Evaluation of left ventricular enlargement in the lateral position of the chest using the Hoffman and Rigler sign.

نویسندگان

  • V Freeman
  • C Mutatiri
  • M Pretorius
  • A Doubell
چکیده

OBJECTIVE To evaluate left ventricular enlargement in the lateral projection of the chest using the Hoffman and Rigler sign. BACKGROUND The Hoffman and Rigler sign for determining left ventricular enlargement was suggested as early as 1965 before the routine use of echocardiography. METHODS We studied 136 patients who had had cardiac ultrasound and chest X-rays with lateral projections. We assessed left ventricular size on the lateral projection using the Hoffman and Rigler method (measurement A) and compared this measurement to the value obtained by cardiac ultrasound. The effect of right ventricular size on this measurement was also evaluated. RESULTS The average value of measurement A in all patients with echocardiographic evidence of left vetricular enlargement (LVED above 59 mm) was 19 mm (SD +/- 4.03) (95% CI 17.96 to 20.04). Of the 48 patients with a normal size left ventricle on echocardiography, 25.58% had measurement A 18 mm and above, and 13.95% had a value 19 mm and above. Of the 19 patients with right ventricular enlargement (normal left ventricle) on echocardiography, 36.84% had measurement A18 mm and above, whereas 21.05% had this value 19 mm and above. Measurement A in patients with left ventricular enlargement compared with those with right ventricular enlargement showed a significant difference (p < 0.05). CONCLUSIONS When the crossing of the inferior vena cava and the left ventricle can be adequately visualised, the Hoffman and Rigler sign of evaluating left ventricular enlargement in the lateral projection of the chest is a valuable alternative where cardiac ultrasound is not readily available.

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عنوان ژورنال:
  • Cardiovascular journal of South Africa : official journal for Southern Africa Cardiac Society [and] South African Society of Cardiac Practitioners

دوره 14 3  شماره 

صفحات  -

تاریخ انتشار 2003