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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Painless cauterization of spider veins with the use of iontophoretic local anesthesia.

Treatment of small vascular abnormalities of the skin is painful, and injections of local anesthetic agents distort the operating field. Iontophoresis of salt-free, 4% lidocaine, with and without epinephrine, delivered to the skin from a receptacle with a semipermeable membrane, and with the use of a current-controlled electrical system, resulted in effective anesthesia of the skin for cauterization of "spider" veins. Fourteen subjects received 32 treatments. Sixteen paired areas of spider veins were anesthetized with iontophoresis of lidocaine and with lidocaine plus epinephrine 1/50,000. The duration of anesthesia with lidocaine averaged 14 minutes; relief of pain was complete in 9/16 treatments, adequate in 6/16, and inadequate in 1/16. Lidocaine plus epinephrine supplied anesthesia for 56 minutes; relief of pain was total in 14/16 treatments and adequate in the remaining two. Thus iontophoresis with the use of selected local anesthetic and iontophoretic equipment provides adequate conditions for cauterization of spider veins, a procedure poorly served by conventional local anesthesia.[1]

References

  1. Painless cauterization of spider veins with the use of iontophoretic local anesthesia. Bezzant, J.L., Stephen, R.L., Petelenz, T.J., Jacobsen, S.C. J. Am. Acad. Dermatol. (1988) [Pubmed]
 
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