RESUMO
Good medical ethics should aim at ensuring that all human beings enjoy the highest attainable standard of health. With the development of medical technology and health services, it became necessary to expand the four basic principles of medical ethics and link them to human rights. Despite the claim of the universality of those ethical principles, their perception and application in healthcare services are inevitably influenced by the religious background of the societies in which those services are provided. This paper highlights the methodology and principles employed by Muslim jurists in deriving rulings in the field of medical ethics, and it explains how ethical principles are interpreted through the lens of Islamic theory. The author explains how, as a Muslim obstetrician-gynaecologist with a special interest in medical ethics, including international consideration of reproductive ethics issues, he attempts to 'practise good medical ethics' by applying internationally accepted ethical principles in various healthcare contexts, in ways that are consistent with Islamic principles, and he identifies the evidence supporting his approach. He argues that healthcare providers have a right to respect for their conscientious convictions regarding both undertaking and not undertaking the delivery of lawful procedures. However, he also argues that withholding evidence-based medical services based on the conscientious objection of the healthcare provider is unethical as patients have the right to be referred to services providing such treatment.
Assuntos
Atenção à Saúde/ética , Ética Médica , Islamismo , Princípios Morais , HumanosRESUMO
Sexual and reproductive rights of women are essential components of human rights. They should never be transferred, renounced or denied for any reason based on race, religion, origin, political opinion or economic conditions. Women have the right to the highest attainable standard of health care for all aspects of their reproductive and sexual health (RSH). The principle of autonomy emphasizes the important role of women in the decision-making. Choices of women in reproduction, after providing evidence based information, should be respected. Risks, benefits and alternatives should be clearly explained before they make their free informed consent. Justice requires that all be treated with equal standard and have equal access to their health needs without discrimination or coercion. When resources are limited there is tension between the principle of justice and utility. Islamic perspectives of bioethics are influenced by primary Sharia namely the Holy Quran, authenticated traditions and saying of the Profit Mohamed (PBUH), Igmaa and Kias (analogy). All the contemporary ethical principles are emphasized in Islamic Shariaa, thus these principles should be observed when providing reproductive and sexual health services for Muslim families or communities. The Family is the basic unit in Islam. Safe motherhood, family planning, and quality reproductive and sexual health information and services and assisted reproductive technology are all encouraged within the frame of marriage. While the Shiaa sect permits egg donation, and surrogacy the Sunni sect forbids a third party contribution to reproduction. Harmful practices in RSH as FGM, child marriage and adolescent pregnancy are prohibited in Islam. Conscientious objection to treatment should not refrain the physician from appropriate referral.
Assuntos
Direitos Humanos , Islamismo , Religião e Medicina , Saúde Reprodutiva , Medicina Reprodutiva/métodos , Feminino , Saúde Global , Humanos , Masculino , Saúde Reprodutiva/ética , Serviços de Saúde Reprodutiva/ética , Medicina Reprodutiva/ética , Técnicas Reprodutivas/efeitos adversos , Técnicas Reprodutivas/ética , Comportamento Sexual/ética , Serviços de Saúde da Mulher/ética , Direitos da Mulher/éticaRESUMO
Assisted reproductive technology is widely practised around the world for the treatment of virtually all forms of infertility. The application of this technology in the Islamic world had been delayed for many years, based on the misconception that Islamic teachings do not approve assisted reproduction. The paper discusses derivation of Islamic rulings and its impact on the ethics of contemporary issues, including family formation and assisted reproduction. It clearly shows that Islam encourages family formation and assisted reproduction, when indicated, within the frame of marriage. It also discusses differences among Muslim sects, Sunni and Shi'aa. The paper also discusses Islamic rulings on the new emerging practices in assisted reproduction, including surrogacy, multifetal pregnancy reduction, cryopreservation, pregnancy in the post-menopausal period, sex selection and embryo implantation following the husband's death. The moral status of the embryo in Islam is discussed. Organ differentiation and ensoulment are believed to occur at 42 days after fertilization at the earliest. As individuation of the embryo does not occur before 14 days from fertilization, research on surplus embryos during this period is allowed. Similarly, preimplantation genetic diagnosis, gene therapy and non-reproductive cloning for the benefit of humanity are ethically acceptable in Islam. This information should help physicians in their decision before conscientious objection to offering various modalities of assisted reproduction to their infertile patients.
