• Pediatric Gastroenterology, Hepatology & Nutrition
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• 제21권4호
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• pp.351-354
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• 2018

Congenital antral webs are a rare but relevant cause of gastric outlet obstruction in infants and children. The condition may lead to feeding refusal, vomiting, and poor growth. Due to the relative rarity of the disease, cases of congenital antral web are frequently misdiagnosed or diagnosed with significant delay as physicians favorably pursue diagnoses of pyloric stenosis and gastric ulcer disease, which are more prevalent. We report a case of an eight-month-old female who presented with persistent non-bilious emesis, feeding difficulties, and failure to thrive and was discovered to have an antral web. The web was successfully treated with endoscopic balloon dilation, which resolved her symptoms. Two years later, the patient remains asymptomatic and is thriving with weight at the 75th percentile for her age.

• 한국동물위생학회지
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• 제40권3호
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• pp.215-217
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• 2017

A 3-year-old chow chow dog with abdominal distention was referred to the Veterinary Teaching Hospital of Chungnam National University. The dog was diagnosed as Cor triatriatum dexter based on echocardiographic results, which demonstrated an abnormal membrane partitioning the right atrium. Echocardiography also revealed turbulent intra-atrial blood flow between the two chambers of the atrium. The dog was treated with balloon dilatation to enlarge the perforation in the abnormal membrane and to improve blood flow. As a result, although the membrane remained, increased perforation reduced the turbulent intra-atrial blood flow. Clinically the patient improved and eventually was discharged. This case is the first domestic Korean clinical veterinary report on the use of balloon valvuloplasty to treat Cor triatriatum dexter in a dog.

• Clinical and Experimental Pediatrics
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• 제49권9호
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• pp.917-929
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• 2006

Over the last several decades there has been a remarkable change in the therapeutic strategy of congenital heart disease. Development of new tools and devices, accumulations of experience, technical refinement have positively affected the outcome of interventional treatment. Many procedures including atrial septostomy, balloon valvuloplasty, balloon dilation of stenotic vessel with or without stent implantation, transcatheter occlusion of abnormal vascular structure, transcatheter closure of patent arterial duct and atrial septal defect, are now performed as routine interventional procedures in many institutes. In diverse conditions, transcatheter techniques also provide complementary and additive role in combination with surgery. Intraoperative stent implantation on stenotic vessels, perventricular device insertion, and hybrid stage 1 palliative procedure for hypoplastic left heart syndrome have been employed in high risk patients for cardiac surgery with encouraging results. Transcatheter closure of ventricular septal defect has been performed safely showing comparable result with surgery. Investigational procedures such as percutaneous valve insertion and valve repair are expected to replace the role of surgery in certain group of patients in the near future. Continuous evolvement in this field will contribute to reduce the risk and suffering from congenital heart disease, while surgery will be still remained as a gold standard for significant portion of congenital heart disease.

• Journal of Chest Surgery
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• 제53권4호
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• pp.222-225
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• 2020

Owing to varying clinical definitions of anastomotic stricture following esophageal reconstruction, its reported incidence rate varies from 10% to 56%. Strictures adversely impact patients' quality of life. Risk factors, such as the anastomosis method, leakage, ischemia, neoadjuvant chemoradiotherapy, and underlying disease have been mentioned, but conflicting information has been reported. Balloon dilation is regarded as a safe and effective treatment method for patients with benign anastomotic strictures. Reoperations are seldom required. The etiology and management of anastomotic strictures are reviewed in this article.

• 한국임상수의학회지
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• 제26권2호
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• pp.160-165
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• 2009

4개월령 수컷 박서 개(체중: 9 Kg)가 심잡음과 운동불내성을 주요 증상으로 내원하였다. 진단검사를 통해 환자는 대동맥 판막하 협착에 이환된 것을 확인할 수 있었다. 협착된 부위의 압력구배는 120 mmHg(와류의 속도: 5.4 m/s)이상이었으며, 환자는 풍선 확장술을 통해 임상증상을 개선하였다. 환자는 시술 후 주기적으로 모니터링 하였으며 다른 임상증상은 관찰되지 않았다. 이는 우리나라에서 대동맥 판막하 협착증에 이환된 환자에게 풍선 확장술을 통해 임상증상을 경감시킨 최초의 증례이다.

