Prediction of rehabilitation induced motor recovery after stroke using a multi-dimensional and multi-modal approach.

Background: Stroke is a debilitating disease affecting millions of people worldwide. Despite the survival rate has significantly increased over the years, many stroke survivors are left with severe impairments impacting their quality of life. Rehabilitation programs have proved to be successful in improving the recovery process. However, a reliable model of sensorimotor recovery and a clear identification of predictive markers of rehabilitation-induced recovery are still needed. This article introduces the cross-modality protocols designed to investigate the rehabilitation treatment's effect in a group of stroke survivors. Methods/design: A total of 75 stroke patients, admitted at the IRCCS San Camillo rehabilitation Hospital in Venice (Italy), will be included in this study. Here, we describe the rehabilitation programs, clinical, neuropsychological, and physiological/imaging [including electroencephalography (EEG), transcranial magnetic stimulation (TMS), and magnetic resonance imaging (MRI) techniques] protocols set up for this study. Blood collection for the characterization of predictive biological biomarkers will also be taken. Measures derived from data acquired will be used as candidate predictors of motor recovery. Discussion/summary: The integration of cutting-edge physiological and imaging techniques, with clinical and cognitive assessment, dose of rehabilitation and biological variables will provide a unique opportunity to define a predictive model of recovery in stroke patients. Taken together, the data acquired in this project will help to define a model of rehabilitation induced sensorimotor recovery, with the final aim of developing personalized treatments promoting the greatest chance of recovery of the compromised functions.

White matter tract disconnection in Gerstmann's syndrome: Insights from a single case study.

It has been suggested that Gerstmann's syndrome is the result of subcortical disconnection rather than emerging from damage of a multifunctional brain region within the parietal lobe. However, patterns of white matter tract disconnection following parietal damage have been barely investigated. This single case study allows characterising Gerstmann's syndrome in terms of disconnected networks. We report the case of a left parietal patient affected by Gerstmann's tetrad: agraphia, acalculia, left/right orientation problems, and finger agnosia. Lesion mapping, atlas-based estimation of probability of disconnection, and DTI-based tractography revealed that the lesion was mainly located in the superior parietal lobule, and it caused disruption of both intraparietal tracts passing through the inferior parietal lobule (e.g., tracts connecting the angular, supramarginal, postcentral gyri, and the superior parietal lobule) and fronto-parietal long tracts (e.g., the superior longitudinal fasciculus). The lesion site appears to be located more superiorly as compared to the cerebral regions shown active by other studies during tasks impaired in the syndrome, and it reached the subcortical area potentially critical in the emergence of the syndrome, as hypothesised in previous studies. Importantly, the reconstruction of tracts connecting regions within the parietal lobe indicates that this critical subcortical area is mainly crossed by white matter tracts connecting the angular gyrus and the superior parietal lobule. Taken together, these findings suggest that this case study might be considered as empirical evidence of Gerstmann's tetrad caused by disconnection of intraparietal white matter tracts.

Effects of cognitive rehabilitation in Parkinson disease: a meta-analysis.

BACKGROUND AND OBJECTIVES: Cognitive symptoms are common in Parkinson's disease (PD) and affect patients' quality of life. Pharmacological interventions often do not improve such deficits that might benefit of cognitive rehabilitation. However, previous meta-analysis on this topic reported inconsistent results. Clarifying the efficacy of cognitive rehabilitation would be pivotal to optimize treatment and reduce care's costs. This meta-analysis aims at determining whether current literature lays in favor of the effectiveness of cognitive rehabilitation in PD and at understanding whether its effect might change depending on the trained cognitive domain. METHODS: We searched online databases for studies concerning cognitive rehabilitation in PD. Fourteen studies encompassing 767 participants were included. Analyses were conducted for each cognitive domain separately, examining several neuropsychological measures for each function. RESULTS: We found that rehabilitation improves global cognition, executive functions, and long- and short-term memory. CONCLUSION: The current body of research indicates that cognitive rehabilitation improves specific cognitive deficits in PD and that it should be tailored on patients' specific impairments. These interventions should be employed considering that not all the cognitive domains might benefit of a cognitive training. Finally, the high heterogeneity among studies suggests the need for more controlled clinical trials.

