2) Heating
HT treatments were delivered by means of an
8 MHz capacitive heating device,the“Thermotron
RF-8” (Yamamoto Vinita Co., Ltd., Osaka,
Japan). Electromagnetic power ranging from 206
to 1500 W, depending on the treatment site, was
applied between a pair of electrodes with
diameters ranging from 7 to 30 cm (depending on
the heating site) which were placed on the
opposite sides of the target area. A saline
solution maintained at 2-37℃ was circulated in
the boluses to avoid overheating of the skin. For
premedication, 50 mg indomethacin (i.r.) was administered 30 min before HT. A 1% xylocaine topical gel was applied to the skin to decrease the
sensation of heat. Blood pressure and pulse were monitored during treatment. The time for one HT
session was 40-60 min. HT was performed once a week