Journal of cardiothoracic and vascular anesthesia
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J. Cardiothorac. Vasc. Anesth. · Feb 2003
Effects of positive-pressure ventilation, pericardial effusion, and cardiac tamponade on respiratory variation in transmitral flow velocities.
To determine the effects of positive-pressure ventilation and experimentally induced pericardial effusion and tamponade on transmitral flow velocities in dogs. ⋯ Intrathoracic pressure and lung volume changes caused by positive-pressure ventilation influence transmitral flow velocity patterns. Respiratory variation in transvalvular flow is pronounced during standard positive-pressure mechanical ventilation, decreases in the presence of pericardial effusion, and becomes almost nonexistent when cardiac tamponade is present. These findings show that the echocardiographic criteria used to diagnose cardiac tamponade based on mitral valve inflow patterns are different during positive-pressure ventilation from spontaneously breathing subjects.
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J. Cardiothorac. Vasc. Anesth. · Feb 2003
Early extubation after single-lung transplantation: analysis of the first 106 cases.
To determine if a modern anesthetic approach permits extubation immediately after surgery for single-lung transplantation. ⋯ This study has shown that it is possible to extubate patients in the operating room immediately after single-lung transplantation in the majority of cases.