The risk of motor vehicle crashes and traffic citations post stroke: a structured review

On-road driving remediation following acquired brain injury: a randomized controlled trial

OBJECTIVE

To investigate the relationship between on-road driving remediation and achieving fitness to drive following acquired brain injury.

DESIGN

Randomized controlled trial.

SETTING

Tertiary hospital outpatient driver assessment and rehabilitation service, Australia.

PARTICIPANTS

Thirty-five participants (54.3% male), aged 18-65 years, 41 days-20 years post-acquired brain injury (including stroke, aneurysm, traumatic brain injury) recommended for on-road driving remediation following occupational therapy driver assessment were randomly assigned to intervention (n = 18) and waitlist control (n = 17) groups.

INTERVENTION

Intervention group received on-road driving remediation delivered by a qualified driving instructor in a dual-control vehicle. The waitlist control group completed a 6 week period of no driving-related remediation.

MAIN MEASURE

Fitness to drive rated following the conduct of an on-road occupational therapy driver assessment with a qualified driving instructor where outcome assessors were blinded to group allocation.

RESULTS

The intervention group were significantly more likely to achieve a fit to drive recommendation than no driving specific intervention (p = 0.003).

CONCLUSION

Following comprehensive assessment, individualized on-road driving remediation programs devised by an occupational therapist with advanced training in driver assessment and rehabilitation and delivered by a qualified driving instructor are significantly associated with achieving fitness to drive after acquired brain injury.

Association of Age and Neurological Severity at Intensive Care Unit Admission With Driving Resumption Within 30 Days of Stroke: A Single-Center Historical Cohort Study

Objectives Guidelines in several countries recommend against driving soon after a stroke; however, some patients resume driving within one month after onset. This study aimed to examine the relationship between neurological and social background factors at intensive care unit (ICU) admission and resumption of motor vehicle driving within 30 days of the first acute stroke/cerebral hemorrhage. Materials and methods Data were extracted from medical records of a single center linked to the National Cerebral and Cardiovascular Center Administration Office for Stroke Data Bank in Japan. The data included age, sex, Japan Coma Scale (JCS), National Institutes of Health Stroke Scale (NIHSS), employment status, family situation, and outcomes of driving resumption in patients with a valid driving license transported to the ICU within 24 hours of stroke onset. Time-to-event analysis was used to explore the associations between these factors and driving resumption, with data censored 30 days from onset. Results In total, 239 patients had complete medical records, of whom 66 resumed driving. A multivariate Cox proportional hazards analysis showed that fewer patients aged ≥65 years resumed driving than those aged <65 years (hazard ratio 0.46; 95% confidence interval: 0.25-0.84; p=0.009). Patients with NIHSS scores ≥5 and JCS scores ≥1 were also less likely to resume driving compared with those with scores <5 (0.22; 0.08-0.56; p=0.008) and 0 (0.13; 0.04-0.37; p<0.001), respectively. Conclusions Age, NIHSS score, and JCS score at ICU admission are independently associated with the likelihood of resuming driving within 30 days of stroke onset. These findings may aid with the provision of support and education to facilitate the efficient resumption of driving after an acute event.

Driving scenarios and environmental settings in simulator-based driving assessment systems for stroke: a systematic review

BACKGROUND

Driving simulators are effective tools to evaluate the driving abilities of patients with stroke. They can introduce various driving scenarios which will greatly benefit both the assessors and drivers. However, there is still no guidelines by which driving scenarios should be introduced in the driving assessment.

OBJECTIVES

We conducted a systematic review to examine the utilization of driving scenarios and environments in the simulator-based driving assessment for patients with stroke.

METHODS

A systematic review was conducted following PRISMA. We searched PubMed, Web of Science, ScienceDirect, ACM Digital Library, and IEEE Xplore Digital Library databases in January and June 2022 to identify eligible articles published since 2010.

