• Proceedings of the KSLP Conference
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• 1998.11a
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• pp.185-185
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• 1998

배경 : 양성성대질환에 대한 기저막영역과 성대고유층에 대한 연구를 통해서 양성성대질환의 조직병리학적 특성이 밝혀지고 있으며, 질환발생과 관련된 병인과 병태가 밝혀지고 있다. 목적 : 양성성대질환의 병리학적 특성에 맞게 후두미세수술시 성대 고유층 최상층을 최대한 보호하고 병변부위만을 제거할 수 있는 성대점막하주입술의 유용성을 알아보고자 하였다. (중략)

• Proceedings of the KOR-BRONCHOESO Conference
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• 1993.05a
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• pp.75-75
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• 1993

A retrospective review of 158 patients who had microlaryngeal surgery for benign vocal cord disease, at the Department of Otolaryngology, Kang-Nam St. Mary Hospital, over 2-year period from Mar. 1991 to Feb. 1993, was completed. Of 158 patients, 16 patients(10.1%, male 8 & female 8, most common in fifth decade) had concomitant vocal sulcus unilaterally (10) or bilaterally (6). Vocal sulcus was accompanied with 7.5% (7/93) of vocal polyp, 15.8% (6/38) of vocal nodule, 11.1% (1/9) of Reinke's edema and 8.3% (1/12) of vocal cyst. Vocal sulcus located above the associated disease in 13(59.1%), below the disease in 7(31.8%) and in the lesion in 2(9.0%). Vocal sulcus was found mainly on the midportion of the membranous vocal cord and the length was less than half of membranous vocal cord in 16(72.7%), more than half in 6(27.3%). In 12 cases (54.5%), vocal sulcus was deep enough to attach to the vocal ligament. We thought it is important to consider the concomitant vocal sulcus during the microlaryngeal surgery for benign vocal cord disease.

• Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
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• v.26 no.2
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• pp.101-103
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• 2015

There are no standard consensus about treatment results and prognostic factors based on randomized trials for benign vocal fold lesion. Currently, voice therapy is the treatment of choice for vocal nodules, and laryngomicroscopic surgery is for vocal polyps. There are no strong evidences to support it, based on randomized controlled trials, But, it's just a consensus among laryngologist. Considering the pathophysiology of benign vocal cord lesions, cognitive behavioral therapy that corrects the patient's bad voice habits and improves their vocal hygiene could be most important factor for treatment outcomes.

• Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
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• v.26 no.2
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• pp.94-96
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• 2015

Several distinct pathologic entities are encompassed in benign vocal fold lesions, including intracordal cysts, vascular ectasia, as well as vocal fold nodules and vocal fold polyps. Treatment options for theses lesions include both medical/conservative and surgical techniques. First approaches should be focus on correcting the underlying causative factors, largely through voice therapy and education. There are several laryngomicrosurgery techniques for removal of benign lesions. Much debate continues regarding the relative merits of cold instruments versus carbon dioxide laser removal of benign vocal fold lesions. Both techniques have the merits and the demerits each other. Therefore the surgeon should well comprehend the merits of each techniques and choose the proper procedure for patient's lesions.

• Proceedings of the KOR-BRONCHOESO Conference
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• 1993.05a
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• pp.89-89
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• 1993

The laryngeal epithelial cell kinetics of 26 laryngeal lesions(invasive squamous cell carcinoma 14, epithelial hyperplasia 5, laryngeal nodule 7) were studied by immunehistochemical analysis with the monoclonal antibody Ki-67, which reacts with nuclear antigen in proliferating cells using paraffin embedded tissue. For DNA analysis, touch implint with fresh biopsy specimens were stained with feulgen and analyzed by image analyzer in 22 cases. 1) The proportion of Ki-67-positive cells were 32.65$\pm$ 11.59% in invasive squamous cell ca, 20.14$\pm$3.38% in epithelial hyperplasia lesion and 11.66$\pm$3.02% in laryngeal nodule. 2) DNA aneuploidy was found in 7 cases of 10(70%) invasive squamous cell carcinomas, 2 cases of 5(40%) epithelial hyperplasia lesions and all cases of laryngeal 3) Proliferation index(S phase+G2/M phase) show 23.42$\pm$11.33% in squamous cell carcinoma, 13.09$\pm$ 10.90% in epithelial hyperplasia lesion and 4.50$\pm$1.19% in laryngeal nodule. As the results, measuring the DNA content from touch imprint method together positivity of Ki-67 antibody from the microtissue during the laryngeal microscopic surgery, cell kinetics can be assessed as an effort of deciding the prognosis and provide a key to the management of precancerous lesions.

