• Proceedings of the KTCVS Conference
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• 1995.10a
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• pp.54-54
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• 1995

• Proceedings of the KTCVS Conference
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• 1995.10a
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• pp.59-59
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• 1995

• Proceedings of the KTCVS Conference
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• 1998.10a
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• pp.55-55
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• 1998

• Journal of Chest Surgery
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• v.29 no.7
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• pp.780-784
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• 1996

The localized form of subaortic stenosis shows a spectrum of pathological lesions varing from dis- crete membrane to a thickened flbromuscular collar. Aortic valve is commonly involved late in the pro- cess resulting in regurgitation. Because of the likelihood o the progressive obstruction and aortic regurgitation, early elective oper- ation should be considered for the patient with subaortic stenosis. We experienced a case of localized fibromuscular subaortic stenosis associated with aortic regurgi- tation. Excision of the fibromuscular ridge and septal myectomy-myotomy relieved the subaortic seen- osis. Regurgitant aortic valve was repaired by peeling away the Hbrotic tissue on the cusps and subcommissural annuloplasty at the each commissural area. On postoperative echocardiographic examination, the systolic pressure gradient between left ventricle and aorta decreased markedly and the aortic regurgitation was not detected at all.

• Journal of Chest Surgery
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• v.29 no.5
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• pp.504-509
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• 1996

When a valve prosthesis is to be implanted in the aortic position, simple interrupted suture, figure-of- eight suture, or horizontal mattress suture technique is used as a suture method. However, the suture techniques may be unacceptable for aortic valve replacement in patients with friable annulus caused by some lesions, such as endocarditis and degenerative change. We used an alternative technique for the aortic vlave replacement in 4 patients with valve endocarditis, ) patients with degenerative valvular lesion, and 1 with rheumatic valvular disease. Mattress sutures through the annulus were placed with pledgets on the ventricular side of the annulus, whi h resulted in implantation of the prosthesis at a supra-annular level. Mechanical valves of 21 mm or larger were implanted in the supra-annular position in all patients and there was no impeded motion of leaflets during the follow-up period of mean 13.3 mouths. The transvalvular pressure gradient was less than 6 mm Hg in 3 patients and 20 to 40 mm Hg in 5 patients. The supra-annular implantation of mechanical aortic valve using a vertical mattress suture technique may be a useful alternative method of aortic valve replacement for the selected patients with friable or destroyed aortic annulus.

• Journal of Chest Surgery
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• v.26 no.4
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• pp.266-270
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• 1993

Aortic valve insufficiency with ventricular septal defect is usually treatment by plication of prolased cusps. We have performed the aortic valvuloplasty by the Trusler`s method in 14 patients of ventricular septal defect associated with aortic insufficiency. The reoperations were performed in the 4 cases[29%] due to recurrent aortic insufficiency after aotic valvuloplasty. Two patients underwent aoritc valvular replacements for the tears of repaired aortic cusps after primary aortic valvuloplasty for aortic insufficiency. The other two patients had aortic valvuloplasties again. Death occured in one case of aortic valvular replacements. The cause of death was low cardiac output syndrome soon after aortic valvular replacement for recurrent aortic insufficiency .

• Journal of Chest Surgery
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• v.33 no.12
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• pp.968-970
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• 2000

26세 남자가 길가다 버스에 치어, 다발성 늑골골절, 흉골골절, 우견갑골골절, 좌쇄골하동맥 폐색, 외상성 기관식도루로 입원 치료 중 이완기 심잡읍이 생겼다. 심초음파 검사에서 심한 대동맥판 폐쇄 부전과 증식물로 진단하였다. 심폐기 운영 하에 좌 우 관상 동맥 첨판에 10mm, 7mm 파열을 발견 5-0 Prolene 연속 봉합하여 좋은 수술 결과를 얻고 환자는 수술 14일에 퇴원하였다.

• Journal of Chest Surgery
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• v.34 no.7
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• pp.561-565
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• 2001

Patients who have complex endocarditis with involvement of both the aortic and mitral valves and intervalvular fibrous skeleton are among the most difficult to treat and still have the highest surgical mortality and morbidity rates. We report one case of aortic and mitral valve replacement with reconstruction of the fibrous skeleton performed in a 55-year-old female patient who had an aortic annular abscess and both the aortic and mitral prosthetic valve endocarditis with destruction of the fibrous skeleton. Previously, she had undergone redo double valve replacement\`, Transesophageal echocardiogram showed the paravalvular defect at the noncoronary aortic sinus and abnormal sinus tract along the fibrous skeleton. Emergent operation was performed due to positive blood cultures of staphylococcus epidermidis and persistent sepsis despite appropriate antibiotic therapy. After aortotomy extended to the roof of left atrium, both prosthetic valves and destroyed fibrous skeleton were completely resected and the aortic annular abscess was debrided and closed with a bovine pericardial patch. Reconstructions of both aortic and mitral annuli and the fibrous skeleton were done by using two separate bovine pericardial patches in triangular shape and mechanical valves were implanted. Postoperatively, adequate antibiotic therapies were continued and the patient was discharged at the postoperative 72 days without evidence of recurrence of endocarditis. Transthoracic echocardiogram of the postoperative 8 months shows no paravalvular leakage or recurrence of endocarditis and the patient has been followed up with no symptom.

• Clinical and Experimental Pediatrics
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• v.50 no.10
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• pp.976-981
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• 2007

Purpose : Aortic valve or aortic root (AoRo) replacement is occasionally required because of AoRo dilatation and aortic regurgitation (AR) in repaired tetralogy of Fallot (TOF). We evaluated AoRo size and possible factors associated with its hemodynamic nature in patients with repaired TOF. Methods : We investigated 130 repaired TOF patients more than 15 years of age who followed-up by echocardiography from January 2002 to December 2003. Of 130 patients, we identified 17 patients with AoRo dilatation, which was defined as ratio of expected AoRo size by standard nomogram (AoRo ratio) >1.5 (dilator group), and 113 TOF controls, with AoRo ratio <1.5 (non-dilator group). Results : Mean indexed AoRo size ($mm/m^2$) in the first echo was $24{\pm}3.2$ in the dilator group and $18{\pm}3.4$ in the non-dilator group (P<0.0001). AoRo rate of change (mm/year) from the first to latest echo study was $1.6{\pm}3.8$ in dilator group and $0.05{\pm}1.6$ in the non dilator group (P=0.0021). Patients from the dilator group showed a higher prevalence of pulmonary atresia (P=0.031) and a history of aortopulmonary shunt before repair (P=0.048), moderate to severe AR (P=0.0065), and increased left ventricular end-diastolic dimensions (P=0.003). Conclusions : A subset of patients late after TOF repair may show progressive dilatation of AoRo. To identify and prevent long-term sequelae in this patient group, regular follow-up and speculation about AoRo after TOF repair is recommended.

• Journal of the Korean Society of Radiology
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• v.84 no.6
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• pp.1337-1338
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• 2023