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1.
Artigo em Inglês | MEDLINE | ID: mdl-38693698

RESUMO

INTRODUCTION: Uterus transplantation has revolutionized reproductive medicine for women with absolute uterine factor infertility, resulting in more than 40 reported successful live births worldwide to date. Small animal models are pivotal to refine this surgical and immunological challenging procedure aiming to enhance safety for both the mother and the child. MATERIAL AND METHODS: We established a syngeneic bicornuate uterus transplantation model in young female Lewis rats. All surgical procedures were conducted by an experienced and skilled microsurgeon who organized the learning process into multiple structured steps. Animals underwent meticulous preoperative preparation and postoperative care. Transplant success was monitored by sequential biopsies, monitoring graft viability and documenting histological changes long-term. RESULTS: Bicornuate uterus transplantation were successfully established achieving an over 70% graft survival rate with the passage of time. The bicornuate model demonstrated safety and feasibility, yielding outcomes comparable to the unicornuate model in terms of ischemia times and complications. Longitudinal biopsies were well-tolerated, enabling comprehensive monitoring throughout the study. CONCLUSIONS: Our novel bicornuate rat uterus transplantation model provides a distinctive opportunity for sequential biopsies at various intervals after transplantation and, therefore, comprehensive monitoring of graft health, viability, and identification of potential signs of rejection. Furthermore, this model allows for different interventions in each horn for comparative studies without interobserver differences contrary to the established unicornuate model. By closely replicating the clinical setting, this model stands as a valuable tool for ongoing research in the field of uterus transplantation, promoting further innovation and deeper insights into the intricacies of the uterus transplant procedure.

2.
Ginekol Pol ; 2024 May 08.
Artigo em Inglês | MEDLINE | ID: mdl-38717225

RESUMO

OBJECTIVES: The aim of the study was to find out what proportion of women with MRKHS have decided to become mothers and have children or would like to have children and consider various options for motherhood. Additionally, the survey aimed at identifying factors that might influence the women's decisions and opinions regarding adoption, gestational surrogacy (GS) and uterus transplantation (UTx). MATERIAL AND METHODS: The study group consisted of 100 adult women with MRKHS who filled out questionnaires consisting of 56 questions. The survey was self-administered and anonymous. RESULTS: Most of the study participants were under 30, lived in large cities (> 150 000 inhabitants) and declared to be heterosexuals in a steady relationship (p < 0.05). While 11 participants had children, 66 out of 89 childless women (74%) expressed a desire for motherhood, but as many as 80 surveyed women have felt pressured to have children. The number of participants for whom a biological relationship with offspring was significant and insignificant respectively equaled (p = 1.000). The majority of the study participants supported the process of legalizing GS in Poland (95 vs 4) yet would opt for commercial rather than altruistic GS (64 vs 31) (p < 0.05). Most respondents stated that UTx is consistent with their faith and conscience (91 vs 4) and found UTx ethical (88 vs 4) (p < 0.0001). CONCLUSIONS: The majority of Polish women with MRKHS express the need to become a mother, but only one in ten has a child. The women's interest in biological motherhood is significant.

3.
Proc (Bayl Univ Med Cent) ; 37(3): 373-380, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38628325

RESUMO

Uterus transplantation (UTx) has evolved from a purely experimental procedure to a clinical treatment option available outside the clinical trial context, offering women with absolute uterine-factor infertility an opportunity to experience pregnancy. As UTx becomes better established and more widely known and performed, it is likely to be sought out by geographically and culturally diverse patients, particularly those whose religious beliefs impose barriers to other paths to achieve parenthood, such as gestational surrogacy and adoption. Many religions do not currently have official positions on UTx, meaning that clinicians involved in screening candidates can expect questions about how the UTx process aligns with various religious beliefs. This article provides a broad background on the current positions major world religions have taken on UTx (or its components) and the alternative paths to parenthood of gestational surrogacy and adoption. It is intended to help clinicians communicate the information necessary for individuals interested in uterus donation or transplantation to determine-in consultation with their spiritual advisors or religious authorities when needed-how these options align with religious beliefs or teachings.

