Objective: The aims of this study were to analyze parameters influencing early and late mortality after concomitant valve replacement and coronary artery bypass grafting surgery, using early and long-term information from an institutionally available data registry, and to discuss the results in relation to the current treatment strategies and perspectives.
Methods: The study population consisted of 294 patients after combined valve replacement with mechanical prosthesis and CABG surgery.
Results: There were 201 men (68.
Despite encouraging late outcomes, the use of bilateral internal thoracic artery (BITA) grafting for myocardial revascularization in diabetic patients remains controversial because of an increased risk of sternal wound complications. In the present study, early- and long-term outcomes of the use of left-sided BITA versus single internal thoracic artery (SITA) grafting in young (< 65 years of age) diabetic patients were reviewed retrospectively. A total of 250 propensity score pair-matched diabetic patients, operated on between February 2000 and December 2011, receiving either BITA ( = 125) or SITA ( = 125) grafting were analyzed retrospectively.
View Article and Find Full Text PDFObjectives: Despite the superior patency of internal thoracic artery (ITA) grafting compared with saphenous veins, frequency of bilateral ITA (BITA) grafting in Europe is still approximately 10%. The aim of the present study was to compare the early outcome of patients receiving either BITA or single ITA (SITA) grafting.
Methods: A total of 11,496 patients with isolated coronary artery bypass grafting (CABG), operated between January 1996 and December 2012, were analyzed retrospectively; 0.
Objectives: To discuss the dilemma of adequate decision making in patients with intravenous drug abuse and recurrent valve prosthesis infections or in patients with positive HIV or hepatitis C status. Ethical, social, and economic considerations, not only in terms of technical feasibility but also in terms of unpromising results and aspects of resources, are discussed. Thoughts are presented about the legitimation of cardiac surgery centers refusing to perform surgery in high-risk patients with HIV or hepatitis C infections.
View Article and Find Full Text PDFObjectives: Physical exercise accompanied by arterial hypertension is known to trigger acute aortic dissections. As a booster effect, mental stress leads to aggravation of hypertensive crisis. The aim of the study was to evaluate whether stress factors during sexual intercourse play any role as a catalyst in patients with acute type A aortic dissections.
View Article and Find Full Text PDFIntroduction: In this study we evaluated factors that affect the early and long-term postoperative outcomes of patients with infective endocarditis.
Methods: We retrospectively reviewed 94 patients (68 male, 26 female, mean age 58.3 ± 13.
Introduction: Cardiac surgeons stress may impair their quality of life and professional practice.
Objective: To assess perceived chronic stress and coping strategies among cardiac surgeons.
Methods: Twenty-two cardiac surgeons answered two self-assessment questionnaires, the Trier Inventory for Chronic Stress and the German SGV for coping strategies.
Background: Applying the gender lens to risk factors and outcome after adult cardiac surgery is of major clinical interest, as the inclusion of sex and gender in research design and analysis may guarantee more comprehensive cardiovascular science and may consecutively result in a more effective surgical treatment as well as cost savings in cardiac surgery.
Methods: We have reviewed classical cardiovascular risk factors (diabetes, arterial hypertension, hyperlipidemia, smoking) according to a gender-based approach. Furthermore, we have examined comorbidities such as depression, renal insufficiency, and hormonal influences in regard to gender.
Objective: The performance comparison of the recently introduced European System for Cardiac Operative Risk Evaluation II in predicting operative as well as mid-term mortality, with its previous version in patients after combined aortic valve replacement and coronary artery bypass grafting surgery.
Methods: This retrospective analysis included 216 patients operated on at one institution from 01/1999 to 12/2005. Accuracy and calibration of EuroSCORE I and II were assessed by plotting the areas under the receiver operator curves and comparing observed and predicted mortalities.
Thorac Cardiovasc Surg
February 2014
Background: The Mosaic bioprosthesis (Medtronic Inc., Minneapolis, Minnesota, United States), a stented porcine aortic valve, combines glutaraldehyde fixation with zero-pressure, root-pressure techniques and antimineralization treatment with amino-oleic acid for improved hemodynamics and tissue durability. The first device has been implanted worldwide at the authors' institution in September 1993.
View Article and Find Full Text PDFBackground: This study evaluates the impact of gender in dialysis-dependent patients undergoing cardiac surgery.
Methods: We retrospectively identified 204 dialysis-dependent patients (68.6% male, aged 66.
Thorac Cardiovasc Surg
December 2012
Background: The occurrence of severe carotid artery disease in more than 12% of patients requiring coronary artery bypass grafting (CABG) results in a discrepancy concerning best treatment for both diseases. We reviewed the early outcome of patients with CABG and/or valve replacement (VR) and simultaneous carotid endarterectomy (CEA).
Methods: We retrospectively evaluated 386 patients after simultaneous operation between 7/1994 and 9/2010.
Objectives: Patients with liver cirrhosis are considered as high-risk population for cardiac surgery. The aim of this study was to review mortality and mid-term outcome of patients with liver cirrhosis requiring coronary artery bypass graft (CABG), valve replacement, or combined procedures.
Methods: Between July 1997 and December 2006, 47 patients (mean age 65.
Objectives: The purpose of this randomized study was to compare sirolimus-eluting stenting with coronary artery bypass grafting (CABG) for patients with unprotected left main (ULM) coronary artery disease.
Background: CABG is considered the standard of care for treatment of ULM. Improvements in percutaneous coronary intervention (PCI) with use of drug-eluting stents might lead to similar results.
The aim of the present study was to develop methods for the rapid assessment of intimal quality of coronary bypass segments of venous origin, and to prevent endothelial damage by improved intraoperative handling of graft segments. Particular attention was paid to the influence of the composition of the preservation solution and the intravasal filling pressure on the degree of endothelialization. Intrava-sal exposure to Alcian blue at pH<3 resulted in highly specific staining of intimal regions with functionally or structurally damaged endothelium.
View Article and Find Full Text PDFAm J Physiol Heart Circ Physiol
March 2010
The frequently observed de-endothelialization of venous coronary bypass grafts prepared using standard methods exposes subendothelial prothrombotic cells to blood components, thus endangering patients by inducing acute thromboembolic infarction or long-term proliferative stenosis. Our aim was to gain deeper histological and physiological insight into these relations. An intricate network of subendothelial cells, characterized by histological features specific for true pericytes, was detected even in healthy vessels and forms, coupled to the luminal endothelium, a second leaflet of the macrovascular intima.
View Article and Find Full Text PDFThe objective of this study was to gain deeper insight into the early reasons for saphenous vein graft disease and to find a practical approach to obviate it. Intraoperative storage of freshly explanted venous grafts (45 min, 20 degrees C; n=25 in each case) in saline, saline + 5% albumin, or HTK-solution and also in heparinized autologous blood was poorly tolerated by the endothelium. Large endothelial areas (mostly >75% of total surface) were detached already during brief non-pulsatile flushing just before the transplantation.
View Article and Find Full Text PDFBackground: One factor for the development of sternal wound infection (SWI) is bony instability after sternotomy. This study compares two surgical techniques with respect to the occurrence of SWI in patients with an increased risk.
Methods: In this multicenter study, 815 consecutive patients with an increased risk for SWI were prospectively randomly assigned to a conventional osteosynthesis (transsternal or peristernal wiring; n = 440) or to an osteosynthesis with additional lateral reinforcement (Robicsek; n = 375).