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1.
Artigo em Inglês | MEDLINE | ID: mdl-37045689

RESUMO

High rates of multiple implantation after assisted reproductive technology (ART) treatment represent one of the major problems for both mothers and their fetuses. Given the availability of techniques intended to identify embryos with the highest chance for development to term, such as comprehensive chromosome screening (CCS) and blastocyst transfer, the decision on the number of embryos to transfer deserves careful consideration. This report presents real-life data from two clinics using the Fischer protocol for cycle programming in patients undergoing ART. Our data indicate that ovarian stimulation using the Fischer protocol provides consistent and optimal ART outcomes in centers following strict quality management standards. However, high multiple implantation rates were observed in fresh and frozen transfer cycles after transferring two embryos - even in patients aged over 39 years. The live birth rates after CCS were superior to those using untested embryos. These findings were held for the three age groups irrespective of the CCS culture day (D1 = PN stages, or D5 = blastocysts). Our results support a single embryo transfer policy, particularly in women under 34 years of age with favorable conditions during ART treatment, i.e., a high number of available fertilized oocytes.


Assuntos
Transferência Embrionária , Técnicas de Reprodução Assistida , Feminino , Humanos , Transferência Embrionária/métodos , Implantação do Embrião/fisiologia , Transferência de Embrião Único , Cromossomos
2.
Reprod Biol Endocrinol ; 7: 111, 2009 Oct 14.
Artigo em Inglês | MEDLINE | ID: mdl-19828024

RESUMO

BACKGROUND: Over the last several decades, as a result of an evolution in manufacturing processes, a marked development has been made in the field of gonadotropins for ovarian stimulation. Initially, therapeutic gonadotropins were produced from a simple process of urine extraction and purification; now they are produced via a complex system involving recombinant technology, which yields gonadotropins with high levels of purity, quality, and consistency. METHODS: A retrospective analysis of 865 consecutive intracytoplasmic sperm injection (ICSI) cycles of controlled ovarian hyperstimulation (COH) compared the clinical efficacy of three gonadotropins (menotropin [hMG; n = 299], highly-purified hMG [HP-hMG; n = 330] and follitropin alfa [r-hFSH; n = 236]) for ovarian stimulation after pituitary down-regulation. The endpoints were live birth rates and total doses of gonadotropin per cycle and per pregnancy. RESULTS: Laboratory and clinical protocols remained unchanged over time, except for the type of gonadotropin used, which was introduced sequentially (hMG, then HP-hMG, and finally r-hFSH). Live birth rates were not significantly different for hMG (24.4%), HP-hMG (32.4%) and r-hFSH (30.1%; p = 0.09) groups. Total dose of gonadotropin per cycle was significantly higher in the hMG (2685 +/- 720 IU) and HP-hMG (2903 +/- 867 IU) groups compared with the r-hFSH-group (2268 +/- 747 IU; p < 0.001). Total dose of gonadotropin required to achieve clinical pregnancy was 15.7% and 11.0% higher for the hMG and HP-hMG groups, respectively, compared with the r-hFSH group, and for live births, the differences observed were 45.3% and 19.8%, respectively. CONCLUSION: Although similar live birth rates were achieved, markedly lower doses of r-hFSH were required compared with hMG or HP-hMG.


Assuntos
Hormônio Foliculoestimulante Humano/uso terapêutico , Subunidade alfa de Hormônios Glicoproteicos/uso terapêutico , Menotropinas/uso terapêutico , Injeções de Esperma Intracitoplásmicas , Adulto , Feminino , Humanos , Infertilidade Masculina/terapia , Masculino , Menotropinas/isolamento & purificação , Gravidez , Resultado da Gravidez , Estudos Retrospectivos , Injeções de Esperma Intracitoplásmicas/métodos , Resultado do Tratamento , Ultrafiltração
3.
Rev. bras. ginecol. obstet ; 17(8): 787-90, set. 1995. tab
Artigo em Português | LILACS | ID: lil-164697

RESUMO

A adesao à TRH é um ponto crucial no tratamento de mulheres pós-menopausadas e climatéricas, já que os efeitos benéficos dos hormônios podem ser afetados ou mesmo perdidos se as mulheres nao mantiverem o tratamento. Apesar da relevância do assunto, poucas avaliaçoes têm sido realizadas neste sentido. O objetivo deste estudo foi avaliar o esquema de reposiçao hormonal e a adesao ao tratamento, no Ambulatório de Menopausa do CAISM/UNICAMP. Foi avaliado, retrospectivamente, o comportamento de 127 pacientes desta clínica diante da TRH durante o ano de 1992. A média etária das pacientes foi de 5O,6 anos (+ 7,4). O regime de reposiçao hormonal mais utilizado foi a associaçao de estrogênios e progestogênios de forma cíclica. A adesao à TRH nao foi afetada pelo tipo de esquema utilizado e foi considerada alta (86 por cento), talvez devido à assistência multiprofissional e à seleçao das pacientes, uma vez que, de 224 pacientes admitidas no Ambulatório, somente 127 (56,7 por cento) receberam TRH.


Assuntos
Humanos , Feminino , Adulto , Pessoa de Meia-Idade , Estrogênios Conjugados (USP)/uso terapêutico , Menopausa , Progestinas/uso terapêutico , Terapia de Reposição de Estrogênios , Pacientes Desistentes do Tratamento , Estudos Retrospectivos
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