Limited access to multiple sclerosis (MS)-focused care in rural areas can decrease the quality of life in individuals living with MS while influencing both physical and mental health.

The objectives of this research were to compare demographic and clinical outcomes in participants with MS who reside within urban, semi-urban and rural settings within Newfoundland and Labrador. All participants were assessed by an MS neurologist, and data collection included participants’ clinical history, date of diagnosis, disease-modifying therapy (DMT) use, measures of disability, fatigue, pain, heat sensitivity, depression, anxiety and disease activity.

Overall, no demographic differences were observed between rural and urban areas. Furthermore, the categorization of primary residence did not demonstrate any differences in physical disability or indicators of disease activity. A significantly higher percentage of participants were prescribed platform or high-efficacy DMTs in semi-urban areas; a higher percentage of participants in urban and rural areas were prescribed moderate-efficacy DMTs. Compared to depression, anxiety was more prevalent within the entire cohort. Comparable levels of anxiety were measured across all areas, yet individuals in rural settings experienced greater levels of depression. Individuals living with MS in either an urban or rural setting demonstrated clinical similarities, which were relatively equally managed by DMTs.

Despite greater levels of depression in rural areas, the results of this study highlight that an overall comparable level and continuity of care is provided to individuals living with MS within rural and urban Newfoundland and Labrador.

The outcomes of radiosurgery for trigeminal neuralgia (TN) in patients with multiple sclerosis (MS) are not as extensively assessed as those for idiopathic or classical TN cases.

Evaluate the safety and efficacy of radiosurgery for TN in MS patients and identify potential predictors of successful outcomes.

A retrospective single-institution cohort study with patients treated between 2009 and 2022 was performed. Fifty patients were included, and a total of 68 radiosurgical interventions were delivered. Outcomes included the maintenance of pain relief assessed using Kaplan–Meier curves and treatment-related complications. Cox regression analyses were used to identify potential predictors of better pain relief.

Following the first radiosurgical treatments, the initial pain relief rate was 86% after a median latency period of 14 days. Adequate pain relief rates at 6, 12, 36 and 60 months were 86%, 52%, 35% and 24%, respectively. Adequate pain relief was sustained for an actuarial median of 12.7 months. After initial relief, pain recurrence occurred in 68% of patients. No statistical difference was seen in the duration of pain relief after initial or repeat radiosurgery (p = 0.368). The most frequent complication was facial hypesthesia (Barrow Neurological Institute facial hypesthesia scale grade II: 10%; III: 6%; IV: 0%). Ipsilateral vascular compression was predictive of better efficacy (p = 0.024).

Radiosurgery for TN in patients with MS appears to be safe and to provide effective pain relief. Notably, radiological identification of vascular compression may predict more sustained pain relief.

The economic burden of migraine is substantial; determining the cost that migraine imposes on the Canadian healthcare system is needed.

Administrative data were used to identify adults living with migraine, including chronic migraine (CM) and episodic migraine (EM), and matched controls in Alberta, Canada. One- and two-part generalized linear models with gamma distribution were used to estimate direct healthcare costs (hospitalization, emergency department, ambulatory care, physician visit, prescription medication; reported in 2022 Canadian dollars) of migraine during a 1-year observation period (2017/2018).

The fully adjusted total mean healthcare cost of migraine (n = 100,502) was 1.5 times (cost ratio: 1.53 [95% CI: 1.50, 1.55]) higher versus matched controls (n = 301,506), with a predicted annual incremental cost of $2,806 (95% CI: $2,664, $2,948) per person. The predicted annual incremental cost of CM and EM was $5,059 (95% CI: $4,836, $5,283) and $669 (95% CI: $512, $827) per person, respectively, compared with matched controls. All healthcare cost categories were greater for migraine (overall, CM and EM) compared with matched controls, with prescription medication the primary cost driver (incremental cost – overall: $1,381 [95% CI: $1,234, $1,529]; CM: $2,057 [95% CI: %1,891, $2,223]; EM: $414 [95% CI: $245, $583] per person per year).

