Pioneering Varicose Vein Treatment Gets Patients Back On Their Feet In No Time
Released on: September 19, 2011, 3:13 pm
Varicose veins can be painful and unsightly, with treatment often meaning surgery under general anaesthetic and a long recovery period.
While the traditional surgical approach has meant painful vein
stripping, many UK hospitals now offer minimally invasive catheter
technology that enables even severe varicose veins to be successfully
treated in an outpatient setting, under a local anaesthetic.
Taking just a few minutes, a device is inserted into the diseased vein, where a
catheter or fibre delivers either radio frequency or laser energy to heat and seal
the vessel. The technique is extremely successful and far less painful and traumatic
to the patient than vein stripping.
Endovenous laser (EVL) devices utilise an optical fibre to deliver extremely high
levels of heat – over 700 degrees centigrade – that boils the blood in the vein to
create a clotting effect that seals the vein as the device is withdrawn.
Radiofrequency devices operate at far lower temperatures to heat and shrink the vein
walls, limiting the impact on surrounding tissues and, according to a clinical
study, causing significantly less pain and bruising than laser.
Vascular surgeons using the VNUS® ClosureFAST™ catheter, the only radiofrequency
device on the market today for the treatment of venous reflux, report that most
patients return to normal activity almost immediately following the procedure, with
little or no post-operative pain.
Radiofrequency endovenous ablation is a minimally invasive procedure for treating
venous reflux disease, using Radiofrequency to heat and seal diseased veins, thereby
reducing or eliminating existing varicose veins.
With the VNUS® ClosureFAST™ catheter, radiofrequency energy is delivered through a
heating element seven centimetres long, to heat the collagen within the vein walls
and cause the shrinkage and collapse of the vessel.
The closure procedure is generally performed using local anaesthesia, typically in a
hospital theatre or an outpatient facility.
A ClosureFAST™ catheter is inserted into the vein through a tiny incision below the
knee. Guided by ultrasound imaging, the vascular surgeon treats each 7cm segment of
vein with a 20-second burst of radiofrequency energy, causing the vessel to shrink
around the catheter.
The vascular surgeon withdraws the catheter, treating each segment until the entire
vessel has been sealed. On average, 45cm of vein can be treated in three to five
In a clinical trial comparing Closure to laser, patients treated
with Closure experienced less pain, less bruising and fewer complications, while a
one-year clinical data has shown the ClosureFAST™ catheter to be more than 97.4%
effective in preventing reflux recurrence.
Contact Details: COVIDIEN (UK) Commercial Ltd
154 Fareham Road
Hampshire PO13 0AS
TEL: 0800 258 5995
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