Vectorcardiogram of combined ventricular hypertrophy: posterior counterclockwise loop (Frank system).
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چکیده
منابع مشابه
The Vectorcardiogram of Left Ventricular Hypertrophy
DESPITE several studies, no definitive criteria for the vectorcardiographic diagnosis of left ventricular hypertrophy (LVH) have been proposed. Some reports have been limited to the analysis of cases of the systolic overload type of LVH' while others have failed to define specific criteria for the diagnosis or have emphasized the wide overlap of the findings in LVH with those of the normal popu...
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A study of 90 patients with left ventricular hypertrophy revealed a typical configuration of the spatial vectorcardiogram in most of the subjects. Typically the QRS stY-loop was smooth, wide and rounded, inscribed in a counterclockwise direction and placed largely to the left and above the iso-electric point in its frontal plane projection. The left sagittal plane projection of the QRS stY-loop...
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The Frank system vectorcardiogram has been studied in 61 patients with severe mitral valve disease to determine the value of the vectorcardiogram in the recognition of the relative degree of left and right ventricular hypertrophy in this situation. The appearance of the usual evidence of right ventricular hypertrophy is delayed in mitral valve disease by the vertical electrical position of the ...
متن کاملSpatial Frank vectorcardiogram in left posterior fascicular block. Criteria and correlation with clinical and electrocardiographic data.
Computer processing of spatial QRS parameters (Frank vectorcardiogram) was used to study left posterior fascicular block. The best set of vectorcardiographic criteria was sought in order to characterise the classic pattern of left posterior fascicular block. Using these criteria, 18 cases were selected from a group of 4600 patients and 340 healthy subjects; isolated left posterior fascicular bl...
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The differentiation of posterobasal myocardial infarction (PMI) from either right ventricular hypertrophy (RVH) or normal subjects displaying an anterior loop (AL) by electrocardiography (ECG) or vectorcardiography (VCG) is difficult. M-mode echocardiography (echo) via the anterior and subxiphoid methods has been helpful in defining cardiac chamber size and wall motion abnormalities. We tested ...
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ژورنال
عنوان ژورنال: Heart
سال: 1969
ISSN: 1355-6037
DOI: 10.1136/hrt.31.4.457