Assuntos
Islamismo , Reprodução , Técnicas de Reprodução Assistida/ética , Clonagem de Organismos/ética , Criopreservação/ética , Feminino , Terapia Genética/ética , Humanos , Infertilidade/terapia , Masculino , Menopausa , Concepção Póstuma/ética , Gravidez , Redução de Gravidez Multifetal/ética , Religião e Medicina , Pré-Seleção do Sexo/ética , Mães Substitutas , Útero/transplanteRESUMO
Obstetricians and gynecologists at the FIGO pre-congress workshop on adolescents deliberated on their role as clinicians, educators and advocates in upholding young peoples' sexual and reproductive health rights. Comprehensive services to adolescents should include emergency contraception, safe abortion and also provide care for survivors of sexual violence. Key to successful access to youth friendly services consist of providers' attitudes and addressing consent, confidentiality, evolving capacities of young people and youth participation.
Assuntos
Serviços de Saúde do Adolescente/estatística & dados numéricos , Acessibilidade aos Serviços de Saúde , Educação Sexual/métodos , Adolescente , Adulto , Feminino , Saúde Global , Ginecologia , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Masculino , Organizações sem Fins Lucrativos/normasRESUMO
This paper contrasts ethical approaches to sex selection in countries where discrimination against women is pervasive, resulting in selection against girl children, and in countries where there is less general discrimination and couples do not prefer children of either sex. National sex ratio imbalances where discrimination against women is common have resulted in laws and policies, such as in India and China, to deter and prevent sex selection. Birth ratios of children can be affected by techniques of prenatal sex determination and abortion, preconception sex selection and discarding disfavored embryos, and prefertilization sperm sorting, when disfavored sperm remain unused. Incentives for son preference are reviewed, and laws and policies to prevent sex selection are explained. The elimination of social, economic and other discrimination against women is urged to redress sex selection against girl children. Where there is no general selection against girl children, sex selection can be allowed to assist families that want children of both sexes.
Assuntos
Ética Médica , Preconceito , Pré-Seleção do Sexo , Aborto Induzido , Feminino , Humanos , Masculino , Valores SociaisRESUMO
BACKGROUND: The traditional reliance on the transfer of multiple embryos during in vitro fertilisation (IVF) in order to maximise the chance of pregnancy, has resulted in increasing rates of multiple pregnancies. Women undergoing IVF had a 20 - fold increased risk of twins and 400 - fold increased risk of higher order pregnancies (Martin 1998). The maternal and perinatal morbidity and mortality as well as national health service costs associated with multiple pregnancies is significantly high in comparison with singleton births (Luke 1992; Callahan 1994; Goldfarb 1996). Single embryo transfer is now being considered as an effective means of reducing this iatrogenic complication. This systematic review evaluates the effectiveness of elective two embryo transfer in comparison with single and more than two embryo transfer following IVF and ICSI (intra cytoplasmic sperm injection) treatment. OBJECTIVES: The aim of this review is to determine, whether in couples who undergo IVF/ICSI: (1) the elective transfer of two embryos improves the probability of livebirth compared with: (a) Single embryo transfer, (b) Three embryo transfer or (c) Four embryo transfer.(2) the elective transfer of three embryos improves the probability of livebirth compared with: (a) Single embryo transfer, or (b) Four embryo transfer, SEARCH STRATEGY: We searched the Cochrane Menstrual Disorders and Subfertility Group's trials register (searched June 2003), the Cochrane Central Register of Controlled Trials (The Cochrane Library, Issue 4, 2003), MEDLINE (1970 to 2003), EMBASE (1985 to 2003) and reference lists of articles. We also handsearched relevant conference proceedings and contacted researchers in the field. SELECTION CRITERIA: Only randomised controlled trials were included. DATA COLLECTION AND ANALYSIS: Two reviewers independently assessed eligibility and quality of trials. MAIN RESULTS: We found no studies that compared a policy of transferring multiple embryos on one cycle