Assessment of palmar subcutaneous tissue vascularization in patients with Dupuytren’s contracture

Table 4 Parameters of microcirculatory flow and post-occlusive hyperemia test in Dupuytren’s contracture patients in younger (DCY) and older (DCO) groups and healthy controls (Norm) in different age groups [Me (Q1/Q3)]

Parameters	Norm (25-54 yr of age)n = 22	DCY (< 55 yr of age)n = 6	Norm (55-70 yr of age)n = 6	DCO (≥ 55 yr of age)n = 18
Age	33 (23/54)	52 (45/54)	59 (55/63)	66 (59/69)
Microcirculatory flow base (PU)	4 (3.5/5.7)	15.45c (8.4/20.6) P3 = 0.020	3.5 (2.55/4.7)	4.15a (3.1/7.8) P2 = 0.019
Microcirculatory flow peak (PU)	14.7 (11.8/18.3)	27.5c (22.2/44.4) P3 = 0.002	18.2 (8.15/18.7)	20.1 (16.7/24.6)
Microcirculatory flow peak index (%)	340 (232/443)	218.5 (125/488)	373 (223/449)	508 (336/544) P2 = 0.045
Time of hyperemic response (s)	15 (10/25)	17.5 (10/30)	20 (20/25)	20 (15/90)
Velocity of hyperemic response (PU/s)	0.62 (0.50/0.81)	0.56 (0.14/1.19)	0.52 (0.15/0.55)	0.81 (0.21/1.09)
Time of half-recovery (s)	45 (15/75)	30 (5/60)	35 (20/70)	40 (30/130)
Speed of half-recovery (PU/s)	0.18 (0.14/0.34)	0.96 (0.16/1.54)	0.2 (0.11/0.28)	0.28 (0.09/0.49)
Time of full recovery (s)	247 (205/380)	212 (40/600)	147 (125/190)	400 (90/600)
Duration of hyperemic response (s)	270 (180/300)	242 (55/660)	165 (150/210)	515 (120/700)
Intensity (area) of hyperemic response (relative units)	1127 (705/1830)	2799 (193/6216)	1575 (474/2202)	3804 (1110/5084)

^aP < 0.05 vs DCY;

^cP < 0.05 vs corresponding norm. DCY: Dupuytren’s contracture patients in younger; DCO: Dupuytren’s contracture patients in older.