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J. Ratajczak · SciRah

Researcher profile · Semantic Scholar

J. Ratajczak

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J. Ratajczak — researcher profile on SciRah

h-index: 9
Works: 31
Citations: 195

Most-cited papers

Epidemiology and chronobiology of out-of-hospital cardiac arrest in a subpopulation of southern Poland: A two-year observation.
Stanisław Szczerbiński, J. Ratajczak, Piotr Lach, Jakub Rzeszuto +5 more
2020Cardiology Journal25 citations Open access
Semantic Scholar
Impact of mild therapeutic hypothermia on bioavailability of ticagrelor in patients with acute myocardial infarction after out-of-hospital cardiac arrest.
Julia M. Umińska, J. Ratajczak, K. Buszko, Przemysław Sobczak +6 more
2013Cardiology Journal22 citations Open access
Semantic Scholar
Comparison of temperature measurements in esophagus and urinary bladder in comatose patients after cardiac arrest undergoing mild therapeutic hypothermia.
Julia M. Umińska, K. Buszko, J. Ratajczak, P. Łach +6 more
2013Cardiology Journal14 citations Open access
Semantic Scholar
Observational analysis of out-of-hospital Cardiac Arrest occurrence and temporal variability patterns in subpopulation of southern Poland from 2006 to 2018: OSCAR-POL registry
Stanisław Szczerbiński, J. Ratajczak, Małgorzata Jasiewicz, A. Kubica
2021Cardiology Journal11 citations Open access
Semantic Scholar
The occurrence of cardiovascular risk factors and functioning in chronic illness in the Polish population of EUROASPIRE V
A. Kubica, Łukasz Pietrzykowski, P. Michalski, M. Kasprzak +6 more
2022Cardiology Journal10 citations Open access
Semantic Scholar
Atmospheric conditions and the occurrence of out-of-hospital cardiac arrest in Poland — preliminary analysis of poorly understood phenomena
J. Ratajczak, P. Łach, Stanisław Szczerbiński, Przemysław Paciorek +4 more
2018Medical Research Journal10 citations Open access
Semantic Scholar
Long-term outcome of rotational atherectomy according to burr-to-artery ratio and changes in coronary artery blood flow: Observational analysis
A. Nowak, J. Ratajczak, M. Kasprzak, A. Sukiennik +7 more
2021Cardiology Journal9 citations Open access
Semantic Scholar
Safety and Efficacy of Different Antithrombotic Strategies after Transcatheter Aortic Valve Implantation: A Network Meta-Analysis
E. Navarese, L. Grisafi, E. Spinoni, M. Mennuni +6 more
2021Thrombosis and Haemostasis9 citations
Semantic Scholar
Transcatheter aortic valve replacement with Lotus and Sapien 3 prosthetic valves: a systematic review and meta-analysis
Mirosław Gozdek, J. Ratajczak, Adam Arndt, K. Zieliński +16 more
2020Journal of Thoracic Disease9 citations Open access
Semantic Scholar
Mild therapeutic hypothermia after out-of-hospital cardiac arrest: What does really matter?
J. Ratajczak, P. Łach, Julia M. Umińska, Krzysztof Pstrągowski +4 more
2013Cardiology Journal9 citations Open access
Semantic Scholar
Can We Identify Patients in Danger of Complications in Retrograde Intrarenal Surgery?—A Retrospective Risk Factors Analysis
J. Ratajczak, Taras Hladun, Bartosz Krenz, Krzysztof Bromber +2 more
2022International Journal of Environmental Research and Public Health8 citations Open access
Semantic Scholar
The impact of mild therapeutic hypothermia on platelet reactivity in comatose survivors of cardiac arrest with acute myocardial infarction treated with ticagrelor
Julia M. Umińska, J. Ratajczak, Krzysztof Pstrągowski, K. Buszko +5 more
2022Cardiology Journal7 citations Open access
Semantic Scholar
Gender-Related Effectiveness of Personalized Post-COVID-19 Rehabilitation
A. Rzepka-Cholasińska, J. Ratajczak, P. Michalski, M. Kasprzak +6 more
2024Journal of Clinical Medicine6 citations Open access
Semantic Scholar
Lipoprotein (a) and the Occurrence of Lipid Disorders and Other Cardiovascular Risk Factors in Patients without Diagnosed Cardiovascular Disease
J. Ratajczak, A. Kubica, Łukasz Pietrzykowski, P. Michalski +5 more
2024Journal of Clinical Medicine6 citations Open access
Semantic Scholar
Influence of QRS duration and axis on response to cardiac resynchronization therapy in chronic heart failure with reduced left ventricular ejection fraction: A single center study including patients with left bundle branch block.
T. Fabiszak, P. Łach, J. Ratajczak, M. Koziński +2 more
2013Cardiology Journal6 citations Open access
Semantic Scholar
Lipid profile and the variables associated with control of selected lipid parameters in patients of a large multi-specialist hospital in Poland - the Jurasz Lipid Study (JLS).