versus a policy of cryo- preservation and transfer of a single embryo over multiple cycles. We also found no trials comparing transfer of two versus three embryos. Three small, poorly reported trials compared transfer of two versus one embryo in a single cycle, and one small, poorly reported trial compared transfer of two versus four embryos in a single cycle. The clinical pregnancy rate per woman/couple associated with two embryo transfer was significantly higher compared to single embryo transfer (OR 2.08, 95% CI 1.24 to 3.50; test for overall effect p = 0.006). The live birth rate per woman/couple associated with two embryo transfer was also significantly higher than that associated with single embryo transfer (OR 1.90, 95% CI 1.12 to 3.22, test for overall effect p=0.02). The multiple pregnancy rate was significantly lower in women who had single embryo transfer (OR 9.97, 95% CI 2.61 to 38.19; p = 0.0008). The effectiveness of double embryo transfer versus four embryo transfer was tested in a single trial. There was no statistically significant differences in the clinical pregnancy rate (OR 0.75, 95% CI 0.26 to 2.16; p=0.6), and multiple pregnancy rates (OR 0.44. 95% CI 0.10 to 1.97; p = 0.28) between the two groups. The livebirth rate in the four embryo transfer group was higher compared to the two embryo transfer group, but the results were not statistically significant (OR 0.35, 95% CI 0.11 to 1.05; p = 0.06). REVIEWERS' CONCLUSIONS: The results of this systematic review suggest that live birth and pregnancy rates following single embryo transfer are lower than those following double embryo transfer as are the chances of multiple pregnancy including twins. As such, it is unlikely that the conclusions are robust enough to catalyse a change in clinical practice. The studies included are limited by their small sample size, so that even large differences might be hidden. Cumulative livebirth rates are seldom reported. The data were inadequate to draw conclusions about single embryo transfer and first frozen single embryo transfer (1FZET) or subsequent single frozen embryo transfers. Until more evidence is available single embryo transfer may not be the preferred choice for all patients undergoing IVF/ICSI. Clinicians may need to individualise protocols for couples based on their risks of multiple pregnancy. A definitive pragmatic, large multi centre randomised controlled trial comparing single embryo versus double embryo transfer in terms of clinical and cost effectiveness as well as acceptability is required. The primary outcome measured should be cumulative livebirth per woman/couple.
Assuntos
Transferência Embrionária , Fertilização in vitro , Taxa de Gravidez , Transferência Embrionária/efeitos adversos , Feminino , Humanos , Gravidez , Gravidez Múltipla , Injeções de Esperma IntracitoplásmicasRESUMO
BACKGROUND: The aim of this study was to assess the use of testicular sperm for ICSI in azoospermic men with hypogonadotrophic hypogonadism unresponsive to gonadotrophin therapy. METHODS: Fifteen patients with hypogonadotrophic hypogonadism who remained azoospermic after hormonal treatment underwent testicular sperm extraction (TESE) and ICSI. These men were recruited from the Egyptian IVF centre over a period of 4 years. All patients were given 75 IU hMG thrice weekly and 5000 IU hCG once or twice weekly for >/=6 months prior to attempting ICSI/TESE. RESULTS: In 11 out of 15 patients (73%), sperm could be retrieved from testicular tissue and were used for ICSI. Two chemical pregnancies resulted but no clinical pregnancies. Nine patients continued gonadotrophin therapy for another 6 months. Sperm appeared in the ejaculate of three of them. The remaining six patients underwent another ICSI cycle, one using cryopreserved sperm and five underwent a second TESE. One chemical pregnancy and three clinical pregnancies were established. One ongoing, one singleton and one twin pregnancies resulted in the delivery of three healthy babies. In total, of 17 ICSI cycles performed using testicular sperm retrieval, the fertilization rate was 41.7% and the cumulative pregnancy rate was 20%. CONCLUSIONS: The use of testicular sperm for ICSI is a treatment option that can be offered to azoospermic males with hypogonadotrophic hypogonadism either not responding or reluctant to continue hormonal treatment. However, prolonged hormonal treatment may improve TESE/ICSI results.
