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Biomedical subjects

Y Beyth

Publications and source records attributed to Y Beyth.

At least 163 records · Page 9Linked to original sources
PubMed1988

Primary squamous cell carcinoma of the endometrium.

A case of squamous cell carcinoma of the endometrium which fulfills Fluhmann's criteria is presented. This case is reviewed together with additional 25 cases which had been already reported in various papers in the literature. The pathogenesis and the etiologic factors associated with primary squamous cell carcinoma of the endometrium are discussed. A review of the literature indicates that this rare malignancy is found in older patients, is highly malignant and carries a poor prognosis as myometrial invasion, and local extension or metastasis is found in 80% of the patients.

Aged↗
PubMed1986

Intrapartum vibroacoustic stimulation in cases of normal and abnormal fetal heart rate patterns.

The fetal heart rate (FHR) response to a vibroacoustic stimulation was studied in 100 women during active labor. Three types of FHR responses were noted: acceleration, tachycardia of duration longer than 2 min, and combined acceleration-deceleration response. The last type was significantly more common in labors with abnormal FHR tracings. All fetuses demonstrating FHR response to the stimulation, including those with abnormal FHR tracings, had good outcome. The vibroacoustic stimulation is easily performed, noninvasive, and has no contraindications. Its possible application as an intrapartum test of fetal well-being awaits further clinical confirmation.

Acoustic Stimulation↗
PubMed1985

Pulmonary complications following endotracheal intubation for anesthesia in breech extraction.

A 28-year-old, healthy pregnant patient developed bilateral pneumothorax, subcutaneous emphysema, pneumomediastinum, pneumoretroperitoneum and pneumoperitoneum following endotracheal intubation and manual ventilation during general anesthesia for breech extraction. It is likely that positive-pressure ventilation was the cause for this very rare combination of complications. Early recognition and treatment may prevent such a catastrophe.

Adult↗
PubMed1985

Transperitoneal migration and ovum capture in rabbits.

It is not fully understood how eggs are captured by the fallopian tube. The close proximity of tube and ovary, and the movements of the fimbria across the ovarian surface during ovulation, are believed to contribute to ovum pickup. We studied the efficiency of ovum capture when contact between fimbria and ovary is prevented and the extent to which ovum transmigration may contribute to fertility. Unilateral right oophorectomy was performed in 55 rabbits, which were divided into three groups: in Group A, the contralateral oviduct was left intact; in Group B, the ampulla of the contralateral oviduct was occluded; in Group C, contralateral total salpingectomy was performed. None of the rabbits in Group A conceived on the oophorectomized side. Seven of 19 animals became pregnant in Group B and 15 of 18 conceived in Group C. The results indicate that direct fimbrial-ovarian contact is not essential for ovum capture, and that ovum transmigration could contribute to fertility.

Animals↗
PubMed1984

Tuboovarian autoamputation and infertility.

Asymptomatic or undiagnosed tuboovarian autoamputation in teenagers may have its impact on fertility later in life. Two cases are presented with infertility following unilateral adnexal autoamputation. The importance of awareness for possible subtorsion or torsion of adnexa in childhood and adolescence and its impact on fertility are discussed.

Adult↗
PubMed1982

The clinical significance of blood-contaminated midtrimester amniocentesis.

In 706 midtrimester amniocenteses, 180 (25.5%) samples yielded blood-stained amniotic fluid (macroscopically and microscopically), 152 (21.5%) contained maternal blood, 28 (3.9%) fetal blood and 8 samples contained both maternal and fetal blood. In the 180 cases of bloody midtrimester amniocentesis, the abortion rate was 6.6% when maternal blood was found and 14.3% when fetal blood was aspirated, compared with 1.7% in controls. The amount of blood drawn did not alter pregnancy outcome. The percentage of blood amniotic fluid in amniocenteses performed before the 16th week of pregnancy was much higher (36.7%) than during and after the 16th week of pregnancy (22%). Midtrimester amniocentesis should therefore be avoided before the 16th week of pregnancy.

Amniocentesis↗
PubMed1981

Ovum capture and fertility following microsurgical fimbriectomy in the rabbit.

Microsurgical fimbriectomy with removal of the fimbria ovarica was performed on one side in 19 rabbits. The other tube was left intact as a control. In 10 animals the new ostium was left free, some distance from the ovary. In the remainder, the ostium was fixed to the ovarian capsule. Three animals with a fixed ostium developed mild hydrosalpinx even though the neostomy was patent. Of the remaining 16 rabbits, 15 conceived and became pregnant in both uterine horns. There was no significant difference between nidation index on the two sides. It is concluded that intact fimbriae with a fimbria ovarica are not essential for normal ovum capture. It is therefore suggested that methods for clinical salpingostomy may require re-evaluation.

Animals↗