Igor D. Gregorič

10.4k total citations · 2 hit papers
352 papers, 6.9k citations indexed

About

Igor D. Gregorič is a scholar working on Surgery, Biomedical Engineering and Cardiology and Cardiovascular Medicine. According to data from OpenAlex, Igor D. Gregorič has authored 352 papers receiving a total of 6.9k indexed citations (citations by other indexed papers that have themselves been cited), including 250 papers in Surgery, 229 papers in Biomedical Engineering and 144 papers in Cardiology and Cardiovascular Medicine. Recurrent topics in Igor D. Gregorič's work include Mechanical Circulatory Support Devices (227 papers), Cardiac Structural Anomalies and Repair (191 papers) and Cardiac Arrest and Resuscitation (79 papers). Igor D. Gregorič is often cited by papers focused on Mechanical Circulatory Support Devices (227 papers), Cardiac Structural Anomalies and Repair (191 papers) and Cardiac Arrest and Resuscitation (79 papers). Igor D. Gregorič collaborates with scholars based in United States, Germany and Slovenia. Igor D. Gregorič's co-authors include O.H. Frazier, Biswajit Kar, Timothy J. Myers, Pranav Loyalka, Reynolds M. Delgado, O.H. Frazier, Rajko Radovancevic, William E. Cohn, Branislav Radovančević and George J. Reul and has published in prestigious journals such as New England Journal of Medicine, Circulation and SHILAP Revista de lepidopterología.

In The Last Decade

Igor D. Gregorič

332 papers receiving 6.7k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Intrapericardial Left Ventricular Assist Device for Advanced Heart Failure

2017 488 citations Igor D. Gregorič et al. profile →
Use of an Intrapericardial, Continuous-Flow, Centrifugal Pump in Patients Awaiting Heart Transplantation

2012 456 citations Igor D. Gregorič, Pranav Loyalka et al. profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Igor D. Gregorič United States	40	5.5k	5.1k	2.5k	2.3k	827	352	6.9k
Michael A. Acker United States	46	5.7k 1.1×	4.6k 0.9×	2.1k 0.8×	4.0k 1.7×	605 0.7×	217	8.0k
Andrew Boyle United States	31	5.7k 1.0×	6.2k 1.2×	3.2k 1.3×	2.2k 0.9×	625 0.8×	85	7.2k
Lyle D. Joyce United States	42	4.3k 0.8×	3.5k 0.7×	1.6k 0.6×	2.8k 1.2×	739 0.9×	180	5.9k
Çhristof Schmid Germany	42	3.1k 0.6×	3.2k 0.6×	1.8k 0.7×	1.8k 0.8×	1.3k 1.5×	260	5.8k
Matthias Loebe United States	43	3.7k 0.7×	3.0k 0.6×	1.2k 0.5×	1.9k 0.8×	854 1.0×	270	5.7k
Jennifer Cowger United States	36	4.5k 0.8×	4.8k 0.9×	2.4k 1.0×	1.9k 0.8×	284 0.3×	214	5.9k
O.H. Frazier United States	41	4.5k 0.8×	3.1k 0.6×	1.3k 0.5×	2.6k 1.1×	839 1.0×	241	6.6k
Nader Moazami United States	47	6.3k 1.2×	5.6k 1.1×	2.8k 1.1×	3.9k 1.7×	991 1.2×	273	9.6k
Federico Pappalardo Italy	41	3.1k 0.6×	3.6k 0.7×	2.3k 0.9×	2.3k 1.0×	920 1.1×	243	5.9k
Emma J. Birks United States	44	4.4k 0.8×	4.0k 0.8×	1.7k 0.7×	3.0k 1.3×	855 1.0×	168	6.7k

Countries citing papers authored by Igor D. Gregorič

Since Specialization

Citations

This map shows the geographic impact of Igor D. Gregorič's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Igor D. Gregorič with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Igor D. Gregorič more than expected).

Fields of papers citing papers by Igor D. Gregorič

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Igor D. Gregorič. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Igor D. Gregorič. The network helps show where Igor D. Gregorič may publish in the future.

Co-authorship network of co-authors of Igor D. Gregorič

This figure shows the co-authorship network connecting the top 25 collaborators of Igor D. Gregorič. A scholar is included among the top collaborators of Igor D. Gregorič based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Igor D. Gregorič. Igor D. Gregorič is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Miller, Alexandra, et al.. (2025). Comparison of Short versus Extended Valganciclovir Prophylaxis in Donor‐Positive Recipient‐Negative Mismatched Heart Transplant Recipients: An Observational Study. Clinical Transplantation. 39(7). e70223–e70223.

Monlezun, Dominique, R. Patel, Dan Halperin, et al.. (2023). Artificial intelligence-augmented analysis of contemporary procedural, mortality, and cost trends in carcinoid heart disease in a large national cohort with a focus on the “forgotten pulmonic valve”. Frontiers in Cardiovascular Medicine. 9. 1071138–1071138. 2 indexed citations

Podlesnikar, Tomaž, et al.. (2023). Veno-arterial extracorporeal membrane oxygenation for post-infarction ventricular septal defect in a low-volume center. Journal of ExtraCorporeal Technology. 55(3). 144–146.

