• Journal of Chest Surgery
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• 제50권6호
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• pp.436-442
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• 2017

Background: Dissection flaps in acute type A aortic dissection typically extend into the root, most frequently into the non-coronary sinus (NCS). The weakened root can be susceptible not only to surgical trauma, but also to future dilatation because of its thinner layers. Herein, we describe a new technique that we named the "neo-adventitia" technique to strengthen the weakened aortic root. Methods: From 2012 to 2016, 27 patients with acute type A aortic dissection underwent supracommissural graft replacement using our neo-adventitia technique. After we applied biologic glue between the dissected layers, we wrapped the entire NCS and the partial left and right coronary sinuses on the outside using a rectangular Dacron tube graft that served as neo-adventitia to reinforce the dissected weakened wall. Then, fixation with subannular stitches stabilized the annulus of the NCS. Results: There were 4 cases of operative mortality, but all survivors were discharged with aortic regurgitation (AR) classified as mild or less. Follow-up echocardiograms were performed in 10 patients. Of these, 9 showed mild or less AR, and 1 had moderate AR without root dilatation. There were no significant differences in the size of the aortic annulus (p=0.57) or root (p=0.10) between before discharge and the last follow-up echocardiograms, and no reoperations on the aortic roots were required during the follow-up period. Conclusion: This technique is easy and efficient for reinforcing and stabilizing weakened roots. Furthermore, this technique may be an alternative for restoring and maintaining the geometry of the aortic root. An externally reinforced NCS could be expected to resist future dilatation.

• Journal of Chest Surgery
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• 제19권1호
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• pp.134-139
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• 1986

Seventeen patients underwent operations for aneurysm of ascending aorta with aortic regurgitation from August 1979 to October 1985. 10 patients underwent complete replacement of the ascending aorta and the aortic valve with a composite graft and implantation of coronary ostia on the graft. Seven patients underwent supracoronary noncomposite graft replacement and aortic valve replacement. The patients ranged in age from 25 to 55 years [mean 37.6 years]. There were 11 male and 6 female patients. All patients had aortic incompetence and aneurysmal dilatation of the ascending aorta. Seven of the patients has concomitant aortic dissection in ascending aorta and one had dissection in abdominal aorta. Eight patients had signs of Marfan syndrome and the other 3 patients had cystic degeneration in the medial layer of the aorta. There was one hospital death[5.8%]. He died of sepsis on the 23rd postoperative day. All survivors showed improvement in NYHA functional classification in the 34.9 patient-year follow-up period.

• Journal of Chest Surgery
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• 제31권2호
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• pp.178-181
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• 1998

급성 대동맥 해리 수술후 발생할 수 있는 합병증중 원위 대동맥류의 재발로 인한 인접 폐실질과 누공이 형성되는 것은 매우 드물어서 지금까지 소수의 증례만이 보고되고 있다. 대부분의 경우 조기 진단이 실패하여 사망한 후 부검에서 발견되며 간혹 수술장에서 발견되어 수술적 요법으로 치료되는 경우가 보고되고 있어 조기 진단과 즉각적인 수술이 이러한 합병증으로 인한 사망을 막는 유일한 길이다. 본원에서는 Debakey type I급성 대동맥 해리로 인해 상행 대동맥 대치술을 받은 뒤 5개월 후 원위대동맥과 인접 폐실질사이 누공이 발생한 환자를 조기 진단하여 수술적 치료를 함으로 좋은 결과를 얻었다.

• Journal of Chest Surgery
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• 제19권3호
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• pp.443-448
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• 1986

Aortic dissection is a serious disease that mortality does not approach to zero despite of medical and surgical improvement. Recently two cases of aortic dissection were treated with good results by the two other methods. Case 1 [57-Y-0-Male]; Chief complaint was chest pain radiating to the back. Preoperatively he was controlled by Minipress, dichlotride, & sodium nitroprusside. Aortography showed DeBakey Type III aortic dissection extending from just below the Lt. subclavian artery to the proximal portion of the origin of the renal artery. Through the midline long incision Flow reversal & Thrombo-exclusion method was used, and bypass course was proximal anastomosis at the ascending aorta - through the Rt. thoracic cavity - midportion of the diaphragm - posterior to the liver, stomach, & pancreas - distal anastomosis at the abdominal aorta proximal to its bifurcation. Bypass graft was preclotted 20 mm Dacron Woven Graft, and the aortic arch between the Lt. subclavian artery & Lt. common carotid artery was divided and meticulously sutured. Control aortogram which was done at 4th postoperative month revealed obstruction of the false lumen by thrombosis, and complications were not noticed. Case 2 [53-Y-0-Male]; Chief complaint was chest pain radiating to the abdomen. DeBakey Type III aortic dissection which was similar to the case 1 was detected by the aortography, and involvement of the Lt. subclavian & common carotid arteries was suspicious. Through the Lt. posterolateral thoracotomy the Ringed Intraluminal Sutureless Graft, No. 22 mm, was inserted from just below the Lt. common carotid artery to the midportion of the descending thoracic aorta under total circulation arrest using a F-F bypass, and the Lt. subclavian artery was ligated. Postoperatively hospital course was uneventful with antihypertensive drugs, and any specific complications were not noticed.

