1. Long-term treatment risks in multiple sclerosis: risk knowledge and risk perception in a large cohort of mitoxantrone-treated patients
- Author
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J Repenthin, T Rosenkranz, Sascha Köpke, W G Elias, Jan Patrick Stellmann, Ayleen Hofmann, Jürgen Kasper, Friederike Ufer, Christoph Heesen, I Pauly, and Thomas Weber
- Subjects
Male ,Risk ,Health Knowledge, Attitudes, Practice ,medicine.medical_specialty ,Pediatrics ,Long term treatment ,Cohort Studies ,Surveys and Questionnaires ,Patient information ,medicine ,Humans ,Topoisomerase II Inhibitors ,Retrospective Studies ,Mitoxantrone ,Cardiotoxicity ,business.industry ,Multiple sclerosis ,Retrospective cohort study ,Middle Aged ,Multiple Sclerosis, Chronic Progressive ,medicine.disease ,Large cohort ,Risk perception ,Neurology ,Physical therapy ,Female ,Neurology (clinical) ,business ,medicine.drug - Abstract
Background: Balancing treatment benefits and risks is part of a shared decision-making process before initiating any treatment in multiple sclerosis (MS). Patients understand, appreciate and profit from evidence-based patient information (EBPI). While these processes are well known, long-term risk awareness and risk processing of patients has not been studied. Mitoxantrone treatment in MS is associated with long-term major potential harms – leukaemia (LK) and cardiotoxicity (CT). The risk knowledge and perception among patients currently or previously treated with mitoxantrone is unknown. Objectives: The objective of this article is to conduct a retrospective cohort study in greater Hamburg, Germany, to estimate risk awareness and perception in MS patients treated with mitoxantrone. Methods: MS patients with at least one dose of mitoxantrone between 1991 and 2010 from six major MS centres in greater Hamburg received a questionnaire assessing risk awareness and perception as well as a written EBPI about mitoxantrone-associated LK and CT. Results: Fifty-one per cent in the cohort of n = 575 patients returned the questionnaire. Forty per cent correctly estimated the risk of LK (CT 16%); 56% underestimated the risk (CT 82%). Reading the information increased the accuracy of LK risk estimation, and patients did not report an increase of worries. The EBPI was appreciated and recommended by 85%. Conclusion: Risk awareness of mitoxantrone-treated patients is insufficient, but can be increased by EBPI without increasing worries. Continued patient information during and after treatment should be implemented in management algorithms.
- Published
- 2012
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