Tobias Schmidt
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Tobias Schmidt has a total of 384 co-authors. Here are the top co-authors by number of shared publications:
Karl-Heinz Kuck
Department of Internal Medicine II, University Hospital of Schleswig-Holstein , Campus Lübeck, 23562 Lübeck , Germany
34 shared publicationsChristian Frerker
Department of Internal Medicine II, University Hospital of Schleswig-Holstein , Campus Lübeck, 23562 Lübeck , Germany
33 shared publicationsMichael Schlüter
18 shared publicationsDimitry Schewel
15 shared publicationsHannes Alessandrini
Department of Cardiology, Asklepios Klinik St.Georg, Hamburg, Germany
15 shared publicationsJury Schewel
Department of Cardiology, Asklepios Klinik St. Georg, Hamburg, Germany
15 shared publications
Latest Publications
- Open Access
- 4 February 2025
- Published by Wolters Kluwer Health in Journal of the American Heart Association
- Vol. 14 (3) , e038834
Direct Oral Anticoagulants Versus Vitamin K Antagonists After Mitral Valve Transcatheter Edge‐to‐Edge Repair in Patients With Atrial Fibrillation: A Single‐Center Observational Study
Background: Mitral valve transcatheter edge‐to‐edge repair (M‐TEER) has emerged as a viable therapy option in patients with severe mitral regurgitation and high surgical risk. Although atrial fibrillation is common among patients undergoing M‐TEER, the optimal anticoagulatory treatment after the intervention is unknown. Methods: A single‐center retrospective observational analysis was conducted using data from the M‐TEER registry at the University Hospital Cologne collected from 2019 untill 2021 including patients undergoing M‐TEER between November 2012 and April 2019. Patients with atrial fibrillation receiving consistent anticoagulation following M‐TEER were categorized into a direct oral anticoagulant or a vitamin K antagonist (VKA) group. The primary end point was a composite of ischemic cerebrovascular and bleeding events. Additionally, overall survival was assessed. Results: Among 613 patients undergoing M‐TEER, 206 met the inclusion criteria, with 61 receiving direct oral anticoagulants and 145 receiving VKAs. After a median follow‐up of 833 (interquartile range, 355–1271) days, the incidence of the composite primary end point did not differ between direct oral anticoagulant and VKA groups (hazard ratio [HR], 0.51 [95% CI, 0.23–1.12]; P =0.07). Similarly, rates of ischemic cerebrovascular events and bleeding events were similar between groups. However, the overall mortality rate was higher in the VKA group (HR, 2.56 [95% CI, 1.54–4.26]; P =0.002). In the multivariable analysis, oral anticoagulation with a VKA was an independent predictor for death (adjusted HR, 2.23 [95% CI, 1.08–5.06]; P =0.03). Conclusions: Our findings suggest that direct oral anticoagulants may offer comparable efficacy and safety to VKAs in preventing thromboembolic events following M‐TEER in patients with atrial fibrillation. Further randomized trials are needed to confirm these results and establish optimal anticoagulation strategies in this patient population.
- 4 February 2025
- Published by Wolters Kluwer Health in Journal of the American Heart Association
- Vol. 14 (3) , e038834
Open AccessDirect Oral Anticoagulants Versus Vitamin K Antagonists After Mitral Valve Transcatheter Edge‐to‐Edge Repair in Patients With Atrial Fibrillation: A Single‐Center Observational Study
Background: Mitral valve transcatheter edge‐to‐edge repair (M‐TEER) has emerged as a viable therapy option in patients with severe mitral regurgitation and high surgical risk. Although atrial fibrillation is common among patients undergoing M‐TEER, the optimal anticoagulatory treatment after the intervention is unknown. Methods: A single‐center retrospective observational analysis was conducted using data from the M‐TEER registry at the University Hospital Cologne collected from 2019 untill 2021 including patients undergoing M‐TEER between November 2012 and April 2019. Patients with atrial fibrillation receiving consistent anticoagulation following M‐TEER were categorized into a direct oral anticoagulant or a vitamin K antagonist (VKA) group. The primary end point was a composite of ischemic cerebrovascular and bleeding events. Additionally, overall survival was assessed. Results: Among 613 patients undergoing M‐TEER, 206 met the inclusion criteria, with 61 receiving direct oral anticoagulants and 145 receiving VKAs. After a median follow‐up of 833 (interquartile range, 355–1271) days, the incidence of the composite primary end point did not differ between direct oral anticoagulant and VKA groups (hazard ratio [HR], 0.51 [95% CI, 0.23–1.12]; P =0.07). Similarly, rates of ischemic cerebrovascular events and bleeding events were similar between groups. However, the overall mortality rate was higher in the VKA group (HR, 2.56 [95% CI, 1.54–4.26]; P =0.002). In the multivariable analysis, oral anticoagulation with a VKA was an independent predictor for death (adjusted HR, 2.23 [95% CI, 1.08–5.06]; P =0.03). Conclusions: Our findings suggest that direct oral anticoagulants may offer comparable efficacy and safety to VKAs in preventing thromboembolic events following M‐TEER in patients with atrial fibrillation. Further randomized trials are needed to confirm these results and establish optimal anticoagulation strategies in this patient population.
