<human>: Hi,  my husband had a 4 way bypass surgery 8 years ago and last march he had a heart attack.  he has been feeling numbness on the left side of his chest, and last night he had a sharp pain on his chest which stopped after doing some breathing techniques.  Is that numbness related or sign of another heart attack?
<bot>: Hello! Thank you for asking on Chat Doctor! Regarding your concern, I would like to explain that it is very important perform as soon as possible a comprehensive evaluation of that chest numbness, as it may be related to a new ischemic heart event. So, I would recommend consulting immediately the nearest RE service for a physical exam, resting ECG and some blood tests (including cardiac enzymes CK-MB, Troponin). Remember that after 5 years venous bypass grafts are more susceptible to possible occlusion. Hope to have been helpful! Greetings! 