George Vretzakis

1.2k total citations
49 papers, 778 citations indexed

About

George Vretzakis is a scholar working on Surgery, Cardiology and Cardiovascular Medicine and Pulmonary and Respiratory Medicine. According to data from OpenAlex, George Vretzakis has authored 49 papers receiving a total of 778 indexed citations (citations by other indexed papers that have themselves been cited), including 32 papers in Surgery, 16 papers in Cardiology and Cardiovascular Medicine and 15 papers in Pulmonary and Respiratory Medicine. Recurrent topics in George Vretzakis's work include Hemodynamic Monitoring and Therapy (12 papers), Anesthesia and Pain Management (10 papers) and Cardiac, Anesthesia and Surgical Outcomes (10 papers). George Vretzakis is often cited by papers focused on Hemodynamic Monitoring and Therapy (12 papers), Anesthesia and Pain Management (10 papers) and Cardiac, Anesthesia and Surgical Outcomes (10 papers). George Vretzakis collaborates with scholars based in Greece, United States and Switzerland. George Vretzakis's co-authors include Athanasios Giannoukas, Μενέλαος Καρανικόλας, Christos Dragoumanis, Metaxia Bareka, Stylianos Koutsias, Konstantinos Stamoulis, Vasilios Papaioannou, Georgia Stamatiou, Paul Zarogoulidis and George Α. Antoniou and has published in prestigious journals such as Anesthesia & Analgesia, Intensive Care Medicine and Journal of Vascular Surgery.

In The Last Decade

George Vretzakis

46 papers receiving 749 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
George Vretzakis Greece 17 439 292 252 129 123 49 778
Gereon Schälte Germany 18 281 0.6× 324 1.1× 270 1.1× 136 1.1× 147 1.2× 62 869
B. Schorn Germany 14 406 0.9× 277 0.9× 288 1.1× 140 1.1× 85 0.7× 40 727
Catherine Grebenik United Kingdom 12 335 0.8× 344 1.2× 210 0.8× 117 0.9× 143 1.2× 23 751
Basem Abdelmalak United States 19 680 1.5× 428 1.5× 365 1.4× 115 0.9× 300 2.4× 62 1.2k
Andrea Saporito Switzerland 16 525 1.2× 167 0.6× 158 0.6× 87 0.7× 109 0.9× 73 767
Dae‐Kee Choi South Korea 17 427 1.0× 331 1.1× 137 0.5× 170 1.3× 115 0.9× 46 978
Robert L. Lennon United States 16 667 1.5× 374 1.3× 210 0.8× 141 1.1× 266 2.2× 47 1.1k
Won‐Jung Shin South Korea 16 324 0.7× 194 0.7× 115 0.5× 68 0.5× 87 0.7× 60 652
Fiona E. Ralley Canada 17 380 0.9× 270 0.9× 110 0.4× 247 1.9× 143 1.2× 42 914
Youn Joung Cho South Korea 15 273 0.6× 260 0.9× 133 0.5× 103 0.8× 93 0.8× 69 683

Countries citing papers authored by George Vretzakis

Since Specialization
Citations

This map shows the geographic impact of George Vretzakis'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 George Vretzakis with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites George Vretzakis more than expected).

Fields of papers citing papers by George Vretzakis

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by George Vretzakis. 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 George Vretzakis. The network helps show where George Vretzakis may publish in the future.

