1
|
Song BB, Quinn MM. Planned Oocyte Cryopreservation: A Review of Current Evidence on Outcomes, Safety and Risks. Obstet Gynecol Clin North Am 2023; 50:707-719. [PMID: 37914489 DOI: 10.1016/j.ogc.2023.08.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
Although oocyte cryopreservation was initially used as a fertility preservation strategy for medical indications, it is now is increasingly used to circumvent age-related infertility. Outcomes following planned oocyte vitrification, also known as elective egg freezing, are limited. Current studies show higher success rates for individuals undergoing fertility preservation treatment under age 35. Additionally, while freezing 20 oocytes is optimal to achieve pregnancy, freezing at least 8-10 oocytes is recommended. While fertility is not guaranteed, current evidence demonstrates that planned oocyte vitrification is an overall safe, low risk method of fertility preservation to reduce the risk for age-related infertility.
Collapse
Affiliation(s)
- Bonnie B Song
- University of Southern California/Los Angeles General Medical Center, 2051 Marengo Street, Los Angeles, CA 90033, USA.
| | - Molly M Quinn
- University of Southern California/Los Angeles General Medical Center, 2051 Marengo Street, Los Angeles, CA 90033, USA; HRC Fertility, 55 S Lake Avenue, Suite 900, Pasadena, CA 91101, USA
| |
Collapse
|
2
|
Sandhu S, Hickey M, Lew R, Hammarberg K, Braat S, Agresta F, Parle A, Allingham C, Peate M. The development and phase 1 evaluation of a Decision Aid for elective egg freezing. BMC Med Inform Decis Mak 2023; 23:83. [PMID: 37147687 PMCID: PMC10161420 DOI: 10.1186/s12911-023-02178-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 04/21/2023] [Indexed: 05/07/2023] Open
Abstract
BACKGROUND Elective egg freezing decisions are complex. We developed a Decision Aid for elective egg freezing and conducted a phase 1 study to evaluate its acceptability and utility for decision-making. METHODS The online Decision Aid was developed according to International Patient Decision Aid Standards and evaluated using a pre/post survey design. Twenty-six Australian women aged 18-45 years, interested in receiving elective egg freezing information, proficient in English, and with access to the internet were recruited using social media and university newsletters. Main outcomes were: acceptability of the Decision Aid; feedback on the Decision Aid design and content; concern raised by the Decision Aid, and; utility of the Decision Aid as measured by scores on the Decisional Conflict Scale and on a study-specific scale assessing knowledge about egg freezing and age-related infertility. RESULTS Most participants found the Decision Aid acceptable (23/25), balanced (21/26), useful for explaining their options (23/26), and for reaching a decision (18/26). Almost all reported satisfaction with the Decision Aid (25/26) and the level of guidance it provided (25/26). No participant reported serious concerns about the Decision Aid, and most would recommend it to other women considering elective egg freezing (22/26). Median Decisional Conflict Scale score decreased from 65/100 (Interquartile range: 45-80) pre-Decision Aid to 7.5/100 (Interquartile range: 0-37.5) post-Decision Aid review (p < 0.001). Median knowledge score increased from 8.5/14 (Interquartile range: 7-11) pre-Decision Aid to 11/14 (Interquartile range: 10-12) post-Decision Aid review (p = 0.01). CONCLUSION This elective egg freezing Decision Aid appears acceptable and useful for decision-making. It improved knowledge, reduced decisional conflict and did not raise serious concerns. The Decision Aid will be further evaluated using a prospective randomised control trial. STUDY REGISTRATION ACTRN12618001685202 (retrospectively registered: 12 October 2018).
Collapse
Affiliation(s)
- Sherine Sandhu
- Department of Obstetrics & Gynaecology, The University of Melbourne, Royal Women's Hospital, Level 7, Cnr Grattan Street & Flemington Road, Parkville, Melbourne, Australia.
| | - Martha Hickey
- Department of Obstetrics & Gynaecology, The University of Melbourne, Royal Women's Hospital, Level 7, Cnr Grattan Street & Flemington Road, Parkville, Melbourne, Australia
| | - Raelia Lew
- Department of Obstetrics & Gynaecology, The University of Melbourne, Royal Women's Hospital, Level 7, Cnr Grattan Street & Flemington Road, Parkville, Melbourne, Australia
- Reproductive Services Unit, Royal Women's Hospital, Melbourne, Australia
| | - Karin Hammarberg
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia
- Victorian Assisted Reproductive Treatment Authority, Melbourne, Australia
| | - Sabine Braat
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Australia
- MISCH (Methods and Implementation Support for Clinical and Health) Research Hub, Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne, Melbourne, Australia
| | | | - Anna Parle
- Department of Obstetrics & Gynaecology, The University of Melbourne, Royal Women's Hospital, Level 7, Cnr Grattan Street & Flemington Road, Parkville, Melbourne, Australia
| | - Catherine Allingham
- Department of Obstetrics & Gynaecology, The University of Melbourne, Royal Women's Hospital, Level 7, Cnr Grattan Street & Flemington Road, Parkville, Melbourne, Australia
| | - Michelle Peate
- Department of Obstetrics & Gynaecology, The University of Melbourne, Royal Women's Hospital, Level 7, Cnr Grattan Street & Flemington Road, Parkville, Melbourne, Australia
| |
Collapse
|
3
|
Yoshinaga K, Hashimoto T, Fukuoka Y, Okuyama N, Kyono K. Non-medical oocyte cryopreservation at a single center in Japan: 8 years of experience. Reprod Med Biol 2023; 22:e12549. [PMID: 37954402 PMCID: PMC10638488 DOI: 10.1002/rmb2.12549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 10/04/2023] [Accepted: 10/12/2023] [Indexed: 11/14/2023] Open
Abstract
Purpose Increasing numbers of women are opting to undergo non-medical oocyte cryopreservation (NMOC). In this report, we present experience at our clinic and discuss NMOC in Japan. Methods We followed the progress of 403 women who underwent NMOC at our clinic between 2014 and 2021, totaling 592 reproductive cycles. Results In total, 61 women underwent oocyte warming and fertility treatment. Of these, 13 women gave birth to 14 children. The median age at first oocyte cryopreservation was 38.3 years, and the oldest pregnant woman was 42 years. Most clients (60%) were in their late 30s. The median time between first oocyte cryopreservation and warming was 3.0 years. One woman was able to achieve a live birth with four vitrified oocytes. Conclusions This is the first report in Japan documenting pregnancies and childbirths resulting from NMOC. Ideally, women hope to achieve natural pregnancy between 20 and 32 years of age. NMOC is an option for individuals who are unable to pursue pregnancy during optimal reproductive years and wish to preserve their fertility for future attempts. NMOC is recommended in cases with few indications, and it is necessary to continue accumulating data on its long-term safety and effectiveness.
