Publications by authors named "Wottke M"

Aims: We sought to determine the long-term outcome of high-risk patients who underwent transcatheter aortic valve replacement (TAVR) with first-generation devices with a focus on the identification of predictors for mortality and valve durability.

Methods And Results: Consecutive patients in our prospective single-centre registry undergoing TAVR with first-generation devices (n=214 CoreValve; n=86 SAPIEN) between 06/2007 and 07/2009 were retrospectively analysed (n=300, mean age 81.43±6.

View Article and Find Full Text PDF

Introduction And Objectives: TAVR is thought to change the volumes, characteristics, and outcomes of patients with aortic stenosis undergoing SAVR. We sought to investigate the impact of increasing transcatheter aortic valve replacement (TAVR) volumes on surgical aortic valve replacement (SAVR) volumes and to assess the evolution in baseline demographics and its impact on 30-day clinical outcomes across TAVR and SAVR patients.

Methods: From June 2007 through September 2015, 3543 consecutive patients with severe aortic stenosis who underwent TAVR (n=1407) or SAVR (n=2136) in a single center were subcategorized into nine cohorts defined by procedure year.

View Article and Find Full Text PDF
Article Synopsis
  • The study aimed to assess existing risk models for predicting mortality in adult patients undergoing congenital heart surgery and to evaluate a new model called the GUCH score specifically designed for this demographic.
  • Researchers analyzed data from 830 surgeries performed between 2004 and 2013, comparing various risk scores such as ABC, ACC, RACHS-1, and STS-EACTS.
  • Results showed that the GUCH score was the most effective at predicting mortality as it combines factors from existing models with a focus on comorbidities and patient age, indicating the importance of these factors in mortality predictions.
View Article and Find Full Text PDF
Article Synopsis
  • The St Jude Medical Trifecta valve is a new type of heart valve for replacing the aortic valve, aimed at improving surgical outcomes for patients with severe valve issues.
  • A study involving 837 patients who received the valve showed effective performance, with low pressure gradients, indicating good blood flow, and a high percentage experiencing no patient-prosthesis mismatch.
  • While the short-term results are promising with no significant complications reported, further long-term studies comparing it to other valves are necessary to evaluate its effectiveness over time.
View Article and Find Full Text PDF

Background: Due to a considerable rise in bioprosthetic as opposed to mechanical valve implantations, an increase of patients presenting with failing bioprosthetic surgical valves in need of a reoperation is to be expected. Redo surgery may pose a high-risk procedure. Transcatheter aortic valve-in-valve implantation is an innovative, less-invasive treatment alternative for these patients.

View Article and Find Full Text PDF
Article Synopsis
  • The study aimed to assess the long-term performance of the St. Jude Medical Biocor porcine stented bioprosthesis in patients who underwent aortic valve replacement; it involved 455 patients at the German Heart Center Munich from 1985 to 1996.
  • The results indicated a 10-year survival rate of 43.3% and a 15-year survival rate of 19.2%, with high freedom from structural valve deterioration (92.1% at 10 years) and low rates of reoperation due to valve-related issues.
  • Overall, the research highlights the durability and reliability of the St. Jude Medical Biocor prosthesis over an extended follow-up period, showcasing
View Article and Find Full Text PDF

Purpose: A retrospective comparison of refractive outcomes of a new, aspherically optimized profile with an enhanced energy correction feature (Triple-A) and the conventionally used aspherically optimized profile (ASA, or aberration smart ablation) for correction of low-to-high myopia.

Setting: Augen-OP-Centrum, Cologne, Germany.

Design: Retrospective nonrandomized comparative study.

View Article and Find Full Text PDF

Objectives: Minimal access aortic valve replacement has become routine in many institutions. Aim of this study was to compare the clinical outcomes between conventional and minimal access aortic valve replacement.

Methods: We retrospectively analysed the data of 2103 patients who underwent primary, isolated aortic valve replacement (AVR) in our institution between January 2001 and May 2012 with a minimal access AVR (MAAVR) via the upper partial ministernotomy approach (n = 936) or conventional AVR (CAVR) via the full sternotomy approach (n = 1167).

View Article and Find Full Text PDF

Purpose: One hundred eyes from 55 adult patients with myopia were retrospectively studied to determine the comparative safety, efficacy, and predictability of aberration smart ablation (ASA) and a new advanced ablation algorithm (Triple-A) using the MEL(®) 80 excimer laser.

Methods: Fifty myopic eyes with a manifest refraction spherical equivalent (MRSE) between -1.0 diopters (D) and -9.

View Article and Find Full Text PDF

Objectives: The aim of this study is to evaluate gender-related differences in clinical presentation and mortality in patients undergoing isolated surgical aortic valve replacement (SAVR).

Methods: We performed a retrospective analysis of all patients undergoing isolated SAVR from 2000 to 2011 in our center. Patient data were compared with regard to gender including baseline characteristics, 30-day, and late mortality.

