2024年10月8日 · The patient in this case had a 90% occlusion of his obtuse marginal artery (= a branch of the LCx supplying the lateral wall of the LV). This ECG was originally featured on Dr Smith’s ECG Blog. Click here for a description of the case along with some useful pearls from Dr Smith regarding diagnosis of lateral infarction.

2017年4月2日 · Despite non-diagnostic ECG findings, total LCX occlusion should be considered in clinical presentations consistent with ACS. If the patient appears clinically worse than the ECG findings would suggest, consider discussing with interventional cardiology about pursuing PCI earlier than the NSTE-ACS protocols would dictate. These patients can have ...

Many acute LCX occlusions remain undiagnosed because the standard 12-lead ECG is least sensitive for infarcts involving acute LCX occlusions. 1, 12, 13 A 12-lead surface ECG is able to detect acute LCX occlusion in ACS patients in only one-third to one-half of cases, 2, 10 as also demonstrated in the present study.

The LCx supplies the AV node in 10% of all individuals. Occlusion in the left circumflex artery. Posterior (posterolateral, inferobasal) infarction – If the LCX only supplies the posterolateral wall, occlusion will lead to posterolateral infarction (also referred to as posterior or inferobasal infarction). ECG changes resemble those seen in ...

2024年3月1日 · Plausible explanations for the lack of STE in patients with left or codominant circulations and proximal occlusion of the LCx are a matter of speculation. It is widely known that the 12‑lead ECG is particularly insensitive to LCx occlusion due to the absence of lateral precordial leads and the late depolarization of the lateral wall [15].

2001年7月24日 · In addition to statistical probability, several ECG criteria help identify the RCA or the LCX as the artery containing the culprit lesion (Tables 1, 2). Each of these criteria is based on one of two anatomic facts. First, the myocardial distribution of the RCA is slightly rightward in the frontal plane, and consequently the current of injury ...

In these individuals, the LCx only supplies the basal and mid parts of the posterolateral wall. As discussed previously, this part of the left ventricle is difficult to capture with the conventional leads in the 12-lead ECG. In 10% of individuals, the coronary circulation is left-dominant, meaning that the PDA is given off by the LCx.

2019年3月5日 · It is well known that the 12‐lead ECG is particularly insensitive for LCx occlusion because of the absence of lateral precordial leads and the late depolarization of the lateral wall. 13, 24 Classical STE of ≥0.1 mV in at least one of leads I, aVL, V 5, and V 6 is seen in only 48% of patients with LCx occlusion. 13, 24, 25 In the PARAGON ...

Explore ECG features of lateral STEMI, including isolated, antero-lateral, and infero-posterior-lateral infarctions and their vascular supply. ... LCx (Left Circumflex Artery) The lateral wall is best viewed from: Lateral leads (V5-V6, I, aVL) Reciprocal changes are usually seen in leads (III, aVF)

To assess the characteristic electrocardiographic (ECG) ST changes during acute occlusion of the left circumflex artery (LCX), we observed ECG changes during percutaneous transluminal coronary angioplasty (PTCA) of the LCX and compared the results with those obtained during right coronary angioplasty. Results were as follows: 1.