4.
Hum Reprod ; 39(1): 74-82, 2024 Jan 05.
Artigo em Inglês | MEDLINE | ID: mdl-37994646

RESUMO

STUDY QUESTION: Do characteristics of the lower uterine segment and cervix modify the risk of preterm delivery in uterus transplant (UTx) recipients? SUMMARY ANSWER: The cervical length showed little association with preterm delivery, however, cervical inflammation deserves further exploration as a cause of preterm delivery. WHAT IS KNOWN ALREADY: UTx recipients do not have the risk factors normally used to stratify pregnancies that would benefit from cervical length assessment. In addition, unique factors related to absent tissues, a different blood supply, inflammatory processes of rejection, cervical biopsies, and a different microbiome challenge the normal progressive remodeling of the cervix and thus cervical competence. STUDY DESIGN, SIZE, DURATION: This is a subanalysis of a clinical trial of 20 women undergoing uterus transplantation at Baylor University Medical Center from 2016 to 2020, in addition to two women who received transplantation outside of a research protocol at our institution through September 2022. In this report, the first 16 UTx recipients that achieved live birth are included. PARTICIPANTS/MATERIALS, SETTING, METHODS: The focus of this study was 20 pregnancies that reached the second trimester in 16 women following UTx. We analyzed recipient, transplant, and donor factors to determine if characteristics were associated with delivery outcome. We compared obstetrical outcomes, including planned versus unplanned delivery, by factors such as number of superior venous anastomoses, warm ischemia and cold ischemia times, donor factors including cesarean sections, cervical biopsy results, and cervical ultrasound results. MAIN RESULTS AND THE ROLE OF CHANCE: Planned term deliveries occurred in 44% (8/18) of live births. Of the preterm births, 30% (3/10) were planned and 70% (7/10) were unplanned. Unplanned deliveries occurred in women with spontaneous preterm labor, severe rejection, subchorionic hematoma, and placenta previa. Cervical length in UTx recipients averaged 33.5 mm at 24 weeks and 31.5 mm at 28 weeks, comparable to values from the general population. No relationship was seen between delivery outcome and number of veins used, ischemic time, or number of previous cesarean sections. LIMITATIONS, REASONS FOR CAUTION: The study's small size allows limited conclusions. The obstetric history of all donors was limited to mode of delivery. WIDER IMPLICATIONS OF THE FINDINGS: Cervical length measurements in the UTx population are not expected to deviate from those with a native uterus. While cervical length surveillance remains important, attention must be paid to the results of cervical biopsies which are obtained to monitor rejection. Inflammatory processes seem most predictive of preterm delivery. STUDY FUNDING/COMPETING INTEREST(S): No funding was provided for this study. The authors report no conflicts of interest. TRIAL REGISTRATION NUMBER: NCT02656550.


Assuntos
Nascimento Prematuro , Feminino , Humanos , Recém-Nascido , Gravidez , Colo do Útero/diagnóstico por imagem , Nascimento Prematuro/etiologia , Fatores de Risco , Transplantados , Útero/diagnóstico por imagem
5.
J Law Biosci ; 10(2): lsad027, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37942083

RESUMO

A growing body of literature examines the ethico-legal challenges resulting from novel forms of assisted gestation like uterus transplantation and artificial placentas (also known as 'artificial wombs'). However, there has not yet been consideration of reproductive rights organizations/advocates' understandings of novel forms of assisted gestation and their challenges. These perspectives provide critical insight into how novel procreative practices are understood and the problems and pressures that might arise from their use. This is the first legal article to engage with reproductive rights organizations/advocates and thus it provides important contextual grounding to existing scholarship about assisted gestation. Focus group discussion epitomized the need for legal reform in key areas surrounding reproduction. Themes were constructed that exemplify what participants highlighted as critical: the need to re-evaluate the fundamentals of legal parenthood, consideration of how novel technologies could further enable the policing of gestation, and the space and time needed for law-making.

6.
J Gynecol Obstet Hum Reprod ; 52(10): 102674, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37805077

RESUMO

OBJECTIVE: To better understand patients' conditions and expectations before starting a uterus transplantation (UTx) program for women suffering from Mayer-Rokitansky-Küster-Hauser syndrome (MRKH syndrome). METHOD: A web-based survey was conducted among MRKH patients via the French national association network from March to August 2020. The questionnaire comprised twenty-eight questions about their desire for parenthood, their condition's characteristics and previous reconstructive procedures, opinions and knowledge about UTx. RESULTS: Among the 148 participants, 88 % reported a desire for parenthood, and 61 % opted for UTx as their first choice to reach this aim. The possibility of bearing a child and having the same genetic heritage were the main motivations. Once informed about the usual course of an UTx protocol, only 13 % of the participants changed their mind and 3 out of 4 of them opted for UT. CONCLUSION: Uterus transplantation seems to be the first option to reach motherhood in patients suffering from MRKH syndrome. The development of UTx programs could meet the demands of this already well-informed population.


