GLOBAL ANDROLOGY FORUM
Article #53: “Effectiveness of, and Satisfaction with, a Microsurgical Testicular Sperm Extraction Knowledge and Skills Masterclass for a World-Wide Audience”
Authors:
Walid El Ansari, Mohamed Arafa, Merilyn Lock, Rupin Shah, Ashok Agarwal, World J Mens Health 2024 Jul 42(3): 574-586
https://doi.org/10.5534/wjmh.230195
Contributors: Edoardo Pozzi, MD (USA, Italy), Murat Dursun, MD
(Turkey), Mustafa Kadihasanoglu, MD (Turkey)
Commentary:
The study on microsurgical testicular sperm extraction (mTESE) training masterclass represents a significant milestone in addressing the critical need for specialized training in mTESE on a global scale (1). As the complexity of male factor infertility (MFI) management continues to row, so does the imperative for highly skilled practitioners capable of performing procedures like mTESE (2). This paper highlights the effectiveness of a novel online masterclass and underscores several key issues in contemporary andrology education and practice (1). First and foremost, the author’s innovative approach to delivering a comprehensive mTESE masterclass through a hybrid model deserves commendation (1). Combining didactic lectures with interactive case discussions has created a learning environment that bridges the gap between theory and practice - a crucial aspect often overlooked in traditional medical education (1). The Global Andrology Forum's (GAF) utilization of technology to reach a worldwide audience is particularly noteworthy, as it democratizes access to specialized knowledge that was previously confined to select institutions. The study's findings of broad, deep, and inclusive learning outcomes across various participant demographics are encouraging (1). However, they also reveal a concerning baseline deficiency in mTESE knowledge and skills among practicing andrologists (1). This gap in expertise, highlighted by the fact that 57% of participants had no prior mTESE training, raises important questions about the current state of andrology residency programs and continuing medical education globally (1). As such, 55% of the participants who stated that they had received mTESE training reported that they achieved this through the watched videos (1). This indicates the necessity of using standardized training materials (surgery videos) and a need for expanded practical training sessions (1). Moreover, the differential improvement observed among participants - with those having less experience and lower self-rated skills showing greater relative gains - points to the potential of such masterclasses in rapidly upskilling the andrology workforce (1). This is particularly crucial in addressing disparities in male infertility care across different healthcare settings and geographical regions.
While the authors should be commended for their rigorous evaluation of the masterclass's impact, future iterations could benefit from long-term follow-up to assess knowledge retention and, more importantly, the translation of learned skills into clinical practice. Additionally, the development of standardized, competency-based assessment tools for mTESE proficiency could further improve the value of such educational initiatives. The near-universal satisfaction reported by participants underscores the need for high-quality, accessible training in advanced andrological techniques. However, it also highlights a worrying lack of similar educational opportunities in the field. As such, this study serves as a call to action for professional societies and academic institutions to invest in developing and scaling up similar programs. In conclusion, the GAF authors have not only demonstrated the efficacy of their mTESE masterclass but have also outlined the urgent need for a paradigm shift in andrology education. Their work challenges the andrology community to reimagine how we train the next generation of specialists and upskill current practitioners. As we move forward, it will be crucial to build upon this model, integrating hands-on training components and engaging in emerging technologies like virtual reality to further enhance learning outcomes (3). The GAF's initiative marks an important step towards standardizing and elevating the quality of male infertility care worldwide. It is now incumbent upon the broader andrology community to answer this call and work collaboratively to ensure that every practitioner has access to the knowledge and skills necessary to offer patients the highest standard of care, regardless of their geographical location or practice setting.
References:
1. El Ansari W, Arafa M, Lock M, Shah R, Agarwal A. Effectiveness of, and satisfaction with, a microsurgical testicular sperm extraction knowledge and skills masterclass for a world-wide audience. World J Mens Health. 2024 Jul;42(3):574–86.
