OPERATION AND TREATMENT PROTOCOLS
55
Mistral User Manual
4.7.
Acne Treatment
4.7.1.
Clinical Background
LHE Acne phototherapy is based on the process of destruction of the
Propionibacterium acnes (P. acnes). P.acnes are slow growing
anaerobic bacteria which develop in blocked follicles, and produce
porphyrins as part of their normal metabolism. Exposure of porphyrins
to visible light results in a photodynamic reaction of these compounds,
and destruction of the P. acnes.
Fifty subjects with mild and moderate inflammatory acne, including
pustular inflammatory acne, participated in a multicenter blinded
controlled study of LHE acne clearance. The subjects were Fitzpatrick
skin Types I-IV.
Based upon a pre-treatment test on each subject, the highest energy
level that showed no side effects in that patient was used for
treatment.
Results: A mean decrease of 23.1 lesions (60.2%) was achieved
between the baseline and the end of the follow-up period compared to
a mean increase of 6.2 lesions (32.4%) for the control. All side effects
were minor and transient.
In another study, good clearance (over 60%) of non-inflammatory and
inflammatory lesions was observed. This clearance continued to
improve 2 months following the last treatment, reaching a 90%
decrease in lesion count from baseline.
4.7.2.
Indications
The Mistral AC handpiece is intended to provide phototherapeutic light
to the body. The Mistral AC handpiece is generally indicated to treat
Warning: Make sure you have the proper handpiece for AC treaments
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