Persons living with migraine had greater direct healthcare costs than those without. With an estimated migraine prevalence of 8.3%–10.2%, this condition may account for an additional $1.05–1.29 billion in healthcare costs per year in Alberta. Strategies to prevent and effectively manage migraine and associated healthcare costs are needed.

Endothelial cell activation seems to be an important process in the multifactorial pathophysiology of delayed cerebral ischemia (DCI) and subsequent poor clinical outcome after aneurysmal subarachnoid hemorrhage (aSAH).

To assess the association between biomarker levels of endothelial activation and the occurrence of DCI and poor clinical outcome six months after aSAH.

Between October 2018 and November 2020, 75 aSAH patients were included. Blood samples were taken on admission, days 3–5 and days 9–11 after aSAH. Ten patients with unruptured intracranial aneurysms served as controls. Poor outcome was assessed at six months, defined by a modified Rankin Scale score of 4–6. The cohort was dichotomized into patients with and without DCI and good and poor outcomes. Biomarker levels of von Willebrand factor (vWF), E-selectin, thrombomodulin, syndecan-1 and matrix metalloproteinase (MMP-9) were analyzed and compared between groups by a T-test or Mann–Whitney U test, depending on the normality of the data.

Twelve (16.0%) patients developed DCI, and 39 (41.9%) patients had poor outcomes at six months post-aSAH. None of the biomarkers showed significant differences between patients with and without DCI. vWF and syndecan-1 were elevated on admission and on days 9–11 in patients with poor outcomes (p < 0.05 and p = 0.02, respectively).

Levels of vWF, E-selectin, thrombomodulin, syndecan-1 and MMP-9 were not associated with the occurrence of DCI, although higher levels of vWF and syndecan-1 were associated with poor outcome at six months. Further research is needed to establish the role of these biomarkers in aSAH patients.

A comprehensive understanding of the burden of migraine in Canada is needed to inform clinicians, clinical care and policymakers. This study assessed real-world healthcare resource utilization (HCRU) and costs of patients with episodic migraine (EM) and chronic migraine (CM) in Ontario, Canada.

This study utilized administrative databases from the Institute for Clinical Evaluative Sciences (ICES) containing publicly funded health services records for the covered population of Ontario. Patients ≥26 years old with a migraine diagnosis between January 2013 and December 2017 were selected. EM and CM were inferred in eligible patients based on previously studied predictors. Cases were matched with non-migraine controls and followed for two years.

452,431 patients with migraine, 117,655 patients inferred with EM and 24,763 patients inferred with CM were selected and matched to controls. 39.4% of the inferred EM and 69.3% of the inferred CM subpopulations had ≥1 claims of preventive medications. Migraine-specific acute medications were underutilized (EM: 1.0%, CM: 3.3%), and high proportions of patients utilized opioids (EM: 38.8%, CM: 64.9%). Mean all-cause two-year costs per patient for the overall migraine population and inferred EM and CM subpopulations were $7,486 (CAD), $11,908 (CAD) and $24,716 (CAD), respectively. The two-year incremental all-cause cost of migraine to the Ontario public payer was $1.1 billion (CAD).

Migraine poses a significant unmet need and burden on the Canadian healthcare system. These results demonstrate a gap between real-world care and recommendations from treatment guidelines, emphasizing the need for improved awareness and expanded access to more effective treatment options.

Stroke clinical registries are critical for systems planning, quality improvement, advocacy and informing policy. We describe the methodology and evolution of the Registry of the Canadian Stroke Network/Ontario Stroke Registry in Canada.

At the launch of the registry in 2001, trained coordinators prospectively identified patients with acute stroke or transient ischemic attack (TIA) at comprehensive stroke centers across Canada and obtained consent for registry participation and follow-up interviews. From 2003 onward, patients were identified from administrative databases, and consent was waived for data collection on a sample of eligible patients across all hospitals in Ontario and in one site in Nova Scotia. In the most recent data collection cycle, consecutive eligible patients were included across Ontario, but patients with TIA and those seen in the emergency department without admission were excluded.

