A systematic review including 20 studies with a total of 1,031 subjects was abstracted in DARE. There was one RCT and 19 case series. The ulcer healing rate ranged from 56 to 100% with SEPS. When the studies were pooled, ulcers healed in 88% (95% CI: 83 to 92) of limbs. In a subset of 9 studies, 40% (95% CI: 27 to 53) of ulcers healed within 30 days, 64% (95% CI: 53 to 74) within 60 days, and 86% (95% CI: 77 to 92) after 60 days. Ulcer recurred in 16% (95% CI: 10, 24) of patients with CEAP class 5 disease at surgery, 16% (95% CI: 11 to 21) of patients with CEAP class 6 disease, and 13% (95% CI: 9 to 18) of patients with CEAP class 5 or 6 disease at surgery. Early adverse events included wound infection (6% of patients, 95% CI: 4 to 8), haematoma (9% of patients, 95% CI: 6 to 13), neuralgia (7% of patients, 95% CI: 6 to 9) and deep vein thrombosis (1% of patients, 95% CI: 0.7 to 3).
Comment: The quality of evidence is downgraded because the data are mainly from case series.