ABSTRACT
A 39-year-old man received Bentall's operation for annuloaortic ectasia in July 1985. He was admitted with a high fever in July 1998. On the 2nd day of his admission, he suddenly suffered from headache and dizziness. Head computed tomography showed multiple low density areas in the right cerebrum and cerebellum. A transesophageal echocardiogram revealed massive vegetation around the prosthetic valve. The patient underwent emergency operation using cardiopulmonary bypass. The left ventricle outflow was almost occluded by thrombi. The prosthetic valve and graft were removed completely and replaced with a 24mm Gelseal<sup>®</sup> graft and a 23mm St. Jude Medical<sup>®</sup> valve. The right coronary ostium was reimplanted directly on the prosthesis, and the left coronary ostium was reinserted using a 10mm graft. The patient's intraoperative tissues grew <i>S. aureus</i> and parenteral antibiotics were administered for 5 weeks after surgery. The patient was discharged on the 45th postoperative day and is doing well 9 months after the operation.
ABSTRACT
A 62-year-old woman was admitted for chest and back pains. She was found to have thrombosed type A aortic dissection by enhanced computed tomography. Since she had no clinical symptoms after her admission, she was discharged. Forty days after the admission, she returned with acute renal failure and ischemia of both lower extremities. Occlusion of the abdominal aorta was diagnosed and emergency axillobifemoral bypass was performed. Her renal function and the ischemia of both lower extremities improved dramatically and she was discharged 30 days after the operation. Axillobifemoral bypass is one of the most effective and least invasive operations in such cases.
ABSTRACT
An 81-year-old woman with severe chest pain was admitted to our hospital. Computed tomography showed aortic dilation and a non-enhanced crescentic area in the ascending aortic wall, indicating a DeBakey type-II aortic dissection with thrombus. The ascending aorta was replaced with an impregnated knitted Dacron graft. Fresh clotted hematoma was found in the dissected ascending aortic wall, and the intimal surface was involved with a local atherosclerotic ulcer penetrating the media. Operative findings were compatible with intramural hematoma due to penetrating atherosclerotic ulcer described by Stanson et al. In the literature most penetrating atherosclerotic ulcers are located in the descending aorta, thus this case is rare.
ABSTRACT
Between 1984 and 1994, 58 patients underwent operations for type A aortic dissection. A sutureless ringed intraluminal graft was used in 9 of the 58 cases. The patients ranged from 47 to 74 years old (mean, 60.4 years). Six patients were discharged from the hospital and three patients died. The operative mortality rate for the 9 patients was 33.3% and for the other 49 patients it was 20.4%. Post-operative aortograms revealed a remaining false lumen in 5 of the 6 discharged patients. The result of the operation with the sutureless ringed intraluminal graft was not satisfactory. Therefore, we prefer to resect and replace the dissected aorta using the prosthetic graft rather than repair with the sutureless ringed intraluminal graft.
ABSTRACT
We present a rare case of mitral stenosis with bilateral pulmonary arteriovenous fistulae (PAVF). A 55-year-old female who complained of dyspnea did not have pulmonary hypertension. She underwent successfully mitral valve replacement with an artificial valve 2 months after transcatheter coil embolization for PAVF. The combination with mitral valve replacement and transcatheter embolization is regarded as a useful procedure for mitral valve disease associated with PAVF.
ABSTRACT
A 58-year-old man was admitted with pulsatile abdominal mass with fever and dull pain. Abdominal aortic aneurysm with left hydronephrosis due to obstruction of the left ureter was diagnosed by CT scanning. Aortic valve replacement was performed ten years previously for aortic regurgitation and recently his cardiac function deteriorated. On the 5th day after admission he suddenly suffered from hemorrhagic shock with massive melena. Emergency laparotomy was performed and ruptured abdominal aortic aneurysm was observed penetrating to the sigmoid colon with perianeurysmal abscess. The abdominal aorta was excluded and closed using two-layer sutures just below the renal artery, and bilateral common iliac arteries were also closed. The aneurysmal sac and the sigmoid colon were removed as a whole, and colostomy was made according to Hartmann's procedure. Permanent right axillo-bifemoral bypass graftiny was made to avoid infectious complications of the vascular graft. A successful vascular reconstruction was done without any complication of graft infection, however he died of cardiac failure due to dilated cardiomyopathy after 4 months postoperatively. We reported a successfully treated abdominal aortic aneurysm extending to the sigmoid colon with hemorrhagic schok.
ABSTRACT
The diagnosis of ruptured dissecting limited abdominal aortic aneurysm was made in four cases. The sex ratio (M/F) was 1/3, and mean age was 63.5 years (from 53 to 78yr). Only one of these cases die due to intraoperative bleeding. Other three cases were discharged from our hospital. Intraluminal proximal anastomosis after fixed dissected aortic wall due to mattress suture and end to end anastomosis with reinforcement by Teflon felt were good results. The one case who was anastomosed simple intraluminal method has pseudoaneurysm in the proximal portion. It is important to diagnose preoperatively dissection and to make end to end anastomosis with Teflon felt.
ABSTRACT
A 27-year-old female with Marfan's syndrome underwent successful emergency surgery for rupture of an abdominal aortic aneurysm. Annulo-aortic ectasia with a saccular aneurysm of the aortic arch was revealed by angiography after the initial operation. Cabrol's operation with replacement of the aortic arch was performed. Because bleeding from the distal anastomotic portion was uncontrollable, the segment was ligated and an extra-anatomical bypass was performed from the ascending aortic graft to the bilateral femoral arteries. Intra-graft balloon pumping was carried out in the extra-anatomical bypass graft while the patient was in low cardiac output condition after the second operation. This was considered to be an effective circulatory assist procedure.
