Videocapillaroscopic Alterations in Alopecia Areata

Table 2

Videocapillaroscopic findings in patients with alopecia areata and in the control group.

Videocapillaroscopic parameters	Alopecia areata	Control group	𝑃
Distribution of the capillaries
Regular	55 (77.46%)	40 (100%)	0.001
Altered	16 (22.53%)	0
Density of the capillaries
Normal	58 (81.7%)	40	—
Increased	2 (02.28%)	0	—
Decreased	11 (15.49%)	0	0.009
Diameter of the capillaries
Normal	54 (76%)	40	—
Enlargement of the top part of the loop	9 (12.68%)	0	0.009
Enlargement of the efferent limb	8 (11.27%)	0	0.017
Length of the capillaries
Normal	71 (100%)	40	—
Extravasations
Absent	52 (73.24%)	36 (90%)	0.018
Single	10 (14.08%)	4 (10%)
Multiple	9 (12.68%)	0
Subpapillary venular plexus visibility
Invisible	59 (83.10%)	34 (85%)	0.571
1-2 fingers	11 (15.49%)	6 (15%)
>2 fingers	1 (1.41%)	0
Background colour
Pale	8 (11.27%)	0	0.002
Pink	63 (88.73%)	40 (100%)	—
Tortuous capillaries
Absent	11 (15.49%)	14 (35%)	0.013
Single	41 (57.75%)	26 (65%)
Multiple	19 (26.76%)	0
Tortuous capillaries irregular appearance
Absent	44 (61.97%)	25 (62.50%)	0.802
Present	27 (38.03%)	15 (37.50%)
Branching capillaries
Absent	49 (69.01%)	40 (100%)	0.001
Present	22 (30.99%)	0
Coiled capillaries
Absent	68 (95.77%)	40 (100%)	0.187
Present	3 (4.23%)	0
Features of the capillary neoformation
Absent	45 (63.38%)	40 (100%)	—
Present	26 (36.62%)	0	0.021