ObjectiveTo explore the correlation between coronary slow flow phenomenon and obstructive sleep apnea(OSA). MethodsA total of 204 patients who underwent coronary arteriography which showed coronary slow flow phenomenon and had no coronary artery stenosis were selected as coronary slow flow group, including 156 cases of single coronary slow flow and 48 cases of multivessel coronary slow flow; 184 patients who had no coronary slow flow phenomenon were selected as control group, the rate of sleep apnea was compared between two groups; and the coronary slow flow group were divided into mild-moderate group and severe group according to apnea hypoventilation index (AHI), the mean platelet volume (MPV), CTFC were compared between two groups. ResultsThe rate of OSA in the coronary slow flow group (39.22%) was significantly higher than that of the control group (21.74%, P＜0.05). The AHI in the multivessel coronary slow flow group was significantly higher than that in the single coronary slow flow group(P＜0.05), the lowest nocturnal oxygen saturation in the multivessel coronary slow flow group was significantly lower than that in the single coronary slow flow group(P＜0.05). The MPV and CTFC in the severe group were significantly higher than that in the mild-moderate group(P＜0.05). ConclusionsPatients with coronary slow flow are liable to obstructive sleep apnea, the more the coronary count of slow flow, the more serious the symptom, coronary slow flow complicated obstructive sleep apnea may be related to MPV and CTFC.

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