• Martin Klietz, Johanna M Berndt, Florian Wegner, Nils Schneider, Günter U Höglinger, Carsten Eggers, and Stephanie Stiel.
• Department of Neurology, Hannover Medical School, Carl-Neuberg-Straße 1, 30625 Hannover, Germany.
• J Clin Med. 2020 Feb 6; 9 (2).

AbstractA huge proportion of people with Parkinson's disease (PwP) in Germany have written an advance directive (AD). However, the content of these forms in regard to specific Parkinson's disease (PD)-related complications is rather low. There is an urgent need to specify ADs of PwP and consequently to improve decision-making concerning end-of-life aspects for affected patients. Evidence- and consensus-based PD-specific recommendations for ADs might help to close this gap. A Delphi study with two online Delphi rounds was initiated. Initial recommendations were built on findings from previous studies and derived from evidence-based literature. Consensus on recommendations was defined as ≥80% concordance regarding clarity of formulated aspects and relevance for clinical practice. A total of 22 experts (15.2% response rate) predominantly from the workgroup 'neuro-palliative care' in Germany performed two Delphi rounds. Consensus was achieved for 14 of 24 initially presented recommendations. Recommendations relating to dopaminergic therapy as well as to non-oral therapy options were considered important by the expert panel. The recommendations should be taken into account when developing and giving advice on ADs for PwP. Health professionals should be trained in counselling ADs of PwP and in integrating these recommendations in ADs during the disease course of PD.

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