Self-Expandable Retainer for Endoscopic Visualization in the External Auditory Canal: Proof of Concept in Human Cadavers
This study was conducted to investigate the efficacy of a self-expandable retainer (SER) for endoscopic visualization of the external auditory canal (EAC). Tympanomeatal flap (TMF) elevation was performed in six cadaveric heads. Two different types of SER were placed. The procedural feasibility was...
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MDPI AG
2020-03-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/10/5/1877 |
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| author | Yehree Kim Jeon Min Kang Ho-Young Song Woo Seok Kang Jung-Hoon Park Jong Woo Chung |
| author_facet | Yehree Kim Jeon Min Kang Ho-Young Song Woo Seok Kang Jung-Hoon Park Jong Woo Chung |
| author_sort | Yehree Kim |
| collection | DOAJ |
| description | This study was conducted to investigate the efficacy of a self-expandable retainer (SER) for endoscopic visualization of the external auditory canal (EAC). Tympanomeatal flap (TMF) elevation was performed in six cadaveric heads. Two different types of SER were placed. The procedural feasibility was assessed by endoscopic images. Technical success rate, procedure time, endoscopy lens cleaning, and presence of mucosal injuries were analyzed. TMF elevation and SER placement were successful in all specimens and there were no procedure-related complications. The mean procedure time with the SERs was significantly shorter than without (<i>p</i> < 0.001). The mean number of times the endoscopy lens was cleaned during the procedure was significantly lower in the SER group (<i>p</i> < 0.001). In the SER group, endoscopy insertion into the EAC was easier without tissue contact with the lens during the TMF elevation compared with the non-SER group. There were no mucosal injuries. SER placement is effective for endoscopic visualization via the expanded and straightened EAC. A fully covered type of SER is preferable. The device can be useful for endoscopic ear surgery, reducing procedure time and reducing the need for endoscopy lens cleaning during the procedure. |
| first_indexed | 2024-12-23T21:27:12Z |
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| id | doaj.art-ec0da5dfda6e4fac82f6e1815a5b0d0d |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-12-23T21:27:12Z |
| publishDate | 2020-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-ec0da5dfda6e4fac82f6e1815a5b0d0d2022-12-21T17:30:34ZengMDPI AGApplied Sciences2076-34172020-03-01105187710.3390/app10051877app10051877Self-Expandable Retainer for Endoscopic Visualization in the External Auditory Canal: Proof of Concept in Human CadaversYehree Kim0Jeon Min Kang1Ho-Young Song2Woo Seok Kang3Jung-Hoon Park4Jong Woo Chung5Department of Otorhinolaryngology-Head & Neck Surgery, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 05505, KoreaBiomedical Engineering Research Center, Asan Institute for Life Scineces, Asan Medical Center, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 05505, KoreaDepartment of Radiology, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 05505, KoreaDepartment of Otorhinolaryngology-Head & Neck Surgery, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 05505, KoreaBiomedical Engineering Research Center, Asan Institute for Life Scineces, Asan Medical Center, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 05505, KoreaDepartment of Otorhinolaryngology-Head & Neck Surgery, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 05505, KoreaThis study was conducted to investigate the efficacy of a self-expandable retainer (SER) for endoscopic visualization of the external auditory canal (EAC). Tympanomeatal flap (TMF) elevation was performed in six cadaveric heads. Two different types of SER were placed. The procedural feasibility was assessed by endoscopic images. Technical success rate, procedure time, endoscopy lens cleaning, and presence of mucosal injuries were analyzed. TMF elevation and SER placement were successful in all specimens and there were no procedure-related complications. The mean procedure time with the SERs was significantly shorter than without (<i>p</i> < 0.001). The mean number of times the endoscopy lens was cleaned during the procedure was significantly lower in the SER group (<i>p</i> < 0.001). In the SER group, endoscopy insertion into the EAC was easier without tissue contact with the lens during the TMF elevation compared with the non-SER group. There were no mucosal injuries. SER placement is effective for endoscopic visualization via the expanded and straightened EAC. A fully covered type of SER is preferable. The device can be useful for endoscopic ear surgery, reducing procedure time and reducing the need for endoscopy lens cleaning during the procedure.https://www.mdpi.com/2076-3417/10/5/1877self-expandable metallic stentear canalcadaverear speculumendoscopy |
| spellingShingle | Yehree Kim Jeon Min Kang Ho-Young Song Woo Seok Kang Jung-Hoon Park Jong Woo Chung Self-Expandable Retainer for Endoscopic Visualization in the External Auditory Canal: Proof of Concept in Human Cadavers Applied Sciences self-expandable metallic stent ear canal cadaver ear speculum endoscopy |
| title | Self-Expandable Retainer for Endoscopic Visualization in the External Auditory Canal: Proof of Concept in Human Cadavers |
| title_full | Self-Expandable Retainer for Endoscopic Visualization in the External Auditory Canal: Proof of Concept in Human Cadavers |
| title_fullStr | Self-Expandable Retainer for Endoscopic Visualization in the External Auditory Canal: Proof of Concept in Human Cadavers |
| title_full_unstemmed | Self-Expandable Retainer for Endoscopic Visualization in the External Auditory Canal: Proof of Concept in Human Cadavers |
| title_short | Self-Expandable Retainer for Endoscopic Visualization in the External Auditory Canal: Proof of Concept in Human Cadavers |
| title_sort | self expandable retainer for endoscopic visualization in the external auditory canal proof of concept in human cadavers |
| topic | self-expandable metallic stent ear canal cadaver ear speculum endoscopy |
| url | https://www.mdpi.com/2076-3417/10/5/1877 |
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