Ross MacKenzie, MD. A short PR interval may be associated with an otherwise normal. electrocardiogram or a myriad of bizarre electrocardiographic ab-. normalities. Clinically, the individual may be asymptomatic or ex-. perience a variety of complex arrhythmias, which may be disabling. and rarely cause sudden death.
Pain, numbness and tingling of the left arm may signal a cardiac emergency. Photo Credit: Comstock Images/Stockbyte/Getty Images The person walking into an emergency room with symptoms of pain, numbness and tingling in the left arm should be prepared for a series of tests to rule out a heart problem. This is not because a heart problem is the most common cause of these symptoms, but because it is the most serious of the possible causes, and the one that demands immediate medical treatment.
This pain is commonly described as a squeezing sensation or the feeling as though a great deal of pressure is being placed on the chest. This pain will begin to radiate to the back and down the arms as your condition worsens. Other potential causes of tingling in the left arm include: Stroke- Sudden tingling in the left arm can be the sign of an impending stroke. You may start to feel very dizzy or lightheaded and one side of your body will start to droop. You may begin to slur your words and have trouble communicating clearly as the condition takes hold.