Efficacy of a Training on Executive Functions in Potentiating Rehabilitation Effects in Stroke Patients.

Cognitive impairment after a stroke has a direct impact on patients' disability. In particular, impairment of Executive Functions (EFs) interferes with re-adaptation to daily life. The aim of this study was to explore whether adding a computer-based training on EFs to an ordinary rehabilitation program, regardless of the specific brain damage and clinical impairment (motor, language, or cognitive), could improve rehabilitation outcomes in patients with stroke. An EF training was designed to have minimal motor and expressive language demands and to be applied to a wide range of clinical conditions. A total of 37 stroke patients were randomly assigned to two groups: a training group, which performed the EF training in addition to the ordinary rehabilitation program (treatment as usual), and a control group, which performed the ordinary rehabilitation exclusively. Both groups were assessed before and after the rehabilitation program on neuropsychological tests covering multiple cognitive domains, and on functional scales (Barthel index, Functional Independence Measure). The results showed that only patients who received the training improved their scores on the Attentional Matrices and Phonemic Fluency tests after the rehabilitation program. Moreover, they showed a greater functional improvement in the Barthel scale as well. These results suggest that combining an EF training with an ordinary rehabilitation program potentiates beneficial effects of the latter, especially in promoting independence in activities of daily living.

Diagnosing psychotic disorders: validity, reliability and applications of the Diagnostic Interview for Psychosis (DIP). Italian version.

AIMS: The Diagnostic Interview for Psychoses (DIP) is a comprehensive interview schedule for psychotic disorders, linked to the OPCRIT diagnostic algorithm, bridging the gap between fully structured, lay-administered schedules and semistructured, psychiatrist-administered interviews. Here we describe the validity, reliability and applications of the Italian version of the DIP. METHODS: The interview was translated into Italian and its content validity tested by back translation. Sixty patients, drawn from among those who contacted the South-Verona Community Mental Health Service, were included in the study. Each patient was first assessed independently by two raters, one of whom conducted the interview, while the other assumed the role of observer. Subsequently (median: 89 days), 44 of these patients were re-interviewed by a third rater, who made an independent assessment. Diagnostic validity was assessed in 18 cases, interviewed with the DIP and using the SCAN as 'gold standard'. RESULTS: The mean duration of the interview was 37 minutes for the inter-rater interviews and 39 minutes for the retest interviews. Good to excellent inter-rater reliability was demonstrated for both ICD-10 and DSM-IV diagnoses, while in the test-retest reliability pairwise agreement was high for half of the items. Diagnostic validity was good, with twelve out of the 18 DIP-OPCRIT diagnoses (67%) matching the SCAN diagnosis. CONCLUSIONS: Overall, the results support the reliability and validity of the Italian translation of the DIP. The Italian version will be useful both in routine practice to establish standard reference diagnoses of psychosis and in the research field, where it can be used by academic researchers in clinical trials and epidemiological studies.

Admission to women's crisis houses or to psychiatric wards: women's pathways to admission.

OBJECTIVE: This study compared the sociodemographic and clinical characteristics and pathways to admission for women admitted to women's crisis houses and to psychiatric hospitals. A women's crisis house is a residential mental health crisis facility for women who would otherwise be considered for voluntary hospital admission. METHODS: A survey of all 388 female admissions to women's crisis houses and psychiatric hospitals in four boroughs of London during a 12-week period in 2006 was conducted with questionnaires administered to key workers involved in the admissions. RESULTS: Pathways to admission were significantly less complex for women admitted to the crisis houses (fewer preadmission contacts with police, emergency departments, and other services). Women admitted to psychiatric wards were more likely to require supervision or observation. A multivariate analysis of data for the 245 voluntary admissions indicated that women admitted to women's crisis houses were significantly less likely to have a care coordinator (odds ratio [OR]=.528) or to have gone to an accident and emergency department (OR=.214) before admission. No other differences were found between the two groups. CONCLUSIONS: Pathways to admission were somewhat different for women admitted to women's crisis houses, but few clinical or sociodemographic differences were found between the two groups. Women's crisis houses may be a viable alternative to traditional wards for voluntary patients not needing intensive supervision and observation. Research should examine whether women's crisis houses are as effective as traditional inpatient services in treating women with acute psychiatric problems.