Mindfulness in Parkinson's disease: A French national survey and a pilot intervention feasibility trial using the MBSR program (M-Park).

BACKGROUND: Non-pharmacological complementary interventions, particularly mind-body practices, are of growing importance in the management of Parkinson's disease (PD). Among these, mindfulness meditation seems particularly effective, especially on anxiety and depression symptoms. However, current knowledge on mindfulness standardized programs in PD is still limited, particularly in France. Aiming at improving this knowledge we designed the M-PARK study in two phases. Phase 1 consisted in a French national survey to explore expectations, needs and initiatives for mindfulness meditation for PD patients. Phase 2 was a clinical trial with objectives to assess feasibility, acceptability and effects of a mindfulness (MBSR) program proposed to PD patients. METHODS: In phase 1, online questionnaires were addressed to members of a French PD patient's association (France Parkinson) and French MBSR qualified instructors. In Phase 2, a clinical trial involving 30 PD patients consisted of a standard MBSR program with two additional evaluation visits one month before and after the program. Data collection included a global clinical evaluation, assessment of depression and anxiety symptoms, sleep, pain and quality of life and a face-to-face interview for qualitative assessment of the acceptability and lived experience during the program. Three MBSR programs were proposed to three groups of ten patients: two were online due to the pandemic situation, one proposed to patients with no or minor fluctuations (group 1) and one for patients with slight to moderate fluctuations (group 2), and the last one face-to-face for patients with no or minor fluctuations (group 3). RESULTS: French survey: 209 responses were collected for the questionnaire sent to the members of the association France Parkinson; and 68 for the questionnaire sent to the instructors. Two-thirds of patients surveyed had heard of mindfulness meditation (66%), but were unaware of what this approach really consisted and how it could really help them. Few instructors (29%) had had to deal with patients with PD in their current practice. Yet 90% of patients surveyed indicated they were in favor of introducing this type of approach into their care. CLINICAL TRIAL: The results indicated that the program is feasible and acceptable both online and face-to-face for patients with PD. Among the 30 patients enrolled, 25 completed the program. No unwanted effects related to mindfulness meditation practice were observed. The results showed a statistically significant reduction in anxiety symptoms, depressive symptoms, and improvement in quality of life. Furthermore, no statistically significant change was measured for pain or sleep quality. There was no striking difference in results observed between the patient groups. For the qualitative analysis, major themes highlighted were in relation with: (i) the lived experience during program; (ii) changes in the daily life; and (iii) disease-related changes. A large majority of patients who completed the program (24/25) described their participation as positive or very positive. They reported better management of stress and emotions, as well as greater autonomy in implementing new behavioral strategies, particularly in terms of self-care, acceptance, and de-identification from the disease. CONCLUSION: Despite high expectations, PD patients are poorly informed about available mindfulness programs. This study however shows that these programs, whether offered online or face-to-face, are particularly beneficial, especially for anxiety and depressive symptoms, at least in mild-to-moderate stages of the disease.

Communicating chronic hydrocephalus: A review.

Formerly called normal pressure hydrocephalus, communicating chronic hydrocephalus (CCH) is a condition affecting 0.1 to 0.5% of patients over 60years of age. The pathophysiology of this disease is poorly understood, but a defect in cerebrospinal fluid (CSF) resorption appears to be commonly defined as the cause of the neurological disorders. The last important discovery is the description of the glymphatic system and its implication in CCH and CSF resorption. Comorbidities (Alzheimer's disease, microangiopathy, parkinsonism) are very frequent, and involve a diagnostic challenge. The clinical presentation is based on the Hakim and Adams triad, comprising gait disorders, mainly impairing walking, cognitive disorders, affecting executive functions, episodic memory, visuospatial cognition, and sphincter disorders as urinary incontinence (detrusor hyperactivity). The diagnosis is suspected through a set of arguments, combining the clinical presentation, the radiological data of the magnetic resonance imaging (MRI) showing a ventriculomegaly associated with signs of transependymomous resorption of the CSF and disappearance of the cortical sulci, and the clinical response to the depletion of CSF. In the presence of all these elements, or a strong clinical suspicion, the standard treatment will be of a permanent CSF shunt, using a ventriculoatrial or ventriculoperitoneal shunt. The effectiveness of this treatment defines the diagnosis. The clinical improvement is better when treatment occurs early after the onset of the disorders, reaching 75 to 90% of motor improvement.

French consensus procedure for assessing cognitive function in Parkinson's disease.

INTRODUCTION: One of the objectives of the French expert centers for Parkinson's disease (NS-Park) network was to determine a consensus procedure for assessing cognitive function in patients with Parkinson's. This article presents this procedure and briefly describes the selected tests. METHODS: A group of 13 experts used the Delphi method for consensus building to define the overall structure and components of the assessment procedure. For inclusion in the battery, tests had to be validated in the French language, require little motor participation, have normative data and be recognized by the international community. Experimental tasks and tests requiring specific devices were excluded. RESULTS: Two possibilities were identified, depending on whether an abbreviated or comprehensive assessment of cognitive function was necessary. For an abbreviated assessment, the experts recommended the Montreal Cognitive Assessment (MoCA) as a screening test for cognitive impairment or dementia. For a comprehensive neuropsychological assessment, the experts recommended assessing global efficiency plus the five main cognitive domains (attention and working memory, executive function, episodic memory, visuospatial function and language) that may be impaired in Parkinson's disease, using two tests for each domain. DISCUSSION AND CONCLUSION: A common procedure for assessing cognitive function is now available across the French network dedicated to Parkinson's disease, and is recommended for both research and clinical practice. It will also help to promote standardization of the neuropsychological assessment of Parkinson's disease.