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Biomedical subjects

Y Komatz

Publications and source records attributed to Y Komatz.

At least 37 records · Page 2Linked to original sources
PubMed1991

[A case of pelvic lipomatosis].

This is a report of the fifth case of pelvic lipomatosis in Japan. A 52-year-old man presented himself in our hospital with a complaint of left lower abdominal pain on August 28, 1988. At that time, physical examination was unremarkable with the exception of mild obesity. The excretory urogram and retrograde pyelogram revealed left hydroureteronephrosis with tapering of the left lower ureter. Urethrocystogram showed an elongated posterior urethra with anterior displacement and elevation of the bladder. Computed tomography revealed excess of diffuse fatty tissue in the pelvic space with bladder deformity and rectal compression. Pelvic arteriogram demonstrated no neovascularity. A diagnosis of pelvic lipomatosis was established. He lost 6 kg by diet therapy. Left lower abdominal pain disappeared, but excretory urogram after eight months showed no changes.

Humans↗
PubMed1991

[Intrascrotal leiomyoma: report of a case].

A case of intrascrotal leiomyoma is reported. The patient was a 56-year-old male who complained of painless mass in the scrotum. He noticed the mass about 10 years ago and it had gradually enlarged. The mass was removed surgically. Pathohistological diagnosis of the specimen was leiomyoma. The literature revealed 13 cases of intrascrotal leiomyoma in Japan.

Genital Neoplasms, Male↗
PubMed1991

[Primary megaureter which showed aplasia of the muscle bundles on all dilated portions: a case report].

A case of primary megaureter in a 59-year-old man which might shed light on the etiology and pathology is described. Intravenous urography and the computed tomography showed a left marked hydro-nephro-ureter which compressed the bladder and right ureter. In the left ureter, dilated portions stretched beyond dilated portions; that is, five non-dilated portions lay among four dilated portions. On histological examination of this specimen, all dilated portions showed aplasia of muscle in which muscle bundles were not observed, while all non-dilated portions including ureterovesical junction showed normal muscle layers. A case presentation and brief review of the literature were made.

Dilatation, Pathologic↗
PubMed1991

[A case of uretero-vaginal fistula with ureteral foreign body stone originated from the suture thread].

A 32-year-old female was admitted to our hospital with the chief complaint of vaginal discharge of urine. She had undergone radical hysterectomy due to uterine cancer at another hospital by a gynecologic surgeon 5 years earlier. X-ray examination showed a stone-like shadow at the left ureter without hydronephrosis. She was diagnosed with ureterovaginal fistula with the left ureteral stone. Left ureterolithotomy and ureterovesiconeostomy was performed. The stone revealed a foreign body stone originating from the silk worm-gut which had penetrated accidentally the ureter when the vaginal wall was sutured at the previous surgery. Including our case, 15 cases of foreign body stones in the upper urinary tract were found in the Japanese literature and none of them were associated with ureterovaginal fistula.

Adult↗
PubMed1991

[A case of emphysematous cystitis with familial amyloidosis].

This is a report of the thirteenth known case in Japan of emphysematous cystitis. A 70-year-old man visited our hospital because of pollakisuria and macrohematuria on November 21, 1989. The patient had been known to have familiar amyloid polyneuropathy for the previous 3 years. Urinalysis showed marked hematopyuria. The residual urine was 216 cc, and urine cultures yielded 10,000,000 colonies of Escherichia coli per ml. Laboratory studies revealed systemic inflammatory findings, but no diabetic change. A plain X-ray film of the abdomen and an excretory urogram (DIP) showed small linear and round gas collections in the bladder shadow. A CT scan revealed multiple gas locules within the bladder wall. A diagnosis of emphysematous cystitis was established. The patient was given antibiotics, and there was striking clinical improvement. Histological examination of the endoscopically obtained biopsy specimen of the bladder revealed amyloidosis. We believe that this patient had a cystitis emphysematosa precipitated neurogenic bladder due to amyloid polyneuropathy and amyloidosis of the bladder.

Aged↗
PubMed1987

[Usefulness of the bladder assist device (BLAD)].

We investigated the effectiveness of the Bladder Assist Device on urinary tract infection of patients with indwelling catheters. The patients, except for those with cord bladder and vesicoureteral reflux, could urinate intermittently under the BLAD system. Irrigation of the bladder using BLAD made urine clear and decreased urinary bacteria. Because of intermittent urination in patients who had been using the BLAD system for two weeks, the urine became somewhat clear and the number of bacteria decreased. Combination of bladder irrigation and intermittent urination using this system may inhibit urinary tract infection of an indwelling catheter. BLAD is considered to be a useful device for patients with continuous indwelling catheters.

Adult↗
PubMed1986

Left renal vein hypertension in patients with left renal bleeding of unknown origin.

