• 대한기관식도과학회:학술대회논문집
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• 대한기관식도과학회 1981년도 제15차 학술대회연제순서 및 초록
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• pp.5.2-5
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• 1981

후두의 Anterior glottic web에 대한 수술적 치료방법은 1924년 Haslinger가 처음으로 Web의 성공적인 Correction예를 보고한 이래 1935년 Iglauer, 1950년 Mc Naught, 1969년 Pennington, 1970년 Montgomery등이 각기 다른 치료법을 소개하였으나 그 치료목적이 전연합부의 상피화와 동시에 Denuded Vocal Cord에 형성되는 유착을 방지하는 데에 있었다. 저자등은 최근 후두유두종 3례에서 2∼3회의 제거술후에 유발된 Anterior glottic web를 경험하여 Stainless Steel Plate를 이용한 Keel을 제작하여 사용한 결과 만족할 만한 결과를 얻었기에 문헌적 고찰을 가하여 보고하는 바이다.

• 대한후두음성언어의학회지
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• 제19권1호
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• pp.7-10
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• 2008

The early glottic cancers are traditionally treated by radiotherapy or endoscopic surgery. The excellent effectiveness of both treatment modalities for local control, larynx preservation, and disease specific death is similar. Therefore, functional voice outcome after treatment is one of the most important factors in the choice of treatment for early glottic cancer. To assess the functional outcomes and compare the voice quality in patients with early glottic cancer treated with curative intent with radiotherapy or laser cordectomy, we performed literature review. Most studies showed that the voice quality after radiation therapy is slightly better than that after laser cordectomy. Subanalysis according to types of laser cordectomy, however, indicates that voice quality depends on type of laser cordectomy. Especially, type I or type II laser cordectomy might be superior to other types of laser cordectomy and radiation therapy. We conclude that the laser cordectomy is a good surgical alternative for properly selected early glottic cancer including professional voice users.

• 대한두경부종양학회지
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• 제29권2호
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• pp.58-61
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• 2013

Early glottic cancer can be effectively treated with surgery or radiotherapy showing the comparable treatment results. Since radiation therapy may be better in terms of voice preservation, it tends to be preferred in early glottic cancer. Most common recurrence site is glottis after radiation therapy and complete remission of glottic primary site followed by local recurrence limited to neck is very rare. The authors are reporting a patient with regional recurrence of central neck lymph nodes after radiation therapy for T1a glottic cancer.

• 대한후두음성언어의학회지
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• 제13권2호
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• pp.139-144
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• 2002

Background and objectives : The various voice-conserving treatments are used for Tla staged glottic cancer. Especially, Tla staged glottic cancer has been shown excellent treatment result after laser cordectomy or radiotherapy. To evaluate which treatment results better voice after treatment made it valuable to define the exact indication and recommending treatment modality on the Tla staged glottic cancer patients. Method : The medical records of 75 patients with glottic TlaN0 cancer diagnosed at Asan medical center, University of Ulsan college of medicine form May, 1989 to July,2001 were retrospectively reviewed on the point of voice quality and oncology including 5-year survival rate and local control rate. Results : Laser cordectomy and radiotherapy showed 100% and 94.0% 5-year survival rate, respectively. And laser cordectomy had 94.3% local control rate while radiotherapy got 87.6% local control rate. Voice analysis of pretreatment and posttreatment were used to compare each result. Fundamental frequency(F0), shimmer, jitter, noise to harmony ratio(NHR), maximum confortable phonation time(MPT) and vocal efficiency(VE) were used for parameters for voice analysis. Only in shimmer and MPT, we could find significant posttreatment difference between two therapies. In addition, we reviewed the total expenses for each therapy. Conclusion : On the basis of the oncologic result, both the laser cordectomy and radiotherapy had the similar results. Laser cordectomy showed the relatively acceptable voice as radiotherapy did. Laser cordectomy cost less than radiotherapy did. Laser cordectomy can be used for treatment about Tla staged glottic cancer.

• 대한후두음성언어의학회지
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• 제14권2호
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• pp.123-128
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• 2003

Background and Objectives : In order to evaluate the result of the $CO_2$ LASER laryngomicrosurgery for the treatment of glottic stenosis after inhalation injury. Patients and Methods : We retrospectively evaluated 7 patients with inhalation injury on larynx who received their surgical treatment at the Severance hospital on Jun. 2003. The average follow-up duration was 64.9 days and they were 3men and 4women. The average patient age was 30.1 years, We evaluated the preoperative state with neck CT and stroboscopy. The operation was $CO_2$ LASER laryngomicrosurgery and Mitomycin-C application. The postoperative state was evaluated with stroboscopy at POD#6 and POD#2months. Results : 6 patients had the intubation as the first care on accident. All 7 patients showed the glottic web and after operation, the vocal cord seemed to be almost normal. The glottic area was widened as 3 times as the preoperative state at POD#6. Conclusion : We could lessen the symptoms like dyspnea and hoarseness with laryngomicrosurgery and Mitomycin-C application for patients complaining some laryngeal problems because of the inhalation injury.

