Hi Jocelyn,
Here's another welcome to the Colon Club. Sucks that you need to be here. One thing you've probably already figured out: You can't force your parent to know what they don't want to. Like it or not, they are from a different generation, and one that often didn't have a strong desire to know what was up. Many folks of that certain age felt/feel like "I'll just let the doc know what to do and do it". I was mid-50s when diagnosed with stage IV cc and am so lucky to have the onc I do--she always took it from me, what I wanted to know, and as I learned more (mostly from here) I had more questions that weren't crazy, and she answered them, we have continued in that manner for the past 3 years. Now that my husband is very, very sick from stage IV lymphoma, we share docs, and the same thing continues vis a vis finding out what we need to know. (BTW, through the new experience with my husband's diagnosis a year ago, I've had the chance to really know how wonderful and amazing this board it...the lymphoma board is NOTHING like our's!!!) Anyway, I digress, as usual.
You might want to see if your Dad will authorize you to get information/read charts/ask questions on his behalf. If he doesn't give this consent (in writing) it will be harder for you to learn what you may want to. So, perhaps speak with him about YOUR "need to know" vs HIS (and your mom's) "need to know". The choice(s) will all ultimately be his to make. And, without his consent, because of HIPPA, his doc legally can't really talk to you about what is going on.
Assuming your dad agrees, you'll probably want to confirm how they know the issues in his liver are, in fact, metastatic disease from the colon cancer. There are things that can show up in the liver that aren't cancer. You'll also want to talk with the oncologist about how he/she thinks your dad may tolerate chemo with his other medical problems (especially the pre-existing cardiac disease) Does your dad want to really work on fighting this? That, of course, will be up to him, and to an extent, up to his docs. Age, in and of itself, is NOT a reason not to treat, but his age and his overall health, and his desires, should be factored into chemo decisions. Surgery makes sense, probably, to get the colon cancer out, but unless it is obstructing it is not an emergency. These cancers are usually really slow growing. I was told my tumor had been in my colon >10 years, and the one in my liver >4 years. Cancer spreads (usually) either through the lymphatic system, or the blood circulation. Don't panic if you dad has some positive (for cancer) lymph nodes, but he may not. If the cancer HAS spread to his liver, it could have gotten there via his blood. Liver resections to remove tumors are very tough surgeries. There are other potential avenues to get rid of liver mets, but many, many factors come in to play, and there is lots of time to figure this out.
Try to avoid Googling too much. It will do nothing but terrify you. I promise you this. My best advice: One slow step at a time---really, really slow steps and tons of patience.
Best wishes,
Bev