13 results on '"Matthias Hammerer"'
Search Results
2. Deoxyribonuclease is prognostic in patients undergoing transcatheter aortic valve replacement
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Evelyne Wohlschläger-Krenn, Moritz Mirna, Anna S. Ondracek, Johanna Nechvile, Alexander Lauten, Dzeneta Fejzic, Brunilda Alushi, Michael Lichtenauer, Andreas Mangold, Irene M. Lang, Noel G. Panagiotides, Bernhard Wernly, Matthias Hammerer, Marcus Franz, Thomas M. Hofbauer, Paul Christian Schulze, Uta C. Hoppe, and Tyler Artner
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Male ,medicine.medical_specialty ,medicine.medical_treatment ,Clinical Biochemistry ,Kaplan-Meier Estimate ,030204 cardiovascular system & hematology ,Biochemistry ,Extracellular Traps ,Transcatheter Aortic Valve Replacement ,03 medical and health sciences ,0302 clinical medicine ,Valve replacement ,Internal medicine ,medicine ,Humans ,030212 general & internal medicine ,Aged ,Enzyme Assays ,Proportional Hazards Models ,Aged, 80 and over ,Deoxyribonucleases ,Receiver operating characteristic ,business.industry ,Mean Aortic Pressure ,Deoxyribonuclease ,General Medicine ,Neutrophil extracellular traps ,Aortic Valve Stenosis ,Middle Aged ,medicine.disease ,Deoxyribonuclease activity ,Prognosis ,Stenosis ,Aortic valve stenosis ,Cardiology ,Female ,business - Abstract
Degenerative aortic valve stenosis is an inflammatory process that resembles atherosclerosis. Neutrophils release their DNA upon activation and form neutrophil extracellular traps (NETs), which are present on degenerated aortic valves. NETs correlate with pressure gradients in severe aortic stenosis. Transcatheter aortic valve replacement (TAVR) is an established treatment option for aortic valve stenosis. Bioprosthetic valve deterioration promoted by inflammatory, fibrotic and thrombotic processes limits outcome. Deoxyribonuclease is a natural counter mechanism to degrade DNA in circulation. In the present observational study, we investigated plasma levels of double-stranded DNA, deoxyribonuclease activity and outcome after TAVR. 345 consecutive patients undergoing TAVR and 100 healthy reference controls were studied. Double-stranded DNA was measured by fluorescence assays in plasma obtained at baseline and after TAVR. Deoxyribonuclease activity was measured at baseline using single radial enzyme diffusion assays. Follow-up was performed at 12 months, and mean aortic pressure gradient and survival were evaluated. Receiver operating characteristic, Kaplan-Meier curves and Cox regression models were calculated. Baseline double-stranded DNA in plasma was significantly higher compared to healthy controls, was increased at 3 and 7 days after TAVR, and declined thereafter. Baseline deoxyribonuclease activity was decreased compared to healthy controls. Interestingly, low deoxyribonuclease activity correlated with higher C-reactive protein and higher mean transaortic gradient after 12 months. Finally, deoxyribonuclease activity was a strong independent predictor of outcome 12 months after TAVR. Deoxyribonuclease activity is a potential biomarker for risk stratification after TAVR. Pathomechanisms of bioprosthetic valve deterioration involving extracellular DNA and deoxyribonuclease merit investigation.
