Primary XXXX : its incidence, mode of the onset and prognostic evaluation.

@entity1 @entity583 @entity73 @entity3361 @entity951 @entity1188 @entity453
The incidence, mode of the onset and prognosis of primary @entity453 in 1,445 consecutive @entity1 with @entity583 undergoing coronary angiography were elucidated in the present study. Primary @entity453 was observed in four @entity1 (0.28%). The first case was a 28-year-old @entity1 , who developed @entity951 at rest, followed by @entity583 . His coronary angiogram showed dual lumina in the proximal to distal segments of the right coronary artery, which were separated by a flap. A left ventriculogram showed severe @entity73 (akinesis) in its inferior segment. Six years later, he was classified as New York Heart Association (NYHA) functional class I. The second case, a 54-year-old @entity1 , developed @entity951 followed by @entity583 . His coronary angiogram showed a similar dissection from the proximal to distal segments of the right coronary artery. A left ventriculogram showed akinesis of the inferior segment and a coronary angiogram five years later showed marked resolution of the dissection. Twelve years after the @entity1188 , he was classified as NYHA functional class I. The third case, a 46-year-old @entity1 , experienced sudden onset of @entity583 . Her coronary angiogram showed dissection from the middle to distal segments, and the posterior descending branch of the right coronary artery. A left ventriculogram showed akinesis of the inferior segment, and three years later, she was asymptomatic. The fourth case, a 28-year-old @entity1 , developed anterior @entity583 following delivery. Her coronary angiogram revealed dissection from the proximal to middle segments of the left anterior descending artery. A left ventriculogram showed akinesis in the anteroseptal segment and dyskinesis in the apical segment. She died suddenly four years after her @entity583 . Thus, primary @entity453 is not extremely rare and it may have been associated with @entity3361 in at least two of these four cases.