M. Ziółkowski, J. Ratajczak, Karolina Obońska, Piotr Adamski +20 more
2025Lipids in Health and Disease5 citations Open access
Semantic Scholar
The Impact of Anxiety and Depression Symptoms on Cardiovascular Risk Factor Control in Patients Without a History of Atherosclerotic Cardiovascular Disease
Łukasz Pietrzykowski, A. Kosobucka-Ozdoba, P. Michalski, M. Kasprzak +5 more
2024Vascular Health and Risk Management5 citations Open access
Semantic Scholar
Determinants of Lipid Parameters in Patients without Diagnosed Cardiovascular Disease—Results of the Polish Arm of the EUROASPIRE V Survey
J. Ratajczak, A. Kubica, P. Michalski, Łukasz Pietrzykowski +7 more
2023Journal of Clinical Medicine5 citations Open access
Semantic Scholar
Five-Year Comparative Efficacy of Everolimus-Eluting vs. Resolute Zotarolimus-Eluting Stents in Patients with Acute Coronary Syndrome Undergoing Percutaneous Coronary Intervention
Endrin Koni, W. Wańha, J. Ratajczak, Wentao Bao +8 more
2021Journal of Clinical Medicine5 citations Open access
Semantic Scholar
Achieving Cardiovascular Risk Management Goals and Patient Quality of Life
A. Kosobucka-Ozdoba, Łukasz Pietrzykowski, P. Michalski, J. Ratajczak +4 more
2024Journal of Cardiovascular Development and Disease3 citations Open access
Semantic Scholar
Can We Identify Patients in Danger of Delayed Treatment? Management of COVID-19 Pandemic Backlog in Urology Care in Poland
J. Ratajczak, A. Gawrońska, M. Fischer, Taras Hladun +1 more
2022International Journal of Environmental Research and Public Health3 citations Open access
Semantic Scholar
Improvement of the quality of cardiopulmonary resuscitation performed with Real CPR Help® device among medical students and medical workers
Malwina Bruska, Zuzanna Szankin, J. Ratajczak, T. Fabiszak
2021Medical Research Journal3 citations Open access
Semantic Scholar
Occurrence and Temporal Variability of Out-of-Hospital Cardiac Arrest during COVID-19 Pandemic in Comparison to the Pre-Pandemic Period in Poland—Observational Analysis of OSCAR-POL Registry
J. Ratajczak, Stanisław Szczerbiński, A. Kubica
2022Journal of Clinical Medicine2 citations Open access
Semantic Scholar
Extended dual antithrombotic therapy in patients with chronic coronary syndrome — which agent should be added to aspirin?
J. Kubica, Piotr Adamski, K. Buszko, P. Buszman +37 more
2025Cardiology Journal1 citations Open access
Semantic Scholar
Observational, retrospective study evaluating the temporal variability of out-of-hospital cardiac arrests (OHCA) in the district of Bydgoszcz in a 24-month period
Przemysław Paciorek, Karolina Obońska, Wojciech Skrzyński, J. Ratajczak
2021Medical Research Journal1 citations Open access
Semantic Scholar
Successful reduction of severe mitral regurgitation after implantation of four MitraClip devices
J. Ratajczak, A. Sukiennik, S. Sielski, M. Woźnicki +2 more
20161 citations Open access
Semantic Scholar
Relationship of the occurrence of self-reported anxiety and depression symptoms and achievement of cardiovascular risk factors control
L. Pietrzykowski, P. Michalski, A. Kosobucka-Ozdoba, J. Ratajczak +3 more
2023European Journal of Cardiovascular Nursing0 citations
Semantic Scholar
RRU_A_330765 745..748
Taras Hladun, J. Ratajczak, M. Salagierski
20210 citations
Semantic Scholar
Cost-effectiveness of levosimendan in patients with exacerbation of chronic heart failure — a single-center perspective
Michał Siedlaczek, Krzysztof Pstrągowski, J. Ratajczak, Małgorzata Jasiewicz +3 more
2021Medical Research Journal0 citations Open access
Semantic Scholar
Contemporary use of ticagrelor in Polish medical centres as a reflection of antiplatelet treatment guidelines adherence
Przemysław Paciorek, J. Ratajczak
20190 citations
Semantic Scholar
Treatment of severe mitral regurgitation with MitraClip system — a single-centre study
J. Ratajczak, E. Jaworska, M. Tomczak, Emilia Kolasińska +4 more
20160 citations Open access
Semantic Scholar

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J. Kubica×12
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A. Kubica×11
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P. Michalski×7
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M. Kasprzak×7
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Julia M. Umińska×6

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Łukasz Pietrzykowski×6

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A. Kosobucka-Ozdoba×6

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