Source:http://linkedlifedata.com/resource/umls/id/C0085298
MSH: Unexpected rapid natural death due to cardiovascular collapse within one hour of initial symptoms. It is usually caused by the worsening of existing heart diseases. The sudden onset of symptoms, such as CHEST PAIN and CARDIAC ARRHYTHMIAS, particularly VENTRICULAR TACHYCARDIA, can lead to the loss of consciousness and cardiac arrest followed by biological death. (from Braunwald's Heart Disease: A Textbook of Cardiovascular Medicine, 7th ed., 2005),CSP: unexpected natural death due to cardiac causes that occur rapidly after the onset of acute symptoms in a patient with diagnosed or undiagnosed preexisting heart disease, in whom cardiac dysfunction produces abrupt loss of cerebral blood flow.,NCI: An unexpected natural death from a cardiac cause within a short time period, generally less than 1 hour from the onset of symptoms, in a person without any prior condition that would appear fatal. SCD is most likely to occur in a patient with an underlying cardiac abnormality, whether known or not; approximately 7