Assuntos
Gonadotropinas/uso terapêutico , Hipogonadismo/tratamento farmacológico , Oligospermia/terapia , Injeções de Esperma Intracitoplásmicas , Espermatozoides , Testículo , Adulto , Coeficiente de Natalidade , Criopreservação , Ejaculação , Feminino , Humanos , Hipogonadismo/complicações , Masculino , Pessoa de Meia-Idade , Oligospermia/etiologia , Gravidez , Taxa de Gravidez , Reoperação , Retratamento , Preservação do Sêmen , Coleta de Tecidos e Órgãos , Falha de TratamentoRESUMO
This article presents findings and recommendations of an international conference held in Cairo, Egypt in 2003 concerning issues of ethical practice in how information is provided to and by medical practitioners. Professional advertising to practitioners and the public is necessary, but should exclude misrepresentation of qualifications, resources, and authorship of research papers. Medical institutions are responsible for how staff members present themselves, and their institutions. Medical associations, both governmental licensing authorities and voluntary societies, have powers and responsibilities to monitor professional advertisement to defend the public interest against deception. Medical journals bear duties to ensure authenticity of authorship and integrity in published papers, and the scientific basis of commercial advertisers' claims. A mounting concern is authors' conflict of interest. Mass newsmedia must ensure accuracy and proportionality in reporting scientific developments, and product manufacturers must observe truth in advertising, particularly in Direct-to-Consumer advertising. Consumer protection by government agencies is a continuing responsibility.
Assuntos
Publicidade/ética , Disseminação de Informação/ética , Órgãos Governamentais , Setor de Assistência à Saúde , Instalações de Saúde , Humanos , Jornalismo Médico , Meios de Comunicação de Massa , Publicações Periódicas como Assunto , Papel do Médico , Sociedades MédicasRESUMO
The effect of salpingectomy for unilateral hydrosalpinx with a contralateral normal tube was evaluated in two infertile patients in which unilateral hydrosalpinx, visualized by vaginal ultrasound, was treated by unilateral salpingectomy as a preparatory step before IVF. Spontaneous pregnancy occurred in both patients while waiting to be enrolled in an IVF trial. In conclusion, unilateral salpingectomy for hydrosalpinx in the presence of a contralateral healthy tube could result in spontaneous pregnancy.
Assuntos
Doenças das Tubas Uterinas/cirurgia , Tubas Uterinas/cirurgia , Gravidez , Adulto , Doenças das Tubas Uterinas/complicações , Feminino , Humanos , Infertilidade Feminina/etiologia , Período Pós-Operatório , Resultado do TratamentoRESUMO
A November 2000 workshop organized by the International Islamic Center for Population Studies and Research, Al-Azhar University, Cairo, considered use of assisted reproduction technologies (ART) in the Islamic world. The workshop reinforced a 1997 recommendation that a Standing Committee for Shari'a Medical Ethics be constituted to monitor and assess developments in ART practice. Among issues the workshop addressed were equitable access to services for infertile couples of modest means, and regulation of standards of equipment and personnel that ART centers should satisfy to gain approval to offer services. Acceptable uses of preimplantation genetic diagnosis were proposed, and follicular maturation research in animals, including in vitro maturation and in vitro growth of oocytes, was encouraged, leading to human applications. Embryo implantation following a husband's death, induced postmenopausal pregnancy, uterine transplantation and gene therapy were addressed and human reproductive cloning condemned, but cloning human embryos for stem cell research was considered acceptable.
Assuntos
Islamismo , Técnicas Reprodutivas , Animais , Ética Médica , Feminino , Terapia Genética , Acessibilidade aos Serviços de Saúde , Humanos , Masculino , Gravidez , Religião e MedicinaRESUMO
OBJECTIVE: To compare the karyotype of babies conceived through ICSI with that of naturally conceived babies. DESIGN: Prospective controlled study. SETTING: The Egyptian IVF-ET Center, Cairo, Egypt. PATIENT(S): Four hundred and thirty babies conceived through ICSI and 430 babies conceived naturally. INTERVENTION(S): ICSI and karyotyping. MAIN OUTCOME MEASURE(S): Abnormal karyotype. RESULT(S): Four hundred and thirty consecutive babies conceived through ICSI who were delivered in one hospital had 15 abnormal karyotypes (3.5%). Of the 15 babies, 7 were of female phenotype and 8 of male phenotype. Six babies had sex chromosome anomalies, 8 had autosomal anomalies, and 1 had combined sex chromosome and autosomal anomalies. A control group of 430 consecutive babies conceived naturally who were delivered in one hospital had no abnormal karyotype. The difference between the two groups was significant (P<.001). CONCLUSION(S): ICSI carries a small but significant increased risk of abnormal karyotyping to the offspring. This risk appears to be equally distributed between autosomal and sex chromosome anomalies.
