Electrocardiographic prediction of lateral involvement in acute non-anterior wall myocardial infarction

Journal of Electrocardiology
Stephen NordaAnton P M Gorgels

Abstract

Recent research has established that a tall R-wave in V1 indicates lateral wall involvement in non-anterior wall myocardial infarction (MI). The objective of this study was to assess the value of the admission electrocardiogram (ECG) to predict R-waves and consequently lateral wall damage in the late phase of non-anterior MI. ECGs of 69 patients were analyzed. ST-segment changes in representative leads for lateral wall infarction such as V1, V2, V6 and I were correlated with the extent of QRS-wave changes in V1 and V6. ST-segment elevation in V6 showed correlations with R/S ratio in V1 (r=0.802, B=0.440, P=<0.001) and with the depth of Q-waves in V6 (r=0.671, B=0.441, P=0.007). This correlation was higher in a small subgroup where the left circumflex branch (Cx) was the culprit vessel (r=0.888, B=1.469 and P=0.018). ST-segment depression in lead I correlated with the height of R and the surface of R in V1 (height times width of R) (r=0.542, B=-0.150, P=0.005 and r=0.538, B=-0.153, P=0.005 respectively), especially in the subgroup without proximal occlusions of RCA (r=0.711 and r=0.699). ST-segment depression in lead I also predicted Q-waves in V6 (r=0.538, B=0.114, P=0.006). ST-segment changes in V2 showed no significant correl...Continue Reading

References

Aug 1, 1984·Journal of the American College of Cardiology·E W BoughE J Gandsman
May 12, 2001·The Journal of Emergency Medicine·W J BradyT C Chan
Sep 11, 2004·Journal of the American College of Cardiology·James C C MoonDudley J Pennell
Feb 8, 2006·The American Journal of Cardiology·Antonio Bayés de LunaGuillem Pons-Lladó
Feb 9, 2007·Annals of Noninvasive Electrocardiology : the Official Journal of the International Society for Holter and Noninvasive Electrocardiology, Inc·Antoni Bayés de Luna, Wojciech Zareba
Jul 14, 2007·Coronary Artery Disease·Daniele RovaiAlessandro Pingitore
Feb 18, 2010·Journal of Electrocardiology·Mads P AndersenHans E Bøtker

❮ Previous
Next ❯

Related Concepts

Related Feeds

Basal Ganglia

Basal Ganglia are a group of subcortical nuclei in the brain associated with control of voluntary motor movements, procedural and habit learning, emotion, and cognition. Here is the latest research.