Assuntos
Transtornos 46, XX do Desenvolvimento Sexual , Motivação , Criança , Humanos , Feminino , Útero , Transtornos 46, XX do Desenvolvimento Sexual/cirurgia , Ductos Paramesonéfricos/cirurgia
7.
Artigo em Inglês | MEDLINE | ID: mdl-37901926

RESUMO

AIMS: To evaluate the 3-year follow-up results of two children delivered at our institution in 2019 from mothers with a transplanted uterus. METHODS: Observational data on pregnancy outcomes, neonatal course, and growth trajectory in two children born to mothers after uterus transplantation, including 3-year follow-up and neurodevelopmental status assessed using the Bayley Scales of Infant and Toddler Development, third edition (Bayley-III). RESULTS: Both children were born prematurely via uneventful caesarean sections, to mothers with Mayer-Rokitansky-Küster-Hauser syndrome and a transplanted uterus. An acute caesarean section was performed in one mother because of the onset of regular uterine contractions at 34 weeks and 6 days of pregnancy; in the other mother, an elective caesarean section was performed at 36 weeks and 2 days of gestation. The children were born healthy with no congenital malformations. They had an uneventful postnatal course and showed a normal growth trajectory during 3 years of follow-up. The Bayley-III neurodevelopmental scores of both children were within the normal ranges at ages 2 and 3 years. CONCLUSION: Though pregnancy after uterus transplantation is associated with the risk of premature delivery, no abnormalities were observed in the neonatal course and 3-year follow-up results, including the neurodevelopmental status, of two children born prematurely to mothers with a transplanted uterus. This is the first report on neurodevelopmental outcomes in children born after uterus transplantation. More data on children born after this radical procedure of uterine factor infertility treatment are required to support our promising results.


Assuntos
Cesárea , Infertilidade Feminina , Recém-Nascido , Lactente , Humanos , Gravidez , Feminino , Cesárea/efeitos adversos , Seguimentos , Útero/transplante , Mães
8.
J Gynecol Obstet Hum Reprod ; 52(10): 102684, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37866776

RESUMO

INTRODUCTION: Uterine infertility (UI) is defined as the complete absence of a uterus (absolute uterine infertility or AUI) or the presence of a non functional uterus (non-absolute uterine infertility or NAUI). The exact prevalence of uterine infertility is currently unknown. Our aim was to assess the number of French women concerned by Uterine Infertility according to a recent literature review. MATERIALS AND METHODS: We have previously conducted a systematic review of the literature on UI and its various causes in the world. Based on these study and demographic data of 2022 from INSEE (Institut National de la Statistique et des Études Économiques), we attempted to estimate the number of women under 40 years of age in France affected by potential UI using direct standardization. RESULTS AND DISCUSSION: Based on the estimation from INSEE data, approximately 2066 women of childbearing age would have MRKH syndrome in France, 380 the Androgen Insensitivity Syndrome and 3700 had an haemostasis hysterectomy in France. We did not find data on the prevalence of hysterectomies before the age of 40 in France. For the following pathologies: uterine malformations, radiation uterus, synechiae, myomas and adenomyosis there was a huge amount of missing data, which does not allow us to estimate the number of potentially infertile patients. CONCLUSION: Prevalence of UI is poorly known. UI probably concerns several thousand patients in France. The creation of a UI registry would make enable to assess the number of patients potentially eligible for adoption, uterus transplantation or even surrogacy.


