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Biomedical subjects

T Yazaki

Publications and source records attributed to T Yazaki.

At least 145 records · Page 8Linked to original sources
PubMed1985

Usefulness of long-term ambulatory electrocardiography in heart disease screening system for school children and high school students.

Long-term ambulatory electrocardiography was utilized in a heart disease screening system for elementary school children and junior and senior high school students in Nagoya, Japan. The elementary school children, and junior and senior high school students who have serious arrhythmias or potential risk of syncope and sudden death are the subjects of ambulatory monitoring. Of 42 school children and students taking ambulatory electrocardiography for frequent ventricular premature contractions, 8 had Lown's grade 4A, 4B or 5. The cases with third-degree AV block showed ventricular tachycardia or frequent ventricular premature contractions during exercise in ambulatory electrocardiograms. These complex ventricular arrhythmias are possible risk factors of sudden death. It has been proved that ambulatory monitoring is beneficial in the screening and management of serious arrhythmias in the heart disease screening system.

Adolescent↗
PubMed1985

Long-term protective immunity of recipients of the OKA strain of live varicella vaccine.

In spite of close contacts with patients who had varicella, 101 of 106 (95%) healthy and sick children (142 of 147 (97%) exposures of these children) who had received the OKA strain of live varicella vaccine 7 to 10 years earlier were protected against the disease completely. Among them, 37 of 38 (97%) vaccine recipients who received immunologic testing had varicella-zoster virus (VZV) antibodies tested by fluorescent antibody to membrane antigen method with a geometric mean titer of 1:9.3, and 37 of the 38 (97%) showed positive skin reaction to varicella-zoster virus antigen with erythema (mean diameter 13.4 mm). These findings were compared with those for 29 children who had contracted typical varicella 7 to 10 years earlier, whose seropositive rate was 100% with a geometric mean titer of 1:10.5, and 97% of whom (28/29) had positive skin reaction with mean diameter of 12.9 mm. These results indicate that the vaccine-induced protective immunity persists for approximately one decade and is almost equal to the long-term immunity following natural infection.

Adolescent↗
PubMed1985

Villous adenoma in the large bowel following ureterosigmoidostomy: a case report and review of the pertinent literature.

This report presents a case of colonic adenoma which developed after ureterosigmoidostomy. A 71-year-old man was initially treated by total cystectomy and ureterosigmoidostomy for transitional cell carcinoma of the bladder in 1970. In 1983, a routine checkup revealed urinary occult blood. A barium enema x-ray showed a polypoid lesion in the sigmoid colon. Colonoscopy confirmed the presence of the polyp adjacent to the ureteral stoma. The biopsy findings were interpreted as villous adenoma with severe atypia. This tumor was removed endoscopically. This is the seventh case report of neoplasia occurring in the sigmoid colon after ureterosigmoidostomy in Japan. Review of the pertinent literature indicates that patients who have undergone this type of urinary diversion have an increased risk of development of large bowel neoplasia. Adequate and regular surveillance of these patients has been suggested in order to help in early detection.

Adenoma↗
PubMed1985

[Results of a survey on the daily activities of patients following ureterosigmoidostomy].

Results of a questionnaire study on the daily life of patients undergoing ureterosigmoidostomy are reported. Nine patients who survived for more than 1 year after the operation were subjected to this study. At the time of their regular checkup, they were asked questions including the frequency of febrile attack, degree of daily work, bathing, complaints, frequency of urination and incontinence and feeling towards ureterosigmoidostomy. These patients had neither serious complications nor complaints. All except for 1 patient were satisfied and were enjoying daily life after ureterosigmoidostomy.

Activities of Daily Living↗
PubMed1985

[Present state of the multidisciplinary treatment of renal, bladder and prostatic tumors].

Surgery has been considered to be a main treatment of urogenital cancer. However, surgery alone could not completely cure these patients. The prognosis was poor. Multi-disciplinary treatment has been adopted to improve these results. However, there are many problems to be solved, such as combination of these regimens. In addition, the criteria for evaluation of the therapy should be considered. Nevertheless, multi-disciplinary treatment has been one of the most potent procedures for these malignancies.

Adenocarcinoma↗
PubMed1984

[A case of lipoma of the spermatic cord].

A case of lipoma of the spermatic cord is presented. The patient is a 68-year-old with the chief complaint of indolent swelling of the left scrotal content which had been noticed about a month ago. A firm elastic and walnut-sized mass with positive transillumination was palpable in the left spermatic cord, but ultrasound sonography demonstrated that it was a solid mass. Though the tumor was punctured with a 18-gauge needle, nothing could be aspirated. The tumor was removed and histologically diagnosed as lipoma originating in the left spermatic cord. Including the present case, 38 Japanese cases of lipoma of the spermatic cord are reviewed.

Aged↗
PubMed1984

[Surgical aspects of open renal biopsy done by urologic residents at Tsukuba University].

The results of the operative aspects of open renal biopsy performed by urologic residents at our University Hospital during the 18 months from July 1982 to December 1983 were analyzed. Open renal biopsy was performed by 1st to 6th year residents for various renal diseases on 19 male and 12 female patients, i.e., 14 patients from Pediatric Department, 16 patients from Nephrologic Department and 1 patient from Urologic Department. All except for 3 operations were done under the guidance of urologic staff. The length of incisional line ranged from 3 to 7 cm (average 5.1 cm) in pediatric patients, and that of nephrologic and urologic patients ranged from 5 to 15 cm (average 8.7 cm). The average operation time was 89.2 minutes for pediatric patients, although it was 81.1 minutes when 1 patient who had concurrently operated on inguinal herniorrhaphy in addition to open renal biopsy was excluded from the analysis. The average operation time was 122.2 minutes for nephrologic and urologic patients, although it was 112.8 minutes when 1 patient who had lost a large amount of blood was excluded. The average blood loss was 28.2 ml for pediatric patients when 2 patients whose blood loss was recorded as "small quantity" was excluded, but it was 24.5 ml when 1 patient who was concurrently operated on for inguinal herniorrhaphy in addition to open renal biopsy was excluded. The average blood loss during operation was 235.1 ml in nephrologic and urologic patients, but it was 149.95 ml when 1 patient who had lost a great deal of blood (1,598 ml) was excluded.(ABSTRACT TRUNCATED AT 250 WORDS)

Adolescent↗