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Table 1 Demographic and characteristic data of patients

From: Comparison of the perioperative time courses of matrix metalloproteinase-9 (MMP-9) and its inhibitor (TIMP-1) during carotid artery stenting (CAS) and carotid endarterectomy (CEA)

Parameters CEA CAS
Patient number 30 25
Age (year) 65 ± 8 60 ± 7
Gender (male/female) 20/10 16/9
Laterality (right/left) 15/15 13/12
Degree of stenosis 83 ± 7.8% 79 ± 7.5%
Contralateral stenosis > 50% n (%) 8 (26.7) 9 (36)
Symptomatic ICA stenosis n (%) 16 (53.3) 17 (68)
Previous stroke n (%) 6 (20) 5 (20)
Time since stroke (months) 28 ± 10 27 ± 18
Previous transient ischaemic attack n (%) 10 (33.3) 12 (48)
Time since transient ischaemic attack (months) 6 ± 4 6 ± 3
Previous ipsilateral ICA procedure n (%) 4 (13.3) 7 (28)
Coexisting diseases
 Hypertension n (%) 29 (96.7) 23 (92)
 Non-insulin-dependent diabetes mellitus n (%) 9 (30) 3 (12)
 Insulin-dependent diabetes mellitus n (%) 3 (10) 2 (8)
 Hyperlipidaemia n (%) 20 (66.7) 14 (56)
 History of smoking n (%) 10 (33.3) 8 (32)
Medications
 Acetyl salicylic acid n (%) 16 (53.3) 20 (80)
 ADP receptor antagonists n (%) 13 (43.3) 8 (32)
 Lipid lowering agents n (%) 20 (66.7) 15 (60)
Intraoperative complications
 Hypertension n (%) 9 (30) 1 (4)
 Hypotension n (%) 8 (26.7) 1 (4)
 Transient shunt n (%) 3 (10) 0 (0)
 Bleeding (> 100 ml) n (%) 2 (6.7) 0 (0)
 Transient ischaemia n (%) 4 (13.3) 0 (0)
 Stroke n (%) 0 (0) 0 (0)
Postoperative complications
 Bleeding (> 100 ml) n (%) 2 (6.7) 1 (4)
 Transient ischaemia n (%) 2 (6.7) 0 (0)
 Stroke n (%) 0 (0) 0 (0)
  1. Data are presented as the mean ± standard error of mean
  2. ICA internal carotid artery, ADP adenosine diphosphate