Journal of cardiothoracic and vascular anesthesia
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J. Cardiothorac. Vasc. Anesth. · Apr 2005
National survey regarding the management of an intraoperatively diagnosed patent foramen ovale during coronary artery bypass graft surgery.
With the increased use of intraoperative transesophageal echocardiography (TEE), patent foramen ovale (PFO) has become a common finding during routine coronary artery bypass graft (CABG) surgery. This survey was designed to study potential differences in the management of intraoperatively diagnosed PFO. ⋯ In the United States, TEE is used extensively during CABG surgery. There is significant variability in how intraoperatively diagnosed PFO is managed during CABG surgery.
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J. Cardiothorac. Vasc. Anesth. · Apr 2005
The mechanisms of the direct vascular effects of fentanyl on isolated human saphenous veins in vitro.
The purpose of this study was to determine the mechanism of the direct effects of fentanyl on human veins in vitro. ⋯ The present results show that fentanyl causes vasodilatation via both endothelium- and opioid receptor-independent mechanisms in the human saphenous vein. The relaxant effects of fentanyl are probably via activation of K+ channel and Na+K+-adenosine trisphosphatase and inhibition of Ca++ channel.
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J. Cardiothorac. Vasc. Anesth. · Apr 2005
Normobaric hyperoxia reduces cardiac index in patients after coronary artery bypass surgery.
The purpose of this study was to assess the hemodynamic changes in response to normobaric hyperoxia in patients immediately after coronary artery bypass surgery. ⋯ Exposing patients after coronary artery surgery to hyperoxia induces significant hemodynamic changes.