[Causes of diagnostic errors in ventricular pre-excitation syndrome associated with mitral valve prolapse]

Clinical appearance and misdiagnosis in 27 patients having associated preexcitation syndrome and mitral prolapse have been analyzed. Misdiagnosis of myocardial infarction, rheumatic and congenital heart disease, infectious-allergic myocarditis were most typical errors in this condition identification: in 9, 3 and 2 patients, respectively.