• Journal of Veterinary Clinics
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• v.34 no.4
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• pp.268-271
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• 2017

A 1.3 year-old Castrated male Bedlington terrier (10.0 kg of body weight) was presented with heart murmur and occasional coughing. Diagnostic imaging studies revealed supravalvular pulmonic stenosis (maximal velocity 2.91 m/s) from abnormal membranous structure (aperture) distal to the pulmonary valve in the main pulmonary artery. Further study also revealed pulmonic regurgitant (1.82 m/s of peak velocity, 13.2 mmHg of pressure gradient) jets started from the abnormal membranous structure. Since the dog had no obvious clinical signs related to heart failure, no interventional therapy including balloon dilation was considered in this case. Instead, medical treatment for preventing further deterioration of clinical signs related to PS was done with enalapril. This case report described a rare case of type III supravalvular PS in a dog, which has never been reported. Further deterioration of clinical signs has yet been recognized after medical treatment.

• Journal of Chest Surgery
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• v.28 no.10
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• pp.932-934
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• 1995

Esophageal stenosis due to ectopic tracheobronchial remnants is an uncommon anomaly and only few cases were reported in the literature. We have experienced two case of esophageal stenosis due to ectopic tracheobronchial remnants and performed operative correction. The one patient was a five year old male with a chief complaint of swallowing difficulty from birth and the other was a twenty-three year old female with a slowly incresing symptom of dysphagia for twenty years. both of them were performed surgical correction by esophagectomy of the stenotic portion and esophago-gastrostomy with anti-reflux procedures. The resected specimens of the these two patients showed ectopic tracheobronchial chondroepithelial tissue withinthe esophageal wall histipathologically. Postoperative course was uneventful and have been in good condition without any problems.

• Journal of Chest Surgery
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• v.28 no.2
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• pp.201-205
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• 1995

Most of the patient with endobronchial tuberculosis have some degree of bronchial stenosis. however, a part of bronchial stenosis need aggressive treatment for the patency because of severe symptoms. The self-expendable metallic stents provide palliative treatment for narrowed airways where surgical resection is inadvisable. We experienced a successful left wedge pneumonectomy on a 29-year-old woman with obstruction of left main bronchus due to complication of the bronchial stent. She had inserted self-expendable metallic stents on left main bronchus of the tuberculous bronchial stenosis two times. There was no specific postoperative complication.

• Journal of Chest Surgery
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• v.21 no.2
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• pp.414-421
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• 1988

Concerning the operative technique for the relief of discrete subvalvular aortic stenosis, emphasis by some authors has been placed on the superiority of blunt dissection in the enucleation of the entire, obstructing structure such as membranous or fibrous ring stenosis compared with the conventional resection by sharp dissection technique. Here report a case operated applying the technique of blunt dissection, analogous to endarterectomy, which resulted in good clinical improvement. The technique is such that the tissue causing obstruction is peeled off the ventricular septum along the plane of cleavage using a dissector, starting under the commissure between right and left coronary cusps. As for the origin of stenosis this case imply a possibility of different mechanism of etiology evidenced by that the tissue removed consisted of elastic fibers only.

• Journal of Chest Surgery
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• v.33 no.9
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• pp.748-751
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• 2000

The diffuse form of supravalvar aortic stenosis represents a surgical challenge when the ascending aorta, aortic arch, proximal descending thoracic aorta and arch arteries are involved. It can be treated by a variety of surgical approaches. We report a case of severe diffuse supravalvar aortic stenosis combined with an aortic valve anomaly and occlusion of the right coronary artery ostium in a 14-year-old boy with Williams syndrome. We enlarged the aortic root(Nick's procedure), ascending aorta, aortic arch, proximal descending thoracic aorta, and innominate artery with patches and replaced aortic valve with 19 mm St. Jude valve. Deep hypothermic circulatory arrest and retrograde cerebral perfusion were used during repair of the arch and arch artery.

