• Journal of Chest Surgery
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• 제34권7호
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• pp.557-558
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• 2001

순턴향대학 턴안병원 흥부외과에서는 Stan$\ulcorner$old type A급성 대동맥 박리증, 대동맥 근부 동맥류 및 대동맥 폐쇄부전을 보인 45세 말판 증후군 환자에게 24m Hemashield 도관을 이용하여 Yacoub-David 수술법에 의한 대동맥 근부 개형술(aortic root remodeling procedure)을 시행하였다 수술은 환자의 대동맥 판막을 보존하면서 대동맥등을 포함한 대동맥 근부의 질병조직을 모두 제거한 후, 글이 발살바동 모양으로 3등분된 인조혈관으로 대동맥등으로부터 상행 대동맥가지 대치하는 방법으로 하였다. 환자는 수술 후 양호한 회복을 보였고 대 동맥 판막의 역류는 완전히 교정되었다.

• Journal of Chest Surgery
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• 제45권1호
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• pp.24-29
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• 2012

Background: The conventional method of aortic cross-clamping is very difficult and increases the risk of cerebral infarct due to embolism of the calcified aorta in these patients. Accordingly, we analyzed our experience with 11 cases of ascending aorta and aortic valve replacement with hypothermic circulatory arrest. Materials and Methods: From January 2002 to December 2009, 11 patients had ascending aorta and aortic valve replacement with hypothermic arrest at our hospital. We performed a retrospective study. Results: There were 5 males and 6 females, with a mean age of 68 years (range, 44 to 82 years). Eight patients had aortic stenosis, and 3 patients had aortic regurgitation. An aortic cannula was inserted into the right axillary artery in 3 patients and ascending aorta in 6 patients. Two patients with aortic regurgitation had a remote access perfusion catheter inserted though the right femoral artery. The mean cardiopulmonary bypass time was 180 minutes (range, 110 to 306 minutes) and mean hypothermic circulatory arrest time was 30 minutes (range, 20 to 48 minutes). The mean rectal temperature during hypothermic circulatory arrest was $21^{\circ}C$ (range, $19^{\circ}C$ to $23^{\circ}C$). No patient had any new onset of cerebral infarct or cardiovascular accident after surgery. There was no hospital mortality. Early complications occurred in 1 patient who needed reoperation due to postoperative bleeding. Late complications occurred in 1 patient who underwent a Bentall operation due to prosthetic valve endocarditis. The mean follow-up duration was 32 months (range, 1 month to 8 years) and 1 patient died suddenly due to unknown causes after 5 years. Conclusion: Patients with a calcified aorta can be safely treated with a technique based on aorta and aortic valve replacement under hypothermic circulatory arrest.

• Journal of Chest Surgery
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• 제29권8호
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• pp.867-874
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• 1996

이 연구는 대동맥판역류증이 있으면서 좌심실수축말기용적(left ventricular end-systolic volullle)이 커져있는 환자에서 수술전 좌심실 최고수축기압수축말기용적비(left ventricular peak systolic presslle/end-systolic volume ratio)를 판막치환후의 증상적 호전 판단의 자료로서의 적용 여부를 검토하기위한 것이 다 대상은 중정도 이상의 대돈맥판역류증이 있고다른 심혈관계의 이상이 없으면서 좌심실수축말기용적이 60mm2 넘는 21명(남 15, 여 6, 15까에서 60세가지 연령 분포)이었다. 이들을 대상으로 심도자시 통 상적으로 측정하는 여러 변수와 판막치환후 증상적 호전과의 관계에 대해서 분석하였다. 수술 6개월후 증세의 호전이 13명(62%)의 환자에서 있었고, 8명(38%)에서는 증세의 변화가 없었다. 복합변수분석을 통해서 좌심실최고수축기압$\boxUl$수축말기 용적 비는 통계적으로 유의하게 수술 a개월후의 기능적분류상태(p=0.005)와 수술전에 비해 수술 6개월후 기능적분류상태의 변화 정도(p=0.032)를 판단 하는 지표임을 나타냈었다. 판막치환 6개월후 비가 1.71 mmHg/ml/m2 이상되는 모든 환자는 기능상태 I 혹은 II를 유지한 반면 비가 1.71 mmHg ml/m2 미만인 환자에서는 40%가 기능적분류상태 III이 있다. 좌심실 수축말기 용적이 60 ml/m2 이상 커져 있는 대동맥 판역류증 환자에서 좌심실최고수축기 압1수축 말기용적비는 판막치환후의 증상적 호전을 예측하는 지표로 사용될 수 있다.

