2.

急性肾梗死的危险因素和可能的病因

Risk factors and presumed etiologies of acute renal infarction

Items	Total (n=52)	Hematuria(+) (n=20)	Hematuria(-) (n=32)	Statistics	P
Data were presented as number (%). *Fisher’s exact test. ARI, acute renal infarction.
Risk factors for ARI
Atrial fibrillation	23 (44.2)	9 (45.0)	14 (43.8)	0.01	0.93
Malignancy	2 (3.8)	2 (10.0)	0 (0)	-	0.14*
Hyperlipidemia	15 (28.8)	5 (25.0)	10 (31.3)	0.23	0.63
Homocysteinemia	5/6 (83.3)	3/3 (100.0)	2/3 (66.7)	-	1.00*
Diabetes mellitus	4 (7.7)	1 (5.0)	3 (9.4)	-	1.00*
Hypertension	26 (50.0)	13 (65.0)	13 (40.6)	2.92	0.09
Valvular heart disease	30 (57.7)	12 (60.0)	18 (56.3)	0.07	0.79
Aortic mural thrombus	6 (11.5)	2 (10.0)	4 (12.5)	-	1.00*
Aortic dissection	2 (3.8)	1 (5.0)	1 (3.1)	-	1.00*
Congestive heart failure	5 (9.6)	2 (10.0)	3 (9.4)	-	1.00*
Coronary artery disease	12 (23.1)	5 (25.0)	7 (21.9)	0.07	0.8
Antiphospholipid syndrome	1 (1.9)	1 (5.0)	0 (0)	-	0.39*
Smoking (current/exsmoker)	20 (38.5)	9 (45.0)	11 (34.4)	0.59	0.44
Renal artery stenosis	17 (32.7)	4 (20.0)	13 (40.6)	2.38	0.12
Cerebrovascular disease	3 (5.8)	2 (10.0)	1 (3.1)	-	0.55*
Obesity	6/35 (17.1)	1/11(9.1)	5/24 (20.8)	-	0.64*
Cardiomyopathy	3 (5.8)	1 (5.0)	2 (6.3)	-	1.00*
Etiologies of ARI
Thromboembolism	30 (57.7)	10 (50.0)	20 (62.5)	0.79	0.38
In situ thrombosis	5 (9.6)	2 (10.0)	3 (9.4)	-	1.00*
Coagulation dysfunction	6 (11.5)	4 (20.0)	2 (6.3)	-	0.19*
Idiopathic	0 (0)	0 (0)	0 (0)	-	-
Unknown	11 (21.2)	4 (20.0)	7 (21.9)	-	1.00*