Abstract
A conus artery is sometimes a good collateral source for the left anterior descending coronary artery and the right coronary artery (RCA). In some cases, the conus artery arises independently of the RCA from a separate orifice, which is called an isolated conus artery. The conus artery is often missed by angiography for RCA if a catheter is deeply engaged. This case report describes a percutaneous coronary intervention of chronic total occlusion of the proximal RCA with good collateral circulation from an isolated conus artery by super-selective ipsilateral injection via the artery.
Similar content being viewed by others
References
Levin DC, Beckmann CF, Garnic JD, Carey P, Bettmann MA (1981) Frequency and clinical significance of failure to visualize the conus artery during coronary arteriography. Circulation 63(4):833–837
Tsiamis E, Lazaros G, Patialiakas A, Maragiannis D, Stefanadis C (2008) Imaging the periphery of an occluded left anterior descending coronary artery: need for selective conus artery catheterisation. Hellenic J Cardiol 49(5):357–359
Levin DC (1974) Pathways and functional significance of the coronary collateral circulation. Circulation 50(4):831–837
Monopoli DE, Politi L, Sgura F, Rossi R, Modena MG, Sangiorgi GM (2011) Acute myocardial infarction with occlusion of all three main epicardial coronary arteries: when Mother Nature takes care more than physicians. Heart Vessels 26(2):222–225
Kerensky RA, Franco EA, Hill JA (1995) Antegrade filling of an occluded right coronary artery via collaterals from a separate conus artery, a previously undescribed collateral pathway. J Invasive Cardiol 7(7):218–220
Edwards BS, Edwards WD, Edwards JE (1981) Aortic origin of conus coronary artery. Evidence of postnatal coronary development. Br Heart J 45(5):555–558
Andreini D, Mushtaq S, Pontone G, Cortinovis S, Annoni A, Formenti A, Agostoni P, Bartorelli AL, Fiorentini C, Ballerini G, Pepi M (2010) Additional clinical role of 64-slice multidetector computed tomography in the evaluation of coronary artery variants and anomalies. Int J Cardiol 145(2):388–390
Matejka J, Varvarovsky I, Vojtisek P, Herman A, Rozsival V, Borkova V, Kvasnicka J (2010) Prevention of contrast-induced acute kidney injury by theophylline in elderly patients with chronic kidney disease. Heart Vessels 25(6):536–542
Yamagishi M, Haze K, Tamai J, Fukami K, Beppu S, Akiyama T, Miyatake K (1988) Visualization of isolated conus artery as a major collateral pathway in patients with total left anterior descending artery occlusion. Catheter Cardiovasc Diagn 15(2):95–98
Kawamura A, Jinzaki M, Kuribayashi S (2009) Percutaneous revascularization of chronic total occlusion of left anterior descending artery using contralateral injection via isolated conus artery. J Invasive Cardiol 21(5):E84–E86
Conflict of interest
None.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Arai, T., Kawamura, A., Yuasa, S. et al. Successful coronary intervention of chronic total occlusion of the right coronary artery by ipsilateral injection via an isolated conus artery. Heart Vessels 27, 327–330 (2012). https://doi.org/10.1007/s00380-011-0170-0
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00380-011-0170-0