The absence of intercoronary anastomotic channels >40 µm may be a contributing factor to sudden unexpected death during a severe initial attack of myocardial ischemia in patients with advanced coronary atherosclerosis.
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Absence of large intercoronary anastomoses may heighten sudden-death risk in severe ischemia; hypothesis-generating and requires prospective confirmation.
Spain et al. (1963) studied this question.
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