Publications by authors named "Kamizuru M"

Introduction: The treatment of thrombi in the renal vein (RV) and inferior vena cava (IVC) requires advanced laparoscopic experience. We present three cases of hand-assisted laparoscopic nephrectomy (HALN) using a novel technique for treating advanced renal cell carcinoma (RCC) with thrombi in the RV and IVC. .

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An unique laparoscopic ureteroneocystostomy technique was performed to treat an iatrogenic ureterovaginal fistula that was formed in a 69-year-old woman following open modified radical hysterectomy for endometrial cancer. Severe adhesions between the distal ureter and the surrounding tissues, including the iliac artery, were observed. Owing to difficulties in identifying the distal ureter, the proximal ureter was identified and dissected downward to free the ureter, thereby allowing anastomosis.

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A 61-year-old man was referred to our department because of painless and stony hard mass beside the left testis. Serum levels of lactate dehydrogenase, alpha-fetoprotein and human chorionic gonadotropin were within normal ranges. The ultrasonography of the mass showed almost homogenous and relatively low intensity echogram.

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A 48-year-old man consulted our hospital complaining of painless swelling of the left scrotal contents that had gradually increased for 5 years. Serum LDH, alpha-fetoprotein and HCG were within normal ranges. The ultrasonography showed heterogeneous echogram including high-echogenic spots and relatively a low-echogenic hydrocele.

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A 75-year-old man was admitted to our hospital for treatment of superficial bladder tumor. Transurethral resection (TUR) was performed and histopathological examination revealed a transitional cell carcinoma (G2). Despite one course of post-TUR bladder instillation therapy using pirarubicin hydrochloride, carcinoma in situ (CIS) was found 4 months later.

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In renal tumors, we often encounter cases in which accurate diagnosis before surgery is difficult. The serial changes in various diagnostic images were studied in a case of renal cell carcinoma in which definitive diagnosis could not be made by various imaging examinations and biopsies. We report on a case of renal cell carcinoma in a young adult.

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A 65-year-old man presented with a complaint of the swelling of his right scrotum. Ultrasonogram indicated a tumor in the right scrotum, but it was not apparent whether the tumor arose from the right testis or not. Right high orchiectomy was performed due to the suspicion of malignancy.

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The pharmacokinetics of intravenously administrated cisplatin and etoposide were studied in a patient with seminoma (stage IIIA) receiving hemodialysis for chronic renal failure. The treatment schedule was as follows: 7 mg/m2 of cisplatin at day 1, 3, 5; 14 mg/m2 of cisplatin at day 2, 4; 70 mg/m2 of etoposide at day 1-5; hemodialysis at day 2, 4. After the treatment myelosuppression was very strong.

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We report a case of bilateral upper urinary tract tumors after total cystectomy. A 67-year-old male with multiple bladder tumors underwent total cystectomy and ileal conduit urinary diversion. Pathological diagnosis was transitional cell carcinoma, grade 3 (G3), pT1b.

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Between May 1994 and March 1996, a total of 427 cases of upper urinary tract stones were treated by extracorporeal shock wave lithotripsy (ESWL) using a Siemens Lithostar2. Of 427 patients, 167 had renal stones and 260 had ureteral calculi. A double J stent was inserted preoperatively for patients with stones > or = 20 mm in diameter.

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We investigated the effects of combination therapy with interleukin 2(IL-2) and cyclophosphamide (CPM) in C3H/HeN mice implanted with mouse bladder tumor cells (MBT2). Tumor growth was suppressed in the mice treated with IL-2 alone and mice treated with CPM alone, although not completely. However, tumor growth was completely suppressed in the mice treated with both IL-2 and CPM.

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N-Butyl-N-(4-hydroxybutyl)-nitrosamine (BBN), which induces bladder carcinoma in female Wistar rats and female C3H/HeJ mice, was given as 0.025% (w/v) solution to rats and 0.05% to mice in the drinking water.

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We studied the antimutagenic effects of urine on the SOS-inducing activity of mutagenic substances by using a novel test system (umu-test) for detecting DNA damaging agents, which uses a new tester strain (Salmonella typhimurium TA1535/pSK1002). The SOS-inducing activity of chemicals was detected in terms of the level of umu operon expression by measuring beta-galactosidase activity. We first examined the effects of various amounts of urine on SOS responses caused by mitomycin C (MMC).