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- 2021
3. TCT-154 Advanced Radiation Protection in PCI and Diagnostic Procedures With a Ceiling-Suspended Radiation Protection System—Data From the OSCAR Registry
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Mathias C. Brandt, Bernhard Strohmer, Christiana Schernthaner, Michael Lichtenauer, Olaf Nairz, Matthias Hammerer, Erika Prinz, Uta C. Hoppe, Lukas J. Motloch, Wilfried Wintersteller, and Johannes Kraus
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medicine.medical_specialty ,business.industry ,Conventional PCI ,medicine ,Medical physics ,Radiation protection ,Ceiling (cloud) ,Cardiology and Cardiovascular Medicine ,business - Published
- 2021
4. Prasugrel compared to ticagrelor in primary PCI
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Elisabeth Lassnig, Matthias Frick, Peter Siostrzonek, Hannes Alber, Matthias Hasun, Michael Edlinger, Kurt Huber, Franz Weidinger, Rudolf Berger, J. Doerler, Gudrun Lamm, Clemens Steinwender, Franz X. Roithinger, D Von Lewinski, and Matthias Hammerer
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medicine.medical_specialty ,Prasugrel ,business.industry ,Internal medicine ,Conventional PCI ,medicine ,Cardiology ,Cardiology and Cardiovascular Medicine ,business ,Ticagrelor ,medicine.drug - Abstract
Background Prasugrel and ticagrelor have similar recommendations in the setting of primary PCI by current guidelines. Data comparing both in daily clinical practice of primary PCI for ST-elevation myocardial infarction is limited. Purpose To compare the effect of prasugrel and ticagrelor on in-hospital outcomes after primary PCI. Methods and results We prospectively enrolled 5365 patients treated with prasugrel (n=2785, 51.9%) or ticagrelor (n=2580; 48.1%) in the setting of primary PCI from January 2011 to December 2018 in a nationwide registry. In-hospital outcomes were compared and multiple logistic regression analysis was performed. Prasugrel treated patients were younger, less often in cardiogenic shock, with lower rates of previous stroke and had shorter ischemic time. Both groups showed similar rates of previous MI, diabetes and current resuscitation. In the univariate analysis mortality was lower in patients with prasugrel (2.5% vs. 4.4% p After adjustment in multivariable analysis mortality (0.99 95% CI 0.57 to 1.72), MACE (OR 0.99 95% CI 0.65 to 1.52) as well as NACE (0.86 95% CI 0.61 to 1.22) did not differ in patients treated with prasugrel compared to ticagrelor. Conclusion Patients treated with prasugrel showed improved outcomes compared to ticagrelor in a large cohort of primary PCI. However, after adjustment for confounders the Advantage of prasugrel in primary PCI did not persist. Funding Acknowledgement Type of funding source: Other. Main funding source(s): Austrian Society of Cardiology
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- 2020
5. Impact of On-Site Cardiac Surgery on Clinical Outcomes After Transfemoral Transcatheter Aortic Valve Replacement
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Florian Egger, David Zweiker, Matthias K. Freynhofer, Verena Löffler, Miklos Rohla, Alexander Geppert, Serdar Farhan, Birgit Vogel, Jürgen Falkensammer, Johannes Kastner, Philipp Pichler, Paul Vock, Gudrun Lamm, Olev Luha, Albrecht Schmidt, Daniel Scherr, Matthias Hammerer, Uta C. Hoppe, Edwin Maurer, Michael Grund, Thomas Lambert, Wolfgang Tkalec, Thomas Sturmberger, Eduard Zeindlhofer, Martin Grabenwöger, Kurt Huber, Peter Smetana, Emil Wessely, Herbert Hammerl, Afshin Assadian, Anton Bambazek, Klaus Osinger, Robert Maier, Heinrich Mächler, Wolfgang Marte, Helmut Brussee, Christoph Holzinger, Christoph Hörmann, Christoph Schuschnig, Peter Gerner, Rainald Seitelberger, Erika Prinz, Wilfried Wintersteller, Christian Punzengruber, Elisabeth Lassnig, Alexander Kypta, Jürgen Kammler, Clemens Steinwender, Joseph Aichinger, Peter Siostrzonek, and RS: CARIM - R2.01 - Clinical atrial fibrillation
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Logistic euroscore ,medicine.medical_specialty ,Transcatheter aortic ,medicine.medical_treatment ,SOCIETY ,IMPLANTATION TAVI INSIGHTS ,VALVULAR HEART-DISEASE ,030204 cardiovascular system & hematology ,TAVR ,STENOSIS ,03 medical and health sciences ,0302 clinical medicine ,Valve replacement ,medicine ,MANAGEMENT ,030212 general & internal medicine ,business.industry ,on-site cardiac surgery ,valvular heart disease ,aortic stenosis ,transfemoral ,Perioperative ,medicine.disease ,Surgery ,Cardiac surgery ,Stenosis ,EDWARDS SAPIEN ,REGISTRY ,Propensity score matching ,Cardiology and Cardiovascular Medicine ,business ,TASK-FORCE - Abstract