Collapse
|
4
|
Perros P, Psarris A, Antsaklis P, Theodora M, Syndos M, Koutras A, Ntounis T, Fasoulakis Z, Rodolakis A, Daskalakis G. Neurodevelopmental Outcomes of Pregnancies Resulting from Assisted Reproduction: A Review of the Literature. CHILDREN (BASEL, SWITZERLAND) 2022; 9:children9101511. [PMID: 36291447 PMCID: PMC9600207 DOI: 10.3390/children9101511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 09/23/2022] [Accepted: 09/29/2022] [Indexed: 11/07/2022]
Abstract
The term infertility is defined as the lack of conception within 1 year of unprotected intercourse. It affects more than 80 million individuals worldwide. It is estimated that 10-15% of couples of reproductive age are challenged by reproductive issues. Assisted reproduction techniques (ART) are responsible for more than 4% of live births. Our aim is to review the research on neurodevelopmental outcomes of newborns born after the implementation of assisted reproduction methods compared to those conceived naturally. We conducted a comprehensive search of the PubMed, Crossref and Google Scholar electronic databases for related articles up to June 2022 using the PRISMA guidelines. Our research revealed a large number of long term follow-up studies between 2 and 18 years of age, with comparable developmental outcomes. Many studies compared the effects of different infertility treatments against natural conception. The review of the literature revealed that ART is safe, as the majority of studies showed no effect on the neurodevelopmental outcomes of the offspring. In most cases when such an effect was observed, it could be attributed to confounding factors such as subfertility, multiple pregnancies and gestational age at delivery. Finally, the increase in the prevalence of neurodevelopmental disorders after ART, as described in studies with statistically significant results, is predominantly marginal, and given the low incidence of neurodevelopmental disorders in the general population, its clinical significance is debatable.
Collapse
|
6
|
Chang CC, Shapiro DB, Nagy ZP. The effects of vitrification on oocyte quality. Biol Reprod 2021; 106:316-327. [PMID: 34962575 DOI: 10.1093/biolre/ioab239] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 12/13/2021] [Accepted: 12/21/2021] [Indexed: 11/13/2022] Open
Abstract
Vitrification, is an ultra-rapid, manual cooling process that produces glass-like (ice crystal free) solidification. Water is prevented from forming intercellular and intracellular ice crystals during cooling as a result of oocyte dehydration and the use of highly concentrated cryoprotectant. Though oocytes can be cryopreserved without ice crystal formation through vitrification, it is still not clear whether the process of vitrification causes any negative impact (temperature change/chilling effect, osmotic stress, cryoprotectant toxicity, and/or phase transitions) on oocyte quality that translate to diminished embryo developmental potential or subsequent clinical outcomes. In this review, we attempt to assess the technique's potential effects and the consequence of these effects on outcomes.
Collapse
Affiliation(s)
- Ching-Chien Chang
- Reproductive Biology Associates, 1100 Johnson Ferry Rd., Ste200, Atlanta, GA 30342, USA
| | - Daniel B Shapiro
- Reproductive Biology Associates, 1100 Johnson Ferry Rd., Ste200, Atlanta, GA 30342, USA
| | - Zsolt Peter Nagy
- Reproductive Biology Associates, 1100 Johnson Ferry Rd., Ste200, Atlanta, GA 30342, USA
| |
Collapse
|
7
|
Plancha CE, Rodrigues P, Marques M, Almeida JM, Navarro-Costa P. The time is ripe for oocyte in vitro maturation. J Assist Reprod Genet 2021; 38:1281-1283. [PMID: 33963970 PMCID: PMC8105698 DOI: 10.1007/s10815-021-02209-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 04/26/2021] [Indexed: 01/01/2023] Open
Affiliation(s)
- Carlos E Plancha
- Instituto de Histologia e Biologia do Desenvolvimento, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal. .,Centro Médico de Assistência à Reprodução (CEMEARE), Lisboa, Portugal.
| | - Patrícia Rodrigues
- Centro Médico de Assistência à Reprodução (CEMEARE), Lisboa, Portugal.,Escola de Psicologia e Ciências da Vida, Universidade Lusófona de Humanidade e Tecnologia, Lisboa, Portugal
| | - Mónica Marques
- Centro Médico de Assistência à Reprodução (CEMEARE), Lisboa, Portugal
| | - Joana M Almeida
- Instituto Gulbenkian de Ciência, Oeiras, Portugal.,Instituto de Saúde Ambiental, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Paulo Navarro-Costa
- Instituto Gulbenkian de Ciência, Oeiras, Portugal. .,Instituto de Saúde Ambiental, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal.
| |
Collapse
|