The advantages of interventional treatment for intracranial aneurysm are less invasive and quicker recovery, but it does not mean that interventional treatment is minimally invasive treatment method and it is less risky. Intracranial aneurysm interventional treatment as a method of operating inside the cerebral vessels is also very risky. Intracranial aneurysm intervention is less invasive because the patient only needs to use a needle to make a small hole in the femoral artery, that is, in the thigh, and after the tube is removed, all you can see is a hole the size of a grain of rice. For aneurysms without bleeding, patients can get out of bed after 12 hours of intervention and be discharged after a day or two of observation and no abnormalities. Therefore, it is less invasive and quicker to recover. However, interventional treatment of intracranial aneurysm is also operated in the cerebral blood vessels, and once an accident occurs, it will cause very serious consequences. For example, aneurysm rupture: when the operator inserts the catheter guidewire into the intracranial aneurysm, it may puncture the wall of the intracranial aneurysm and cause the intracranial aneurysm to rupture and bleed, which is the most serious complication and if it occurs, the patient may die on the spot. Likewise, if the spring coil is blocked over during the process of filling the spring coil it may also cause the intracranial aneurysm to rupture and bleed. The general public may think that if the doctor is serious, then this will not happen. I am 100% sure that the surgeon is absolutely careful and cautious, but you can see that the surgeon is operating in an aneurysm that may be only a few millimeters, and the surgeon does not operate directly by hand, but through a tube that is more than one meter long. If the patient’s blood vessels are relatively smooth, the operation is still easier; if the patient’s blood vessels are older and more curved, then maybe the doctor’s hand moves the tube forward 1 cm, while the distal tube does not move at all, while the doctor moves 1 mm further, maybe the distal tube moves 1.1 cm forward. Well, my writing is limited, may not be very clear, you can imagine you use a 1 meter long chopsticks to pinch a peanut rice that is more than 1 meter away from you, you can guarantee that you can pinch it every time… Cerebral vasospasm: itself aneurysm if ruptured, causing subarachnoid hemorrhage, will lead to cerebral vasospasm; in the intervention process, if the patient’s vascular conditions are not very good, such as age, arteriosclerosis, etc., resulting in the doctor is difficult to put the catheter in the correct position, that repeated attempts in the process, will stimulate the blood vessels, and the blood vessels are stimulated, easy to spasm. Vasospasm means that the blood vessel is constricted, the original 1 cm blood vessel may contract to 1 mm, or even no blood flow through. In milder cases, the patient may have insufficient blood supply, but in heavier cases, it may directly cause cerebral infarction, which is commonly known as “stroke”. Thromboembolism: This is a relatively common problem that occurs with intracranial aneurysm interventions. For example, if there is a plaque on the wall of the patient’s blood vessel, the catheter guidewire may touch it when it passes through there, and the plaque will fall off, and then it will block a certain cerebral blood vessel and cause a “stroke”. These are just a few of the common problems that can occur, but there are many more uncommon complications. Therefore, interventional treatment is only less traumatic and quicker to recover, but the risk is still great, but generally speaking, complications are rare, and depending on the patient’s condition, sometimes there is no choice but to take a chance.