Co-authorship network of co-authors of George Vretzakis

This figure shows the co-authorship network connecting the top 25 collaborators of George Vretzakis. A scholar is included among the top collaborators of George Vretzakis 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 George Vretzakis. George Vretzakis is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Georgopoulou, Stavroula, et al.. (2017). Spinal versus general anesthesia for transabdominal preperitoneal (TAPP) repair of inguinal hernia: Interim analysis of a controlled randomized trial. The American Journal of Surgery. 214(2). 239–245. 12 indexed citations
2.
Bareka, Metaxia, Michael Hantes, Eleni Αrnaoutoglou, & George Vretzakis. (2017). Superior perioperative analgesia with combined femoral–obturator–sciatic nerve block in comparison with posterior lumbar plexus and sciatic nerve block for ACL reconstructive surgery. Knee Surgery Sports Traumatology Arthroscopy. 26(2). 478–484. 13 indexed citations
3.
Καρανικόλας, Μενέλαος, et al.. (2017). Pregabalin Effect on Acute and Chronic Pain after Cardiac Surgery. Anesthesiology Research and Practice. 2017. 1–7. 11 indexed citations
4.
Papadopoulos, Dimitrios, et al.. (2016). Regional cerebral blood flow and cellular environment in subarachnoid hemorrhage: A thermal doppler flowmetry and microdialysis study. Neurologia i Neurochirurgia Polska. 51(1). 66–71. 4 indexed citations
5.
Cheva, Angeliki, Paul Zarogoulidis, Κonstantinos Porpodis, et al.. (2014). Epithelial-myoepithelial carcinoma of the trachea-a rare entity case report.. PubMed. 6 Suppl 1. S194–9. 16 indexed citations
6.
Tagarakis, Georgios, et al.. (2012). Why are thoracic operations postponed?. Journal of Cardiothoracic Surgery. 7(1). 31–31. 2 indexed citations
7.
Vretzakis, George, et al.. (2011). Management of Intraoperative Fluid Balance and Blood Conservation Techniques in Adult Cardiac Surgery. The Heart Surgery Forum. 14(1). 28–28. 8 indexed citations
8.
Vretzakis, George, Konstantinos Stamoulis, Metaxia Bareka, et al.. (2010). Intra-operative intravenous fluid restriction reduces perioperative red blood cell transfusion in elective cardiac surgery, especially in transfusion-prone patients: a prospective, randomized controlled trial. Journal of Cardiothoracic Surgery. 5(1). 7–7. 34 indexed citations
9.
Georgopoulou, Stavroula, et al.. (2010). The feasibility of laparoscopic general surgery under regional anaesthesia. 1 indexed citations
10.
Vretzakis, George, et al.. (2010). Thoracic Epidural Analgesia With Levobupivacaine for 6 Postoperative Days Attenuates Sympathetic Activation After Thoracic Surgery. Journal of Cardiothoracic and Vascular Anesthesia. 25(5). 817–823. 11 indexed citations
11.
Karathanos, Christos, et al.. (2010). PS86. Hybrid Procedures for the One-stage Treatment of Multi-focal Ipsilateral Internal Carotid and Proximal Common Carotid/Innominate Artery Lesions. Journal of Vascular Surgery. 51(6). 42S–42S. 1 indexed citations
12.
Vretzakis, George, et al.. (2008). Endobrochial Blockade Through a Tracheostomy Tube for Lung Isolation. Anesthesia & Analgesia. 107(5). 1644–1645. 7 indexed citations
13.
Vretzakis, George, et al.. (2007). The effects of propofol or sevoflurane on free radical production after tourniquet induced ischaemia-reperfusion injury during knee arthroplasty.. PubMed. 58(1). 3–6. 24 indexed citations
14.
Mavroforou, Anna, Georgia Stamatiou, Stylianos Koutsias, et al.. (2007). Malpractice issues in modern anaesthesiology. European Journal of Anaesthesiology. 24(11). 903–911. 2 indexed citations
15.
Pneumatikos, Ioannis, Dimitrios Konstantonis, Vasiliki Theodorou, et al.. (2006). Prevention of nosocomial maxillary sinusitis in the ICU: the effects of topically applied α-adrenergic agonists and corticosteroids. Intensive Care Medicine. 32(4). 532–537. 20 indexed citations
16.
Vretzakis, George, et al.. (2005). Influence of bispectral index monitoring on decision making during cardiac anesthesia. Journal of Clinical Anesthesia. 17(7). 509–516. 16 indexed citations
17.
Vretzakis, George, et al.. (2005). Inaccuracy of BIS Values Produced by the Cardiopulmonary Bypass Machine During the Operative Repair of an Aortic Dissection. Journal of Cardiothoracic and Vascular Anesthesia. 20(1). 68–70. 3 indexed citations
18.
Vretzakis, George, D. Papadimitriou, B. Papaziogas, et al.. (2003). ‘On-Line’ Alterations of Contralateral Jugular Blood Gas Profile during Carotid Clamping. European Surgical Research. 35(4). 377–382. 5 indexed citations
19.
Vretzakis, George, et al.. (2000). Continuous Monitoring of Arterial Blood Gases and pH during Intraoperative Rapid Blood Administration Using a Paratrend Sensor. Vox Sanguinis. 78(3). 158–163. 2 indexed citations
20.
Vretzakis, George, et al.. (2000). Continuous Monitoring of Arterial Blood Gases and pH during Intraoperative Rapid Blood Administration Using a Paratrend Sensor. Vox Sanguinis. 78(3). 158–163. 2 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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