1.A Rare Case of Bleeding Ectopic Lingual Thyroid Presenting as Hematemesis.
Min Kwan BAEK ; Eun Young KIM ; Soong Gong LEE ; Sang Min LEE ; Young Sil EOM
Yonsei Medical Journal 2015;56(4):1163-1164
No abstract available.
2.Impact of COVID-19 on the clinical course of nephrotic syndrome in children: a single-center study
Min Ji PARK ; Jung Kwan EUN ; Hee Sun BAEK ; Min Hyun CHO
Childhood Kidney Diseases 2022;26(2):74-79
Purpose:
Children with nephrotic syndrome may experience disease relapse or aggravation triggered by various viral infections. Limited studies on the clinical implications of the coronavirus disease 2019 (COVID-19) pandemic in children with nephrotic syndrome have been published worldwide. Therefore, this study aimed to investigate the effects of COVID-19 on the clinical course of nephrotic syndrome in children.
Methods:
The medical records of 59 patients with idiopathic nephrotic syndrome who visited our hospital between February and June 2022 were retrospectively analyzed.
Results:
Twenty of the total 59 patients with nephrotic syndrome were diagnosed with COVID-19 during the study period. The mean age at the time of the diagnosis of nephrotic syndrome and COVID-19 in all 20 patients was 4.6±3.5 and 8.9±3.9 years, respectively. Three patients (15%) were diagnosed with nephrotic syndrome relapse during COVID-19 and the relapse rate was similar to them without COVID-19 (20.5%, 8/39 patients). At the time of the COVID-19 diagnosis, fever (85%) and cough (40%) were the most common symptoms. After the diagnosis of COVID-19, all patients showed improvement with symptomatic treatment, including antipyretic analgesics and cold medicine. None of the critical patients required hospitalization or oral antiviral medications.
Conclusions
Despite the use of immunosuppressants, the clinical manifestations of COVID-19 in children with nephrotic syndrome were not severe and are expected to be similar to that in the general population. The relapse rate of nephrotic syndrome in children with COVID-19 was also not different from them without COVID-19.
3.Hearing Outcomes and Prognostic Factors in Idiopathic Sudden Sensorineural Hearing Loss Patients with Combined Intratympanic and Systemic Steroid Therapy.
Min Kwan BAEK ; Chang Hyun CHO ; Yu Jin BANG ; Na Rae OH ; Min Ja BAEK ; Ju Hyoung LEE
Korean Journal of Otolaryngology - Head and Neck Surgery 2018;61(5):242-246
BACKGROUND AND OBJECTIVES: Hearing outcomes and prognostic factors of idiopathic sudden sensorineural hearing loss (SSNHL) were investigated in patients who underwent combined intratympanic and systemic steroid therapy. SUBJECTS AND METHOD: This study was performed by retrospective chart review. Clinical outcomes and prognostic factors were evaluated in 147 patients who received intratympanic steroid plus systemic steroid therapy. RESULTS: Complete hearing recovery was achieved in 36.7% (n=54) of the patients, partial recovery in 12.9% (n=19), slight recovery in 12.3% (n=18), and total recovery in 61.9% (n=91). Age was identified as an independent, negative prognostic factor for hearing recovery. The recovery rates of the down sloping and profound types were poorer than those of the up sloping type as determined by audiography. CONCLUSION: The results of this study suggest that the combined treatment of intratympanic and systemic steroids for idiopathic SSNHL results in high hearing recovery rates, and that the down-sloping and profound types of audiogram patterns and age are negative prognostic factors.
Ear, Middle
;
Hearing Loss
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Hearing Loss, Sensorineural*
;
Hearing*
;
Humans
;
Methods
;
Prognosis
;
Retrospective Studies
;
Steroids
4.Effect of Refractive Error on the Multifocal Electroretinogram.
Soon Chul BAEK ; Tae Kwan PARK ; Seung Min KANG ; Young Hoon OHN
Journal of the Korean Ophthalmological Society 2004;45(4):557-563
PURPOSE: To evaluate the influence of refractive blur on the results of mfERG. METHODS: mfERG was performed on 10 healthy volunteers with a refractive error within +/- 1 diopter. The central 30 degrees of the ocular fundus were stimulated by an array of 103 hexagonal elements, for four minutes, using VERISTM. To change the refractive status, 6-cm diameter corrective lens, of -6, -4, -2, plano, +2, +4, and +6 diopters, were placed in front of the eyes, and the examination distance adjusted to compensate retinal image size changes due to corrective lens. The mfERG responses were grouped by 6 concentric rings, and then averaged. For each ring, the latencies and amplitudes of the N1, P1 and N2 were analyzed. The 6 rings were divided into the central (ring 1, 2) and peripheral (ring 3~6) retina, and the latencies and amplitudes of the N1, P1 and N2 were then also analyzed. RESULTS: Refractive blur can affect the results of the mfERG. Latency delay was more common at the peripheral than central retina, but had no statistically significant correlations with the refractive power increase. CONCLUSIONS: When the viewing distance was adjusted to create a constant retinal image size, the influence of refractive blur may cause some changes in the mfERG results. Therefore, when evaluating the results of an mfERG, the effects of the refractive error should be borne in mind.