OBJECTIVES This study sought to investigate the outcome of high-risk and inoperable patients with severe symptomatic aortic stenosis undergoing transfemoral transcatheter aortic valve replacement (TAVR) in hospitals with (iOSCS) versus without institutional on-site cardiac surgery (no-iOSCS).BACKGROUND Current guidelines recommend the use of TAVR only in institutions with a department for cardiac surgery on site.METHODS In this analysis of the prospective multicenter Austrian TAVI registry, 1,822 consecutive high-risk patients with severe symptomatic aortic stenosis undergoing transfemoral TAVR were evaluated. A total of 290 (15.9%) underwent TAVR at no-iOSCS centers (no-iOSCS group), whereas the remaining 1,532 patients (84.1%) were treated in iOSCS centers (iOSCS group).RESULTS Patients of the no-iOSCS group had a higher perioperative risk defined by the logistic EuroSCORE (20.9% vs. 14.2%; pCONCLUSIONS Patients undergoing transfemoral TAVR in hospitals without iOSCS had a significantly higher baseline risk profile. After propensity score matching short-and long-term mortality was similar between centers with and without iOSCS. (c) 2018 by the American College of Cardiology Foundation.
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- 2018
6. Radial versus femoral access site for percutaneous coronary intervention in patients suffering acute myocardial infarction
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Matthias Heigert, Matthias Hammerer, Christiana Schernthaner, Jochen Schuler, Peter Siostrzonek, Maurer E, Kurt Hoellinger, Johann Altenberger, Hanno Ulmer, Elisabeth Lassnig, Andreas Winter, and Stefan Harb
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Male ,medicine.medical_specialty ,medicine.medical_treatment ,Myocardial Infarction ,030204 cardiovascular system & hematology ,Coronary Angiography ,Cohort Studies ,03 medical and health sciences ,Percutaneous Coronary Intervention ,0302 clinical medicine ,Hematoma ,Multicenter trial ,Clinical endpoint ,Humans ,Medicine ,Prospective Studies ,030212 general & internal medicine ,Myocardial infarction ,Aged ,business.industry ,Percutaneous coronary intervention ,General Medicine ,Length of Stay ,Middle Aged ,Radiation Exposure ,medicine.disease ,Surgery ,Femoral Artery ,Catheter ,Acute Disease ,Radial Artery ,Conventional PCI ,Female ,business ,Complication - Abstract
Transradial access (TRA) in percutaneous coronary intervention (PCI) is a widely used standard technique with lower complication rates compared to transfemoral access (TFA). The aim of this study was to evaluate the impact of TRA versus TFA for PCI on clinically significant vascular access complications in the setting of acute myocardial infarction (AMI). This multicenter study randomly assigned 250 patients in a 1:1 fashion (TRA vs. TFA) admitted with or without ST-segment elevation AMI undergoing immediate PCI. The primary endpoint was defined as the occurrence of hematoma, pseudo-aneurysm or local bleeding at the access site requiring any further intervention and/or prolonged hospital stay. Radiation exposure to the patient and operator was also investigated. In the study cohort (N = 250 patients, mean age 62 ± 12.7 years, 76% males) 5 patients (2%) achieved the primary endpoint without a significant difference between groups, 4 out of 125 (3.2%) in the TFA group and 1 out of 125 (0.8%) in the TRA group (p = 0.17). Access site hematoma was significantly more frequent in the TFA group compared to the TRA group (24.8% vs. 8.8%, respectively; p < 0.0007). Local bleeding was only seen in the TFA group (3.2% vs. 0%, p = 0.04). Time intervals from admission to catheter laboratory to first balloon inflation were longer in the TRA compared to the TFA group (34 ± 17 min vs 29.5 ± 13 min, respectively; p = 0.018). Radiation exposure to the patient and operator was identical. The use of TRA was accompanied by lower rates of access site complications; however, the need for subsequent treatment or prolonged hospital stays was not observed using either of the two access approaches.