- Open Access
- 1 February 2025
- Published by Oxford University Press (OUP) in European Heart Journal - Case Reports
- Vol. 9 (2) , ytaf066
Successful implantation of an EVOQUE-tricuspid valve replacement system in a patient with two right ventricular implantable cardioverter-defibrillator leads: a case report
Background: Tricuspid regurgitation (TR) is a disease with significant morbidity and mortality rates. Besides surgery and transcatheter edge-to-edge repair (TEER), transcatheter tricuspid valve replacement has evolved as a possible treatment option in high-risk patients with an unfavourable anatomy for TEER. Case summary: We present a case of an 82-year-old patient with torrential TR due to an annulus dilation and subsequent central gap of >8 mm. Echocardiographic guiding was impeded by the presence of two permanent right ventricular implantable cardioverter-defibrillator (ICD) leads and previous surgical aortic valve implantation and mitral valve reconstruction. An EVOQUE prosthesis (Edwards Lifesciences; Irvine, USA) was successfully implanted without impairment of the ICD function or significant paravalvular leakage. Conclusion: Transcatheter tricuspid valve replacement with the EVOQUE-tricuspid valve replacement system is feasible even in patients with two right ventricular ICD leads and limited echocardiographic visibility.
- 1 February 2025
- Published by Oxford University Press (OUP) in European Heart Journal - Case Reports
- Vol. 9 (2) , ytaf066
Open AccessSuccessful implantation of an EVOQUE-tricuspid valve replacement system in a patient with two right ventricular implantable cardioverter-defibrillator leads: a case report
Background: Tricuspid regurgitation (TR) is a disease with significant morbidity and mortality rates. Besides surgery and transcatheter edge-to-edge repair (TEER), transcatheter tricuspid valve replacement has evolved as a possible treatment option in high-risk patients with an unfavourable anatomy for TEER. Case summary: We present a case of an 82-year-old patient with torrential TR due to an annulus dilation and subsequent central gap of >8 mm. Echocardiographic guiding was impeded by the presence of two permanent right ventricular implantable cardioverter-defibrillator (ICD) leads and previous surgical aortic valve implantation and mitral valve reconstruction. An EVOQUE prosthesis (Edwards Lifesciences; Irvine, USA) was successfully implanted without impairment of the ICD function or significant paravalvular leakage. Conclusion: Transcatheter tricuspid valve replacement with the EVOQUE-tricuspid valve replacement system is feasible even in patients with two right ventricular ICD leads and limited echocardiographic visibility.
