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A. Zittermann · SciRah

Researcher profile · Semantic Scholar

A. Zittermann

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A. Zittermann — researcher profile on SciRah

h-index: 56
Works: 309
Citations: 15K

Most-cited papers

Rationale and Plan for Vitamin D Food Fortification: A Review and Guidance Paper
S. Pilz, W. März, K. Cashman, M. Kiely +31 more
2018Frontiers in Endocrinology345 citations Open access
Semantic Scholar
Vitamin D testing and treatment: a narrative review of current evidence
S. Pilz, A. Zittermann, C. Trummer, V. Theiler-Schwetz +5 more
2019Endocrine Connections243 citations Open access
Semantic Scholar
Effect of vitamin D on all-cause mortality in heart failure (EVITA): a 3-year randomized clinical trial with 4000 IU vitamin D daily
A. Zittermann, J. B. Ernst, S. Prokop, U. Fuchs +11 more
2017European Heart Journal177 citations
Semantic Scholar
The Role of Vitamin D in Fertility and during Pregnancy and Lactation: A Review of Clinical Data
S. Pilz, A. Zittermann, R. Obeid, A. Hahn +6 more
2018International Journal of Environmental Research and Public Health146 citations Open access
Semantic Scholar
Long-term outcomes after transcatheter aortic valve implantation in failed bioprosthetic valves.
S. Bleiziffer, M. Simonato, J. Webb, J. Rodés-Cabau +71 more
2020European Heart Journal145 citations Open access
Semantic Scholar
The European Registry for Patients with Mechanical Circulatory Support (EUROMACS) of the European Association for Cardio-Thoracic Surgery (EACTS): second report
T. D. de By, P. Mohacsi, B. Gahl, A. Zittermann +11 more
2018European Journal of Cardio-Thoracic Surgery133 citations Open access
Semantic Scholar
Vitamin D and Cardiovascular Disease: An Updated Narrative Review
A. Zittermann, C. Trummer, V. Theiler-Schwetz, E. Lerchbaum +2 more
2021International Journal of Molecular Sciences115 citations Open access
Semantic Scholar
Critical Appraisal of Large Vitamin D Randomized Controlled Trials
S. Pilz, C. Trummer, V. Theiler-Schwetz, M. Grübler +5 more
2022Nutrients112 citations Open access
Semantic Scholar
Vitamin D and airway infections: a European perspective
A. Zittermann, S. Pilz, H. Hoffmann, W. März
2016European Journal of Medical Research95 citations Open access
Semantic Scholar
Role of Vitamin D in Preventing and Treating Selected Extraskeletal Diseases—An Umbrella Review
Friederike Maretzke, A. Bechthold, S. Egert, J. B. Ernst +10 more
2020Nutrients91 citations Open access
Semantic Scholar
Effects of Vitamin D Supplementation on Bone Turnover Markers: A Randomized Controlled Trial
V. Schwetz, C. Trummer, M. Pandis, M. Grübler +12 more
2017Nutrients57 citations Open access
Semantic Scholar
Vitamin D supplementation and lipoprotein metabolism: A randomized controlled trial.
V. Schwetz, H. Scharnagl, C. Trummer, T. Stojaković +12 more
2018Journal of Clinical Lipidology55 citations
Semantic Scholar
Telemedicine-guided, very low-dose international normalized ratio self-control in patients with mechanical heart valve implants.
H. Koertke, A. Zittermann, O. Wagner, Songuel Secer +7 more
2015European Heart Journal50 citations
Semantic Scholar
Comparing short‐term outcome after implantation of the HeartWare® HVAD® and the Abbott® HeartMate 3®
R. Schramm, A. Zittermann, M. Morshuis, M. Schoenbrodt +6 more
2020ESC Heart Failure45 citations Open access
Semantic Scholar
The effect of vitamin D on fibroblast growth factor 23: a systematic review and meta-analysis of randomized controlled trials
A. Zittermann, H. Berthold, S. Pilz
2020European Journal of Clinical Nutrition44 citations Open access
Semantic Scholar
Vitamin D and Cardiovascular Disease: An Update
A. Zittermann, S. Pilz
2019Anticancer Research40 citations
Semantic Scholar
Effects of Vitamin D Supplementation on IGF-1 and Calcitriol: A Randomized-Controlled Trial
C. Trummer, V. Schwetz, M. Pandis, M. Grübler +12 more
2017Nutrients40 citations Open access
Semantic Scholar
Vitamin D Status, Supplementation and Cardiovascular Disease.
A. Zittermann
2018Anticancer Research37 citations
Semantic Scholar