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- 2017
7. Structure of therapy and compliance of patients with severe arterial hypertension
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Aigerim Mussina, Raikhan Tuleutayeva, Laura Pak, Matthias Hammerer, Natalya Cebotarenko, and Assem Makhatova
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medicine.medical_specialty ,arterial hypertension ,business.industry ,Medical record ,Specialties of internal medicine ,Mean age ,compliance ,RC31-1245 ,Compliance (physiology) ,pharmacotherapy ,Pharmacotherapy ,RC581-951 ,Internal medicine ,Medicine ,Patient survey ,In patient ,Clinical efficacy ,business - Abstract
The purpose of the study was to determine the structure, compliance to antihypertensive pharmacotherapy in patients with arterial hypertension of the third degree in the conditions of Semey and the frequency of achieving target BP. The study included 618 patients with hypertension III degree. The age of patients ranged from 38 to 77 years (mean age - 61,2 ± 2,7 years). Among the surveyed men was -353, women - 265. Carried out an analysis of medical records and patient survey to determine the structure of antihypertensive therapy, compliance to it and the existing violations preparations reception mode. Was revealed prevalence in the appointment’s structure the combinations of antihypertensive drugs (46.0%) and fixed combinations (29.0%). Monotherapy performed more frequently with beta-blockers and calcium channel antagonists. It revealed the greatest compliance to the use of fixed combinations of drugs and most high clinical efficacy of antihypertensive therapy options.
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- 2017
8. Transcatheter aortic valve implantation without prior balloon valvuloplasty is associated with less pronounced markers of myocardial injury
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Michael Lichtenauer, Matthias Hammerer, Christian Jung, Bernhard Wernly, Sarah Eder, Uta C. Hoppe, Wilfried Wintersteller, Moritz Mirna, and Erika Prinz
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Aortic valve ,Balloon Valvuloplasty ,Male ,medicine.medical_specialty ,Time Factors ,medicine.medical_treatment ,030204 cardiovascular system & hematology ,Risk Assessment ,Cohort Studies ,Transcatheter Aortic Valve Replacement ,03 medical and health sciences ,0302 clinical medicine ,Aortic valve replacement ,Troponin T ,Internal medicine ,Cause of Death ,Preoperative Care ,medicine ,Humans ,Hospital Mortality ,Aged ,Retrospective Studies ,Aged, 80 and over ,Ejection fraction ,business.industry ,Retrospective cohort study ,Stroke Volume ,General Medicine ,Perioperative ,Aortic Valve Stenosis ,medicine.disease ,Prognosis ,Survival Analysis ,Echocardiography, Doppler ,Aortic valvuloplasty ,Stenosis ,medicine.anatomical_structure ,Treatment Outcome ,030228 respiratory system ,Aortic valve stenosis ,Heart Valve Prosthesis ,Cardiology ,Surgery ,Female ,Patient Safety ,Cardiology and Cardiovascular Medicine ,business ,Biomarkers - Abstract
Aortic valve stenosis is the most common valvulopathy in developed countries. Transcatheter aortic valve implantation (TAVI) is a therapeutic alternative in symptomatic patients at high or prohibitive perioperative risk. Predilatation by balloon aortic valvuloplasty (BAV) under rapid ventricular pacing (RVP) has been a routine part of TAVI. However, both RVP and BAV carry substantial risks and an increasing number of interventional centers are performing TAVI without predilatation (direct TAVI). A transient decrease of left ventricular function and elevated markers of myocardial injury after TAVI with predilatation were observed in previous studies. In this study, we investigated whether direct TAVI was associated with a similar