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Table 2: Occlusion comparison between initial and first follow-up angiograms
Initial Angiography n Follow-up Angiography
Unchanged Reopening Progressive Thrombosis
Total/nearly total 142 128 5 8
Subtotal occlusion 23 11 10 3
Partial occlusion 8 3 4 1
Total 173 142 (82.1%) 19 (11.0%) 12 (6.9%)

Initial Angiography	n	Follow-up Angiography
Initial Angiography	n	Unchanged	Reopening	Progressive Thrombosis
Total/nearly total	142	128	5	8
Subtotal occlusion	23	11	10	3
Partial occlusion	8	3	4	1
Total	173	142 (82.1%)	19 (11.0%)	12 (6.9%)