RESULTS

Our searches identified 1,614 articles. We included 12 studies that applied driving simulators to assess the driving performance of patients with stroke. The driving scenarios were categorized into three categories - vehicle controls scenarios, hazard perception scenarios, and trajectory planning scenarios - based on a certain set of driving abilities. The most common driving scenarios are simple navigation (n = 8) and emergency stop (n = 8). The most frequently used driving area is urban (n = 9), and a variety of roads and traffic conditions were found in the included studies. Only 2 studies applied weather conditions, such as the clear and sunny condition or the windy condition.

CONCLUSION

It is recommended for future research to consider covering scenarios from the aforementioned three categories and further investigate the benefits of introducing complex weather conditions and localized traffic conditions in the driving assessment.

The Clinical Usefulness of the Practice Resource for Driving after Stroke (PReDAS)

Occupational Therapists (OTs) have identified a critical need for organized, evidence-based resources to approach driving post-stroke. The Practice Resource for Driving After Stroke (PReDAS) is a resource to support the clinical reasoning and practice of health professionals for addressing driving in acute stroke care. The purpose of this pilot study is to evaluate the usefulness of the PReDAS to support clinician and patient decision-making about return to driving after stroke/Transient Ischemic Attack (TIA) in the acute care hospital setting. OTs, physicians, and patients diagnosed with stroke/TIA were surveyed regarding their experience with the PReDAS in acute care. Patient participants were also contacted for a follow-up questionnaire. OT, physician and patient stakeholders reported the PReDAS was useful to support decision-making for driving. The majority of patients recalled information provided in acute care and abstained from driving as advised. This study provides preliminary support for the clinical usefulness of the PReDAS.

Rethinking Driving Against Medical Advice: The Situated Nature of Driving After Stroke

Background: As stroke can result in functional impairments that impact driving ability, many jurisdictions mandate a 30-day period of driving restriction post-stroke. However, between 26% and 38% of clients drive against medical advice during this period. Purpose: Informed by critical reflexivity of the literature and the first author's practice, this critical analysis paper (1) explicates and critiques how adherence to guidelines regarding driving after stroke in the first 30 days is conceptualized in individualistic, biomedically centred research and (2) argues for expanded understandings of driving based on a transactional occupational perspective. Key Issues: Individualistic, biomedical perspectives view driving against medical advice as an individually located phenomenon, generating partial understandings and individually focused solutions. Re-conceptualizing driving after stroke as a transactional occupational choice provides a productive basis for understanding and addressing driving within practice and research. Implications: Concepts from occupational science can generate new insights for research and client-centred practice regarding driving following stroke.

Investigating On-Road Lane Maintenance and Speed Regulation in Post-Stroke Driving: A Pilot Case-Control Study

Stroke can adversely affect the coordination and judgement of drivers due to executive dysfunction, which is relatively common in the post-stroke population but often undetected. Quantitatively examining vehicle control performance in post-stroke driving becomes essential to inspect whether and where post-stroke older drivers are risky. To date, it is unclear as to which indicators, such as lane keeping or speed control, can differentiate the driving performance of post-stroke older drivers from that of normal (neurotypical) older drivers. By employing a case-control design using advanced vehicle movement tracking and analysis technology, this pilot study aimed to compare the variations in driving trajectory, lane keeping and speed control between the two groups of older drivers using spatial and statistical techniques. The results showed that the mean standard deviation of lane deviation (SDLD) in post-stroke participants was higher than that of normal participants in complex driving tasks (U-turn and left turn) but almost the same in simple driving tasks (straight line sections). No statistically significant differences were found in the speed control performance. The findings indicate that, although older drivers can still drive as they need to after a stroke, the decline in cognitive abilities still imposes a higher cognitive workload and more effort for post-stroke older drivers. Future studies can investigate post-stroke adults' driving behaviour at more challenging driving scenarios or design driving intervention programs to improve their executive function in driving.

