PubMed Health⌕ Search

Biomedical subjects

I Yajima

Publications and source records attributed to I Yajima.

11 recordsLinked to original sources
PubMed1993

[Transcatheter arterial embolization for severely dysfunctioning kidney].

The authors performed Transcatheter Arterial Embolization (TAE) with pure ethanol in five cases of severely dysfunctioning kidneys, for which conventional surgical nephrectomy had been conducted. In 3 out of 5 cases, the dysfunctioning kidneys were complicated by renal hypertension, while the other two had the complication of refractory urinary fistula. 1. Single TAE trials in 4 out of 5 patients, and a secondary TAE trial in the remaining patient resulted in successful complete embolization of the kidneys. 2. The size of the kidney in the bidirectional measurement by CT after TAE was reduced markedly in all the five cases and the reduction rate of the kidney was from 89.29 to 62.84%, and 72.61% on the average. 3. Both the blood pressure (BP) and plasma renin activity (PRA) in the three patients with complicated renal hypertension were all normalized two weeks after the TAE. Twenty six months, 48 and 60 months have elapsed in these three cases and blood pressure has remained normal without antihypertensive agents. From this result it is considered that TAE will induce the reduction of juxtaglomerular cell functions. 4. Two patients with urinary fistula were healed. 5. TAE has a number of advantages over surgical nephrectomy in that it is bloodless and noninvasive. Further, the techniques of TAE are easier than nephrectomy and TAE is applicable to almost all poor risk patients.

Aged↗
PubMed1993

[Ectopic prostatic tissue in the bladder].

A 55-year-old man with a 5-year history of microhematuria had a whitish sessile tumor at the ureteric ridge containing benign prostatic glandular tissue. The presence of benign prostatic polyps in the prostatic urethra is a common finding, but ectopic prostatic tissue elsewhere is rare, it has been described previously in a few cases in the trigonum. The origin of prostatic glands in this unlikely location is not yet fully understood. Prostatic tissue at any ectopic location is benign, although local recurrence has been reported. We reviewed 43 cases of ectopic prostatic tissue, 7 of which occurred in bladder include our case, reported in the Japanese literature. Ectopic prostatic tissue should be considered in the differential diagnosis of hematuria in the male.

Choristoma↗
PubMed1989

[Clinical application of third generation extracorporeal shock wave lithotriptor (TRIPTER X-1) to upper urinary tract stones].

Clinical trials of the third generation extracorporeal shock wave lithotriptor (TRIPTER X-1) on 30 patients with upper urinary tract calculi were performed from May to July, 1988. Eighteen patients (60%) were free from stones and 5 (16.7%) had stone fragments less than 5 mm, the effective rate of treatment which is sum of both group being 76.7 per cent, at one month after the treatment. The effective rate was 72.7 per cent for stones in the kidney and 87.5 per cent for those in the upper ureter. And the effective rate as to stone size was 100, 66.7 and 71.4 per cent, in stones less than 1 cm, 1 cm to less than 2 cm and 2 to 2.5 cm, respectively. Although gross hematuria skin ecchymosis, pain and fever were observed as side effects, none was serious enough to be mentioned. And post operative changes in blood chemistry were mild and transient. We confirmed extracorporeal shock wave lithotripsy using this machine for upper urinary tract stones is an effective treatment without any serious side effects.

Adult↗
PubMed1989

[Endoscopic needle bladder neck suspension for female stress incontinence].

Thirteen operations of endoscopic bladder neck suspension (Raz method) were performed for 12 patients with stress incontinence between October, 1986 and August, 1988. In all patients, except for one with small bladder capacity, the operations were successful. Disappearance of incontinence was maintained in 10 patients 5-27 months (mean 15.3 months) after the operation, and the success rate of this operation was 77% (10/13) at this follow up point. The operative technique was easy except for the adjustment of pulling up strength of the thread for suspension. We believe that the endoscopic needle bladder neck suspension will be performed more widely because this operation can be done safely in a short time without major complications and can produce very good results.

Adult↗
PubMed1989

[A case of renal leiomyoma with extensive cystic degeneration].

An extremely rare case of renal leiomyoma presenting as a cystic mass, involving the upper pole of the right kidney in a 59-year-old woman, complaining of right flank pain is reported. Some discussion regarding pathogenesis of leiomyoma with cystic change, diagnostic feature, malignant potential of leiomyoma and others was done. Since 1948, 19 cases including our own case of renal leiomyoma have been reported in the Japanese literature.

