Publications by authors named "Miyaji Kyakuno"
Article Synopsis
- Solid organ transplant (SOT) recipients show poor antibody production against SARS-CoV-2 post-vaccination, raising concerns about their immune responses.
- A study involving 614 SOT recipients vaccinated with mRNA vaccines revealed an overall seropositivity rate of 43% one month after the second dose, increasing to 70% by six months.
- Kidney, lung, and simultaneous pancreas-kidney transplant recipients had lower antibody levels at 3 and 6 months compared to other organ types, indicating slower antibody acquisition relative to the general population.
A 64-year-old man with nephrotic syndrome was admitted to another hospital where his renal biopsy revealed membranoproliferative glomerulonephritis (MPGN) with monoclonal immunoglobulin (Ig) G, subclass 1, κ light chain (IgG1κ) deposition on immunofluorescence (IF). Proliferative glomerulonephritis with monoclonal IgG deposits (PGNMID) was suspected due to monoclonal IgG1κ deposits and the absence of hematological abnormalities. However, the typical PGNMID phenotype was not observed by electron microscopy.
View Article and Find Full Text PDFBackground: Recently, chronic hepatitis E has been reported in solid organ transplant (SOT) recipients in European countries. Previously, we clarified the prevalence of hepatitis E virus (HEV) infection in Japanese liver transplant recipients and identified 2 chronic hepatitis E patients infected by blood transfusion. However, the rate of HEV infection in recipients of SOTs other than liver in Japan remains unclear, so we conducted a nationwide survey to clarify the prevalence of chronic HEV infection in Japanese heart and kidney transplant recipients.
View Article and Find Full Text PDFPurpose: We assessed the diagnostic value of whole body magnetic resonance (MR) imaging (WB-MRI) using diffusion-weighted images (DWI) for detecting bone metastasis and compared it with that of skeletal scintigraphy (SS).
Materials And Methods: Thirty patients with malignancies (breast cancer, 17 patients; prostate cancer, 9; and one patient each, thyroid cancer, liposarcoma, leiomyosarcoma, and extraskeletal Ewing sarcoma) underwent both WB-MRI and SS to detect bone metastasis. All patients were followed more than 6 months by MR imaging, SS, or computed tomographic (CT) examination.
Purpose: To determine whether living related retroperitoneoscopic donor nephrectomy (RDN) is a safe and effective procedure.
Patients And Methods: From September 2001 to May 2004, RDN was performed in 50 consecutive patients at our hospital. All patients were followed longitudinally with office visits.
Purpose: To compare the effectiveness of whole body MRI (WB-MRI [magnetic resonance imaging]) and bone scintigram (BS) at detecting bone metastasis.
Materials And Methods: WB-MRI was performed on 16 patients for detecting bone metastasis (6 breast carcinoma, 7 prostatic carcinoma, 1 renal cell carcinoma [RCC], 1 hepatocellular carcinoma [HCC], and 1 primary unknown). BS was also performed in all cases.
Few autopsy cases of sudden death in renal transplant recipients have been reported in the literature. The present case was a 50-year-old female recipient of a living-related renal transplant, who died suddenly after a good post-transplant course of 14 years. The patient was admitted in December 2000 for detailed investigation for ascites, and died unexpectedly 1 month later.
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