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Dive into the research topics where Charles Bahary is active.

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Featured researches published by Charles Bahary.


Gynecologic Oncology | 1990

Primary paraovarian cystadenocarcinoma: Clinical and management aspects and literature review

M. Altaras; Richard Jaffe; Mario Corduba; Michael Holtzinger; Charles Bahary

Two cases of primary paraovarian-origin serous cystadenocarcinoma, one invasive and one of low malignant potential, are presented. Both were diagnosed in postmenopausal women and were initially treated surgically. As of this writing, both women have survived 48 months past their initial diagnosis and have no clinically detectable disease. Clinical aspects and management problems of this fairly recently identified and rare entity are discussed and the literature on primary paraovarian malignant epithelial tumors is reviewed.


Gynecologic and Obstetric Investigation | 1991

Ultrasonic Validation of Residual Bladder Volume in Postvaginal Hysterectomy Patients

Ron Maymon; Shlomo Gilboa; Jacques S. Abramowicz; Adrian Shulman; Michael Toar; Charles Bahary

Transverse and sagittal bladder diameters were measured with real-time ultrasound in 80 patients (100 measurements) during the first 2 days of postvaginal hysterectomy to assess the residual bladder volume and compared with the catheterization volume for the same patients. The sonographic method, with a 97.7% specificity and a negative predictive value of 89.5%, proved to be specific enough to eliminate the necessity of routine catheterization for measuring residual bladder volumes of greater than or equal to 150 cm3, thus decreasing the incidence of some major postoperative complications that can occur due to unnecessary catheterization.


American Journal of Obstetrics and Gynecology | 1991

Uterine rupture at term pregnancy with the use of intracervical prostaglandin E2, gel for induction of labor

Ron Maymon; Adrian Shulman; Meir Pomeranz; Michael Holtzinger; Luis Haimovich; Charles Bahary

Prostaglandin E2 is a powerful oxytocic agent that reliably initiates labor, even in the presence of an unripe cervix. The low incidence of fetomaternal complication contributes to its universal use. We report a rare case of uterine rupture after intracervical application of prostaglandin E2 gel. Thus far no prostaglandin compound or method of administration seems to be exempt from such a complication.


Acta Obstetricia et Gynecologica Scandinavica | 1989

Abnormal Thyroid Function in Hyperemesis Gravidarum

Adrian Shulman; Menahem S. Shapiro; Charles Bahary; Louis Shenkman

Thyroid function was evaluated in 41 consecutive women with hyperemesis gravidarum (HG). In 11, increased free thyroxin concentrations (FT4) were measured. After one week of conservative therapy, 4 patients with persistent emesis were treated with antithyroid agents. Three of these 4 displayed other signs of hyperthyroidism. Emesis resolved in the other 7 patients within a week of conservative therapy. FT4 levels also returned to normal in these 7 patients within several weeks. Thyrotropin‐releasing hormone (TRH) was administered to 10 of the 11 patients. Abnormal TSH responses, suggesting varying degrees of autonomous thyroid function were noted in all 4 patients treated with antithyroid drugs and in 3 of the untreated patients. Underlying clinical signs and symptoms of hyperthyroidism should be sought in patients with HG. In the presence of persistent emesis, despite conservative therapy of at least one weeks duration and the presence of abnormal thyroid function studies, the use of antithyroid agents should be considered.


Gynecologic and Obstetric Investigation | 1992

Conservative Treatment of Ectopic Pregnancy and Its Effect on Corpus luteum Activity

Adrian Shulman; Ron Maymon; Nissim Zmira; Michael Lotan; Michael Holtzinger; Charles Bahary

Corpus luteum activity was monitored in 15 women undergoing nonsurgical management of ectopic pregnancy with local methotrexate injection followed by alternating oral methotrexate and citrovorum factor (group A, n = 8) or local methotrexate injection alone (group B, n = 7). All patients initially demonstrated a viable corpus luteum (plasma progesterone ranged from 1.4 to 19 ng/ml). The treatment was successful in 14, with the exception of one whose tube ruptured 11 days after local administration of methotrexate, despite a continuous decrease in beta human chorionic gonadotropin, 17 beta-estradiol and plasma progesterone levels. There seems to be no correlation between the success of the treatment and the behavior of beta human chorionic gonadotropin, 17 beta-estradiol and plasma progesterone. Three patients from group A and two from group B displayed an initial rise in beta human chorionic gonadotropin following the initiation of the therapy, but the corpus luteum response differed. In group B patients, 17 beta-estradiol and plasma progesterone levels increased in parallel with beta human chorionic gonadotropin. Group A patients displayed a continuous decrease in 17 beta-estradiol and plasma progesterone levels despite the elevation of beta human chorionic gonadotropin, suggesting a possible effect of the systemic methotrexate on corpus luteum activity.