A Systematic Review Examining Associations between Cardiovascular Conditions and Driving Outcomes among Older Drivers

There is a vast literature on stroke as a cardiovascular disease and driving outcomes, however little is known about other cardiovascular conditions and driving. The purpose of this review is to examine the literature for studies assessing the effect of non-stroke, vascular conditions on daily driving, reported crash risk and driving decline in older adult drivers as captured by naturalistic methodologies. A systematic review of Embase, Ovid and Scopus Plus examined articles on driving and vascular conditions among older adults. A search yielded 443 articles and, following two screenings, no articles remained that focused on non-stroke, vascular conditions and naturalistic driving. As a result, this review examined non-stroke, vascular conditions in nine driving studies of older adults that used road testing, driving simulators and self-report measures. These studies fell into three categories—heart failure, vascular dementia and white matter hyperintensities/leukoaraiosis. The combined findings of the studies suggest that heart failure, vascular dementia and white matter hyperintensities (WMH) negatively impact driving performance and contribute to driving cessation among older adults. Future research should examine cardiovascular risk factors like hypertension, hypercholesterolemia, myocardial infraction or atherosclerosis using naturalistic driving measurement, as well as traditional measures, in order to more fully characterize how these conditions impact older adult driving.

A systematic review of the risk of motor vehicle collision after stroke or transient ischemic attack

BACKGROUND

Returning to driving after stroke is one of the key goals in stroke rehabilitation, and fitness to drive guidelines must be informed by evidence pertaining to risk of motor vehicle collision (MVC) in this population.

OBJECTIVES

The purpose of the present study was to determine whether stroke and/or transient ischemic attack (TIA) are associated with an increased MVC risk.

METHODS

We searched MEDLINE, CINAHL, EMBASE, PsycINFO, and TRID through December 2016. Pairs of reviewers came to consensus on inclusion, based on an iterative review of abstracts and full-text manuscripts, on data extraction, and on the quality of evidence.

RESULTS

Reviewers identified 5,605 citations, and 12 articles met inclusion criteria. Only one of three case-control studies showed an association between stroke and MVC (OR 1.9, 95% CI 1.0-3.9). Of five cohort reports, only one study, limited to self-report, found an increased risk of MVC associated with stroke or TIA (RR 2.71, 95% CI 1.11-6.61). Two of four cross-sectional studies using computerized driving simulators identified a more than two-fold risk of MVCs among participants with stroke compared with controls. The difference in one of the studies was restricted to those with middle cerebral artery stroke.

CONCLUSIONS

The evidence does not support a robust increase in risk of MVCs. While stroke clearly prevents some patients from driving at all and impairs driving performance in others, individualized assessment and clinical judgment must continue to be used in assessing and advising those stroke patients who return to driving about their MVC risk.

Increased Risk of Traffic Injury After a Cerebrovascular Event

Background and Purpose- We aimed to determine the long-term risks of a motor vehicle collision after a cerebrovascular event and whether the risks were similar after left- or right-hemispheric events. Methods- We used a population-based registry to identify patients diagnosed with a transient ischemic attack or stroke (hemorrhagic or ischemic) between 2003 and 2013 in Ontario, Canada. Hemispheric laterality was determined using radiological and clinical findings. We identified subsequent serious injuries involving the patient as a driver using linked administrative data. Secondary outcomes included serious injuries involving the patient as a pedestrian, as a passenger, or other traumatic events (fall, fracture, ankle sprain). We used proportional hazard models accounting for death as a competing risk to test the association of hemispheric laterality and outcomes with and without adjustment for age, sex, discharge modified Rankin Scale score, home location, and prior driving record. Patients were followed through to 2017. Results- Among 26 144 patients with hemispheric cerebrovascular events, 377 subsequent serious traffic injuries as a driver (2.2 per 1000 person-year) were identified over a median follow-up of 6.4 person-years. The rate did not differ by laterality (adjusted hazard ratio, 1.00; 95% CI, 0.82-1.23). The risk of a serious traffic injury as a pedestrian was significantly higher after a right-sided than left-sided event (adjusted hazard ratio, 1.27; 95% CI, 1.02-1.58). Subsequent risks for other traumatic injuries did not differ by laterality of cerebrovascular event. Conclusions- The risk of a serious traffic injury as a pedestrian is substantially higher after a right-hemispheric cerebrovascular event compared with a left-sided event. Walking should be promoted for exercise in survivors of a stroke or transient ischemic attack, but these vulnerable road users may benefit from additional poststroke rehabilitation to optimize safety.

