Variability in the Management of Superficial Venous Thrombophlebitis across Practitioners Based in North America and the Global Community

Table 2

Initial and follow-up imaging studies for diagnosing SVT among practitioners in North America and the global community.

Variable	North America, (%)	Global Community, (%)	value
Type of initial duplex ultrasound			0.046
Bilateral lower extremity	181 (49.6%)	71 (58.2%)
Unilateral lower extremity	145 (39.7%)	42 (34.4%)
No ultrasound needed	22 (6%)	7 (5.7%)
No answer	17 (4.7%)	2 (1.6%)
After diagnosis of saphenous SVT, repeat ultrasound			0.88
1 week or less	105 (28.8%)	39 (32%)
1–4 weeks	63 (17.3%)	23 (18.9%)
1–3 months	52 (14.3%)	11 (9%)
Only if symptoms worsen	62 (17%)	17 (13.9%)
Other/no answer	83 (22.7%)	32 (26.2%)
After diagnosis of SVT of superficial tributaries, repeat ultrasound			0.30
1 week or less	74 (20.3%)	28 (23%)
1–4 weeks	64 (17.5%)	23 (18.9%)
1–3 months	50 (13.7%)	19 (15.6%)
Only if symptoms worsen	95 (26%)	28 (23%)
Other/no answer	82 (22.5%)	24 (19.7%)