Gregory J. McKenna M.D.

McKenna, G. J., Johannesson, L. and Testa, G. (2022). “Technological Advancements in Uterus Transplantation.” Clin Obstet Gynecol 65(1): 44-51.

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Uterus transplantation is barely a decade old and in a young, evolving field it is hard to identify “technological advances” since it is, in of itself, a technological advance. Nonetheless, one can still identify advances in diagnostic imaging that have improved donor screening to avoid graft losses, highlight the adoption of robotic surgery to make the living donor uterus procurement more minimally invasive, and look to a future of biotechnology like perfusion pumps and bioengineering such as synthetic uterus to increase donor supply. Additional technologies are on the horizon and promise to shape the field further.

Hannon, V. N., Tinguely, P., McKenna, G. J., Brustia, R., Kaldas, F. M., Scatton, O., Spiro, M., Raptis, D. A., Busuttil, R. W. and Klintmalm, G. B. (2022). “New ERAS in liver transplantation – Past, present and next steps.” Clin Transplant: e14625.

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There are parallels between the history of enhanced recovery after surgery (ERAS) and liver transplantation. Both have been established and advanced by innovative individuals, often going against perceived wisdom and convention. Liver Transplantation has traditionally been considered too complex for ERAS pathways, despite a small number of trials showing them to be both safe and of benefit. To date, there are very few randomized controlled trials and cohort studies publishing outcomes on liver transplant patients enrolled in comprehensive ERAS pathways. To progress our field, the 2022 International Liver Transplantation Society’s Consensus Conference has created expert panels to analyze the evidence in 32 domains of the liver transplantation pathway using the GRADE (Grading of Recommendations, Assessment, Development and Evaluations) approach to generate expert recommendations. These recommendations will be voted on by the international community to gain consensus using the Danish model, and create the ERAS4OLT.org Enhanced Recovery after Liver Transplantation Pathway.

Johannesson, L., Koon, E.C., Bayer, J., McKenna, G.J., Wall, A., Fernandez, H., Martinez, E.J., Gupta, A., Ruiz, R., Onaca, N. and Testa, G. (2021). “Dallas UtErus Transplant Study: Early Outcomes and Complications of Robot-assisted Hysterectomy for Living Uterus Donors.” Transplantation 105(1): 225-230.

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BACKGROUND: Uterus transplantation is a treatment for absolute uterine infertility and can be performed with living and deceased donors. Given the safety and increased utilization of robotic assistance with other gynecologic and transplant donor operations, we adopted a robot-assisted approach to donor hysterectomy. This study compared early outcomes and morbidity of the robot-assisted approach to donor hysterectomy with the traditionally performed open approach and addressed whether the robot-assisted approach is safe and offers advantages for the donor. METHODS: Our institution has performed 18 living donor hysterectomies for uterus transplantation. This retrospective review compared the last 5 cases utilizing a robot-assisted technique and vaginal extraction of the uterus graft with the first 13 cases performed with an open laparotomy technique. Demographic, intraoperative, and postoperative data were examined. RESULTS: There were no differences between the robot-assisted and the open living donor group with respect to age, body mass index, or gynecological history. Although the median operative time was shorter for the open approach (6.27 versus 10.46 h), the donors’ median estimated blood loss, length of hospital stay, and length of sick leave were less with the robot-assisted approach. There was no conversion to open hysterectomy in the robot-assisted cases, and the incidence of complications was similar between the 2 groups. There was no difference in early graft function. CONCLUSIONS: These preliminary results show that robot-assisted living donor hysterectomy is feasible and safe for the donors; it allows a faster postoperative recovery and the same early graft function.

Testa, G., G. J. McKenna, J. Bayer, A. Wall, H. Fernandez, E. Martinez, A. Gupta, R. Ruiz, N. Onaca, R. T. Gunby, A. R. Gregg, M. Olausson, E. C. Koon and L. Johannesson (2020). “The Evolution of Transplantation From Saving Lives to Fertility Treatment: DUETS (Dallas UtErus Transplant Study).” Ann Surg Jul 9. [Epub ahead of print.].

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OBJECTIVE: We report the results of the first 20 uterus transplants performed in our institution. SUMMARY BACKGROUND DATA: Uterus transplantation (UTx) aims at giving women affected by absolute uterine-factor infertility the possibility of carrying their own pregnancy. UTx has evolved from experimental to an established surgical procedure. METHODS: The Dallas Uterus Transplant Study (DUETS) program started in 2016. The uterus was transplanted in orthotopic position with vascular anastomoses to the external iliac vessels and removed when 1 or 2 live births were achieved. Immunosuppression lasted only for the duration of the uterus graft. RESULTS: Twenty women, median age 29.7 years, enrolled in the study, with 10 in phase 1 and 10 in phase 2. All but 2 recipients had a congenital absence of the uterus. Eighteen recipients received uteri from living donors and 2 from deceased donors. In phase 1, 50% of recipients had a technically successful uterus transplant, compared to 90% in phase 2. Four recipients with a technical success in phase 1 have delivered 1 or 2 babies, and the fifth recipient with a technical success is >30 weeks pregnant. In phase 2, 2 recipients have delivered healthy babies and 5 are pregnant. CONCLUSIONS: UTx is a unique type of transplant; whose only true success is a healthy child birth. Based on results presented here, involving refinement of the surgical technique and donor selection process, UTx is now an established solution for absolute uterine-factor infertility.

Ramani, A., G. Testa, Y. Ghouri, E. C. Koon, M. Di Salvo, G. J. McKenna, J. Bayer, A. M. Warren, A. Wall and L. Johannesson (2019). “DUETS (Dallas UtErus Transplant Study):Complete report of 6-month and initial 2-year outcomes following open donor hysterectomy.” Clin Transplant Nov 22. [Epub ahead of print].

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INTRODUCTION: Uterus transplantation has shown success in treating women with uterine-factor infertility who want to carry their own pregnancy. METHODS: We report the medical, sexual, and psychological outcomes of our first cohort of 13 living-donor hysterectomies. As we have transitioned from open to robotically assisted hysterectomy, this report represents the complete series of open-donor hysterectomies at our center, all with >/=6-month postoperative outcomes. RESULTS: The open donor hysterectomy had a median of a 6.5-hour surgical time, 0.8 L estimated blood loss, 6-day hospital stay, and 28-day sick leave. Three donors had a grade III or IV complications, one reported new-onset psychological symptoms, and 9 experienced transient sexual discomfort. All complications were addressed and resolved, and all donors returned to their presurgical social and physical activities. CONCLUSION: Since uterus transplantation is not life-saving or life-extending, the risks in living uterus donation must be weighed against the benefit of giving another woman the opportunity to give birth to her own child. This report provides data to support more detailed informed consent regarding the medical, psychological, and sexual complications of open living donor hysterectomy and allows for further evaluation of the ethical acceptability of this procedure.