• Journal of Yeungnam Medical Science
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• 제34권1호
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• pp.29-36
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• 2017

Background: Saccade test, smooth pursuit test, and optokinetic nystagmus test are clinically useful tests to accurately diagnose vertigo. However, there have only been a few studies regarding a correlation between the anatomical site of the lesion and the abnormality of eyeball movement in patients with vertigo. Methods: The medical records of 97 patients with vertigo between January 2006 and June 2008 were reviewed retrospectively. We classified many kinds of abnormalities regarding the saccade test, smooth pursuit test and optokinetic nystagmus test into several categories and analyzed the localizing lesion of vertigo. Results: According to the saccade test, both total saccade abnormality (S-total) and slow velocity of saccade (S-type 3) were shown to be significantly higher in the central lesion of vertigo. According to the smooth pursuit test, symmetrical unidirectional smooth pursuit abnormality (SP-type 2) was observed to be significantly higher in the peripheral lesion over vertigo. Moreover, according to the optokinetic nystagmus test, total optokinetic nystagmus abnormalities (OKN-total) were shown to be significantly useful findings in the diagnosis of the central lesion of vertigo. The coexisting abnormalities of all three tests (S+SP+OKN abnormalities) were shown to be significantly higher in the central lesion of vertigo. Conclusion: These results suggest that all these tests, saccade test, smooth pursuit test, and optokinetic nystagmus test, are very useful to distinguish between the central lesion and the peripheral lesion of vertigo. However, these tests are not beneficial in localizing the central lesion of vertigo.

• Clinical and Experimental Reproductive Medicine
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• 제32권2호
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• pp.113-119
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• 2005

Objective: The purposes of this study were to investigate the types and the incidences of chromosomal abnormalities, and to provide an explanation for the genetic causations of recurrent spontaneous abortions in Korean population. Methods: Cytogenetic studies were carried out in 535 couples with at least two spontaneous first trimester abortions from January 1981 to December 2003. For karyotype analysis, we used modified Moorhead method by Giemsa staining and Giemsa-Trypsin-Giemsa banding Results: The overall incidence of chromosome abnormality was 32 out of 535 cases (5.98%). There were 25 cases (4.67%) of translocation and 7 cases (1.31%) of inversion. In translocation, 5 cases (0.93%) of Robertsonian translocation and 20 cases (3.74%) of reciprocal translocation were observed. In inversion, 6 cases (1.12%) of inversion of chromosome 9 and one case (0.19%) of inversion of chromosome 18 were found. Conclusion: In this study, overall chromosomal abnormality rate in couples with recurrent spontaneous abortions is much higher than that in the general population. So, chromosomal analysis should be offered for the prognostic information in genetic counseling such as prenatal diagnosis in couples with repetitive reproductive failure.

• 조명전기설비학회논문지
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• 제16권5호
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• pp.29-37
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• 2002

본 논문에서는 전자파 측정기법을 이용하여 부분방전 발생 전·후에 검출된 신호를 분석하여 폐쇄 배전반의 이상 징후를 상시 감시할 수 있는 사고 예방진단기법을 제시하였다. 폐쇄 배전반의 정상 및 이상상태 판단을 위해 배전반 내부 및 외부에 헬리컬 안테나를 설치하여 이들 안테나에서 검출된 부분방전 발생 전·후의 신호를 주파수 스펙트럼 분석을 통해 크기를 비교 분석하였다. 본 논문에서는 부분방전 발생 전·후에 폐쇄 배전반 내부 및 외부에 설치된 안테나에서 검출된 신호들을 이용하여 정상상태 및 이상상태를 판별하는 방법을 적용하여 좋은 결과를 얻었으며, 향후 폐쇄 배전반의 절연 상태 감시 및 사고예방에 효율적으로 적용할 수 있으리라 기대된다.

• 한국임상수의학회지
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• 제35권1호
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• pp.30-33
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• 2018

A 7-month-old female Bichon Frise, displaying neck pain and ataxia, was diagnosed with craniocervical junction abonormality (CJA), along with atlantoaxial subluxation. Surgical fixation of the atlantoaxial subluxation was performed, using cortical screws and bone cement, along with an odontoidectomy. After surgery, nonsteroidal anti-inflammatory medication was prescribed for pain control, and a loose bandage was applied to the neck. Mild ambulatory tetraparesis remained 1 week after surgery. Three weeks after surgery, the range of neck motion was near normal, and clinical signs had improved. CJA should be considered as a differential diagnosis in dogs with cervical myelopathy. Surgical stabilization using cortical screws and bone cement through a ventral approach can be successful in dogs with CJA and atlantoaxial subluxation.

• Archives of Plastic Surgery
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• 제50권4호
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• pp.393-397
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• 2023

Constricted ear has a prevalence of 5.2 to 10% among ear abnormalities, and various surgical methods are suggested for treatment. We introduce a case of a constricted ear treated with a simple method using a novel concept cartilage graft and transposition flap, along with the well-known Mustardé suture, which is used for pediatric patients with mild to moderate constricted ears of Tanzer classification type IIA. A 10-year-old female patient visited the hospital complaining of an abnormality in the congenital right ear. Surgical approach was planned under the diagnosis of Tanzer classification type IIA constricted right ear. Posterior helix onlay graft and perichondrocutaneous transposition flap using excessive helical cartilage were performed along with the Mustardé suture. In the immediate postoperative period, ear contour was improved, and it was well-maintained without recurrence until 6 months' follow-up. In conclusion, the combination of Mustardé suture, and cartilage onlay graft and perichondrocutaneous transposition flap in the mild to moderate constricted ear would be a useful surgical option, producing aesthetically good results in a simple and effective method.