2. Schlegel PN. Testicular sperm extraction: microdissection improves sperm yield with minimal tissue excision. HumReprod. 1999 Jan 1;14(1):131–5.
3. Cacciamani GE, Chen A, Gill IS, Hung AJ. Artificial intelligence and urology: ethical considerations for urologists and patients. Nat Rev Urol. 2024 Jan;21(1):50–9.
Edoardo Pozzi, MD1,2,3,4, Murat Dursun, MD5,4, Mustafa Kadihasanoglu, MD6,4
Authors ORCID:
Edoardo Pozzi: 0000-0002-0228-7039
Murat Dursun: 0000-0001-9115-7203
Mustafa Kadihasanoglu: 0000-0001-5109-5319
Corresponding Author:
Edoardo Pozzi, M.D.
Desai Sethi Urology Institute
Miller School of Medicine
University of Miami, Miami, FL, USA
Email: exp1710@miami.edu
Take Home Message
Contributing author: Ashok Agarwal, Director, Global Andrology Forum, Moreland Hills, OH, USA
Significant Knowledge Improvement: The masterclass markedly improved participants' mTESE knowledge and skills, with pre-quiz scores increasing from an average of 13.7 to 17.1 post-quiz. This improvement was consistent across various demographic and professional backgrounds, demonstrating the comprehensive and effective nature of the training.
Broad and Inclusive Impact: The enhancement in knowledge was broad, covering 19 out of 24 quiz questions, and inclusive, with all participants showing improvements regardless of their demographics or professional attributes. Notably, those with less prior experience or lower self-rated skills saw the most significant gains.
High Satisfaction: Participants reported extremely high satisfaction levels (98% to >99%) with the masterclass, highlighting the quality and relevance of the content, which included didactic lectures and case discussions led by international experts in male infertility management.
Global Andrology Forum's Effective Model:
The success of this masterclass showcases the effectiveness of the Global Andrology Forum's model for online and hybrid educational activities. This model can be adopted by other organizations aiming to enhance specialist training in andrology and related fields.
My Viewpoint on mTESE Masterclass for a World-Wide Audience
Dr. Edoardo Pozzi responds to questions from Ashok
Q1. What is the primary advantage of mTESE over conventional testicular sperm extraction (TESE) in non-obstructive azoospermia (NOA) patients?
Dr. Pozzi: The primary advantage of mTESE over conventional TESE in NOA patients is its superior safety and efficacy profile, with significantly reduced overall testicular tissue damage. This advantage resides in the microdissection technique used in mTESE, which allows for a more precise and targeted approach to sperm retrieval by minimizing excisional damage (mainly on Leydig cells). Moreover, through mTESE it is possible to identify areas more likely to contain sperm (dilated tubules), minimizing unnecessary tissue removal. Lastly, it is important to note that while mTESE is generally considered safer than conventional TESE, it is not without risks. Potential complications can include scrotal hematoma, abscesses, infections, and potential long-term impairment of testicular function. Additionally, there are concerns about the procedure's impact on hormonal function. The tissue excision during mTESE may lead to temporary or long-term hormonal dysfunction, affecting testosterone production, circulating total testosterone levels, follicle-stimulating hormone levels, and luteinizing hormone levels. These hormonal changes can potentially disrupt the homeostasis of the hypothalamic-pituitary-gonadal axis. Evidence is still controversial on this specific topic.
Q2. How do patient characteristics, such as age and testicular volume, influence the success rate of mTESE?
Dr. Pozzi: Patients’ characteristics may play a crucial role in men undergoing mTESE. Specifically, age has a somewhat controversial role in patients with NOA. As such, current evidence has not definitively established a specific age cutoff for paternal age and sperm retrieval outcomes in mTESE procedures. However, some studies suggest that increased paternal age may negatively affect sperm retrieval rates, particularly in patients with certain genetic conditions such as Klinefelter syndrome. The same holds true for testicular volume.
