Conclusion: Selective coronary arteriography is very important for syndrome X. coronary microvascular disease and endothelial dysfunction is the pathogenesis of cardiac syndrome X.

结论：冠状动脉造影对此病诊断十分重要，冠状动脉微小血管病变及血管内皮功能损伤是心血管x综合征发病机制。

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Conclusion: Selective coronary arteriography is very important for syndrome X. coronary microvascular disease and endothelial dysfunction is the pathogenesis of cardiac syndrome X.

结论：冠状动脉造影对此病诊断十分重要，冠状动脉微小血管病变及血管内皮功能损伤是心血管x综合征发病机制。

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