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Continuous cooling system in conjunction with laser surgery for ear reshaping.

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Title: Continuous cooling system in conjunction with laser surgery for ear reshaping.
Authors: Hsiao, Yen-Chang1, Ting, Kuen2, Su, Yun-Liang3, Chang, Cheng-Jen1,4,5,6 chengjen@h.tmu.edu.tw
Source: Lasers in Medical Science. Mar2020, Vol. 35 Issue 2, p387-393. 7p.
Subjects: Laser surgery, Ear cartilage molding, Spray cooling, Otoplasty, Ear abnormalities, Burns & scalds
Abstract: When the cartilage on the prominent ears is reshaped, the arising stress returns the tissue to its initial configuration. Laser irradiation of areas of maximal stress leads to stress relaxation and results in a stable configuration. Sixty auricles were harvested from 30 New Zealand white rabbits and cut into a rectangle measuring 50 mm by 25 mm with an average thickness of approximately 1.3 mm. Bilateral skin was included for ex vivo studies. Continuous cryogen spray cooling (CSC) with laser energy was delivered to the exposed cartilage for reshaping. In clinical applications, from January 2006 to December 2016, a total of 50 patients with 100 bat ears who underwent CO2 laser reshaping (otoplasty) were assessed. A continuous cooling system (4 °C) in conjunction with a CO2 laser was applied to make a retroauricular-approached incision and reshape the ear cartilage. The well cartilage bending correlated with the different parameters demonstrated in the continuous CSC protected group. All 100 (100%) of the subjects experienced early complications (≤ 1 month) related to laser exposure with swelling, while 5 (5%) experienced ecchymosis, 2 (2%) minimal hematoma, 2 (2%) scarring, 1 (1%) minor infection, 1 (1%) under correction, 1 (1%) overcorrection, and 1 (1%) relapse. These problems were corrected and/or had resolved after 3 months. All patients achieved good to excellent results in our final outcome assessment (> 6 months). Laser reshaping has a potential use in certain surgical procedures involving the cartilage. The appropriate conditions for laser ear reshaping clearly depend on the laser wavelength used, energy controlling, and tissue optical properties. [ABSTRACT FROM AUTHOR]
Copyright of Lasers in Medical Science is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Continuous cooling system in conjunction with laser surgery for ear reshaping.
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  Data: <searchLink fieldCode="AR" term="%22Hsiao%2C+Yen-Chang%22">Hsiao, Yen-Chang</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Ting%2C+Kuen%22">Ting, Kuen</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Su%2C+Yun-Liang%22">Su, Yun-Liang</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Chang%2C+Cheng-Jen%22">Chang, Cheng-Jen</searchLink><relatesTo>1,4,5,6</relatesTo><i> chengjen@h.tmu.edu.tw</i>
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  Data: <searchLink fieldCode="JN" term="%22Lasers+in+Medical+Science%22">Lasers in Medical Science</searchLink>. Mar2020, Vol. 35 Issue 2, p387-393. 7p.
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  Data: <searchLink fieldCode="DE" term="%22Laser+surgery%22">Laser surgery</searchLink><br /><searchLink fieldCode="DE" term="%22Ear+cartilage+molding%22">Ear cartilage molding</searchLink><br /><searchLink fieldCode="DE" term="%22Spray+cooling%22">Spray cooling</searchLink><br /><searchLink fieldCode="DE" term="%22Otoplasty%22">Otoplasty</searchLink><br /><searchLink fieldCode="DE" term="%22Ear+abnormalities%22">Ear abnormalities</searchLink><br /><searchLink fieldCode="DE" term="%22Burns+%26+scalds%22">Burns & scalds</searchLink>
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  Data: When the cartilage on the prominent ears is reshaped, the arising stress returns the tissue to its initial configuration. Laser irradiation of areas of maximal stress leads to stress relaxation and results in a stable configuration. Sixty auricles were harvested from 30 New Zealand white rabbits and cut into a rectangle measuring 50 mm by 25 mm with an average thickness of approximately 1.3 mm. Bilateral skin was included for ex vivo studies. Continuous cryogen spray cooling (CSC) with laser energy was delivered to the exposed cartilage for reshaping. In clinical applications, from January 2006 to December 2016, a total of 50 patients with 100 bat ears who underwent CO2 laser reshaping (otoplasty) were assessed. A continuous cooling system (4 °C) in conjunction with a CO2 laser was applied to make a retroauricular-approached incision and reshape the ear cartilage. The well cartilage bending correlated with the different parameters demonstrated in the continuous CSC protected group. All 100 (100%) of the subjects experienced early complications (≤ 1 month) related to laser exposure with swelling, while 5 (5%) experienced ecchymosis, 2 (2%) minimal hematoma, 2 (2%) scarring, 1 (1%) minor infection, 1 (1%) under correction, 1 (1%) overcorrection, and 1 (1%) relapse. These problems were corrected and/or had resolved after 3 months. All patients achieved good to excellent results in our final outcome assessment (> 6 months). Laser reshaping has a potential use in certain surgical procedures involving the cartilage. The appropriate conditions for laser ear reshaping clearly depend on the laser wavelength used, energy controlling, and tissue optical properties. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Lasers in Medical Science is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s10103-019-02831-3
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        Text: English
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        Type: general
      – SubjectFull: Ear cartilage molding
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      – SubjectFull: Spray cooling
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      – SubjectFull: Otoplasty
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      – SubjectFull: Ear abnormalities
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      – SubjectFull: Burns & scalds
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      – TitleFull: Continuous cooling system in conjunction with laser surgery for ear reshaping.
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            NameFull: Hsiao, Yen-Chang
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            NameFull: Ting, Kuen
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              M: 03
              Text: Mar2020
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              Y: 2020
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