Detection of acute right ventricular infarction by right precordial electrocardiography

Journal Article · Wed Sep 01 04:00:00 EDT 1982 · Am. J. Cardiol.; (United States)

DOI:https://doi.org/10.1016/0002-9149(82)90305-8· OSTI ID:6607400

Croft, C H; Nicod, P; Corbett, J R; Lewis, S E; Huxley, R; Mukharji, J; Willerson, J T; Rude, R E

The value of 0.1 mV or greater of S-T segment elevation in at least one right precordial lead (V4R to V6R) in defining right ventricular myocardial infarction was assessed prospectively in 43 subjects (33 consecutive patients with enzymatically confirmed infarction of varying type and location, 4 patients with unstable angina and 6 healthy volunteers). Patients with acute myocardial infarction were studied with radionuclide ventriculography and /sup 99m/Tc stannous pyrophosphate myocardial scintigraphy 18.2 +/- 14.3 (mean +/- standard deviation) and 85.1 +/- 18.0 hours after the onset of symptoms, respectively. Eleven patients demonstrated right precordial S-T segment elevation and 22 patients did not. Right ventricular ejection fraction was significantly lower in Group A (0.47 +/- 0.11) than in Group B (0.60 +/- 0.12) (p less than 0.01). Right ventricular total wall motion score was 63.8 +/- 15.6 percent of normal in Group A versus 94.3 +/- 8.5 percent in Group B (p less than 0.001). /sup 99m/Tc pyrophosphate uptake (2+ or greater) over the right ventricle occurred in nine patients (81.8 percent) in Group A and in one patient (4.5 percent) in Group B (p less than 0.001). No patient with unstable angina and no healthy volunteer had S-T segment elevation in a right precordial lead. S-T segment elevation of 0.1 mV or greater in one or more of leads V4R to V6R is both highly sensitive (90 percent) and specific (91 percent) in identifying acute right ventricular infarction.

• Research Organization: Department of Internal Medicine, Cardiology Division at the University of Texas Health Science Center at Dallas
• OSTI ID: 6607400
• Journal Information: Am. J. Cardiol.; (United States), Journal Name: Am. J. Cardiol.; (United States) Vol. 50:3; ISSN AJCDA
• Country of Publication: United States
• Language: English

Related Subjects

550101 -- Behavioral Biology-- Tracer Techniques
550601* -- Medicine-- Unsealed Radionuclides in Diagnostics
550901 -- Pathology-- Tracer Techniques
59 BASIC BIOLOGICAL SCIENCES
62 RADIOLOGY AND NUCLEAR MEDICINE
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BLOOD CIRCULATION
BODY
CARDIOGRAPHY
CARDIOVASCULAR DISEASES
CARDIOVASCULAR SYSTEM
COMPARATIVE EVALUATIONS
COUNTING TECHNIQUES
DIAGNOSIS
DIAGNOSTIC TECHNIQUES
DIAGNOSTIC USES
DIAGRAMS
DISEASES
ELECTROCARDIOGRAMS
HEART
HOURS LIVING RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
ISOMERIC NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MUSCLES
MYOCARDIAL INFARCTION
MYOCARDIUM
NUCLEI
ODD-EVEN NUCLEI
ORGANS
PATIENTS
RADIOISOTOPE SCANNING
RADIOISOTOPES
SCINTISCANNING
TECHNETIUM 99
TECHNETIUM ISOTOPES
USES
YEARS LIVING RADIOISOTOPES