Between 2001 and 2013, the registry included 110,088 patients. Only 1,237 patients had follow-up interviews, but administrative data linkages allowed for indefinite follow-up of deaths and other measures of health services utilization. After a hiatus, the registry resumed data collection in 2019, with 13,828 charts abstracted to date with a focus on intracranial vascular imaging, identification of intracranial occlusions and treatment with thrombectomy.

The Registry of the Canadian Stroke Network/Ontario Stroke Registry is a large population-based clinical database that has evolved throughout the last two decades to meet contemporary stroke needs. Registry data have been used to monitor stroke quality of care and conduct outcomes research to inform policy.

Acute stroke treatments are highly time-sensitive, with geographical disparities affecting access to care. This study examined the impact of driving distance to the nearest comprehensive stroke center (CSC) and rurality on the use of thrombectomy or thrombolysis in Ontario, Canada.

This retrospective cohort study used administrative data to identify adults hospitalized with acute ischemic stroke between 2017 and 2022. Driving time from patients’ residences to the nearest CSC was calculated using the Ontario Road Network File and postal codes. Rurality was categorized using postal codes. Multivariable logistic regression, adjusted for baseline differences, estimated the association between driving distance and treatment with thrombectomy (primary outcome) or thrombolysis (secondary outcome). Driving time was modeled as a continuous variable using restricted cubic splines.

Data from 57,678 patients (median age 74 years, IQR 64–83) were analyzed. Increased driving time was negatively associated with thrombectomy in a nonlinear fashion. Patients living 120 minutes from a CSC were 20% less likely to receive thrombectomy (adjusted odds ratio [aOR] 0.80, 95% CI 0.62–1.04), and those 240 minutes away were 60% less likely (aOR 0.41, 95% CI 0.28–0.60). Driving time did not affect thrombolysis rates, even at 240 minutes (aOR 1.0, 95% CI 0.70–1.42). Thrombectomy use was similar in medium urban areas (aOR 0.80, 95% CI 0.56–1.16) and small towns (aOR 0.78, 95% CI 0.57–1.06) compared to large urban areas.

Thrombolysis access is equitable across Ontario, but thrombectomy access decreases with increased driving distance to CSCs. A multifaceted approach, combining healthcare policy innovation and infrastructure development, is necessary for equitable thrombectomy delivery.

Secondary stroke prevention can reduce subsequent vascular events, mortality and accumulation of disability. Current rates of adherence to secondary stroke prevention indicators are unknown. Our aim was to evaluate secondary stroke prevention care in Ontario, Canada.

A retrospective cohort study using health administrative databases included all adults discharged alive following an ischemic stroke from April 2010 to March 2019. Indicators of secondary stroke prevention, including laboratory testing, physician visits and receipt of routine influenza vaccinations, were evaluated among survivors in the one year following a stroke event. The use of medication was also assessed among individuals over the age of 65 years and within subgroups of stroke survivors with diabetes and atrial fibrillation.

After exclusions, 54,712 individuals (mean age 68.4 years, 45.7% female) survived at least one year following their stroke event. In the 90 days following discharge from the hospital, most individuals (92.8%) were seen by a general practitioner, while 26.2% visited an emergency department. Within the year following discharge, 66.2% and 61.4% were tested for low-density lipoprotein and glycated hemoglobin, respectively, and 39.6% received an influenza vaccine. Among those over the age of 65 years, 85.5% were prescribed a lipid-lowering agent, and 88.7% were prescribed at least one antihypertensive medication. In those with diabetes, 70.3% were prescribed an antihyperglycemic medication, while 84.9% with atrial fibrillation were prescribed an anticoagulant.

Secondary stroke prevention, especially for important laboratory values, remains suboptimal, despite thorough best practice guidelines. Future studies should explore barriers to better secondary stroke care.