6 4层多排CT对冠状动脉旁路移植术后的中期随访：影响桥血管通畅性的危险因素研究

李涛,杨立,张卫国,罗春才,黄自立,李金锋,李欣

Midterm Follow-up of Coronary Artery Bypass Grafting with 64-Slice Multi-detector Computed Tomography: Identification of Risk Factors Affecting Graft Patency

Li Tao,Yang Li,Zhang Weiguo,Luo Chuncai,Huang Zili,Li Jinfeng,Li Xin

Table 1 Clinical characteristics of patients who had patent grafts or poorly patent grafts at the time of MDCT examination (n=341)^§

Clinical characteristics	Patient groups		In total	t or χ²value	Pvalue
Clinical characteristics	Patent grafts (n=231)	Poor patent grafts (n=110)	In total	t or χ²value	Pvalue
Sex
Male, n (%)	188(81.4)	85(77.3)	273	0.79	0.37
Female, n (%)	43(18.6)	25(22.7)	68	0.79	0.37
Age, years	62.7±10.3	62.5±10.0	62.6±10.2	0.42	0.87
Bypass grafts, n (%)	574	320	894
Body Mass Index	30.1±5.8	30.5±6.1	30.2±5.9	0.55	0.45
History of
Diabetes, n (%)	72(31.2)	41(37.3)	113	1.25	0.26
Hypertension, n (%)	157(68.0)	61(55.5)	218	5.06	0.025
Dyslipidemia, n (%)	58(25.1)	38(34.5)	96	3.28	0.07
Smoking, n (%)	118(51.1)	48(43.6)	166	1.65	0.20
Cerebrovascular disease, n (%)	28 (12.1)	26 (23.6)	54	7.41	0.006
Post-operative adjuvant medication
Beta blocker, n (%)	101(43.7)	48(43.6)	149	0.00	0.98
ACE inhibitor, n (%)	58(25.1)	27(24.5)	85	0.01	0.9
Statin, n (%)	107(46.3)	49(44.5)	156	0.10	0.76
Calcium channel blocker, n (%)	21(9.1)	9(8.2)	30	0.08	0.78
Symptomatic, n (%)	39(16.9)	15(13.6)	54	0.59	0.44