title: Modified Tessari Tourbillon technique for making foam sclerotherapy with silicone-free syringes.
abstract: The longevity of foam made using sodium tetradecyl sulphate and gas (air or a CO2:O2 mixture) is increased significantly if silicone-free syringes are used over the normal syringes containing silicone oil lubrication. However, the plungers in silicone-free syringes start sticking after several passages when making foam for sclerotherapy, preventing the smooth injection of the resulting foam. We describe a three syringe technique which allows foam to be made using the Tessari Tourbillon 'three-way stopcock' principle between two syringes, but with the foam ending up in a third syringe which has not undergone multiple passages of the plunger. This allows a smoother injection of the resultant foam, which is particularly useful when injecting small diameter veins under ultrasound control.
authors.affiliation: The Whiteley Clinic, Stirling House, Guildford, Surrey, UK Faculty of Health and Biomedical Sciences, University of Surrey, Guildford, UK mark@thewhiteleyclinic.co.uk.
authors.forename: Mark S
authors.initials: MS
authors.lastname: Whiteley
authors.affiliation: The Whiteley Clinic, Stirling House, Guildford, Surrey, UK.
authors.forename: Salil B
authors.initials: SB
authors.lastname: Patel
mesh_terms: D002245:Carbon Dioxide / Q000737:chemistry; D004867:Equipment Design; D005740:Gases; D006801:Humans; D007275:Injections, Intravenous; D009821:Oils; D010100:Oxygen / Q000737:chemistry; D012597:Sclerosing Solutions / Q000737:chemistry*; D015911:Sclerotherapy / Q000295:instrumentation / Q000379:methods*; D012828:Silicones / Q000737:chemistry; D013594:Syringes; D014463:Ultrasonography; D014648:Varicose Veins / Q000628:therapy*; D014680:Veins / Q000187:drug effects
chemical_list: D005740:Gases; D009821:Oils; D012597:Sclerosing Solutions; D012828:Silicones; D002245:Carbon Dioxide; D010100:Oxygen
keywords: Sclerotherapy; foam sclerotherapy; technique