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Biomedical subjects

M Goldenberg

Publications and source records attributed to M Goldenberg.

At least 73 records · Page 4Linked to original sources

Methotrexate therapy of tubal pregnancy.

Reports of successful treatment of ectopic pregnancies by administration of methotrexate have recently attracted a great deal of attention. This review summarizes the results of therapy with methotrexate in tubal pregnancy. Different technical approaches and pharmacological doses have been reported. These methods, however, present various problems, including the occurrence of toxicity, long therapeutic periods and treatment failure. With proper selection of patients, a success rate of approximately 90% has been achieved. Preliminary assessment of subsequent fertility provides promising results. However, the majority of the reports do not include controls.

Chorionic Gonadotropin↗

Seasonal patterns in tubal pregnancy.

An investigation of possible seasonal patterns in ectopic tubal pregnancies was conducted. The computer data utilized were based on all ectopic pregnancies, abortions and deliveries (total pregnancies) recorded in the Department of Obstetrics and Gynecology at the Chaim Sheba Medical Center, Israel, between the years 1986 and 1989. Composite monthly cohorts of ectopic tubal pregnancies and total pregnancies were constructed for each month of the year, and the probability of an ectopic pregnancy was estimated. A statistically significant increase in the probability of conception rate resulted in ectopic pregnancies which occurred during winter and spring, especially in January to June. The probability of ectopic tubal pregnancies was low (0.50%) in September and high (1.81-1.42%) in December to January. When we studied primigravidae, the same seasonal pattern was observed. The findings of our study suggest, for the first time, that there is an association between meteorological and environmental factors, and ectopic pregnancies. These factors should be considered in the epidemiology of ectopic tubal pregnancies.

Analysis of Variance↗

Transvaginal duplex Doppler ultrasonography in bleeding patients suspected of having residual trophoblastic tissue.

OBJECTIVE: To evaluate the diagnostic accuracy and clinical usefulness of high-resolution transvaginal duplex Doppler ultrasound in postpartum and post-abortion patients with excessive hemorrhage who are suspected of having residual trophoblast. METHODS: Forty-eight women with excessive hemorrhage referred for possible residual trophoblastic tissue were evaluated by transvaginal duplex Doppler ultrasonography. Based on two-dimensional imaging, the patients were divided prospectively into groups: women who had an empty uterus with a normal uterine cavity, those with a pure endometrial fluid collection and no echogenic foci, those who had a mixed endometrial fluid collection with foci of echogenicity, and those with intracavitary heterogeneous material with mixed echo patterns of fluid and solid components. In each group, Doppler studies were performed and the resistance index (RI) was calculated. The two-dimensional patterns and Doppler results were correlated with clinical and pathologic follow-up. RESULTS: Twenty-eight subjects had a normal uterine cavity and seven had a pure endometrial fluid collection; all were treated conservatively and none showed later clinical evidence of residual trophoblastic tissue. In 13 women, residual trophoblast was strongly suggested from the images of two-dimensional ultrasonography: Five showed an endometrial fluid collection with some echogenic foci, and eight exhibited intracavitary mixed echogenic material. All underwent curettage, and residual trophoblastic tissue was found in ten of the 13. The mean (+/- standard deviation) RI to flow in the myometrial arteries was 0.54 +/- 0.15 in women without residual trophoblast and 0.35 +/- 0.1 in those with residual trophoblastic tissue (P < .01). CONCLUSION: Our experience suggests that transvaginal duplex Doppler ultrasonography is an effective noninvasive method for evaluating patients with excessive postpartum and post-abortion hemorrhage who are suspected of having residual trophoblastic tissue. Its use enhances the positive preoperative diagnosis of residual trophoblastic tissue and may reduce unnecessary curettage procedures.

Abortion, Spontaneous↗

Unsuccessful methotrexate treatment of a tubal pregnancy with a live embryo.

