IRCT20190908044730N2 IRCT 2020-03-29 Esfahan University of Medical Sciences Shockwave therapy for chronic venous wounds Extracorporeal shockwave therapy for chronic venous wounds: A randomized controlled trail 2018-10-23 anticipated 44 Complete https://irct.ir/trial/46400 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Used, Assignment: Parallel, Purpose: Treatment, Randomization description: The patients were randomized into intervention and control group using random allocation software, Blinding description: Shockwave machine is used in both the control and intervention group, but the machine is off and doesn't work in the control group. So the patients are unaware of which intervention they receive. Also, in the follow-ups, patients will be assessed by a doctor who is blinded to the participants' groups. N/A Patients with chronic venous ulcers. Intervention 1: Intervention group: Extracorporeal Shockwave Therapy (ESWT) along with compression bandaging. Shockwave machine: electromagnetic type Dornier AR2 machine (the standard electromagnetic DUOLITH SD1, Storz Medical, Tägerwilen, Switzerland). Each ESWT session consists of 100 impulses per cm2 of the row wound area. The total energy applied for each impulse is 3.5 mJ with a frequency of 5 Hz. Patients receive one session of ESWT weekly for four weeks. Intervention 2: Control group: Sham extracorporeal shock wave therapy (ESWT) along with compression bandaging. Shockwave machine: electromagnetic type Dornier AR2 machine (the standard electromagnetic DUOLITH SD1, Storz Medical, Tägerwilen, Switzerland). The machine is off, so the control group receive no shockwave. Patients receive one session of sham ESWT weekly for four weeks. No - There is not a plan to make this available Justification or reason for not sharing IPD is there is no plan to make this available at the moment.