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Conference Paper: Safety study of transcutaneous focused ultrasound for non-invasive skin tightening in Asians

TitleSafety study of transcutaneous focused ultrasound for non-invasive skin tightening in Asians
Authors
KeywordsMedical sciences
Surgery physics
Optics
Issue Date2009
PublisherJohn Wiley & Sons, Inc. The Journal's web site is located at http://www3.interscience.wiley.com/cgi-bin/jhome/34073
Citation
The 29th Annual Scientific Conference of the American Society for Laser Medicine and Surgery (ASLMS), National Harbor, MD., 3-5 April 2009. In Lasers in Surgery and Medicine, 2009, v. 41 S21, p. 46, abstract no. 132 How to Cite?
AbstractBACKGROUND: The objective of this study is to determine the safety of a novel focused ultrasound device (Ulthera System1) in the treatment of facial skin laxity in Asians. STUDY: The patients received one to two full-face treatments with the transcutaneous focused ultrasound device. Three transducers (7.5 MHz, 3.0mmdepth; 7.5 MHz, 4.5mmdepth; 4.0 MHz, 4.5mm depth) were used to deliver a single pass of microthermal areas of coagulation without any topical anaesthetics. Standardized photos were taken with the Canfield Visia CR system1 and all patients were clinically assessed for adverse effects up to 6 months post treatment. Subjective assessments were also evaluated with patient questionnaires. RESULTS: 49 Chinese patients (skin type III–IV, mean age 53.3) completed a total of 67 treatment sessions. Focal bruising and numbness were present in 13.42% and 1.49% of treatment sessions respectively at 7 days post-treatment. Two cases of mild post-inflammatory hyperpigmentation over the forehead were noted at one month post-treatment, both of which responded to topical bleaching agent. One patient experienced focal fasciculation over the lower eyelid at one month post-treatment, clinically consistent with hemifacial spasm, which was unlikely to be device-related. The treatments were well-tolerated with an average pain score of up to 6.88 out of 10. CONCLUSION: Transcutaneous high intensity focused ultrasound appears to be safe and well-tolerated for non-invasive facial skin tightening in Asians. Adverse events are mild and transient. No serious permanent or delayed side-effects were noted up to 6 months post treatment.
DescriptionThis journal suppl. entitled: Supplement: American Society for Laser Medicine and Surgery Twenty-Ninth Annual Conference April 1–5, 2009
Persistent Identifierhttp://hdl.handle.net/10722/63918
ISSN
2015 Impact Factor: 2.135
2015 SCImago Journal Rankings: 0.977

 

DC FieldValueLanguage
dc.contributor.authorChan, NPYen_HK
dc.contributor.authorShek, SYNen_HK
dc.contributor.authorYu, CSen_HK
dc.contributor.authorChan, HHLen_HK
dc.date.accessioned2010-07-13T04:35:40Z-
dc.date.available2010-07-13T04:35:40Z-
dc.date.issued2009en_HK
dc.identifier.citationThe 29th Annual Scientific Conference of the American Society for Laser Medicine and Surgery (ASLMS), National Harbor, MD., 3-5 April 2009. In Lasers in Surgery and Medicine, 2009, v. 41 S21, p. 46, abstract no. 132-
dc.identifier.issn0196-8092-
dc.identifier.urihttp://hdl.handle.net/10722/63918-
dc.descriptionThis journal suppl. entitled: Supplement: American Society for Laser Medicine and Surgery Twenty-Ninth Annual Conference April 1–5, 2009en_HK
dc.description.abstractBACKGROUND: The objective of this study is to determine the safety of a novel focused ultrasound device (Ulthera System1) in the treatment of facial skin laxity in Asians. STUDY: The patients received one to two full-face treatments with the transcutaneous focused ultrasound device. Three transducers (7.5 MHz, 3.0mmdepth; 7.5 MHz, 4.5mmdepth; 4.0 MHz, 4.5mm depth) were used to deliver a single pass of microthermal areas of coagulation without any topical anaesthetics. Standardized photos were taken with the Canfield Visia CR system1 and all patients were clinically assessed for adverse effects up to 6 months post treatment. Subjective assessments were also evaluated with patient questionnaires. RESULTS: 49 Chinese patients (skin type III–IV, mean age 53.3) completed a total of 67 treatment sessions. Focal bruising and numbness were present in 13.42% and 1.49% of treatment sessions respectively at 7 days post-treatment. Two cases of mild post-inflammatory hyperpigmentation over the forehead were noted at one month post-treatment, both of which responded to topical bleaching agent. One patient experienced focal fasciculation over the lower eyelid at one month post-treatment, clinically consistent with hemifacial spasm, which was unlikely to be device-related. The treatments were well-tolerated with an average pain score of up to 6.88 out of 10. CONCLUSION: Transcutaneous high intensity focused ultrasound appears to be safe and well-tolerated for non-invasive facial skin tightening in Asians. Adverse events are mild and transient. No serious permanent or delayed side-effects were noted up to 6 months post treatment.-
dc.languageengen_HK
dc.publisherJohn Wiley & Sons, Inc. The Journal's web site is located at http://www3.interscience.wiley.com/cgi-bin/jhome/34073-
dc.relation.ispartofLasers in Surgery and Medicine-
dc.rightsLasers in Surgery and Medicine. Copyright © John Wiley & Sons, Inc.-
dc.subjectMedical sciences-
dc.subjectSurgery physics-
dc.subjectOptics-
dc.titleSafety study of transcutaneous focused ultrasound for non-invasive skin tightening in Asiansen_HK
dc.typeConference_Paperen_HK
dc.identifier.emailShek, SYN: samantha.shek@gmail.comen_HK
dc.identifier.emailYu, CS: carolsyu@hku.hken_HK
dc.identifier.emailChan, HHL: hhlchan@hkucc.hku.hk-
dc.identifier.authorityYu, CS=rp00305en_HK
dc.identifier.doi10.1002/lsm.20783-
dc.identifier.hkuros164705en_HK
dc.identifier.volume41-
dc.identifier.issueS21-
dc.identifier.spage46-
dc.identifier.epage46-
dc.publisher.placeUnited States-

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