Effect of activity-based mirror therapy on lower limb motor-recovery and gait in stroke: A randomised controlled trial

Objective: To determine the effect of activity-based mirror therapy (MT) on motor recovery and gait in chronic poststroke hemiparetic subjects.

Design: A randomised, controlled, assessor-blinded trial.

Setting: Rehabilitation institute.

Participants: Thirty-six chronic poststroke (15.89?±?9.01 months) hemiparetic subjects (age: 46.44?±?7.89 years, 30 men and functional ambulation classification of median level 3).

Interventions: Activity-based MT comprised movements such as ball-rolling, rocker-board, and pedalling. The activities were provided on the less-affected side in front of the mirror while hiding the affected limb. The movement of the less-affected lower limb was projected as over the affected limb. Conventional motor therapy based on neurophysiological approaches was also provided to the experimental group. The control group received only conventional management.

Main outcome measures: Brunnstrom recovery stages (BRS), Fugl-Meyer assessment lower extremity (FMA-LE), Rivermead visual gait assessment (RVGA), and 10-metre walk test (10-MWT).

Results: Postintervention, the experimental group exhibited significant and favourable changes for FMA-LE (mean difference?=?3.29, 95% CI?=?1.23–5.35, p?=?.003) and RVGA (mean difference?=?5.41, 95% CI?=?1.12–9.71, p?=?.015) in comparison to the control group. No considerable changes were observed on 10-MWT.

Conclusions: Activity-based MT facilitates motor recovery of the lower limb as well as reduces gait deviations among chronic poststroke hemiparetic subjects.     

Neighborhood social cohesion and cognitive function in U.S. Chinese older adults—findings from the PINE study

Objectives: The projected increase in the population of older adults in the United States entails a pressing need to examine risk and protective factors associated with cognitive function. This study aims to examine the association between neighborhood social cohesion and cognitive function among older Chinese adults in the United States.

Method: Using the first epidemiological survey of older Chinese Americans and applying ordinary least squares and quantile regressions, this study examines the association between neighborhood social cohesion and various domains of cognitive function.

Results: Results show that neighborhood social cohesion is independently associated with most domains of cognitive function (i.e. global cognition score, and its components such as the Chinese Mini-Mental State Examination and executive function and episodic memory measures).

Conclusion: This study represents one of a few initial efforts that examined the association between neighborhood social cohesion and cognitive function for Chinese older adults in the United States. Our findings suggest that socially cohesive neighborhoods can provide enriched environments where active lifestyles can be encouraged, and cognitive skills and abilities can be stimulated, practiced, and preserved for older adults.     

Executive control deficits correlate with reduced frontal white matter volume in multiple sclerosis

Introduction: Executive control deficits are frequently reported in patients with multiple sclerosis (MS). We have previously proposed that in the context of competing automatic and volitional processes, such deficits may in part reflect poor resolution of response conflict. This study aimed to investigate the neuropathological underpinnings of executive control deficits in MS, focusing on the frontostriatal system proposed to mediate executive control.

Method: Forty-one MS patients and 25 healthy controls completed measures of executive control that have previously been used to characterize deficit in MS: antisaccade and endogenously cued saccade paradigms, and the Stroop color and word test. Relationships between task performance and volumetric measures of frontal white matter, frontal gray matter, striatum, and pallidum were investigated.

Results: MS participants performed significantly more poorly on the Stroop and antisaccade tasks than controls. For MS patients, higher erroneous responding on the antisaccade task was related to reduced frontal white matter volume.

Conclusion: These findings suggest that loss of frontal white matter may underlie executive control deficits in MS, and provides information that may inform the development of targeted cognitive training strategies in MS.     

Exploring dimensions of social support and resilience when providing care at the end of life: a qualitative study

Background: Research shows that formal and informal social support can facilitate resilience in carers. There is a paucity of research exploring social support and resilience amongst recently bereaved informal carers.

Aim: To examine how the presence or absence of distinct dimensions of social support facilitate or hinder resilience in recently bereaved informal carers.

Participants: 44 bereaved carers, who had been identified by GP as ‘main carer’ of someone recently deceased (3–12 months), aged between 38 and 87 years old (mean= 67).

Methods: Thematic analysis then the Ecological Framework of Resilience as an organisational tool to develop overarching themes in the data. We used the Sherbourne and Stewart model to identify social support that was lacking as well as social support that was present.