- Open Access
- 31 July 2024
- Published by Elsevier in Hellenic Journal of Cardiology
- Vol. 87, 121-132
Comparison of different venous access ways for right heart catheterization—a meta-analysis
- 31 July 2024
- Published by Elsevier in Hellenic Journal of Cardiology
- Vol. 87, 121-132
Open AccessComparison of different venous access ways for right heart catheterization—a meta-analysis
- Open Access
- 2 July 2024
- Published by Oxford University Press (OUP) in European Heart Journal - Case Reports
- Vol. 8 (7) , ytae336
CardioTwins: case report of a transcatheter mitral and tricuspid valve implantation in one patient
Background: Besides transcatheter edge-to-edge repair (TEER), there are new interventional treatment options for mitral and tricuspid regurgitation in evaluation, such as a complete replacement of the valve through a prosthesis. Case summary: A 78-year-old previous coronary artery bypass graft-operated patient with symptomatic severe mitral regurgitation and tricuspid regurgitation was sequentially treated by a transfemoral transcatheter mitral and tricuspid valve prosthesis (Cardiovalve; Cardiovalve Ltd, Israel) due to unfavourable mitral valve anatomy. The transcatheter mitral valve implantation (TMVI) was performed first and after progression of the tricuspid regurgitation, a second transcatheter valve prosthesis was implanted in tricuspid position (TTVI) 1.5 years later. Imaging showed a twin look-alike picture of a mitral and tricuspid prosthesis and showing the possibility of a complete transcatheter based replacement of the mitral and tricuspid valve. Discussion: This case shows the possibility of a Cardiovalve prosthesis being used for TMVI and TTVI in a single patient. Especially in TEER ineligible patients, it might be a good treatment option after device approval.
- 2 July 2024
- Published by Oxford University Press (OUP) in European Heart Journal - Case Reports
- Vol. 8 (7) , ytae336
Open AccessCardioTwins: case report of a transcatheter mitral and tricuspid valve implantation in one patient
Background: Besides transcatheter edge-to-edge repair (TEER), there are new interventional treatment options for mitral and tricuspid regurgitation in evaluation, such as a complete replacement of the valve through a prosthesis. Case summary: A 78-year-old previous coronary artery bypass graft-operated patient with symptomatic severe mitral regurgitation and tricuspid regurgitation was sequentially treated by a transfemoral transcatheter mitral and tricuspid valve prosthesis (Cardiovalve; Cardiovalve Ltd, Israel) due to unfavourable mitral valve anatomy. The transcatheter mitral valve implantation (TMVI) was performed first and after progression of the tricuspid regurgitation, a second transcatheter valve prosthesis was implanted in tricuspid position (TTVI) 1.5 years later. Imaging showed a twin look-alike picture of a mitral and tricuspid prosthesis and showing the possibility of a complete transcatheter based replacement of the mitral and tricuspid valve. Discussion: This case shows the possibility of a Cardiovalve prosthesis being used for TMVI and TTVI in a single patient. Especially in TEER ineligible patients, it might be a good treatment option after device approval.
- 8 April 2022
- Published by Springer Nature in Clinical Research in Cardiology
- Vol. 111 (8) , 969-970
Correction: A systematic review and meta-analysis of the cerebrovascular event incidence after transcatheter aortic valve implantation
- 8 April 2022
- Published by Springer Nature in Clinical Research in Cardiology
- Vol. 111 (8) , 969-970
Correction: A systematic review and meta-analysis of the cerebrovascular event incidence after transcatheter aortic valve implantation
- 17 March 2022
- Published by Springer Nature in Clinical Research in Cardiology
- Vol. 111 (8) , 843-858
A systematic review and meta-analysis of the cerebrovascular event incidence after transcatheter aortic valve implantation
Objective Periinterventional stroke is one of the most feared potential complication, among patients treated with transcatheter aortic valve implantation (TAVI). The purpose of this review was to investigate the incidence of cerebrovascular events and the influence of postinterventional neurologic check-up in patients undergoing TAVI. Methods A systematic review and meta-analysis were conducted according to the PRISMA guideline. Three separate electronic searches of the public domains Medline and Clinicaltrials.gov were performed to identify the 30-day incidence of stroke within randomized controlled trials (RCTs) and registries for patients undergoing a TAVI procedure. A meta-analysis was conducted to evaluate the 30-day incidence of stroke within RCTs. Furthermore, we pooled the RCTs in which a scheduled neurological check-up was conducted or not to investigate the effect of this intervention. Results Twenty-three studies including 399,532,491 TAVI patients were included, 6370 from RCTs, 857,833 from cerebral-embolic protection device RCTs and 392,288 were adopted from registries. The mean 30-day incidence of stroke among all reviewed studies was 2.33%. In RCTs evaluating TAVI the pooled stroke incidence was 3.86%, among RCTs focused CEP the incidence was 6.4436% and in registries the incidence was 2.29%. Ten RCTs conducted scheduled neurological check-ups, the incidence in these was 4.03% and among the remaining RCTs it was 2.47%. In the meta-analysis, the pooled 30-day stroke incidence was 3.61% (95% CI 2.57–4.79%). Conclusion This systematic review demonstrates that the stroke incidences following TAVI differ strongly according to the study design and neurological follow-up. Intense neurological testing increases the incidence of a stroke after TAVI. Graphical abstract