increase in cardiac biomarkers and decrease in ejection fraction in a cohort of our patients.Consecutive patients undergoing TAVI without predilatation using a self-expanding system at a single center between April 2013 and December 2015 were followed up for one year and were retrospectively analyzed regarding mortality, safety and efficacy endpoints as well as common laboratory and echocardiographic parameters.A total of 164 patients (83±6 years; 56% female) were included in the analysis. According to the Valve Academic Research Consortium 2 (VARC-2) criteria the technical success rate was 96.3% and 89.1% of patients remained free of a combined safety endpoint at 30 days. Mortality rates at 30 days and 1 year were 3.0% (N.=5) and 10.4% (N.=17), respectively. TAVI without predilatation was highly effective in lowering aortic valve peak velocity from 4.4±0.6 m/s before to 1.7±0.5 m/s (P0.01), and mean pressure gradient across the valve from 48.7±15.1 mmHg to 8.3±4.5 mmHg (0.05). Left ventricular function remained unaltered after the intervention (51±10% prior to TAVI and 51±9% post TAVI), whereas high sensitive troponin T (hs-TnT), a well-established marker for myocardial injury, increased significantly from 26 ng/L (interquartile range=18.00-44.00) to 119 ng/L (interquartile range=73.25-166.00, P0.001) during this time. Notably, an increase in the plasma levels of hs-TnT15 times the upper limit of normal was associated with mortality both one month and one year after TAVI.TAVI without predilatation is feasible, safe and effective for aortic valve replacement in symptomatic patients with severe aortic stenosis who are at high perioperative risk. In contrast to a cohort of patients who underwent TAVI with predilatation previously published by another center, our patients did not suffer from transient impairment of left ventricular function. As a marker of myocardial injury, hs-TnT showed a less pronounced increase than reported previously. This might be a marker for a prognostic benefit as hs-TnT has been shown to be a strong predictor of outcome in patients undergoing TAVI. We conclude that direct TAVI is a less invasive option involving less myocardial stress.
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- 2018
9. High Incidence of Echocardiographic Abnormalities of the Interatrial Septum in Patients Undergoing Ablation for Atrial Fibrillation
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Bernhard Strohmer, Franz Danmayr, Christiana Schernthaner, Jörg Eichinger, Apollonia Daburger, and Matthias Hammerer
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Male ,medicine.medical_specialty ,Radiofrequency ablation ,medicine.medical_treatment ,law.invention ,Aneurysm ,Risk Factors ,Fibrosis ,law ,Internal medicine ,Atrial Fibrillation ,medicine ,Humans ,Radiology, Nuclear Medicine and imaging ,Heart Atria ,cardiovascular diseases ,Thrombus ,Atrial Septum ,business.industry ,Incidence ,Atrial fibrillation ,Middle Aged ,medicine.disease ,Ablation ,medicine.anatomical_structure ,Echocardiography ,Austria ,Catheter Ablation ,cardiovascular system ,Patent foramen ovale ,Cardiology ,Radiology ,Cardiology and Cardiovascular Medicine ,business ,Interatrial septum - Abstract
Background: Atrial fibrosis or fatty deposition is known to increase the propensity for the development of atrial fibrillation (AF). Apart from the pulmonic veins, the interatrial septum (IAS) might play a role in the maintenance of AF. In contrast to left atrial anatomy and adjacent veins, the IAS cannot be visualized in detail with computed tomography. Thus, preprocedural transesophageal echocardiography (TEE) may provide important morphologic information beyond exclusion from atrial thrombi. Methods: The study comprised 108 consecutive patients (mean age 60 ± 11 years; 98 