Journal of cardiothoracic and vascular anesthesia
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J. Cardiothorac. Vasc. Anesth. · Oct 1996
Relationship of regional wall motion abnormalities detected by biplane transesophageal echocardiography and electrocardiographic changes in patients undergoing coronary artery bypass graft surgery.
It has been demonstrated that new regional wall motion abnormalities (RWMAs) are infrequently associated with electrocardiographic (ECG) ischemic changes during coronary artery bypass graft (CABG) surgery. The evaluation of apical or basal areas by biplane transesophageal echocardiography (TEE) may clarify the relationship between RWMA and ECG changes. ⋯ Biplane TEE provides additional information about spatial distribution of new RWMAs. This study was the first to demonstrate that a clear relationship between TEE and ECG ischemia exists. When these new RWMAs exhibited a large spatial distribution, the frequency of ECG ischemic changes increased.
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J. Cardiothorac. Vasc. Anesth. · Oct 1996
Effects of nitroglycerin infusion on segmental wall motion abnormalities after anesthetic induction.
To assess the effect of intravenous nitroglycerin (NTG) on segmental wall motion abnormalities (SWMAs) and global ventricular function after anesthetic induction in patients undergoing coronary artery bypass grafting (CABG). ⋯ Intravenous NTG improved postinduction SWMAs in 75% of patients with known coronary artery disease. TEE-guided NTG infusion after induction may provide an optimal baseline echocardiogram for monitoring intraoperative myocardial ischemia by improving the reversible portion of postinduction SWMAs.
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J. Cardiothorac. Vasc. Anesth. · Oct 1996
Early effects of coronary artery bypass surgery and cold cardioplegic ischemia on left ventricular diastolic function: evaluation by computer-assisted transesophageal echocardiography.
Although left ventricular (LV) systolic function undergoes a temporary decrease after cardiopulmonary bypass (CPB) in patients undergoing coronary artery bypass grafting (CABG), data on the effects of CABG and cardioplegic arrest on LV diastolic function are contradictory. The objective of the present study was to further evaluate the effects of CABG and CPB on LV diastolic function. ⋯ Both the active and passive components of LV diastolic function are well maintained shortly after CABG and cardioplegic arrest in patients with a good preoperative systolic LV function.
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J. Cardiothorac. Vasc. Anesth. · Oct 1996
Intraoperative transesophageal echocardiography during liver transplantation.
To investigate the safety, value, and impact of transesophageal echocardiography during liver transplantation. ⋯ It appears that transesophageal echocardiography can be performed safely in patients undergoing liver transplantation, is efficacious in rapidly disclosing new information and monitoring during periods of hemodynamic instability, and may have a significant impact on intraoperative patient management during liver transplantation.