Healthy Volunteers
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Refractive Errors*
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Retina
;
Retinaldehyde
5.Delayed Treatment of Zygomatic Tetrapod Fracture.
Min Kwan BAEK ; Joo Hyun JUNG ; Seon Tae KIM ; Il Gyu KANG
Clinical and Experimental Otorhinolaryngology 2010;3(2):107-109
Since maxillofacial injury is frequently accompanied by other diseases, its evaluation and treatment are open delayed. When the evaluation is delayed, the surgical treatment can be difficult or impossible. A 21-yr-old man presented with right facial swelling and deformity after injury. We planned immediate surgical repair for his right tetrapod fracture, but the operation was delayed for two months due to severe hyperthyroidism. During the operation, we reducted and fixed the deviated bone after refracture of the zygomatic arch with an osteotome to achieve mobility. The facial deformity and difficulty in mouth opening were improved after the operation. Even in the presence of accompanying fractures, early evaluation and proper management can prevent complications and achieve acceptable cosmetic outcomes in maxillofacial trauma patients. In patients with malunion of fracture sites, fixation after refracture using an osteotome can be a good treatment option for obtaining good mobility.
Congenital Abnormalities
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Cosmetics
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Facial Injuries
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Fracture Fixation
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Humans
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Hyperthyroidism
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Maxillofacial Injuries
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Mouth
;
Zygoma
6.Surgical Strategies for Prevention and Treatment of Airway Aspiration in Head and Neck Cancer Patients
Min Kwan BAEK ; Dong Young KIM
Journal of the Korean Society of Laryngology Phoniatrics and Logopedics 2018;29(1):9-13
Postoperative airway aspiration is not uncommon in patients with head and neck cancer. Airway aspiration has serious consequences, such as swallowing disorders, nutrition-related health problem, or reducing the quality of life due to maintenance of tracheal or nasogastric tubes. The postoperative oropharyngeal defect due to the surgery may interfere with normal swallowing reflex, or the laryngeal dysfunction caused by radiation therapy may cause severe airway aspiration, which may lead to complications such as dyspnea and pneumonia. Complete removal of the disease is also important in the treatment of head and neck cancer, but it is necessary to select a method to avoid and predict the occurrence of airway aspiration according to the treatment method. The most important factor to prevent airway aspiration after surgery is to preserve the proper volume of the oropharynx and to preserve at least one of the cricoarytenoid joint function. It is also the most effective way to reduce additional complications by seeking appropriate surgical treatment according to airway aspiration status. The purpose of this study is to review the operative methods that can induce airway aspiration and consider the prevention and treatment strategy through review of the literature.
Deglutition
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Deglutition Disorders
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Dyspnea
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Head and Neck Neoplasms
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Head
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Humans
;
Joints
;
Methods
;
Oropharynx
;
Pneumonia
;
Quality of Life
;
Reflex
7.A Case of Epithelial-Myoepithelial Carcinoma Originating from Minor Salivary Gland of Tongue Base.
Bo Gyoung KWACK ; Min Kwan BAEK ; Dong Young KIM ; Joo Hyun WOO
Korean Journal of Otolaryngology - Head and Neck Surgery 2014;57(4):255-258
Epithelial-myoepithelial carcinoma (EMC) is a rare, often low grade malignant neoplasm that occurs most commonly in the parotid gland. However, EMC originating from a minor salivary gland is extremely rare. A 38-year-old female patient was referred to our department for dysarthria and a huge mass at the base of tongue. Transoral resection of the mass was performed using a midline glossotomy approach. The pathological examination revealed epithelial-myoepithelial carcinoma of a minor salivary gland. Sequential adjuvant chemoradiotherapy was performed. After clinical follow-up of 26 months, she has remained free of disease. We report on this rare condition in order to share our experience.
