Publications by authors named "Thilo Noack"

Background: Comparative studies of outcomes between different biological mitral valve prostheses are scarce. This study compares the late clinical results of valve replacement with the Epic and Mosaic bioprostheses.

Methods: Patients undergoing isolated elective mitral valve replacement (MVR) between 2005 and 2019 were eligible for inclusion.

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Objective: This study compares early and long-term outcomes following mitral valve (MV) repair and replacement in patients with mitral regurgitation (MR) and reduced left ventricular ejection fraction (LVEF).

Methods: Patients with primary or secondary MR and LVEF <50% who underwent MV replacement or repair (with/without atrial septal defect closure and/or atrial fibrillation ablation) between 2005 and 2017 at our center were retrospectively analyzed using unadjusted and propensity score matching techniques (42 pairs).

Results: A total of 356 patients with either primary (n = 162 [45.

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Background: Saphenous venous grafts remain the most widely used conduits in coronary artery bypass graft surgery (CABG). Data comparing outcomes of single saphenous venous grafting (SinCABG) versus sequential venous grafting (SeqCABG), however, are limited.

Methods: Between 2002 and 2012, 2375 patients with 3-vessel coronary artery disease underwent isolated elective CABG at the Leipzig Heart Center with a left internal mammary artery graft to left anterior descending artery and ≥2 distal saphenous vein graft anastomoses.

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Article Synopsis
  • The study aimed to compare outcomes between initial surgical aortic valve replacement (SAVR) and redo surgical aortic valve replacement (rSAVR) due to structural valve deterioration (SVD).
  • Researchers analyzed clinical data from 2,620 patients at Leipzig Heart Center between 2011 and 2022, focusing on all-cause mortality, stroke, and other complications during hospitalization.
  • Results showed that while redo surgery appeared riskier at first glance, the difference in outcomes diminished when accounting for patients' existing health conditions, indicating that elective rSAVR can have outcomes comparable to primary SAVR.
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CT-derived fractional flow reserve (CT-FFR) can improve the specificity of coronary CT-angiography (cCTA) for ruling out relevant coronary artery disease (CAD) prior to transcatheter aortic valve replacement (TAVR). However, little is known about the reproducibility of CT-FFR and the influence of diffuse coronary artery calcifications or segment location. The objective was to assess the reliability of machine-learning (ML)-based CT-FFR prior to TAVR in patients without obstructive CAD and to assess the influence of image quality, coronary artery calcium score (CAC), and the location of measurement within the coronary tree.

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  • A study in Germany compared two treatments for heart failure patients with secondary mitral regurgitation: transcatheter edge-to-edge repair and surgical mitral-valve repair or replacement.
  • The trial involved 210 patients and assessed outcomes like death, hospitalizations, and major adverse events, finding that transcatheter repair had similar efficacy but significantly fewer safety issues than surgery.
  • Results showed that transcatheter edge-to-edge repair was noninferior to the surgical approach, indicating it might be a safer alternative for this patient group.
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Objectives: In this study, we evaluated if modified Del Nido cardioplegia delivers comparable cardiac protection in comparison to Custodiol® in patients undergoing isolated minimally invasive mitral valve repair.

Methods: From January 2018 to October 2021, all patients undergoing non-emergent isolated minimally invasive mitral valve repair were included in this study. The cardioplegia was chosen at the surgeons' discretion.

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Background: Percutaneous suture-based arterial access site closure (ProGlide) is commonly applied in patients undergoing transfemoral transcatheter aortic valve implantation (TAVI). However, the failure of a suture-based vascular closure device (VCD) may require additional treatment.

Aims: We aimed to evaluate the efficacy and safety of bailout access site closure using a large-bore plug-based device (MANTA) in patients with failed suture-based closure during transfemoral TAVI.

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Objectives: The frequency of minimally invasive mitral valve surgery (MVS) has steadily increased over the last decades and therefore surgeons are now encountering an increasing number of patients requiring mitral valve (MV) reoperations post-minimally invasive MVS. The aim of this study was to analyse the early postoperative outcomes and the long-term survival in patients who undergo reoperative MVS following previous minimally invasive surgery.

