Effect of Age on Sperm Recovery of Microdissection Testicular Sperm Extraction in Nonobstructive Azoospermia Patients
1 other identifier
observational
3,104
1 country
1
Brief Summary
Males with non-obstructive azoospermia (NOA) have an opportunity to obtain sperm by treatment with microdissection testicular sperm extraction (mTESE), gold-standard surgical technique for them. The overall sperm retrieval rate (SRR) of mTESE in NOA patients is about 50%, but the predictive factors of SRR remain were understudied, especially the effect of age. The purpose of this study was to explore the factors influencing the SRR of mTESE in NOA patients with different etiologies. Methods: This observational study recruit NOA patients treated with their first mTESE. The stratified research was used to investigate SRR by dividing patients into seven groups based on etiology. The primary outcome was SRR. Multivariable logistic regression was used to analyze the factors influencing SRR.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Mar 2012
Longer than P75 for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
March 1, 2012
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 31, 2022
CompletedStudy Completion
Last participant's last visit for all outcomes
March 31, 2023
CompletedFirst Submitted
Initial submission to the registry
July 15, 2023
CompletedFirst Posted
Study publicly available on registry
July 24, 2023
CompletedJuly 24, 2023
December 1, 2022
10.8 years
July 15, 2023
July 21, 2023
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
sperm retrieval rate
If sperm was observed during the surgery, this case was defined as positive. If sperm wasn't observed, the case was defined as negative.
immediately after surgery
Eligibility Criteria
Non-obstructive azoospermia patients
You may qualify if:
- Non-obstructive azoospermia patients were treated with microdissection testicular sperm extraction.
You may not qualify if:
- Obstructive azoospermia patients.
- Fertile males.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Peking University Third Hospital
Beijing, Beijing Municipality, 100191, China
Related Publications (10)
Mittal PK, Little B, Harri PA, Miller FH, Alexander LF, Kalb B, Camacho JC, Master V, Hartman M, Moreno CC. Role of Imaging in the Evaluation of Male Infertility. Radiographics. 2017 May-Jun;37(3):837-854. doi: 10.1148/rg.2017160125. Epub 2017 Apr 14.
PMID: 28410062RESULTTuttelmann F, Werny F, Cooper TG, Kliesch S, Simoni M, Nieschlag E. Clinical experience with azoospermia: aetiology and chances for spermatozoa detection upon biopsy. Int J Androl. 2011 Aug;34(4):291-8. doi: 10.1111/j.1365-2605.2010.01087.x. Epub 2010 Jun 28.
PMID: 20609027RESULTHopps CV, Mielnik A, Goldstein M, Palermo GD, Rosenwaks Z, Schlegel PN. Detection of sperm in men with Y chromosome microdeletions of the AZFa, AZFb and AZFc regions. Hum Reprod. 2003 Aug;18(8):1660-5. doi: 10.1093/humrep/deg348.
PMID: 12871878RESULTForti G, Corona G, Vignozzi L, Krausz C, Maggi M. Klinefelter's syndrome: a clinical and therapeutical update. Sex Dev. 2010 Sep;4(4-5):249-58. doi: 10.1159/000316604. Epub 2010 Jul 21.
PMID: 20664188RESULTKrausz C. Male infertility: pathogenesis and clinical diagnosis. Best Pract Res Clin Endocrinol Metab. 2011 Apr;25(2):271-85. doi: 10.1016/j.beem.2010.08.006.
PMID: 21397198RESULTPena VN, Kohn TP, Herati AS. Genetic mutations contributing to non-obstructive azoospermia. Best Pract Res Clin Endocrinol Metab. 2020 Dec;34(6):101479. doi: 10.1016/j.beem.2020.101479. Epub 2020 Dec 15.
PMID: 33390350RESULTTernavasio-de la Vega HG, Boronat M, Ojeda A, Garcia-Delgado Y, Angel-Moreno A, Carranza-Rodriguez C, Bellini R, Frances A, Novoa FJ, Perez-Arellano JL. Mumps orchitis in the post-vaccine era (1967-2009): a single-center series of 67 patients and review of clinical outcome and trends. Medicine (Baltimore). 2010 Mar;89(2):96-116. doi: 10.1097/MD.0b013e3181d63191.
PMID: 20517181RESULTMieusset R, Bujan L, Massat G, Mansat A, Pontonnier F. Clinical and biological characteristics of infertile men with a history of cryptorchidism. Hum Reprod. 1995 Mar;10(3):613-9. doi: 10.1093/oxfordjournals.humrep.a135998.
PMID: 7782441RESULTZhang HL, Zhao LM, Mao JM, Liu DF, Tang WH, Lin HC, Zhang L, Lian Y, Hong K, Jiang H. Sperm retrieval rates and clinical outcomes for patients with different causes of azoospermia who undergo microdissection testicular sperm extraction-intracytoplasmic sperm injection. Asian J Androl. 2021 Jan-Feb;23(1):59-63. doi: 10.4103/aja.aja_12_20.
PMID: 32341210RESULTBonarriba CR, Burgues JP, Vidana V, Ruiz X, Piza P. Predictive factors of successful sperm retrieval in azoospermia. Actas Urol Esp. 2013 May;37(5):266-72. doi: 10.1016/j.acuro.2012.06.002. Epub 2012 Oct 9. English, Spanish.
PMID: 23062736RESULT
Study Officials
- PRINCIPAL INVESTIGATOR
Li Zhang, Ph.D
Peking University Third Hospital
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- RETROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
July 15, 2023
First Posted
July 24, 2023
Study Start
March 1, 2012
Primary Completion
December 31, 2022
Study Completion
March 31, 2023
Last Updated
July 24, 2023
Record last verified: 2022-12
Data Sharing
- IPD Sharing
- Will not share
The IPD of this study is openly available to other researchers. You could get them from Li Zhang and please contact her (lizhang0814@163.com).