Assuntos
Aberrações Cromossômicas/etiologia , Injeções de Esperma Intracitoplásmicas/efeitos adversos , Adulto , Aberrações Cromossômicas/genética , Transtornos Cromossômicos , Egito , Feminino , Humanos , Recém-Nascido , Cariotipagem , Masculino , Pessoa de Meia-Idade , Gravidez , Estudos Prospectivos , Aberrações dos Cromossomos Sexuais/etiologiaRESUMO
OBJECTIVE: To investigate the optimum number of cycles of controlled ovarian hyperstimulation and intrauterine insemination in the treatment of unexplained infertility. DESIGN: Observational prospective study. SETTING: In vitro fertilization embryo transfer center. PATIENT(S): Five hundred ninety-four couples with unexplained infertility. INTERVENTION(S): Controlled ovarian hyperstimulation (COH), intrauterine insemination (IUI), in vitro fertilization (IVF), and intracytoplasmic sperm injection (ICSI). MAIN OUTCOME MEASURE(S): Cycle fecundity. RESULT(S): One to 3 cycles of COH/IUI were performed in 594 patients (group A) undergoing 1,112 cycles (mean, 1.9 cycles/patient). Up to 3 further trials (cycles 4-6) of COH/IUI were then performed in 91 of these women (group B), a total of 161 cycles (mean, 1.8 cycles/patient). A historical comparison group C consisted of 131 patients with 3 failed cycles of COH/IUI who underwent 1 cycle of IVF and ICSI at our center. In group A, 182 pregnancies occurred, with a cycle fecundity of 16.4% and a cumulative pregnancy rate (PR) of 39.2% after the first 3 cycles. In group B, 9 pregnancies occurred in cycles 4-6, with a cycle fecundity of 5.6%, significantly lower than that of group A (P<.001). The cumulative PR rose to 48.5% by cycle 6, a further increase of only 9.3%. In the women undergoing IVF and ICSI in group C, 48 pregnancies occurred, with a cycle fecundity of 36.6% per cycle, significantly higher than that of group B (P<.001). CONCLUSION(S): In unexplained infertility, the cycle fecundity in the first three trials of COH and IUI was higher than in cycles 4-6, with a statistically significant difference. Patients should be offered IVF or ICSI if they fail to conceive after three trials of COH and IUI.
Assuntos
Infertilidade Feminina/terapia , Inseminação Artificial , Ovário/efeitos dos fármacos , Adulto , Feminino , Humanos , Hormônio Luteinizante/sangue , Gravidez , Estudos Prospectivos , Estimulação QuímicaAssuntos
Menotropinas/administração & dosagem , Menotropinas/farmacologia , Menstruação/efeitos dos fármacos , Síndrome de Hiperestimulação Ovariana/induzido quimicamente , Ovário/efeitos dos fármacos , Adulto , Gonadotropina Coriônica/administração & dosagem , Gonadotropina Coriônica/farmacologia , Estradiol/sangue , Feminino , Fertilização , Fertilização in vitro , Humanos , Idade Materna , Síndrome de Hiperestimulação Ovariana/prevenção & controle , Indução da Ovulação/efeitos adversos , Taxa de Gravidez , Fatores de Risco , Injeções de Esperma IntracitoplásmicasRESUMO
The surgical management of hydrosalpinges is a controversial subject. Chronic pathology of the fallopian tube with distal obstruction leads to the formation of a hydrosalpinx, and is associated with very poor pregnancy rates after surgery. In these cases, in-vitro fertilization has proved to be a much better alternative. However, several studies have shown that patients with hydrosalpinges have significantly lower pregnancy and implantation rates after in-vitro fertilization compared with patients with other forms of tubal damage. The exact mechanism by which the hydrosalpinx adversely affects in-vitro fertilization results is not yet fully understood. The value of performing a salpingectomy before in-vitro fertilization has been studied extensively. Currently, a clear benefit in salpingectomies has been proved for patients with ultrasonically visible hydrosalpinges.