Journal of Assisted Reproduction and Genetics | 1992

Lack of correlation between hormonal blood levels and endometrial maturation in agonadal women with repeat implantation failure following embryo transfer from donated eggs.

Isaac Ben-Nun; Amir Less; Hagai Kaneti; Yehudit Ghetler; Michael Shilon; Adrian Shulman; Charles Bahary; Yoram Beyth; Annette Siegal

Five women with ovarian failure who repeatedly failed to conceive following embryo transfer from donated eggs underwent endometrial development investigation. One endometrial biopsy was obtained on cycle days 19, 21, and 23 during three consecutive artificially induced cycles. All five patients had only early secretory changes on days 19 and 21. Histological evaluation on cycle day 23 revealed various developmental stages: two women had “in-phase” endometrium, two patients had adequately developed stroma but significantly retarded glandular maturation, and one women showed no progress. The histological findings were conclusive for a significant maturation delay and an impaired endometrial receptivity. There was a lack of correlation between the peripheral hormonal blood levels and the endometrial maturation.


Obstetrical & Gynecological Survey | 1990

Placental site trophoblastic tumors (trophoblastic pseudotumors): pathology and clinical importance.

Ron Maymon; Batia Bar-Shira Maymon; Adrian Shulman; Meir Pomeranz; Charles Bahary

Placental site trophoblastic tumor (PSTT), which can be regarded as a subtype of gestational trophoblastic neoplasia is discussed. The histopathological features include trophoblastic proliferation without the typical organization of the bilamelar cyto and syncytiotrophoblastic villus. Ultrastructural investigation has demonstrated a clone structural relationship between the infiltrating cells and those of the trophoblastic components of the normal human placenta. Clinical management should be based on the complete surgical resection of the mass and a follow-up by measuring the serum levels of beta-human chorionic gonadotropin fractions.


European Journal of Obstetrics & Gynecology and Reproductive Biology | 1985

Placenta previa - the identification of low- and high-risk subgroups

Israel G. Gorodeski; Alexander Neri; Charles Bahary

Among a group of 155 women with placenta previa (PP), two subgroups were identified: subgroup A consisted of 56 pregnancies (56 newborns) in women who had an asymptomatic antenatal course and who were delivered following a single episode of uterine bleeding; subgroup B consisted of 99 pregnancies (103 newborns) in women who had multiple antepartum bleeding episodes. The women in subgroup B were older, more parous, had more abortions and caesarean sections compared to those in subgroup A. Although the distribution of women in both subgroups with respect to the types of PP was similar, the prognosis in subgroup A was better with respect to various maternal and perinatal aspects. The recognition of low- and high-risk subgroups among women with PP may have practical implications for management protocols.


Acta Obstetricia et Gynecologica Scandinavica | 1989

Scleroderma and Pregnancy

Ron Maymon; Moshe Fejgin; Noah Ben-Aderet; Charles Bahary

We describe a rare case of a pregnancy that occured in a patient with scleroderma, and ended in poor fetal outcome.


Journal of Assisted Reproduction and Genetics | 1993

Inadvertent exposure of early pregnancy to gonadotropin releasing hormone analogue.

Adrian Shulman; Michael Shilon; Charles Bahary; Jehoshua Dor; Adrian Ellenbogen; Shlomo Mashiach

Inadvertent Exposure of E a r l y P r e g n a n c y to G o n a d o t r o p i n Releasing Hormone Analogue dramatic improvement in the pregnancy rates per cycle, as well as per embryo transfer. Moreover, ovarian stimulation can be initiated independent of a definite time of menstruation or cycle with a greater flexibility in the timing of human chorionic gonadotropin (hCG) administration. Therefore, many IVF units routinely use GnRH-as before starting follicular recruitment. The strategy behind GnRH-a administration is that very small amounts of the drug are still present in the blood circulation after embryo transfer and during organogenesis. There are only a few cases in the literature where the GnRH-a was administered during organogenesis (2-4), and there is mounting concern over its potential effect on fetal development. At this stage of continuous, unhindered, and increasing use of the analogue, we believe that every case of longer and higher exposure to GnRH-a in the early stages of pregnancy should be reported in detail. We report on five infertile women (four from our IVF-ET program and one from our infertility clinic) who were accidentally exposed to the drug during organogenesis. We analyze the possible impact of the drug on luteal function and organogenesis and suggest a management method to prevent it.

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