ABSTRACT
We experienced a 51-year-old male case of CABG whose graftography one month after CABG revealed a 0.5cm venous bypass graft aneurysm. Anginal pain recurred in the eighth month after CABG. Re-graftography showed enlargement of the aneurysm and stenosis of the graft at the same site. Re-CABG was carried out successfully and his postoperative course was good. Venous graft aneurysm is a comparatively rare complication, and that of the present case was considered to be most ascribable to the fragility of the graft, caused by mediastinitis secondary to the first CABG. Thrombus formation was noted in the aneurysm, with a risk of causing rupture or myocardial infarction. Therefore, such graft aneurysms should be treated by re-CABG as soon as possible after detection.
ABSTRACT
A 54-year-old man developed cardiogenic shock after acute myocardial infarction. Urgent coronary angiogram revealed complete occlusion at proximal portion of the right coronary artery and severe stenosis at just proximal site of the left anterior descending branch. Following thrombolytic therapy was not successful and he was sent to the operating room for coronary artery bypass surgery under external cardiac massage after 6hr from the onset. Three aorto-coronary bypasses were made to left anterior descending branch, first diagonal branch and right coronary artery using saphenous vein grafts by aortic cross-clamping of 67min. He fell into severe low cardiac output syndrome and could not be weaned from the cardiopulmonary bypass even by catecholamine infusions and IABP support. Veno-arterial bypass consisted of centrifugal pump and membranous artificial oxygenator was instituted. Venous blood was drained from the right atrium using percutaneous cannula via the right femoral vein and oxygenated blood was returned to the right subclavian artery. Hemodynamics recovered dramatically and after 71hr of this assisted circulation he was weaned from veno-arterial bypass. Activated coagulation time was maintained within 180-200sec. During this period, the centrifugal pump and oxygenator was not necessary to change and no clot was seen in the bypass system. He discharged from our hospital after 2 mo, postoperatively and now he is doing well as NYHA class-II 8 mo. postoperatively.
ABSTRACT
Between Nov. 1981 and Dec. 1990, seventy-seven patients underwent surgical repair for abdominal aortic aneurysm (56, non-ruptured and 21, ruptured). There were no operative and hospital deaths in the non-ruptured group and 4 deaths (19%) in the ruptured group. To improve operative results by means of decreasing hemorrhagic blood loss and operative time, we have ameliolated some points of the technical procedures as follows. Dissection of the perianeurysmal tissue was limited to only the neck and anterior peritoneal surface of the aneurysm. Taping to keep the aorta and distal iliac artery was not applied and vascular clamps were placed without dissection of the posterior walls of the aorta and distal arteries. Proximal anastomosis of the Y-vascular prostheses were performed by the inclusion technique. The end-to-side method was used in distal anastomosis to the external iliac arteries routing behind the ureter. Even when aneurysmal dilatation involved the common iliac arteries, the orifices of the common iliac arteries were closed by continuous sutures bilaterally. In ruptured cases too, this standard technique was used without application of special means for proximal cross-clamping. Postoperative arteriography or enhanced computed tomography reveald thrombosis and reduction in size of residual aneurysm of the common iliac artery. By these improved surgical techniques, 25 cases (45%) of the 56 non-ruptured group had surgical correction of the abdominal aortic aneurysm without using homologous blood transfusion. Cumulative 5-year survival rate by Kaplan-Meier method of non-ruptured and ruptured group was 87% and 49% respectively.
ABSTRACT
A 37-year-old female was admitted to our hospital because of haemoptysis. She had undergone descending thoracic aorta-abdominal aorta bypass grafting 11 years previously. Then the diagnosis was atypical coarctation due to aortitis syndrome. No follow up had been continued. Angiogram and CTscan disclosed a false aneurysm at the anastomotic site of the descending thoracic aorta, which was ruptured into the left lung. An emergency operation was performed. A new extra-anatomical ascending aorta abdominal aorta bypass was constructed using 16mm Dacron prosthesis, and three permanent clamps were employed for thromboexclusion of the descending aorta, previous bypass graft and the ruptured aneurysm. At present, three years after the operation, she is leading normal life with medication of hypotensive drugs. Pathogenesis, surgical approach and long-term postoperative care were discussed.
ABSTRACT
1) The objectives of author's present study were 42, 245 patients with ratio of males to females of 7 to 3 in 44, 327 affected locations, covering the period of 23 years from the December of 1956 to the end of March of 1979.<BR>2) All the injuries thus treated can be classified into 18, 815 (42.5%) of sprains, 11, 838 (26.7 %) of fractures, 9, 650 (21.8%) of lacerations, 2, 812 (6.4%) of contusions, 752 (1.7%) of dislocations and 460 (1.0%) of others.<BR>3) Looking from auther's statistical study of the ski injuries in the past 23 years, the development of the ski equipments have largely effected on the ski injuries.<BR>4) The lacerations on the head, face and arm are increased when the safety bindings have come into wide use. So, we expect the effect of the ski-stopper replacing the strap, in order to decrease the lacerations.<BR>5) Injuries of the ankle have been decreased because of the plastic ski boots. Especially, “the ski fractures”, or, the abducted and external rotated fractures of the lateral malleolus are decreased remarkably.<BR>6) The knee sprains, or, the ligamentous strains of medial colateral ligament of knee joint have been increased, because the stiff and high backed plastic ski boots have come into wide use.<BR>7) Fractures of the lower legs and boot top fractures have been increased, according the development of the ski boots, such as from the leather boots to buckled boots to plastic boots.