Assuntos
Infertilidade Feminina , Anormalidades Urogenitais , Masculino , Humanos , Feminino , Infertilidade Feminina/epidemiologia , Infertilidade Feminina/etiologia , Prevalência , Útero/anormalidades , França/epidemiologia
9.
J Clin Med ; 12(20)2023 Oct 11.
Artigo em Inglês | MEDLINE | ID: mdl-37892602

RESUMO

Recipients of uterus transplantation have unique factors that may increase their risk of cervical insufficiency. This report describes a uterus transplant recipient with cervical insufficiency resulting in two second-trimester miscarriages. After McDonald cerclages (one that failed), she underwent an interval transabdominal cerclage and delivered a healthy term child in her third pregnancy. The longitudinal information of this case provides observations from which we can propose testable hypotheses that address venous outflow and inflammation. This case also suggests that there could be a role for prophylactic cerclage placement at the time of transplantation.

10.
Fertil Steril ; 120(6): 1259-1261, 2023 12.
Artigo em Inglês | MEDLINE | ID: mdl-37660880

RESUMO

OBJECTIVE: To describe the feasibility of hypothermic machine perfusion (HMP) in uterus transplantation (UT) to potentially improve the preservation of the uterus and enhance graft preservation in the donation after brainstem death (DBD) context. Uterus transplantation is a new surgical approach to treating absolute uterine infertility; it can be performed after living donation or after DBD. In the DBD context, the uterus is typically the last organ removed after other vital organs, with the exception of the Baylor team, which removes the uterus first. This key aspect imposes an unavoidable mild temperature ischemia for >1 hour on the uterus during the removal of the vital abdominal and chest organs. In renal transplantation, the perfusion machine reduces the risk of delayed graft function; thus, we hypothesized that machine perfusion could result in a reduction of uterus graft dysfunction. The uterus graft dysfunction could be expressed by a low embryo implantation rate, pregnancy loss, or vascular pregnancy diseases such as preeclampsia or fetal growth restriction." To date, static cold storage of the uterus is the only standard method for preservation before transplantation. HMP is an emerging method that could potentially improve the preservation of the uterus to enhance graft preservation in the DBD context. DESIGN: This video article shows all the technical details of using the HMP for uterine transplantation. SETTING: University. ANIMALS: Porcine model. INTERVENTION: Porcine uterus was retrieved from a DBD domestic animal model and flushed with KPS MP (Bridge To Life Ltd in UK) at 4 °C. After vascular preparation on the back table, the uterus was perfused using KPS MP through a cannula in the aorta using the VitaSmart device (Bridge To Life Ltd in UK) for 18 hours. Then, the uterus was transplanted to the porcine recipient. MAIN OUTCOME MEASURES: The macroscopic appearance of the uterus at the end of HMP and the assessment of the uterus vascularization after transplantation in the recipient compared with the native uterus. RESULTS: This video shows the cannulation of the iliac vessels, cooling and removal of the uterus on a porcine model, uterus preservation using HMP during 18 hours, and then UT in a new recipient pig with the reperfusion of the transplanted uterus next to the native, intact uterus of the recipient. The macroscopic appearance of the uterus at the end of HMP appeared viable and was perfectly flushed. The assessment of the uterus vascularization after transplantation in the recipient was similar to that of the native uterus. To our knowledge, we describe here for the first time the UT procedure in DBD context on an animal model and the use of HMP for uterus preservation in UT programs; this could increase the number of uterine grafts available for a greater number of female recipients. CONCLUSION: Hypothermic machine perfusion could allow the duration of cold ischemia to be prolonged without altering the uterine graft. Nevertheless, this assertion has to be validated in a human context.


Assuntos
Preservação de Órgãos , Útero , Animais , Feminino , Temperatura Baixa , Preservação de Órgãos/métodos , Perfusão/métodos , Suínos , Útero/transplante
11.
J Clin Med ; 12(13)2023 Jun 21.
Artigo em Inglês | MEDLINE | ID: mdl-37445236

RESUMO

This study describes the characteristics of women who contacted an active program performing uterus transplantation (UTx) in the US, expressing interest in becoming a uterus transplant recipient or a living donor. Basic demographic and self-reported clinical information was collected from women who contacted any of the three US UTx programs from 2015 to July 2022. The three centers received 5194 inquiries about becoming a UTx recipient during the study timeframe. Among those reporting a cause of infertility, almost all of the reports (4066/4331, 94%) were absence of a uterus, either congenitally (794/4066, 20%) or secondary to hysterectomy (3272/4066, 80%). The mean age was 34 years, and 49% (2545/5194) had at least one child at the time of application. The two centers using living donors received 2217 inquiries about becoming living donors. The mean age was 34 years, and 60% (1330/2217) had given birth to ≥1 child. While most of the UTx clinical trial evidence has focused on young women with congenital absence of the uterus, these results show interest from a much broader patient population in terms of age, cause of infertility, and parity. These results raise questions about whether and to what extent the indications and eligibility criteria for UTx should be expanded as the procedure transitions from the experimental phase to being offered as a clinical treatment.

