Canadian Stroke Guidelines: Targets, Timings and Updates

Four and a half hours. That is the IV thrombolysis window in the Canadian Stroke Best Practice Recommendations for acute stroke management, and it is only the first of several thresholds that decide treatment. Blood pressure limits before and after alteplase, thrombectomy selection windows, and rehabilitation dose all change what you do next.

A vague handover is a clinical risk for the same reason. Quote an old edition and you can miss a treatment that is still open, or chase a blood pressure target that belongs to a different stroke type. Every number in the guideline is tied to a phase, a stroke type, and an eligibility check.

The guidance is also uneven in strength. Cognitive screening after stroke is strongly recommended, yet no standard Canada-wide reassessment schedule exists. That gap matters in follow-up: a repeatable cognitive profile is what makes change visible between specialist visits.

Canadian Stroke Guideline Targets at a Glance

Keep this table on one screen. Each row is tied to a phase. A number without its phase is how teams apply the wrong Canadian stroke guidelines to the wrong patient.

Read each group with its phase

Acute rows are about speed and safety around reperfusion. The Canadian Stroke Best Practice Recommendations set pressure below 185/110 mm Hg before alteplase and below 180/105 mm Hg for the first 24 hours afterward. If you aren't giving thrombolysis or thrombectomy, don't chase a normal reading. Lower values above 220/120 mm Hg gradually, about 15% to 25% over 24 hours.

Rehabilitation rows are a dose. Short supervised movement starts first, within 24 to 48 hours once the patient is medically stable. The three hours of task-specific therapy per day, five days a week applies to patients stable enough to take part. For someone still working on sitting balance, how fast to build toward that dose is a judgment call the numbers do not settle for you.

Secondary prevention rows split by subtype. A clinic panel averaging 135/85 mm Hg passes the general ischemic stroke and TIA target yet misses the lacunar systolic goal, the intracerebral hemorrhage goal, and the diabetes goal at the same time. Read each patient's row individually rather than reporting one average.

The cognitive row is the honest gap. Screening after stroke or TIA is expected, measured against pre-stroke status, and there is no standard Canada-wide reassessment interval. That silence leaves the cadence to each team. A repeatable cognitive profile covering attention, memory, executive function, and processing speed, run on a consistent schedule, makes decline or recovery visible between specialist visits instead of letting one screening score stand in for the whole trajectory.

Practical rule: Before you quote any row in a protocol or a note, confirm it comes from the current module for that phase of care.

How the Canadian Guidelines Evolved and Which Edition Applies

"The Canadian guideline" is not one document. A stroke committee rewriting its acute order set this month cannot use a citation that lacks a year and a module name, because each phase of care now lives in its own updated module.

Canada's national framework began with the Canadian Best Practice Recommendations for Stroke Care, released in December 2006 through the Canadian Stroke Strategy. The stroke systems of care module records that the original document was built for Canadian health systems and held 24 recommendations across prevention, acute treatment, rehabilitation, and community reintegration.

How the first edition was built

An interdisciplinary working group reviewed existing guidelines and the research literature, then consulted a national interprofessional consensus panel. The recommendations were updated and expanded in 2008, 2010, 2012, and 2015, then through later cycles beginning in 2016–2018 and 2019–2021. That layered history matters when a local protocol drifts: the citation behind it has usually been revised more than once, and the module it names may no longer exist in that form.

The sharpest break with the early text sits in the acute module. The 2022 seventh-edition acute-stroke update superseded the acute-management recommendations in the 2018 sixth edition, and interim 2025 recommendations widened endovascular thrombectomy guidance again. Modules do not all move at the same speed. Acute care rewrites quickly because trial results push it. Cognitive screening carries a strong recommendation while the guidance stays silent on how often to repeat it, so a repeatable cognitive profile run on the same tasks each visit is one practical way to make change visible between specialist reviews while that gap stays open.

The system around the recommendation

Organized, integrated stroke systems are expected in every Canadian health region. That layer includes rapid emergency response, public awareness, 9-1-1 access, and monitoring that accounts for equity, age, sex, and gender-diverse populations. A current drug policy still fails if the region has no path from the call to imaging.

Citation habit: Write the module name and edition year into every order set and note. "Acute module, seventh edition" survives the next update cycle. "The Canadian guideline" does not.

Check a local citation against the current living module for its phase of care rather than a PDF saved years ago. The Orange Neurosciences site lets visitors register to receive materials and information, including its clinical knowledge summaries, which clinicians can read alongside the living modules. Treat the guidance as a national standard that keeps moving.

Acute Stroke Care From Arrival to Thrombectomy

The acute pathway only works if several teams move at once. Canadian Stroke Best Practice Recommendations offer intravenous thrombolysis with alteplase or tenecteplase to eligible patients with disabling ischemic stroke when treatment can start within 4.5 hours of onset or last known well. Endovascular thrombectomy is generally performed within 6 hours, and selected patients with large-vessel occlusion may qualify up to 24 hours when advanced imaging and clinical criteria support it.

