• Journal of Chest Surgery
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• v.33 no.11
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• pp.886-893
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• 2000

배경: 흉복부 대동맥류는 질환 자체가 광범위하고 수술 중 척수를 포함한 각종 장기의 보호 및 허혈 방지라는 면에서 아직도 수술 합병증이 높은 질환이다. 본 연구에서는 그 동안의 임상경험을 바탕으로 치료성적, 합병증 발생, 사망률 등을 검토하였다. 대상 및 방법: 1990년 1월부터 1999년 12월까지 흉복부동맥류로 수술을 시행한 38명의 환자를 대상으로 의무 기록 검토을 통한 후향적 분석을 시행하였다. 결과: 남자가 22명, 여자가 16명, 평륜 연령은 46.2$\pm$12.3세였고, 크로포드 진단분류 상 1형 이 13례(34.2%), 2형이 19례(50%), 3형이 4례(11%), 4형이 2례(4.8%)였다. 만성 대동맥박리증에 관련된 경우가 29례(76.3%)로 가장 많았고, Marfan 증후군이 동반된 경우가 9례(23.7%)에서 있었다. 원위부 대동맥 관류를 35례에서 시행하였으며, 고동맥-고정맥 심폐바이패스를 31례에서, 좌심방-고동맥 바이패스를 4례에서 시행하였다. 심폐바이패스를 이용한 31례중 4례에서 초저체온하 완전순환정지를 이용하였다. 대동맥 차단 중 복강내 주요 대동맥 분지로의 선택적 관류를 시행하였다. 대동맥류의 최대직경은 평균 8.2$\pm$2.4cm이었고, 동맥류가 파열된 경우는 11례(28.9%)에서 있었다. 전례에서 인조혈관을 이용한 대동맥의 치환술을 시행하였다. 단계적으로 흉복부 대동맥을 겸자하면서 인공혈관을 문합하였고, Adamkiewicz 동맥으로 생각되는 부위의 늑간 동맥을 문합해주었는데, 8번째부터 12번째 흉추 사이의 늑간 동맥 중 역류혈류가 나타나고 상대적으로 내경이 큰 것들을 문합해 주었다. 술 후 조기사망은 3례에서 있었으며, 사인은 심폐기 이탈 실패 (2례), 저혈압 및 산증(1례) 등이었다. 조기 합병증으로는 애성 5례, 출혈 5례, 창상간염 3례, 장기간의 인공호흡기보조가 3례 등이 있었다. 치명적인 조기 합병증인 하지마비는 2례(5.3%)에서 발생하였고, 이 중 1례는 대동맥의 심한 석회화로 늑간동맥을 문합해 주지 못했던 경우였다. 35명의 환자에서 평균 추적기간은 103.1$\pm$6.1 개월, 2년 생존율은 93.8%, 5년 생존율은 86.1%, 8년 생존율은 80.7%였다. 추척기간 동안 4례의 만기사망이 관찰되었고, 사인은 2례에서는 갑작스런 의식소실이 발생하여 규명하기 어려웠으며, 대동맥-식도루 발생에 의한 경우가 1례, 경동맥류 파열에 의한 경우가 1례 등이었다. 만기 합병증으로는 복부 대동맥류(2례), 상행 대동맥 및 대동맥 근부 확장(1례), 대동맥-늑막루(1례), 창상 부위 탈장(1례), 역행성 사정(1례) 등이 있었다. 결론: 저자들은 흉복부대동맥류의 수술에 있어 심폐우 회술 혹은 좌심방-고동맥 바이패스를 통한 원위부 관류 및 저체온법, 수술 시 척수의 혈류공급과 관련된 늑간동맥의 연결 등으로 주요 신경합병증의 발생을 줄이고 좋은 성적을 거두고 있다고 판단하였으며 향후 임상 경험 축적과 함께 보다 정련된 위험인자의 분석이 필요하다고 본다.

