ABSTRACT
Objective:To explore the significance measuring serum levels of high sensitive C reactive protein (hsCRP),ho-mocysteine (Hcy)and carotid atherosclerosis lesion in patients with coronary heart disease (CHD)complicated atrial fibril-lation (AF).Methods:A total of 84 CHD + AF patients (CHD + AF group),42 CHD patients with sinus rhythm (sinus rhythm CHD group)and 40 healthy subjects (healthy control group)were selected.CHD + AF group was further divided into paroxysmal AF group (n=31),persistent AF group (n=27)and permanent AF group (n=26).Serum levels of hsCRP and Hcy and carotid intima-media thickness (IMT)were measured in all groups,and Crouse integral of atheroscle-rotic plaques was calculated.Results:Compared with healthy control group,there were significant rise in serum levels of hsCRP [(4.97±2.14)mg/L vs.(8.96±3.75)mg/L vs.(6.83±2.91)mg/L],Hcy [(15.48±4.36)μmol/L vs.(23.64 ±7.06)μmol/L vs.(17.76±4.83)μmol/L],IMT [(1.21±0.15)mm vs.(1.71±0.19)mm vs.(1.36±0.17)mm]and plaque Crouse integral [(4.13±1.06)scores vs.(7.89±1.35)scores vs.(4.96±1.21)scores]in CHD + AF group and sinus rhythm CHD group,P <0.05 or <0.01;and those of CHD + AF group were significantly higher than those of sinus rhythm CHD group,P <0.01 all,compared with paroxysmal AF group,there were significant rise in serum levels of hsCRP,Hcy,IMT and plaque Crouse integral in permanent AF group and persistent AF group (P <0.05 or <0.01),and those of permanent AF group were significantly higher than those of persistent AF group (P <0.05 or <0.01);Pearson correlation analysis indicated that in CHD + AF group,serum levels of hsCRP and Hcy were positively correlated with AF duration (r =0.619,0.527,P<0.05 both),and positively correlated with Crouse integral of carotid plaque (r =0.438, 0.561,P<0.05 both),and Crouse integral of carotid plaque was positively correlated with AF duration (r =0.624,P <0.05).Conclusion:Inflammatory reaction,oxidative stress and carotid atherosclerosis are more severe in CHD + AF pa-tients,and they aggravate along with AF duration prolongs.