• Journal of Chest Surgery
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• v.34 no.4
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• pp.356-360
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• 2001

일시적 혹은 단기간의 심폐보조는 여러 형태의 심부전에서 널리 이용되어 왔다. 이 중 체외막산소화장치는 고식적 치료에 반응없는 환자에서 주로 사용되는데, 소아에서는 자주 이용되어 왔으나 성인에서는 그 적응증이 명확하지 않았으며 결과도 만족스럽지 못했다. 환자는 승모판 협착증을 가진 32세의 여자로 제왕절개술후 발생한 폐부종으로 내원하였다. 내원시 환자는 쇽상태로 강심제, 폐혈관확장제, 이뇨제등에 반응이 없었다. 우측 대퇴정-동맥캐뉼라를 통하여 14시간동안 체외막산소화장치를 이용하였으며, 환자상태는 가동 즉시 호전을 보였다. 이후 양측판막치환술을 시행하였고 수술 후에도 체외막산호화장치를 지속하였다. 체외막산호화장치는 수술시간을 포함하여 모두 62시간동안 가동하였으며, 이탈(weaning)은 안정된 혈류역학, 호전된 폐부종, 기저질환의 교정등을 통하여 성공적으로 이루어졌다. 환자는 판막수술 후 30일째 특별한 합병증없이 퇴원하였다.

• Journal of Chest Surgery
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• v.40 no.6 s.275
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• pp.445-447
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• 2007

Occlusion of a coronary artery ostium and especially occlusion of the right by an aortic cusp is a rare condition. We experienced an adult patient with occlusion of the right coronary ostium that was due to fusion of the right coronary cusp to the aortic wall along with underlying rheumatic aortic valve stenosis. During the operation, the adherent right coronary cusp was excised. After confirming that the right coronary ostium was patent, the other cusps were removed, and this followed by replacement of the aortic valve with a mechanical valve. The postoperative course was uneventful.

• Clinical and Experimental Pediatrics
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• v.51 no.7
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• pp.775-779
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• 2008

Vallecular cyst is an uncommon but potentially dangerous condition causing stridor and has been associated with sudden airway obstruction resulting in death due to its anatomical location in neonates. It may also present with various degrees of feeding problems resulting in failure to thrive. When a vallecular cyst is suspected clinically, endoscopic laryngoscopy is necessary to visualize it. Other conditions leading to neonatal stridor such as laryngomalacia and other laryngotracheal abnormalities should be ruled out. Marsupialization with a $CO_2$ laser is the most effective and safest treatment to prevent recurrence. We report a case of a 1-month-old male infant with a vallecular cyst synchronous with gastroesophageal reflux, and failure to thrive. He was referred to our hospital because of hoarseness, inspiratory stridor, feeding-cyanosis, chest retraction and failure to thrive. Diagnostic workup revealed a cyst at the tongue base, suggesting a vallecular cyst. The cyst was removed by laryngomicrosurgery with $CO_2$ laser. After the surgery, the symptoms improved and the body weight increased steadily. We report a successfully treated case of neonatal vallecular cyst with symptoms of upper respiratory obstruction, gastroesophageal reflux, and failure to thrive.

• Proceedings of the KOR-BRONCHOESO Conference
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• 1993.05a
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• pp.81-81
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• 1993

Tracheal stenosis in children are often the result of prolonged intubation and its treatment depends on the severity and extent of the involved segment. Repeated surgical endoscopic procedures may be indicated in those with mild stenoses mainly consisting of granulation tissues, However, surgical reconstruction of the airway should be performed in patients with severe, extensive stenoses composed of mature scar tissue. The senior author has successfully managed such patients with cartilage graft augmentation and tracheal resection anastomosis. This is a presentation of 9 pediatric patients with tracheal stenosis who have been successfully treated by resection anastomosis. The details of the cases and indications for this type of surgery are discussed.

• Journal of Chest Surgery
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• v.38 no.8 s.253
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• pp.545-550
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• 2005

Background: Discrete subaortic stenosis is known to recur frequently even after surgical resection. We retrospectively reviewed the preoperative and postoperative changes in pressure gradient through left ventricular outflow tract, and the recurrence rate. Material and Method: Between September 1984 and December 2004, 34 patients underwent surgical treatment. Mean age of patients was $17.1\pm15.2$ years and 19 patients $(55.9\%)$ were male, 16 patients $(47.1\%)$ had previous operations and associated diseases were aortic regurgitation (11), coarctation of aorta (3), and others. Result: Immediate postoperative peak pressure gradient was significantly lower than preoperative peak pressure gradient (21.8 mmHg vs 75.8 mmHg, p<0.04). Peak pressure gradient measured after 50.3 months of follow up was 20.2 mmHg which was also significantly lower than that of preoperative value but not significantly different from that of immediate postoperative value. There was no surgical mortality but one patient developed cerebral infarction. Mean follow up duration was $69.8\pm54.6\;months$. During this period, 5 patients $(14.7\%)$ had reoperation, 3 $(8.8\%)$ of whom were due to recurred subaortic stenosis. We found no risk factors for recurrence and survival for free from reoperation was $76.4\%$. Conclusion: Excision of subaortic membrane combined with or without myectomy in discrete subaortic stenosis showed sufficient relief of left ventricular outflow tract obstruction with low mortality and morbidity, but careful long term follow up is necessary for recurrence, since it is not predictable.

• Journal of The Korean Radiological Technologist Association
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• v.25 no.1
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• pp.109.1-109.1
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• 1999

• Proceedings of the KOR-BRONCHOESO Conference
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• 2002.12a
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• pp.5-5
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• 2002

• Korean Journal of Bronchoesophagology
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• v.1 no.1
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• pp.42-49
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• 1995

• Proceedings of the KOR-BRONCHOESO Conference
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• 2005.04a
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• pp.22.2-23
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• 2005

• Proceedings of the KTCVS Conference
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• 1996.10a
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• pp.85-85
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• 1996