Journal of cardiothoracic and vascular anesthesia
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J. Cardiothorac. Vasc. Anesth. · Jun 1998
Simultaneous transesophageal atrial pacing and transesophageal echocardiography in cardiac surgical patients.
To measure the effect of inserting a transesophageal echocardiography (TEE) probe on the pacing threshold of a previously inserted transesophageal pacing stethoscope, and to examine whether an indwelling pacing stethoscope influences the feasibility and image quality of a TEE examination. ⋯ Placement of a TEE probe results in a modest increase of the transesophageal pacing threshold. An indwelling pacing stethoscope frequently interferes with the ability to perform a full echocardiographic examination, and probe manipulation commonly causes loss of pacing.
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J. Cardiothorac. Vasc. Anesth. · Jun 1998
Comparative StudyShort atrioventricular delay dual-chamber pacing early after coronary artery bypass grafting in patients with poor left ventricular function.
To investigate the effect of short atrioventricular (AV) delay dual-chamber pacing on mean arterial pressure (MAP) and stroke volume index (SVI) in patients with poor left ventricular (LV) function after cardiac surgery. ⋯ Dual-chamber pacing with nonphysiologic short AV delay failed to improve acute hemodynamics in patients with poor LV function after CABG. Short AV delay VDD pacing was superior to DDD pacing in both normal and impaired LV function. The use of Doppler echocardiography enabled optimization of the AV delay on the basis of LV filling patterns.
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J. Cardiothorac. Vasc. Anesth. · Jun 1998
Comparative StudyIntraoperative transesophageal echocardiography during noncardiac surgery.
To investigate the use and impact of transesophageal echocardiography (TEE) during noncardiac surgery. ⋯ It appears that TEE in patients undergoing noncardiac surgery is efficacious in rapidly disclosing new findings and information during periods of hemodynamic instability. It may have a significant impact on intraoperative patient management and may be beneficial in patients older than 66 years of age.
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J. Cardiothorac. Vasc. Anesth. · Jun 1998
Comparative StudyCerebral complications after coronary artery bypass and heart valve surgery: risk factors and onset of symptoms.
Cerebral complications continue to be a major cause of morbidity after cardiac surgery. Earlier studies have mainly focused on intraoperative events, but symptoms may also occur later in the postoperative period. The purpose of this study was to determine the incidence and risk factors of focal neurologic complications and timing of cerebral symptoms. ⋯ Cerebral complications may be delayed after cardiac surgery, suggesting causes of cerebral damage other than intraoperative events. Valve-surgery patients had the lowest incidence and patients with combined procedures had the highest incidence of cerebral complications. Advanced age, diabetes mellitus, and preexisting cerebrovascular disease increased the risk.