• Journal of Chest Surgery
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• 제31권5호
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• pp.481-487
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• 1998

하행대동맥의 급성박리에 대한 외과적 치료에 대해서는 논란이 많다. 하행대동맥의 급성 박리병변이 수술적응이 될 경우 대동맥 차단시간은 30분 이상 소요될 수 있으므로 척수손상을 예방하기 위해 대동맥 차단부위 하방에 혈류를 유지하기 위한 여러 방법이 소개되었다. 저자들은 파열(혈흉) 및 쇼크의 합병증을 동반한 하행 대동맥의 급성 박리증 8예를 체외순환법을 이용하여 수술하고 그 방법에 대한 안전성과 효용성을 찾고자 하였다. 체외순환방법에 있어서는 대동맥병변의 상하에 2개의 동맥카뉼라를 넣어 대동맥 차단으로 수술 도중 상하체의 혈류공급을 동시에 이루어지도록 하였고, 산화기로 정맥혈의 환류를 위해 우심방이나 좌대퇴정맥에 정맥관을 삽입하였다. 비교적 장시간의 대동맥 차단에도 불구하고 수술후 8예 모두에서 척수손상은 없었다. 2예(25%)의 병원사망(각각 술후 31일과 41일)은 비교적 고령에서 지연성 합병증인 폐농양, 호흡부전증 등에 의해 발생했다. 주위조직의 부종 및 연약함 때문에 수술시간이 연장될 수 있는 급성 하행동맥 박리증에서 체외 순환방법하의 인공혈관 대치술은 대동맥 차단시간의 연장에 의한 척수 허혈손상을 피할 수 있는 안전하고 효과적인 외과적 치료방법이 될 수 있을 것으로 사료된다.

• Journal of Chest Surgery
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• 제49권4호
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• pp.264-272
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• 2016

Background: We analyzed the long-term results of ascending aortic replacement and arch aortic replacement in acute DeBakey type I aortic dissections to measure the differences in the distal aortic changes with extension of the aortic replacement. Methods: We reviewed 142 cases of acute DeBakey type I aortic dissections (1996-2015). Seventy percent of the cases were ascending aortic replacements, and 3 0% of the cases underwent total arch aortic replacement, which includes the aorta from the root to the beginning of the descending aorta with the 3 arch branches. Fourteen percent (20 cases) resulted in surgical mortality and 86% of cases that survived had a mean follow-up period of $6.6{\pm}4.6years$. Among these cases, 64% of the patients were followed up with computed tomography (CT) angiograms with the duration of the final CT check period of $4.9{\pm}2.9years$. Results: There were 15 cases of reoperation in 13 patients. Of these 15 cases, 13 cases were in the ascending aortic replacement group and 2 cases were in the total arch aortic replacement group. Late mortality occurred in 13 cases; 10 cases were in the ascending aortic replacement group and 3 cases were in the total arch aortic replacement group. Eight patients died of a distal aortic problem in the ascending aortic replacement group, and 1 patient died of distal aortic rupture in the total arch aortic replacement group. The follow-up CT angiogram showed that 69.8% of the ascending aortic replacement group and 35.7% of the total arch aortic replacement group developed distal aortic dilatation (p=0.0022). Conclusion: The total arch aortic replacement procedure developed fewer distal remnant aortic problems from dilatation than the ascending aortic replacement procedure in acute type I aortic dissections.

• Journal of Chest Surgery
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• 제44권6호
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• pp.427-431
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• 2011

Successful thoracic endovascular repair for complicated Stanford type B acute aortic dissection in two patients is herein reported. The true lumen flow was immediately restored following stent graft deployment in the descending thoracic aorta with subsequent resolution of the distal malperfusion syndrome. One patient is doing well more than 15 months after surgery and another patient who was treated more recently is also doing well 7 months postoperatively.

• Journal of Trauma and Injury
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• 제30권4호
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• pp.206-211
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• 2017

Aortic dissection caused by blunt trauma is a rare injury that can be complicated by malperfusion syndrome resulting from obstruction of branch vessels of the aorta. Here, we present a case of traumatic type B aortic dissection with right renal and small bowel ischemia, successfully managed by endovascular fenestration.

• Journal of Chest Surgery
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• 제31권7호
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• pp.722-724
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• 1998

대동맥수술 후 발생하는 종격동염은 혈관이식편의 감염이 필연적으로 동반되므로 그 치료가 용이하지 않은 것으로 알려져 있다. 저자들은 최근 급성 대동맥 박리증으로 상행대동맥 및 대동맥궁 일부를 인공혈관으로 대체 후 발생한 급성 종격동염 환자 1례에서, 감염된 인공혈관을 제거하지 않고 대망편의 이동을 통하여 치료하여 만족스러운 결과를 얻었기에 문헌고찰과 함께 보고하고자 한다.

• Journal of Chest Surgery
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• 제30권3호
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• pp.336-339
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• 1997

최근 흉부 대동맥의 수술적 치료가 과거에 비해 좋은 성적을 얻고 있다. 전 흉부 대동맥을 포함하는 대동맥류나 대동맥 박리증의 경우대개 두단계나세단계로나누어 수술하였다. 본원에서는 숲 대동맥을 포함한 드베키 타입 I 만성 대동맥 박리증 환자에 있어서 한번에 출 대동맥을 치환하는 수술을 시행하였다. 환자는 호흡 부전과 Marfan 환자의 특징적 외모를 갖고있는 25세 남자로 심한 대동맥 부전증과 만성 드베키 타입 I대동맥 박리증 진단하에 수술시행하였다. 수술소견상상행 대동맥이 매우 커져 있었으며 상행대동맥에 두 개의 내막 파열이 관찰되 었고 가혈관으로 부터 늑간 동맥들과 우측 신동맥이 혈공급을 받고있었다. 벤탈 술식과 함께 술 대동맥 치환술을 성공적으로 시행하였으며, 환자는 현재까지 큰 합병증없이 외래를 통해 추적 관찰중이다.