Overview

Mechanical thrombectomy is a cutting-edge, minimally invasive neurointerventional procedure that removes a blood clot from a blocked artery in the brain during an acute ischemic stroke. Neurointerventional radiologists or neurosurgeons usually do this at stroke centres set up for it. Thrombectomy, on the other hand, uses specialized tools such as stent retrievers or aspiration catheters to physically remove the clot. Thrombolysis uses medicine to break up the clot. The procedure works best for large-vessel blockages and is usually performed within 6 to 24 hours of the first symptoms, depending on the imaging results. Quick treatment improves neurological outcomes and survival rates.

Why It Is Done
Mechanical thrombectomy is done to quickly restore blood flow in people who have had a severe ischemic stroke because a large artery is blocked. Some clots are too big or too strong for medicine to break down. Thrombectomy directly removes the clot, which lowers the risk of brain damage, raises the chances of functional recovery, and lowers the risk of long-term disability. When it's appropriate, it's often used in combination with intravenous thrombolysis. The procedure is time-sensitive, and doing it quickly is very helpful.

What to Expect
Before the procedure, an emergency evaluation includes a neurological exam, blood tests, and brain imaging, such as a CT scan and CT angiography, to rule out a blockage in a large blood vessel. Once it is clear that the patient is eligible, they are moved to a catheterization lab. During the procedure, you may get either local anaesthesia with sedation or general anaesthesia. A thin catheter is inserted into an artery in the wrist or groin and carefully guided to the blocked artery in the brain using X-ray guidance. A suction device, or stent retriever, is used to capture the clot and remove it. Then, blood flow is restored. After the procedure, the patient is watched over in a stroke or intensive care unit. You may need to have imaging done again to see how your brain is healing and to look for problems like bleeding.

Recovery & Outlook
How quickly the artery was reopened and how bad the brain injury was before will affect how well the person recovers. Many patients get much better in just a few days. To get back strength, speech, or coordination, you often need rehabilitation therapy. When performed early in patients who can benefit, mechanical thrombectomy greatly improves independence and long-term neurological outcomes.