Smog is a rare disease that was first discovered in Japan in the 1950s and 1960s. The name “smog” comes from the fact that when a doctor performs a cerebral angiogram on a person’s brain, the first thing he or she sees is smoke, which leads to the name smog. Smoke disease has always attracted the attention of patients because it can cause cerebral ischemia and cerebral hemorrhage, and cerebrovascular disease is a disease with a high mortality rate in China. The focus of treatment for smog is twofold: one is to stop the development of smog vessels that have already formed and the other is to reduce the formation of new smog vessels. Obviously it is generally unlikely that this intracranial arteriovenous malformation can be resolved with only a single drug. Only by surgically anastomosing the intracranial and extracranial vessels and improving the blood supply to the brain can a series of hazards due to vascular blockage be truly resolved. Smog surgery treatment plan Through the summary of the completed smog surgery cases, we found that there are patients with successful surgery and patients with failed surgery, and the failure of surgery does not mean that the operation fails after surgery, but that the patient’s symptoms do not improve effectively after surgery. So, is it still possible to operate after a failed smog surgery a few years ago? In fact, this issue has been discussed in detail by medical experts and a systematic surgical plan has been made. For patients with smog who had only unilateral surgery, they can choose to have contralateral surgery if necessary after surgery, depending on the situation; for patients who had failed to have patching surgery, they can have further bypass surgery after surgery under the guidance of doctors; and for patients who have had bypass surgery but failed, they can still have patching surgery. A powerful weapon in the treatment of smog In fact, whether it is a patch or a bypass, strictly speaking, there are still some defects. Fortunately, there is a technique that incorporates both patching and bypass in one procedure, improving and enhancing some of the details to maximize the results. This technique, called combined vascular bypass, is a powerful weapon in the treatment of smog.