Journal of cardiothoracic and vascular anesthesia
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J. Cardiothorac. Vasc. Anesth. · Apr 2011
ReviewUpdate in hematology: heparin-induced thrombocytopenia and bivalirudin.
Heparin-induced thrombocytopenia (HIT) is important because it is common, and it significantly increases mortality after cardiac surgery. Although thrombocytopenia after cardiac surgery is common, it predicts serious adverse outcome when it is severe. Despite the high prevalence of heparin/platelet factor 4 antibodies in cardiac surgical patients, they typically do not indicate a higher perioperative risk. ⋯ Patients with a remote history of HIT can have cardiac surgery safely with unfractionated heparin. Patients with clinically active HIT who require cardiac surgery before the resolution of the HIT preferably should be anticoagulated with bivalirudin, dosed according to body weight and the goal-activated coagulation time. Given that bivalirudin is an established alternative to heparin as a thrombin inhibitor for cardiac surgery, it is likely that future trials will investigate which anticoagulant confers better outcomes after cardiac surgery, as is the case in percutaneous coronary intervention.
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J. Cardiothorac. Vasc. Anesth. · Apr 2011
Comparative StudyMetabolic syndrome exacerbates short-term postoperative cognitive dysfunction in patients undergoing cardiac surgery: results of a pilot study.
The authors tested the hypothesis that patients with metabolic syndrome are more likely to develop short-term cognitive dysfunction after cardiac surgery with cardiopulmonary bypass. ⋯ The results indicate that short-term cognitive functions were more profoundly impaired in patients with metabolic syndrome undergoing cardiac surgery with cardiopulmonary bypass compared with their healthier counterparts.
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J. Cardiothorac. Vasc. Anesth. · Apr 2011
Comparative StudyClostridium difficile-associated disease acquired in the cardiothoracic intensive care unit.
To determine the prevalence, severity, and outcome associated with Clostridium difficile-associated disease (CDAD) acquired while in the cardiothoracic intensive care unit (CTICU). ⋯ C difficile-associated disease rarely is acquired in the CTICU. Approximately one third of patients may experience disease progression, and just over a quarter may die within 30 days of diagnosis. The implementation of recommended severity definitions and treatment algorithms may reduce complication rates and merits prospective evaluation.
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J. Cardiothorac. Vasc. Anesth. · Apr 2011
Comparative StudyComparative feasibility of myocardial velocity and strain measurements using 2 different methods with transesophageal echocardiography during cardiac surgery.
To assess the feasibility and correlation between tissue Doppler and speckle tracking imaging when measuring myocardial velocity, strain, and strain rate with transesophageal echocardiography. ⋯ The correlation between tissue Doppler and speckle tracking with transesophageal echocardiography appears valid when predominantly confined to segments moving in a radial direction adjacent to the ultrasound transducer. Tissue Doppler echocardiography of radial cardiac motion appears to be the most feasible technique of measuring myocardial velocity, strain, and strain rate during cardiac surgery.