My brother in law has stage 2 liver cancer and has a heart working at 10% capacity. He has an external defibrillator. What is his prognosis?

He is such a young man at 67 to be so sick. I'm so sorry, it doesn't sound too good. 10% chances for anything aren't good.

Did his cardiologist suggest anything that may be able to improve his cardiac capacity (like cardiac cath, grafts, transplant, other procedures, etc.) It's good that he can carry around an external defibrillator but why didn't they surgically implant an internal one?

He has a cardiac arrhythmia of either V-Tach (ventricular tachycardia-quivering of the heart but doesn't beat) or V-Fib (ventricular fibrillation-fast heartbeat that can cause heart attack or v-fib), both lethal unless shocked back into a normal heart rhythm.

Now about the liver;
From Cancer Treatment Centers of America website;
In stage II, a single primary tumor (any size) has grown into the blood vessels, or there are several small tumors, all less than 2 inches (5 cm) in diameter. The cancer has not spread to nearby lymph nodes or distant sites. Fortunately you can have part of the liver removed IF your heart is up to surgery.

I would enjoy as much time with your BIL as possible. This is a very delicate health situation. He may not have much more time. I hope he has his affairs in order.
God bless your family.

Flo
My Dh had two cousins cleared for heart transplants with better numbers than your BIL. They both died before receiving one. They did not have cancer. Surely you realize his prognosis is not good. I’m very sorry.

10% of heart means he is having fluid problems. Not good there. The cancer Can't be operated on because of his heart.

I'm sorry to say that the liver cancer alone is a terrible diagnosis, according to reference.com "The survival rate for stage 2 liver cancer is 28 percent, as stated by the American Cancer Society as of January 2015. The survival rate means that 28 percent of people with stage 2 liver cancer will live at least 5 years after their cancer is diagnosed".