The Annals of thoracic surgery
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Randomized Controlled Trial Comparative Study Clinical Trial
Normothermic versus hypothermic cardiopulmonary bypass: do changes in coagulation differ?
The differences between hypothermic and normothermic cardiopulmonary bypass (CPB) on platelet function and endothelial-related coagulation (eg, the thrombomodulin/protein C/protein S system) should be investigated. ⋯ Hypothermic CPB resulted in more pronounced alterations of platelet aggregation and endothelial-related coagulation than normothermic CPB. Plasma levels of soluble thrombomodulin were more increased in hypothermic than in normothermic CPB indicating more extensive endothelial damage or activation associated with hypothermic CPB.
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Operation for infective endocarditis with paravalvular abscess is reportedly associated with high mortality and morbidity rates. In an attempt to improve surgical outcome, an approach of radical resection of the abscess and inflamed tissues and reconstruction of the heart with either fresh or glutaraldehyde-fixed bovine pericardium was adopted by two surgeons at our institution. ⋯ This experience indicates that radical resection of the abscess and reconstruction of the heart with pericardium yield an excellent chance of eradicating the infection in patients with infective endocarditis and paravalvular abscess. The type of valve implanted may not be as important as radical resection of the abscess. These patients appear to have a greater than average risk of recurrent endocarditis.
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Case Reports
Long tracheobronchial and esophageal rupture after blunt chest trauma: injury by airway bursting.
Tracheobronchial rupture can be associated with blunt thoracic trauma. An important factor in the physiopathology of these lesions is reflex closure of the glottis, which can be related to closed chest trauma. ⋯ Both lesions were diagnosed by flexible bronchoscopy. The postoperative period was without serious complications.
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The treatment of infants with hypoplastic left heart syndrome has been challenging and controversial. ⋯ Both the Norwood procedure and heart transplantation have encouraging early to intermediate results in infants with hypoplastic left heart syndrome. Hypoplastic left heart syndrome should be managed selectively on the basis of cardiac morphology, donor availability, and family wishes. Development of a flexible program involving the use of both procedures may aid in the successful management of infants with hypoplastic left heart syndrome.
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The case of a 21-year-old woman without previous cervical pathology in whom irreversible tetraplegia developed after operation for tracheal stenosis is reported. After tracheal resection the neck was kept in extreme flexion and after extubation she was moved to a sitting position. The different causal agents that could produce the neurologic damage remain unclear, although we think that the combination of relative arterial hypotension secondary to the sitting position and disturbed autorregulation, caused by extreme neck flexion, could result in ischemic spinal cord injury.