European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery
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Eur J Cardiothorac Surg · Jan 1997
Comparative StudyComparison of myocardial revascularization without cardiopulmonary bypass to standard open heart technique in patients with left ventricular dysfunction.
To compare myocardial revascularization without cardiopulmonary bypass to standard open heart technique in patients with left ventricular (LV) dysfunction. ⋯ These results show a trend for lower operative risk resulting in better overall survival in selected patients with LV dysfunction undergoing coronary artery bypass surgery without cardiopulmonary bypass.
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Eur J Cardiothorac Surg · Jan 1997
Comparative StudyGastroepiploic artery coronary bypass graft: non-invasive patency evaluation using color and duplex Doppler ultrasonography.
Color and duplex Doppler ultrasound and digital subtraction angiography were compared for the evaluation of graft patency of the gastroepiploic artery (GEA). ⋯ We propose ultrasound as a primary screening tool for evaluating graft patency. While color Doppler is a suitable technique for graft visualization, spectral analysis with the calculation of a cRI is required for functional evaluation.
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Eur J Cardiothorac Surg · Jan 1997
Reoperative coronary artery bypass procedures: risk factors for early mortality and late survival.
The number of coronary artery disease reoperations is increasing. The aim of this paper is to identify risk factors and evaluate the results of REDO coronary artery bypass grafting (CABG). ⋯ Reoperative CABG is effective, but has an increased operative mortality and morbidity. The long-term results are encouraging. Unstable angina, poor preoperative left ventricular function, renal insufficiency, insulin dependant diabetes and an interval shorter than 1 year of the initial operation were independent riskfactors for mortality.
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Eur J Cardiothorac Surg · Jan 1996
Randomized Controlled Trial Comparative Study Clinical TrialA comparison of inhaled nitric oxide with intravenous vasodilators in the assessment of pulmonary haemodynamics prior to cardiac transplantation.
Elevated pulmonary vascular resistance and transpulmonary gradient are predictors of increased perioperative mortality in patients undergoing orthotopic heart transplantation. Sodium nitroprusside and prostacyclin PGI2 are routinely used to assess the reversibility of pulmonary vascular resistance and transpulmonary gradient in heart transplant candidates, but their use is limited by their systemic vasodilatory effect. The aim of this study was to evaluate the systemic and pulmonary haemodynamic effects of low concentration (10 and 20 parts per million) inhaled nitric oxide in patients with severe heart failure with elevated transpulmonary gradient and pulmonary vascular resistance undergoing assessment for cardiac transplantation, and to compare the haemodynamic effects of inhaled nitric oxide with those of sodium nitroprusside and prostacyclin PGI2. ⋯ Low-concentration inhaled nitric oxide is as effective as sodium nitroprusside and prostacyclin in reducing transpulmonary gradient and pulmonary vascular resistance, and is highly pulmonary vasoselective.
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Eur J Cardiothorac Surg · Jan 1996
Comparative StudyClinical experience with minimally invasive reoperative coronary bypass surgery.
To minimize the risk of standard and reoperative coronary artery bypass, we developed a minimally invasive approach. In this study we have evaluated the effectiveness of this technique. ⋯ In selected patients reoperative coronary artery bypass grafting can be performed with this minimally invasive approach with a low perioperative morbidity and mortality rate and satisfactory early graft patency rate with good symptomatic improvement.