Results: A range of social support types were identified. There was an emphasis on the importance of relationships with both health professionals and family members, including the care recipient. However, social support was not necessary for resilience if the participant had other resources.

Conclusions: Social support for carers providing end of life care is almost exclusively based around end of life care ‘work’. In comparison to other research our study suggests that relationships with family and health professionals are paramount. Multidimensional support is needed for carers to enhance their resilience.     

French translation and validation of a fragile X syndrome screening checklist

Background: Fragile X syndrome (FXS) is the most common cause of inherited intellectual disability among men. This syndrome is frequently underdiagnosed in adults. The aim of this study was to develop and validate a French translation of the screening checklist Fragiele-X screeningslijst.

Method: The validation sample for the translated checklist included 22 pairs of men between the ages of 18 and 52, matched by age and degree of intellectual impairment.

Results: The translated checklist achieved coefficients of 0.92 for internal consistency, 0.90 for test-retest reliability and 0.65 for inter-rater reliability. These psychometric properties are commensurate with those of the original checklist.

Conclusion: Therefore, the translated checklist developed in this study can be considered a valid screening instrument for the detection of FXS in men with intellectual disabilities.

Abbreviations: FXS: fragile X syndrome; FMR1: fragile X mental retardation 1 (gene)     

Repetitive verbalization in Alzheimer’s disease

Background: Repetitive verbalization in Alzheimer’s disease (AD) refers to the tendency of AD patients to repeat the same story/question to the same listener.

Aim: Our study assessed whether this verbal perseveration might be related to episodic memory decline, values of teaching, inhibitory decline, and/or decline in cognitive theory of mind.

Methods & Procedures: Thirty mild AD patients and 33 control older adults were asked to perform four verbal fluency tasks, and repeated words were retained as an index of repetitive verbalization. Participants were also administered the Grober and Buschke episodic memory task, scales of values of teaching, the Hayling inhibition task, and the false-belief task for the cognitive theory of mind.

Outcomes & Results: Results showed more repetitive verbalization in AD patients than in control older adults. Repetitive verbalization was significantly correlated with inhibition and episodic memory in AD patients. As for control older adults, repetitive verbalization was significantly correlated with values of teaching and inhibition. Regression analyses showed that repetitive verbalization was significantly predicted by inhibition in AD patients and values of teaching in control older adults.

Conclusions: Repetitive verbalization may reflect the difficulty in inhibiting irrelevant stimuli in AD patients, but it may serve as a tool to ensure transmission of personal knowledge in normal aging. Our findings suggest distinct functions of repetitive verbalization in normal aging and AD.     

Pharmacogenetics and levodopa induced motor complications

Aim: L-dopa remains the most effective symptomatic therapy for Parkinson's disease (PD) but unfortunately, its chronic use is often associated with motor complications. This review highlights the importance of pharmacogenetics in an individualised PD therapeutic approach.

Material and Methods: review of the literature was done.

Results: PD patients show remarkable heterogeneity in their response to L-dopa and this profound interindividual heterogeneity suggests that there is a genetic predisposition.

Conclusions: The impact of the genetic makeup of every individual on PD treatment appears to be of great importance in order to achieve not only the optimum therapeutic effect, but also with minimal side effects.     

Oxyhemoglobin changes in the prefrontal cortex in response to cognitive tasks: a systematic review

Purpose of the study: the aim of this study was to synthesize PFC fNIRS outcomes on the effects of cognitive tasks compared to resting/baseline tasks in healthy adults from studies utilizing a pre/post design.

Material and methods: original research studies were searched from seven databases (MEDLINE, EMBASE, CENTRAL, CINAHL, SCOPUS, PEDro and PubMed). Subsequently, two independent reviewers screened the titles and abstracts followed by full-text reviews to assess the studies' eligibility.

Results: eleven studies met the inclusion criteria and had data abstracted and quality assessed. Methodology varied considerably and yet cognitive tasks resulted in the ΔO₂Hb increasing in 8 of the 11 and ΔHHb decreasing in 8 of 8 studies that reported this outcome. The cognitive tasks from 10 of the 11 studies were classified as “Working Memory” and “Verbal Fluency Tasks”.

Conclusions: although, the data comparison was challenging provided the heterogeneity in methodology, the results across studies were similar.     

A how-to guide to aphasia services: celebrating Professor Linda Worrall’s contribution to the field

Background: This article recognises Professor Linda Worrall’s contribution to aphasiology and discusses research themes which have grown from her work.

