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OBJECTIVES Near-infrared spectroscopy of the collateral network (cnNIRS) has recently been trialled to monitor real-time tissue oxygenation of the paraspinous vasculature as a surrogate for spinal cord tissue oxygenation. This large animal study was designed to investigate the correlation between cnNIRS and spinal cord oxygenation by comparing it to laser(More)
BACKGROUND The choice of the best conduit for root/ascending disease and its impact on longevity remain controversial in quinquagenarians. METHODS AND RESULTS A total of 205 patients (men=155) between 50 and 60 years (mean, 55.7 ± 2.9 years) received either a stentless porcine xenoroot (n=78) or a mechanically valved composite prosthesis (n=127) between(More)
OBJECTIVE Paraplegia remains the most devastating complication after thoracic and thoracoabdominal aortic aneurysm (TAA/A) repair. The collateral network (CN) concept of spinal cord perfusion suggests segmental artery (SA) occlusion to mobilize redundant intraspinal and paraspinal arterial sources and ultimately trigger arteriogenesis, leading to spinal(More)
OBJECTIVES The aim of this study is to investigate the clinical characteristics and postoperative outcome of patients with a bicuspid aortic valve (BAV) suffering acute dissection in comparison with their tricuspid peers. METHODS Between 1995 and 2011, 460 consecutive patients underwent emergency repair for acute type A aortic dissection. In 379 patients(More)
Evidence as to how ACE inhibitors attenuate ischemia-reperfusion injury (IR) after cardioplegic arrest remains scarce. Twenty-four rabbit hearts were perfused on a Langendorff apparatus. Control hearts (n = 6) were arrested with pure histidine-tryptophan-ketoglutarate (HTK)-Bretschneider. Treatment groups received added to the cardioplegic solution (n = 6)(More)
BACKGROUND Transcatheter mitral valve implantation (TMVI) is still in its infancy and is mainly limited to valve-in-valve or valve-in-ring implantations. We present the early experience with TMVI for severe calcified native MV stenosis. METHODS Between January 2014 and June 2015, 6 of 11 patients screened (mean age, 77.4 ± 6.3 years; 66% men) with severe(More)
OBJECTIVES This study was designed to assess the impact of crystalloid cardioplegia (CCP) and blood cardioplegia (BCP) on short- and long-term outcome after isolated aortic valve replacement (AVR). METHODS A total of 7263 patients undergoing AVR at our institution between November 1994 and June 2015 were identified. CCP (Custodiol ® ) was used in 83% ( n(More)
Background Triple valve surgery (TVS) is associated with an elevated risk for operative mortality and thus remains a surgical challenge. We report our experience and results of TVS procedures, especially with respect to identification of preoperative risk factors, to improve patient selection. Methods Between December 1994 and January 2013, 487 consecutive(More)
OBJECTIVES The treatment of patients with extensive thoracic aortic disease involving the arch and descending aorta is often performed using the frozen elephant trunk technique (FET). Spinal cord blood flow (SCBF) in cervical, thoracic and lumbar sections prior, during and after aortic arch surgery were compared in conventional elephant trunk (cET) and FET(More)
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