A stroke is a medical emergency in which every passing minute can determine whether a person survives, recovers or lives with permanent disability. It occurs when the blood supply to a part of the brain is interrupted by a blocked blood vessel or when a blood vessel ruptures and causes bleeding. Deprived of oxygen and essential nutrients, brain cells begin to die rapidly. The longer the interruption continues, the greater the risk of irreversible brain damage, paralysis, speech impairment and even death. Yet, many patients reach hospitals late because the early warning signs are overlooked or mistaken for fatigue, dizziness or temporary weakness.
Recognising the symptoms early is the first step towards saving lives. The B.E. F.A.S.T. approach offers a simple way to identify a possible stroke. B stands for sudden loss of Balance, E for changes in the Eyes or vision, F for facial drooping, A for weakness in an Arm or leg, S for difficulty Speaking or understanding speech, and T for Time to seek emergency medical help. Other warning signs include sudden numbness on one side of the body, confusion, difficulty walking and an unusually severe headache. Symptoms may appear suddenly and sometimes disappear within minutes. Even if the person seems to recover, these signs must never be ignored, as they may indicate a transient ischemic attack, which can precede a major stroke.
One of the biggest challenges in stroke management is the delay between the onset of symptoms and the initiation of treatment. Families may wait for symptoms to improve, try home remedies or consult multiple doctors before seeking emergency care. Such delays can reduce the opportunity to restore blood flow and preserve brain function. The safest response is to call emergency services immediately, note the time the symptoms began and reach a stroke-ready hospital without delay. Patients should not be given food, drinks or medicines on their own, as swallowing may be impaired and the type of stroke may not yet be known.
Advances in neurointervention and stroke management have significantly expanded treatment options, improving the chances of recovery for eligible patients. Some of the important developments include:
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Intravenous thrombolysis: Medicines such as alteplase and tenecteplase help dissolve blood clots responsible for an ischemic stroke. These treatments are generally considered within 4.5 hours of symptom onset, subject to clinical assessment and appropriate imaging. The earlier treatment begins, the greater the opportunity to limit brain damage.
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Mechanical thrombectomy: This minimally invasive procedure removes large blood clots blocking major arteries supplying the brain. A specialist guides a catheter through an artery, usually from the wrist or groin, and uses a stent retriever or aspiration catheter to extract the clot and restore blood flow. In carefully selected patients, advanced imaging can identify those who may benefit up to 24 hours after they were last known to be well. This extended window is not a reason to delay treatment, as earlier intervention generally offers greater benefit.
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Advanced brain imaging: CT angiography, CT perfusion and MRI-based imaging help doctors identify blocked arteries, assess the extent of brain injury and determine which patients are most likely to benefit from treatment. These technologies have improved patient selection and enabled some individuals arriving beyond conventional treatment windows to receive appropriate interventions.
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Combined reperfusion treatment: Selected patients may receive intravenous thrombolysis before mechanical thrombectomy. However, doctors should not delay thrombectomy while waiting to see whether the clot-dissolving medicine works when thrombectomy is indicated.
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Endovascular treatment for brain aneurysms: In patients with bleeding caused by a ruptured brain aneurysm, procedures such as endovascular coiling and, in selected cases, other specialised techniques can help secure the affected blood vessel and reduce the risk of further bleeding. The choice depends on the aneurysm’s size, location and anatomy.
Endovascular embolisation can help manage selected brain arteriovenous malformations and other abnormal blood vessel connections that may cause bleeding. These procedures use specialised materials to block or reduce abnormal blood flow and are planned according to the individual patient’s condition. Rapid diagnosis, careful blood pressure control, reversal of certain blood-thinning medicines when indicated, and timely neurosurgical or endovascular procedures can help manage bleeding and reduce complications. Some patients may also require procedures to relieve pressure within the skull or treat hydrocephalus.
Coordinated care involving neurologists, neurointervention specialists, neurosurgeons, critical care teams and rehabilitation professionals helps manage complications and improve recovery. Physiotherapy, speech and language therapy, and occupational therapy can support patients in regaining function and independence.
Despite these advances, no single treatment is suitable for every patient. The type of stroke, brain imaging findings, medical history and time since symptom onset determine the safest and most effective approach. Stroke prevention is equally important, particularly through controlling high blood pressure, diabetes and cholesterol, avoiding tobacco, maintaining a healthy lifestyle and identifying underlying heart conditions.
Stroke can affect people of different ages, and preparedness is essential. Knowing the warning signs, acting immediately and reaching a hospital equipped for advanced stroke care can make the difference between lifelong disability and meaningful recovery. When it comes to stroke, every minute matters. Recognise the signs, seek emergency medical help without delay and give the brain its best chance of recovery.