Is it a problem if celiac artery stent has severe stenosis? aren't there collateral pathways for blood flow? my sma has high stenosis but is patent. my celiac stent is almost occluded. i don't understand. i read different opinions on this.

Yes: Yes it is a problem. Celiac artery is the major blood supply for the upper abdomen, including spleen, liver, stomach and pancreas. If there is not enough blood supply because of the severe stenosis, these organs are not going to function properly and parts of them could actually "die". The collateral pathways are too small to meet the high blood flow the celiac artery does. Intervention is needed