Methods: Patients who underwent redo MVS following prior minimally invasive MVS between January 2002 and December 2021 were included in our analysis.

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Background: Red blood cell distribution width (RDW) is calculated in every blood count test and reflects variability in erythrocyte size. High levels mirror dysregulated erythrocyte homeostasis and have been associated with clonal hematopoiesis as well as higher mortality in several conditions.We aimed to determine the impact of preprocedural RDW levels on functional outcomes after transcatheter aortic valve implantation (TAVI).

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Objective: To compare machine learning (ML)-based CT-derived fractional flow reserve (CT-FFR) in patients before transcatheter aortic valve replacement (TAVR) by observers with differing training and to assess influencing factors.

Background: Coronary computed tomography angiography (cCTA) can effectively exclude CAD, e.g.

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Background Short-term effects on mitral valve (MV) anatomy after transcatheter edge-to-edge repair using the PASCAL system remain unknown. Precise quantification might allow for an advanced analysis of predictors for mean transmitral gradients. Methods and Results Consecutive patients undergoing transcatheter edge-to-edge repair for secondary mitral regurgitation using PASCAL or MitraClip systems were included.

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Article Synopsis
  • Tricuspid transcatheter edge-to-edge repair (TEER) can help patients with tricuspid regurgitation (TR), but many still face risks post-procedure, especially related to stressed blood volume (eSBV).
  • A study of 279 patients found that eSBV is linked to factors like obesity and organ dysfunction, critically impacting heart failure and blood flow dynamics.
  • Higher eSBV was associated with worse outcomes, such as persistent venous congestion after TEER and increased rates of death and hospitalizations for heart failure, suggesting the need for better patient screening for additional treatments.
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Article Synopsis
  • * A study analyzed 22 patients who underwent this procedure, revealing a 30-day mortality of 13.6% and estimated 1- and 3-year survival rates of 77.5% and 66.4%, respectively.
  • * Results indicate that the Hemi-Commando procedure can provide acceptable survival rates and low chances of needing further surgeries, making it a viable choice for patients with complex IE and significant complications.
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Article Synopsis
  • Over 150,000 transcatheter edge-to-edge repair (TEER) procedures have been conducted globally, but the effect of mitral regurgitation (MR) causes on subsequent mitral valve (MV) surgery outcomes is not well understood.
  • A study analyzed data from the CUTTING-EDGE registry, focusing on patients who underwent MV surgery post-TEER, comparing outcomes based on whether their MR was classified as primary (PMR) or secondary (SMR).
  • Results indicated that SMR patients faced more complications, including higher mortality rates after surgery (38.3% vs 23.2% at 1 year), suggesting a need for more research to enhance patient outcomes in these cases.
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Objectives: Age-related atherosclerosis has been shown to cause aortic stiffness and wall rigidification. This analysis aimed to correlate age and dissection extension length in a large contemporary multicentre study. We hypothesize that younger patients suffer more extensive DeBakey type I dissection due to aortic wall integrity, allowing unhindered extension within the layers.

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Background: The efficacy of different cardioplegia solutions on outcomes of complex cardiac operations such as triple valve surgery (TVS) is scarce. Here we compared the outcomes in TVS patients receiving either crystalloid (Bretschneider) or blood (Calafiore) cardioplegia.

Methods: Screening of our institutional database with prospectively entered data identified 471 consecutive patients (mean age 70.

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Objective: During a transcatheter aortic valve implant (TAVI) procedure, intraprocedural complications that are manageable only by conversion to emergency open-heart surgery (E-OHS) occasionally occur. Contemporary data on the incidence and outcome of TAVI patients undergoing E-OHS are scarce. This study aimed to evaluate early and midterm outcomes following E-OHS of patients undergoing TAVI in a large tertiary care centre with immediate surgical backup availability for all TAVI procedures over a 15-year period.

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