Assuntos
Doenças das Tubas Uterinas/cirurgia , Doenças das Tubas Uterinas/complicações , Doenças das Tubas Uterinas/patologia , Tubas Uterinas/patologia , Tubas Uterinas/cirurgia , Feminino , Fertilização in vitro , Humanos , Infertilidade Feminina/etiologia , Gravidez , Falha de TratamentoRESUMO
Assisted zona hatching (AZH) has been used in IVF programmes for several years. Recently one group has reported successful pregnancies after transfer of zona-free blastocysts. The aim of our study was to evaluate outcomes after transfer of zona-free day 3 embryos. Two groups of women undergoing intracytoplasmic sperm injection (ICSI) were included in the study. Group A consisted of 52 women under the age of 40 years undergoing their first ICSI attempt. They were alternately randomized to receive zona-free embryos (27 women) and zona-intact embryos (25 women). The second group (group B) included 71 women with a poor prognosis, as defined by age 40 years or more, and/or at least two previous failed IVF/ICSI attempts. They were randomized in a 3:4 ratio (30 zona-free, 41 zona-intact). Acid Tyrode's solution was used to remove the zona pellucida before embryo transfer on day 3 after oocyte collection. The pregnancy rate in group A was not significantly improved when the zona pellucida was removed. However, in the poor prognosis group B, zona removal resulted in a significantly higher pregnancy rate when compared with controls (23 versus 7.3%). We conclude that complete removal of the zona pellucida can improve pregnancy rates in women with poor IVF/ICSI prognosis.
Assuntos
Transferência Embrionária/métodos , Injeções de Esperma Intracitoplásmicas/métodos , Adulto , Embrião de Mamíferos/fisiologia , Feminino , Humanos , Pessoa de Meia-Idade , Gravidez , Taxa de Gravidez , Gravidez Múltipla , Estudos Prospectivos , Soluções , Resultado do Tratamento , Zona PelúcidaRESUMO
OBJECTIVE: To investigate the possible role of vascular endothelial growth factor, interleukin-2, soluble interleukin-2 receptor alpha, interleukin-6 and soluble interleukin-6 receptor in the pathogenesis of ovarian hyperstimulation syndrome. STUDY DESIGN: The study group consisted of 10 healthy women who developed severe ovarian hyperstimulation syndrome, group A (n=10), following ovarian stimulation by long GnRHa/hMG protocol for IVF. A control group B=10 patients underwent stimulation with the same protocol and did not develop OHSS. Blood and ascitic fluid samples were assayed for VEGF, IL-2, sIL-2Ralpha, IL-6 and sIL-6R by ELISA. RESULTS: The mean serum levels of IL-2, sIL-2Ralpha, IL-6, sIL-6R and VEGF in OHSS group were 297.5+/-190, 6588+/-5566, 40.6+/-16.6, 5280+/-3326 and 492+/-165 pg/ml as compared to 50.8+/-17.4, 1100+/-391.6, 8.5+/-3.5, 516+/-342 and 167+/-31.3 pg/ml in the control group, respectively, P<0.001. The mean ascitic fluid IL-2, sIL-2Ralpha, IL-6, sIL-6R and VEGF in the OHSS group were 282.5+/-191.5 pg/ml, 26020+/-13 995, 90.5+/-36, 14900+/-2789 and 660+/-359 pg/ml as compared to 32+/-14.8, 1206+/-429.4, 12.6+/-1.7, 614+/-240 and 151+/-20.5 pg/ml, respectively, P<0.001. CONCLUSIONS: The significantly high levels of VEGF in patients with severe OHSS suggest that VEGF is a major capillary permeability agent in OHSS. Elevated levels of IL-6 in serum and peritoneal fluid support the hypothesis that IL-6 may serve as a marker of OHSS. Although serum and ascitic fluid levels of IL-2 were elevated, accumulating evidence does not support a pivotal role for IL-2 in the pathogenesis of OHSS. However, it may have a peripheral role in mediating an increase in vascular permeability. Soluble IL-2Ralpha and sIL-6R may be considered to be involved in OHSS. However, the patho-physiologic mechanism is the subject of further investigations. Clinical application of VEGF-receptors in the management of OHSS is awaited with interest.