• Proceedings of the KSLP Conference
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• 2016.03a
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• pp.31-31
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• 2016

• Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
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• v.29 no.2
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• pp.76-78
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• 2018

With recent developments in medical technology and the introduction of various types of lasers, the role of fiberoptic laryngeal laser surgery (FLS) in laryngology has been significantly expanded. FLS are typically performed under local anesthesia, and patients may return to normal activities immediately after the procedure. This corresponds to the current trend of minimally invasive surgery and may limit unnecessary general anesthesia, reduce medical costs, and increase patient compliances. Main indications of FLS procedure were vocal polyp, recurrent respiratory papillomatosis, vocal fold granuloma and vocal fold dysplasia. In this review, we discuss practical tips and unique value of FLS.

• Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
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• v.26 no.2
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• pp.97-100
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• 2015

Benign vocal fold lesions, such as vocal nodules, polyps and Reinke's edema, usually result from chronic voice overuse. Conservative management such as voice therapy and pharmacotherapy are used as the primary treatment techniques. The main purpose of voice therapy is to identify and reduce voice misuse to achieve the optimal voice. But complete resolution may not be possible in all patients after voice therapy. Furthermore, some patients with voice-related occupations, voice rest and voice therapy are sometimes difficult, which makes it hard to carry out the treatment. When conservative therapy is ineffective, laryngeal microsurgery can be performed under general anesthesia. However, potential complications following laryngeal suspension and violation of the layered structure of the vocal fold during surgery should be considered before surgery. In recent decades, emerging literatures have demonstrated the potential usefulness of vocal fold steroid injection as an alternative treatment option for benign vocal fold lesions. The most advantageous feature of vocal fold steroid injection is the maintenance of regional anti-inflammatory effects while preventing the potential systemic adverse effects of the steroid. Many non-surgical treatment methods can be conducted using different approaches in the office setting. It can be applied as an alternative treatment modality for the management of various benign vocal fold lesions.

• Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
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• v.29 no.1
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• pp.37-40
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• 2018

Background and Objectives : This study aimed to evaluate patients' subjective and objective outcomes after laryngeal microsurgery for benign vocal fold (VF) lesions, and to identify usefulness of surgical treatment. Materials and Methods : The authors reviewed the 102 patients medical records, retrospectively who received laryngeal microsurgery for benign VF lesions from January 2013 to August 2017. Subjective voice were measured using the Voice Handicap Index (VHI). Objective voice were recorded with Multi-Dimensional Voice Program (MDVP) just before surgery, and after at least 3 months of surgery. Results : Benign VF lesions were categorized as VF nodule (n=34, 33%), VF Polyp (n=47, 26%), Intracordal cyst (n=15, 15%), Reinke's edema (n=6, 6%), and VF Papilloma (n=2, 2%). Post-operative voice assessment at VHI scores showed statistically significant reductions in all of functional, physical and emotional parts (p<0.001). MDVP were showed significant improvement of Jitter (P=0.001), Shimmer (p<0.001) and Noise to Harmonic Ratio (NHR) (p=0.001). Conclusion : Laryngeal microsurgery for benign vocal fold lesions is effective treatment with statistically significant improvement at subjective and objective vocal quality assessment.

• Proceedings of the KSLP Conference
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• 2017.04a
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• pp.6-9
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• 2017