Optimising the mandatory reporting process for drivers admitted to an inpatient stroke rehabilitation unit

Ontario physicians are legally obligated to report patients who may be medically unfit to drive to the Ministry of Transportation of Ontario (MTO). Currently at Toronto Rehabilitation Institute (TRI), there are no standardised processes for MTO reporting, resulting in inconsistent communication regarding driving with patients and between healthcare providers, redundant assessments and ultimately reduced patient satisfaction. TRI received 10 patient complaints regarding the driving reporting process in the 5 years prior to this project and a large number of patients were not being reported appropriately.

The project aim was to use Lean Methods to achieve 100% reporting and optimise communication and education of drivers admitted to a 23-bed inpatient stroke rehabilitation unit. Interventions included process mapping, identification of wasteful steps and implementation of a standard work. Chart audits before and after implementation were performed.

Value stream process mapping identified inconsistent reporting procedures and lack of use of the government-issued driver reporting form. Following implementation of standard work processes, use of the MTO Medical Conditions Report Form increased from 0% to 100%. Indication of whether drivers were reported to the MTO in Physical Medicine & Rehabilitation consultation notes increased from 50% to 91%. Identifying reported drivers in the discharge summary, of which patients receive a copy at the time of discharge, increased from 0% to 90%. Physician satisfaction with the new standard work process was qualitatively assessed to be high, with no negative impacts reported.

Lean methodology was effective for increasing the usage of the MTO Medical Conditions Report Form, documenting driver status in the initial Physical Medicine & Rehabilitation consultation and indicating MTO reporting status in the discharge summary.

Communication between healthcare providers regarding patients’ driving status has been successfully standardised, resulting in improved coordination of care and a reduction in patient complaints to zero in the 14 months since implementation.

A Case-Control Study Investigating Simulated Driving Errors in Ischemic Stroke and Subarachnoid Hemorrhage

Background

Stroke can affect a variety of cognitive, perceptual, and motor abilities that are important for safe driving. Results of studies assessing post-stroke driving ability are quite variable in the areas and degree of driving impairment among patients. This highlights the need to consider clinical characteristics, including stroke subtype, when assessing driving performance.

Methods

We compared the simulated driving performance of 30 chronic stroke patients (>3 months), including 15 patients with ischemic stroke (IS) and 15 patients with subarachnoid hemorrhage (SAH), and 20 age-matched controls. A preliminary analysis was performed, subdividing IS patients into right (n = 8) and left (n = 6) hemispheric lesions and SAH patients into middle cerebral artery (MCA, n = 5) and anterior communicating artery (n = 6) territory. A secondary analysis was conducted to investigate the cognitive correlates of driving.

Results

Nine patients (30%) exhibited impaired simulated driving performance, including four patients with IS (26.7%) and five patients with SAH (33.3%). Both patients with IS (2.3 vs. 0.3, U = 76, p < 0.05) and SAH (1.5 vs. 0.3, U = 45, p < 0.001) exhibited difficulty with lane maintenance (% distance out of lane) compared to controls. In addition, patients with IS exhibited difficulty with speed maintenance (% distance over speed limit; 8.9 vs. 4.1, U = 81, p < 0.05), whereas SAH patients exhibited difficulty with turning performance (total turning errors; 5.4 vs. 1.6, U = 39.5, p < 0.001). The Trail Making Test (TMT) and Useful Field of View test were significantly associated with lane maintenance among patients with IS (r_s > 0.6, p < 0.05). No cognitive tests showed utility among patients with SAH.

Conclusion

Both IS and SAH exhibited difficulty with lane maintenance. Patients with IS additionally exhibited difficulty with speed maintenance, whereas SAH patients exhibited difficulty with turning performance. Current results support the importance of differentiating between stroke subtypes and considering other important clinical characteristics (e.g., side of lesion, vascular territory) when assessing driving performance and reinforce the importance of physicians discussing driving safety with patients after stroke.

