Key result
Isolated LCx disease presents with ST-T changes in ~70% of patients, frequently showing subtle findings.
Why the study?
Isolated Left Circumflex Coronary Artery Disease is a relatively underexplored subset of coronary artery disease with atypical clinical and electrocardiographic features that complicate diagnosis and management.
Observational (n=50)
Isolated left circumflex coronary artery disease often presents atypically with subtle ECG changes, making echocardiography and angiography crucial for accurate diagnosis and timely intervention.
ECG subtlety in isolated LCx disease may delay diagnosis; leaves open validation of multimodality algorithms in larger cohorts.
Background: Isolated Left Circumflex Coronary Artery Disease (ILCxCAD) is a relatively underexplored subset of coronary artery disease, often presenting with atypical clinical, electrocardiographic, and echocardiographic features. Due to its unique anatomical and physiological implications, accurate diagnosis and timely intervention are critical. Objective: This study aims to analyze the clinical presentation, electrocardiographic patterns, echocardiographic findings, and angiographic characteristics of patients diagnosed with ILCxCAD. By understanding the distinctive features of this condition, we seek to enhance early recognition and optimize management strategies. Methods: A retrospective and prospective observational study was conducted on patients diagnosed with ILCxCAD. Clinical data, including symptomatology, risk factors, and comorbidities, were collected. Electrocardiographic findings were assessed for ischemic changes, while echocardiographic parameters were analyzed for regional wall motion abnormalities. Coronary angiography was performed to confirm the diagnosis and evaluate lesion characteristics. Results: The study found that patients with ILCxCAD often presented with subtle or nonspecific symptoms, leading to potential underdiagnosis. Electrocardiographic changes were variable, with many cases lacking definitive ischemic patterns. Echocardiographic assessments revealed regional hypokinesia primarily in the left circumflex territory. Angiographic analysis demonstrated significant stenosis predominantly in the proximal and mid-segments of the left circumflex artery. Conclusion: Isolated Left Circumflex Coronary Artery Disease presents diagnostic challenges due to its atypical clinical and electrocardiographic manifestations. Echocardiographic and angiographic evaluations play a pivotal role in confirming the diagnosis. Increased awareness of these findings can aid in timely diagnosis and intervention, ultimately improving patient outcomes.
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A et al. (2025) conducted an observational in Isolated Left Circumflex Coronary Artery Disease (ILCxCAD) (n=50). Isolated Left Circumflex Coronary Artery Disease was evaluated on Clinical, electrocardiographic, echocardiographic, and angiographic characteristics. In 50 patients with isolated left circumflex coronary artery disease, 70% exhibited ST-T changes and 56% had lateral wall abnormalities on ECG, highlighting its variable and often subtle presentation.
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