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Korean Journal of Anesthesiology 1988;21(2):377-383.
DOI: https://doi.org/10.4097/kjae.1988.21.2.377   
Application of Selective Nondependent Lung High Frequency Jet Ventilation during Surgery for a Descending Thoracic Aorta Aneurysm .
Wyun Kon Park, Suh Ouk Bang, Soon Ho Nam, Hung Kun Oh
Department of Anesthesiology, Yonsei University College of Medicine, Seoul, Korea.
During surgical repair of a descending thoracic aorta aneurysm, one-lung ventilation improves visualization of the surgical field, facilitates surgical resection, and reduces lung trauma. Trauma to the left lung during surgical repair of the descending thoracic aorta is very common, and intrapulmonary hemorrhage can be occurred if both lungs are ventilated. A double lumen tube can isolate and protect the lungs. During one lung ventilation in the lateral decubitus position, hypoxemia can frequently occur and hypoxic damage can result. Selective nondependent lung high frequency jet ventilation was administered using a MERA JET VENTILATOR with FiO2 1.0, driving gas pressure 1kg/cm2, respiration rate 120/min., and an I:E ratio of 1:2. Oxygenation (PaO2 readings were all above 200 torr) was well maintained and PaCO2 values were all within normal limits throughout the operation. Under the left atrial femoral artery bypass with the cardiopulmonary bypass machine without oxygenator, an internal bypass graft with Woven dacron was performed. The patient tolerated the surgery well, and the postoperative course was uneventful except for left vocal cord paralysis.
Key Words: Thoracic aorta aneurysm; One lung ventilation; High frequency jet ventilation


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