Adult
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Chemoradiotherapy, Adjuvant
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Dysarthria
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Female
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Follow-Up Studies
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Humans
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Parotid Gland
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Salivary Glands, Minor*
;
Tongue*
8.Colon Interposition via the Retrosternal Approach without Enlargement of the Thoracic Inlet for the Management of Esophageal Stricture.
Min Kwan BAEK ; Joo Hyun WOO ; Seung Wook HAN ; Dong Young KIM
Korean Journal of Otolaryngology - Head and Neck Surgery 2014;57(11):769-773
BACKGROUND AND OBJECTIVES: To report our experience of colon interposition without thoracic inlet widening for the management of esophageal stricture. SUBJECTS AND METHOD: Between 2005 and 2012, five patients underwent esophageal replacement using colon graft. Clinical data, such as surgical techniques including thoracic inlet widening, surgical outcomes, and patient's age and gender were retrospectively analyzed. The follow-up period ranged from 10 months to 5 years. RESULTS: All five patients had corrosive esophageal stricture and underwent colon interposition without thoracic inlet widening; four underwent pharyngocologastrostomy and one total laryngopharyngectomy and pharyngocologastrostomy. No major complications, such as aspiration, dysphagia, reflux, or swallowing disorder developed during the postoperative long term follow-up. CONCLUSION: A colon graft without enlargement of the thoracic inlet is an excellent esophageal substitute for patients with an esophageal corrosive stricture. Further surgical experience and more long-term follow-up data are required to produce more precise and statistically meaningful results.
Bays*
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Colon*
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Constriction, Pathologic
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Deglutition Disorders
;
Esophageal Stenosis*
;
Follow-Up Studies
;
Humans
;
Retrospective Studies
;
Transplants
9.Cerebellar Venous Angioma Confused with Peripheral Vestibulopathy.
Min Kwan BAEK ; Heung Eog CHA ; Youn Hee JU ; Ju Hyoung LEE
Korean Journal of Otolaryngology - Head and Neck Surgery 2009;52(8):704-708
Venous angioma is a congenital disease of vascular malformation, which is a mass like lesion consisted of dilated medullary veins. It is generally a silent lesion since it is found in normal brain tissues and tends to have low blood flow and pressure. The venous angioma could be diagnosed with magnetic resonance imaging and angiography, but most of them are incidentally diagnosed, because it is usually asymptomatic. The patients with venous angioma have nonspecific symptoms, such as headache, nausea and vomiting, seizures, progressive neurological deficit and hemorrhage. In particular, the venous angioma in cerebellum could cause hearing disturbance, tinnitus and dizziness. We report a case of venous angioma in cerebellum that had been mistaken for peripheral vestibulopathy in a patient complaining of dizziness
Angiography
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Brain
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Central Nervous System Venous Angioma
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Cerebellum
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Dizziness
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Headache
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Hearing
;
Hemangioma
;
Hemorrhage
;
Humans
;
Magnetic Resonance Imaging
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Nausea
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Seizures
;
Tinnitus
;
Vascular Malformations
;
Veins
;
Vomiting
10.Microsurgical Anatomy of the Choroidal Fissure.
Hyun Jong HONG ; Jeong Taik KWAN ; Kwan PARK ; Won Bog LEE ; Young Baek KIM ; Byung Kook MIN ; Sung Nam HWANG ; Duck Young CHOI ; Jong Sik SUK
Journal of Korean Neurosurgical Society 1996;25(5):929-935
The authors had studied the microsurgical anatomy of the choroidal fissure and the operative approaches directed through the fissure. In this study, eight formalin-fixed cadaveric hemisheres were examined. In four hemispheres, the intracranial vessels were perfused with colored silicone latex. The choroidal fissure is divided into three portion : (a) body portion, (b) atrial portion, and (c) temporal portion. Dissection through the body portion of the choroidal fissure exposes the velum interpositum, internal cerebral vein, and third ventricle. The quadrigeminal cistern, pineal region, and posterior part of the ambient cistern can be exposed through the atrial portion of the choroidal fissure. Opening through the temporal portion of the choroidal fissure exposes the structures in the ambient cistern, which include the basal vein, posterior cerebral artery, anterior and lateral posterior choroidal arteries, and hippocampal formation. This study provides valuable knowledges of microsurgical approaches to the third ventricle and basal cistern by demonstrating the neural nd vascular relaionship around the choroidal fissure.
Arteries
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Cadaver
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Cerebral Veins
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Choroid*
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Hippocampus
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Latex
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Posterior Cerebral Artery
;
Silicones
;
Third Ventricle