• 제목/요약/키워드: origin defect

검색결과 118건 처리시간 0.029초

개방성 동맥관과 우폐동맥 이상기시를 동반한 대동맥 폐동맥 중격결손증 1례 보 (Aortopulmonary septal defect with anomalous origin of the RPA from aorta and PDA)

  • 남구현
    • Journal of Chest Surgery
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    • 제17권3호
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    • pp.398-401
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    • 1984
  • Aortopulmonary septal defect is rare congenital heart disease. An 8-year-old girl was diagnosed as a ventricular septal defect with patent ductus arteriosus at Department of Thoracic and Cardiovascular Surgery of Chungnam National University Hospital. On operation, the defect was confirmed as an aortopulmonary septal defect [Type I], anomalous origin of right pulmonary artery from aorta [Type Ill] and patent ductus arteriosus. The defect was repaired anatomically with cardiopulmonary bypass. But she was not survived because of uncontrollable bleeding from aorta.

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Relation Between Defect State and Negative Ultra-Violet Photoresponse from n-ZnO/p-Si Heterojunction Diode

  • 조성국;남창우;김은규
    • 한국진공학회:학술대회논문집
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    • 한국진공학회 2013년도 제45회 하계 정기학술대회 초록집
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    • pp.191.2-191.2
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    • 2013
  • The negative photoconductivity was frequently observed in some semiconductors. It was known that the origin of the negative photoresponse from ZnO is molecular chemisorption or the charging effect of nanoparticles in bulk matrix. However, the origin of the negative photoresponse of thin film was not still clear. One of possible explanation is due to the deep level trap scheme, which describes the origin of the negative photoresponse via defect state under illumination of light. However, the defect states below Fermi level have high capture rate by Coulomb effect, so that these states are usually filled by electrons if the defect states have donor-like character. Therefore the condition which the defect states located in below Fermi level should be partially filled by electrons make more difficult to understand of mechanism of the negative photoresponse. In this study, n-ZnO/p-Si heterojunction diodes were fabricated by UHV RF magnetron sputter. Then, some diodes show the negative photoresponse under ultra-violet light illumination. The defect state of the ZnO was analyzed by photoluminescence and deep level transient spectroscopy. To interpret the negative photoconductivity, band diagram was simulated by using SCAPS program.

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대동맥 협부 발육부전, 동맥관 개존, 대동맥기시 우폐동맥을 동반한 원위 대동맥폐 동맥 중격결손의 일차 완전 교정술 1례 (One-stage Repair of Distal Aortopulmonary Septal Defect, Aortic Origin of Right Pulmonary Artery, Patent Ductus Arteriosus and Hypoplasia of Aortic Isthmus -A case of report-)

  • 이호철;류한영
    • Journal of Chest Surgery
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    • 제29권5호
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    • pp.554-558
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    • 1996
  • 대동맥 협부 발육부전, 동맥관 개존, 대동맥기시 우폐동맥을 동반한 원위 대동맥폐동맥 중격결손을 가진 생후 50일된 여아에서 동맥관 결찰,대동맥 협부 발육부전 부위의 절제와 대동맥의 단단문합,우폐동맥과 주폐동맥의 직접 연결과자가심낭편을이용한대동맥폐동맥 중격결손의 봉합을 포함한 일차 완전 교정술을 인공 체외 순환과 완전 순환 정지하에 시행하여 좋은 수술 결과를 얻었다.

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Distal Type of Aortopulmonary Septal Defect with Aortic Origin of Right Pulmonary Artery and Interruption of the Aortic Arch - A Case of Successful Surgical Report -

  • 정윤섭;송명근
    • Journal of Chest Surgery
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    • 제24권7호
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    • pp.693-700
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    • 1991
  • A rare case of the association of distal aortopulmonary septal defect, aortic origin of the right pulmonary artery, intact ventricular septum, patent ductus arteriosus and interrupted aortic isthmus in a 40-day-old infant is reported. The infant was suffered from two operations with an interval of nine days. At the first operation a 10mm polytetrafluoroethylene prosthesis was inserted instead of the interrupted aortic isthmus and ductus was ligated via the left posterolateral thoracotomy. But the patient could not be weaned from the respirator because of large amount of left-to-right shunt. So the total correction was subsequently performed after an interval of nine days. At the second operation, tunneling of the right pulmonary artery to the main pulmonary artery through the aortopulmonary septal defect was performed using the Dacron patch via a longitudinal transaortic approach and a separate autologous pericardial patch was applied to the longitudinally incised margins of the anterior wall of the ascending aorta. The second postoperative course was relatively uneventful except some respiratory distress and nutritional problems. Now he is at 6 months of age and thrives well without any symptom. Because the success of the surgical repair of this complex anomalies depends upon the accurate diagnosis and meticulous design of each step of procedure prior to operation these problems are also discussed.

