Sir I underwent angioplasty in May 2017 and taking tablets regularly and do exercises. Now I am taking cilacar for BP and crevast 75/10..before taking crevast I have used to take ecosprin 75/20 as my ent Dr said ecosprin may be reason for my nsasl block and sinus. Two nasal operations were done to remove polyp. So for the last one month taking crevast. Pl advise at what intervals the ecg tread mill echo and other test to be taken m once in three months I have taken the lab tests. All r normal.