ABSTRACT
Acute ischemia due to thromboembolism caused by occluded prosthetic graft after axillary-femoral artery bypass has been reported as axillofemoral bypass graft stump syndrome (AxSS). AxSS usually occurs in the upper extremities and it is rare that it occurs in the lower extremities. We encountered a rare case of a 76-year-old woman with acute right upper and lower extremities ischemia 4 years after right axillary-external iliac artery bypass grafting. The graft and the native arteries of the right upper and lower limbs were occluded. In addition, the right axillary artery and proximal anastomotic site were deformed. We diagnosed acute limb ischemia due to AxSS and immediately performed thrombectomy. Because we considered the thrombosis to originate from the axillary-iliac artery bypass graft, we disconnected the occluded graft from the native arteries. Six months after surgery, she was doing well without recurrence of thromboembolism. We report here the successful treatment of a case of AxSS that developed in both the upper and lower extremities.
ABSTRACT
<p>We herein report on a case in which we conducted bypass surgery for occlusion of a left axillary artery aneurysm with ischemic symptoms 21 years after the contraction of Kawasaki disease and achieved symptomatic improvement. The case involved a 22-year-old man who had been suffering from Kawasaki disease since the age of one. He had been undergoing antiplatelet therapy for bilateral axillary artery aneurysms by orally taking aspirin for 20 years. He suffered from symptoms of upper limb ischemia 21 years after receiving a diagnosis of peripheral aneurysms and occlusion of a left axillary artery aneurysm upon 3DCTA. We conducted aneurysmotomy, plication, and bypass surgery between the axillary and brachial arteries via the autologous vein. Pathological examination revealed due to the formation of atheroma in the tunica intima and disarrangement of the layer structure in the tunica media : thickening of the tunica media was partially observed. His fatigue upon exertion of his left upper extremity remarkably improved following surgery. Although peripheral aneurysms associated with Kawasaki disease are rare, as seen in this case, peripheral arterial disease remains and progresses even after long periods of time. It is believed necessary to carry out long term follow-up and examine the approaches to therapy including surgery in accordance with the site and degree of the disease.</p>
ABSTRACT
<p>We report a case of chronic mesenteric ischemia associated with severe aortic valve regurgitation and stenosis (ASR). The patient was a 76-year-old man who had been given a diagnosis of ASR in his 40s. He gradually developed heart failure and chronic kidney disorder due to deterioration of ASR. He had started hemodialysis 1 year before admission and had complained of abdominal pain after meals and weight loss during that period. He was admitted to the Department of Cardiology in our hospital for evaluation of ASR. Severe ASR with low output syndrome (C. I. 2.00 L/min/m<sup>2</sup>) were confirmed by cardiac catheter examination. In addition, abdominal angiography revealed total occlusion of the superior mesenteric artery (SMA) and severe stenosis of the celiac artery (CA). We considered that low cardiac output due to severe ASR had exacerbated the mesenteric ischemia. We performed AVR and abdominal aorta-SMA bypass at the same time to prevent acute mesenteric ischemia in the perioperative period. The combination of valvular disease and CMI is very rare. This is the first report in Japan of simultaneous valve replacement and mesenteric artery revascularization.</p>
ABSTRACT
<p>A 60 year old man presented with a history of right leg claudication which occurred after walking a distance of 200 m. He had no history of cardiovascular risk factors or trauma in the lower extremities. Palpation disclosed no right popliteal or pedal pulse. Ankle-brachial pressure index (ABI) was 0.60 on the affected side. Computed tomography (CT) demonstrated the presence of a highly stenotic lesion in the right popliteal artery due to compression from periarterial polycystic masses. Magnetic resonance imaging (MRI) revealed no communication to the knee joint bursa. Further, angiography showed a beak-like severe stenosis on the knee of the right popliteal artery. Based on the results of these three imaging techniques we confirmed the diagnosis of cystic adventitial disease (CAD). The patient underwent a surgical exploration of his popliteal artery through a posterior approach. Evacuation of all cysts by longitudinal incision of his adventitia yielded yellow mucoid gelatinous material. The popliteal artery was replaced using the great saphenous vein because the previous imaging showed thrombus formation at the cyst site. He had an uneventful postoperative recovery with ABI of 1.10.</p>
ABSTRACT
<p>We report two cases of extended sandwich patch technique through right ventriculotomy for ventricular septal perforation (VSP). One was an 82-year-old woman. Preoperative coronary angiography showed occlusion of the left anterior descending artery proximal to the first major septal branch. Operative inspection revealed relatively extensive infarction of the anterior wall, a part of which had the appearance of free wall rupture. In the other case of an 85-year-old woman, the culprit lesion was occlusion of the left anterior descending artery distal to several septal branches and to the first diagonal branch. Despite their old age and emergency surgery in cardiogenic shock status, their postoperative recovery was uneventful. In the former case, however, echocardiography at the early postoperative phase revealed significant expansion and thinning of the infarcted anterior wall. Furthermore, serial observations showed deterioration of the left ventricular systolic function and mitral regurgitation due to leaflet tethering. In addition to secure VSP closure by transmural stitches, extended sandwich patch technique can offer geometric and functional preservation of postinfarction left ventricle. Although this can eliminate the risk of postoperative low output syndrome even if anterior infarction is extensive, late follow-up will be required because this technique can also allow postinfarction left ventricular remodeling.</p>
ABSTRACT
<p>A 23-year-old woman with mitral valve infective endocarditis complicated by embolism of the right common iliac artery underwent transfemoral embolectomy by a Fogarty catheter and mitral valve replacement. She developed occlusion of the right internal iliac artery, that was revealed by computed tomography on the 9th postoperative day. The occlusion was considered to result from migration of a part of the emboli from the right common iliac artery into the right internal iliac artery during the procedure of embolectomy. On the 16th postoperative day, she underwent repeat mitral valve replacement because of perivalvular leakage. Furthermore, after 2 weeks from the diagnosis of embolism of the right internal iliac artery, the embolic site showed aneurysmal formation finally requiring aneurysmectomy. Her recovery was uneventful. Our case is considered to be rare in that serial observations on computed tomography indicated the development of mycotic aneurysm at the site of septic embolism. In addition, care must be taken to prevent migration of emboli into branched arteries during the procedure of embolectomy for peripheral arterial septic embolism caused by infective endocarditis.</p>