12.
Radiol Clin North Am ; 61(5): 889-899, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37495295

RESUMO

Uterus transplantation (UTx) is a novel procedure being studied as a treatment of absolute uterine factor infertility. Imaging plays an important role throughout the life cycle of a uterus transplant. In this review, we will first describe the surgical technique of UTx. The article will then focus on the importance of imaging in the evaluation of potential recipients and donors and during the immediate post-surgical time course as graft viability is established. Imaging as part of including in vitro fertilization, pregnancy, and complications will also be discussed.


Assuntos
Infertilidade Feminina , Gravidez , Feminino , Humanos , Infertilidade Feminina/diagnóstico por imagem , Infertilidade Feminina/cirurgia , Útero/cirurgia , Útero/transplante , Ductos Paramesonéfricos
13.
J Bioeth Inq ; 20(3): 367-378, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-37382845

RESUMO

Uterus transplantation (UTx) research has been introduced in several countries, with trials in Sweden and the United States producing successful outcomes. The growing interest in developing UTx trials in other countries, such as Spain, the Netherlands, Japan, and Australia, raises important questions regarding the ethics of surgical innovation research in the field of UTx. This paper examines the current state of UTx in the context of the surgical innovation paradigm and IDEAL framework and discusses the ethical challenges faced by those considering the introduction of new trials. We argue that UTx remains an experimental procedure at a relatively early stage of the IDEAL framework, especially in the context of de novo trials, where protocols are likely to deviate from those used previously and where researchers are likely to have limited experience of UTx. We conclude that countries considering the introduction of UTx trials should build on the strengths of the reported outcomes to consolidate the evidence base and shed light on the uncertainties of the procedure. Authorities responsible for the ethical governance of UTx trials are advised to draw on the ethical framework used in the oversight of surgical innovation.


Assuntos
Infertilidade Feminina , Transplante de Órgãos , Feminino , Humanos , Infertilidade Feminina/cirurgia , Útero/transplante , Japão , Suécia
14.
Bioethics ; 37(7): 637-646, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-37351931

RESUMO

Novel forms of assisted gestation-uterus transplantation and artificial placentas-are highly anticipated in the ethico-legal literature for their capacity to enhance reproductive autonomy. There are also, however, significant challenges anticipated in the development of novel forms of assisted gestation. While there is a normative exploration of these challenges in the literature, there has not yet, to my knowledge, been empirical research undertaken to explore what reproductive rights organisations and advocates identify as potential benefits and challenges. This perspective is invaluable. These organisations/individuals have an awareness not only of the needs of individuals but also of the political landscape in which regulatory decisions are made and which individuals navigate when seeking reproductive assistance. In this study, data was generated from two semi-structured focus groups (n = 11). Reflective thematic analysis was used to examine the views raised by study participants in these focus groups. This paper explores two of the themes constructed in the data. First, the equality-enhancing potential of assisted gestation exploring the multifaceted ways in which assisted gestation has structural benefits for marginalised groups. Second, realising the equality-enhancing potential of assisted gestation explores the intersecting barriers to access to reproductive technologies and how they may impede the benefits of these technologies in practice. These results can enhance conceptual understanding of the importance of novel forms of assisted gestation and ensure that attention is paid to practical barriers in further normative research.


