Publications by authors named "Tatsunori Ogawa"

The combination therapy of binimetinib, encorafenib, and cetuximab ("triplet regimen") was approved in Japan in November 2020 for the second-line treatment of BRAF V600E mutation-positive colorectal cancer. In this study, we encountered a patient who developed a liver injury requiring drug withdrawal on day eight of the triplet regimen administration. The protocol for the international phase III study did not specify blood and biochemical tests on day eight.

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We experienced a case in which long-term use of nivolumab in a patient with a history of ulcerative colitis led to disease control of gastric cancer. The case is a 77-year-old man. The patient had a history of ulcerative colitis and remained in remission on mesalazine 1500 mg/d.

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The duties of a clinical engineer (CE) during the coronavirus infection 2019 (COVID-19) pandemic were diverse. The original duties of a CE included operation and maintenance of life support equipment used for respiratory therapy, hemodialysis, and extracorporeal membrane oxygenation. The management of life support equipment is critical.

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Article Synopsis
  • Remdesivir is an antiviral drug that improves clinical outcomes in COVID-19 patients after five days of treatment and can accelerate recovery by 31%.
  • A case study of a 63-year-old man with severe COVID-19 on ECMO revealed a specific treatment regimen with remdesivir over ten days, including a loading dose and daily maintenance doses.
  • The pharmacokinetic analysis found normal serum creatinine levels and measured remdesivir and its metabolite GS-441524 at different times post-administration, indicating that monitoring these plasma concentrations is important for patients on ECMO.
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In 2 patients with postoperative lung metastases from renal cell carcinoma, we administered cabozantinib at a starting dose of 40 mg. The side effects were proteinuria(Grade 2), hand-foot syndrome(Grade 2), and hypertension(Grade 3), which subsided following dose reduction and drug suspension. We believe that a low starting dose of cabozantinib might be a suitable regimen for advanced renal cell carcinoma.

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Patients with the coronavirus disease 2019 (COVID-19) sometimes develop refractory respiratory failure and may require venovenous extracorporeal membrane oxygenation (VV-ECMO). It is known that the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is sometimes present in the blood of COVID-19 patients. VV-ECMO is often used for several weeks, and plasma leaks can occur, albeit rarely.

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Objective: Risk factors for immune-related adverse events(irAEs)associated with immune checkpoint inhibitors(ICIs) remain to be obscure. Therefore, we evaluated the patient background and clinical findings to identify risk factors for the development of irAEs.

Methods: The subjects consisted of 86 patients treated with ICIs between August 2018 and March 2020.

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Objective: To evaluate the efficacy and safety of direct hemoperfusion using a polymyxin B-immobilized polystyrene column (PMX-DHP) in severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)-positive pneumonia patients.

Methods: This study was a case series conducted at a designated infectious diseases hospital. Twelve SARS-CoV-2-positive patients with partial pressure of arterial oxygen/percentage of inspired oxygen (P/F) ratio < 300 were treated with PMX-DHP on two consecutive days each during hospitalization.

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The outbreak of coronavirus disease 2019 (COVID-19) is a global health threat. It is a respiratory disease, and acute kidney injury (AKI) is rare; however, if a patient develops severe AKI, renal replacement therapy (RRT) should be considered. Recently, we had a critically ill COVID-19 patient who developed severe AKI and needed continuous RRT (CRRT).

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A 50s man receiving dialysis for chronic kidney disease due to IgA nephropathy underwent laparoscopic reversal via Hartmann 's procedure for rectal cancer and multiple liver metastases, followed by chemotherapy for the liver metastases. Following a single course of mFOLFOX therapy, bevacizumab was administered for 8 courses, resulting in tumor shrinkage and a decrease in tumor marker levels. The initial doses were 60mg/m2 oxaliplatin and 280(bolus injection)and 1,680mg/m2 (continuous infusion)of 5-FU.

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"Immunosuppression and hepatitis B measures and guidelines for chemotherapy" were announced in 2009. However, a fulminant case that appeared when the guidelines were not observed was reported, and de novo hepatitis prevention is an urgent problem. The rate of compliance with these guidelines as of January 2014 was 20.

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