The study is checking how safe and effective a device called AMDS is for people who have a serious heart problem called acute DeBakey type I dissection. This problem happens when the main artery from the heart tears. The study is looking at patients with this tear who also have problems with blood not flowing well to important parts like the brain or kidneys. The doctors will fix the tear with surgery and see if the AMDS device helps.

• **Participants must be 18 to 80 years old.**
• **The study is not randomized, meaning everyone gets the same treatment.**
• **People with certain health conditions or risks, like severe heart problems or cancer, can't join.**

If you join, you will have surgery and follow-up visits. They will check your condition using tests like CT angiograms, which are special X-rays. The study does not involve any new medicine. You should consider if you are comfortable with surgery and hospital visits. Also, think about your own health problems and check with your doctor if this study might be right for you.