• Journal of Chest Surgery
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• v.43 no.2
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• pp.194-198
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• 2010

Intramural hematoma of the aorta (IMH) is the precursor or a variant of a classic aortic dissection where hemorrhage occurs within the aorta wall in the absence of an initial intimal tear. IMH has a high rate of mortality and morbidity. The optimal therapy for IMH is uncertain, yet the involvement of the ascending aorta is usually considered as an indication for surgery due to the associated risk of rupture or cardiac tamponade. We report here on a case of a 71-year-old man who presented with syncope. Because of misdiagnosis, he underwent computed tomography (CT) after 5 hrs from arriving to the ER. Computed tomography of the aorta revealed intramural hematoma of the ascending aorta with cardiac tamponade. He also had vascular complications such as acute renal failure and visceral ischemia. We performed emergency graft replacement of the total arch and ascending aorta. He was discharged without complication on postoperative day 14.

• Journal of Chest Surgery
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• v.30 no.8
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• pp.819-822
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• 1997

Aortic valve replacement with aortic allograft has been considered a treatment of choice for aortic valve disease secondary to bacterial endocarditis because of its good homodynamic performance and higher resistance to infection. The aortic root replacement technique might be superior to the subcoronary allograft implantation technique with regard to aortic regurgitation. A 46 yea,rs old male patient had acute aortic regurgitation with progressing heart failure secondary to acute bacterial endocarditis. The patient underwent emergent aortic root replacement using 20 mm aortic allograft. At operation, right coronary cusp perforation and heavy calcification of commissure between right and left coronary cusp were observed. The patient recovered well and postoperative echocardiography demonstrated no aortic regurgitation. Inflammatory signs were subsided after 8 weeks of antibiotics therapy. Medically uncontrolled acute bacterial endocarditis was treated successfully by aortic root replacement using aortic homograft.

• Journal of Chest Surgery
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• v.41 no.1
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• pp.61-67
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• 2008

Background: Conventional ascending aortic cross clamping is often limited. This study was carried out to evaluate the safety and efficacy of an endovascular aortic clamping technique with an intraaortic balloon catheter. Material and Method: From April 2004 to January 2007, surgery with endoaortic clamping was performed in seven patients. A retrograde access perfusion (RAP) catheter was used in six patients and a Pruitt's balloon catheter in two patients. The indication for the operation was a retrosternal pseudoaneurysm of the aortic root in six patients, diffuse calcification of the ascending aorta with aortic regurgitation in 2 patients and an atrial septal defect in one patient. Five patients had at least two prior cardiac surgeries. Result: Successful insertion of the catheter and endoaortic clamping was achieved in all patients. Conclusion: The endovascular aortic clamping technique with a balloon catheter was a useful alternative method for patients in whom conventional cardiac surgery was limited.

• Journal of Chest Surgery
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• v.38 no.10 s.255
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• pp.721-724
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• 2005

Aortocaval fistula is a rare complication of abdominal aortic aneurysm, involving less than $1\%$ of all abdominal aortic aneurysms. A 64-years old man with a long history of hypertension and abdominal aortic aneurysm had chest pain, dyspnea, epigastric discomfort and palpable abdominal pulsating mass. Physical examination revealed hypo­tension with a systolic blood pressure of 70 mmHg, a large pulsatile mass and a systolic abdominal bruit. Laboratory data revealed a hemoglobin values of 11.0 g/dL, blood urea nitrogen (BUN) value of 5 mg/dL, and creatine value of $2.5 mg\%$. Abdominal Angio CT showed a 10cm infrarenal abdominal aortic aneurysm with dilatation of the IVC and aortocaval fistula from the aortic aneurysm, which was confirmed at emergency surgery. When the aneurysm was opened and the thrombus was removed, a 1 cm communication was identified between the aorta and IVC. This was controlled with Foley catheters ballooning, and the fistula was closed by continuous suture placed outside the aneurysm. A bifurcated aorto-iliac graft was used to restore arterial continuity. The patient was discharged home after uncomplicated postoperative course.

