• Eiji Hashiba, Futoshi Kimura, Yasuyuki Suzuki, Takeshi Asano, Tomoko Ono, Hirobumi Okawa, Toshihito Tsubo, Hironori Ishihara, and Kazuyoshi Hirota.
• Department of Anesthesiology, Hirosaki University Postgraduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan. ehashiba@pc4.so-net.ne.jp
• J Anesth. 2011 Aug 1;25(4):580-4.

AbstractWe report a case in which a 2-year-old girl who underwent a right middle and lower lung lobectomy for congenital cystic adenomatoid malformation suffered massive bleeding and developed acute respiratory distress syndrome (ARDS) during the operation. She was ventilated with a high level of F(I)O(2) (0.75-1.0), PEEP (10-20 cmH(2)O), and PIP (33-55 cmH(2)O) to maintain SPO(2) (>90%). Following transfer to the ICU, continuous hemodialysis was introduced to reduce excessive blood volume. However, pulmonary oxygenation did not improve, and marked subcutaneous emphysema occurred on postoperative day 3 (POD 3). We introduced venovenous (V-V) extracorporeal membrane oxygenation (ECMO) to rest the lung, and V-V ECMO was changed to right and left atrial ECMO because of unsatisfactory oxygen support on POD 23. A CT scan showed almost the entire lung had collapsed, even though we had administered diuretics, steroids, nitric oxide, sivelestat, and surfactant for ARDS. We applied high-frequency oscillatory ventilation (HFOV) with a mean airway pressure of 20 cmH(2)O, frequency of 9.2 Hz, and amplitude of 38 cmH(2)O on POD 45. The collapsed lung was then gradually recruited, and pulmonary oxygenation improved (P/F ratio = 434). ECMO was successfully weaned on POD 88. The patient required a tracheostomy, but she was able to function without a ventilator on POD 142. Although HFOV has failed to show a mortality benefit in ARDS patients, the unique lung recruitment by HFOV can be a useful therapeutic option for severe ARDS patients in combination with sufficient lung rest produced by ECMO.

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