• 대한후두음성언어의학회지
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• 제5권1호
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• pp.64-68
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• 1994

Anterior glottic webs shorten the free margins of the vocal cords and prevent air flow at their locations, thereby changing the potential vibratory characteristics of the vocal system. They are now more often iatrogenic from endolaryngeal surgical procedures, complications of intubation, chronic inflammation or due to penetrating and blunt trauma to the larynx. A wide range of treatment procedures are now available but the solution to acquiring a "normal" voice has remained elusive due to reflectory stenosis and scar formation. We present our recent experiences with glottic web in nine cases using KTP-532 laser vaporization and endolaryngeal silastic keel insertion technique. Postoperative speech assessment in our cases showed significant improvement in voice quality of 7 of 9 cases studied(77.8%), and no specific problems were not seen.

• Medical Lasers
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• 제9권1호
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• pp.79-83
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• 2020

This paper reports a case of type 1 posterior glottic stenosis in a 60-year-old woman that was misdiagnosed as bronchial asthma. The patient was intubated at another hospital after ingesting herbicide and extubated seven days later. Although her voice changed, she had not received treatment at that time. She visited a local internal medicine clinic when her condition deteriorated to the point of dyspnea, but several months of treatment for bronchial asthma failed to improve her symptoms. Upon admission to the author's hospital, a laryngoscopic examination revealed a type 1 posterior glottic stenosis, which was removed surgically using a CO₂ laser.

• 대한두경부종양학회지
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• 제12권2호
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• pp.201-205
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• 1996

이상의 성적에서 레이저 성대 절제술은 초기 성문암종에 대한 일차 치료법으로 유용하다고 생각되었으며, 일차 절제가 가장 중요하고 그후 성대를 포함한 전체 후두점막에 대하여 주기적으로 현수후두경하에 수술현미경을 이용한 추적관찰과 원격전이 및 이차암의 발생 유무에 대하여 적극적인 추적검사가 필요할 것으로 사료된다.

• 대한두경부종양학회지
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• 제19권1호
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• pp.16-20
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• 2003

Objectives: Radiotherapy is an effective treatment in the initial management of T1 glottic carcinoma, but local recurrent or residual tumor growth is found in approximately 10% of the patients. Even in recurrence or residual tumor, in highly selected cases, conservation surgery with preservation of a portion of the larynx is feasible. So we investigated the efficacy of salvage vertical partial laryngectomy for recurrent glottic carcinoma after irradiation. Material and Methods: Retrospectively we reviewed a consecutive series of 10 patients treated by conservative vertical partial laryngectomy of the larynx for radiation-failure, recurrent T1 glottic squamous cell carcinoma treated at Severance Hospital from 1994 to 2002. Results: Local recurrence developed in 4 patients (40%). Two patient was salvaged by further totallaryngectomy. Successful salvage was achieved finally in 8 (80%) of the 10 patients. There was no operative mortality. Postoperative perichondritis was developed in two patients. One was resolved by conservative treatment, but the other has underwent the total laryngectomy. Conclusion: A vertical partial laryngectomy in case of recurrent glottic carcinoma after a course of irridation should be the therapy of choice when stringent criteria are observed.

• 대한후두음성언어의학회지
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• 제11권1호
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• pp.20-27
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• 2000

To determine what is the change of pre and postoperative voice and image analysis parameters and correlations between them, videostroboscopy was analyzed in each 18 patients with unilateral vocal cord paralyses or vocal polyps before and after the surgery from November, 1996 to April, 1999. The correlation between acoustic and aerodynamic parameters was investigated. The software-Videolink and $\pi$-View(Mediface Co, Seoul, Korea)-was used in a quantitative analysis. In unilateral vocal cord paralysis, the glottic angle is well correlated with maximum phonation time, jitter and shimmer preoperatively. The postoperative glottic angle is also correlated with preoperative maximum phonation time. In patients with the vocal polyp, the chink is postoperatively decreased, but the size of the chink and the polyp is not correlated with pre and postoperative voice analysis parameters. These findings reveal that glottic an and vocal fold angle are good indicators of e postoperative glottic configuration in unilateral vocal cord paralysis. Vocal fold ratio is also a useful indicator that represents the length of vocal folds. We consider that the computerized analysis through videostroboscopy is one of objective diagnostic methods in many voice disorders if we can measure a distance between the telelaryngoscope and vocal folds.