The pullback pressure from the left renal vein (LRV) to the inferior vena cava was studied in 16 patients with left renal bleeding of unknown origin (group A), 15 patients with hematuria of miscellaneous laterality (group B), and nine control subjects (group C). The mean pressure gradients were 5.0 +/- 2.0 mm Hg (mean +/- SD) in group A, 1.9 +/- 1.0 mm Hg in group B, and 1.1 +/- 0.9 mm Hg in group C. The mean pressure gradient of group A was significantly higher than that of groups B and C (P less than .001). From the results of control studies, we regarded pressure gradients greater than or equal to 3.0 mm Hg as indicative of LRV hypertension. With this criterion, 88% (14 of 16) of the patients in group A had LRV hypertension, which was considered a cause of hematuria. Analysis of the results of renal angiography in the 31 patients revealed that opacification of collateral pathways of the LRV was a significant angiographic finding in LRV hypertension.

Adolescent↗
PubMed1986

[Various problems concerning the treatment of benign prostatic hypertrophy--operative treatment; subcapsular prostatectomy].

We were quite puzzled to be asked to talk about open surgery for benign prostatic hypertrophy (BPH) at this symposium because transurethral resection prostatectomy (TUR-P) is now the usual procedure and open surgery is rarely performed. Problems arise when open surgery is performed rather than TUR-P as the main treatment for BPH under these circumstances and the criticism of negligence is inevitable. Cases in which open surgery was performed because the application of TUR-P seemed unsuitable are reviewed.

Aged↗
PubMed1986

[Thoracoabdominal approach for adrenal pheochromocytoma].

In the case of surgical approaches for adrenal pheochromocytoma, successful ligation and severance of the adrenal vein at the start can make intraoperative circulatory kinetics stable and subsequent operative procedures very easy. Recently, we adopted a thoracoabdominal approach in 5 cases of pheochromocytoma instead of transabdominal or translumbar approach which has so far been adopted for such tumors. The results revealed that the thoracoabdominal approach was very advantageous compared with these conventional approaches. Its main advantages include a wide and shallow operative field, early ligation and severance of the adrenal vein before mobilization of the tumor, easy operative procedure and short operation time, etc. The essential point is to carry out an operation not in a torqued flank-position but in a correct flank-position.

Abdomen↗
PubMed1986

[Preoperative management of pheochromocytoma with prazosin: report of three cases].

We used prazosin (alpha-blocker) for preoperative management of three patients with pheochromocytoma. All patients had episodic hypertension with headache and palpitation. The first dose of prazosin caused blood pressure to drop in one of three patients, but no significant hypotension was observed. By the daily dose of 6-8 mg prazosin with or without propranolol, subjective symptoms of the patients were improved and the frequency of the hypertensive attack was decreased Operations were carried out without significant complications, but phentramine and nitroprusside were required because of rapid rise of blood pressure during induction of anesthesia and surgical manipulation.

Adrenal Gland Neoplasms↗
PubMed1985

[A clinical study of urolithiasis in Shizuoka City Hospital--stone analysis and 24-hour urine calcium and uric acid levels].

Stone analysis was performed for 216 urinary calculi which were obtained from 205 patients in our hospital from January, 1980 to June, 1984. The results revealed 161 calcium stones, 21 uric acid stones, 19 struvite stones, 2 cystine stones and 13 others. Sixty one of the 205 patients (male 44, female 17) and 19 controls (male 11, female 8) were investigated for 24-hour urine calcium and uric acid. Forty seven of the patients had calcium stones, 7 of the patients had uric acid stones and 7 of the patients had struvite stones. The mean 24-hour urine calcium level was 146.8 +/- 76.5 mg/day for the male controls and 139.1 +/- 69.9 mg/day for the female controls. The mean 24-hour urine uric acid level was 528.1 +/- 132.6 mg/day for the male controls and 362.0 +/- 135.2 mg/day for the female controls. The mean 24-hour urine calcium level for the male calcium-stone group was 214.6 +/- 96.8 mg/day, and it was significantly higher than that for the male controls (p less than 0.05). The 24-hour urine analysis revealed abnormalities in 17 urolithiasis patients (27.9%) including hypercalciuria in 11 patients (18.0%) and hyperuricosuria in 9 patients (14.1%).

Adolescent↗
PubMed1979

Sole dermatoglyphics of patients with Klinefelter's syndrome (47,XXY).

We have reported the dermatoglyphic findings on the soles of eighty Japanese Klinefelter's syndrome patients (47,XXY). As compared with normal Japanese males and females, three statistically different traits were observed: (1) Distal loops in the hallucal area are smaller, (2) pattern intensity is higher, and (3) the frequency of triradius p is elevated.

Adolescent↗
PubMed1978

Taurodontism and Klinefelter's syndrome.

The incidence of taurodontism in 31 patients with XXY Klinefelter's syndrome was studied. Taurodont molars were observed in 6 of the 31 cases (19.4%), a significantly higher rate than among the controls. Though taurodontism is not an obligatory finding in Klinefelter's syndrome, it is believed to be one of the anomalies frequently observed in connection with this condition.

Adult↗