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- Publisher Website: 10.1046/j.1524-4725.2000.00039.x
- Scopus: eid_2-s2.0-0033853352
- PMID: 10940060
- WOS: WOS:000088634600007
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Article: An In vivo Trial Comparing the Use of Different Types of 532 nm Nd:YAG Lasers in the Treatment of Facial Lentigines in Oriental Patients
Title | An In vivo Trial Comparing the Use of Different Types of 532 nm Nd:YAG Lasers in the Treatment of Facial Lentigines in Oriental Patients |
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Authors | |
Issue Date | 2000 |
Publisher | Blackwell Publishing, Inc. |
Citation | Dermatologic Surgery, 2000, v. 26 n. 8, p. 743-749 How to Cite? |
Abstract | Background. Versapulse is a system that consists of four laser modalities and was developed with the aim of increasing cost-effectiveness. However, as these lasers share a common power supply, for the Q-switched (QS) Nd:YAG 532 nm laser a large spot diameter is necessary to lower the fluence to a suitable level. This can increase the risk of hyperpigmentation when used for the treatment of lentigines in dark-skinned patients.
Objective. The aim of our study was to access the clinical efficacy and the complication rate of the Versapulse QS Nd:YAG 532 nm laser, the Versapulse long-pulsed Nd:YAG 532 nm laser (without the chill tip), and a conventional QS Nd:YAG 532 nm laser in the treatment of lentigines in Chinese patients.
Methods. Thirty-four Chinese patients with lentigines were randomized to receive laser surgery, with one side of the face treated by one laser and the other side treated by a different system. Patients were monitored for 6 weeks to assess the degree of clearing, hyperpigmentation, hypopigmentation, and erythema. Assessments involved patients interviewed using a visual analog questionnaire and two blinded observers who evaluated the pre- and posttreatment clinical photographs.
Results. The Versapulse QS Nd:YAG 532 nm laser was associated with a statistically higher risk of complications. The Versapulse long-pulsed Nd:YAG 532 nm laser was compatible with the conventional QS Nd:YAG 532 nm laser in terms of clinical efficacy and complication rates.
Conclusion. The Versapulse long-pulsed 532 nm laser is more effective and should be used instead of the Versapulse QS Nd:YAG 532 nm laser for the treatment of lentigines in dark-skinned patients. |
Persistent Identifier | http://hdl.handle.net/10722/222953 |
ISSN | 2023 Impact Factor: 2.5 2023 SCImago Journal Rankings: 0.695 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Chan, HH | - |
dc.contributor.author | Fung, WKK | - |
dc.contributor.author | Ying, SY | - |
dc.contributor.author | Kono, T | - |
dc.date.accessioned | 2016-02-16T08:53:02Z | - |
dc.date.available | 2016-02-16T08:53:02Z | - |
dc.date.issued | 2000 | - |
dc.identifier.citation | Dermatologic Surgery, 2000, v. 26 n. 8, p. 743-749 | - |
dc.identifier.issn | 1076-0512 | - |
dc.identifier.uri | http://hdl.handle.net/10722/222953 | - |
dc.description.abstract | Background. Versapulse is a system that consists of four laser modalities and was developed with the aim of increasing cost-effectiveness. However, as these lasers share a common power supply, for the Q-switched (QS) Nd:YAG 532 nm laser a large spot diameter is necessary to lower the fluence to a suitable level. This can increase the risk of hyperpigmentation when used for the treatment of lentigines in dark-skinned patients. Objective. The aim of our study was to access the clinical efficacy and the complication rate of the Versapulse QS Nd:YAG 532 nm laser, the Versapulse long-pulsed Nd:YAG 532 nm laser (without the chill tip), and a conventional QS Nd:YAG 532 nm laser in the treatment of lentigines in Chinese patients. Methods. Thirty-four Chinese patients with lentigines were randomized to receive laser surgery, with one side of the face treated by one laser and the other side treated by a different system. Patients were monitored for 6 weeks to assess the degree of clearing, hyperpigmentation, hypopigmentation, and erythema. Assessments involved patients interviewed using a visual analog questionnaire and two blinded observers who evaluated the pre- and posttreatment clinical photographs. Results. The Versapulse QS Nd:YAG 532 nm laser was associated with a statistically higher risk of complications. The Versapulse long-pulsed Nd:YAG 532 nm laser was compatible with the conventional QS Nd:YAG 532 nm laser in terms of clinical efficacy and complication rates. Conclusion. The Versapulse long-pulsed 532 nm laser is more effective and should be used instead of the Versapulse QS Nd:YAG 532 nm laser for the treatment of lentigines in dark-skinned patients. | - |
dc.language | eng | - |
dc.publisher | Blackwell Publishing, Inc. | - |
dc.relation.ispartof | Dermatologic Surgery | - |
dc.rights | The definitive version is available at www.blackwell-synergy.com | - |
dc.subject.mesh | Erythema - etiology | - |
dc.subject.mesh | Facial Dermatoses - pathology - surgery | - |
dc.subject.mesh | Hypopigmentation - etiology | - |
dc.subject.mesh | Laser Therapy - adverse effects | - |
dc.subject.mesh | Lentigo - pathology - surgery | - |
dc.title | An In vivo Trial Comparing the Use of Different Types of 532 nm Nd:YAG Lasers in the Treatment of Facial Lentigines in Oriental Patients | - |
dc.type | Article | - |
dc.identifier.email | Chan, HH: hhlchan@hkucc.hku.hk | - |
dc.identifier.doi | 10.1046/j.1524-4725.2000.00039.x | - |
dc.identifier.pmid | 10940060 | - |
dc.identifier.scopus | eid_2-s2.0-0033853352 | - |
dc.identifier.hkuros | 60594 | - |
dc.identifier.volume | 26 | - |
dc.identifier.issue | 8 | - |
dc.identifier.spage | 743 | - |
dc.identifier.epage | 749 | - |
dc.identifier.isi | WOS:000088634600007 | - |
dc.publisher.place | United States | - |
dc.identifier.issnl | 1076-0512 | - |