Scott D Niles

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Significant post-operative bleeding can be encountered in a small population of pediatric surgical patients requiring cardiopulmonary bypass (CPB). Recombinant factor VIIa (NovoSeven) has been advocated as a possible off-label rescue therapy for these individuals when conventional blood component therapy alone is inadequate. This study retrospectively(More)
UNLABELLED The Oximetrix III Opticath (Abbott Critical Care Systems) is used for continuous measurement of venous saturation in a variety of applications, including extracorporeal membrane oxygenation (ECMO), despite clinical reports that have presented data showing poor accuracy of these devices. The CDI Blood Parameter Monitoring System 500 (Terumo) is an(More)
OBJECTIVE Myocardial apoptosis is observed after various cardiac injuries and is also a normal part of fetal cardiac development and early postnatal maturation. Cardioplegic arrest and reperfusion result in ischemic injury and oxidative stress, known triggers of apoptosis. Because the neonatal heart is in a proapoptotic state, we hypothesize that apoptosis(More)
The selectins are a three-member family of leukocyte, platelet, and endothelial cell adhesion proteins that mediate leukocyte traffic into normal and inflamed tissues. P-selectin is expressed by endothelial cells and platelets, E-selectin by endothelial cells, and L-selectin by circulating leukocytes. To determine if selectin-mediated leukocyte adhesion(More)
OBJECTIVES Apoptosis is a mechanism for deletion of injured or obsolete cells that is distinct from necrosis and mediated by mitochondrial release of cytochrome c caspase activation. Because myocardial apoptosis is a part of normal fetal and postnatal maturation, we hypothesize that neonatal myocardium is more vulnerable to undergo myocardial apoptosis than(More)
Automated activated clotting time (ACT) is utilized as the primary means of assessing anticoagulation status for cardiopulmonary bypass (CPB) procedures. Influences on the clotting cascade during CPB such as hypothermia, hemodilution, and platelet dysfunction are known to affect ACT. The recently introduced Thrombolytic Assessment System (TAS) has been(More)
Monitoring the hematocrit is essential during cardiopulmonary bypass for efficacious administration of blood products. The purpose of this study was to evaluate five cardiopulmonary bypass in-line monitors designed to display continuous hematocrit or hemoglobin values. The devices were evaluated for accuracy using an in vitro circuit primed with human blood(More)
Many centers advocate the use of a standby wet-primed extracorporeal membrane oxygenation (ECMO) circuit for rapid deployment during cardiopulmonary resuscitation. However, concerns with regard to the potential health hazards associated with the release of the plasticizer di-2(ethylhexyl)phthalate (DEHP) from the polyvinyl chloride (PVC) tubing exist. The(More)
When choosing cannulae for cardiac surgery the two most important factors to be considered are the proposed procedure and the patient anatomy. These factors are especially crucial in paediatric patients with congenital heart disease. A 3-year-old, 14-kg male presented to the University of Iowa Hospitals and Clinics with dextro-transposition of the great(More)
CD18 designates a component of a leukocyte surface glycoprotein complex that mediates endothelial adherence. To determine whether interference with CD18-dependent leukocyte adhesion modifies reperfusion injury, we transplanted 16 canine left lungs after 4-hour preservation with modified Euro-Collins solution. Anti-canine CD18 monoclonal antibody (R15.7, 1(More)