K. Helmke

7.7k total citations · 1 hit paper
83 papers, 4.6k citations indexed

About

K. Helmke is a scholar working on Surgery, Neurology and Pulmonary and Respiratory Medicine. According to data from OpenAlex, K. Helmke has authored 83 papers receiving a total of 4.6k indexed citations (citations by other indexed papers that have themselves been cited), including 28 papers in Surgery, 26 papers in Neurology and 15 papers in Pulmonary and Respiratory Medicine. Recurrent topics in K. Helmke's work include Traumatic Brain Injury and Neurovascular Disturbances (15 papers), Organ Transplantation Techniques and Outcomes (14 papers) and Liver Disease and Transplantation (11 papers). K. Helmke is often cited by papers focused on Traumatic Brain Injury and Neurovascular Disturbances (15 papers), Organ Transplantation Techniques and Outcomes (14 papers) and Liver Disease and Transplantation (11 papers). K. Helmke collaborates with scholars based in Germany, Switzerland and United States. K. Helmke's co-authors include H. C. Hansen, Hans-Christian Hansen, Stefan Bielack, R. Kotz, Heribert Jürgens, Beate Kempf‐Bielack, A. Zoubek, G. Ulrich Exner, Kurt Winkler and M. Salzer‐Kuntschik and has published in prestigious journals such as Journal of Clinical Oncology, Annals of Surgery and Radiology.

In The Last Decade

K. Helmke

79 papers receiving 4.5k 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.

Prognostic Factors in High-Grade Osteosarcoma of the Extremities or Trunk: An Analysis of 1,702 Patients Treated on Neoadjuvant Cooperative Osteosarcoma Study Group Protocols

2002 1.4k citations Stefan Bielack, Beate Kempf‐Bielack et al. Journal of Clinical Oncology profile →

Peers

Countries citing papers authored by K. Helmke

Since Specialization

Citations

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

Fields of papers citing papers by K. Helmke

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of K. Helmke

This figure shows the co-authorship network connecting the top 25 collaborators of K. Helmke. A scholar is included among the top collaborators of K. Helmke 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 K. Helmke. K. Helmke 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

