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You searched for:"Nilka Fernandes Donadio"
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Revista Brasileira de Ginecologia e Obstetrícia. 2008;30(9):466-469
DOI 10.1590/S0100-72032008000900007
Heterotopic gestation, characterized by the presence of combined topic and ectopic gestation, until recently was considered to be a rare event occurring in 1:30,000 pregnancies. With the appearance of assisted reproduction techniques, this incidence increased to 1:100-500 gestations. Early diagnosis is difficult and frequently is made when the uterine tube has already ruptured. It's presented a case of heterotopic pregnancy diagnosed by means of a clinical presentation of hemorrhagic acute abdomen, with good progression of the topic gestation that resulted in birth. It's pointed out the importance of considering this pathology in the evaluation of women submitted to in vitro fertilization, with the objective of early treatment.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2008;30(9):466-469
DOI 10.1590/S0100-72032008000900007
Heterotopic gestation, characterized by the presence of combined topic and ectopic gestation, until recently was considered to be a rare event occurring in 1:30,000 pregnancies. With the appearance of assisted reproduction techniques, this incidence increased to 1:100-500 gestations. Early diagnosis is difficult and frequently is made when the uterine tube has already ruptured. It's presented a case of heterotopic pregnancy diagnosed by means of a clinical presentation of hemorrhagic acute abdomen, with good progression of the topic gestation that resulted in birth. It's pointed out the importance of considering this pathology in the evaluation of women submitted to in vitro fertilization, with the objective of early treatment.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2006;28(8):473-478
DOI 10.1590/S0100-72032006000800006
PURPOSE: to verify the effects of intrauterine levonorgestrel device (IUD) in women with adenomyosis, with implantation failure in previous in vitro fertilization (IVF) cycles. METHODS: eighty infertile women with ages up to 38 years, who had adenomyosis diagnosed by ultrasonography and MRI were selected. All the women presented antecedents of one or more tormer IVF attempts without success due to implantation failure. The women were subdivided into IUD Group, composed of 40 women with an IUD that released 20 µg of levonorgestrel/day during six months, preceding a new IVF cycle, and IVF Group, also composed of 40 women, who were directly submitted to a new IVF cycle without previous adenomyosis treatment. In the IUD Group the uterine volume, thickness and hypersignal foci of the junctional zone were assessed before and after treatment, as well as the pregnancy rates in the new IVF cycle, compared to the data obtained with the IVF Group. Statistical analyses were performed adopting the significance level of 5% (p<0,05), using the Mann-Whitney and Sudent's t tests. RESULTS: after treatment, there was a reduction of 77.7% in the cases of focal adenomyosis, in addition to a significant reduction of the uterine volume and of the mean thickness of the junctional zone from 128.8 to 93.6 ml and from 12.3 to 11.3 mm, respectively. In the IUD Group, pregnancy rate reached 30%, which was higher than, but not significantly different from that of the IVF group, which was 17.5%. CONCLUSION: the use of an IUD with levonorgestrel may be administered prior to IVF cycles in patients with adenomyosis who suffered previous implantation failure.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2006;28(8):473-478
DOI 10.1590/S0100-72032006000800006
PURPOSE: to verify the effects of intrauterine levonorgestrel device (IUD) in women with adenomyosis, with implantation failure in previous in vitro fertilization (IVF) cycles. METHODS: eighty infertile women with ages up to 38 years, who had adenomyosis diagnosed by ultrasonography and MRI were selected. All the women presented antecedents of one or more tormer IVF attempts without success due to implantation failure. The women were subdivided into IUD Group, composed of 40 women with an IUD that released 20 µg of levonorgestrel/day during six months, preceding a new IVF cycle, and IVF Group, also composed of 40 women, who were directly submitted to a new IVF cycle without previous adenomyosis treatment. In the IUD Group the uterine volume, thickness and hypersignal foci of the junctional zone were assessed before and after treatment, as well as the pregnancy rates in the new IVF cycle, compared to the data obtained with the IVF Group. Statistical analyses were performed adopting the significance level of 5% (p<0,05), using the Mann-Whitney and Sudent's t tests. RESULTS: after treatment, there was a reduction of 77.7% in the cases of focal adenomyosis, in addition to a significant reduction of the uterine volume and of the mean thickness of the junctional zone from 128.8 to 93.6 ml and from 12.3 to 11.3 mm, respectively. In the IUD Group, pregnancy rate reached 30%, which was higher than, but not significantly different from that of the IVF group, which was 17.5%. CONCLUSION: the use of an IUD with levonorgestrel may be administered prior to IVF cycles in patients with adenomyosis who suffered previous implantation failure.