1.A Large Pseudoaneurysm of the Aortic Arch due to Penetrating Atherosclerotic Ulcer
Toshiharu Yamagishi ; Kazuhiro Sakata
Japanese Journal of Cardiovascular Surgery 2008;37(6):364-367
A 72-year-old man underwent hemiarch replacement of the distal aortic arch with hypothermia and selective cerebral perfusion because of a large pseudoaneurysm of the aortic arch. Histological examination revealed a penetrating atherosclerotic ulcer had caused aortic perforation and resultant pseudoaneurysm formation.
2.Arteriomegaly with Multiple Aneurysms
Toshiharu Yamagishi ; Kazuhiro Sakata
Japanese Journal of Cardiovascular Surgery 2011;40(6):290-293
We report a rare case of surgical treatment of arteriomegaly with multiple aneurysms. The patient was a 76-year-old man who was suffering from swelling, pain, and numbness of his left lower extremity. Three-dimensional computed tomography (3D-CT) revealed arteriomegaly from the left external iliac artery to the popliteal artery with ruptured superior gluteal arterial aneurysm and superficial femoral aneurysm, and with unruptured external iliac aneurysm and popliteal aneurysm. We performed left external iliac artery—posterior tibial artery bypass, exclusion of superior gluteal aneurysm, and resection of three other aneurysms. Because of arteriomegaly, back flow from the dilated arterial branches was considerable, and the femoral artery was expanded with tension despite of distal and proxymal clamp. We therefore divided the femoral artery to avoid development of a aneurysm. The postoperative course was uneventful and 3D-CT showed good bypass flow and thrombotic occlusion of the residual femoral artery.
3.A Case Report of Type A Acute Dissection of the Aorta Superimposed on Pre-Existing Post-Stenotic Dilatation.
Yoshio MISAWA ; Tsuguo HASEGAWA ; Kazuhiro SAKATA ; Morito KATO ; Kanae FUKUSHIMA
Japanese Journal of Cardiovascular Surgery 1992;21(2):191-194
Fifty-two year-old woman was operated for type A acute dissection of the aorta superimposed on pre-existing post-stenotic dilatation dut to congenital aortic valve stenosis. The left main coronary artery was discontinued by dissection. Aortic valve replacement, replacement of ascending aorta by woven-Dacron graft and saphenous vein graft between the left anterior discending artery and the prosthetic graft. Compression gauze around the site of the anastomoses and the prosthetic graft was useful to control of intractable bleeding. The gauze could be extracted twenty-eight hours after the operation by platelet and plasma transfusion. She was well eleven months after the operation.
4.Coronary Aneurysms in an Elderly Man Presumed to Be due to Childhood Kawasaki Disease
Hiroaki Osada ; Yoshiaki Saji ; Akira Marui ; Kazuhiro Yamazaki ; Takeshi Nishina ; Kenji Minakata ; Tadashi Ikeda ; Ryuzo Sakata
Japanese Journal of Cardiovascular Surgery 2010;39(4):203-205
A 60-year-old man was admitted to our institution with abnormal ECG findings. Coronary CT and angiography showed coronary aneurysms from the left main trunk to the bifurcation of the left anterior descending artery, and the left circumflex artery, with severe stenosis and complete obstruction of the proximal right coronary artery. Morphological evaluation findings strongly suggested that the coronary aneurysms were highly related to childhood Kawasaki disease. We successfully performed triple vessel coronary artery bypass grafting. Here, we report a very rare case of coronary aneurysms presumed to be due to childhood Kawasaki disease in an elderly man.
5.Surgical Management of Perimembranous or Infundibular-isolated Ventricular Septal Defect Associated with Prolapse of Aortic Cusp or Aortic Regurgitation.
Susumu ISHIKAWA ; Tetsuo IIJIMA ; Kazuhiro SAKATA ; Yoshimi OOTANI ; Hideaki ICHIKAWA ; Tooru TAKAHASHI ; Tetsuo ANZAI ; Yasuo MORISHITA
Japanese Journal of Cardiovascular Surgery 1992;21(1):49-53
Out of 104 patients with perimembranous or infundibular-isolated ventricular septal defect (VSD), causative factors of Prol and AR, and the operative indication were studied in 17 with prolapse of the aortic cusp (Prol) and 10 with aortic valve regurgitation (AR). The left to right shunt ratio and the size of VSD were smaller in patients with Prol or AR than in those with the normal aortic cusp, suggesting that hemodynamics might take part in the cause of Prol or AR. Twenty-two patients underwent VSD closure only, four valvuloplasty and one aortic valve replacement. Residual AR was occurred in three out of ten patients. After surgery, AR was disappeared in six out of seven patients with the first grade preoperative AR, but AR remained in all two patients with the second grade preoperative AR. Careful preoperative observation and early operation before the appearance of AR are the important factors for avoiding residual regurgitation after aortic valvuloplasty.
6.A Case of Coronary Ostial Stenosis with Aortic Regurgitation Due to Syphilitic Aortitis.
Yasushi Sato ; Susumu Ishikawa ; Akio Ohtaki ; Kazuhiro Sakata ; Yoshimi Otani ; Toru Takahashi ; Ichiro Yoshida ; Yasuo Morishita
Japanese Journal of Cardiovascular Surgery 1995;24(3):175-177
A 50-year-old man was diagnosed as having aortic valve insufficiency, complete occlusion of the right coronary artery and 75% stenosis of the left main trunk due to syphilitic aortitis. Aortic valve replacement and coronary artery bypass grafting to three vessels were successfully performed. The selection of surgical procedures for the coronary lesion with syphilitic aortitis should be made carefully, since the progression of aortic root inflammation in the acute phase and the development of atherosclerotic changes are not preventable in the future. It is most important to select effective and safe surgical interventions, especially for patients with such a low cardiac function as our patient.
