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Andreas Calatzis: Revisiting a Widely Cited Study on Preoperative Screening for Primary Hemostasis Disorders
Oct 31, 2026, 19:40

Andreas Calatzis: Revisiting a Widely Cited Study on Preoperative Screening for Primary Hemostasis Disorders

Andreas Calatzis, Managing Director of Eonis GmbH and Dynabyte GmbH, shared a post on LinkedIn:

“Happy weekend!

I’m pleased to share our new Perspective article in Frontiers in Medicine, coauthored with Michael Spannagl and Georg Wittmann.

We revisited a widely cited study on preoperative screening for primary hemostasis disorders, a study referenced in guidelines, in many reviews, and even prominently in the instructions for use of a popular platelet function analyzer.

Some weekend reading, if you would like to take a closer look:

  • The original 2004 study
  • Our Perspective
  • A concise introduction to incorporation bias

I’m curious to hear your perspective on our ‘Perspective'”

Title 1: A Practical Concept for Preoperative Identification of Patients with Impaired Primary Hemostasis

Authors: Juergen Koscielny, Sabine Ziemer, Hartmut Radtke, Michael Schmutzler, Axel Pruss, Pranav Sinha, Abdulgabar Salama, Holger Kiesewetter, Reinhard Latza

Read the Full Article on Clinical and Applied Thrombosis/Hemostasis

Andreas Calatzis

Title 2: Circular validation in diagnostic research: re-examination of a widely cited study on primary hemostasis screening

Authors: Andreas Calatzis, Michael Spannagl, Georg Wittmann

Read the Full Article on Frontiers in Medicine

Andreas Calatzis: Revisiting a Widely Cited Study on Preoperative Screening for Primary Hemostasis Disorders

Title 3: Incorporation bias in studies of diagnostic tests: how to avoid being biased about bias

Authors: Andrew Worster, Christopher R Carpenter

Read the Full Article on Canadian Journal of Emergency Medicine

Andreas Calatzis: Revisiting a Widely Cited Study on Preoperative Screening for Primary Hemostasis Disorders

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