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A 62-year-old male patient consulted us because of gross hematuria and was diagnosed as having a bladder tumor. Total cystectomy was performed and a Koch pouch was utilized. Two years and nine months later, he died as a result of recurrence of bladder tumor and pathological autopsy was performed.

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MBT-2 in C3H/HeN mice was used as a model to examine cytotoxic activity. The cytotoxic activities examined were those of natural killer cells (NK), lymphokine activated killer cells (LAK), and tumorcidal macrophage (M psi). NK activity increased in early tumor bearers, but LAK and M psi activities increased in middle tumor bearers.

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We experienced a case of peripelvic extravasation after extracorporeal shock wave lithotripsy (ESWL) treatment. A 62-year-old man was admitted to our hospital with a complaint of macroscopic hematuria. The patient was diagnosed as having a radiolucent stone in the right kidney and ESWL treatment was performed to focus the stone by using drip infusion pyelography (DIP) under epidural anesthesia.

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We investigated the effect of combination therapy with interleukin 2 (IL-2) and cyclophosphamide (CPM) in C3H/HeN mice implanted with mouse bladder tumor cells (MBT2). MBT2-bearing mice were treated with a single intraperitoneal injection of 120 mg/kg CPM on day 10 and/or subcutaneous administration of 5 x 10(4) units IL-2/day from day 11 to day 20. As a result, the growth of tumor in mice treated with IL-2 alone was slightly suppressed.

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The patient was a 56-year-old male. Renal cyst and intracystic mass were incidentally found in the right kidney by ultrasound sonography. Intracystic mass was enhanced.

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The antitumor activity of combination therapy of recombinant human tumor necrosis factor alpha (rHu-TNF alpha) and chemotherapeutic agents against murine bladder tumor (MBT-2) was studied. Tumors were intradermally transplanted into the hind leg of C3H-HeN mice and allowed to grow until they reached a diameter of 8 to 10 mm 10 days after transplantation. TNF (3,000 units) was given intraperitoneally from day 10 to day 19, and the chemotherapeutic agents, 5-FU (60 mg/kg), CPM (100 mg/kg), CDDP (10 mg/kg) and ADM (5 mg/kg), were applied once intraperitoneally on day 10.

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Thymus lymphocyte subsets in uraemic rats were studied using monoclonal antibodies. Severe and moderate uraemia was induced in rats, and sham-operated and normal rats were used as the controls. As a result, the weight of the thymus decreased in uraemic rats.

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The authors examined interleukin-2 (IL-2) production and interferon gamma (IFN gamma) production of peripheral blood mononuclear cells in 28 patients with renal cell carcinoma and 17 control subjects. The peripheral blood was obtained prior to the initiation of therapeutic procedures. The patients were divided into two groups according to tumor size, less than or equal to 5 cm and greater than 5 cm.

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We performed extracorporeal shock-wave lithotripsy (ESWL) on 1,701 patients in a total of 2,438 sessions using the Dornier kidney lithotriptor Model HM III from July 1985 to the end of June 1990. Among the patients with a solitary stone, 1,200 cases were available for the follow-up study in which the results of ESWL were analyzed according to the location and size of the stone. ESWL performed against stones at pelvis and calyces gave the best results.

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At Osaka City University, 1,987 patients with urolithiasis have been treated by extra-corporeal shockwave lithotripsy (ESWL) during a four-year period. We treated 5 patients with horseshoe kidney and the obtained results were analyzed retrospectively. Three of these patients, who had a solitary stone could successfully be treated by ESWL as monotherapy.

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We report our experience with extracorporeal shock wave lithotripsy (ESWL) in the treatment of ureteral and cystine stones, which are known to be difficult to treat by this method. First, in order to determine the effectiveness of the ureteral catheter in the destruction of ureteral stones, we compared the clinical results of 121 patients treated without the catheter and 141 patients inserted with the catheter. There was no significant difference in the success rate between the two groups regardless of stone size, which indicates that the use of the ureteral catheter had no effect on the outcome of treatment.

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1 x 10(5) cells of FAMFT-induced bladder cancer cell line (MBT-2) were injected into the right leg of the C3H/He mice. 10 days later, these animals with the same tumor size were divided into four groups. Group 1 is the control with no treatment.

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