• Journal of Chest Surgery
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• 제56권6호
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• pp.445-448
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• 2023

A 25-year-old man returned to Seoul National University Children's Hospital with mild dyspnea on exertion. He had undergone an arterial switch operation at 1 month after birth to correct a complete transposition of the great arteries and a ventricular septal defect. When the patient was 15 years old, dilatation of the neo-aortic sinus and annulus was first identified; since then, it had gradually increased. Given the young age of the patient and the degree of aortic regurgitation (AR), which was mild to moderate, we opted to perform a valve-sparing neo-aortic root replacement with aortic valve repair. Postoperative echocardiography showed successful reductions in the sizes of the aortic sinus and annulus, with only mild AR remaining.

• Journal of Chest Surgery
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• 제24권10호
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• pp.979-986
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• 1991

From October 1988 to November 1989, seven patients underwent valve replacement during the active phase of native valve endocarditis. There were 4 males and 3 females whose mean age was 41 years[range, 16 to 68 years]. Preoperative two-dimensional and Doppler echocardiography showed vegetations and severe valvular regurgitation in all patients. Blood cultures were positive in 4, and negative in 3 patients Organisms were alpha-hemolytic Streptococcus in 2, Staphylococcus epidermidis in 1, Erysipelothrix rhusiopathiae in 1 patient Valve tissue cultures were negative in all patients. Intravenous antibiotic therapy had been done for 3 to 18 days in 5 patients pre-operatively and was not done in 2 patients, Indications for operation were heart failure in h, and systemic emboli in 1 patient. The aortic valve was involved in 3, mitral in 1, and both aortic and mitral in 3 patients, One operative death[14.4%] occurred in patient with cardiogenic shock before operation. Late death occurred in one on 14 months after operation. The remaining 5 patients were followed up over a two year period in good condition. In conclusion, native valve endocarditis with severe heart failure must be considered for early operation.

• Journal of Chest Surgery
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• 제56권5호
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• pp.311-312
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• 2023

• Journal of Chest Surgery
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• 제21권6호
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• pp.1117-1123
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• 1988

Prolapse of the aortic valve is the main cause of insufficiency of the aortic valve as a complication of ventricular septal defect. Aortic insufficiency gets worse by the progress of prolapse of aortic valve due to lack of support of the valve and the hemodynamic effect of blood flow through the ventricular septal defect. This produces typical clinical picture, that may be serious and threatening when it is untreated. Type and timing for the surgical treatment of the ventricular septal defect with aortic insufficiency is considered. Among 113 ventricular septal defect, 9 patients of ventricular septal defect with associated aortic insufficiency were experienced from June. 1983 to June 1988 at the Department of Thoracic and Cardiovascular Surgery, Chon-Buk University Hospital. Male was 6 patients and female was 3 patients. Ages were from 7 years to 24years. 5 patients were from 10 to 19 years age. 3 patients were below 10 years age. The ratio of pulmonary blood flow to systemic f low [Qp/Qs] was 1.53 and in pulmonary vascular resistance, normal or slight increase was 7 patients, moderate 1 patient, and severe 1 patient. Ventricular septal defect was subpulmonic in 5 patients and infracristal in 4 patients. Prolapse of right coronary cusp was 7 patients, right and non coronary cusp 1 patient and non coronary cusp 1 patient. Teflon patch closure of ventricular septal defect was undertaken in 3 patients and primary closure in 1 patient. Among the 4 patients of defect closure alone, one patient performed valve replacement 7 months later due to progressive regurgitation and cardiac failure and the result was good. The other 3 patients were good result. Closure of ventricular septal defect and aortic valvuloplasty performed in 4 patients. 2 patients of these required valve replacement for the sudden intractable cardiac failure and died due to low cardiac output. The cause of intractable cardiac failure was tearing of repaired valve at the fixed site. The other 2 patients were good result. Closure of ventricular septal defect and valve replacement performed in 1 patient with good result.