Two cases with unsuccessful local and systemic methotrexate (MTX) therapy of tubal pregnancy with fetal heart rate activity are reported. The three modes of therapy, the first with local potassium chloride solution injection, the second with local MTX injection, and the third with systemic MTX injection, failed in the resolution of viable ectopic pregnancy. Therapy of MTX in cases of tubal pregnancy with demonstrable fetal heart rate beats, should be reconsidered.

Adult↗

Treatment of interstitial pregnancy with methotrexate via hysteroscopy.

We present a case in which treatment of interstitial pregnancy with local MTX administration was performed successfully through hysteroscopic vision, without the need to operate. Decreased gestational sac dimension and increased or low beta-hCG level ( < 1,400 mIU/mL) facilitates the success rate. The follow-up showed disappearance of the gestational sac and decrease of beta-hCG levels to < 10 mIU/mL. We conclude that local MTX administration via hysteroscopy after tubal ostium visualization is feasible. The procedure should be considered in women during the reproductive age, especially in rare cases of interstitial pregnancy.

Adult↗

Sperm attraction to a follicular factor(s) correlates with human egg fertilizability.

Spermatozoa normally encounter the egg at the fertilization site (in the Fallopian tube) within 24 hr after ovulation. A considerable fraction of the spermatozoa ejaculated into the female reproductive tract of mammals remains motionless in storage sites until ovulation, when the spermatozoa resume maximal motility and reach the fertilization site within minutes. The nature of the signal for sperm movement is not known, but one possible mechanism is attraction of spermatozoa to a factor(s) released from the egg. We have obtained evidence in favor of such a possibility by showing that human spermatozoa accumulate in follicular fluid in vitro. This accumulation into follicular fluid was higher by 30-260% than that observed with buffer alone and was highly significant (P less than 10(-8)). Not all of the follicular fluids caused sperm accumulation; however, there was a remarkably strong correlation (P less than 0.0001) between the ability of follicular fluid from a particular follicle to cause sperm accumulation and the ability of the egg, obtained from the same follicle, to be fertilized. These findings suggest that attraction may be a key event in the fertilization process and may give an insight into the mechanism underlying early egg-sperm communication.

Chemotaxis↗

Hysteroscopy in a program of in vitro fertilization.

Two hundred twenty-four women underwent hysteroscopic evaluation without anesthesia after at least two failed attempts of in vitro fertilization and embryo transfer. One hundred fifty-three (68%) women were diagnosed as having mechanical infertility, and abnormal hysteroscopic findings were observed in 32 (21%). Forty-one women were diagnosed as having unexplained infertility (18%) and six (15%) had abnormal findings with hysteroscopy. Of the 30 couples who entered the in vitro fertilization regimen program because of male infertility, 4 (13%) had abnormal findings. The overall rate of abnormal findings was 19%; cervical canal and intrauterine abnormalities were found in 10 and 32 patients, respectively. Ten patients were treated during hysteroscopic evaluation procedure, and four patients subsequently underwent operative hysteroscopy under general anesthesia. We suggest that diagnostic hysteroscopy should be a routine procedure before in vitro fertilization and embryo transfer therapy.

Adult↗

Prediction of pregnancy-induced hypertension by a combination of rollover test and Doppler flow velocity measurement.

Following a rollover test performed in 306 nulliparous women in the 28th gestational week, Doppler flow velocity studies were conducted in all 34 women with positive rollover findings and in 67 women selected at random from those with negative findings. The mean systolic diastolic ratios in both the uterine and the umbilical arteries were significantly higher in women with positive rollover findings than in the control group. A review of the patients' medical records after delivery, indicated that this combined two-stage screening approach--a rollover test followed by a Doppler flow study--improved the predictive value and the sensitivity of the screening procedure from 35% and 39% respectively for the rollover test alone, to 56% and 50% with no decline in specificity. The sensitivity of the Doppler flow test as a single one among the 101 flow-studied women was higher--61%. However, broader studies are needed in order to establish its superiority as a single test for early prediction of pregnancy-induced hypertension.

