I am a male, 60 years of age with a history of excersion angina. I have undergone angiography and a block of 40 - 50% is detected. I am under medication, taking metosartan 50, angispan 2.5, roseday 5 mg, carvidon OD and clopilet a 150. I had gastric problem and stomach burning. I have seen a doctor and he advised pan 40 for 7 days and done sonography of abdomin. sonography results are all fine. is it necessary now to undergo an ogd