Neurocardiogenic syncope and narcolepsy – an unusual but important combination

Abstract

Syncope is a common presenting symptom in cardiology clinics. An accurate and detailed delineation of the history is important in arriving at the correct underlying diagnosis. Here we present an instance of syncope, which was initially diagnosed as neurocardiogenic syncope. On further assessment following persistent symptoms, this was correctly diagnosed as narcolepsy. We discuss the specific clues in the history and the diagnostic approach to this rare but important condition. We also highlight the possibility of coexisting autonomic disturbances in such cases, which may mislead the clinician if not considered carefully.