• Journal of Chest Surgery
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• 제47권2호
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• pp.137-140
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• 2014

A 50-year-old female was admitted to Pusan National University Hospital with complaints of fatigue and sweating. Echocardiography showed a small patent ductus arteriosus (PDA) and highly mobile vegetations on the aortic valve. Emergency operation was performed due to the high risk of embolization and severe aortic regurgitation. When the pulmonary artery opened, we found unexpected fresh vegetation. The tissue of the PDA was fragile and infected. We successfully removed the infected tissue, closed the PDA with a patch, and replaced the aortic valve with a mechanical prosthesis.

• Korean Journal of Radiology
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• 제22권6호
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• pp.890-900
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• 2021

Objective: To identify the association between morphological and functional characteristics of the bicuspid aortic valve (BAV) and bicuspid aortopathy and to identify the determinants of aortic dilatation using transthoracic echocardiography (TTE) and cardiac computed tomography (CCT). Materials and Methods: This study included 312 subjects (mean [SD] age, 52.7 [14.3] years; 227 males [72.8%]) who underwent TTE and CCT. The BAVs were classified by anterior-posterior (BAV-AP) or right-left (BAV-RL) orientation of the cusps and divided according to the presence (raphe+) or absence of a raphe (raphe-) based on the CCT and intraoperative findings. The dimensions of the sinus of Valsalva and the proximal ascending aorta were measured by CCT. We assessed the determinants of aortic root and proximal ascending aortic dilatation (size index > 2.1 cm/m²) by Univariable and multivariable logistic regression analyses. Results: Of the 312 patients, BAV-AP was present in 188 patients (60.3%), and 185 patients (59.3%) were raphe+. Moderate-to-severe aortic stenosis (AS) was the most common hemodynamic abnormality (54.8%). The most common type of aortopathy was the combined dilated root and mid-ascending aortic phenotype (62.5%). On multivariable analysis, age and AS severity were significantly associated with aortic root dilatation (p < 0.05), and age, sex, and AS severity were significantly associated with ascending aortic dilatation (p < 0.05). However, the orientation of the cusps, presence of a raphe, and severity of aortic regurgitation were not associated with aortic root and ascending aortic dilatation. Conclusion: BAV morphological characteristics were not determinants of aortic dilatation. Age, sex, and AS severity were predictors of bicuspid aortopathy. Therefore, age, sex, and AS severity, rather than valve morphology, need to be considered when planning treatment for BAV patients.

• Journal of Chest Surgery
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• 제28권1호
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• pp.65-68
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• 1995

Pectus excavatum occasionally occurs in patients who have underlying cardiac disease, especially Marfan syndrome. This report describes a patient with pectus excavatum who had ascending aortic aneurysm with aortic regurgitation and anterior leaflet prolapse of mitral valve. This patient underwent replacement of aortic valve and ascending aorta with 25 mm SJM valved conduit graft[Bentall operation with Cabrol shunt , and mitral valve replacement with SJM 31 mm, the pectus excavatum was corrected at the time of completion of the intracardiac operation with the modified sternal turnover. This procedure offered excellent operative exposure for the inracardiac operation with prevention of low cardiac output after operation due to depressed sternum and maintained chest wall stability resulting good cosmetic chest wall appearance. This patient recovered and discharged in good postoperative result with minimal temporary peroneal nerve palsy in his left leg.