Helmut Hager

1.4k total citations
27 papers, 911 citations indexed

About

Helmut Hager is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Cardiology and Cardiovascular Medicine. According to data from OpenAlex, Helmut Hager has authored 27 papers receiving a total of 911 indexed citations (citations by other indexed papers that have themselves been cited), including 12 papers in Surgery, 11 papers in Pulmonary and Respiratory Medicine and 9 papers in Cardiology and Cardiovascular Medicine. Recurrent topics in Helmut Hager's work include Airway Management and Intubation Techniques (5 papers), Respiratory Support and Mechanisms (5 papers) and Cardiac, Anesthesia and Surgical Outcomes (5 papers). Helmut Hager is often cited by papers focused on Airway Management and Intubation Techniques (5 papers), Respiratory Support and Mechanisms (5 papers) and Cardiac, Anesthesia and Surgical Outcomes (5 papers). Helmut Hager collaborates with scholars based in Austria, Hungary and Switzerland. Helmut Hager's co-authors include Walter Klepetko, György Láng, Konrad Höetzenecker, Georg A. Roth, Shahrokh Taghavi, Thomas Schweiger, Andrea Kurz, Stefan Schwarz, Alberto Benazzo and Helmut Prosch and has published in prestigious journals such as Anesthesiology, Biosensors and Bioelectronics and Journal of Thoracic and Cardiovascular Surgery.

In The Last Decade

Helmut Hager

27 papers receiving 870 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Helmut Hager Austria 17 573 291 251 176 101 27 911
Angela Rajek Austria 20 601 1.0× 587 2.0× 184 0.7× 88 0.5× 359 3.6× 31 1.2k
H Tevaearai Switzerland 12 410 0.7× 131 0.5× 110 0.4× 131 0.7× 236 2.3× 34 641
Veerle Leunens Belgium 9 354 0.6× 290 1.0× 129 0.5× 11 0.1× 137 1.4× 18 642
Tilo Gerhardt United States 25 710 1.2× 65 0.2× 1.8k 7.0× 136 0.8× 42 0.4× 82 2.0k
Alexander R. Manara United Kingdom 11 381 0.7× 280 1.0× 69 0.3× 48 0.3× 95 0.9× 26 841
Woo Seog Sim South Korea 17 391 0.7× 35 0.1× 119 0.5× 218 1.2× 97 1.0× 68 721
Sung‐Hoon Kim South Korea 16 365 0.6× 125 0.4× 139 0.6× 136 0.8× 234 2.3× 83 788
Marc Hein Germany 15 123 0.2× 80 0.3× 64 0.3× 150 0.9× 234 2.3× 37 635
Sung Mi Hwang South Korea 17 403 0.7× 181 0.6× 82 0.3× 184 1.0× 80 0.8× 68 852
David J. Steward Canada 17 303 0.5× 172 0.6× 210 0.8× 162 0.9× 181 1.8× 51 906

