Publications by authors named "Makio Muraishi"

Article Synopsis
  • A 65-year-old man with critical limb ischemia received percutaneous deep venous arterialization (pDVA) to improve blood flow in his limbs.
  • During the procedure, a mishap occurred when the venous puncture site was unintentionally dilated, causing severe bleeding that required a stent graft to control.
  • While the patient experienced some complications post-surgery, including right shin pain and the need for extensive wound care, he eventually healed fully after about 7 months.
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Article Synopsis
  • A 72-year-old man with severe heart failure and additional complications like functional mitral regurgitation and an atrial septal defect did not improve with optimal medical therapy.
  • Following careful discussions among a heart team, cardiac resynchronization therapy was implemented as a new treatment strategy.
  • After two weeks of the procedure, the patient's heart failure symptoms improved significantly, with better cardiac function and reduced complications from the atrial septal defect.
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An 89-year-old woman was referred for closure of a patent ductus arteriosus (PDA). Contrast-computed tomography showed Krichenko type C PDA with severe calcification (Figure 1). Initial angiography revealed severe calcification of the PDA (Figure 2, Video 1), and the mid-ductus diameter was 6 mm and the ductus length was 14 mm.

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Background: Few studies have investigated the progression of baseline mild or less tricuspid regurgitation (TR) after transcatheter aortic valve replacement (TAVR). The aim of this study was to investigate the prevalence and predictors of late progression of baseline mild or less TR and the impact of late progression on outcomes after TAVR.

Methods: We reviewed 1615 patients who had baseline mild or less TR and 1-year echocardiographic follow-up registered in the Optimized Catheter Valvular Intervention-Transcatheter Aortic Valve Implantation registry.

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Purpose: A dedicated treatment strategy is not yet established for patients with no-option chronic limb-threatening ischemia. This study aimed to evaluate the clinical outcomes of percutaneous deep venous arterialization in Japanese patients with no-option chronic limb-threatening ischemia.

Materials And Methods: Data of 18 consecutive patients with chronic limb-threatening ischemia (18 limbs; mean age: 75.

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A 46-year-old pregnant woman, presented with worsening episodes of intermittent chest pain. The patient was diagnosed with a non-ST-elevation myocardial infarction. On arrival, she had a stable hemodynamic status without chest pain.

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Stent invagination (SIV) sometimes occurs during interwoven nitinol stent (IWS) placement due to its complex deployment system. It may cause stent malapposition and reduce the minimum stent area. However, the clinical implications of SIV remain unclear.

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A severely calcified lesion is the most challenging entity in endovascular therapy (EVT) for below-the-knee (BTK) arteries. In this report, we introduce a challenging plaque modification technique known as the inner PIERCE technique. A 65-year-old man on hemodialysis with multiple toe ulcerations underwent an EVT for his BTK artery diseases.

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Endovascular therapy, an established first-line treatment for isolated iliac artery (IA) occlusion (IAO), may be of limited use in challenging lesions. We describe a novel percutaneous endoluminal anatomical bypass (PEApass) technique for uncrossable external IA (EIA) occlusion. A 70-year-old man on hemodialysis with a history of colostomy presented with chronic limb-threatening ischemia due to a left EIA with below-the-knee occlusions.

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Recently, exercise-induced spastic coronary artery occlusion at the site of moderate stenosis, which Prinzmetal's angina or cardiac syndrome X does not cover, was reported. Multi-modality imaging is important for the diagnosis of coronary artery disease with a complex ischemic mechanism. However, the previous report did not include findings from intracoronary imaging at the site of moderate coronary stenosis.

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