Hemodynamic, ventilatory and gasometric evaluation of an experimental bronchopleural fistula1
Oliveira, Douglas Guimarães deToneloto, Maria Gabriela CavicchiaMoreira, Marcos MelloBustorff-Silva, Joaquim MurraySouza, Gabriel Franco deMartins, Luiz ClaudioKosour, CarolinaDragosavac, DesankaFalcão, Antônio Luis Eiras
PURPOSE: To investigate the hemodynamic and ventilatory changes associated with the creation of an experimental bronchopleural fistula (BPF) treated by mechanical ventilation and thoracic drainage with or without a water seal.7 METHODS: Six large white pigs weighing 25 kg each which, after general anesthesia, underwent endotracheal intubation (6mm), and 7mechanically ventilation. Through a left thoracotomy, a resection of the lingula was performed in order to create a BPF with an output exceeding 50% of the inspired volume. The chest cavity was closed and drained into the water sealed system for initial observation of the high output BPF. RESULTS: Significant reduction in BPF output and PaCO2 was related after insertion of a water-sealed thoracic drain, p< 0.05. CONCLUSION: Insertion of a water-sealed thoracic drain resulted in reduction in bronchopleural fistula output and better CO2 clearance without any drop in cardiac output or significant changes in mean arterial pressure.(AU)
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