Q3. What are the key predictors of successful sperm retrieval in mTESE?
Dr. Pozzi: This is a million-dollar question. Many studies have attempted to answer and find reliable predictors for sperm retrieval in men undergoing mTESE for NOA. As such, key predictors of successful sperm retrieval in mTESE for men with NOA primarily involve hormonal markers. Anti-Müllerian hormone (AMH) has emerged as the most promising predictor, with lower serum AMH levels and a lower AMH/testosterone ratio associated with higher chances of successful sperm retrieval. AMH has shown consistent results across multiple studies and is considered a “reliable” biomarker for predicting positive sperm retrieval outcomes.
The follicle-stimulating hormone has been extensively studied, but its predictive value remains controversial. Some studies suggest that higher preoperative FSH levels may be associated with successful sperm retrieval, while others have found no significant correlation. Inhibin B (InhB) has also been investigated as a potential predictor. Lower baseline InhB levels have been associated with positive sperm retrieval in some studies. However, its role as a predictor is not firmly established, and more comprehensive research is needed to confirm its utility. It is important to note that the predictive value of these hormones can vary depending on the specific etiology of NOA. The complexity and heterogeneity of NOA cases make it challenging to establish definitive predictors. Additionally, factors such as patient age, testicular volume, and the surgeon's expertise may also influence mTESE outcomes.
Q4. How does the experience and training of the surgeon impact the outcomes of mTESE procedures?
Dr. Pozzi: The experience and training of the surgeon significantly impact the outcomes of mTESE procedures. Surgeons with specialized training in reproductive health, particularly those who have completed fellowships focused on male infertility, certainly achieve higher sperm retrieval rates. This is due to their advanced knowledge of testicular anatomy and their ability to identify subtle differences in seminiferous tubules that may contain sperm. Surgical volume is another critical factor. Surgeons who regularly perform mTESE procedures surely demonstrate better outcomes compared to those who perform them infrequently.
Q5. What are the potential complications associated with mTESE, and how can they be minimized?
Dr. Pozzi:
mTESE can lead to several potential complications, despite being considered safer than conventional TESE and generally a very safe operation. These include scrotal hematoma, abscesses, infections, and potential long-term impairment of testicular function. Of particular concern is the procedure's impact on hormonal function, which may result in temporary or long-term hormonal dysfunction affecting testosterone production. To minimize these complications, several factors are crucial. First, the surgeon's experience and training play a significant role. Surgeons with specialized training in reproductive health and high surgical volumes tend to achieve better outcomes with fewer complications. Their expertise allows for more precise identification of sperm-containing tubules, minimizing unnecessary tissue removal and reducing the risk of hormonal disruption.
Edoardo Pozzi, MD: Short Biography
Edoardo Pozzi, MD1,2
1.Desai Sethi Urology Institute, University of Miami
Miami, FL, USA
2.Division of Experimental
Oncology/Unit of Urology, Urological Research Institute (URI)
Università Vita-Salute San
Raffaele, Milan, Italy
IRCCS Ospedale San Raffaele, Milan, Italy
Email: pozzi.edoardo@hsr.it
ORCID:
0000-0002-0228-7039
Dr. Edoardo Pozzi works in Urology at Vita-Salute San Raffaele University, Milan, Italy. He graduated with honors and special mention from the English-language Medicine and Surgery program at the same university in 2019. During his final year of studies, he completed a research fellowship at the Andrology Department of University College London Hospital (UCLh) in London. After obtaining his license to practice clinically in the United States, Edoardo is doing a fellowship at the University of Miami, Desai Sethi Urology Institute. In Miami, he is involved in clinical/surgical activities and research in the uro-andrological field. He has authored over 90 scientific publications in indexed international journals, as well as six chapters in the uro-andrological field. He serves as Associate editor of the International Journal of Impotence Research (Springer Nature) and as a reviewer for several important scientific journals, including Human Reproduction, Fertility & Sterility, Andrology, and the Journal of Sexual Medicine.