Six steps and why each one exists

1. Activate EMS and lock the clock. Record the last-known-well time at first contact. That time, not the moment the family panics, decides which treatments are still open. A missing clock forces the team to guess.

2. Image the vessels, not only the brain. The usual pair is non-contrast CT of the head plus CT angiography of extracranial and intracranial vessels. The 2025 Canadian interim recommendations make speed and coordinated imaging central to thrombectomy, and they extend selection to posterior-circulation stroke, large-core infarction, and medium-vessel occlusion.

3. Start thrombolysis if the patient is eligible, even when thrombectomy is also planned. Begin the infusion while the angiography suite is prepared. Waiting to "see if the drug works" burns the window for both treatments.

4. Assess thrombectomy in parallel. Don't park the case in a serial queue behind the infusion. Patient selection is primarily imaging-based, so radiology, stroke specialists, neurointervention, and anesthesia need the same clock.

5. Don't delay one therapy to watch the other. Neither thrombolysis nor thrombectomy should wait on a trial of observation. If both are indicated, both proceed.

6. Hand off with the times intact. Stroke-unit and rehabilitation teams need time-stamped clinical data, not a verbal summary that drops the last-known-well time. Cognitive tools and care plans have to fit this path. They must not obstruct it.

Say a patient was last known well at 10:00 a.m. and arrives at 1:30 p.m. with disabling deficits. That arrival is still inside the 4.5-hour thrombolysis window, so eligibility is assessed at once. You don't wait to see if the arm gets worse. If the same person arrives later, vascular and tissue imaging may still show a thrombectomy option.

Map who owns each step in your region before the next code. The system is EMS, the emergency department, imaging, stroke specialists, radiology, neurointervention, anesthesia, and the stroke unit. A step without an owner becomes a delay.

Secondary Prevention Blood Pressure Targets in Follow-Up

A reading of 136/84 mm Hg clears the bar for one stroke survivor and misses it for another. The difference is the subtype in the chart, and whether diabetes sits beside it.

Canadian secondary-prevention guidance sets these follow-up targets:

• After ischemic stroke or TIA, blood pressure consistently below 140/90 mm Hg.

• After a small subcortical (lacunar) stroke, a systolic target consistently below 130 mm Hg is considered reasonable.

• After intracerebral hemorrhage, sustained control below 130/80 mm Hg.

• With stroke and diabetes, systolic pressure below 130 mm Hg and diastolic pressure below 80 mm Hg.

Two errors follow from ignoring that split. A clinic that runs 140/90 for everyone calls a lacunar case controlled while it still sits above the tighter systolic goal. The reverse happens too. A hemorrhage target gets pushed onto an ischemic stroke with no reason in the note.

The guidance is firm on the number. It is far less specific about how often each clinic rechecks it, so the interval and the owner have to come from your team, not the page.

A follow-up routine that stops guesswork

1. Record the subtype and the comorbidities in the chart before anyone quotes "the" target. Lacunar, hemorrhage, and diabetes each change the number.

2. Collect home and clinic readings over the same period. One rushed cuff in a busy room is not a trend.

3. Confirm medication adherence before changing a dose. A missed pill looks like a failed drug.

4. Compare the readings with the target for that subtype and that comorbidity, not with a neighbouring patient's target.

5. Adjust the plan and book the next review in the same visit, so the new number doesn't float.

Take the lacunar case averaging 136/84 mm Hg. That meets a general ischemic goal below 140/90 and misses a systolic goal below 130. Reassurance would be the wrong close. The plan needs a review.

Write the applicable target into the chart so the next clinician checks the same number. Our notes on continuity of care are useful when that target has to survive the move from stroke clinic to primary care without being rounded back to a generic 140/90.

Stroke Rehabilitation Intensity and Virtual Access

Early rehab fails in two opposite ways. Teams either keep a stable patient in bed, or they push hard exercise in the first days after a severe stroke. Canadian recommendations, set out in the South East Ontario stroke network summary, advise mobilization once the patient is medically stable, ideally within 24 to 48 hours, with clinical judgment and caution. Early prolonged mobilization in the first few days, particularly after severe stroke, is not recommended.

A stable patient can start with short, supervised transfers and mobility work in that 24 to 48 hour window. Unsupervised intensive exercise is the wrong substitute. Once the patient is medically and neurologically stable and able to participate, intensity rises to about three hours of direct, task-specific therapy per day, five days a week, from an interdisciplinary team. That mix is physiotherapy, occupational therapy, and speech-language therapy aimed at real tasks, not a single long gym session.

Virtual care can widen or close gaps

The 2025 Canadian recommendations endorse virtual rehabilitation when in-person therapy is unavailable or infeasible, and they require routine screening of mood and cognition in virtual care. Tools should be adapted for aphasia, vision loss, cognitive impairment, or communication limits. The same guidance asks for enough clinicians experienced in cognitive rehabilitation across regions. That is a workforce problem before it is a video-call problem.

