European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery
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Eur J Cardiothorac Surg · Jun 2011
Randomized Controlled Trial Comparative StudyHemodynamic performance of the Medtronic Mosaic and Perimount Magna aortic bioprostheses: five-year results of a prospectively randomized study.
Clinical outcomes of patients undergoing aortic valve replacement may be influenced by the presence of residual gradients and patient-prosthesis mismatch. The aim of this study was to compare hemodynamic performance and clinical outcomes at 5 years after prospectively randomized porcine versus bovine aortic valve replacement. We also aimed to determine the effects of valve hemodynamics on left ventricular (LV) mass regression. ⋯ At 5 years, the EPM valve was significantly superior to the MM prosthesis with regard to hemodynamic performance, incidence of patient-prosthesis mismatch and regression of LV mass index. The hemodynamic superiority of the EPM prostheses in comparison to MM-prostheses demonstrated at 1 year, increased significantly over time.
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Eur J Cardiothorac Surg · Jun 2011
Randomized Controlled Trial Comparative StudyShort-term effects of inhalative tiotropium/formoterol/budenoside versus tiotropium/formoterol in patients with newly diagnosed chronic obstructive pulmonary disease requiring surgery for lung cancer: a prospective randomized trial.
A new diagnosis of chronic obstructive pulmonary disease (COPD) is often made during the evaluation of patients requiring a surgical intervention for lung cancer. Based on initial impaired lung function, these untreated patients are often considered not fit for lung surgery. There is limited information on the short-term effectiveness of preoperative pharmacologic treatment strategies in patients with newly diagnosed COPD before lung surgery. ⋯ Both therapies resulted in an improvement of lung function. There is benefit from adding inhalative budenoside to tiotropium and formoterol in terms of an improvement in FEV1 and the severity of COPD. These beneficial results might lead to less pulmonary complications in the postoperative period.
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Eur J Cardiothorac Surg · Jun 2011
Randomized Controlled TrialRelevance of colloid oncotic pressure regulation during neonatal and infant cardiopulmonary bypass: a prospective randomized study.
In neonatal and infant cardiac surgery with cardiopulmonary bypass (CPB), hemodilution with reduction of plasma albumin concentration and low colloid oncotic pressure (COP) are the main factors associated with tissue edema and postoperative weight gain. The aim of our study was to evaluate the influence of two different COP regulatory strategies on post-bypass body weight gain, fluid balance, and clinical outcomes. ⋯ The COP regulatory strategy for neonatal and infant CPB, based upon the 5% concentration of albumin in the priming and a COP target of 18 mmHg during bypass, better preserves the plasma albumin concentration within the physiological range and stabilizes the colloid pressure than the standard strategy (0.5 gkg(-1) albumin in the priming and bypass COP target at 15 mmHg). Nevertheless, only the lower postoperative plasma lactate concentration and the shorter duration of mechanical ventilation in the high COP group indicated the potential clinical benefit of this new strategy.
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Eur J Cardiothorac Surg · Jun 2011
The Papworth Bleeding Risk Score: a stratification scheme for identifying cardiac surgery patients at risk of excessive early postoperative bleeding.
We have developed a risk stratification score to identify cardiac surgical patients at higher risk of severe postoperative bleeding to aid a decision of whether to use a specific intervention preoperatively. ⋯ We have developed a simple risk stratification score that can separate, preoperatively, patients into risk groups with markedly different rates of severe postoperative bleeding.
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Eur J Cardiothorac Surg · Jun 2011
Elective pectus bar removal following Nuss procedure for pectus excavatum: a single-institution experience.
Very few data are available on complications following elective bar removal after the Nuss procedure for pectus excavatum. The objective of this study was to investigate the data from 343 consecutive patients. ⋯ Bar removal following the Nuss procedure is a quick and safe operation with very few complications. Occurrence of complications is not dependent on the experience of the surgeon.