- 17 March 2022
- Published by Springer Nature in Clinical Research in Cardiology
- Vol. 111 (8) , 843-858
A systematic review and meta-analysis of the cerebrovascular event incidence after transcatheter aortic valve implantation
Objective Periinterventional stroke is one of the most feared potential complication, among patients treated with transcatheter aortic valve implantation (TAVI). The purpose of this review was to investigate the incidence of cerebrovascular events and the influence of postinterventional neurologic check-up in patients undergoing TAVI. Methods A systematic review and meta-analysis were conducted according to the PRISMA guideline. Three separate electronic searches of the public domains Medline and Clinicaltrials.gov were performed to identify the 30-day incidence of stroke within randomized controlled trials (RCTs) and registries for patients undergoing a TAVI procedure. A meta-analysis was conducted to evaluate the 30-day incidence of stroke within RCTs. Furthermore, we pooled the RCTs in which a scheduled neurological check-up was conducted or not to investigate the effect of this intervention. Results Twenty-three studies including 399,532,491 TAVI patients were included, 6370 from RCTs, 857,833 from cerebral-embolic protection device RCTs and 392,288 were adopted from registries. The mean 30-day incidence of stroke among all reviewed studies was 2.33%. In RCTs evaluating TAVI the pooled stroke incidence was 3.86%, among RCTs focused CEP the incidence was 6.4436% and in registries the incidence was 2.29%. Ten RCTs conducted scheduled neurological check-ups, the incidence in these was 4.03% and among the remaining RCTs it was 2.47%. In the meta-analysis, the pooled 30-day stroke incidence was 3.61% (95% CI 2.57–4.79%). Conclusion This systematic review demonstrates that the stroke incidences following TAVI differ strongly according to the study design and neurological follow-up. Intense neurological testing increases the incidence of a stroke after TAVI. Graphical abstract
- 1 January 2020
- Published by Europa Digital & Publishing in EuroIntervention
- Vol. 15 (13) , 1181-1189
Early haemodynamic changes and long-term outcome of patients with severe low-gradient aortic stenosis after transcatheter aortic valve replacement
The Official Journal of EuroPCR and the European Association of Percutaneous Cardiovascular Interventions (EAPCI)
- 1 January 2020
- Published by Europa Digital & Publishing in EuroIntervention
- Vol. 15 (13) , 1181-1189
Early haemodynamic changes and long-term outcome of patients with severe low-gradient aortic stenosis after transcatheter aortic valve replacement
The Official Journal of EuroPCR and the European Association of Percutaneous Cardiovascular Interventions (EAPCI)
- Open Access
- 1 December 2019
- Published by Oxford University Press (OUP) in European Journal of Heart Failure
- Vol. 21 (12) , 1638-1650
Less Invasive Ventricular Reconstruction for Ischaemic Heart Failure
Aims Surgical ventricular reconstruction to remodel, reshape, and reduce ventricular volume is an effective therapy in selected patients with chronic heart failure (HF) of ischaemic aetiology. The BioVentrix Revivent TC System offers efficacy comparable to conventional surgical ventricular reconstruction and is less invasive utilizing micro‐anchor pairs to exclude scarred myocardium on the beating heart. Here, we present 12‐months follow‐up data of an international multicenter study. Methods and results Patients were considered eligible for the procedure when they presented with symptomatic HF [New York Heart Association (NYHA) class ≥II], left ventricular (LV) dilatation and dysfunction caused by myocardial infarction, and akinetic and/or dyskinetic transmural scarred myocardium located in the anteroseptal, anterolateral, and/or apical regions. A total of 89 patients were enrolled and 86 patients were successfully treated (97%). At 12 months, a significant improvement in LV ejection fraction (29 ± 8% vs. 34 ± 9%, P < 0.005) and a reduction of LV volumes was observed (LV end‐systolic and end‐diastolic volume index both decreased: 74 ± 28 mL/m2 vs. 54 ± 23 mL/m2, P < 0.001; and 106 ± 33 mL/m2 vs. 80 ± 26 mL/m2, respectively, P < 0.0001). Four patients (4.5%) died in hospital and survival at 12 months was 90.6%. At baseline, 59% of HF patients were in NYHA class III compared with 22% at 12‐month follow‐up. Improvements in quality of life measures (Minnesota Living with Heart Failure Questionnaire 39 vs. 26 points, P < 0.001) and 6‐min walking test distance (363 m vs. 416 m, P = <0.001) were also significant. Conclusions Treatment with the Revivent TC System in patients with symptomatic HF results in significant and sustained reduction of LV volumes and improvement of LV function, symptoms, and quality of life.
