Barbara Mazer

Predicting ability to drive after stroke

OBJECTIVE To determine the ability of perceptual testing to predict on-road driving outcome in subjects with stroke. STUDY DESIGN Historical cohort study of 84 individuals with stroke who completed both the perceptual testing and the on-road driving evaluation conducted in a driving evaluation service. MEASURES Perceptual tests, such as the Motor Free Visual Perception Test (MVPT) and Trail Making B test, and an on-road driving evaluation. Based on driving behaviors, a pass or fail outcome was determined by the examiners. RESULTS Subjects who passed the on-road evaluation had better average scores on the majority of perceptual tests compared with those who failed. The MVPT was the most predictive of on-road performance (positive predictive value=86.1%; negative predictive value=58.3%). The combination of tests resulting in the most predictive and parsimonious model was the MVPT plus Trail Making B, such that those who scored poorly on both were 22 times more likely to fail the on-road evaluation. CONCLUSION A screening process is useful in identifying persons who are not ready to undergo an on-road driving evaluation.

Analysis of Clinical Features Predicting Etiologic Yield in the Assessment of Global Developmental Delay

OBJECTIVE. Global developmental delay is a common reason for presentation for neurologic evaluation. This study examined the role of clinical features in predicting the identification of an underlying cause for a childs global developmental delay. METHODS. Over a 10-year inclusive interval, the case records of all consecutive children <5 years of age referred to a single ambulatory practice setting for global developmental delay were systematically reviewed. The use of clinical features in predicting the identification of a specific underlying cause for a childs delay was tested using χ2 analysis. RESULTS. A total of 261 patients eventually met criteria for study inclusion. Mean age at initial evaluation was 33.6 months. An underlying cause was found in 98 children. Commonest etiologic groupings were genetic syndrome/chromosomal abnormality, intrapartum asphyxia, cerebral dysgenesis, psychosocial deprivation, and toxin exposure. Factors associated with the ability to eventually identify an underlying cause included female gender (40 of 68 vs 58 of 193), abnormal prenatal/perinatal history (52 of 85 vs 46 of 176), absence of autistic features (85 of 159 vs 13 of 102), presence of microcephaly (26 of 40 vs 72 of 221), abnormal neurologic examination (52 of 71 vs 46 of 190), and dysmorphic features (44 of 84 vs 54 of 177). In 113 children without any abnormal features identified on history or physical examination, routine screening investigations (karyotype, fragile X molecular genotyping, and neuroimaging) revealed an underlying etiology in 18. CONCLUSIONS. Etiologic yield in an unselected series of young children with global developmental delay is close to 40% overall and 55% in the absence of any coexisting autistic features. Clinical features are readily apparent that may enhance an expectation of a successful etiologic search. Screening investigations may yield an underlying cause.

Visual Testing for Readiness to Drive After Stroke: A Multicenter Study

OBJECTIVE The purpose of this study was to determine the ability of a visual-perception assessment tool, the Motor-Free Visual Perception Test, to predict on-road driving outcome in subjects with stroke. DESIGN This was a retrospective study of 269 individuals with stroke who completed visual-perception testing and an on-road driving evaluation. Driving evaluators from six evaluation sites in Canada and the United States participated. Visual-perception was assessed using the Motor-Free Visual Perception Test. Scores range from 0 to 36, with a higher score indicating better visual perception. A structured on-road driving evaluation was performed to determine fitness to drive. Based on driving behaviors, a pass or fail outcome was determined by the examiner. RESULTS The results indicated that, using a score on the Motor-Free Visual Perception Test of < or =30 to indicate poor visual-perception and >30 to indicate good visual perception, the positive predictive value of the Motor-Free Visual Perception Test in identifying those who would fail the on-road test was 60.9% (n = 67/110). The corresponding negative predictive value was 64.2% (n = 102/159). Univariate logistic regression analyses revealed that older age, low Motor-Free Visual Perception Test scores and a right hemisphere lesion contributed significantly to identifying those who failed the on-road test. CONCLUSIONS The predictive validity of the Motor-Free Visual Perception Test is not sufficiently high to warrant its use as the sole screening tool in identifying those who are unfit to undergo an on-road evaluation.

Predictive validity of Prechtl's Method on the Qualitative Assessment of General Movements: a systematic review of the evidence.

Aim  The aim of this systematic review was to examine the evidence for the predictive validity of Prechtl’s Method on the Qualitative Assessment of General Movements (GMsA) with respect to neurodevelopmental outcomes.