Bivalirudin anticoagulation for left ventricular assist device implantation on an extracorporeal life support system in patients with heparin-induced thrombocytopenia antibodies.
E. Ljajikj, A. Zittermann, M. Morshuis, J. Börgermann +4 more
2017Interactive Cardiovascular and Thoracic Surgery37 citations Open access
Semantic Scholar
Protein intake and risk of urolithiasis and kidney diseases: an umbrella review of systematic reviews for the evidence-based guideline of the German Nutrition Society
T. Remer, Nicole Kalotai, A. M. Amini, Andreas Lehmann +12 more
2023European Journal of Nutrition36 citations Open access
Semantic Scholar
Systemic Thrombolysis Versus Device Exchange for Pump Thrombosis Management: A Single-Center Experience
C. Oezpeker, A. Zittermann, S. Ensminger, L. Kizner +6 more
2016ASAIO journal (1992)35 citations
Semantic Scholar
The Biphasic Effect of Vitamin D on the Musculoskeletal and Cardiovascular System
A. Zittermann
2017International Journal of Endocrinology34 citations Open access
Semantic Scholar
Transfusion of 1 and 2 units of red blood cells does not increase mortality and organ failure in patients undergoing isolated coronary artery bypass grafting.
A. Koster, A. Zittermann, J. Börgermann, C. Knabbe +3 more
2016European Journal of Cardio-Thoracic Surgery34 citations Open access
Semantic Scholar
Serum 25-hydroxyvitamin D response to vitamin D supplementation in infants: a systematic review and meta-analysis of clinical intervention trials
A. Zittermann, S. Pilz, H. Berthold
2020European Journal of Nutrition31 citations
Semantic Scholar
Graft-derived Cell-free DNA as a Noninvasive Biomarker of Cardiac Allograft Rejection: A Cohort Study on Clinical Validity and Confounding Factors
Franziska Knüttgen, J. Beck, M. Dittrich, M. Oellerich +7 more
2021Transplantation29 citations
Semantic Scholar
Circulating 25-Hydroxyvitamin D and 1,25-Dihydroxyvitamin D Concentrations and Postoperative Infections in Cardiac Surgical Patients: The CALCITOP-Study
A. Zittermann, J. Kuhn, J. B. Ernst, T. Becker +5 more
2016PLoS ONE29 citations Open access
Semantic Scholar
Role of Depression and Social Isolation at Time of Waitlisting for Survival 8 Years After Heart Transplantation
H. Spaderna, A. Zittermann, H. Reichenspurner, C. Ziegler +2 more
2017Journal of the American Heart Association : Cardiovascular and Cerebrovascular Disease28 citations Open access
Semantic Scholar
Effects of Vitamin D Supplementation on Renin and Aldosterone Concentrations in Patients with Advanced Heart Failure: The EVITA Trial
A. Zittermann, J. B. Ernst, S. Prokop, U. Fuchs +8 more
2018International Journal of Endocrinology27 citations Open access
Semantic Scholar
Vitamin D Supplementation and Hemoglobin Levels in Hypertensive Patients: A Randomized Controlled Trial
J. B. Ernst, A. Tomaschitz, M. Grübler, M. Gaksch +5 more
2016International Journal of Endocrinology25 citations Open access
Semantic Scholar
Independent Association of Circulating Vitamin D Metabolites with Anemia Risk in Patients Scheduled for Cardiac Surgery
J. B. Ernst, T. Becker, J. Kuhn, J. Gummert +1 more
2015PLoS ONE25 citations Open access
Semantic Scholar
Hypercalcemia in Pregnancy Due to CYP24A1 Mutations: Case Report and Review of the Literature
S. Pilz, V. Theiler-Schwetz, P. Płudowski, S. Zelzer +6 more
2022Nutrients24 citations Open access
Semantic Scholar
PASCAL mitral valve repair system versus MitraClip: comparison of transcatheter edge-to-edge strategies in complex primary mitral regurgitation
M. Gerçek, F. Roder, T. Rudolph, V. Fortmeier +3 more
2021Clinical Research in Cardiology24 citations Open access
Semantic Scholar
Permanent Atrial Fibrillation and 2 Year Clinical Outcomes in Patients with a Left Ventricular Assist Device Implant
C. Oezpeker, A. Zittermann, T. Pühler, S. Ensminger +2 more
2017ASAIO journal (1992)24 citations
Semantic Scholar
Measurement of Circulating 1,25-Dihydroxyvitamin D: Comparison of an Automated Method with a Liquid Chromatography Tandem Mass Spectrometry Method
A. Zittermann, J. B. Ernst, T. Becker, J. Dreier +3 more
2016International Journal of Analytical Chemistry24 citations Open access