- 1 December 2019
- Published by Oxford University Press (OUP) in European Journal of Heart Failure
- Vol. 21 (12) , 1638-1650
Open AccessLess Invasive Ventricular Reconstruction for Ischaemic Heart Failure
Aims Surgical ventricular reconstruction to remodel, reshape, and reduce ventricular volume is an effective therapy in selected patients with chronic heart failure (HF) of ischaemic aetiology. The BioVentrix Revivent TC System offers efficacy comparable to conventional surgical ventricular reconstruction and is less invasive utilizing micro‐anchor pairs to exclude scarred myocardium on the beating heart. Here, we present 12‐months follow‐up data of an international multicenter study. Methods and results Patients were considered eligible for the procedure when they presented with symptomatic HF [New York Heart Association (NYHA) class ≥II], left ventricular (LV) dilatation and dysfunction caused by myocardial infarction, and akinetic and/or dyskinetic transmural scarred myocardium located in the anteroseptal, anterolateral, and/or apical regions. A total of 89 patients were enrolled and 86 patients were successfully treated (97%). At 12 months, a significant improvement in LV ejection fraction (29 ± 8% vs. 34 ± 9%, P < 0.005) and a reduction of LV volumes was observed (LV end‐systolic and end‐diastolic volume index both decreased: 74 ± 28 mL/m2 vs. 54 ± 23 mL/m2, P < 0.001; and 106 ± 33 mL/m2 vs. 80 ± 26 mL/m2, respectively, P < 0.0001). Four patients (4.5%) died in hospital and survival at 12 months was 90.6%. At baseline, 59% of HF patients were in NYHA class III compared with 22% at 12‐month follow‐up. Improvements in quality of life measures (Minnesota Living with Heart Failure Questionnaire 39 vs. 26 points, P < 0.001) and 6‐min walking test distance (363 m vs. 416 m, P = <0.001) were also significant. Conclusions Treatment with the Revivent TC System in patients with symptomatic HF results in significant and sustained reduction of LV volumes and improvement of LV function, symptoms, and quality of life.
- 1 November 2019
- Published by Elsevier in JACC: Cardiovascular Interventions
- Vol. 12 (21) , 2155-2168
Impact of Pulmonary Hypertension Hemodynamic Status on Long-Term Outcome After Transcatheter Aortic Valve Replacement
- 1 November 2019
- Published by Elsevier in JACC: Cardiovascular Interventions
- Vol. 12 (21) , 2155-2168
Impact of Pulmonary Hypertension Hemodynamic Status on Long-Term Outcome After Transcatheter Aortic Valve Replacement
- 1 October 2019
- Published by Europa Digital & Publishing in EuroIntervention
- Vol. 15 (9) , e757-e763
Thirty-day outcomes of a novel transcatheter heart valve to treat degenerated surgical valves: the VIVALL multicentre, single-arm, pilot study
The Official Journal of EuroPCR and the European Association of Percutaneous Cardiovascular Interventions (EAPCI)
- 1 October 2019
- Published by Europa Digital & Publishing in EuroIntervention
- Vol. 15 (9) , e757-e763
Thirty-day outcomes of a novel transcatheter heart valve to treat degenerated surgical valves: the VIVALL multicentre, single-arm, pilot study
The Official Journal of EuroPCR and the European Association of Percutaneous Cardiovascular Interventions (EAPCI)