Female↗
PubMed1989

[243 cases of percutaneous nephrolithotomy--result of 5 years].

Between May, 1982 and April, 1987, upper urolithiasis of 247 kidneys of 243 patients, 174 male and 69 female, were treated by percutaneous nephrolithotomy (PNL). The main stone was successfully removed from 236 kidneys (about 95.5%). Seven cases of ureteral stone could not be removed by PNL, and were treated by traditional ureterolithotomy. In 3 cases of pelvic stone, the stone descended to the ureter during the PNL procedure, and was also removed by ureterolithotomy. In one case of pelvic stone, complete obstruction of uretero-pelvic junction after PNL occurred, and pyeloplasty was needed. One pelvic stone patient who had basical hypertension and arrhythmia died soon after PNL, because of acute myocardial infarction. Blood transfusion was needed in 31 cases (12.8%). The residual stones over 5 mm were noticed in 48 cases (20.3%). The most important point to succeed in PNL is to make a nephrostomy through the most suitable calyx to the stone. The easiest way to identify the location and connection of the aimed calyx with the stone in three dimensional position, is to take X-ray films in intravenous pyelograms not only from postero-anterior but also oblique positions. Additional transureteral lithotripsy (TUL) for the fragment descending to the ureter after PNL produces a much better result.

Adolescent↗
PubMed1988

[The influence of percutaneous nephrolithotomy on renal function evaluated by 99m-Tc-DTPA renoscintigram].

The influence of percutaneous nephrolithotomy (PNL) on renal function was evaluated by 99m-Tc-DTPA renoscintigraphy. The renoscintigram was recorded and regions of interest of both kidneys (R) and background (BKG) were settled. Renal uptake ratio was calculated by the following formula. Renal uptake ratio = (formula; see text). The renal uptake ratio of 50 patients were compared before and up to 6 months after PNL. Most cases showed an increase or no change in post-PNL renal uptake ratio in operated kidney. Five cases (10%) showed decreased renal uptake ratio of post-PNL. No risk factors for the renal damage caused by PNL such as age, sex, stone size, number of nephrostomy and course of PNL were detected when compared with increased or no change groups. In cases of complete staghorn calculi in the decreased renal uptake ratio group, compensatory hypertrophy of contralateral kidney PNL course might occur, and the function of the operated kidney might not have recovered. More during cases and longer follow-up is necessary for the recovery of renal function.

Female↗
PubMed1987

[Influences of percutaneous nephrolithotomy on renal function, an observation using the NAG-index and beta 2-microglobulin as indices].

To examine the influence of percutaneous nephrolithotomy (PNL) on renal function, we measured the activity of urinary N-acetyl-beta-D-glucosaminidase (NAG) and beta 2-microglobulin (beta 2MG) in patients with nephrolithiasis, before and 3, 5, 7, 14 days and 1 month after PNL. With PNL, renal function was recovered within one month, and PNL was thought to be a more protective method than pyelolithotomy. Recovery of renal function was delayed in the cases in which PNL had been attempted over three times. In the patients with preoperative high-grade hydronephrosis, the excretion of NAG and beta 2MG in the urine was delayed. NAG-index was considered to be a more sensitive parameter than beta 2MG to evaluate renal function. The NAG-index and beta 2MG values of bladder urine were in good correlation with those of nephrostomy urine 5 days or more postoperatively. Measurement of the urinary NAG-index 3, 7, 14, 30 days after PNL operation was considered valuable for determining changes in renal function.

Acetylglucosaminidase↗
PubMed1976

[Clinical study of amoxicillin used for treatment of infections of the lower urinary tracts (author's transl)].

The following results were obtained from treatment of 29 cases of lower urinary tract infections with amoxicillin. 1. Amoxicillin was remarkably effective in 13 cases of acute cystitis, in terms of effect according to dose and bacterial species. 2. The effective rate of amoxicillin in 10 cases of chronic cystitis amounted only to 30% due to complications and resistant bacteria. (The group given 1,500 mg/day was a little higher in the effective rate than the 750 mg/day group.) 3. Amoxicillin was low in effect against infections with Pseudomonas aeruginosa and hardly effective against bacteria resistant to amoxicillin. 4. So far as this study is concerned, amoxicillin produced good clinical results at a half dose of ampicillin, as in the fundamental experiment. 5. Any severe side effect was observed in no case.

Acute Disease↗