• Archives of Craniofacial Surgery
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• v.18 no.4
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• pp.223-229
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• 2017

The beauty of the laryngeal mask is that it forms an air tight seal enclosing the larynx rather than plugging the pharynx, and avoid airway obstruction in the oropharynx. The goal of its development was to create an intermediate form of airway management face mask and endotracheal tube. Indication for its use includes any procedure that would normally involve the use of a face mask. The laryngeal mask airway was designed as a new concept in airway management and has been gaining a firm position in anesthetic practice. Despite wide spread use the definitive role of the laryngeal mask airway is yet to be established. In some situations, such as after failed tracheal intubation or in oral surgery its use is controversial. There are several unresolved issues, for example the effect of the laryngeal mask on regurgitation and whether or not cricoids pressure prevents placement of mask. We review the techniques of insertion, details of misplacement, and complications associated with use of the laryngeal mask. We then attempt to clarify the role of laryngeal mask in air way management during anesthesia, discussing the advantages and disadvantages as well as indications and contraindications of its use in oral and maxillofacial surgery.

• Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
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• v.32 no.3
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• pp.124-129
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• 2021

Background and Objectives This study compares Vocal Fatigue Index (VFI) scores according to the presence or absence of external laryngeal tension in hyperfunctional voice disorder. And through this, it is to confirm the usefulness of VFI to hypertension of extrinsic laryngeal muscles. Materials and Method The subjects were 61 female diagnosed with hyperfunctional voice disorder (hypertension group 41, non-hypertension group 20). The author palpated extrinsic laryngeal muscles for evaluation of hypertension and classified them as the presence or absence. The voice measurements were jitter, shimmer, Korean-Voice Handicap Index-10 (K-VHI-10), and Korean-Vocal Fatigue Index (K-VFI). The voice compared were according to the diagnosis and presence of hypertension only for patients with hyperfunctional voice disorder. Results As a result of comparing the voice measurement according to the presence or absence of hypertension, there was no significant difference in the acoustic variables, K-VHI-10 and K-VFI-Total, K-VFI-Fatigue. Whereas, K-VFI-Physical (p=0.006) and K-VFI-Rest (p=0.022) were significantly higher in the hypertension group. Conclusion These results indicate that the hypertension group has more physical discomfort and less voice recovery than the group without hypertension. It means that K-VFI can measure the physical discomfort and limitations of voice recovery due to hypertension of the external laryngeal muscle. The VFI can be used as one of the methods to evaluate the hypertension of the external laryngeal muscle in Hyperfunctional voice disorder.

• Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
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• v.24 no.2
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• pp.102-106
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• 2013

The cure rates for early stage laryngeal cancer are similar between laser cordectomy and radiation therapy. As well as the survival outcome, one of the main measures of success in treatment of early laryngeal cancer is voice outcome. Many studies have demonstrated that laser cordectomy and radiation therapy to be equivalent with regard to vocal outcome, whereas others favor radiation. Although such as somewhat disadvantages of voice outcome, laser cordectomy still remains a valid option. Since the patients who treated with laser may benefit from additional phonosurgery to improve postoperative vocal outcome. In this article, we reviewed the techniques of phonosurgery which can be used for laryngeal reconstruction after laser cordectomy. The indications for using each technique are discussed, with particular attention paid to functional outcomes following these reconstructive efforts.

• Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
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• v.22 no.2
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• pp.156-158
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• 2011

Organophosphates are used as herbicides. Glyphosate is one of the acidic organophosphate solution of pH4.8-6. We experienced a case of laryngeal injury after glyphosate caustic ingestion. He had a mild respiratory distress, and a laryngeal granuloma was observed in endoscopy. He received treatment with oral steroid and PPI for two weeks, the laryngeal granuloma and respiratory distress were nearly disappeared. Therefore, we expect this case report to be helpful the therapeutic formulations in the damage of larynx due to glyphosate.

• Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
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• v.8 no.2
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• pp.239-244
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• 1997

Among the patients presented with the chief complaint of voice change, the one with unilaterally injected vocal fold was occasionally found at the out patient clinic. The most patients had rarely improved in symptom with conservative treatment under the impression of chronic laryngitis. Some papers were reported that the injected vocal fold(s) is due to laryngeal tuberculosis hick is sometimes associated with pulmonary tuberculosis. We investigated six patients presented unilaterally injected vocal fold with videolaryngoscope and performed histopathologic confirm with laryngeal biopsy respectively. There were low cases of laryngeal tuberculosis, one case of squamous cell carcinoma and one case of chronic larngitis. Proper management was done according to the tissue diagnosis. Pretretment and posttreatment videolaryngoscopic findings as well as some literature review were done.

• Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
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• v.7 no.1
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• pp.5-10
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• 1996

From October 1991 to June 1995, 4 medialization thyroplasties and I arytenoid adduction were simultaneously performed with the thyroid surgery when the unilateral recurrent laryngeal nerve was paralyzed before or during thyroidectomy. Four cases were papillary carcinoma with direct invasion to the unilateral recurrent laryngeal nerve, and one case was huge adenomatous goiter and the recurrent laryngeal nerve was incidentaly cut. Hoarseness was present preoperatively with mean duration of 15 months and aspiration was also present in three cases. After phonosurgery, voice was improved in 4 out of 5 cases and aspiration subsided in 2 out of 3 cases. In one case, hoarseness continued after total thyroidectomy and thyroplasty type I and the arytenoid adduction with planned due to posterior glottic gap of 2mm. We suggest that the thyroplasty type I or arytenoid adduction are primary phonosurgical procedures which ran be performed concomitantly with neck surgeries in the patients with paralysis of the unilateral recurrent laryngeal or vagus nerve damage during neck surgeries.

• Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
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• v.22 no.1
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• pp.30-33
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• 2011

Laser is a relatively recent addition to laryngeal surgery. Since their invention, laser use and applications have expanded rapidly. The use of lasers in surgery has offered a time- and cost-efficient alternative to cold surgical techniques and has been used in the treatment of numerous laryngeal pathologies, including stenoses, recurrent respiratory papillomatosis, leukoplakia, nodules, malignant laryngeal disease, and polypoid degeneration (Reinke's edema). Despite the notable benefits, laser surgery is not without disadvantages. Laser heat can increase scarring and cause damage to adjacent tissue. With laser laryngeal microsurgery, there is potential for airway fire, endolaryngeal bleeding, perichondritis, chondritis, granuloma, surgical emphysema, laryngeal stenosis and web formation, postoperative edema and swallowing problem. Surgeons should be known about these complications and could manage properly.

• Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
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• v.22 no.1
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• pp.60-62
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• 2011

Primary laryngeal aspergillosis is rare, It is most often found in immunocompromised patient, such as leukemia, malignant disease, diabetes or immunosuppressive drugs. These days the occurrences of laryngeal aspergillosis in immunocompetent patients are increasing. The cause of laryngeal aspergillosis in immunocompetent patients is not clear, but a few factors are considered such as iatrogenic factors, vocal abuse, vocal fold cyst and occupational factors. The histopathologic characteristics are somewhat different between that of immunocompromised patients and immunocompetent patients. We report a case of primary vocal cord aspergillosis in immunocompetent patient who had treated with only surgery and brief review of the pertinent literature.

• Journal of Veterinary Clinics
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• v.22 no.3
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• pp.214-219
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• 2005

This experiment was conducted in order to identify the effect of the laryngeal mask airway and it's clinical utility on cardiovascular system, intraocular pressure and stress reaction at the time of anesthesia care. The heart rate, systolic arterial pressure, diastolic arterial pressure and intraocular pressure were significantly reduced in the experimental group to be compared with the control group. But, there were no significant differences in mean arterial pressure, central venous pressure and blood cortisol concentration between both groups. In view of the above results, it is thought that the airway management using the laryngeal mask airway will be useful to reduce the stress condition in the induction of anesthesia.

• Journal of Veterinary Clinics
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• v.14 no.2
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• pp.185-194
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• 1997

This study was conducted to assess the application of spectrograms in the diagnosis of laryngeal paralysis and the arytenoidopexy with bilateral vocal cord excision (laryngofissure) for the relief of laryngeal paralysis. Laryngeal paralysis represented two types of stridor A and B (AN, PN). There were significant differences in Dominant Frequency ( DF, p<0.01), which were $3590{\pm} 209.81 Hz, 7445\{pm}418.54 Hz$, respectively. After arytenoidopexy with bilateral vocal cord excision (laryngofissure), $PaO_{2} levels (100.57{\pm}7.59 mmHg) were more increased than that (86.5 {\pm} 3.34 mmHg)$ of pre-operative dogs.