Actual vs. best practices for young children with cerebral palsy: A survey of paediatric occupational therapists and physical therapists in Quebec, Canada

Rationale: Cerebral palsy (CP) constitutes a substantial portion of paediatric rehabilitation, yet little is known regarding actual occupational therapy (OT) and physical therapy (PT) practices. This study describes OT and PT practices for young children with CP in Quebec, Canada. Methods: This was a cross-sectional survey. All eligible, consenting paediatric occupational therapists (OTs) and physical therapists (PTs) were interviewed using a structured telephone interview based on vignettes of two typical children with CP at two age points—18 months and 4 years. Reported practices were grouped according to the International Classification of Functioning, Disability and Health (ICF). Results: 91.9% of PTs (n = 62; 83.8% participation rate) and 67.1% of OTs (n = 85; 91.4% participation rate) reported using at least one standardized paediatric assessment. OT and PT interventions focused primarily on impairments and primary function (such as gait function and activities of daily living). Both professions gave little attention to interventions related to play and recreation/leisure. Clinicians reported the need for more training and education specific to CP and to the use of research findings in clinical practice. Conclusion: Wide variations and gaps were identified in clinicians’ responses suggesting the need for a basic standard of OT and PT management as well as strategies to encourage knowledge dissemination regarding current best practice. Fundamento: La parálisis cerebral (PC) constituye una parte sustancial de la rehabilitación pediátrica, sin embargo se sabe poco acerca del ejercicio actual de la terapia física (TF) y de la terapia ocupacional (TO). Este estudio describe la aplicación de la TF y de la TO a niños pequeños con PC en Quebec, Canadá. Métodos: Este fue un estudio prospectivo, de corte transversal. Todos los terapistas físicos (TF) y los terapistas ocupacionales (TO) pediátricos elegibles, previo consentimiento, fueron entrevistados utilizando un cuestionario telefónico estructurado basado en viñetas de dos niños típicos con PC a dos edades - 18 meses y 4 años de edad. Las prácticas reportadas fueron agrupadas en base a la Clasificación Internacional de Funcionalidad, discapacidad y salud (CIF). Resultados: 91.9% de los TFs (n = 62; 83.8% rango de participación) y 67.1% de los TOs (n = 85; 91.4% rango de participación) reportaron usar por lo menos una forma de evaluación pediátrica estandarizada. Las intervenciones de TF y TO se enfocaron principalmente en las discapacidades y en las funciones primarias (tales como la marcha y las actividades de la vida diaria). Ambas profesiones prestaron poca atención a las intervenciones relacionadas al juego y a las actividades recreativas y de entretenimiento. Los médicos manifestaron la necesidad de un mayor entrenamiento y educación específicos a la PC y la aplicación de los hallazgos de las investigaciones en la práctica clínica. Conclusión: Se identificaron amplias variaciones y un desconocimiento en las respuestas de los médicos, sugiriendo esto la necesidad de un manejo estándar básico de TF y TO, así como estrategias que impulsen la diseminación del conocimiento en relación a una mejor práctica. Palabras clave: Terapia ocupacional, terapia física, parálisis infantil, Clasificación Internacional de Funcionalidad, tratamiento basado en la evidencia, rehabilitación pediátrica

What place for ethics? An overview of ethics teaching in occupational therapy and physiotherapy programs in Canada

Abstract Purpose: The recent introduction of master’s level curricula for Occupational Therapy (OT) and Physiotherapy (PT) training programs in Canada raises both challenges and opportunities to address ethical issues during professional training. This study evaluated the inclusion of ethics content in course descriptions and course calendars in order to develop a preliminary understanding of how rehabilitation ethics is taught in Canadian universities. Method: We reviewed the ethics content in the online curricula of 27 Canadian rehabilitation programs (OT & PT). Courses addressing ethical issues were identified through keyword searches, and were then subjected to both quantitative and textual descriptive analyses. Results: The mean proportion of credits allotted to courses that included ethics terminology was 5.9% (SD = 1.4) for OT and 6.5% (SD = 4.8) for PT (p = 0.69). The most common terms in the course descriptions were “ethics/ethical” followed by “legal”, “professionalism”, “deontology” and “regulatory”. Textual analysis revealed eight course topics, the most frequent being: standards of practice, ethical decision-making, clinical courses and mediation/communication. Conclusion: With the growing recognition and status of OT and PT in the healthcare system, and corresponding shifts in how professionals are being trained, it is crucial to assess and reflect upon the place accorded to and manner of teaching ethics. Implications for Rehabilitation Ethics training in rehabilitation programs With the evolving recognition of OT and PT professions within the healthcare system, and corresponding shifts in how future professionals are trained, it is crucial to assess the place accorded to teaching ethics. In Canadian OT and PT programs, ethics content is most commonly included in broad courses related to standards of practice and not in specific ethics courses. Careful attention is needed to ensure that OT and PT students receive sufficient ethics training that is well aligned with their future practice context to support them to competently address the ethical issues that they will encounter in clinical practice. In addition, OT and PT professionals would benefit from the development of continuing education activities that target ethical issues relevant to their practice.

