Publications by authors named "Shigeki Nishiyama"
Article Synopsis
- - The report details complications related to the placement of an Impella CP ventricular assist device in a patient who had a Perceval bioprosthetic valve.
- - The Impella device became stuck to the sutureless valve, complicating the procedure.
- - Ultimately, the device had to be removed while the patient was on cardiopulmonary bypass to ensure safety.
Article Synopsis
- This study evaluated the effectiveness of adenosine stress computed tomography myocardial perfusion (CTP) compared to single-photon emission computed tomography (SPECT) in detecting significant coronary artery disease (CAD), using fractional flow reserve (FFR) as a benchmark.
- 93 coronary arteries from 31 patients with at least 50% stenosis were analyzed with both CTP and SPECT, followed by invasive procedures.
- The results showed that CTP significantly outperformed SPECT, particularly in sensitivity and positive predictive value, making it a valuable noninvasive tool for diagnosing functionally significant CAD.
A 29-year-old female patient presented with shock and dyspnea due to heart failure and pulmonary edema. Echocardiography indicated excessive contraction limited to the left ventricular apex and akinesis of the basal and middle ventricle, which were confirmed by emergency left ventriculography. The finding was diagnostic of inverted Takotsubo cardiomyopathy.
View Article and Find Full Text PDFWe have established a cell line derived from a pleural effusion of breast scirrhous carcinoma. This cell line presented immunohistochemically negative for estrogen receptor and slightly positive for progesterone receptor, and positive for c-erbB/HER2/neu. However the original tumor was found to be positive for estrogen receptor and progesterone receptor and slightly positive for c-erbB/HER2/neu expression.
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