• Journal of the Korean Society of Radiology
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• v.85 no.3
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• pp.668-675
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• 2024

Aortic anastomotic leak is an uncommon complication after ascending aortic replacement for acute aortic dissection. Redo-surgery is the traditional standard treatment despite high mortality and morbidity. Recently, endovascular treatment has been attempted as an alternative approach in a few case reports. Here, we present two cases of aortic anastomotic leak due to suture line dehiscence after aortic graft replacement for type A aortic dissection, which were successfully treated by coil with subsequent N-butyl cyanoacrylate embolization and an Amplatzer^TM vascular plug.

• Journal of Chest Surgery
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• v.35 no.8
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• pp.584-589
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• 2002

Background : The thoracic and thoracoabdominal aortic surgery is a complicated procedure that has various method of approach and protection. The authors have performed several methods to treat these diseases. Therefore, we attempt to analyze their results and risks. Material and Method: From June of 1992 to August of 2001, we performed 26 cases of thoracic aortic surgery and 10 cases of thoracoabdominal aortic surgery. There were 17 aortic dissections, 17 aortic aneurysms, one coarctation of aorta and one traumatic aortic aneurysm. The thoracic aortic replacement was performed under a femorofemoral bypass, an LA to femoral bypass, or a deep hypothermic circulatory arrest. The thoracoabdominal aortic replacement was performed under a femorofemoral bypass or a pump assisted rapid infusion. Result: There were 7 renal failures, 11 hepatopathies, 7 cerebral vascular accidents, 2 heart failures, 5 respiratory insufficiencies, and 2 sepsis in postoperative period. There were 9 hospital mortalities which were from 2 bleedings, 2 heart failures, 2 renal failures, a sepsis, a respiratory failure, and a cerebral infarction. There were 3 late deaths which were from ruptured distal anastomosis, cerebral infarction, and pneumonia. Conclusion: Deep hypothermic circulatory arrest was not good supportive methods for thoracic aortic replacement. Total thoracoabdominal aortic replacement was a high risk operation.

• Journal of Chest Surgery
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• v.43 no.6
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• pp.758-763
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• 2010

In current era, thoracic endovascular aortic repair (TEVAR) has gained popularity. But, it bears the risk of serious complications such as treatment failure from endoleak, retrograde aortic dissection caused by injury of aortic wall at landing zone, or aortic rupture resulting from stent graft infection. We report two cases of surgical repair of retrograde aortic dissection after TAVAR applied to acute Stanford type B aortic dissection or traumatic aortic disruption.

• Journal of the Computational Structural Engineering Institute of Korea
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• v.33 no.3
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• pp.179-186
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• 2020

In this study, the wall stress and rupture risk for abdominal aortic aneurysms were calculated based on the age and geometry of the examined abdominal aortic aneurysms. The geometry of the abdominal aorta was simulated using computed tomography data from patients with abdominal aortic aneurysms. With regard to material properties, the Gasser-Ogden-Holzapfel model was applied to the analysis to simulate the anisotropic hyperelastic characteristics of the artery. In addition, each material parameter was estimated to consider the properties for age and for normal and aneurysm tissue. Moreover, the correlation between the diameter and angle of the aortic aneurysms was analyzed based on data from patients with abdominal aortic aneurysms, and series simulations were conducted. As a result, the rupture risk for the abdominal aortic aneurysms was evaluated based on the age and geometry of the aneurysm.

• Korean Journal of Clinical Laboratory Science
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• v.52 no.4
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• pp.425-429
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• 2020

Aortic dissection refers to the separation of the aorta into a true and false lumen as the medial membrane of the aorta is torn along the long axis due to a high aortic pressure when a minute rupture occurs in the aortic lining. The mortality rate is very high, and aortic dissection occurs 2~5 times more in men than women. The prevalent age range is 50~70 years old. In this case, the authors experienced a diagnosis of aortic dissection that occurred in a young woman in her 30s, which does not occur frequently. In the process of tracking severe aortic regurgitation, aortic valve prolapse was initially suspected. We report this case because aortic dissection could be diagnosed by observing the intimal flap of the ascending aorta in the process of confirming this suspected part.