My Viewpoint on mTESE Masterclass for a World-Wide Audience
Dr. Murat Dursun responds to questions from Ashok
Q1. How do hormonal treatments, such as those involving follicle-stimulating hormone (FSH), improve mTESE outcomes?
Dr. Dursun:The use of exogenous gonadotropins is known to be effective in azoospermic patients with hypogonadotropic hypogonadism. However, although studies on pre-surgical hormonal treatment in men with idiopathic non-obstructive azoospermia (NOA) are promising, there is still insufficient data to recommend it as a routine treatment. In studies, it has been suggested that increasing intratesticular testosterone (ITT), especially in those with low ITT, can enhance spermatogenesis and improve the success of sperm retrieval. Increased follicle-stimulating hormone (FSH) serum levels resulting from treatment can
also stimulate spermatogenesis. Various treatment options for this purpose include human chorionic gonadotropin (hCG) and/or FSH, as well as selective estrogen receptor modulators.
Q2. What role do molecular biomarkers and noncoding RNAs in seminal plasma play in predicting mTESE success?
Dr. Dursun:It has been shown that seminal plasma (SP) can be a rich source of non-invasive biomarkers, including tissue-specific RNAs and proteins. Therefore, SP biomarkers could be used to predict the success of sperm retrieval. MicroRNAs, long non-coding RNAs, circRNAs, tRNA-derived small RNAs (tsRNAs), Anti-Mullerian hormone (AMH), inhibin B, and certain metabolites have been studied as seminal plasma biomarkers to predict the success of sperm retrieval in men with NOA. However, the current evidence is not sufficient to allow the routine use of these biomarkers.
Q3. How does the use of advanced imaging techniques, like multiphoton microscopy, enhance the identification of active spermatogenesis during mTESE?
Dr. Dursun: mTESE is the first choice for sperm retrieval in men with NOA. However, there are difficulties in distinguishing between seminiferous tubules with normal and abnormal spermatogenesis. Some advanced imaging techniques, such as multiphoton microscopy (MPM), Raman spectroscopy (RS), and full-field optical coherence tomography (FFOCT), have been developed to make this distinction and potentially increase the success of sperm retrieval. However, these methods have not yet entered clinical use and remain at the experimental stage.
Q4. What are the key intraoperative factors that influence the success of mTESE in patients with NOA?
Dr. Dursun: In patients with non-obstructive azoospermia, success in sperm retrieval is enhanced by the seminiferous tubule structure and microscopy. It is known that the sperm retrieval rate with mTESE is 1.5 times higher than with the conventional method. Additionally, as the calibration of seminiferous tubules increases, the sperm retrieval rate also increases. As a surgical method, longitudinal tunical incision followed by intratunical longitudinal and transverse slicing yields higher sperm retrieval rates.
Q5. How do outcomes of salvage mTESE compare to initial mTESE procedures in patients who have previously failed TESE?
Dr. Dursun: The sperm retrieval rate with the first mTESE is around 50%. Therefore, in about h alf of the patients, sperm is not found, and salvage micro-TESE is needed. Studies have reported sperm retrieval rates with salvage mTESE ranging from 12% to 79%. Identifying parameters that affect success in salvage surgery can reduce TESE complications that may lead to potential tissue loss. A meta-analysis showed that younger age, lower levels of FSH and LH, smaller testicular volume, and histopathologically diagnosed hypospermatogenesis are associated with higher success rates in salvage micro-TESE surgery.
