Publications by authors named "Kokoro Yamane"

Objectives: Histologically, the mitral valve annulus comprises a collection of collagen fibres. However, the existence of collagen fibres in the tricuspid valve annulus has not been elucidated. Our goal was to clarify the histology of the tricuspid annulus.

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Objective: We aimed to assess the results of posterior leaflet augmentation with an autologous pericardial patch in atrial functional mitral regurgitation.

Methods: Data of 16 patients with atrial functional mitral regurgitation who underwent posterior leaflet patch augmentation for mitral valve repair were retrospectively analyzed. This procedure was applied to a short posterior leaflet with a height of < 10 mm in P2.

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Objectives: The morphology of the tricuspid valve (TV), particularly valves with two posterior leaflets, is attracting attention. The present study was performed to investigate the usefulness of three-dimensional transoesophageal echocardiographic data for morphological evaluation of the TV .

Methods: Sixty patients underwent morphological evaluation of the TV by preoperative transoesophageal echocardiography followed by TV repair with median sternotomy, and each leaflet was measured intraoperatively.

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Background: The frozen elephant trunk technique is useful in aortic arch repair; however, some adverse events are associated with the Frozenix J-graft. We designed a technique to prevent these adverse events and achieve easy anastomosis (Total Exclusion of the Non-Stent part of Frozenix using an Everting anastomosis [TENSE]), and we assessed the outcomes of this technique in the present study.

Methods: From April 2017 to May 2021, 44 patients with aortic arch disease underwent TENSE, in which the proximal stump of the stent part of Frozenix was matched to the distal anastomosis end between the left common carotid and left subclavian arteries.

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Objective: We investigated the effect of morphological diversity of the tricuspid valve with multiple posterior leaflets on the technical outcomes of tricuspid valve repair.

Methods: From April 2016 to November 2020, 141 patients were diagnosed with secondary tricuspid regurgitation associated with left heart disease and underwent tricuspid valve repair. We retrospectively analyzed the clinical and echocardiographic data of patients who underwent both preoperative and postoperative transthoracic echocardiography.

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Article Synopsis
  • - A 47-year-old woman was diagnosed with a serious type IIIb aortic dissection and suffered a stroke (cerebral infarction) related to her condition, with previous dilatation of the descending aorta noted at age 69.
  • - She underwent an initial endovascular repair procedure aimed at occluding the false lumen but later experienced further dilation of the aorta, driven by abnormal blood flow from the common carotid artery.
  • - A second intervention was done to occlude the proximal false lumen at the aortic arch, and a year later, imaging showed significant reduction in the size of the descending aorta, indicating successful treatment with no endoleakage.
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A 70-year-old man, diagnosed with severe mitral regurgitation and moderate tricuspid regurgitation with situs inversus totalis, was referred to our hospital. A minimally invasive approach via a minithoracotomy was performed. The mitral valve was repaired with the loop technique and ring annuloplasty.

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A 62-year-old Japanese male presented with graft infection by Staphylococcus schleiferi 50 days after debranching of the left subclavian artery and frozen elephant trunk repair for the entry closure of a Stanford type B aortic dissection. The graft was removed, and the patient was successfully treated using in situ reconstruction of the arch with omental flap coverage, removal of the debranching graft, autologous iliac artery grafting, and longterm antibiotics. Domino reconstruction of the infected debranching graft using autologous external iliac artery and a Dacron graft can thus be a good option in similar cases.

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A 48-year-old man with a pulmonary artery aneurysm was referred to our hospital. Enhanced computed tomography revealed an aneurysm extending from the main trunk to the bilateral pulmonary branch (maximum diameter 6.4 cm) of the artery.

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A 71-year-old woman with pulmonary artery aneurysm had a complication of pulmonary valve stenosis with estimated right ventricular pressure 135 mm Hg and severe aortic valve stenosis with peak pressure gradient 112 mmHg. Coronary angiography revealed stenosis of the left coronary arterial system. Because she presented with narrow pulmonary annulus (16.

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Objective: Prosthetic ring annuloplasty plays an important role in tricuspid valve repair. However, discussions regarding the appropriate suturing technique for rigid annuloplasty rings in patients with tricuspid valve anatomical variations are lacking. We aimed to clarify the diversity and pattern of tricuspid valve morphology.

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Thoracic endovascular repair (TEVAR) is a safe treatment alternative to open repair for blunt traumatic aortic injury (BTAI). A 29 year-old-female had multiple traffic injuries, including BTAI located in lesser curve of the isthmus close to the left common carotid artery with an isolated left vertebral artery. TEVAR with simple covering of the left subclavian artery was not adequate to prevent the endoleak.

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