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Biomedical subjects

R Tsugawa

Publications and source records attributed to R Tsugawa.

At least 55 records · Page 3Linked to original sources

[Clinical experience with extracorporeal shock wave lithotripsy (ESWL) in upper urinary tract stones].

We treated 100 patients of upper urinary tract stone using extracorporeal shock wave lithotripsy (ESWL), from April to October 1986. Eighty-six of the patients were treated by ESWL monotherapy, and the other cases required further treatment, such as percutaneous nephrostomy (PCN), percutaneous nephrolithotomy (PNL), and transurethral ureterolithotripsy (TUL). On the X-ray film obtained from one to three months after ESWL, 73 patients had no stones, 8 patients had sandy stones, 7 patients had small fragments less than 5 mm, 2 patients had large stones equal to or greater than 5 mm and 10 patients could not be followed up. Therefore, 97.7% of all patients were successfully treated. In conclusion, ESWL is considered to be an ideal method to treat upper urinary tract stones, and soon will become the first choice of treatment of urolithiasis together with the progress in endourological techniques.

Humans↗

[Clinical studies on medical disorders of patients with benign prostatic hypertrophy over 65 years of age].

The medical disorders of 269 in-patients with benign prostatic hypertrophy who were over 65 years old and hospitalized between September 1974 and March 1985, were reviewed. The most frequent preoperative disorder was of the cardiovascular system. A comparative examination of the operative group with the non-operative group was made by nine preoperative risk factors, which showed a statistically significant difference at the 0.1% level.

Age Factors↗

[Multivariate analysis of factors affecting the prognosis of renal cell carcinoma].

During the last 10 years, we histologically or clinically diagnosed 36 cases of renal cell carcinoma in our department. Concerning the factors affecting the prognosis of renal cell carcinoma, we analyzed 18 data items by mean of quantification II, one of the methods of multivariate analysis. The results were as follow: 1. Operation, stage, age, ESR and tumor weight were found to be significant factors in evaluating the prognosis. 2. The prognosis group and good prognosis group were clearly divided by this analysis.

Adult↗

[Clinical studies on cefoperazone in renal transplantation].

Two grams of Cefoperazone was intravenously administered twice a day for 5 days by drip infusion to 10 donors and 9 recipients after renal transplantation. The concentration of cefoperazone in the blood after administration in both donors and recipients did not show any accumulation tendency. The urinary recovery rate of cefoperazone for 24 hours in donors was 8.8% and that in recipients was 8.1%. There was no change in the renal function in donors after administration of cefoperazone. No change was observed in blood examination, BUN or creatinine, but S-GOT and S-GPT showed a temporary increase in 1 donor and 1 recipient. It is considered that Cefoperazone is a very useful drug for prophylactic chemotherapy after renal transplantation.

Adolescent↗

[Urological complications after renal transplantation].

Urological complications occurred in 17.5% of the 80 patients who had received renal transplantations in our clinic between March, 1975 and May, 1984. Urinary fistulas occurred in 3 patients, urolithiasis occurred in 6 patients, ureteral stenosis occurred in 1 patient and urinary tract bleeding occurred in 4 patients. Graft loss was observed in 1 patient, but there were no patients whose death was directly attributable to urological complications. Urological complications can be avoided by careful procedures in donor nephrectomy and urinary tract reconstruction.

Adolescent↗

[Four cases of Salmonella urinary tract infection].

Although gastroenteritis is the most common manifestation of salmonella infection in man, focal involvement of the urinary tract is not frequently encountered. For the last eight years we observed four cases of salmonella urinary tract infection. One case had ureterocele and the others had calculous diseases. All cases were treated with chemotherapy and surgical intervention. One patient died and the others were cured.

Abscess↗

[Total parathyroidectomy with autotransplantation in secondary hyperparathyroidism].

Five patients with chronic renal failure were undergone total parathyroidectomy and immediate autotransplantation into the muscle of the forearm. All patients had relief of symptoms and restoration of PTH levels to normal. This technique of parathyroid transplantation offers the surgeon versatility in managing patients with hyperparathyroidism.

Adult↗

[Statistical analysis on 1,500 urinary calculi by using microcomputer].

In our laboratories, more than 1,500 urinary calculi have been analyzed by infrared spectroscopy. These data were statistically analyzed by microcomputer. The most frequent type was calcium oxalate combined with calcium phosphate, followed by pure calcium oxalate and magnesium ammonium phosphate combined with calcium phosphate. In particular, the composition of magnesium ammonium phosphate combined with calcium phosphate increased as compared with that four years earlier. Four years ago, we spent one month to statistically analyze 300 urinary calculi. But in this study, only sixteen days was required to analyze 1,500 urinary calculi by using a microcomputer.

Adolescent↗