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Surgical Removal of Intrathoracic Lipoma from Herniated Omentum through the Diaphragmatic Defect in an Abyssinian Cat

  • Lee, Jiyeon;Park, Hyojin;Kim, Jieyoo;Kim, Na-Hyun;Lee, Dongbin;Lee, Hee-Chun;Hwang, Tae-Sung;Lee, Jae-Hoon
    • 한국임상수의학회지
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    • 제38권4호
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    • pp.174-178
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    • 2021
  • A nine-year-old neutered male cat was presented with chronic cough and vomiting. Thoracic radiography showed regions of fatty opacity in the right caudoventral region. On positive contrast celiography, contrast agent did not move into thoracic cavity. Computed tomography revealed 7-mm diameter of defect at the right diaphragmatic crus and a 2-mm diameter defect at the left ventral diaphragmatic crus. Through the right diaphragmatic defect omental herniation was confirmed by the presence of contrast enhanced omental vessel running across the diaphragm. On exploratory thoracotomy, the omentum protruded into the thorax through the right diaphragmatic defect, and it contained a yellowish lipomatous mass. The protruded omentum containing a mass in the thorax was removed, and the right diaphragmatic defect was closed. Histopathologic examination revealed that the protruded omentum showed normal omental structure and the adipose mass showed lipoma surrounded by fibrous tissue. In conclusion, a thorough examination is necessary to confirm the origin of the mass located near the diaphragm.

대동맥동 동맥류 파열 - 1례 보고 - (Ruptured Sinus of Valsalva Aneurysm - A Case Report -)

  • 김성수;조중구;김공수
    • Journal of Chest Surgery
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    • 제22권4호
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    • pp.687-692
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    • 1989
  • Aneurysm of the sinus of Valsalva is an uncommon cardiac anomaly, usually congenital in origin, which may occur as an isolated defect or in conjunction with other cardiac malformation. This report is a case of a ruptured sinus of Valsalva aneurysm with ventricular septal defect in a 18-year-old female patient who complained progressive exertional dyspnea. She underwent operative management using total cardiopulmonary bypass. The fistula originated from the right coronary sinus and ruptured into the right ventricle and coexistent lesion was supracristal ventricular septal defect. The repair was done through aortic and right ventricular approach. The ruptured sinus of Valsalva was closed with pledget suture and the ventricular septal defect was closed with patch. The postoperative result was good.

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Identifying and quantitating defects on chemical vapor deposition grown graphene layers by selected electrochemical deposition of Au nanoparticles

  • So, Hye-Mi;Mun, Jeong-Hun;Bang, Gyeong-Sook;Kim, Taek-Yong;Cho, Byung-Jin;Ahn, Chi-Won
    • Carbon letters
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    • 제13권1호
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    • pp.56-59
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    • 2012
  • The defect sites on chemical vapor deposition grown graphene are investigated through the selective electrochemical deposition (SED) of Au nanoparticles. For SED of Au nanoparticles, an engineered potential pulse is applied to the working electrode versus the reference electrode, thereby highlighting the defect sites, which are more reactive relative to the pristine surface. Most defect sites decorated by Au nanoparticles are situated along the Cu grain boundaries, implying that the origin of the defects lies in the synthesis of uneven graphene layers on the rough Cu surface.

대동맥중격결손증[수술치험 1예] (Aorticopulmonary Window: one case report)

  • 최영호
    • Journal of Chest Surgery
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    • 제14권3호
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    • pp.302-306
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    • 1981
  • Aorticopulmonary window is a rare anomaly among congenital heart disease. Various terms have been suggested including A-P window, A-P fenestration, fistula, aorticseptal defect etc. The defect lies usually between the left side of the ascending aorta and right wall of the pulmonary artery just anterior to the origin of the right main pulmonary artery. We have experienced one case of aorticopulmonary septal defect which was diagnosed as V5D with pulmonary hypertension in 1 4/12 year old, 7.2 Kg, male patient. Operation was done under the hypothermic cardiopulmonary bypass using 5t. Thomas cardioplegic solution. Vertical right ventriculotomy over the anterior wall of RVOT revealed no defect in the ventricular septum, and incision was extended up to the main pulmonary artery to find the source of massive regurgitation of blood through MPA. Finger tip compression of the aorticopulmanary window was replaced with Foley bag catheter balloon, and the $7{\times}10$ mm aorticoseptal defect located 15mm above the pulmonic valve was sutured continuously wih 3-0 nylon suture during azygos flow of cardiopulmonary cannula which was located distal to the window resulted massive air pumping systemically, and temporary reversal of pumping was tried to minimize cerebral air embolism. Remained procedure was done as usual, and pump off was smooth and uneventful. Postoperatively, patient was attacked frequent opistotonic seizure with no recovery sign mentally and p.hysically. Vital signs were gradually worsen with peripheral cyanosis and oliguria, and cardiac activity was arrested 1485 minutes after operation. Autopsy was performed to find the sutured window and massive edema of the brain.

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Technique of Coronary Transfer for TGA with Single Coronary Artery

  • Kim, Tae Ho;Jung, Jae Jun;Kim, Yong Han;Yang, Ji-Hyuk;Jun, Tae-Gook
    • Journal of Chest Surgery
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    • 제47권6호
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    • pp.529-532
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    • 2014
  • An eight-day-old neonate was diagnosed with dextro-transposition of the great arteries, atrial septal defect, patent ductus arteriosus, and a single sinus origin of the coronary arteries. The single coronary artery originated from the left sinus (sinus 2), had a proximal left circumflex arterial branch, and passed anteriorly to the right side of the aorta, further branching into the right coronary and left anterior descending arteries. We successfully performed an arterial switch operation and coronary transfer by tube graft reconstruction with autologous aortic tissue to treat the dextro-transposition of the great arteries and atrial septal defect with a single-sinus origin of the coronary arteries.