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F Ito

Publications and source records attributed to F Ito.

369 records · Page 21Linked to original sources
PubMedDate not supplied

Clinical application of a new stain to detect acrosome-reacted sperm for predicting polyspermic fertilization in IVF-ET.

The aim of this study was to evaluate the efficacy of Blutstan staining of human spermatozoa for predicting the spermatozoa capacity of fertilization in human IVF. Blutstan, a prestained glass slide coated with dyes, is able to identify activated sperm quickly and easily. Acrosomal reactivity of spermatozoa was evaluated with this slide glass at the insemination of IVF of 30 couples. There was significant correlation between the Blutstan reactivity and the fertilization rate (r = .52, p < .01). Furthermore, spermatozoa with high Blutstan reactivity were fertilized oocytes polyspermy. This method was rapid, simple, and useful for detecting activated sperm and predicting for the polyspermic fertilization in clinical setting.

Acrosome↗
PubMedDate not supplied

Transient rapid growth of uterine leiomyoma in a postmenopausal woman.

We report a case of transient rapid growth of uterine leiomyoma in a postmenopausal woman. A 58-year old woman presented with a rapidly enlarging pelvic tumor, from a 14-week to a 20-week gestational size in the one month. Transcervical needle biopsy revealed a smooth muscle tumor with 5 mitotic figures per 10 high power fields. However, surgical specimen obtained 1 month later revealed less than 1 mitotic figure per 100 high power fields. This variation may influence the final histopathological diagnosis because mitotic index is believed to be one of the most reliable histopathological parameters for differentiating between uterine leiomyoma and leiomyosarcoma.

Cell Division↗
PubMedDate not supplied

Diagnostic accuracy of needle biopsy of uterine leiomyosarcoma.

We previously reported on the efficacy of transcervical needle biopsy of a uterine muscle tumor. In this study, to examine diagnostic accuracy of our needle biopsy with small specimen size, previous slide preparations were used from 8 cases diagnosed with leiomyosarcoma and from 24 post-operative leiomyoma cases. Each tissue specimen was examined through needle biopsy-sized slit that had been randomly positioned over the slide. Three predictors: mitotic index, cytologic atypism, and tumor cell necrosis were evaluated on a 3-point scale (0, 1, or 2 points). When the diagnostic cut-off value was set to two, the sensitivity was 92.5% and the specificity was 100%.

Biopsy, Needle↗
PubMedDate not supplied

Secondary excision of choledochal cysts after previous cyst-enterostomies.

BACKGROUND/AIMS: Patients with a choledochal cyst previously treated by internal drainage should undergo secondary cyst excision. The results of such secondary excisions have not yet been reported. METHODOLOGY: Over a 27-year period, 121 patients underwent excision of a choledochal cyst at our hospitals. Of these, 14 patients underwent secondary cyst excision following internal drainage. These patients were compared retrospectively with the remaining 107 patients who underwent primary cyst excision. RESULTS: Blood loss and operative time were greater, and early and late post-operative complications were significantly more frequent in the secondary excision group. Wound infection (early complication), pancreatic stones (late complication), and hepatolithiasis (late complication) were significantly more common in the secondary excision group. Histologically, inflammation and biliary glands were more frequently seen in the resected bile ducts in the secondary excision group. CONCLUSIONS: The long-term results of secondary excision of choledochal cysts are worse than after primary excision. The frequent late complications may be related to the development of biliary glands as a consequence of cyst-enterostomy.

Adolescent↗
PubMedDate not supplied

An autopsy case of intramedullary venous malformation of the spinal cord with spreading hematomyelia.

A 23-year-old Japanese woman experienced sudden severe shoulder pain, and subsequently died of cardiorespiratory arrest after an 8-day course of illness. Autopsy revealed a venous malformation in the spinal cord at the C6 level with fresh massive hemorrhage showing widespread rostrocaudal extension. The upper limit of the hemorrhage was in the left gracile nucleus of the medulla oblongata, and the lower limit was in the left posterior horn of the spinal cord at L4. The hemorrhage extended through the spinal cord, involving the left posterior horn and intermediate zone of the gray matter and the ventral part of the posterior funiculus. The mechanism of the extension of the hemorrhage and the pathogenesis of the spinal venous malformation are discussed.

Adult↗
PubMedDate not supplied

[Arsenic and health].

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Arsenic Poisoning↗