View Article and Find Full Text PDF

Background: An increasing number of octogenarians are referred for cardiac surgical procedures. In this subset of patients, information on the health-related quality of life (HrQoL) is critical for decision making. However, there is a paucity of prospective data.

View Article and Find Full Text PDF

Objectives: The adult congenital heart disease (CHD) population has surpassed the paediatric CHD population. Half of all mortality caused by CHD occurs in adulthood; in some patients, it occurs during surgery. We sought to assess the potential risk factors for adverse outcome after cardiac operations in adults with CHD, and to evaluate the predictive power of the Aristotle score models for hospital mortality.

View Article and Find Full Text PDF

Matrix metalloproteinases (MMPs) and the tissue inhibitors of matrix metalloproteinases (TIMPs) regulate matrix remodeling in the heart. Changes in synthesis and release of MMPs and TIMPs are observed after extracorporeal circulation (ECC). Thus, MMPs and TIMPs are supposed to be involved in ECC-mediated cardiac dysfunction.

View Article and Find Full Text PDF

Background: Patients aged 80 years and older who require cardiac surgical procedures are an increasing population and usually present with considerable comorbidity. Detailed operative risk stratification versus long-term survival and quality of life after surgery is mandatory.

Methods: A retrospective analysis was performed on 1,003 patients aged 82.

View Article and Find Full Text PDF

Objective: Various surgical valve repair and replacement techniques have been developed over the past decades for patients with Ebstein's anomaly. Determination of the appropriate moment for surgery, however, has not been elucidated clearly enough.

Methods: From 1976 to 2007, 130 patients (mean age 23.

View Article and Find Full Text PDF

Background: The benefit of cardiac surgery in octogenarians is well described. Today, nearly every second patient who undergoes cardiac surgery is older than 70 years. The time between primary cardiac surgery and reoperation is 7 to 13 years.

View Article and Find Full Text PDF

Objectives: To improve patients' acceptance of the radial artery as a graft for coronary revascularization, we introduced an endoscopic harvesting technique. The aim of this study was to assess graft quality 1 year after the operation.

Methods: In 50 patients who underwent endoscopic radial artery harvesting for coronary artery bypass grafting, 64-slice computed tomography, electrocardiography, and echocardiography were utilized to assess graft patency and left ventricle function at a 1-year follow-up.

View Article and Find Full Text PDF

Objective: It is presumed that patient-prosthesis mismatch (PPM) influences morbidity and mortality after aortic valve replacement (AVR). The aim of our study was to determine the impact of PPM on physical capacity.

Methods: Six months after AVR with a bioprosthesis, stress echocardiography was performed on a bicycle ergometer in 312 patients.

View Article and Find Full Text PDF

Background: Carriers of the factor V Leiden mutation (FVL) are resistant to activated protein C proteolysis. Therefore, they are at increased risk of thromboembolic events. Aprotinin is an unspecific proteinase inhibitor frequently used during cardiac surgery procedures to reduce bleeding.

View Article and Find Full Text PDF

Objective: Trusler's valvuloplasty technique and its modifications are the standard approach for the repair of aortic insufficiency in combination with ventricular septal defect. However, recurrent aortic insufficiency may occur after repair. The timing of surgical intervention in patients with ventricular septal defect and aortic insufficiency is still controversial.

View Article and Find Full Text PDF

Background: The quest for an alternative to homografts for reconstruction of the right ventricular outflow tract is ongoing. The Shelhigh No-React (NR-4000PA series) treated porcine pulmonic valve conduit (SPVC) was developed as a potential alternative.

Methods: During a 12-month period from May 2004 to May 2005, the SPVC was implanted in 34 patients, of whom 62% were younger than 1 year.

View Article and Find Full Text PDF

Purpose: To determine the level of success of wavefront-guided repair of night vision disturbances after conventional (Munnerlyn) myopic LASIK using a new parameter to describe higher order aberrations, and to compare the improvements to matched myopic LASIK controls who were symptom-free.

Methods: We developed a single parameter metric to represent raw spherical aberration (RAWS) to functionally describe the cumulative spherical aberration for an eye over a range of physiological pupil sizes. To derive the RAWS parameter, spherical aberration is plotted over pupil analysis zones from 3000 to 6000 microm.

View Article and Find Full Text PDF

Background: Endoventricular patch reconstruction of the left ventricle is considered the gold standard in surgery for left ventricular aneurysms, because of improved preservation of ventricular geometry. However, the superiority over conventional linear closure has not been demonstrated, as assessed by the long-term outcome.

Methods: Two hundred patients (66%) underwent linear closure (group L) and 105 patients (34%) had endoventricular patch reconstruction (group D) using the Dor technique.

View Article and Find Full Text PDF

Objective: The standard method of analysing structural valve degeneration (SVD) of biological prostheses is the Kaplan-Meier method. In order to assess SVD with regard to competing risks (e.g.

View Article and Find Full Text PDF