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  • Title: Clinical correlates of acute right ventricular infarction in acute inferior myocardial infarction.
    Author: Sinha N, Ahuja RC, Saran RK, Jain GC.
    Journal: Int J Cardiol; 1989 Jul; 24(1):55-61. PubMed ID: 2759757.
    Abstract:
    Right ventricular infarction was diagnosed on the basis of ST-segment elevation greater than or equal to 1 mm in at least one right precordial lead (V3R-V6R) in 20 of 50 patients with first acute inferior myocardial infarction. Seventy five percent of these had ST elevation in 2 or more right precordial leads. Giddiness and hiccups were more common amongst such patients (P less than 0.05). Signs of right ventricular dysfunction-raised jugular venous pressure (65%), Kussmaull's sign (45%), hypotension (without cardiogenic shock, 40%) and right-sided third sound (25%) in the absence of clinical left ventricular failure, were noted in 65% of such patients. Eleven patients had 2 or more of the above signs. ST elevation in 2 or more right precordial leads was found in 10 of these 11 patients. A more complicated course in the hospital characterised by bradyarrhythmias, hypotension and cardiogenic shock, combined with a greater mortality was seen in such patients. We conclude that the bedside diagnosis of haemodynamically significant right ventricular infarction can be made on the basis of a combination of clinical signs and ST elevation in 2 or more right precordial leads, even in units not equipped for bedside haemodynamic monitoring, echocardiography and radionuclide studies. This should lead to a better identification and management of such patients.
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