The Early Recognition of Right Ventricular Infarction
Diagnostic Accuracy of the Electrocardiographic V 4R Lead
- KLEIN, HERMAN O. M.D.
- TORDJMAN, THERESE M.D.
- NINIO, REUVEN M.SC.
- SARELI, PINCHAS M.D.
- OREN, VICTOR M.D.
- LANG, ROBERTO M.D.
- GEFEN, JACOB M.D.
- PAUZNER, CHANA M.D.
- SEGNI, ELLO DI M.D.
- DAVID, DANIEL M.D.
- KAPLINSKY, ELIESER M.D.
SUMMARY
The sensitivity and specificity of ST-segment elevation in the right precordial lead V4R as an early indicator of right ventricular infarction were examined in a consecutive series of 110 patients admitted for acute inferior myocardial infarction. The sensitivity was 82.7%, the specificity 76.9% and the positive predictive value 70% in 58 patients with right ventricular infarction documented by autopsy or a combination of radionuclide ventriculography and one or more of the following tests: echocardiography, technetium- 99m pyrophosphate scintigraphy and hemodynamic monitoring. The negative predictive value was 87.7%. Because of its simplicity and its high sensitivity and specificity, recording of V4R should be an intrinsic part of the early evaluation and electrocardiographic examination of acute inferior wall infarction.