Task: Answer Verification
Input (English): Question: Does chronic competitive flow from a patent arterial or venous graft to the circumflex system impair the long-term patency of internal thoracic artery to left anterior descending grafts in patients with isolated predivisional left main disease : long-term angiographic results of 2 different revascularization strategies?
Answer: In patients with IOSLM, long-term ITA to left anterior descending artery patency is not jeopardized by chronic flow competition from a concomitant arterial or venous graft to the circumflex system. Notably, the addition of a second ITA graft or of a SV to the first ITA does not lead to differences in long-term angiographic patency. Our results minimize the role of flow competition in this setting and should be kept in mind when choosing the appropriate graft configuration.
Output (English): no