Hamostaseologie 2025; 45(03): 243-253
DOI: 10.1055/a-2404-0216
Review Article

The Diagnostic Assessment of Platelet Function Defects - Part 2: Update on Platelet Disorders

Karina Althaus
1   Medical Faculty of Tübingen, Institute for Clinical and Experimental Transfusion Medicine, Tübingen, Germany
2   Center for Clinical Transfusion Medicine, University Hospital of Tübingen, Tübingen, Germany
,
Gero Hoepner
2   Center for Clinical Transfusion Medicine, University Hospital of Tübingen, Tübingen, Germany
3   Department of Anaesthesiology and Intensive Care, University Hospital Tübingen, Tübingen, Germany
,
Barbara Zieger
4   Department of Pediatrics and Adolescent Medicine, University Medical Center Freiburg, Freiburg, Germany
,
Florian Prüller
5   Klinisches Institut für Medizinische und Chemische Labordiagnostik, Medizinische Universität Graz, Graz, Austria
,
Anna Pavlova
6   Institute of Experimental Haematology and Transfusion Medicine (IHT), University Hospital Bonn, Bonn, Germany
,
Doris Boeckelmann
4   Department of Pediatrics and Adolescent Medicine, University Medical Center Freiburg, Freiburg, Germany
,
Ingvild Birschmann
7   Herz- und Diabeteszentrum Nordrhein-Westfalen, Universitätsklinik der Ruhr-Universität Bochum, Institut für Laboratoriums- und Transfusionsmedizin, Bochum, Germany
,
Jens Müller
6   Institute of Experimental Haematology and Transfusion Medicine (IHT), University Hospital Bonn, Bonn, Germany
,
Heiko Rühl
6   Institute of Experimental Haematology and Transfusion Medicine (IHT), University Hospital Bonn, Bonn, Germany
,
Ulrich Sachs
8   Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany
,
Beate Kehrel
9   Department of Anaesthesiology and Intensive Care, Experimental and Clinical Haemostasis, University-Hospital Munster, Münster, Germany
,
Werner Streif
10   Kinder- und Jugendheilkunde, Innsbruck Medical University, Innsbruck, Austria
,
Peter Bugert
11   Medical Faculty Mannheim, Institute of Transfusion Medicine and Immunology, Heidelberg University, Mannheim, Germany
,
Carlo Zaninetti
12   Institute of Immunology and Transfusion Medicine, Universitätsmedizin Greifswald, Greifswald, Germany
,
Nina Cooper
8   Institute for Clinical Immunology and Transfusion Medicine, Justus Liebig University, Giessen, Germany
,
Harald Schulze
13   Institute of Experimental Biomedicine, Universitätsklinikum Würzburg, Würzburg, Germany
,
Ralf Knöfler
14   Department of Paediatric Haemostaseology, Dresden University Hospital, Dresden, Germany
,
Tamam Bakchoul
1   Medical Faculty of Tübingen, Institute for Clinical and Experimental Transfusion Medicine, Tübingen, Germany
2   Center for Clinical Transfusion Medicine, University Hospital of Tübingen, Tübingen, Germany
,
Kerstin Jurk
15   Center for Thrombosis and Hemostasis, University Medical Center Mainz, Mainz, Germany
› Author Affiliations
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Abstract

Congenital platelet disorders are rare and targeted treatment is usually not possible. Inherited platelet function disorders (iPFDs) can affect surface receptors and multiple platelet responses such as defects of platelet granules, signal transduction, and procoagulant activity. If iPFDs are also associated with a reduced platelet count (thrombocytopenia), it is not uncommon to be misdiagnosed as immune thrombocytopenia. Because the bleeding tendency of the different platelet disorders is variable, a correct diagnosis of the platelet defect based on phenotyping, function analysis, and genotyping is essential, especially in the perioperative setting. In the case of a platelet receptor deficiency, such as Bernard–Soulier syndrome or Glanzmann thrombasthenia, not only the bleeding tendency but also the risk of isoimmunization after platelet transfusions or pregnancy has to be considered. Platelet granule disorders are commonly associated with either intrinsically quantitative or qualitative granule defects due to impaired granulopoiesis, or granule release defects, which can also affect additional signaling pathways. Functional platelet defects require expertise in the clinical bleeding tendency in terms of the disorder when using antiplatelet agents or other medications that affect platelet function. Platelet defects associated with hematological-oncological diseases require comprehensive information about the patient including the clinical implication of the genetic testing. This review focuses on genetics, clinical presentation, and laboratory platelet function analysis of iPFDs with or without reduced platelet number. As platelet defects affecting the cytoskeleton usually show thrombocytopenia, but less impaired or normal platelet functional responses, they are not specifically addressed.

Data Availability

Data generated from this study are available from the corresponding author upon reasonable request.


Supplementary Material



Publication History

Received: 26 February 2024

Accepted: 21 August 2024

Article published online:
27 January 2025

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