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Cognitive Behavior Therapy for Anxiety in Parkinson's Disease: Outcomes for Patients and Caregivers
Nadeeka N W Dissanayaka1,2, Deidre Pye1, Leander K Mitchell1
1a The University of Queensland , Brisbane , Australia.
Objective:
Anxiety negatively impacts the quality of life of Parkinson's disease (PD) patients and caregivers. Despite high prevalence, there is a paucity of trials investigating effective treatments for anxiety in PD. This uncontrolled study investigated the use of a manualized and tailored Cognitive Behavior Therapy (CBT) for anxiety in PD.
Methods:
Participants completed 6 weekly CBT sessions. Pre-, post- and follow-up (3 and 6 months) assessments were made. Change in outcomes were analysed using t-tests and Reliability Change Index. Of 17 PD patients who agreed to CBT, 12 completed the intervention.
Results:
This study showed a significant reduction in Hamilton Anxiety Rating Scale scores in PD immediately post CBT (t(11) = 3.59, p < .01), maintained at 3-month (t(8) = 2.83, p = .02) and 6-month (t(7) = 2.07, p = .04) follow-up. A reduction in caregiver burden (t(11) = 2.68, p = .03) was observed post intervention. Improvements in motor disability (t(11) = 2.41, p = .04) and cognitive scores (t(11) = -2.92, p = .01) were also observed post intervention and at follow-up.
Conclusions:
Tailored CBT can be used to treat anxiety in PD.
Clinical Implications:
This study provides preliminary evidence suggesting that tailored CBT reduces anxiety in PD with persisting benefits, and lowers caregiver burden.
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