Jiro Kajikawa

Learn More
OBJECTIVE Effects of sorafenib in general clinical practice, especially those with patients of Asian ethnicity, have been rarely investigated. We assessed efficacy, safety and prognostic factors for progression-free survival in Japanese patients receiving sorafenib for advanced renal cell carcinoma. METHODS We performed a retrospective analysis of 159(More)
We have investigated multiphoton multiple ionization dynamics of xenon atoms using a new x-ray free-electron laser facility, SPring-8 Angstrom Compact free electron LAser (SACLA) in Japan, and identified that Xe(n+) with n up to 26 is produced at a photon energy of 5.5 keV. The observed high charge states (n≥24) are produced via five-photon absorption,(More)
BACKGROUND Sorafenib is a multikinase inhibitor used as a second-line treatment for metastatic renal cell carcinoma (mRCC). However, it is very difficult to estimate sorafenib dosage because it is difficult to maintain stable administration and dosage intervals due to several side-effects. We examined the correlation between relative dose intensity (RDI)(More)
A thirteen-year-old girl sought medical advice because of a markedly weakened urinary stream with severe hesitancy. She was referred to the pediatric clinic because of 3 episodes of acute urinary retention during a previous month. Pelvic examination showed a retrovesical tumor. An excretory urogram revealed bilateral ureterectasis and pyelocalicectasis. Two(More)
Using electron spectroscopy, we have investigated nanoplasma formation from noble gas clusters exposed to high-intensity hard-x-ray pulses at ~5 keV. Our experiment was carried out at the SPring-8 Angstrom Compact free electron LAser (SACLA) facility in Japan. Dedicated theoretical simulations were performed with the molecular dynamics tool XMDYN. We found(More)
An 88-year-old woman was hospitalized with the chief complaints of lower abdominal pain, miction pain and pollakisuria. Radiographs showed a giant bladder stone shadow, 12.0 x 9.0 cm in size. Cystolithotomy was performed under the diagnosis of bladder stone. The extirpated stone weighed 510 g, and measured 10.0 x 7.5 x 6.0 cm in size. The stone had four(More)
A 20-year-old man with congestive heart failure (CHF) and hypertension (HT) was admitted to hospital. Ultrasonic echocardiography showed that he had aortic stenosis caused by a bicuspid aortic valve. The plasma renin concentration was slightly elevated, and enhanced magnetic resonance imaging and renography revealed a hypoplastic kidney that had almost lost(More)
PURPOSE To determine the value of color Doppler ultrasonography (CDUS) in the diagnosis of acute scrotum. MATERIALS AND METHODS 10 patients referred to our hospital with acute scrotal pain were included in this study. All patients were evaluated with CDUS after the initial clinical examinations. Blood flow of the involved testis was compared(More)
A part of our continuous investigation on the clinical effect of cefaclor against urinary tract infections was reported herein. Cefaclor, a daily dose of 0.75 g t.i.d., has been applied for the treatment of (I) 26 cases with the simple UTI and (II) 41 cases with the complicated. Rates of effectiveness were obtained 100% in (I) and 80% in (II). Side effects(More)