Publications by authors named "Fumi Yokohama"

Article Synopsis
  • The study examines the long-term outcomes of patients with congenitally corrected transposition of the great arteries who underwent different surgical methods, specifically a double switch operation versus an atrial switch with Rastelli operation, over an average follow-up of 12.7 years.
  • Despite a 10% death rate both early and late, survival rates at 10 and 20 years were 86% and 71% respectively, with no significant differences in survival between the two surgical groups.
  • Complications like heart failure and arrhythmias were comparable across groups, but the Rastelli-Senning/Mustard group faced a higher risk of reoperation, and some patients in both groups experienced significant aortic regurgitation.
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  • * A review of 95 patients revealed that higher AVC scores and volumes were associated with increased severity of concomitant AR, with significant differences observed across the groups (no AR, mild AR, moderate AR).
  • * The findings suggest that AVC severity is correlated with the degree of AR in patients with severe AS, indicating that AVC may contribute to the worsening of AR and overall disease condition.
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Left atrial appendage (LAA) size is crucial for determining the indication of transcatheter LAA closure. The aim of this study was to evaluate the differences in LAA morphology according to the types of atrial fibrillation (AF). A total of 299 patients (mean age: 67 ± 13 years) who underwent transesophageal echocardiography (TEE) were included.

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  • - The 86th Annual Scientific Meeting of the Japanese Circulation Society took place online from March 11-13, 2022, in collaboration with the Asian Pacific Society of Cardiology Congress 2022.
  • - The main theme was "Cardiology Spreading its Wings," highlighting the growing challenges in cardiovascular health, particularly the rise in heart failure and other diseases.
  • - Over 14,900 participants attended, making the event a resounding success, with ample appreciation for the cooperation and support from everyone involved.
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  • Transcatheter closure of patent foramen ovale (PFO) helps prevent cryptogenic stroke (CS), making it important to identify high-risk PFOs associated with CS.
  • A study analyzed 137 patients to evaluate the significance of direct right-to-left (RL) shunt through PFO, finding that quicker crossing of microbubbles in patients with CS indicated higher risk.
  • Results showed that direct RL shunt was present in 77% of CS patients compared to 29% of non-CS patients, suggesting it could be a critical factor in identifying high-risk PFOs.
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Article Synopsis
  • Transcatheter closure of patent foramen ovale (PFO) is an effective method for preventing recurrent strokes in certain patients, particularly those with cryptogenic stroke (CS).
  • This study evaluated the effectiveness of saline contrast transthoracic echocardiography (TTE) in identifying large right-to-left (RL) shunts compared to transesophageal echocardiography (TEE) in patients with confirmed PFO.
  • Results showed that TTE identified large RL shunts more frequently than TEE, with higher sensitivity and accuracy, highlighting the importance of using TTE to assess shunt severity before considering device closure.
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Takeuchi repair is a unique surgical approach in anomalous left coronary artery from the pulmonary artery. We present an adult patient with anomalous left coronary artery from the pulmonary artery with multiple late structural complications after Takeuchi repair who was evaluated using multimodality imaging, including newly developed cardiac fusion imaging with computed tomography and echocardiography. ().

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Background: Noninvasive assessment of stenotic lesions in patients with complex adult congenital heart disease (ACHD) is challenging due to its complex morphology. The simultaneous two-screen display of multidetector-computed tomography (MDCT) and real-time echogram (STDME) technology can display a virtual multi-planar reconstruction from MDCT corresponding to the same cross-sectional image from transthoracic echocardiography (TTE). We investigated the usefulness of the STDME technology for stenosis severity assessment in complex ACHD patients.

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Surgical restoration of subvalvular geometry is very important to prevent recurrence of ischemic/functional mitral regurgitation. We evaluated an approach to the radical repair of left ventricular (LV) remodeling for three different cases with responsible coronary lesions. Leaflet tethering was corrected by tugging of the papillary-ventricular complex, which consists of the base of papillary muscles and posterior LV wall.

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Objective: Although blood pressure (BP) is a major determinant of arterial stiffness, whether high pulse wave velocity (PWV) adversely influences cardiac parameters and cardiovascular (CV) outcome in patients without high BP remains unclear.

Methods: Outpatients without high BP (n=320), defined as systolic BP ≥140 mm Hg, were enrolled in this retrospective study. At baseline, all patients underwent echocardiography and multidetector CT to determine the coronary artery calcification (CAC) score.

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A 76-year-old man taking theophylline was admitted to our hospital with congestive heart failure and supraventricular tachycardia (SVT). After admission, he developed cardiogenic shock as a result of SVT storm, which was refractory to medical treatment including adenosine and electrical cardioversion. The serum theophylline concentration at admission was identified as toxic.

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Background: Early initiation of EPA treatment in combination with a statin within 24h after percutaneous coronary intervention (PCI) in patients with acute myocardial infarction (MI) reduces inflammation and ventricular arrhythmia compared with statin monotherapy; however, the impact of early initiation of EPA treatment on cardiovascular events is unclear. We determined whether early eicosapentaenoic acid (EPA) treatment in patients with acute coronary syndrome (ACS) reduces adverse cardiovascular events.

Methods: This prospective, open-label, blind end point-randomized trial consisted of 241 patients with ACS.

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