ECG changes resemble those seen in posterior infarction due to occlusion in the RCA, namely ST-segment elevations in V7–V9 and reciprocal ST-segment depressions in V1–V3, along with high R-waves and positive T-waves in the same leads (V1–V3).

2024年10月8日 · While both RCA and LCx occlusion may cause infarction of the inferior wall, the precise area of infarction and thus ECG pattern in each case is slightly different: The RCA territory covers the medial part of the inferior wall, including the inferior septum.

Right coronary artery (RCA) The right coronary artery supplies the entire right ventricle via the right marginal artery (r. marginalis dx). In 90% of individuals, the right coronary artery gives off the posterior descending artery (PDA) which supplies the inferior wall of the left ventricle.

2015年12月23日 · Inferior STEMI is as common as Anterior STEMI .Unlike the anterior STMI which auto localises to LAD , inferior STEMI has to be fixed either RCA or LCX. Following ECG features help localize Inferior STEMI . ST elevation in lead 3 > lead 2 suggest RCA (Not always true ) ST depression in lead V1,V2,V3…

2015年6月29日 · Which artery am I infarcting? ECG leads vaguely correspond to areas of the myocardium supplied by the coronary arteries. If you would like to pay them, UpToDate have …

2024年10月23日 · A review of the ECG features of right ventricular infarction with some useful tips on how to diagnose this important condition.

2001年7月24日 · Four previously described criteria were useful in identifying the right coronary artery (RCA) or the left circumflex coronary artery (LCX) as the culprit: ST-segment elevation in lead I, ST-segment more or less elevated in lead II than in lead III, ST-segment elevation ≥ 0.5 mm in lead V 4 R, and various combinations of ST-segment elevation ...

先來看看恐怖的下壁梗塞 (inferior myocardial infarction)↓↓↓. (1) ST段上升III大於II且鏡像導程 I、aVL ST段下降嗎？ 如果是，很可能是右冠狀動脈 (RCA)喔！ 如果否： (2) I、aVL、V5 6 ST段上升且V1、2、3 ST段下降嗎？ 如果是，那左迴旋支 (LCX)的可能性大增喔！ (3) V1、V4R ST段上升嗎？ 如果是，請小心右心梗塞，這時候，病人會對前負荷 (pre-load)變化十分敏感，很容易掉血壓喔！ 比起恐怖的下壁梗塞 (inferior myocardial infarction)， 前壁梗塞 (anterior myocardial …

2007年10月14日 · This part of the heart muscle lies on the diaphragm and is supplied of blood bij the right coronary artery (RCA) in 80% of patients. In the remaing 20% the inferior wall is supplied by the ramus circumflexus (RCX). An occlusion of the RCA can be distinguished of a RCX occulusion on the ECG: [1] Distal RCA occlusion (sens 90%, spec 71%)

Electrocardiograms (ECGs) are essential in identifying the type and location of acute myocardial infarction. In the setting of inferior wall myocardial infarction (IWMI), identification of the right coronary artery (RCA) as the culprit artery is important because of the potential complications associated with its involvement.