Publications by authors named "Knut Helmke"

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Perineural Echogenic Signals in Optic Nerve Ultrasound: Where Do They Originate?
Hans-Christian Hansen, Jan-Peter Sperhake, Jakob Matschke, Benjamin Ondruschka, Knut Helmke

Neurocrit Care· December 2025

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Experimental Analysis of Echogenic Signals Appearing in Optic Nerve Ultrasound.
Hans-Christian Hansen, Jan-Peter Sperhake, Jakob Matschke, Benjamin Ondruschka, Knut Helmke

Neurocrit Care· October 2025

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Landmarks for Sonographic Optic Nerve Sheath Diameter Measurement Need Further Anatomical Clarification.
Hans-Christian Hansen, Knut Helmke

Crit Care Med· June 2025

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Prognostic Factors in High-Grade Osteosarcoma of theExtremities or Trunk: An Analysis of 1,702 Patients Treatedon Neoadjuvant Cooperative Osteosarcoma Study GroupProtocols.
Stefan S Bielack, Beate Kempf-Bielack, Günter Delling, G Ulrich Exner, Silke Flege, Knut Helmke

J Clin Oncol· September 2023

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[Clinical and sonographic work-up of headache accompanied by unilateral visual afferent and efferent deficits].
Hans-Christian Hansen, Olav Jansen, Knut Helmke

Med Klin Intensivmed Notfmed· March 2023

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Time course of optic nerve sheath dilation: In vitro response characteristics to controlled pressure elevations.
Hans-Christian Hansen, Stine Solveig Helmke, Knut Helmke

J Neurol Sci· October 2022

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Optic Nerve Sheath Viscoelastic Properties: Re-Examination of Biomechanical Behavior and Clinical Implications.
Matthew Luchette, Knut Helmke, Iscander M Maissan, Hans-Christian Hansen, Robert Jan Stolker

Neurocrit Care· August 2022

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Persistence of post-operative color Doppler abnormalities is linked to reduced graft survival in pediatric patients after liver transplantation.
Jochen Herrmann, Magdalini Tozakidou, Jasmin Busch, Uta Herden, Lutz Fischer, Knut Helmke

Pediatr Transplant· December 2019

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Impact on the hepatic flow velocity after pediatric combined liver-kidney transplantation compared to isolated pediatric liver transplantation-A matched-pair analysis.
Jessica V Hellenkemper, Enke Grabhorn, Florian Brinkert, Henning Lenhartz, Jochen Herrmann, Knut Helmke

Clin Transplant· October 2019

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Comparison of MAPIE versus MAP in patients with a poor response to preoperative chemotherapy for newly diagnosed high-grade osteosarcoma (EURAMOS-1): an open-label, international, randomised controlled trial.
Neyssa M Marina, Sigbjørn Smeland, Stefan S Bielack, Mark Bernstein, Gordana Jovic, Knut Helmke

Lancet Oncol· October 2016

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Methotrexate, Doxorubicin, and Cisplatin (MAP) Plus Maintenance Pegylated Interferon Alfa-2b Versus MAP Alone in Patients With Resectable High-Grade Osteosarcoma and Good Histologic Response to Preoperative MAP: First Results of the EURAMOS-1 Good Response Randomized Controlled Trial.
Stefan S Bielack, Sigbjørn Smeland, Jeremy S Whelan, Neyssa Marina, Gordana Jovic, Knut Helmke

J Clin Oncol· July 2015

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Combined liver-kidney transplantation for children with autosomal recessive polycystic kidney disease (ARPKD): indication and outcome.
Florian Brinkert, Anja Lehnhardt, Carmen Montoya, Knut Helmke, Hansjoerg Schaefer

Transpl Int· June 2013

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Transcapsular arterial neovascularization of liver transplants increases the risk of intraoperative bleeding during retransplantation.
Jochen Herrmann, Uta Herden, Rainer Ganschow, Kay U Petersen, Felix Schmid, Knut Helmke

Transpl Int· April 2013

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Transcapsular arterial neovascularization after liver transplantation in pediatric patients indicates transplant failure.
Jochen Herrmann, Carl M Junge, Martin Burdelski, Rainer Ganschow, Siegbert Scheibner, Knut Helmke

Radiology· November 2011

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Dependence of the optic nerve sheath diameter on acutely applied subarachnoidal pressure - an experimental ultrasound study.
Hans-Christian Hansen, Wolf Lagrèze, Oswald Krueger, Knut Helmke

Acta Ophthalmol· September 2011

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Liver transplantation in children using organs from young paediatric donors.
Uta Herden, Rainer Ganschow, Andrea Briem-Richter, Knut Helmke, Bjoern Nashan

Transpl Int· June 2011

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Solitary skeletal osteosarcoma recurrence. Findings from the Cooperative Osteosarcoma Study Group.
Markus Franke, Jendrik Hardes, Knut Helmke, Gernot Jundt, Heribert Jürgens

Pediatr Blood Cancer· May 2011

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Value of ultrasound-guided percutaneous liver biopsy in children following liver transplantation.
Marijke Sornsakrin, Knut Helmke, Andrea Briem-Richter, Rainer Ganschow

J Pediatr Gastroenterol Nutr· November 2010

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Schimke immunoosseous dysplasia: defining skeletal features.
Kshamta B Hunter, Thomas Lücke, Jürgen Spranger, Sarah F Smithson, Harika Alpay, Knut Helmke

Eur J Pediatr· July 2010

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Transplantation procedures in children with primary hyperoxaluria type 1: outcome and longitudinal growth.
Florian Brinkert, Rainer Ganschow, Knut Helmke, Egmond Harps, Lutz Fischer

Transplantation· May 2009

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Second and subsequent recurrences of osteosarcoma: presentation, treatment, and outcomes of 249 consecutive cooperative osteosarcoma study group patients.
Stefan S Bielack, Beate Kempf-Bielack, Detlev Branscheid, Dorothe Carrle, Godehard Friedel, Knut Helmke

J Clin Oncol· February 2009

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Comparative study of portal vein embolization versus portal vein ligation for induction of hypertrophy of the future liver remnant using a mini-pig model.
Christian Wilms, Lars Mueller, Christian Lenk, Oliver Wittkugel, Knut Helmke

Ann Surg· May 2008

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Clinical relevance of autoantibodies after pediatric liver transplantation.
Andrea Richter, Enke Grabhorn, Knut Helmke, Michael P Manns, Rainer Ganschow

Clin Transplant· July 2007

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Diaphragmatic hernia resulting in enterothorax following pediatric liver transplantation: a rare complication.
Cornelia Englert, Knut Helmke, Andrea Richter, Matthias Beckmann, Xavier Rogiers

Transplantation· August 2006

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Technical refinements and results in full-right full-left splitting of the deceased donor liver.
Dieter C Broering, Christian Wilms, Christian Lenk, Jan Schulte am Esch, Silke Schönherr, Knut Helmke

Ann Surg· December 2005

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