men). AF was paroxysmal in 91 (84%) and persistent in 17 (16%) patients. We investigated the morphological characteristics of the IAS by TEE in patients who underwent radiofrequency ablation of AF. Results: The IAS was structurally abnormal in 46 (43%) patients, showing the following echocardiograhic findings: atrial septal hypermobility or aneurysm (n = 27) associated with a patent foramen ovale (PFO) (n = 11) or with a small atrial septal defect (ASD) (n = 2), a septal flap associated with a PFO or an ASD (n = 8), and an abnormally thickened IAS (n = 12). A thrombus in the left atrial appendage was discovered in only 2 (2%) patients. Conclusions: A structurally abnormal IAS was diagnosed in nearly half of the patients undergoing ablation therapy for AF. The information obtained by TEE is mandatory to exclude left atrial thrombi prior the ablation procedure. Moreover, detailed knowledge of morphologic characteristics of the IAS facilitates an optimized and safe performance of the transseptal puncture using long sheaths with large diameters. (Echocardiography 2013;30:402-406)
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- 2012
10. Rehospitalization rates after transcatheter aortic valve implantation
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Matthias Heigert, Melinda Matzinger, Maximilian Pichler, Johann Altenberger, Erika Prinz, Johannes Kraus, Jochen Schuler, and Matthias Hammerer
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Male ,Cardiac Catheterization ,medicine.medical_specialty ,Transcatheter aortic ,Comorbidity ,Single Center ,Risk Assessment ,Postoperative Complications ,Risk Factors ,medicine ,Clinical endpoint ,Humans ,Aged, 80 and over ,Heart Valve Prosthesis Implantation ,High rate ,High prevalence ,Performance status ,business.industry ,Incidence ,Aortic Valve Stenosis ,General Medicine ,medicine.disease ,Survival Analysis ,Prosthesis Failure ,Surgery ,Hospitalization ,Survival Rate ,Treatment Outcome ,Aortic Valve ,Austria ,Aortic valve stenosis ,Female ,Karnofsky score ,business - Abstract
AIMS: Comorbidities pose a major challenge to screening, selection and follow-up of transcatheter aortic valve implantation (TAVI) patients as well as to the procedure itself. The aim of the present study was to assess cardiac and non-cardiac readmission rates besides clinical endpoint data in the first 50 patients of a single center TAVI programme. METHODS AND RESULTS: TAVI was performed using the transfemoral CoreValve system. Procedural success rate was 94%; intraprocedural mortality was 2%. 82% of the patients remained free of a combined safety endpoint at 30 days, and 76.1% remained free of a combined efficacy endpoint at six months (modified criteria of the Valve Academic Research Consortium). At six months, among all surviving patients, 10.3% had experienced readmissions for cardiac causes, and 43.6% had experienced readmissions for non-cardiac causes. Causes of non-cardiac readmissions showed a wide distribution over various medical disciplines, reflecting the high rate of comorbidities. Beyond six months until a predefined reference date (mean follow up 9.9 months), the probability of hospitalization fell by half (1.54 vs. 0.74 hospital days per patient per month), driven by a decrease of non-cardiac readmissions. Karnofsky score before and after TAVI yielded a significant and sustained improvement of performance status, as assessed retrospectively at reference date. CONCLUSION: The findings of the present study suggest that the high prevalence of comorbidities in high-risk TAVI patients results in a high rate of non-cardiac rehospitalizations during the first 6 months of follow-up. Despite this fact, improvement of global everyday performance following TAVI as perceived by the patients seems to be substantial.