Assessing Cognitive Ability and Simulator-Based Driving Performance in Poststroke Adults

Driving is an important activity of daily living, which is increasingly relied upon as the population ages. It has been well-established that cognitive processes decline following a stroke and these processes may influence driving performance. There is much debate on the use of off-road neurological assessments and driving simulators as tools to predict driving performance; however, the majority of research uses unlicensed poststroke drivers, making the comparability of poststroke adults to that of a control group difficult. It stands to reason that in order to determine whether simulators and cognitive assessments can accurately assess driving performance, the baseline should be set by licenced drivers. Therefore, the aim of this study was to assess differences in cognitive ability and driving simulator performance in licensed community-dwelling poststroke drivers and controls. Two groups of licensed drivers (37 poststroke and 43 controls) were assessed using several cognitive tasks and using a driving simulator. The poststroke adults exhibited poorer cognitive ability; however, there were no differences in simulator performance between groups except that the poststroke drivers demonstrated less variability in driver headway. The application of these results as a prescreening toolbox for poststroke drivers is discussed.

Dementia and Traffic Accidents: A Danish Register-Based Cohort Study

Background

As a consequence of a rapid growth of an ageing population, more people with dementia are expected on the roads. Little is known about whether these people are at increased risk of road traffic-related accidents.

Objective

Our study aims to investigate the risk of road traffic-related accidents for people aged 65 years or older with a diagnosis of dementia in Denmark.

Methods

We will conduct a nationwide population-based cohort study consisting of Danish people aged 65 or older living in Denmark as of January 1, 2008. The cohort is followed for 7 years (2008-2014). Individual’s personal data are available in Danish registers and can be linked using a unique personal identification number. A person is identified with dementia if the person meets at least one of the following criteria: (1) a diagnosis of the disease in the Danish National Patient Register or in the Danish Psychiatric Central Research Register, and/or (2) at least one dementia diagnosis-related drug prescription registration in the Danish National Prescription Registry. Police-, hospital-, and emergency room-reported road traffic-related accidents occurred within the study follow-up are defined as the study outcome. Cox proportional hazard regression models are used for the main analysis.

Results

Our study protocol has 3 phases including data collection, data analysis, and reporting. The first phase of register-based data collection of 853,228 individual’s personal information was completed in August, 2016. The next phase is data analysis, which is expected to be finished before December 2016, and thereafter writing publications based on the findings. The study started in January 2016 and will end in December 2018.

Discussion

This study covers the entire elderly population of Denmark, and thereby will avoid selection bias due to nonparticipation and loss to follow-up. Furthermore, this ensures that the study results are reliable and generalizable. However, underreporting of traffic-related accidents may occur, which will limit estimation of absolute risks.

Comparison of foot pedal reaction time among patients with right or left hemiplegia and able-bodied controls

BACKGROUND

Although inpatient stroke rehabilitation provides clinicians with the opportunity to prepare patients for continuation of prestroke activities, little is known about the patients' ability to safely resume driving at the point of discharge to the community.

OBJECTIVE

To compare foot pedal response times of 20 stroke patients with right hemiplegia (RH) or left hemiplegia (LH) and 10 controls.

METHODS

A cross-sectional design was used. Response times were measured using 3 foot pedal operation techniques: (1) right-sided accelerator with right leg operating accelerator and brake, (2) right-sided accelerator with left leg operating accelerator and brake, and (3) left-sided accelerator with left leg operating accelerator and brake. Outcomes included reaction time (RT), movement time (MT), and total response time (TRT).

RESULTS

Controls demonstrated faster RT than patients with RH (263 vs 348 ms; P < .001) or LH (316 ms; P < .05) for all conditions, as well as faster MT than patients with RH (P < .05 for all) but not LH when using the right leg (258 vs 251 ms; P = .82). Controls demonstrated faster TRT than patients with RH (P < .001 for all) but not LH when using the right leg (515 vs 553 ms; P = .44).

CONCLUSIONS

When using the nonparetic leg, patients with LH had braking response times comparable to controls, but patients with RH demonstrated significant impairment of both the paretic and nonparetic legs.