Assuntos
Fatores de Crescimento Endotelial/análise , Interleucina-2/análise , Interleucina-6/análise , Linfocinas/análise , Síndrome de Hiperestimulação Ovariana/metabolismo , Receptores de Interleucina-2/análise , Receptores de Interleucina-6/análise , Adulto , Líquido Ascítico/química , Fatores de Crescimento Endotelial/sangue , Feminino , Humanos , Interleucina-2/sangue , Interleucina-6/sangue , Linfocinas/sangue , Síndrome de Hiperestimulação Ovariana/sangue , Receptores de Interleucina-2/sangue , Receptores de Interleucina-6/sangue , Valores de Referência , Solubilidade , Fator A de Crescimento do Endotélio Vascular , Fatores de Crescimento do Endotélio VascularRESUMO
We report the first 16 cases of a new sperm abnormality which we call 'easily decapitated spermatozoa defect'. This was discovered during intracytoplasmic sperm injection (ICSI) in couples with unexplained infertility. Semen analysis was normal, but minimal micromanipulation for ICSI resulted in decapitation of the spermatozoon during immobilization. For some oocytes the head and tail were injected separately, in others the intact sperm was injected after minimal immobilization. A fertilization rate of 47.5% was obtained using ICSI. Conventional in-vitro fertilization (IVF) on sibling oocytes (three cases) or in a previous cycle (three cases) resulted in total failure of fertilization. All patients reached the embryo transfer stage and three pregnancies resulted. Findings on electron microscopy in four cases included spermatozoa with degeneration or absence of the basal plate, abnormalities of the proximal centriole and degeneration of the midpiece with a large cytoplasmic droplet. We conclude that an occult sperm abnormality presenting as easily decapitated spermatozoa during ICSI could be a cause of unexplained infertility, as it resulted in total failure of fertilization in conventional IVF. Further research is necessary to investigate this sperm abnormality.
Assuntos
Infertilidade Masculina/etiologia , Cabeça do Espermatozoide , Espermatozoides/anormalidades , Adulto , Transferência Embrionária , Feminino , Fertilização in vitro , Humanos , Masculino , Microscopia Eletrônica , Gravidez , Cabeça do Espermatozoide/ultraestrutura , Injeções de Esperma Intracitoplásmicas , Espermatozoides/ultraestruturaRESUMO
OBJECTIVE: Our purpose was to evaluate a protocol for the management of long-standing unexplained infertility. STUDY DESIGN: A prospective study was conducted at an in vitro fertilization-embryo transfer center with 485 patients with the diagnosis of long-standing unexplained infertility. Patients were treated by means of controlled ovarian hyperstimulation and intrauterine insemination for a maximum of 3 cycles. Those who did not become pregnant underwent in vitro fertilization and intracytoplasmic sperm injection on sibling oocytes. RESULTS: Among 485 patients, 921 cycles of controlled ovarian hyperstimulation and intrauterine insemination were performed. The pregnancy rate was 15.7% per cycle and 29.8% per patient. Among those who did not become pregnant, 131 patients underwent in vitro fertilization and intracytoplasmic sperm injection into sibling oocytes; 48 women became pregnant (36.7%). There was total failure of the in vitro fertilization oocytes in 23 cycles (17.6%). CONCLUSION: Management of long-standing unexplained infertility with controlled ovarian hyperstimulation and intrauterine insemination resulted in a reasonable pregnancy rate. Treatment by means of in vitro fertilization and intracytoplasmic sperm injection into sibling oocytes among patients who did not become pregnant resulted in a good pregnancy rate. The overall results showed that the proposed protocol for management of unexplained infertility is satisfactory.
Assuntos
Infertilidade/terapia , Técnicas Reprodutivas , Transferência Embrionária , Feminino , Fertilização in vitro/métodos , Humanos , Inseminação Artificial Homóloga , Masculino , Microinjeções , Indução da Ovulação , Gravidez , Estudos Prospectivos , Resultado do TratamentoRESUMO
A simple, non-invasive method to retrieve spermatozoa from patients with anejaculation is described. Three patients with psychogenic primary anejaculation were referred for intracytoplasmic sperm injection (ICSI). On the day of oocyte retrieval, vigorous prostatic massage was done. Examination of the expressed prostatic secretion revealed a sufficient number of motile spermatozoa in cases 1 and 3. In case 1, only one poor quality oocyte was obtained and ICSI was unsuccessful. Spermatozoa were cryopreserved for future use. In case 2, no spermatozoa were retrieved by prostatic massage. A testicular biopsy was performed to retrieve spermatozoa for ICSI. Unfortunately no pregnancy resulted. In case 3, retrieved spermatozoa were successfully used for ICSI, and 19 ova were injected. Fertilization occurred in 10 of these; seven were cryopreserved and three embryos were transferred. Ultrasound scan has confirmed a singleton pregnancy, which is ongoing. We conclude that vigorous prostatic massage could be an effective method of sperm retrieval for assisted conception in selected patients with anejaculation.