Document Detail


Clinical pilot study of intense ultrasound therapy to deep dermal facial skin and subcutaneous tissues.
MedLine Citation:
PMID:  17372061     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: To evaluate the clinical safety of intense ultrasound in the treatment of the dermis and subcutaneous tissues of the face and neck in terms of skin inflammation, pain, adverse events, and histologic features.
DESIGN: In an open-label, phase 1 study, patients scheduled to undergo a rhytidectomy were enrolled into immediate (face-lift surgery within 24 hours of intense ultrasound treatment) and delayed (face-lift surgery 4-12 weeks after treatment) treatment groups. Intense ultrasound treatments were performed as a series of several linear exposures delivered 1.5 to 2.0 mm apart with the use of 1 of 3 available handpieces with different focal depths. Subject pain ratings and standardized digital photographs were obtained at uniform points. Photographs were blindly rated for inflammation. Histologic evaluation of treated tissues was performed with nitroblue tetrazolium chloride viability stain.
RESULTS: Fifteen subjects with a mean +/- SD age of 53 +/- 7 years were enrolled. Seven subjects were nonrandomly assigned to the immediate group and 8 were in the delayed group. On histologic examination, thermal injury zones were consistently identified in the dermis at exposure levels greater than 0.5 J as focal areas of denatured collagen. At this threshold level or above, most patient exposures were associated with transient superficial skin erythema and slight to mild discomfort on a standardized pain scale. No other adverse effects were noted in any case. Thermal injury zones were produced in the expected linear pattern and were consistent in size and depth from zone to zone. Increasing source power did not increase the depth of the epicenter of the thermal injury zone. Epidermis was spared in all cases.
CONCLUSION: In this first clinical study of intense ultrasound therapy to facial tissues, the intense ultrasound system allowed for the safe and well-tolerated placement of targeted, precise, and consistent thermal injury zones in the dermis and subcutaneous tissues with sparing of the epidermis.
Authors:
Richard E Gliklich; W Matthew White; Michael H Slayton; Peter G Barthe; Inder Raj S Makin
Publication Detail:
Type:  Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Archives of facial plastic surgery     Volume:  9     ISSN:  1521-2491     ISO Abbreviation:  Arch Facial Plast Surg     Publication Date:    2007 Mar-Apr
Date Detail:
Created Date:  2007-03-20     Completed Date:  2007-05-08     Revised Date:  2012-09-24    
Medline Journal Info:
Nlm Unique ID:  100883500     Medline TA:  Arch Facial Plast Surg     Country:  United States    
Other Details:
Languages:  eng     Pagination:  88-95     Citation Subset:  IM    
Affiliation:
Division of Facial Plastic and Reconstructive Surgery, Department of Otology and Laryngology, Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, MA 02114, USA. Richard_Gliklich@meei.harvard.edu
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MeSH Terms
Descriptor/Qualifier:
Adult
Dermis / pathology*
Equipment Design
Face
Female
Humans
Inflammation / epidemiology
Male
Middle Aged
Pilot Projects
Prospective Studies
Rhytidoplasty / instrumentation*,  methods
Subcutaneous Tissue / pathology*
Treatment Outcome
Ultrasonic Therapy / instrumentation,  methods*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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