• Korean Journal of Veterinary Research
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• v.56 no.4
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• pp.261-264
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• 2016

A nine-month-old Pomeranian dog with exercise intolerance and syncope was presented. The dog was depressed with grade 4 systolic murmur on cardiac auscultation. Based on cardiac examination, the dog was diagnosed with severe subaortic stenosis with involvement of the anterior mitral valve. ${\beta}-blocker$ administration was initiated and clinical signs were improved, but not fully resolved. Balloon valvuloplasty was performed and the dog survived for nearly one year without clinical sign and the cardiac troponin I level was normalized. This case describes successful management of severe subaortic stenosis in a small breed dog through balloon valvuloplasty.

• Proceedings of the KOR-BRONCHOESO Conference
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• 1987.05a
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• pp.17.1-17
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• 1987

근래 기관내 삽관을 통한 보조호흡술의 발달과 각종 사고로 인한 경부외상의 증가로 인하여 기관협착증이 속발되는 빈도가 높아지는 경향을 보이고 있다. 기관협착증은 관강의 협소 및 관내 분비물의 저류로 인하여 심각한 호흡곤란을 초래하게 된다. 이러한 기관협착을 치료하기위하여 관강을 증폭시키고, 효율적인 기도점막으로 환원시키기란 쉽지 않다. 최근 3년간 본 교실에서 급성 기관협착 4례(기관외상 2례. 막성협착 2례), 만성 기관협착 6례(stomal stenosis 2례, cuff stenosis 1례, mixed stenosis 3례)에 대하여 기관륜의 재배열(2례), T-tube stenting(5례), 이개연골편을 이용한 기관성형술(1례), 협착부의 제거 및 단단문합술(2례) 등으로 각각 치료한 경험을 문헌고찰과 함께 보고하는 바이다.

• Korean Journal of Bronchoesophagology
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• v.13 no.1
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• pp.43-46
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• 2007

Nasopharyngeal stenosis is an obliteration of the normal communication between the nasopharynx and the oropharynx resulting from the fusion of the tonsillar pillars and soft palate to the posterior pharyngeal wall. It is a rare but serious problem. The most common etiology is currently the surgical trauma associated with uvulopalatopharyngoplasty or adenotonsillectomy. It can range in severity from a thin band to a complete obstructing cicatrix, Symptoms vary from mild hyponasal speech to almost complete nasal obstruction with oral breathing, We present a case of a 16 year-old male with nasopharyngeal stenosis after radiofrequency-assisted adenoidectomy in this paper. This patient was managed by synechiolysis, obturator and buccal mucosal graft.

• Journal of Korean Neurosurgical Society
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• v.46 no.3
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• pp.265-268
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• 2009

Two cases of dynamic lumbar spinal stenosis were identified by the authors using axial loaded magnetic resonance image (MRI). In both cases, the patients presented with neurogenic claudication but MRI in decumbency showed no definite pathologic condition associated with their symptoms. In contrast, axial loaded MRI demonstrated constrictive spinal stenosis and a significantly decreased dural sac caused by epidural fat buckling and thickening of the ligamentum flavum in both cases. In the second case, a more prominent disc protrusion was also demonstrated compared with decumbent MRI. After decompressive surgery, both patients had satisfactory outcomes. Axial loaded MRI can therefore give decisive information in dynamic spinal disorders by allowing simulation of an upright position.

• Korean Journal of Bronchoesophagology
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• v.1 no.1
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• pp.50-54
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• 1995

Despite improvement in respiratory care, including widespread use of low pressure and high volume cuffed tubes, tracheal stenosis remains a feared complication of prolonged intubation and tracheostomy. In such patients, other coexisting problems such as vocal cord paralysis, tracheoesophageal fistula, noncontiguous stenotic segments and laryngeal stenosis may occasionly be encountered. Therefore tracheal stenosis still presents a significant management problem, despite recent endoscopic advances and surgical techniques. Between 1991 and 1994, authors preformed tracheal resection with end-to-end anastomosis on 11 patients with tracheal stenosis. The total success rate (asymptomatic patients with patent airway) was 72.7% and there were no serious complication. This report reviews our experience about this procedure and surgical results. And it investigates associated factors for successful results.