[Experience with the electrocardiographic diagnosis of cardiac ventricular hypertrophy by the methods of mathematical statistical analysis].
A new index in the diagnostics of right ventricular hypertrophy: AQRS + 52 less than or equal to 235 is derived by means of the discriminant multifactorial analysis and processing the elements of 488 electrocardiograms in the 12 routine leads in 269 deceased. AQRS is the electric heart axis in the frontal plane, determined by Pis'menji tables; Z is the transitory zome in precordial leads, expressed with tenfold increased number of the lead, e.g. V1-10, V2-20 etc. In case of transitory zone between two leads, e.g. V4-V5-the interpolated value between 40 and 50 is indicated-i.e. 45. The new index as compared with selected 18 basic indices for right ventricular hypertrophy is with considerably better diagnostic qualities: sensitivity--84%, false positiveness 13% and diagnostic accuracy 86%.
D006332:Cardiomegaly / Q000175:diagnosis* / Q000503:physiopathology; D004562:Electrocardiography; D006801:Humans; D008433:Mathematics; D013223:Statistics as Topic
Opit za elektrokardiografska diagnostika na khipertrofiiata na surdechnite kameri posredstvom metodite na matematicheskiia statisticheski analiz