• 한국임상수의학회지
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• 제32권4호
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• pp.334-337
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• 2015

9개월령 프렌치불독(체중 13 kg)이 심한 심잡음과 운동불내성으로 내원하였다. 영상진단검사상, 폐동맥에서 5 m/s이상의 고속의 젯트와 우심실 비대가 확인되었다. 우심실과 유출로 사이의 압력구배가 100 mmHg이상이여서 풍선확장술로 치료하였다. 치료후 폐동맥에서 젯트속도는 2.1 m/s (PG = 18 mmHg)이하로 감속되었다. 환자는 그 이후에 별다른 진단검사상 악화소견이 관찰되지 않았다. 본 증례는 대퇴정맥으로 폐동맥 협착을 풍선확장술로 치료한 국내 첫 증례이다.

• Korean Chemical Engineering Research
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• 제49권2호
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• pp.238-243
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• 2011

본 연구는 기존의 인공심폐기의 단점을 보완하기 위하여 혈액펌프를 사용하지 않고 혈류의 흐름을 유도할 수 있는 기구(balloon)형 인공심폐기 설계를 위한 구조적 해석을 시도하였다. 가상의 모형 인공심폐기 내에서의 혈류의 흐름패턴을 분석하기 위하여 CFD 모델링 방법을 사용하였다. 이 시스템의 작동원리는 막 산화기 주위를 기구를 사용하여 압력하중을 인가하여 주기적으로 수축.이완되도록 하였으며, 시간에 따라 변화하는 시간 함수 값은 sine 반주기와 sine 주기를 계산하여 적용하였다. 이와 같은 방법으로 기구형 인공심폐기를 설계할 경우 한 방향에 대한 혈류의 움직임을 유도할 수 있다는 가정 하에 구조적 해석을 하였다. 실험결과 CFD 시뮬레이션을 통하여 인공심폐기의 입구와 출구에 서의 혈류의 속도와 압력을 측정하여 분석한 결과 한 방향에 대한 혈류의 유동이 발생하는 것을 확인하였다. 이와 같은 CFD 시뮬레이션은 혈류의 흐름특성을 미리 예측할 수 있어 인공심폐기 설계에 있어서 최적화된 디자인을 제공할 수 있을 것이라 판단된다.

• 한국임상수의학회지
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• 제34권4호
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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.

• 한국임상수의학회지
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• 제33권2호
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• pp.129-130
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• 2016

A 5-year-old male Laika dog was referred with chief complaint of dyschezia and tenesmus. The dog had rectal prolapse and it was corrected with rectal resection and anastomosis, a year ago. On rectal examination, the stricture of rectum was identified. The irregular scar tissues on serosal and muscular layers of rectum were noted and they were dispersed with partial thickness incision around rectum. Then, the colopexy and mechanical dilation with balloon catheter were applied. No recurrence of rectal prolapse and other complications were noted during follow up periods of 1 year. This report described a successfully corrected anastomotic rectal stricture in a dog.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• 제20권4호
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• pp.211-215
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• 2017

Esophageal strictures are seldom in children. In many countries, accidental ingestion of corrosives is a major cause of risk for stricture formation. Therefore, their management is a challenge. Safety and long-term efficacy of esophageal dilation for benign esophageal strictures has been confirmed in children. Because most children with structures are toddlers or younger, balloon dilatation is often preferred over bouginage. There is increasing evidence that short duration administration of high doses steroids may be of benefit in some specific situation (IIb esophagitis according to Zargar classification). Mytomycin-C application needs to be further evaluated. Stenting was reported to be successful in some refractory cases.