PES should be performed in selected patients in order to obtain the best outcomes and minimize complications. No or delayed visualization of drainage vein on initial direct puncture venogram, a well-defined margin on MRI, and female gender were statistically significant predictors of a "good response" to PES and may be useful in selecting patients.
Soft tissue injuries occurred in 11.9% of patients (68 of 573) and neuropathies occurred in 8.6% (49 of 573) after undergoing embolo/sclerotherapy. Most of these complications recovered by themselves (58.9% from soft tissue injury and 85.1% from neuropathy). Our results suggest that embolo/sclerotherapy has an acceptable incidence of soft tissue injury and neuropathy, when considering the effect that the CVM had on the quality of life before treatment, so embolo/sclerotherapy is recommended as a treatment modality for CVM.
• Foam STS sclerotherapy is effective in VM, with low risk of complications. • Relief of pain tends to be dramatic in patients with severe pain. • Location of VM is a predictor of pain improvement. • The presence of a draining vein does not affect foam sclerotherapy.
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