The Annals of thoracic surgery
-
Comparative Study
Left ventricle is better suited as pulmonary ventricle in simple transposition with severe pulmonary hypertension.
The conventional treatment of transposition of great arteries with prepared left ventricle is an arterial switch operation. This, in our experience, does not hold for patients with transposition of great arteries with intact ventricular septum where the left ventricle continues to be prepared secondary to severe pulmonary arterial hypertension without an immediately reversible cause. ⋯ Atrial level repairs seem to perform better than arterial level repairs in children having TGA with persistent pulmonary artery hypertension without a correctable cause. Better tolerance of pulmonary arterial hypertension in this group is probably consequent to the superior ability of the left ventricle to tolerate a pressure load in the early postoperative period.
-
Comparative Study
Severe ischemic early liver injury after cardiac surgery.
The epidemiology, pathogenesis and prognosis of severe ischemic early liver injury (SIELI) after cardiac surgery are poorly understood. Accordingly, we studied patients whose alanine transaminase (ALT) concentration acutely increased above 500 IU/l in the immediate postoperative period and compared these patients to two control groups matched for preoperative and immediate postoperative characteristics. ⋯ SIELI after cardiac surgery carries a high mortality and is strongly associated with a low cardiac output and increased filling pressures, suggesting that liver ischemia induced by a combination of decreased perfusion and congestion is fundamental to its pathogenesis. A history of cardiac failure, diabetes, hypertension, and female gender may represent risk factors for its development and severity in the setting of a postoperative low cardiac output state.
-
The appropriate surgical strategy for patients with an arch tear in acute type A dissection remains controversial. We retrospectively compared surgical results after hemiarch as compared with transverse aortic arch replacement in patients with an arch tear in acute type A dissection. ⋯ Hemiarch replacement for acute type A dissection demonstrated favorable early and late outcome. The extent of graft replacement influenced surgical mortality and morbidity. Whenever the intimal tear is located in the lesser curvature of the transverse arch, hemiarch replacement is recommended to improve overall operative mortality and morbidity.
-
Randomized Controlled Trial Clinical Trial
Development of a CD-ROM Internet Hybrid: a new thoracic surgery curriculum.
The TSDA Prerequisite Curriculum Committee has successfully developed the content for a didactic curriculum to be mastered by the residents before their matriculation in a thoracic surgical residency program. In addition the committee assembled an innovative electronic format consisting of a CD-ROM Internet Hybrid to teach this curricular material. By use of a serialized CD-ROM Internet Hybrid it is possible to store relatively dense high bandwidth portions of the curriculum including video and audio materials on the CD-ROM and yet allow constant updating and interaction of the other portions of the curriculum. ⋯ It is our anticipation that successful completion of this project will not only allow for the use of an innovative highly technical means of education for our residents but may in turn become broadly applicable to many other types of educational projects within thoracic surgery education. This may also be applicable to other types of educational projects in the postgraduate education industry and other venues as well. The conduct of a scientific study monitoring the impact of this curriculum project as well as the acceptance of the project by the resident is also relatively unique and will be scrutinized by numerous professional medical and educational groups.
-
Comparative Study
Routine immediate extubation for off-pump coronary artery bypass grafting without thoracic epidural analgesia.
The expansion of coronary surgery on the beating heart without cardiopulmonary bypass has led to increasing interest in ultra-fast track anesthesia, allowing extubation of the patient in the operating theater. The techniques described to date combined general anesthesia with thoracic epidural analgesia. We report the routine application of a technique that allows immediate extubation in the majority of patients undergoing off-pump coronary artery bypass grafting without thoracic epidural analgesia. ⋯ Immediate extubation is possible in most patients after off-pump coronary artery bypass grafting even without thoracic epidural analgesia. We believe this type of less invasive cardiac anesthesia is safe and promising.