Yasumasa Shichiri

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The most serious problem regarding a laparoscopic partial nephrectomy is how to perform bloodless excision without causing renal ischemia in a limited working space. We report the case of a 65-year-old man with left small renal cell carcinoma in the posterior mid zone who underwent a laparoscopic partial nephrectomy through a retroperitoneal approach by(More)
Ureterolysis and subsequent intraperitonealization were performed laparoscopically in 2 patients with unilateral idiopathic retroperitoneal fibrosis. The operative procedure was easily accomplished, and the outcome was excellent in the patient who had a ureteral stricture of 2 cm in length, whereas the operation was technically more complicated with a(More)
Between July 1992 and October 1996, 100 transperitoneal laparoscopic adrenalectomies were performed on 99 patients at our hospital and affiliated hospitals. The clinical diagnoses were primary aldosteronism (41 patients), Cushing's syndrome (15), pre-Cushing's syndrome (6), pheochromocytoma (7; 8 adrenal glands), adrenal cancer (2), nonfunctioning adenoma(More)
PURPOSE Childhood inguinal herniorrhaphy is a frequent causes of seminal tract obstruction. We investigate the characteristics of this obstruction, surgical techniques for reanastomosis and outcomes in patients with bilateral or unilateral obstruction caused by inguinal herniorrhaphy in childhood. MATERIALS AND METHODS We treated 22 men an average of 30.5(More)
BACKGROUND Continent urinary diversion (CUD) is performed on patients after total cystourethrectomy due to invasive bladder cancer or other diseases requiring urinary diversion. Since 1984, we have performed CUD using either the Kock pouch procedure or a modified Indiana pouch method. During the long-term follow-up, increasing numbers of late complications(More)
OBJECTIVE The clinical utility of the determination of serum prostate-specific antigen-alpha1-antichymotrypsin complex (PSA-ACT) for the diagnosis of prostate cancer, especially in cases in the diagnostic gray zone, is still unclear. MATERIAL AND METHODS With the use of a newly approved enzyme immunoassay for the detection of PSA-ACT, 907 sera, including(More)
BACKGROUND A 43-year-old woman who had been using intrauterine contraceptive devices for the past 10 years underwent an emergency operation for bowel and urinary obstruction. METHODS/RESULTS Frozen section analysis showed undifferentiated adenocarcinoma. Incomplete tumorectomy, ileal resection, partial cystectomy, colostomy and bilateral(More)
A type of sclerosing lipogranuloma of the male genitalia that is different from cases caused by injection or application of foreign bodies is reported in 4 patients. The characteristics of the disease are a symmetrical Y-shape of the granuloma, spontaneous regression, severe infiltration of eosinophils in the granuloma, eosinophilia of the peripheral blood(More)
BACKGROUND Continent urinary reservoirs (CUR) have become one of the major options for patients requiring urinary diversion to improve their quality of life (QOL). To assess whether CUR enhanced postoperative QOL, we surveyed patients with CUR and ileal conduit (IC) using a questionnaire sent by mail. PATIENTS AND METHODS The questionnaire consisted of(More)
BACKGROUND We assessed our experiences in performing a laparoscopic nephrectomy, with regard to complications and the learning curve, during a 4-year period. METHODS Between November 2000 and October 2004, a total of 78 laparoscopic nephrectomies were performed at our institution (37 radical nephrectomies, 30 nephroureterectomies and 11 simple(More)