Total splenic artery embolization for splenic artery aneurysms in patients with normal spleen

Table 1 Clinical characteristics, outcomes and complications in patients with splenic artery aneurysms n (%)

	Group A (n = 16)	Group B (n = 19)	P value
Age (yr, mean ± SD)	50.81 ± 7.66	48.42 ± 6.37	0.320
Female/male	6/10	8/11	0.782
SAA size (mm)	16.43 ± 3.59	10.14 ± 2.07	< 0.001
SAAs			0.156
Single	12	18
Multiple	4	1
Technical success	16 (100)	19 (100)	0.999
Hospital stay (d)	9.25 ± 2.84	8.52 ± 1.74	0.320
Complications
Post-embolization syndrome	6 (37.5)	3 (15.8)	0.245
Major complications	2 (12.5 )	0 (0)	0.202
Splenic abscess	1	0
Pleural effusion	1	0
Ascites	0	0
CT follow-up (mo)	38.69 ± 15.66	32.84 ± 15.02	0.269
Clinical follow-up (mo)	39.94 ± 14.90	35.16 ± 16.01	0.370

SAA: Splenic artery aneurysm; CT: Computed tomography.

Table 2 Comparison of variables between the two groups during follow-up (mean ± SD)

Evaluation	Initial		1 mo		6 mo		1 yr		2 yr		≥4 yr
	Group A	Group B	Group A	Group B	Group A	Group B	Group A	Group B	Group A	Group B	Group A	Group B
WBC count (× 109)	6.1 ± 0.9	6.2 ± 1.0	6.2 ± 1.2	6.2 ± 1.1	6.2 ± 0.7	6.3 ± 1.0	6.0 ± 0.9	5.8 ± 0.8	5.9 ± 1.0	5.9 ± 1.0	5.9 ± 0.9	5.9 ± 1.1
PLT count (× 109)	172.1 ± 52.9	178.7 ± 48.4	190.3 ± 28.3	198.9 ± 28.2	191.2 ± 23.7	194.3 ± 27.8	191.2 ± 31.6	196.5 ± 29.3	196.6 ± 28.6	190.1 ± 34.1	180.6 ± 3-6.6	192.8 ± 27.8
Splenic volume (cm3)	289.8 ± 28.2	290.5 ± 26.5	222.3 ± 47.9a	285.2 ± 29.2c	202.3 ± 43.0a	283.6 ± 30.5c	199.1 ± 40.9a	275.4 ± 38.2c	197.7 ± 40.9a	276.4 ± 43.0c	201.3 ± 25.1a	281.7 ± 42.1c

^aP < 0.05, Compared splenic volume in group A between preoperatively and at each follow-up point;

^cP < 0.05, Compared splenic volume between group A and group B at each follow-up point. WBC: White blood cell; PLT: Platelet.