Adult↗

Adnexal torsion of hyperstimulated ovaries in pregnancies after gonadotropin therapy.

A series of 201 cycles of ovarian hyperstimulation syndrome (OHSS) in 154 women were reviewed. Pregnancy occurred in 75 of 201 cycles. Twelve pregnant women (16%) presented with torsion of hyperstimulated ovary, but only 3 out of 126 patients (2.3%) who did not conceive had torsion. Because diagnosis of adnexal torsion is usually uncertain and surgical intervention is likely to be delayed, these infertile women risk losing their ovaries. The clinical picture of torsion of adnexa in patients with OHSS is presented here. The combination of ovarian enlargement, abdominal pain, nausea, progressive leukocytosis, and anemias might indicate torsion of adnexa. Although during operation the adnexa appears dark, hemorrhagic and ischemic, we suggest that it can be saved by simply unwinding it. In 11 such cases intraoperative unwinding of the adnexa was performed, and in 8 patients it was the only operative procedure. No postoperative complications were noted and in all the cases the ovaries were proven functional by ultrasonography. We concluded that torsion of hyperstimulated adnexa in patients who conceived after gonadotropin therapy, is a special entity that requires more attention to achieve early diagnosis. Nevertheless even with delayed diagnosis, the ovary can still be saved.

Adnexal Diseases↗

The use of aspirin to prevent pregnancy-induced hypertension and lower the ratio of thromboxane A2 to prostacyclin in relatively high risk pregnancies.

We carried out a prospective, randomized, double-blind, placebo-controlled study to investigate the capacity of aspirin to prevent pregnancy-induced hypertension and to alter prostaglandin metabolism. A total of 791 pregnant women with various risk factors for pre-eclamptic toxemia were screened with use of the rollover test (a comparison of blood pressure before and after the woman rolls from her left side to her back) during week 28 or 29 of gestation. Of 69 women with abnormal results (an increase in blood pressure during the rollover test), 65 entered the study and were treated with a daily dose of either aspirin (100 mg; 34 women) or placebo (31 women) during the third trimester of pregnancy. The number of women in whom pregnancy-induced hypertension developed was significantly lower among the aspirin-treated than among the placebo-treated women (4 [11.8 percent] vs. 11 [35.5 percent]; P = 0.024); the same was true for the incidence of preeclamptic toxemia (1 [2.9 percent] vs 7 [22.6 percent]; P = 0.019). The mean ratio of serum levels of thromboxane A2 to serum levels of prostacyclin metabolites after three weeks of treatment decreased by 34.7 percent in the aspirin-treated group but increased by 51.2 percent in the placebo-treated group. No serious maternal or neonatal side effects of treatment occurred in either group. We conclude that low daily doses of aspirin taken during the third trimester of pregnancy significantly reduce the incidence of pregnancy-induced hypertension and pre-eclamptic toxemia in women at high risk for these disorders, possibly through the correction of an imbalance between levels of thromboxane and prostacyclin.

Adult↗

Pituitary and ovarian suppression rate after high dosage of gonadotropin-releasing hormone agonist.

Ten infertile menstruating women were treated with daily injections of gonadotropin-releasing hormone agonist (GnRH-a). The GnRH-a (Buserelin; Hoe 766, Hoechst-AG, Frankfurt/Main, West Germany) was administered subcutaneously (SC) from day 9 of the cycle for 6 days, and intranasally (1.2 mg) for 15 days. Before treatment, all ten women had a normal response to Buserelin challenge test and the GnRH test, and seven of the ten responded to estradiol (E2) benzoate test (2 mg intramuscularly). The SC administration of Buserelin (1.5 mg) for 6 days resulted in suppression of pituitary activity. Continuous treatment with Buserelin (1.2 mg for 3 weeks) was effective as demonstrated by decreasing serum E2 levels to below 20 pg/ml, and in the absence of ovarian follicles in ultrasonographic scanning. Three days after cessation of Buserelin treatment, the pituitary again responded to the GnRH test. Thus, the authors concluded that the administration of Buserelin in very high doses can induce medical hypophysectomy within 6 days, but over 3 weeks of suppression therapy are required to abolish ovarian findings. Desensitization of the pituitary was reversible within 3 days of cessation of the treatment.

