Journal of cardiothoracic and vascular anesthesia
-
J. Cardiothorac. Vasc. Anesth. · Jun 2005
Randomized Controlled TrialA randomized controlled clinical trial of real-time needle-guided ultrasound for internal jugular venous cannulation in a large university anesthesia department.
The purpose of this study was to evaluate needle-guided ultrasound for internal jugular venous cannulation in a large university anesthesia department, to determine cumulative cannulation success by method, to determine first-pass cannulation success by method and operator, and to determine arterial puncture by method and operator. ⋯ Although the needle guide facilitates prompt cannulation with ultrasound in the novice operator, it offers no additional protection against arterial puncture. This may be because of a lack of control of needle depth rather than needle direction. A possible solution may be biplanar ultrasound for central venous cannulation.
-
J. Cardiothorac. Vasc. Anesth. · Jun 2005
Comparative StudyThe comparison and validity of troponin I assay systems in diagnosing myocardial ischemic injury after surgical coronary revascularization.
A prospective observational study was conducted to test the agreement between 2 commercially available automated cardiac troponin-I immunoassay systems (Opus Plus, Behring Diagnostics UK Ltd, Hounslow, UK; AxSYM, Abbott Laboratories, Abbott Park, IL) and to determine a normal reference range and threshold value indicative of perioperative myocardial infarction (PMI) after elective coronary artery bypass graft (CABG) surgery for the Opus Plus system. ⋯ These data highlight differences between commercially available troponin-I assay systems. The authors recommend that each institution establish a local reference range and threshold indicative of perioperative myocardial infarction for its specific patient population and assay system and provide sample methodology.
-
J. Cardiothorac. Vasc. Anesth. · Jun 2005
Clinical TrialEvaluation of plasma fentanyl concentrations in infants during cardiopulmonary bypass with low-volume circuits.
The purpose of the study was to measure changes in plasma fentanyl concentrations during infant cardiac surgery using a bypass circuit with low priming volume and to examine the relation of plasma fentanyl concentration and temperature to Bispectral Index (BIS) as an index of conscious level during infant cardiac surgery. ⋯ There was minimal variability in the plasma fentanyl concentration using a low-volume bypass circuit and constant infusion of fentanyl during surgery. There appears to be minimal utility for using BIS during infant cardiac surgery with no relationship between fentanyl concentration, temperature, and BIS established.
-
J. Cardiothorac. Vasc. Anesth. · Jun 2005
Randomized Controlled Trial Comparative StudyEffects of milrinone versus epinephrine on left ventricular relaxation after cardiopulmonary bypass following myocardial revascularization: assessment by color m-mode and tissue Doppler.
The purpose of this study was to evaluate the left ventricular lusitropic effects of epinephrine versus milrinone after cardiopulmonary bypass. ⋯ After cardiopulmonary bypass, left ventricular relaxation was significantly improved. Neither epinephrine nor milrinone exhibited favorable lusitropic effects after bypass.