Aims: To review, summarise, and discuss literature relating to four themes which have emerged from the work of Professor Worrall: (1) Research capacity building; (2) Implementation of research evidence in clinical practice; (3) Meaningful outcome measurement; and (4) Improvement of psychological and emotional outcomes.

Main contribution: A review of the literature, with examples of practical applications.

Conclusions: The work of Professor Worrall has greatly influenced the field of aphasia; her legacy is the research capacity she has built in Australia and around the world.     

A Note on the “One Case per Stagger Position” Character of Common Multiple-Baseline Intervention Designs

Purpose: To overcome the constraint of common multiple-baseline designs that only one case per stagger position is permitted.

Methods: Three alternative strategies for assigning more than one case to each stagger position are examined.

Results: The three recommended strategies achieve the objective while maintaining the study’s internal and statistical-conclusion validities.

Conclusions: ExPRT, a freely available Excel-based randomization-test package, can be used to assist in both the design and statistical analysis associated with each of the strategies.     

Relations between executive function,language, and functional communication in severe aphasia

Background: Intervention in severe aphasia often means aiming for access to meaningful social interaction in spite of linguistic barriers that might not be treatable. This demands knowledge about the different factors that influence functional communication. Apart from linguistic ability, executive functions are thought to play an important role.

Aims: To expand the understanding of the relations of executive functions and linguistic ability to functional communication in severe aphasia.

Methods and Procedures: Executive functions, linguistic ability, and functional communication were assessed in 47 participants with severe aphasia. The results were analysed for the total sample and for a verbal and a nonverbal subgroup.

Outcomes and Results: Impairment of executive function was found in 85% of the participants. There were moderate to strong correlations between all subtests of executive functions and linguistic ability. In the total sample, significant partial correlation was found between functional communication and verbal output. In the nonverbal subgroup, there was a significant partial correlation between executive function and functional communication, when controlling for linguistic ability. In the verbal subgroup, no relations were found between executive functions or language and functional communication.

Conclusions: Impairments of executive functions are common in people with severe aphasia, and executive function and linguistic ability are closely related. The ability to produce verbal output is strongly related to functional communication, but in people with extreme limitation or total absence of verbal output, executive functions seem to be an important factor for functional communication. There is a large variation of executive functions and functional communication in people with severe aphasia, especially in the nonverbal subgroup. It is important that people with severe aphasia are given a complete and proper evaluation of their abilities, and that the possible importance of executive function to communication is considered in communication intervention.     

Factors affecting rehabilitation and use of upper limb after stroke: views from healthcare professionals and stroke survivors

Background: Training of the upper limb (UL) is limited in stroke rehabilitation, and about 50% of stroke survivors do not regain useful function in their upper limb.

Objectives: This study explored what factors affect rehabilitation and use of upper limb after stroke from a stroke survivor and healthcare professional perspective to better understand low engagement in UL rehabilitation in the chronic stages of stroke.

Method: Eight chronic stroke survivors and 21 healthcare professionals took part in semi-structured interviews or in one of three focus groups, respectively.

Results: Thematic analysis revealed three main themes: Availability of resources, Healthcare professional–patient relationship, and Psychosocial factors. Availability of resources and Healthcare professional–patient relationship indicated that due to resource pressures and a lack of communication and education, positive upper limb rehabilitation behaviors (e.g. engaging and integrating the upper limb in daily activity) were not always established in the early stages post-stroke. Psychosocial factors illustrated the cognitive and psychological barriers to sustained engagement with upper limb rehabilitation.

Conclusion: The findings indicate that stroke survivors and healthcare professionals have very similar understandings of barriers to UL activity, and positive upper limb rehabilitation behaviors are not always established early in recovery post-stroke. Increased resources and healthcare professional–patient relationships seem key factors to establishing positive perceptions of UL rehabilitation. Addressing psychosocial issues and resource limitations may help sustain engagement with UL rehabilitation.     

Do patients with severe poststroke communication difficulties have a higher incidence of falls during inpatient rehabilitation? A retrospective cohort study

Background: Falls in hospital are common and serious complications of stroke. Associations have been found between communication disorders and increased rates of falls, but have received relatively little consideration as a risk factor for falls among stroke survivors.

Objectives: To investigate whether there is an association between severe communication impairment and falls among patients receiving inpatient rehabilitation after stroke.