Using fMRI virtual-reality technology to predict driving ability after brain damage: a preliminary report

The cerebellum, which is important for movement control and planning, is often affected by many neurological conditions. Until now there has been limited information regarding how the function of the cerebellum impacts driving ability. This study used fMRI with an integrated virtual reality driving simulator to determine which aspects of driving performance are related to the cerebellum in healthy drivers (Experiment 1). It also investigated drivers with focal cerebellar lesions to identify how damage to this brain region impairs driving abilities. The results showed that cerebellar functioning is responsible for motor-speed coordination and complex temporal-motor integration necessary to execute driving behaviours. As predicted, drivers with cerebellar damage, showed significantly compromised speed control during basic driving conditions, whereas their ability to perform during interactive driving situations was preserved. New insights into neural mechanisms and brain plasticity regarding driving behaviour are discussed. Strategies in assessing and rehabilitating drivers with related neurological conditions are provided.

Predictors of Poststroke Driving or Riding in Indian Stroke Patients (POINT Study)

Background

There is no information regarding the proportion of stroke patients who drive or ride after a stroke from developing countries.

Aim

We aimed to study the predictors of poststroke driving or riding and its impact on social life in Indian patients. Methods This study was done in the stroke and neurology clinics of Christian Medical College, Ludhiana, from May 1, 2008 to May 31, 2010. Patients were recruited if they had completed ≥1-year follow-up. Subjects were interviewed using a structured questionnaire. Stroke outcome was assessed by using the modified Rankin scale. Outcome was classified as good (modified Rankin scale ≤2) and poor (modified Rankin scale >2).

Results

Two hundred and one patients were interviewed. Mean age was 58·0 ± 13·4 years (median 59 years, range 17–85 years), 139 (69·2%) were men. The mean duration of follow-up was 37·4 ± 29·2 months (range 19–210 months). Out of 201 patients, 132 (65·7%) drove or rode before stroke and among them only 54 (40·9%) returned to driving or riding after stroke [men 53 (98·1%)]. Among the 78 who did not return to driving or riding, 51 (65·4%) had an impact on social life. In the multivariate logistic regression analysis, the predictors of inability to drive were lower education (odds ratio 0·32, confidence interval 0·12–0·89, P = 0·03), unemployment (odds ratio 4·59, confidence interval 1·67–12·6, P = 0·003), and poor outcome (odds ratio 3·97, confidence interval 1·06–14·8, P = 0·04).

Conclusions

Only 40·9% of the patients returned to driving or riding. Lower education, unemployment, and poor recovery were the predictors of inability to drive or ride. Inability to drive had a major impact in their social life.

Support for stroke patients in resumption of driving: patient survey and driving simulator trial

BACKGROUND

Encouragement of stroke patients to resume driving is important to promote their reintegration into the community. Limited rehabilitation has been performed in this regard, owing to lack of specific knowledge on the part of medical staff. To establish an effective support program for stroke patients who wish to resume driving, we propose comprehensive training by medical staff using a driving simulator.

METHODS

A survey of stroke patients admitted to the Tokyo Metropolitan Rehabilitation Hospital was first performed. A questionnaire was sent to 525 patients. Of 218 responses, the answers of 118 patients who had been driving before their stroke were analyzed. More than 80% of stroke patients did not obtain enough information about resuming driving during their hospital stay, and 38.1% of patients would have liked to have had driving training with a simulator. From these results, we set out to determine the effect of driving training using a realistic and technically advanced driving simulator. Twenty-four stroke patients and 20 healthy controls were included in the study.

RESULTS

Repeat training with the simulator resulted in an increased ability to perform braking and an improvement in driving ability. The majority of stroke patients who had the mental and physical ability to drive a car were likely to be assessed as being able to resume driving as a result of the training program.

CONCLUSION

This study indicates that comprehensive support by medical staff and provision of adequate information about resumption of driving and the opportunity for training on a driving simulator are likely to aid resumption of driving by stroke patients, thus enhancing their rehabilitation and social reintegration.