Comunicación intercoronaria distal. Presentación de un caso clínico con revisión de la literatura médica

What Is New About Intercoronary Arterial Continuity?

“…[1,2] However Donaldson et al reported a case with >95% narrowing of the RCA in which LAD-posterior descending artery (PDA) continuity didn't prevent extensive transmu- In conclusion, ICC, a rare variant of coronary circulation, can be found between different parts of coronary circulation not only in the grooves of the heart but also in the epicardial surface as in the presented case. The potential protective role of this connections and factors influencing protective potency deserves further evaluation.…”

“…Furthermore, the structure of them is typical of an epicardial artery with a well-defined muscular layer whereas collateral vessels resemble arterioles. [1] The incidence of ICC was found to be 0.002%. [2] We report of a unique case with a novel connection between diagonal branch of left anterior descending artery (LAD) and distal right coronary artery (RCA).…”

Intercoronary Continuity: A Case Report

“…In contrast to collaterals, the ICC is a single straight, larger epicardial vessel (usually over 1 mm) with similar in structure to normal coronary arteries. 1 Although the true incidence is unknown, Gavrielatos et al reported only two cases among 20,880 angiographies in 9 years. 2 It commonly occurs in the presence of coronary narrowing and after bypass surgery.…”

“…The continuity is found in either between anterior and posterior descending arteries or more commonly between the CX and the RCA (as in this patient). [1][2][3] The direction of flow can be bidirectional (as in this case) or unidirectional.…”

An Extremely Rare Coronary Variation: Direct Communication between the Circumflex and Right Coronary Arteries

“…First, despite being distinct from coronary collaterals, intercoronary continuity can potentially be confused with collateral arteries occurring in patients with coronary occlusions, leading to the misinterpretation of coronary angiograms. 4 Second, this coronary anomaly could be functionally significant-the presence of intercoronary continuity has been reported to have a protective role if occlusive coronary artery disease develops in one of interconnected vessels, 5 but it has also been linked to causing myocardial ischemia via coronary steal phenomenon. 6 We present this case to increase awareness of this rare coronary variation, as the number of anatomical and angiographic descriptions of this congenital coronary anomaly is very limited.…”