• 한국콘텐츠학회논문지
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• 제11권11호
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• pp.185-193
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• 2011

결핵은 환자를 미리 발견하여 치료함으로서, 질병의 전파를 차단하여 새로운 감염자가 발생을 최소화하고, 결핵을 조기에 예방 및 진단하는 것이 중요하다. 그러므로 현재 의학에서는 디지털 의료영상을 활용하여 질병진단의 보조 수단으로서 컴퓨터자동진단시스템이 응용되고 있다. 본 연구에서 주성분 분석(PCA)과 질감분석(Texture features)의 알고리즘을 이용하여 결핵의 질병을 자동으로 판별 및 인식하였으며, 그 기준에 따라 디지털 흉부 방사선영상에서 컴퓨터자동진단의 실용화를 위한 선행연구를 하였다. 실험결과는 주성분분석을 이용한 병변 인식률은 전문의의 질병에 대한 판독률보다 낮게 나타났지만, 질감분석의 인식률은 전문의 판독결과보다 높은 병변 인식률을 나타내었다. 그러므로 제안하는 알고리즘을 활용한 컴퓨터자동진단시스템은 임상의사에게 부가적인 보조 수단으로서 예비판독 단계의 정보를 제공하여 질병의 조기진단 및 예방이 가능할 것으로 사료된다.

• 대한족부족관절학회지
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• 제18권2호
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• pp.43-47
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• 2014

Hallux valgus is a lateral deviation of the first phalanx and medial deviation of the first metatarsal at the first metatarsophalangeal (MP) joint. Its incidence has increased due to developing footwear. The etiologies include fashion footwear, genetic causes, anatomical abnormality around the foot, rheumatoid arthritis, and neuromuscular disorders. Physiologic alignment of the first MP joint is maintained by congruent and symmetric alignment of the articular surface of the first proximal phalanx and first metatarsal head, physiologic relationship of the distal first metatarsal articular surface and the first metatarsal shaft axis, and stable balance of soft tissue around the first MP joint and stable tarsometatarsal joint. Several factors have been associated with hallux valgus, including pes planus, hypermobility of the first tarsometatarsal joint, flattened shape of the first metatarsal head, increased distal metatarsal articular angle, and deformation of the medial capsular integrity. History and physical examination are very important to diagnosis of hallux valgus. Simple radiography provides information on deformity, particularly in weight-bearing anteroposterior and lateral radiographs. Understanding the etiologies and pathophysiology is very important for success in treatment of patients with hallux valgus.

• Clinical and Experimental Pediatrics
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• 제49권12호
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• pp.1363-1366
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• 2006

신생아에서 흉강내 대동맥류는 드물며, 말판 증후군, 대동맥 축착, 대동맥 판막 협착, 동맥염, 터너 증후군, 결절성 경화증 등과 연관되어 보고된 바 있다. 신생아에서 발견되는 ductus arteriosus aneurysm은 매우 드문 질환이나, 대동맥 파열이 유발 될 수 있는 기형이다. 병인으로 대동맥 쪽에 있는 동맥관의 폐쇄 지연, 선천적으로 동맥관 벽이 약한 경우, 자궁내에서 동맥관으로 혈류 증가, 자궁내에서 동맥관의 협착 등이 있으나 명확하지 않은 상태이다. Ductus arteriosus aneurysm은 흉부 방사선, 심초음파, 3차원 전산화단층촬영, 자기 공명영상 검사 등으로 진단할 수 있다. 치료는 인도메사신의 투여, 수술적 절재 등의 방법이 있으며, 자연 소실되는 경우도 있다. 저자들은 태변흡인증후군 환아에서 우연히 발견된 ductus arteriosus aneurysm이 생후 4주 뒤 자연 소실되는 1례를 경험하였기에 보고하는 바이다.

• Journal of Chest Surgery
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• 제8권1호
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• pp.13-18
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• 1975

Developmental pulmonary abnormalities are known as rare condition. diagnosis was made at autopsy in the early cases reported, however, as diagnostic aids such as X-ray, bronchography, bronchoscopy and exploratory thoracotomy have come into use, the condition is being discovered more often recently in living persons, and it appears to occur with sufficient frequency to merit consideration in the differential diagnosis of certain chest conditions. According to Schneider and Boyden there are three main types of this abnormality: [1] Agenesis, in which there is complete absence of one or both lungs; there is no trace of bronchial or vascular supply or of parenchymal tissue. [2] Aplasia, in which there is suppression of all but a rudimentary bronchus which ends in a blind pouch; there are no vessels or parenchyma. [3] Hypoplasia, in which the bronchus is fully formed but is reduced in size and ends in a _ flesh structure which usually lies within the mediastinum. Rudimentary pulmonary parenchyma may be present around the bronchial stump and often is the site of cystic malformation. We experienced one case of hypoplastic lung with cystic malformation which was originated from a small aberrant rudimentary bronchus, and the rudimentary bronchus was branched from the right side of tracheal end. The diagnosis was finally confirmed by the histopathological finding. Now, we report this case with a brief review of literatures.

• Clinical and Experimental Reproductive Medicine
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• 제27권3호
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• pp.307-311
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• 2000

Objective: To report the successful delivery in a patient of recurrent spontaneous abortion caused by chromosomal abnormality. Material and Method: Case report. Results: Twelve oocytes were obtained by in vitro fertilization. Of eleven oocytes fertilized, two embryos turned out to be normal by using fluorescent in situ hybridization on blastomere biopsy. The patient succeeded in pregnancy and the result of amniocentesis was found to be normal. She delivered the healthy female baby by cesarean section. Conclusions: The successful delivery is possible in recurrent spontaneous abortion related with reciprocal translocation by using preimplantation genetic diagnosis.