It is certainly a complication of the case.
Before you get too upset though, this complication is something the operating team often has little control over. It’s the sort of accident that can’t be prevented 100% of the time, no matter how good you are at putting stents in. Sometimes arteries just dissect. You can’t really avoid it Or predict it sometimes.
There are different degrees of severity and it can result in some pretty catastrophic consequences in a case if the team isn’t skilled enough to manage it quickly.
The dissection resulted in another stent placement, perhaps even a special kind of stent called a “covered” stent or graftmaster. This is pretty standard.
Fortunately the team managed to work effectively and address the issue and your husband is alive and well. He may have a slight increased risk of a future heart attack and it may complicate any future open heart surgery if he ever needs it. In general however there is nothing really *too* significant you need to be concerned with as a result of the dissection. The biggest danger is already passed in the laboratory.
To clarify: put some emphasis on the SLIGHT increase of risk.
This applies any time you have to add another stent. Every additional millimeter of metal that has to go into the arteries comes with its own risks and benefits.
Whether it has to go in for a dissection or to fix a blockage doesn’t really matter. Most interventionalists will try their best to minimize stent use to avoid putting metal into the artery unless they absolutely NEED to have it.
So yes, naturally it kind of sucks when you think you only really need to have 20mm ofstent and you wind up needing 30mm because of a dissection.