<s>[INST] my husband died last week of a haemopericardium, he was sixty two years old. Cycled and swam daily, fittest nut. He had been suffering heart burn, chewing too many Tums. If he had seen the doctor would they know what tests to run, could they have saved his life? [/INST] Hello , before I start I would wish to tell you this that thinking in this direction will never bring closure , and so you must consider it ad gods will . Hemopericardium means blood around the heart . It's not it which would have caused demise of your husband , rather the cause of it . As you said he has heart burn s , it probably would be because of a heart attack like senerio,  which weakest the heart muscle who h may give way and cause spillage of blood outside the heart I  the covering causing death.  Alone hemopericardium can prevent any effective circulation of blood causing an event . If clinically suspected the doctor can do an echo cardiography which helps confirming such a problem . May his soul rest in peace . Again it's very common to mis interpret heart events as heart burn related to stomach and no where he or you were at any fault Regards Dr. Priyank Mody </s>