Brachial artery and microvascular endothelium dependent vasodilatation compared with controls. Data given represent median (range) for flow mediated brachial artery or for acetylcholine mediated dermal microvascular vasodilatation
| Vasculitis | ||||||
|---|---|---|---|---|---|---|
| Controls | All vasculitis | WG | CSS | PAN | TAK | |
| WG, Wegener’s granulomatosis; CSS, Churg-Strauss Syndrome; PAN, polyarteritis nodosa; TAK, Takayasu’s arteritis. | ||||||
| Number | 41 | 54 | 32 | 6 | 11 | 5 |
| Brachial artery EDV (%) | 7.2 (2.5–14.1) | 3.8 (−12.9–10.8) | 3.4 (−12.9–10.8) | 3.3 (−2.4–6.8) | 2.0 (−2.4–7.7) | 5.8 (4.5–7.6) |
| p versus controls | <0.0001 | <0.0001 | 0.008 | <0.0001 | 0.26 | |
| Number | 21 | 32 | 19 | 4 | 6 | 3 |
| Microvascular EDV (%) | 3.9 (1.9–6.1) | 2.3 (0.8–4.2) | 2.2 (1.3–4.2) | 2.4 (0.9–4.2) | 2.3 (0.8–3) | 3.3 (2.1–3.3) |
| p versus controls | 0.0002 | 0.0015 | 0.09 | 0.008 | 0.16 | |