Publications by authors named "Isao Tabuchi"
A 46-year-old man with a history of bronchial asthma and chronic sinusitis presented to our hospital with chest pain. We suspected angina evoked by epicardial coronary spasm and performed an ergonovine provocation test to diagnose coronary spastic angina (CSA). The patient also met the diagnostic criteria for eosinophilic granulomatosis with polyangiitis (EGPA) and was treated with 60 mg prednisolone (PSL) for EGPA-associated CSA.
View Article and Find Full Text PDFBalloon pulmonary angioplasty (BPA) is now a treatment option for patients with inoperable chronic thromboembolic pulmonary hypertension (CTEPH). However, the incidence of restenosis and long-term changes in vessel diameters in pulmonary arteries after BPA are unknown. The present study investigated the incidence of restenosis by measuring changes in vessel diameter after BPA.
View Article and Find Full Text PDFBackground: Pulmonary injury is a major complication of balloon pulmonary angioplasty (BPA) for chronic thromboembolic pulmonary hypertension (CTEPH). Lung injury after BPA can be exacerbated by a high mean pulmonary arterial pressure (PAP). Although oxygen inhalation is expected to lower mean PAP in patients with CTEPH, no relevant investigation has been conducted.
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- This study examined the myocardial strain differences in patients with aortic stenosis (AS) who have normal left ventricular ejection fraction (LVEF) using advanced echocardiography techniques.
- Researchers analyzed strain patterns in subendocardial and subepicardial layers of the heart in both control subjects and AS patients, focusing on various strain types (radial, circumferential, and longitudinal).
- Results showed that while circumferential and epicardial radial strains were similar between groups, patients with AS exhibited significantly lower longitudinal and endocardial radial strains, indicating impaired myocardial function despite normal LVEF.
Background: The accuracy of two-dimensional transesophageal echocardiography (2D-TEE) for the measurement of aortic valve area (AVA) in patients with aortic stenosis (AS) depends upon the cross-section selected for imaging. Real-time three-dimensional transesophageal echocardiography (3D-TEE) may overcome this limitation of 2D-TEE. The goal of this study was to compare 3D-TEE with 2D-TEE for the measurement of AVA.
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