7.Total Aortic Arch Replacement in a Patient with a Patent Right Internal Thoracic Artery Graft Crossing between the Sternum and the Ascending Aortic Aneurysm
Shigeki Koizumi ; Kenji Minakata ; Hisashi Sakaguchi ; Kentaro Watanabe ; Tomohiro Nakata ; Kazuhiro Yamasaki ; Tadashi Ikeda ; Ryuzo Sakata
Japanese Journal of Cardiovascular Surgery 2016;45(3):144-147
We report a case of 76 year-old woman who had previously undergone coronary artery bypass grafting (CABG) with the right internal thoracic artery (RITA) bypassed to the left anterior descending artery. Six years after CABG, she developed acute type A aortic dissection, and she was medically treated because the false lumen was thrombosed and it was considered that surgical intervention would be high risk for the patent RITA graft crossing between the sternum and the ascending aorta. During follow-up, her aortic aneurysm enlarged to 57 mm in diameter, and finally she was referred to our hospital for surgical intervention. In this case, preservation of the patent RITA graft was thought to be critical because the RITA graft was the only blood source for the left anterior descending artery. Prior to re-median sternotomy, we performed a right anterior minithoracotomy to make sufficient space between the sternum and the RITA graft, and then instituted peripheral cardiopulmonary bypass to decompress the heart. After re-sternotomy, we ensured minimum dissection of the RITA graft, and we successfully accomplished graft replacement of the ascending aorta to the aortic arch without injuring the patent RITA graft. In cases with a patent RITA graft and an ascending aortic aneurysm close to the sternum, our strategy is considered to be efficient for re-median sternotomy.
8.Aortic and Mitral Valve Replacements in a Patient with Extensive Calcification of Intervalvular Fibrous Body
Masaki Funamoto ; Kenji Minakata ; Kazuhiro Yamazaki ; Senri Miwa ; Akira Marui ; Hiroyuki Muranaka ; Fumie Takai ; Motonori Kumagai ; Takahiro Nakahara ; Ryuzo Sakata
Japanese Journal of Cardiovascular Surgery 2012;41(6):308-311
Extensive calcification of the mitral annulus presents a formidable technical challenge to surgeons and increases the risk of serious complications such as intractable hemorrhage, atrioventricular disruption, and ventricular rupture during mitral valve surgery. We present a case of aortic and mitral valve replacements for a patient with extensive calcification of an intervalvular fibrous body. A 76-year-old woman was admitted with dyspnea on effort, leg edema and syncope. Transthoracic echocardiography showed severe aortic stenosis, and mitral stenosis with regurgitation, and extensive mitral annular calcification. Decalcification was performed with CUSA and we selected a trans-aortic-valve approach for decalcification of the intervalvular fibrous body. The calcification was left to a certain extent in order to preserve annular strength. Postoperative echocardiography showed no perivalvular leakage from either prostheses. The patient was transferred to a local hospital for further rehabilitation.
9.Arterial Reconstruction for Aorto-Iliac Obstructive Disease.
Susumu ISHIKAWA ; Yoshimi OOTANI ; Hajime YANAGISAWA ; Akio OOTAKI ; Kazuhiro SAKATA ; Tooru TAKAHASHI ; Hideaki ICHIKAWA ; Yasushi SATO ; Masahiro AIZAKI ; Yasuo MORISHITA
Japanese Journal of Cardiovascular Surgery 1993;22(2):73-76
Surgical interventions for aorto-iliac obstructive diseases were studied through the operative results. Eighteen patients underwent aorto-femeral bypass (AOF) and 23 who were over 70 years of age or who had serious preoperative complications had axillofemoral bypass (AXF). No perioperative death occurred in AOF patients, while the mortality rate of AXF patients was 8%. Postoperative ankle pressure indexes were significantly higher in AOF patients than in AXF patients. Follow-up graft patency rate was 100% in AOF patients at 54 months (mean), and 85% in AXF patients at 44 months respectively. AOF should be the first choice for patients with aorto-iliac obstructive disease, and AXF is suitable only for high-risk patients.
10.Intraoperative Autotransfusion during Abdominal Aortic Aneurysm Repair.
Susumu Ishikawa ; Masahiro Aizaki ; Akio Otaki ; Hajime Yanagisawa ; Yoshimi Otani ; Kazuhiro Sakata ; Toru Takahashi ; Yasushi Sato ; Ichiro Yoshida ; Yasuo Morishita
Japanese Journal of Cardiovascular Surgery 1994;23(1):11-14
In a consecutive series of abdominal aortic aneurysm repairs, a non-washing autotransfusion unit system was used in 47 patients, and was not used in 25. In the 47 patients treated with the autotransfusion unit, the average amount of autotransfused blood was 1, 109±131ml in elective cases. The amount of banked blood transfusion was significantly smaller in autotransfused patients (mean; 712ml), compared to non-autotransfused patients (mean; 1, 405ml). Postoperative levels of serum bilirubin were higher in patients with greater autotransfused blood volumes than those with smaller volumes. The combination of preoperative autologous blood donation (2-3 units) and intraoperative autotransfusion is necessary to perform abdominal aortic aneurysm repair without homologous blood transfusion.