title: [A case report of reversible collateral vessels between right and left coronary artery].
abstract: We report a case of reversible collateral flow between the right coronary artery (RCA) and the left coronary artery (LCA). A 55 year-old woman was admitted to our hospital because of chest oppression. Cardiac catheterization revealed 99% stenosis to seg. 1. We found good collateral vessels from LCA to RCA. We performed PTCA (Percutaneous Transluminal Coronary Angioplasty) on this lesion. PTCA was successful and this lesion improved (99%----40%). After PTCA, collateral vessels had disappeared. After one year, the patient had chest oppression on effort again. We performed cardiac catheterization and found 90% stenosis to seg. 6. So we performed PTCA on the new lesion. During balloon inflation, we found good collateral vessels from RCA to LCA (reversible collateral flow). We considered that reversible collateral flow was important for myocardial protection.
authors.affiliation: Fukui Cardiovascular Center.
authors.forename: I
authors.initials: I
authors.lastname: Moriuchi
authors.forename: J
authors.initials: J
authors.lastname: Mifune
authors.forename: S
authors.initials: S
authors.lastname: Hifumi
authors.forename: Y
authors.initials: Y
authors.lastname: Takahashi
authors.forename: T
authors.initials: T
authors.lastname: Suematsu
authors.forename: S
authors.initials: S
authors.lastname: Ozawa
authors.forename: T
authors.initials: T
authors.lastname: Murakami
authors.forename: T
authors.initials: T
authors.lastname: Tanaka
mesh_terms: D000789:Angina, Unstable / Q000503:physiopathology* / Q000628:therapy; D015906:Angioplasty, Balloon, Coronary; D003097:Collateral Circulation; D003326:Coronary Circulation; D006801:Humans; D008297:Male; D008875:Middle Aged