Publications by authors named "Hiroyuki Johno"

Cardiac lipomas are extremely rare benign neoplasms of the heart. Most of them do not cause clinical symptoms, so far they are found incidentally in the majority of cases. Here, we describe a case of left intraventricular lipoma in an asymptomatic 34-year-old man which found by transthoracic echocardiography at comprehensive medical examination.

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We describe the case of an 89-year-old female with a distal anastomotic pseudoaneurysm of the ascending aorta after an ascending aorta replacement for an acute type A aortic dissection. Initially, we attempted endovascular repair using a semi-custom-made thoracic fenestrated stent graft. However, this treatment failed due to an endoleak.

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The best treatment for a right-sided aortic arch (RAA) and Kommerell diverticulum (KD) has not been determined due to the rarity of these conditions. The current trend in the treatment of this disease is to increase the endovascular approach without a sternotomy. We describe a rare condition with an association of an RAA with a KD of an aberrant left subclavian artery and an anomalous right vertebral artery originating from the aortic arch (AVA).

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Article Synopsis
  • * A patient with these conditions was treated successfully using an off-pump coronary artery bypass alongside an aorto-left CCA bypass.
  • * This treatment method reduces the risk of strokes during surgery and offers a better blood flow pattern compared to more conventional techniques.
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Multiple arterial aneurysms are often seen in the elderly and are caused mainly by atherosclerosis.

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Background: A right sided aortic arch (RAA) and an aortic diverticulum (AD) are a rare congenital anomaly associated with an aortic rupture and dissection. Recently, various methods for the surgical management have been described to treat RAAs and ADs.

Case Report: We describe a case of an RAA with a mirror image branching (RAMI) and AD in a teenager who complained of chest pain.

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Background: A Kommerell diverticulum (KD) and aberrant subclavian artery (ASA) are an aortic vascular anomaly.

Case Report: We describe a case of a KD with a right ASA and two asymptomatic thoracic saccular aortic aneurysms in an 83-year-old man, which were treated with a total arch replacement, frozen elephant trunk technique, and staged thoracic endovascular aortic repair.

Conclusions: Some reports on the treatment of a KD and ASA have been reported thus far in the literature.

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We describe the case of a 75-year-old male with pyoderma gangrenosum (PG) who had severe aortic insufficiency and moderate mitral regurgitation. He had been taking minocycline for 15 years to treat PG. He underwent aortic valve replacement and mitral valve repair.

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The occurrence of infective aortic pseudoaneurysms tends to be intractable and difficult to treat. We experienced a very rare case of a recurrent infective pseudoaneurysm in the ascending aorta that occurred after cardiac surgery in an atomic bomb survivor with myelodysplastic syndrome. The pseudoaneurysm was successfully repaired using a femoral artery autograft with an omentopexy and the patient recovered well without any recurrence.

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Objective: The purpose of this study was to investigate (1) the early and midterm patency rates in saphenous vein grafts that were anastomosed with the Symmetry Aortic Connector System (St Jude Medical, Inc, St Paul, Minn) and (2) risk factors for graft occlusion.

Methods: Thirty-one patients underwent off-pump coronary artery bypass grafting for proximal saphenous vein graft anastomoses with the aortic connector system. Intraoperative graft flow was studied with transit time flowmetry, and angiography was performed before discharge in 29 cases.

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The early results of coronary artery grafting with an aortic connector system were assessed in Japanese patients. From May 2002 through April 2003, 24 consecutive patients underwent off-pump coronary artery bypass using an aortic connector system. Another patient was excluded because the saphenous vein was insufficient for the smallest available aortic connector system.

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Venous aneurysms are a rare clinical entity, especially in upper extremities. A 35-year-old Japanese woman was diagnosed as having venous aneurysms in her left arm. The lesions were excised, and microscopic examination revealed a lack of smooth muscle, media, and elastic fibers in the aneurysmal wall, with partial hyperplasia of smooth muscle.

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