Conversation: The conversation between human and AI assistant.
[|Human|] Hi .couple ears ago I had ECG done, whicChatDoctore out as -QTC 447, LVEF55%, mild MR+PR, which I been told is normal , but recently been experiencing some heart rate abnormalities, which felt like heart was beating extremely fast for couple of minutes , then all of a sudent felt like heart cant beat for few seconds , and would start beat and would go to normal in short period of time . All this lasted no longer then 3-5 min , just felt quet sick ( nausea ) , and short of breath at the same time . Is this something I would need to worry about ? Many thanks
[|AI|]  Greetings. Welcome to Chat Doctor, and thank you for your question. I understand your concern. The episode you are describing is more like a bout of arrhythmia. What arrhythmia is this, I cannot be precise without some tests done. I see from the prior EKG you have done, there is a very slight prolongation of the QT interval (0.36-0.44 being the normal range). This talks about delayed repolarization and may be a trigger for arrhythmias, sometimes serious. I would recommend, at this moment, an EKG to be done and, then, a 24-hour rhythm monitor registration, to precisely decide what kind of arrhythmia is this. I would recommend you that the EKG should be done as soon as possible. Also, blood electrolytes should be checked, because electrolyte disturbances sometimes give rise to potentially serious arrhythmias. I hope I was of help. Take care.