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2005;27(11):665-671
DOI 10.1590/S0100-72032005001100006
PURPOSE: to define the characteristics of unviable embryos that may be donated for stem-cell research. METHODS: a retrospective evaluation of in vitro fertilzation cycles between January 1995 and January 2005 was structured. Cycles were chosen in which the embryos transferred to the uterine cavity had the same morphological characteristics. Subsequently, the rates of pregnancy, implantation, and involution of the gestational sacs of the fresh embryos as well as of those cryopreserved were analyzed and distributed into groups according to their morphology. Embryos that were symmetric and with 0% of fragmentation were designated type A; asymmetric with up to 25% of fragmentation were designated type B; between 25 and 50% of volume occupied were designated type C, and those with 50% or more of fragmentation were designated type D. RESULTS: one hundred and seventy-two type D embryos transferred in 87 cycles presented low rates of implantation (11%) with 50% of those implanted persisting in development. Embryos with the same morphology, after cryopreservation and thawing, did not show the capacity to evolve. In 36 cycles, 113 thawed type D embryos were transferred, resulting in only one implantation, presenting a minute 3% pregnancy rate. The implanted gestational sac did not evolve, showing a 100% rate of involution. CONCLUSION: embryos with low morphological scores cannot be considered unviable because they are capable, even though with a very low frequency, of supporting gestation. However, these same embryos, after cryopreservation, thawing and transfer showed an insignificant rate of pregnancy, that did not result in viable pregnancy. Therefore, when in excess to requirements, type D embryos should not be cryopreserved; instead, rather than discarded, they should be donated for embryo stem-cell research.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2005;27(11):665-671
DOI 10.1590/S0100-72032005001100006
PURPOSE: to define the characteristics of unviable embryos that may be donated for stem-cell research. METHODS: a retrospective evaluation of in vitro fertilzation cycles between January 1995 and January 2005 was structured. Cycles were chosen in which the embryos transferred to the uterine cavity had the same morphological characteristics. Subsequently, the rates of pregnancy, implantation, and involution of the gestational sacs of the fresh embryos as well as of those cryopreserved were analyzed and distributed into groups according to their morphology. Embryos that were symmetric and with 0% of fragmentation were designated type A; asymmetric with up to 25% of fragmentation were designated type B; between 25 and 50% of volume occupied were designated type C, and those with 50% or more of fragmentation were designated type D. RESULTS: one hundred and seventy-two type D embryos transferred in 87 cycles presented low rates of implantation (11%) with 50% of those implanted persisting in development. Embryos with the same morphology, after cryopreservation and thawing, did not show the capacity to evolve. In 36 cycles, 113 thawed type D embryos were transferred, resulting in only one implantation, presenting a minute 3% pregnancy rate. The implanted gestational sac did not evolve, showing a 100% rate of involution. CONCLUSION: embryos with low morphological scores cannot be considered unviable because they are capable, even though with a very low frequency, of supporting gestation. However, these same embryos, after cryopreservation, thawing and transfer showed an insignificant rate of pregnancy, that did not result in viable pregnancy. Therefore, when in excess to requirements, type D embryos should not be cryopreserved; instead, rather than discarded, they should be donated for embryo stem-cell research.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2005;27(5):295-295
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2005;27(5):295-295