Remote delivery can cut travel and still shut people out. Aphasia, low digital literacy, thin broadband, and no caregiver at the screen all worsen exclusion. Use a short access check before you book the visit.

• Virtual is reasonable when the person can see and respond, the connection holds, and a therapist can adapt the task.

• In-person confirmation is the right next step when the result is unclear, sensory loss blocks the task, or safety decisions such as driving sit on the finding.

• Adapt the response format for aphasia or vision loss, and document language and sensory accommodations in the note.

• Bring caregivers in to help with setup, not to answer for the patient.

Say a rural patient with aphasia joins a virtual session using picture-based responses, and a later clinic visit confirms what the screen suggested. That pairing is stronger than either visit alone. Orange Neurosciences assessments are fast and straightforward and can be completed in clinic, remotely, or over telehealth platforms, which lets the team pick the format instead of forcing one. When the plan depends on where the patient will live after discharge, confirm the setting before counting on home or virtual therapy; for a seniors' residence, how Life Senior Placement verifies listings can help the team avoid sending a therapy plan to an address that cannot host it. For fitting intensity, format, and follow-up to the setting, use our neurorehabilitation guidance as the working checklist.

Cognitive Screening and Reassessment After Stroke

Screening is strongly recommended. A schedule for repeating it is not. That imbalance is the part of the Canadian stroke guidelines I would not paper over.

Canadian Stroke Best Practice Recommendations require every person with stroke or TIA to be screened for cognitive change relative to pre-stroke status, then assessed with validated tools when cognitive-rehabilitation needs are suspected. About 40% of people living with stroke have persistent thinking and memory difficulties, and first-year post-stroke cognitive impairment is estimated at 38%, yet the cognitive rehabilitation guidance still doesn't set a Canada-wide reassessment schedule, a minimum dataset, or a threshold for escalating care. Evidence quality for assessment and planning is low. The recommendation is strong anyway because the problem is common.

Separate the score from look-alikes

Fatigue, depression, aphasia, and sensory loss can all imitate a "bad cognitive screen." Conventional verbal screens underestimate impairment when communication is limited, so the method has to match the person. A single number also can't tell you functional risk. Medication, money, driving, work, and self-care are the outcomes that change the plan.

Build a repeatable profile instead of an isolated score. Set a pre-stroke baseline. Measure attention, memory, and executive function. Record what fails in daily life. Repeat the measure when the situation changes. Domain-specific work sits alongside global strategies such as physical activity. The profile supports clinical judgment. It doesn't replace diagnosis or the rehabilitation plan.

Say a caregiver calls three months after discharge because doses are being missed. A repeat profile shows executive function lower than at discharge. The therapist reviews the plan that week, instead of waiting for the next specialist visit to discover the change.

In a clinical setting, CSA results, when interpreted by a qualified healthcare provider, may be used as an aid in determining whether further cognitive evaluation is needed. Our cognitive assessments are built for that adjunct role, including a repeatable profile between visits. They are not a diagnosis, and they are not a substitute for the goal-oriented plan you build with the person, family, and caregivers.

Audit Your Stroke Pathway Against Current Targets

Audit now, while the order set still claims to match current guidance. Four checks are enough to see whether the pathway is real.

1. Edition. Each protocol should cite the current module, including the 2022 seventh-edition acute update and the 2025 interim thrombectomy recommendations.

2. Parallel decisions. Imaging, thrombolysis, and thrombectomy run together, and time-stamped data travel with the patient to the stroke unit.

3. Blood pressure. The target is set by subtype and diabetes status, and it is written in the chart, not left in a discussion note.

4. Cognition. Every stroke and TIA patient has a pre-stroke baseline on file and named triggers that restart testing.

The fourth check is where pathways fail. The guidelines push hard on screening, yet they leave reassessment timing to the team, so a pathway that names no schedule tends to produce none. I would treat a missing baseline the same way as a missing blood pressure target: a chart gap, not a clinical judgement.

Track three shares: patients with a documented cognitive baseline, patients with a recorded subtype-specific blood pressure target, and patients reassessed after discharge. Run them each quarter. If the first two hold steady while the third drops, the problem is follow-through after discharge rather than the acute pathway itself. Teams refreshing the knowledge behind the audit can use continuing medical education for physicians beside the chart review. When cognition affects work or driving paperwork, our note on the functional abilities form shows where a profile supports the form without completing it.

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Orange Neurosciences builds fast cognitive profiles and repeat-measurement workflows that sit beside stroke rehabilitation, giving an audit team a baseline and a reassessment it can count. A complete assessment takes under 30 minutes, and the tools support assessment and training for clinical teams while diagnosis and treatment stay with the care team. Visit Orange Neurosciences to see how a profile could fit your pathway, or register on the site to receive materials.