| Summary: | Abstract Objectives Deep brain stimulation, continuous subcutaneous apomorphine infusion, and levodopa–carbidopa intestinal gel infusion, together called device‐aided therapies (DAT), are introduced when oral and transdermal pharmacotherapy are not enough for a satisfactory control of Parkinson's disease (PD) symptoms. Solid relationships are central to an individual's well‐being, but the impact of close relationships in advanced PD remains underexplored. The aim of this study was to investigate the development of close relationships between PD patients and their partners following the initiation of DAT and to examine the relationship structures in these relationships. Materials and Methods This was a retrospective quantitative multicenter pilot study wherein 41 couples, patients with advanced PD and their partners, retrospectively rated their relationship satisfaction before the start of DAT, after one year of DAT and at the time of the interview. The couples also answered the Experiences in Close Relationships—Questionnaire of Relational Structures (ECR‐RS). Results Partners more often report changes in relationship satisfaction than patients between baseline and both 1 year after start of DAT (p = .049) and last evaluation (p = .041). The ECR‐RS data reported significantly higher avoidance score for partners (p = .005) and significantly higher anxiety score for patients (p = .024). Conclusions The close relationship wherein one part has PD and receives DAT has a high risk of being unequal. Prospective studies are needed for further clarification of the interplay between advanced PD, DAT, and close relationships, this in order to improve pre‐ and postinterventional support for PD patients receiving DAT, as well as their partners.
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