Key result
Anomalous coronary origins (20 cases) and differing branching patterns (31 cases) were identified among 500 angiograms, with the study concluding that such arteries often appear otherwise normal.
Why the study?
The prevalence and characteristics of anomalous origins, branching patterns, and clinical abnormalities in coronary arteries in a west coastal Indian population were not well established.
Cross-Sectional (n=500)
No
This angiographic study provides prevalence data on coronary artery anomalies and branching patterns in a South Indian population, noting that coronary arteries can appear normal despite anomalous origins.
Regional angiographic prevalence data in west-coastal India; leaves open generalizability and clinical relevance pending larger studies.
The objectives under study were to validate percentages of presence of anomalous origins, branching patterns, presence of clinical abnormalities, for example, cameral fistulas, myocardial bridging, ectasia in coronary arteries. The cardiac dominance and the normal and diseased coronaries among the above-mentioned parameters were also analysed. The study was done among a west coastal population of Kerala and Karnataka. The angiograms were obtained from the Department of Interventional Cardiology, K.S. Hegde Medical Academy and Hospital, Karnataka after obtaining the ethical clearance. Five hundred angiograms of patients who presented with the clinical symptoms, ECG and ECHO abnormalities were studied prospectively. Informed consent was obtained. Recanalized normal looking coronary arteries were excluded. The parameters were assessed and categorized as per the sequence in the objectives of the study mentioned above. Presence of anomalous origins was seen in 20 cases and difference in branching pattern in 31 cases. The presence of ramus intermedius branch was seen in 51 cases, cameral fistulas in 5 cases, myocardial bridging in 29 cases and ectasia in coronary arteries in 8 cases. Cardiac dominance was seen as right in 405 cases, left in 44 cases and co-dominant in 29 cases. 298 patients had diseased coronaries among the study group. 22 cases were excluded. Discussion and comparisons with various studies and possible explanations are provided about the obtained result outcomes. The present study concludes that coronary artery appears to be normal even if anomalous origin and branching patterns are present.
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Paul et al. (2016) conducted a cross-sectional in Suspected coronary artery disease (n=500). Anomalous coronary origins and branching patterns vs. Normal coronary anatomy was evaluated on Prevalence of anomalous origins, branching patterns, and clinical abnormalities. Anomalous coronary origins (20 cases) and differing branching patterns (31 cases) were identified among 500 angiograms, with the study concluding that such arteries often appear otherwise normal.
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