[Isolated chronic complete occlusion of the common trunk of the left coronary artery. Description of a case with preserved function of the left ventricle].
We report the case of a patient with isolated occlusion of the left main and normal left ventricular function. The presenting symptom was effort angina. Three major coronary risk factors were present: family history of CAD, cigarette smoking and type IIB hyperlipoproteinemia. Coronary angiography showed a right dominance and an effective collateral circulation to the left anterior descending and circumflex arteries. Surgical revascularization was considered the first choice treatment. We reviewed the most important literature on this topic and we concentrated especially on collateral circulation. We maintain it plays a role not only in preserving left ventricular function but also in precipitating left main occlusion by means of a flow competition mechanism.
Bernardi
G
G
Istituto di Cardiologia, Ospedale Civile, Udine.
Fontanelli
A
A
Feruglio
G A
GA
D000328:Adult; D000792:Angiography; D003097:Collateral Circulation; D017023:Coronary Angiography; D003326:Coronary Circulation; D003327:Coronary Disease / Q000000981:diagnostic imaging / Q000503:physiopathology* / Q000601:surgery; D004562:Electrocardiography; D006321:Heart / Q000503:physiopathology*; D006801:Humans; D008297:Male; D009204:Myocardial Revascularization
Occlusione completa, cronica, isolata del tronco comune della coronaria sinistra. Descrizione di un caso con funzionalità ventricolare sinistra conservata.