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20 de may. de 2003 · Coronary collaterals, or “natural bypasses,” are anastomotic connections without an intervening capillary bed between portions of the same coronary artery and between different coronary arteries ( Figure 1 ). 1 Collateral circulation potentially offers an important alternative source of blood supply when the original vessel fails to provide suff...
La circulación colateral es una red de diminutos vasos sanguíneos y en condiciones normales, no está abierta. Cuando las arterias coronarias se estrechan hasta el punto de que el flujo sanguíneo al músculo cardíaco es limitado ( enfermedad de la arteria coronaria ), los vasos colaterales pueden ampliarse y volverse activos.
21 de sept. de 2010 · Collateral and collateral-adjacent hyperemic vascular resistance changes and the ipsilateral coronary flow reserve: documentation of a mechanism causing coronary steal in patients with coronary artery disease.
7 de ene. de 2014 · Coronary collaterals are present at birth, with wide interindividual variation in their functional capacity. These vessels protect jeopardized myocardium, and the number of collaterals and...
4 de jun. de 2013 · The relevance of these collateral arteries is a matter of ongoing debate, but increasing evidence indicates a relevant protective role in patients with coronary artery disease. The collateral circulation can be assessed by different methods; the gold standard involves intracoronary pressure measurements.
15 de ene. de 2002 · Coronary collaterals are a network of nascent microvessels without apparent function in the healthy heart. But on coronary occlusion, they may grow within 1 week to perfuse viable distal myocardium. 1–9 In vivo methods to estimate human collateral 10 could expand our understanding of the rate and regulation of collateral growth and ...
4 de jun. de 2013 · The coronary arteries have been regarded as end arteries for decades. However, there are functionally relevant anastomotic vessels, known as collateral arteries, which interconnect epicardial coronary arteries. These vessels provide an alternative source of blood supply to the myocardium in cases of occlusive coronary artery disease.