Adult↗

Selective reduction in multiple gestations: pregnancy outcome after transvaginal and transabdominal needle-guided procedures.

Selective fetal reduction was performed in the first trimester of pregnancy in 20 women with multifetal gestations after ovulation induction with human menopausal gonadotropin (hMG). In 10 women (group A) reduction was performed transabdominally, and in 10 women (group B) the transvaginal approach was used. The transvaginal technique achieved penetration of several gestational sacs without withdrawing the needle from the uterus. Fetal termination using either procedure occurred with intrafetal injection of potassium chloride. Six (60%, group A) and eight (80%, group B) patients delivered healthy newborns. One patient (group B) is at 30 weeks' gestation. Four (40%, group A) and one (10%, group B) aborted 1 day to 8 weeks after the procedure (1 septic abortion, each group). Our results suggest that transvaginal fetal reduction offers a better outcome, with minimal complications, to patients referred for selective continuation of pregnancy.

Abdomen↗

Comparison of five clomiphene citrate dosage regimens: follicular recruitment and distribution in the human ovary.

One hundred fifty-six women with cycle disorders presenting as absence or infrequency of ovulation and with luteal phase deficiency (group II, according to the World Health Organization classification) received clomiphene citrate (CC) for ovulation induction. The administered dosage ranged from 50 to 250 mg/d. The follicular development in terms of numbers of small (less than 8 mm), intermediate (9 to 15 mm), and large (greater than 15 mm) follicles and their distribution in either one or both ovaries on the day of assumed ovulation was related to the dosage of CC. A statistically significant increase was found in the total number of follicles in relation to the dosage of CC (P less than 0.003). In view of the development of the mature follicles, the gradual increase in CC daily dosage was thought to be associated with additional mature follicles before ovulation. However, this increased follicular recruitment was not regarded as statistically significant. Treatment with low doses of CC resulted in follicular development in only one ovary, whereas increased follicular recruitment after high CC dosage was found in association with follicular development in both ovaries.

Clomiphene↗

Pregnancy outcome after unwinding of twisted ischaemic-haemorrhagic adnexa.

Six women who became pregnant after human menopausal gonadotrophin/human chorionic gonadotrophin (hMG/hCG) treatment regimens were operated on between 6 and 21 weeks gestation with an intra-operative diagnosis of twisted ischaemic-haemorrhagic adnexa. During operation unwinding of the adnexa was performed in all patients. Monitoring of the pregnancy before and after operation by ultrasonography was normal. The postoperative period and the rest of the pregnancy were uneventful. Three women were delivered normally at term. One patient was delivered by caesarean section because of twin pregnancy with malpresentation, and two pregnancies are still ongoing beyond the first trimester. This preliminary study suggests that detorsion of ischaemic-haemorrhagic adnexa during pregnancy is an option that is not associated with subsequent complications. This approach might be adopted relatively safely when preservation of future fertility is a goal.

Adnexa Uteri↗

Management of labor in patients with idiopathic thrombocytopenic purpura.

Transient thrombocytopenia may occur in infants born to mothers with idiopathic thrombocytopenic purpura, suggesting transplacental passage of the antiplatelet factor. Labor in women with idiopathic thrombocytopenic purpura calls for a special management. Irrespective of the maternal platelet count, we believe that labor should be conducted vaginally but reassessed after a thrombocyte count of fetal scalp blood. Maternal thrombocytopenia, which may indicate a possible risk of coagulopathy, should be treated aggressively and followed up with replacement therapy. Percutaneous umbilical sampling is to be avoided because it carries an immediate risk of fetal and maternal complications. A count of 50,000/mm3, obtained early during the course of labor, may be taken as a threshold indicator for abdominal delivery via cesarean section.

Blood Platelets↗