis after pediatric cardiac surgery are reviewed. Differences between pediatric and adult pulmonary physiology account for the increased severity of respiratory distress seen in children with this condition. The efficacy of treatment with endotracheal intubation and continuous positive airway pressure (CPAP) is confirmed. No patient over 3 yr of age required intubation for longer than 2 wk. This finding is consistent with the development of sufficient chest wall stability to compensate for paralysis of the hemidiaphragm. Patients under 3 yr of age, without complicating heart failure, who still required intubation and CPAP 3–4 wk after injury to the phrenic nerve should consider operative plication.