Weeks, Phillip, et al.. (2023). Comparison of survival by vasoactive-inotropic score in patients receiving veno-arterial extracorporeal life support. The International Journal of Artificial Organs. 46(10-11). 592–596. 1 indexed citations

Patnaik, Soumya, Sriram Nathan, Biswajit Kar, Igor D. Gregorič, & Yi‐Ping Li. (2023). The Role of Extracellular Heat Shock Proteins in Cardiovascular Diseases. Biomedicines. 11(6). 1557–1557. 7 indexed citations

Walker, Peter A., Biswajit Kar, Igor D. Gregorič, et al.. (2021). Extracorporeal Membrane Oxygenation Rescue for Severe Aspiration Pneumonitis in Two Patients after Roux-en-y Gastric Bypass Procedure. Journal of ExtraCorporeal Technology. 53(3). 199–203. 1 indexed citations

Patel, Manish Kumar, et al.. (2021). Insertion of Impella 5.5 via the Axillary Artery Graft Under Fluoroscopic Guidance. Operative Techniques in Thoracic and Cardiovascular Surgery. 26(3). 462–474. 13 indexed citations

Akkanti, Bindu, Manish Kumar Patel, Mehmet H. Akay, et al.. (2020). Tracheostomy while on Extracorporeal Membrane Oxygenation: A Comparison of Percutaneous and Open Procedures. Journal of ExtraCorporeal Technology. 52(4). 266–271. 5 indexed citations

Mubashir, Talha, Julius Balogh, Rabail Chaudhry, et al.. (2020). Transcatheter and Surgical Aortic Valve Replacement Outcomes for Patients with Chronic Heart Failure. Journal of Cardiothoracic and Vascular Anesthesia. 35(3). 888–895. 1 indexed citations

10.

Mihalj, Maks, Thierry Carrel, Igor D. Gregorič, et al.. (2020). Telemedicine for preoperative assessment during a COVID-19 pandemic: Recommendations for clinical care. Best Practice & Research Clinical Anaesthesiology. 34(2). 345–351. 56 indexed citations

11.

Weeks, Phillip, Elaine Chow, Athena L. Huang, et al.. (2019). Implementation of pharmacist‐managed anticoagulation in patients with continuous flow left ventricular assist devices. JACCP JOURNAL OF THE AMERICAN COLLEGE OF CLINICAL PHARMACY. 2(6). 623–627. 1 indexed citations

12.

Weeks, Phillip, Indranee Rajapreyar, Sriram Nathan, et al.. (2018). Bivalirudin for left ventricular assist device thrombosis. Journal of Thrombosis and Thrombolysis. 46(4). 496–501. 6 indexed citations

13.

Schechter, Michael S., Dinu Valentin Balanescu, Teodora Donisan, et al.. (2018). An update on the management and outcomes of cancer patients with severe aortic stenosis. Catheterization and Cardiovascular Interventions. 94(3). 438–445. 22 indexed citations

14.

Wahed, Amer, et al.. (2017). Can Tranexamic Acid Reduce Blood Loss during Major Cardiac Surgery? A Pilot Study.. PubMed. 47(5). 600–603. 1 indexed citations

15.

Akkanti, Bindu, Keshava Rajagopal, Rahat Hussain, et al.. (2017). Low-Flow Extracorporeal Carbon Dioxide Removal Using the Hemolung Respiratory Dialysis System^® to Facilitate Lung-Protective Mechanical Ventilation in Acute Respiratory Distress Syndrome. Journal of ExtraCorporeal Technology. 49(2). 112–114. 10 indexed citations

16.

Ottaviani, Giulia, Ana María Segura, Indranee Rajapreyar, et al.. (2016). Left ventricular noncompaction cardiomyopathy in end-stage heart failure patients undergoing orthotopic heart transplantation. Cardiovascular Pathology. 25(4). 293–299. 15 indexed citations

17.

Loyalka, Pranav, Cihan Çevik, Sriram Nathan, et al.. (2012). Percutaneous stenting to treat pulmonary vein stenosis after single-lung transplantation.. Europe PMC (PubMed Central). 6 indexed citations

18.

Krajcer, Zvonimir & Igor D. Gregorič. (2010). Totally percutaneous aortic aneurysm repair: methods and outcomes using the fully integrated IntuiTrak endovascular system.. PubMed. 51(4). 493–501. 14 indexed citations

19.

Vrtovec, Bojan, Rajko Radovancevic, Reynolds M. Delgado, et al.. (2009). Significance of Anaemia in Patients with Advanced Heart Failure Receiving Long-Term Mechanical Circulatory Support. European Journal of Heart Failure. 11(10). 1000–1004. 30 indexed citations

20.

Jacobs, Michael J., Igor D. Gregorič, & George J. Reul. (1992). Capillary microscopy in patients with vasospastic and arterial occlusive diseases.. Texas Heart Institute Journal. 19(2). 123–9. 3 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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