Assuntos
Reprodução , Direitos Sexuais e Reprodutivos , Gravidez , Feminino , Humanos , Útero
15.
Int J Reprod Biomed ; 21(3): 193-204, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-37122889

RESUMO

The decision to use a living or deceased donor to perform uterus transplantation (UTx) is an evaluation of benefit and harm and is based on the medical team's choices. The current study determines the differences between living and deceased donation in human UTx according to determinant factors in choosing the donor type. For this review study, the PubMed database was searched without time, language, and location limitations up to May 2022. From 113 identified articles, 45 papers were included in the study for review. According to the results, in comparison to living donation, the biggest advantage of deceased donation is the lack of surgical and or psychological risks for the donor. In contrast, a comprehensive pre-transplantation medical assessment is less possible in deceased donation, and preplanned surgery cannot be realized. According to published peer-reviewed clinical trials on UTx, the graft failure rates in living and deceased donor UTx are 21% and 36%, respectively. Supposing all recipients who did not have graft failure underwent embryo transfer, live birth rates in living and deceased donor UTx procedures are almost 63% and 71%, respectively. Currently, considering the occurrence of live births from both donations, particularly from nulliparous deceased donor, increased demand for UTx in the near future, shortage of uterus grafts, and lack of sufficient data for a comprehensive comparison between the 2 types of donation, the use of both donations still seems necessary and rational.

16.
J Clin Med ; 12(8)2023 Apr 11.
Artigo em Inglês | MEDLINE | ID: mdl-37109148

RESUMO

Uterus-related infertility affects 3-5% of all young women, including Mayer-Rokitansky-Küster-Hauser (MRKH) syndrome, hysterectomy, or severe Asherman syndrome. For these women with uterus-related infertility, uterus transplantation is now a viable option. We performed the first surgically successful uterus transplant in September 2011. The Donor was a 22-year-old nulliparous woman. After five failed pregnancy attempts (pregnancy losses), ET attempts were discontinued in the first case, and a search for underlying etiology was performed, including static and dynamic imaging studies. Perfusion computed tomography revealed an obstructed blood outflow, particularly in the left anterolateral part of the uterus. In order to correct blood flow obstruction, a revision surgery was planned. By laparotomy, a saphenous vein graft was anastomosed between the left utero-ovarian and left ovarian vein. Perfusion computed tomography performed after the revision surgery confirmed the resolution of venous congestion and a decrease in uterine volume as well. Following surgical intervention, the patient was able to conceive after the first embryo transfer attempt. The baby was delivered with cesarean section at 28 weeks' gestation due to intrauterine growth restriction and abnormal Doppler ultrasonography findings. Following this case, our team performed the second uterus transplantation in July 2021. The recipient was a 32-year-old female with MRKH syndrome, and the donor was a 37-year-old multiparous braindead woman due to intracranial bleeding. After the transplant surgery, the second patient experienced menstrual bleeding six weeks after the operation. Seven months after the transplant, in the first ET attempt, pregnancy was achieved, and she delivered a healthy baby at 29 weeks of pregnancy. Uterus transplantation from a deceased donor is a feasible option for treating uterus-related infertility. When confronted with recurrent pregnancy losses, vascular revision surgery via arterial or venous supercharging could be an option in order to deal with focal underperfused areas defined by imaging studies.

17.
Bioethics ; 37(6): 591-599, 2023 07.
Artigo em Inglês | MEDLINE | ID: mdl-37119529

RESUMO

In this paper, I claim that live uterus donors ought to be considered for the possibility of compensation. I support my claim on the basis of comparable arguments which have already been applied to gamete donation, surrogacy, and other kinds of organ donation. However, I acknowledge that there are specificities associated with uterus donation, which make the issue of incentive and reward a harder ethical case relative to gamete donation, surrogacy, and other kinds of organ donation. Ultimately, I contend that while reimbursement for the costs incurred by live uterus donors should be treated as a necessary ethical minimum, how much further we ought to remunerate uterus donations remains an open question.


Assuntos
Transplante de Órgãos , Obtenção de Tecidos e Órgãos , Feminino , Humanos , Doadores Vivos , Útero , Células Germinativas , Doadores de Tecidos
18.
J Clin Med ; 12(5)2023 Mar 03.
Artigo em Inglês | MEDLINE | ID: mdl-36902818

RESUMO

Uterus transplantation (UTx) is now an alternative to surrogacy and adoption for women with uterine factor infertility to have children; however, there are still unresolved clinical and technical issues. One of these is that the graft failure rate after transplantation is somewhat higher than that of other life-saving organ transplants, which is a critical concern. Herein, we summarize the details of 16 graft failures after UTx with living or deceased donors using the published literature in order to learn from these negative outcomes. To date, the main causes of graft failure are vascular factors (arterial and/or venous thrombosis, atherosclerosis, and poor perfusion). Many recipients with thrombosis develop graft failure within one month of surgery. Therefore, it is necessary to devise a safe and stable surgical technique with higher success rates for further development in the UTx field.

