Large Vessel Occlusion
Full Form of LVO
What is LVO?
Large Vessel Occlusion (LVO) refers to the blockage of a major intracranial artery, such as the internal carotid, middle cerebral, or basilar artery, typically by a thrombus or embolus. It is a leading cause of acute ischemic stroke and accounts for approximately 30-40% of all stroke cases. In India, with a rising burden of stroke due to hypertension, diabetes, and lifestyle factors, LVO is a critical diagnosis because it determines eligibility for mechanical thrombectomy—a time-sensitive, life-saving procedure that physically removes the clot. LVO is identified through advanced imaging like CT angiography or MRI, and time-to-treatment is paramount; the window for intervention is usually up to 6-24 hours from symptom onset depending on collateral circulation. The term is frequently used in neurology, interventional radiology, and emergency medicine departments across Indian tertiary care hospitals. For medical students and residents preparing for postgraduate exams such as NEET PG or AIIMS, understanding LVO pathophysiology, scoring systems (e.g., ASPECTS), and management protocols is essential. Early recognition and prompt referral to a comprehensive stroke center are key to improving outcomes.
LVO का फुल फॉर्म
बड़ी रक्तवाहिका अवरोध
Example
The neuro-radiologist confirmed LVO on the CTA, and the stroke team immediately prepared the patient for mechanical thrombectomy.