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- 2011
11. Plötzlicher Herztod 43 Monate nach fulminanter Myokarditis und zweizeitiger Myositis bei Salmonella-enteritidis-Infektion
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Johann Altenberger, Maximilian Pichler, and Matthias Hammerer
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Gynecology ,medicine.medical_specialty ,Skeletal pathology ,business.industry ,Geriatrics gerontology ,Pharmacology toxicology ,medicine ,General Medicine ,business - Abstract
ANAMNESE UND KLINISCHER BEFUND: Ein 29-jahriger, bisher gesunder Mann kam nach einem primar unkomplizierten gastroenteritischen Infekt wegen akuter Myalgien mit hochfebrilen Temperaturen zur stationaren Aufnahme. Innerhalb von 24 Stunden entwickelte sich ein lebensbedrohliches Zustandsbild mit einem katecholeminpflichtigen hamodynamischen Schockzustand und einer therapierefraktaren anhaltenden ventrikularen Tachykardie. UNTERSUCHUNGEN: Echo- und elektrokardiographische sowie laborchemische Befunde waren vereinbar mit einer fulminanten Myokarditis und einer akuten Myositis. Serologisch und bakteriologisch wurde in der Folge eine akute Infektion mit Salmonellen der Gruppe D nachgewiesen. THERAPIE UND VERLAUF: Unter konservativer supportiver Therapie kam es innerhalb von wenigen Tagen zu einer Konsolidierung des Zustandsbildes. Abgesehen von einem – histologisch gesicherten – Myositisrezidiv nach vier Wochen blieb der weitere Verlauf unkompliziert und es zeigte sich sowohl klinisch als auch echokardiographisch eine vollstandige funktionelle Remission. Dreieinhalb Jahre spater verstarb der Patient plotzlich. Histologisch fand sich eine umschriebene narbige Myokardfibrose. SCHLUSSFOLGERUNGEN: Eine fulminante Myokarditis stellt im Akutstadium eine lebenbedrohliche Erkrankung dar, die Prognose nach Ausheilung gilt aber als gut. In dem von uns dargestellten Fall sprechen viele Indizien fur einen Plotzlichen Herztod als Spatkomplikation einer fulminanten Myokarditis bakterieller Genese.
- Published
- 2008
12. Short-term pacemaker dependency after transcatheter aortic valve implantation
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Bernhard Strohmer, Christiana Schernthaner, Franz Danmayr, Matthias Hammerer, Johannes Kraus, Jens Schneider, and Uta C. Hoppe
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Male ,medicine.medical_specialty ,Pacemaker, Artificial ,030204 cardiovascular system & hematology ,Sick sinus syndrome ,Transcatheter Aortic Valve Replacement ,03 medical and health sciences ,0302 clinical medicine ,Postoperative Complications ,Risk Factors ,Internal medicine ,medicine ,Humans ,030212 general & internal medicine ,Postoperative Period ,Atrioventricular Block ,Aged ,Retrospective Studies ,Aged, 80 and over ,Bundle branch block ,business.industry ,Incidence ,Atrial fibrillation ,General Medicine ,Aortic Valve Stenosis ,Right bundle branch block ,medicine.disease ,Combined Modality Therapy ,Stenosis ,Treatment Outcome ,Aortic valve stenosis ,Austria ,Utilization Review ,Cardiology ,Female ,Electrical conduction system of the heart ,business ,Atrioventricular block - Abstract
Transcatheter aortic valve implantation (TAVI) is a less invasive technique for the treatment of severe aortic stenosis in high-risk patients. Occurrence of conduction disturbances requiring permanent pacemaker (PPM) implantation after TAVI is frequently observed.The retrospective analysis comprised 153 patients (96 women, aged from 65 to 97 years) who underwent TAVI due to high-grade aortic stenosis. The aim was to evaluate the incidence of high-grade atrioventricular (AV) block after TAVI and the percentage of ventricular pacing and pacemaker (PM)-dependency at the first follow-up 6-8 weeks after implantation.Out of the 153 patients (age 81 ± 6 years) who underwent TAVI, 144 (94 %) had a transfemoral and 9 (6 %) patients a transapical approach. A PPM was implanted in 31 (20 %) patients, 24 (16 %) were implanted with the Medtronic CoreValve® and 7 (5 %) with the Edwards Sapien® valve (p = n.s.). Complete AV block was the indication in 21 patients (68 %), second-degree AV block in 1 patient (3 %), slow atrial fibrillation in 3 patients (10 %), new left bundle branch block (LBBB) plus sustained ventricular tachycardia (VT) in 1 patient (3 %), sick sinus syndrome in 2 patients (7 %), whereas in 3 patients (10 %) a PPM was inserted for safety reasons because of new LBBB and first-grade AV block. All of the nine patients (6 %) with a preexisting bundle branch block developed total AV block after TAVI. At follow-up PM-dependency (intrinsic rhythm 30 bpm) occurred in 11/30 patients (37 %), whereas an intrinsic rhythm 50 bpm was seen in 17 patients (57 %). At nominal device programming the percentage of ventricular stimulation (VP) during the short-term observation period was 60 ± 44 % in dual-chamber devices (N = 18), and 70 ± 36 % in single-chamber PPM (N = 5).The PPM implantation rate of about 20 % after TAVI is comparable to previously published data. The need for permanent pacing is linked to the valve type and preexistence of a right bundle branch block. At short-term more than half of the patients implanted with a device were not strictly PM-dependent, but presented an underlying intrinsic rhythm, indicating that temporary AV conduction disturbances may recover over time. This might justify a more conservative approach in some patients under watchful waiting. From another point of view, ventricular pacing at a regular or sensor-modulated rate may provide rhythm stability and chronotropy during the short-term period post-TAVI.
- Published
- 2015
13. Frailty scoring in transcatheter aortic valve replacement patients
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Christiana Schernthaner, Uta C. Hoppe, Bernhard Strohmer, Matthias Hammerer, Lynne Hinterbuchner, and Erika Prinz
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Male ,medicine.medical_specialty ,Transcatheter aortic ,medicine.medical_treatment ,Frail Elderly ,Less invasive ,CINAHL ,030204 cardiovascular system & hematology ,Severity of Illness Index ,Transcatheter Aortic Valve Replacement ,03 medical and health sciences ,0302 clinical medicine ,Valve replacement ,Aortic valve replacement ,Risk Factors ,Medicine ,Humans ,In patient ,030212 general & internal medicine ,Hospital Mortality ,Cardiac Surgical Procedures ,Intensive care medicine ,Aged ,Advanced and Specialized Nursing ,Aged, 80 and over ,Heart Valve Prosthesis Implantation ,business.industry ,Treatment options ,Aortic Valve Stenosis ,medicine.disease ,Frailty assessment ,Surgery ,Survival Rate ,Medical–Surgical Nursing ,Treatment Outcome ,Female ,Cardiology and Cardiovascular Medicine ,business ,Follow-Up Studies - Abstract
Transcatheter aortic valve replacement (TAVR) is a less invasive treatment option for patients that are deemed too high a risk for surgical aortic valve replacement (SAVR). The aim of this review is to evaluate the frailty tools currently being used in patients referred for TAVR.Using a literature search involving database search engines from CINAHL, PubMed, SAGE publications and European Society of Cardiology conducted from 2010 to the present, a critical evaluation of studies dealing with frailty assessment in patients referred for TAVR/SAVR is discussed.Eight studies met the criteria using frailty assessment in TAVR/SAVR patients. In all reviewed studies the impact of frailty on clinical outcome has been proved. Different instruments for measurements of frailty were used that have not been robustly evaluated. Frailty was defined differently and results may not be comparable. All reviewed studies used different cutoffs and scales and some a composite scoring system, although validity was limited.For frailty assessment implementation of validated standardized test protocols based on well-established assessment tools, covering all domains of frailty among TAVR centers is crucial for patient selection. Secondly, validated cutoffs and scoring systems are essential.
- Published
- 2015
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