Effect of gestational age on neurological functioning of the very low-birthweight infant at 40 weeks

A cohort of 97 very low‐birthweight infants who had had prolonged care in two neonatal units was identified prospectively and subdivided into three groups according to gestational age at birth (23 to 27, 28 to 31 and 32 to 36 weeks). The neurological status of the three groups was compared at 40 weeks gestational age. The effects of various medical complications also were analyzed by comparing the neurological performances at term of (1) nine ‘at‐risk’ fullterm infants with ‘complicateď’ preterm infants, and (2) 15 ‘normaL’ fullterm infants with ‘healthy’ preterm infants. After controlling for medical complications, no significant difference in neurological scores was found between the three preterm groups, nor between the preterm groups and the ‘at‐risk’ fullterm group. However, ‘healthy’ preterm infants had significantly lower scores than fullterm ‘normaL’ infants. Item analyses also showed significant differences between the three preterm groups; those with gestations between 23 and 27 weeks were more likely to exhibit tremors than the other two groups; and those with gestations of 32 to 36 weeks were more likely to have opisthotonic postures, overshooting movements, hypertonus and exaggerated responses.

Prediction of Motor and Functional Outcomes in Infants Born Preterm Assessed at Term

Purpose: To compare 3 different assessment approaches at term to infants born preterm to predict motor and functional outcomes at 12 months adjusted age. Methods: Infants (n = 100) born at less than 32 weeks postconceptional age were assessed at term using the General Movements Assessment, Einstein Neonatal Neurobehavioral Assessment Scales, Test of Infant Motor Performance, and at 12 months adjusted age using the Alberta Infant Motor Scales, Peabody Developmental Motor Scales-2, Vineland Adaptive Behavior Scales-Daily Living Skills, and Battelle Developmental Inventory. Results: The General Movements Assessment (r2 = 0.04; p = 0.05) and the Test of Infant Motor Performance (r2 = 0.05; p = 0.04) predicted outcomes on the Peabody Developmental Motor Scales-2. The Test of Infant Motor Performance predicted outcomes on the Alberta Infant Motor Scales (r2 = 0.05; p = 0.04) and Vineland Adaptive Behavior Scales-Daily Living Skills (odds ratio: 0.93). Delays in functional performance were found. Conclusions: Neonatal tests at term explained a small but significant proportion of the variance in gross motor and daily living skills at 12 months adjusted age.

The relationship between cognitive performance, perceptions of driving comfort and abilities, and self-reported driving restrictions among healthy older drivers

The objective of the present study was to examine the relationship between cognitive performance, driver perceptions and self-reported driving restrictions. A cross-sectional analysis was conducted on baseline data from Candrive II, a five-year prospective cohort study of 928 older drivers aged 70-94 years from seven cities. Cognitive performance was assessed using the Montreal Cognitive Assessment (MoCA) as well as the Trail Making Test, parts A and B. Driver perceptions were assessed using the Day and Night Driving Comfort Scales and the Perceived Driving Abilities scale, while driving practices were captured by the Situational Driving Frequency and Avoidance scales, as well as the Driving Habits and Intentions Questionnaire. The baseline data indicates this cohort is largely a cognitively intact group. Univariate regression analysis showed that longer Trails A and B completion times were significantly, but only modestly associated with reduced driving frequency and perceived driving abilities and comfort, as well as a significant tendency to avoid more difficult driving situations (all p<.05). Most of these associations persisted after adjusting for age and sex, as well as indicators of health, vision, mood and physical functioning. Exceptions were Trails A and B completion times and situational driving frequency, as well as time to complete Trails B and current driving restrictions. After adjusting for the confounding factors, the total MoCA score was not associated with any of the driving measure scores while the number of errors on Trails A was significantly associated only with situational driving frequency and number of errors on Trails B was significantly associated only with situational driving avoidance. Prospective follow-up will permit examination of whether baseline cognition or changes in cognition are associated with changes in driver perceptions, actual driving restrictions and on-road driving outcomes (e.g., crashes, violations) over time.

Eliciting Information on Differential Sensation of Heat in Those With and Without Poststroke Aphasia Using a Visual Analogue Scale

BACKGROUND AND PURPOSE Aphasia can result in an inability to communicate the presence, location, or intensity of pain. Although visual analogue scales (VASs) exist, it is unknown whether they are useful in assessing pain in individuals with aphasia. The objective was to determine whether those with poststroke aphasia could respond differentially to thermal stimuli of varying intensities using a standardized VAS. METHODS Five groups of participants were assessed: those without stroke, those with stroke but without aphasia, and 3 groups with varying degrees of aphasia. A 10-cm vertical VAS was used to measure responses to varying thermal intensities delivered on the participants forearm. RESULTS Across all 5 groups, a similar proportion demonstrated ability to discriminate between 2 temperatures (chi2=1.899; P=0.75). When presented with 4 temperatures, all groups performed more poorly, yet with similar success rates across groups (chi2=0.1267; P=0.88). The repeated-measures ANOVA revealed no effect of group but a significant effect of temperature (P<0.0001). CONCLUSIONS A VAS may be useful in clinical identification of differing intensities of stimuli in a substantial proportion of those with aphasia.