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.
Below is a list of causes of peripheral neuropathies with arm or leg numbness or tingling as common symptoms: 1  Diabetic peripheral neuropathy (in diabetes I or II): âstocking-gloveâ (feet-hands) pattern of numbness. 2  Alcoholic neuropaty: long term excessive alcohol drinking, burning feet, wide-based gait.