| Guideline No. |
GRADE of recommendation |
Level of evidence |
| 13.1 |
1 |
B |
| We recommend against selective treatment of incompetent perforating veins in patients with simple varicose veins (CEAP class C2). |
| Guideline No. |
GRADE of recommendation |
Level of evidence |
| 13.2 |
2 |
B |
| We suggest treatment of “pathologic” perforating veins that includes those with outward flow of ≥500-ms duration, with a diameter of ≥3.5 mm, located beneath healed or open venous ulcer (class C5-C6). |
| Guideline No. |
GRADE of recommendation |
Level of evidence |
| 13.3 |
2 |
C |
| For treatment of “pathologic” perforating veins, we suggest subfascial endoscopic perforating vein surgery, ultrasonographically guided sclerotherapy, or thermal ablations. |