Methods: A retrospective audit of 149 records of consecutive patients admitted to an inpatient rehabilitation facility after stroke over a two-year period was conducted. The relationship between falls and severe communication impairment was explored using (1) direct comparison of falls in patients with and without functional communication for the inpatient ward environment and (2) multivariate logistic regression to examine factors that may predict falls, including presence or absence of functional communication. In each analysis, falls were examined both as a binary outcome (fall or no fall), and the rate of falls per day.

Results: The 32 patients in the sample (21.7%) who were unable to communicate their basic needs were almost twice as likely to fall in hospital as those with functional communication (RR 1.94, 95% CI 1.15 to 3.24). Several commonly assessed factors were not significant predictors of falls (including falls history, polypharmacy, and cognitive impairment) in this population. Lack of functional communication was the strongest independent predictor of falls rate.

Conclusions: Findings suggest that severe communication disorders may be under recognized as a falls risk factor after stroke.     

Cognitive impairment following chemotherapy for breast cancer: The impact of practice effect on results

Chemotherapy-Related Cognitive Impairment (CRCI) can be an adverse effect in women treated for breast cancer. Some longitudinal studies reported deficits in attention, memory, and executive function following treatment, but other studies did not find cognitive changes. It is known that practice effects (PE) on repeated assessments with cognitive tests contribute to the discrepancies in these results, but its influence on scores has not been systematically explored. The present study examines the impact of PE on retest scores in a group of women with breast cancer treated with chemotherapy and evaluated longitudinally.

Method: 51 women with breast cancer treated with a combination of 5-fluorouracil, epirubicin, and cyclophosphamide with or without taxanes were assessed after surgery but before chemotherapy (T1), post-chemotherapy (T2), and at one year after T2 (T3). Longitudinal changes on cognitive performance were analyzed twice: when retest scores were not corrected for PE and when correction for PE was applied to T2 and T3 scores.

Results: When PE was not corrected, progressive improvement over time in measures of memory and divided attention at T2 and T3 was observed. In contrast, when PE was corrected, worsening was found in measures of memory, fluency, executive function, and attention at T2 and in attention and executive function at T3. Results after correction for PE are in line with previous longitudinal studies that report cognitive impairment after treatment with chemotherapy for breast cancer.

Conclusion: Accounting for PE is recommended to identify true change on cognition through treatment with chemotherapy for breast cancer.     

An elderly patient with Alzheimer’s disease,normal pressure hydrocephalus and traumatic brain injury: presented with behavioral symptoms similar to behavioral variant frontotemporal dementia

Objective: Traumatic brain injury (TBI) is nondegenerative insult to brain from external mechanical forces. It may cause cognitive impairment, psychological problems in the long period. Besides traumatic brain injury also induces neuroinflammation and neurodegeneration process, and increases risk of dementia. It may cause various psychiatric complications such as depression, posttraumatic stress disorder, generalized anxiety disorder, and other cognitive and behavioral sequela according to site of involvement in the brain.

Methods: We report a patient who has behavioral symptoms, amnesia and gait apraxy after TBI. Patient's symptoms were similar to behavioral variant Frontotemporal Dementia (bv FTD).

Results: After detailed neurocognitive and radiologic evaluation he was diagnosed with Normal Pressure Hydrocephalus (NPH), and Alzheimer's Disease (AD) following TBI.

Conclusion: Comprehensive geriatric assessment, including detailed radiological examinations, if it is necessary, is recommended for the optimum management of elderly patients with cognitive and psychosocial problems in order to avoid misdiagnosis and inappropriate treatment.     

Characterising omission errors in everyday task completion and cognitive correlates in individuals with mild cognitive impairment and dementia

Objective: Functional ability declines with age and cognitive impairment. This study investigated errors of omission made by community-dwelling older adults completing everyday tasks in a naturalistic setting.

Method: Sixty-five cognitively healthy older adults (HOA), 19 individuals with single domain mild cognitive impairment (sdMCI), 33 individuals with multi-domain MCI (mdMCI), and 13 individuals with dementia completed measures of memory, processing speed, working memory, and executive functioning, as well as eight different activities of daily living in a naturalistic environment. Task steps were divided into preparatory, action-oriented, and concluding steps.

Results: For action-oriented steps, the number of omission errors increased with level of cognitive impairment beyond sdMCI (i.e., HOA?=?sdMCI?<?mdMCI?<?dementia). In contrast, for preparatory and concluding steps, the dementia group committed more omission errors than the HOA, sdMCI, and mdMCI groups, which did not differ.