#	Work	Indexed citations
1	Experimental Analysis of Echogenic Signals Appearing in Optic Nerve Ultrasound 2024 ·Neurocritical Care ·Hans-Christian Hansen, (unknown), Jakob Matschke, Benjamin Ondruschka, K. Helmke	2
2	Prognostic Factors in High-Grade Osteosarcoma of theExtremities or Trunk: An Analysis of 1,702 Patients Treatedon Neoadjuvant Cooperative Osteosarcoma Study GroupProtocols 2023 ·Journal of Clinical Oncology ·Stefan Bielack, Beate Kempf‐Bielack, G. Delling, G. Ulrich Exner, Silke Flege, K. Helmke, R. Kotz, M. Salzer‐Kuntschik, Matthias Werner, Winfried Winkelmann, A. Zoubek, Heribert Jürgens, Kurt Winkler	24
3	Time course of optic nerve sheath dilation: In vitro response characteristics to controlled pressure elevations 2022 ·Journal of the Neurological Sciences ·Hans-Christian Hansen, (unknown), K. Helmke	1
4	Transcapsular Arterial Neovascularization after Liver Transplantation in Pediatric Patients Indicates Transplant Failure 2011 ·Radiology ·Jochen Herrmann, (unknown), M. Burdelski, Rainer Ganschow, (unknown), Kay Uwe Petersen, Lutz Fischer, Dieter C. Bröering, Gerhard Adam, K. Helmke	3
5	Dependence of the optic nerve sheath diameter on acutely applied subarachnoidal pressure - an experimental ultrasound study 2011 ·Acta Ophthalmologica ·Hans-Christian Hansen, Wolf A. Lagrèze, (unknown), K. Helmke	115
6	Solitary skeletal osteosarcoma recurrence. Findings from the Cooperative Osteosarcoma Study Group 2010 ·Pediatric Blood & Cancer ·Markus Franke, Jendrik Hardes, K. Helmke, Gernot Jundt, Heribert Jürgens, Beate Kempf‐Bielack, Matthias Kevric, Per‐Ulf Tunn, Mathias Werner, Stefan Bielack	20
7	Second and Subsequent Recurrences of Osteosarcoma: Presentation, Treatment, and Outcomes of 249 Consecutive Cooperative Osteosarcoma Study Group Patients 2008 ·Journal of Clinical Oncology ·Stefan Bielack, Beate Kempf‐Bielack, D. Branscheid, D. Carrle, Godehard Friedel, K. Helmke, Matthias Kevric, Gernot Jundt, T. Kühne, R. Maas, Rudolf Schwarz, A. Zoubek, Heribert Jürgens	167
8	Comparative Study of Portal Vein Embolization Versus Portal Vein Ligation for Induction of Hypertrophy of the Future Liver Remnant Using a Mini-Pig Model 2008 ·Annals of Surgery ·Christian Wilms, Lars Müeller, Christian Lenk, Oliver Wittkugel, K. Helmke, G Krupski-Berdien, Xavier Rogiers, Dieter C. Bröering	59
9	Schwere akzidentelle Hypothermie mit Kreislaufstillstand und extrakorporaler Erwärmung 2006 ·Der Anaesthesist ·Stefan Maisch, (unknown), (unknown), K. Helmke, Pascal Friederich, A. E. Goetz	7
10	Diagnostic and clinical value of anti-cyclic citrullinated peptide antibodies compared with rheumatoid factor isotypes in rheumatoid arthritis 2004 ·Annals of the Rheumatic Diseases ·(unknown), Johannes Rieber, Martin Oppermann, Frauke Förger, Uwe Siebert, K. Helmke	177
11	One Hundred Thirty-Two Consecutive Pediatric Liver Transplants Without Hospital Mortality 2004 ·Annals of Surgery ·Dieter C. Bröering, Jong‐Sun Kim, (unknown), Lutz Fischer, Rainer Ganschow, (unknown), Lars Müeller, C. Hillert, Christian Wilms, Bernd Hinrichs, K. Helmke, W. Pothmann, M. Burdelski, Xavier Rogiers	78
12	Comparison of Two Transducers for Color Doppler Imaging of the Retrobulbar Vessels 2002 ·Journal of Glaucoma ·Andreas Boehm, K. Helmke, Charles C. Berry, Robert N. Weinreb	7
13	Extrahilar mesenterico–left portal shunt for portal vein thrombosis after liver transplantation 2001 ·Transplantation Proceedings ·(unknown), Dieter C. Bröering, M. Gundlach, C. Bloechle, Rainer Ganschow, K. Helmke, Jakob R. Izbicki, M. Burdelski, Xavier Rogiers	13
14	DETECTION AND MONITORING OF INTRACRANIAL PRESSURE DYSREGULATION IN LIVER FAILURE BY ULTRASOUND 2000 ·Transplantation ·K. Helmke, M. Burdelski, Hans-Christian Hansen	51
15	Intensive care management after pediatric liver transplantation: A single‐center experience 2000 ·Pediatric Transplantation ·Rainer Ganschow, (unknown), K. Helmke, (unknown), J.C. Commentz, Dieter C. Bröering, W. Pothmann, Xavier Rogiers, H. H. Hellwege, M. Burdelski	44
16	Fundamentals of transorbital sonographic evaluation of optic nerve sheath expansion under intracranial hypertension 1996 ·Pediatric Radiology ·K. Helmke, H. C. Hansen	291
17	The subarachnoid space surrounding the optic nerves. An ultrasound study of the optic nerve sheath 1996 ·Surgical and Radiologic Anatomy ·H. C. Hansen, K. Helmke	190
18	Fundamentals of transorbital sonographic evaluation of optic nerve sheath expansion under intracranial hypertension 1996 ·Pediatric Radiology ·K. Helmke, H. C. Hansen	176
19	Major pitfalls in Doppler investigations with particular reference to the cerebral vascular system 1990 ·Pediatric Radiology ·Peter Winkler, K. Helmke	22
20	Inosiplex enhances the growth of Epstein-Barr nuclear antigen-positive B-cells from patients with rheumatoid arthritis and infectious mononucleosis 1988 ·International Journal of Immunopharmacology ·H. Becker, K. Helmke	4

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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