Ethnic disparities in long-term outcomes and health care usage after stroke in the Netherlands.

BACKGROUND: Poststroke health-related quality of life (HRQOL) is an important outcome that may be influenced by ethnicity. OBJECTIVE: To compare long-term HRQOL, mental health and healthcare utilization between stroke survivors with a European (EUB) and non-European background (NEUB) in a hospital population. METHODS: In this retrospective cohort study patients completed questionnaires 2-5 years after stroke. Assessments included the EuroQol-5D-3L (EQ-5D), Short Form (SF-36, with physical and mental component summary scales, PCS and MCS), Hospital Anxiety and Depression Scale (HADS; scores ≥8 indicate clinically relevant complaints) and a questionnaire on the usage of services from physicians and/or healthcare professionals (HCP) in the past 6 months. Linear and logistic regression analysis was used, adjusted for age, sex, level of education and functional outcome. RESULTS: We included 207 patients (169 EUB, 38 NEUB); mean age 63.8 years (SD 14.4); 60.4 % male; mean follow up 36.3 months (SD 9.9). The EQ-5D and the PCS were higher in EUB versus NEUB patients (42.9 vs 35.4, p < 0.01; 0.76 vs 0.60, p < 0.01). The MCS showed a comparable, non-significant trend. The percentage of patients with HADS depression ≥8 was higher in NEUB patients versus EUB patients (54.3 % vs 29.8 %; p > 0.01). Significantly more NEUB patients had visited two or more physicians in the past six months compared to EUB patients (52.0 % vs 26.0 %; p = 0.01) whereas the use of services from HCP was similar. CONCLUSIONS: NEUB stroke patients had worse outcomes regarding HRQOL and depressive symptoms compared to EUB patients. NEUB patients visited more physicians.

Diplopia in Parkinson's disease: visual illusion or oculomotor impairment?

INTRODUCTION: Approximately 20% of patients with Parkinson's disease (PD) experience diplopia; however, the cause of the diplopia is unclear. We aimed to explore the association of diplopia, and its subtypes, with oculomotor abnormalities, impaired vision, and visual hallucinations, in patients with PD. METHODS: This exploratory study included 41 PD patients, recruited from two general hospitals, of whom 25 had diplopia and 16 did not have diplopia, as well as 23 healthy controls (HCs). We defined subtypes of diplopia as selective diplopia, i.e., diplopia of single objects, and complete diplopia, i.e., diplopia of the entire visual field. All participants underwent a full orthoptic and ophthalmologic examination. RESULTS: PD patients with diplopia had a high prevalence of oculomotor abnormalities (84%), impaired vision (44%), and visual hallucinations (44%), compared to PD patients without diplopia (33%, 6%, and none, respectively, p < 0.01), and compared to HCs (23%, 9%, and none, respectively, p < 0.01). Oculomotor abnormalities were equally prevalent in both subtypes of diplopia (selective and complete), whereas impaired vision was predominantly found in patients with selective diplopia. Moreover, only patients with selective diplopia had visual hallucinations. CONCLUSIONS: In PD patients, diplopia may be indicative of oculomotor or visual impairments. Hence, it is worthwhile to refer PD patients with diplopia to an orthoptist and an ophthalmologist for evaluation and, possibly, treatment of diplopia. Furthermore, in the case of selective diplopia, the neurologist should consider the presence of visual hallucinations, which may require the adjustment of the patient's medication.

Eye movement abnormalities in essential tremor versus tremor dominant Parkinson's disease.

OBJECTIVE: To show that eye movement abnormalities differ between essential tremor (ET) and tremor dominant Parkinson's disease (PD-T), and that these abnormalities reflect cerebellar dysfunction in ET and basal ganglia pathology in PD-T. METHODS: In this exploratory study, in 23 patients with ET, 21 age-matched patients with PD-T, and 19 age-matched healthy controls (HCs), we investigated visually guided saccades, antisaccades, and smooth pursuit eye movements (SPEM). RESULTS: While the ET group had a normal gain (saccade amplitude/target amplitude) and latency of saccades, the PD-T group had hypometric visually guided saccades, and a prolonged latency of visually guided saccades and antisaccades. The SPEM gain was similarly low in both ET and PD-T and was significantly lower in both patient groups than in the HC group. CONCLUSIONS: In ET, SPEM gain was reduced in the presence of normal saccades, whereas in PD-T, the reduced SPEM gain was accompanied by delayed saccade initiation and hypometric saccades, in line with cerebellar dysfunction in ET and basal ganglia dysfunction in PD-T. SIGNIFICANCE: These findings support the presumed cerebellar pathology in ET. In addition, the difference in saccade features may contribute to the groundwork for a quantitative diagnostic test to differentiate between these disorders.