19.
Bioethics ; 37(4): 350-358, 2023 05.
Artigo em Inglês | MEDLINE | ID: mdl-36758127

RESUMO

Uterus transplantation is a relatively new intervention. A woman with absolute uterine factor infertility receives, by a surgical procedure, a transplanted uterus, most often by living donation. The uterus recipient may thus become pregnant and conceive her own child. As with any other medical treatment, UTx requires legitimation. The anticipated benefits must outweigh the risks of the medical intervention. The risks and benefits of UTx are by no means unequivocal and cannot be easily determined. The benefits depend on the final evaluation of the suffering to be alleviated by the intervention. In the following, we will analyze the suffering addressed by UTx and discuss its normative value. First, we point out that (a) suffering is generally considered an important normative criterion in medicine as well as in the context of UTx; (b) we then describe the risks and anticipated benefits of UTx for the three persons directly concerned: the child, the donor, and the recipient; (c) we further analyze the suffering addressed by UTx. The intervention addresses a form of existential suffering. We discuss the common notion that existential suffering should be evaluated from the subjective perspective of the sufferer; (d) afterwards, we argue that in a social practice like medicine, a one-sided evaluation stemming from the sufferer alone is not sufficient; and (e) finally, arguments from a societal perspective lead us to the conclusion that the existential suffering addressed by UTx does not possess a sufficiently strong normative value to legitimize a high-risk, expensive procedure.


Assuntos
Infertilidade Feminina , Transplante de Órgãos , Feminino , Gravidez , Criança , Humanos , Infertilidade Feminina/terapia , Útero/transplante , Doadores de Tecidos , Técnicas de Reprodução Assistida
20.
Eur Surg Res ; 64(2): 158-168, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36623496

RESUMO

BACKGROUND: Uterus transplantation (UTx) has come of age in the 21st century, building on the 20th century developments in vascular anastomosis and effective immunosuppressive protocols that have enabled solid organ transplantation to become the life-extending and life-improving treatment option we know today. However, UTx has the goal of enabling reproduction, meaning that research has focused on establishment of pregnancy and healthy live birth in addition to surgical technique and immunosuppression. SUMMARY: The Dallas Uterus Transplant Study (DUETS), established at Baylor University Medical Center in 2015, is one of four UTx programs in the USA, and it holds the distinction of being home not only to the first US live birth but also the highest volume UTx program worldwide, with 23 uterus transplants performed to date, resulting in 15 live births. Innovations pioneered at our center span all aspects of the UTx process, all seeking to improve success for recipients in terms of achieving pregnancy and live birth, while also minimizing the burden on donors and recipients. They have included the following: (1) a deceased donor hysterectomy approach that allows the uterus to be procured prior to cross clamp; (2) proof of concept with use of only superior uterine veins after procuring both the superior and inferior uterine veins during the donor surgery, enabling the choice of the best option in terms of size and location for outflow, while also preserving ovary viability in living donors; (3) contribution to robot-assisted technique/minimally invasive technique with vaginal extraction of the uterus graft for living donor surgeries, shortening donor recovery times; (4) developing a robot-assisted technique for graft hysterectomies, improving recovery times for recipients at the end of their UTx journey; (5) refining immunosuppression protocols to enable embryo transfer as early as 3 months after induction therapy, increasing recipients' chances for achieving up to two live births during the 5 years posttransplant the UTx protocol specifies; and (6) building on our clinical trial experience to now offer UTx in the U.S. outside the setting of a clinical study. KEY MESSAGES: Our center along with others throughout the world has demonstrated that UTx can be reproducible, result in live births from both living and deceased donors, and be safely introduced as a clinical option. Due to the complexity of UTx as well as the need for long-term multidisciplinary care, centers implementing UTx should have an established abdominal transplant program, a gynecologic surgery program, high-risk obstetric and neonatal care, and institutional support and oversight, and should partner with established UTx programs for protocol development and operative proctoring.


Assuntos
Infertilidade Feminina , Gravidez , Recém-Nascido , Feminino , Humanos , Infertilidade Feminina/cirurgia , Útero/transplante , Doadores Vivos , Nascido Vivo
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