Conclusions: The results suggest that the more complex and integrative action-oriented steps may be the first type of everyday task step to be affected in the process of cognitive decline, with preparatory and concluding steps being preserved longer and only showing decline in later stages of impairment (i.e., dementia). Individuals with sdMCI may use other intact abilities to compensate for task omission errors.     

Acute aseptic meningitis during isotretinoin treatment for nodular acne solely presenting with headache: case report and brief review of the literature

Purpose/aim: We describe, in detail, the first case of isotretinoin-induced aseptic meningitis. A brief summary of the literature on drug-induced aseptic meningitis (DIAM) is also presented.

Materials and methods: A 20-year old female patient with probable (Naranjo adverse reaction probability score of 7) DIAM during treatment with isotretinoin therapy for nodular acne solely, presenting with headache. Pseudotumor cerebri was appropriately ruled-out.

Results: Summary of data altogether lead us suggest that isotretinoin triggered DIAM, possible due to a delayed hypersensitivity mechanism type III or IV.

Conclusion: We highlight a quite uncommon cause of DIAM that may be increasing in frequency due to the current increasing use of isotretinoin against nodular acne.     

Choosing among second-generation antidepressant treatments for depressed patients with cardiac diseases

Objectives: The present paper aimed to assist physicians in the accurate choice among second-generation agents (SGAs) for patients with cardiovascular disease (CVD).

Methods: We reviewed the published pharmacokinetic (PK) and pharmacodynamic (PD) clinical data that report potential -or absence of- drug interactions between second-generation agents (SGAs) and CVD drugs most commonly used in cardiology, including antiplatelet drugs and anticoagulants, statins, beta-blockers, angiotensin-converting enzyme inhibitors, calcium channel blockers, diuretics and the antiarrhythmic drugs amiodarone and digoxin.

We also reviewed the cardiovascular safety profile that has been published for each class of SGAs and side effects reported by patients with CVD.

Results: Most relevant PK/PD data about SGAs and CVD drugs are based on small studies or detailed case reports. In many cases, the drug interactions are at most assessed in healthy volunteers so that the clinical relevance of findings needs further investigation in patients with CVD. Case reports of serious, sometimes fatal reactions due to concomitant administration of certain drugs require careful consideration.

The major cardiac side effects of SGAs include HR increase, postural hypotension and slight prolongation of the intraventricular conduction time and QT interval. On normal dosage of antidepressants, both advanced heart block and ventricular arrhythmias could occur in patients with severe heart disease, together with clinically important loss of myocardial contractile force.

Conclusions: Data reported in the present review should help physicians about their decision-making processes that govern SGAs use in CVD patients.     

Perspectives of carers of people with intellectual disability accessing general practice: “I’d travel to the ends of the earth for the right person”⁣

Background: Informal carers often play an integral role in the lives of people with intellectual disability (ID) residing in the community. In this study, we explored the extent to which carers of people with ID believe that the health care needs of the person they care for are being accommodated by general practice.

Method: Semi-structured interviews were conducted with 25 informal carers to people with ID living in Australia.

Results: Carers of people with ID report that they experience considerable barriers to accessing general practice care on behalf of the people they care for.

Conclusions: Given the ever-increasing number of people with ID now living in the community and their vulnerability to health problems, it is imperative that future research focuses on the development of strategies to overcome the barriers identified in this study.     

Estimation of skeletal muscle mass in patients with spinocerebellar ataxia type 3 and 10

Background: Neurodegenerative diseases may progress to a level in which patients present spontaneous weight loss, resulting in increased falls and functional disabilities when the disease is associated with muscle mass depletion.

Objective: Evaluate the muscle compartment in patients presenting spinocerebellar ataxia (SCA) type 3 and 10.

Methods: Forty-six patients presenting SCA type 3 and 10 were assessed and 76 volunteers were selected to the control group. In order to evaluate the muscle compartment, muscle mass anthropometric measurements were assessed and total skeletal muscle mass calculated through a predictive equation.

Results: Women with SCA3 presented greater weight loss and muscle mass reduction compared to those with SCA10 and the control group. Among the predictive measurements, calf muscle circumference showed a more significant correlation with total skeletal muscle mass (p = 0.718).

Conclusion: Patients presenting both types of ataxia did not show severe depletion in their nutritional status; however, those with SCA3 displayed greater weight loss and muscle mass reduction compared to the SCA10 group.