Countries citing papers authored by Helmut Hager

Since Specialization
Citations

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

Fields of papers citing papers by Helmut Hager

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Helmut Hager

This figure shows the co-authorship network connecting the top 25 collaborators of Helmut Hager. A scholar is included among the top collaborators of Helmut Hager 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 Helmut Hager. Helmut Hager 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.
Schweiger, Thomas, et al.. (2020). Laryngeal Mask as the Primary Airway Device During Laryngotracheal Surgery: Data From 108 Patients. The Annals of Thoracic Surgery. 110(1). 251–257. 17 indexed citations
2.
Höetzenecker, Konrad, Alberto Benazzo, Theresa Störk, et al.. (2019). Bilateral lung transplantation on intraoperative extracorporeal membrane oxygenator: An observational study. Journal of Thoracic and Cardiovascular Surgery. 160(1). 320–327.e1. 91 indexed citations
3.
Slama, Alexis, Andreas Mitterbauer, Konrad Höetzenecker, et al.. (2017). Standard donor lung procurement with normothermic ex vivo lung perfusion: A prospective randomized clinical trial. The Journal of Heart and Lung Transplantation. 36(7). 744–753. 100 indexed citations
4.
Höetzenecker, Konrad, Stefan Schwarz, Moritz Muckenhuber, et al.. (2017). Intraoperative extracorporeal membrane oxygenation and the possibility of postoperative prolongation improve survival in bilateral lung transplantation. Journal of Thoracic and Cardiovascular Surgery. 155(5). 2193–2206.e3. 146 indexed citations
5.
Madsen, H, Hanne Marie Nellemann, Torben Riis Rasmussen, et al.. (2013). Dynamic contrast-enhanced CT in suspected lung cancer: quantitative results. British Journal of Radiology. 86(1031). 20130257–20130257. 16 indexed citations
6.
Ruetzler, Kurt, G. Grubhofer, Werner Schmid, et al.. (2011). Randomized clinical trial comparing double-lumen tube and EZ-Blocker® for single-lung ventilation. British Journal of Anaesthesia. 106(6). 896–902. 64 indexed citations
7.
Fischer, Henrik, Eva Hochbrugger, Helmut Hager, et al.. (2010). Performance of supraglottic airway devices and 12 month skill retention: A randomized controlled study with manikins. Resuscitation. 82(3). 326–331. 17 indexed citations
8.
Weber, U., Barbara Steinlechner, Helmut Hager, et al.. (2010). Effects of high-urgency ambulance transportation on pro-B-type natriuretic peptide levels in patients with heart failure. The American Journal of Emergency Medicine. 28(5). 568–576. 2 indexed citations
9.
Weber, U., Barbara Steinlechner, Helmut Hager, et al.. (2009). Emergency ambulance transport induces stress in patients with acute coronary syndrome. Emergency Medicine Journal. 26(7). 524–528. 11 indexed citations
10.
Fleck, T., Michael Fleck, Markus Müller, et al.. (2009). Extended videoscopic robotic thymectomy with the da Vinci telemanipulator for the treatment of myasthenia gravis: the Vienna experience. Interactive Cardiovascular and Thoracic Surgery. 9(5). 784–787. 32 indexed citations
11.
Hager, Helmut, Debra D. Pulley, J. Chris Eagon, et al.. (2008). A Comparison of Noninvasive Blood Pressure Measurement on the Wrist with Invasive Arterial Blood Pressure Monitoring in Patients Undergoing Bariatric Surgery. Obesity Surgery. 19(6). 717–724. 19 indexed citations
12.
Pestel, Gunther, Kimiko Fukui, Oliver Kimberger, et al.. (2008). Hemodynamic Parameters Change Earlier Than Tissue Oxygen Tension in Hemorrhage. Journal of Surgical Research. 160(2). 288–293. 14 indexed citations
13.
Barker, Renate, Thomas Lang�, Helmut Hager, et al.. (2007). The Influence of Stellate Ganglion Transcutaneous Electrical Nerve Stimulation on Signal Quality of Pulse Oximetry in Prehospital Trauma Care. Anesthesia & Analgesia. 104(5). 1150–1153. 5 indexed citations
14.
Lang�, Thomas, Helmut Hager, Renate Barker, et al.. (2007). Prehospital analgesia with acupressure at the Baihui and Hegu points in patients with radial fractures: a prospective, randomized, double-blind trial. The American Journal of Emergency Medicine. 25(8). 887–893. 48 indexed citations
15.
Pestel, Gunther, et al.. (2007). Perioperative fluid management: comparison of high, medium and low fluid volume on tissue oxygen pressure in the small bowel and colon. European Journal of Anaesthesiology. 24(11). 927–933. 20 indexed citations
16.
Pestel, Gunther, et al.. (2006). ASSESSING INTRAVASCULAR VOLUME BY DIFFERENCE IN PULSE PRESSURE IN PIGS SUBMITTED TO GRADED HEMORRHAGE. Shock. 26(4). 391–395. 14 indexed citations
17.
Hager, Helmut, et al.. (2006). Hypercapnia Improves Tissue Oxygenation in Morbidly Obese Surgical Patients. Anesthesia & Analgesia. 103(3). 677–681. 41 indexed citations
18.
Hager, Helmut. (2003). Perfusion Index-A valuable tool to assess changes in peripheral perfusion caused by sevoflurane?. Anesthesiology. 99. 15 indexed citations
19.
Hager, Helmut, et al.. (2002). Caudal Clonidine Prolongs Analgesia from Caudal S(+)-Ketamine in Children. Anesthesia & Analgesia. 94(5). 1169–1172. 59 indexed citations
20.
Athey, D., et al.. (1993). Homogeneous amperometric immunoassay for theophylline in whole blood. Biosensors and Bioelectronics. 8(9-10). 415–419. 22 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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