Independent association of sleep quality, fatigue, and vital exhaustion with platelet count in patients with a previous venous thromboembolic event

Krummenacher, René; Lukas, Paul S; Biasiutti, Franziska Demarmels; Begré, Stefan; Znoj, Hansjörg; Von Känel, Roland (2009). Independent association of sleep quality, fatigue, and vital exhaustion with platelet count in patients with a previous venous thromboembolic event. Platelets, 20(8), pp. 566-574. London: Informa Healthcare 10.3109/09537100903295922

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Elevated platelet count might reflect increased inflammation as an etiological factor for venous thromboembolism (VTE). Poor sleep, fatigue, and exhaustion are all associated with inflammation and are also common sequelae of chronic psychological stress that previously predicted increased risk of VTE. We hypothesized that platelet count would be high in patients with VTE who sleep poorly and who are fatigued and exhausted. We investigated 205 patients scheduled for thrombophilia work-up > or =3 months after an objectively diagnosed venous thromboembolic event. They completed the Jenkins Sleep Questionnaire to rate subjective sleep quality and the short forms of the Multidimensional Fatigue Symptom Inventory and Maastricht Vital Exhaustion Questionnaire. Platelet count was determined by a mechanical Coulter counter. Analyses controlled for age, sex, body mass index, time since the index event, and medication. After taking into account these covariates, poorer sleep quality (p = 0.001; DeltaR(2)= 0.046), high fatigue (p = 0.008; DeltaR(2)= 0.032), and vital exhaustion (p = 0.050; DeltaR(2)= 0.017) were all associated with elevated platelet count. In addition, high level of fatigue mediated the relationship between poor sleep quality and elevated platelet count (p = 0.046). Poor sleep quality, high levels of fatigue, and vital exhaustion were identified as correlates of an elevated platelet count in patients with a previous episode of VTE. Given the emerging role of inflammatory processes in VTE, the findings suggest a mechanism through which behavioral and chronic psychological stressors might contribute to incident and recurrent venous thrombotic events.

Item Type:	Journal Article (Original Article)
Division/Institute:	04 Faculty of Medicine > Department of Head Organs and Neurology (DKNS) > Clinic of Neurology > Centre of Competence for Psychosomatic Medicine 04 Faculty of Medicine > Department of Haematology, Oncology, Infectious Diseases, Laboratory Medicine and Hospital Pharmacy (DOLS) > Clinic of Haematology and Central Haematological Laboratory 07 Faculty of Human Sciences > Institute of Psychology > Clinical Psychology and Psychotherapy
UniBE Contributor:	Lukas, Paul, Demarmels Biasiutti, Franziska, Begré, Stefan, Znoj, Hans Jörg, von Känel, Roland
ISSN:	0953-7104
Publisher:	Informa Healthcare
Language:	English
Submitter:	Factscience Import
Date Deposited:	04 Oct 2013 15:10
Last Modified:	02 Mar 2023 23:23
Publisher DOI:	10.3109/09537100903295922
PubMed ID:	19857046
Web of Science ID:	000272719400005
URI:	https://boris.unibe.ch/id/eprint/30906 (FactScience: 195266)