I think it will be better to treat the intracranial aneurysm first before AVR. Because if AVR is done with mechanical prosthetic valve patient will need oral anticoagulant and any intracranial bleed in that case will be catastrophic. However if AVR is done with bioprosthetic valve then patient will need aspirin only and that case disicion of treatment to be taken according to size and location of aneurysm and risk of rupture. Thanks

I would recommend Coiling Prior to AVR and one month at least in-between both procedures.

Cardiopulmonary bypass and heparinization as well as pressure fluctuation in the perioperative period may have a deleterious effect on the un-rupturred aneurysm 

Thank You. Our neurosurgeons plan first step clipping becose patient has wide-necked aneurysm and second step -AVR.