Semantic Scholar
Tricuspid valve repair in patients with left-ventricular assist device implants and tricuspid valve regurgitation: propensity score-adjusted analysis of clinical outcome.
C. Oezpeker, A. Zittermann, L. Paluszkiewicz, M. Piran +6 more
2015Interactive Cardiovascular and Thoracic Surgery23 citations Open access
Semantic Scholar
Effects of vitamin D supplementation on FGF23: a randomized-controlled trial
C. Trummer, V. Schwetz, M. Pandis, M. Grübler +14 more
2018European Journal of Nutrition21 citations Open access
Semantic Scholar
Daytime variation in aortic valve surgery and clinical outcome: A propensity score matched analysis.
J. Gotte, A. Zittermann, M. Deutsch, R. Schramm +3 more
2020Annals of Thoracic Surgery20 citations Open access
Semantic Scholar
Effects of Vitamin D Supplementation on 24-Hour Blood Pressure in Patients with Low 25-Hydroxyvitamin D Levels: A Randomized Controlled Trial
V. Theiler-Schwetz, C. Trummer, M. Grübler, M. Keppel +6 more
2022Nutrients18 citations Open access
Semantic Scholar
Vitamin D supplementation does not prevent the testosterone decline in males with advanced heart failure: the EVITA trial
A. Zittermann, J. B. Ernst, S. Prokop, U. Fuchs +8 more
2019European Journal of Nutrition17 citations
Semantic Scholar
Left ventricular unloading during extracorporeal life support for myocardial infarction with cardiogenic shock: surgical venting versus Impella device
D. Radakovic, A. Zittermann, Alen Knezevic, A. Razumov +10 more
2021Interactive Cardiovascular and Thoracic Surgery16 citations Open access
Semantic Scholar
Associations of Parameters of the Tryptophan–Kynurenine Pathway with Cardiovascular Risk Factors in Hypertensive Patients
V. Theiler-Schwetz, C. Trummer, M. Grübler, M. Keppel +5 more
2023Nutrients13 citations Open access
Semantic Scholar
Mechanical circulatory support does not reduce advanced myocardial fibrosis in patients with end‐stage heart failure
A. Kassner, C. Oezpeker, J. Gummert, A. Zittermann +5 more
2020European Journal of Heart Failure13 citations Open access
Semantic Scholar
Changes in Von Willebrand factor profile predicts clinical outcomes in patients on mechanical circulatory support
C. Oezpeker, A. Zittermann, Daniela Baurichter, M. Morshuis +5 more
2018Journal of cardiac surgery12 citations Open access
Semantic Scholar
Direct oral anticoagulants and cardiac surgery: A descriptive study of preoperative management and postoperative outcomes.
Vanessa Fox, A. Kleikamp, M. Dittrich, A. Zittermann +4 more
2019Journal of Thoracic and Cardiovascular Surgery11 citations Open access
Semantic Scholar
High-sensitivity cardiac troponin I after coronary artery bypass grafting for post-operative decision-making
H. Omran, M. Deutsch, E. Groezinger, A. Zittermann +11 more
2022European Heart Journal10 citations Open access
Semantic Scholar
Risk-adjusted analysis of long-term outcomes after on- versus off-pump coronary artery bypass grafting.
M. Deutsch, A. Zittermann, A. Renner, R. Schramm +11 more
2021Interactive Cardiovascular and Thoracic Surgery10 citations Open access
Semantic Scholar
Vitamin D in Klinik und Praxis
A. Zittermann, S. Pilz
2017Deutsche Medizinische Wochenschrift9 citations
Semantic Scholar
Tranexamic acid and convulsive seizures after off-pump coronary artery bypass surgery: the role of renal insufficiency.
N. Hulde, A. Zittermann, M. Deutsch, V. von Dossow +2 more
2019Interactive Cardiovascular and Thoracic Surgery8 citations Open access
Semantic Scholar
Daily Supplementation with 4000 IU Vitamin D3 for Three Years Does Not Modify Cardiovascular Risk Markers in Patients with Advanced Heart Failure: The Effect of Vitamin D on Mortality in Heart Failure Trial
A. Zittermann, J. B. Ernst, S. Prokop, U. Fuchs +8 more
2018Annals of Nutrition and Metabolism8 citations
Semantic Scholar
A 3 year post‐intervention follow‐up on mortality in advanced heart failure (EVITA vitamin D supplementation trial)
A. Zittermann, J. B. Ernst, S. Prokop, U. Fuchs +4 more
2020ESC Heart Failure7 citations Open access
Semantic Scholar

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