Murat Dursun, MD, FEBU: Short Biography
Murat Dursun, MD, FEBU
Associate Professor
Section of Andrology,
Department of Urology,
Faculty of Medicine,
University of Istanbul, Turkey
e-mail: murat.dursun@istanbul.edu.tr
ORCID id:
0000-0001-9115-7203
Dr. Murat Dursun is an Associate Professor at the University of Istanbul, Faculty of Medicine, Department of Urology, Section of Andrology. He graduated from the University of Istanbul in 2008 and completed his Urology residency at Okmeydani Training and
Research Hospital in 2014. Dr. Dursun has been a Fellow of the European Board of Urology (FEBU) since 2014. He is a member of the Turkish Association of Urology, the Turkish Association of Andrology, and the Global Andrology Forum. To enhance his knowledge and experience, he completed a three-month fellowship at Charité – Universitätsmedizin Berlin in 2022. His research
and clinical activities focus on male infertility, male sexual function (including erectile dysfunction, priapism, and Peyronie’s disease), and prostatic diseases (BPH, prostate cancer). He has published over 60 articles on PubMed, with 657 citations, and has an h-index of 16 in Scopus.
My Viewpoint on mTESE Masterclass for a World-Wide Audience
Dr. Mustafa Kadihasanoglu responds to questions from Ashok
Q1. What are the best practices for training and skill development in mTESE for reproductive surgeons?
Dr. Kadihasanoglu:The appropriate assessment of potential patients and the effective implementation of the mTESE procedure necessitate a wide range of knowledge and abilities. A surgeon's experience and training are essential for a successful sperm retrieval procedure in mTESE, as there are significant learning curves involved. This makes proper training for the procedure especially important. A successful mTESE training program should incorporate both case discussions and didactic lectures. The program comprises a sequence of didactic lectures that commence with an overview of the mTESE technique's anatomy and tips and tricks. The lectures conclude with an array of tactics, strategies, and pearls that are intended to optimize mTESE outcomes in diverse clinical scenarios. Case studies of varied, complex non-obstructive azoospermia cases are presented after these didactic lectures. These cases represent the challenging conditions and heterogeneous, contentious situations that the andrology team may encounter when managing non-obstructive azoospermia.
Q2. How does the presence of conditions like Klinefelter syndrome affect the likelihood of successful sperm retrieval through mTESE?
Dr. Kadihasanoglu:A congenital trisomy of male sex chromosomes, Klinefelter syndrome (KS) is typified by the presence of one or more extra X chromosomes and manifests phenotypically as hypergonadotropic hypogonadism and testicular failure. KS accounts for approximately 10% of patients with secretory azoospermia and is the most common chromosomal abnormality in infertile individuals. The majority of KS patients are infertile and have secretory azoospermia. The successful spermatozoa recovery (SSR) from the seminiferous tubules has also been made possible by the presence of focal spermatogenesis in KS patients. KS patients have tubular sclerosis and atrophy, complete and incomplete germ-cell aplasia, and complete and incomplete maturation arrest. In comparison to unsuccessful sperm retrieval cases, several patient characteristics were found to be associated with SSR cases. According to multiple studies, there is a substantial correlation between SSR and reduced age, shorter infertility times, lower FSH levels, higher T levels, larger testicular volumes, and the presence of 46 XY spermatogonia.
Dr. Kadihasanoglu:The sperm retrieval rates and associated clinical outcomes for patients with various causes of non-obstructive azoospermia have not been reported by a systematic study. The average sperm retrieval rates are between 40-60% in several studies. Men with cryptorchidism had an excellent chance of having their sperm recovered during a m-TESE procedure, according to earlier studies. The most significant genetic cause of male infertility is Y chromosome microdeletions, and in these NOA patients, AZFc represents over 60% of all AZF microdeletions. Since these men usually have sperm in their testes, many studies
Dr. Kadihasanoglu:The focal sperm-producing regions of the testis are not identified during the standard TESE technique's blind execution until the tissue has been removed from the patient. Before their removal, sperm-containing areas in testicular tubules are identified through microdissection. Direct examination of each seminiferous tubule allows for the identification of spermatogenically active regions within the testicle. The basic idea behind this method is straightforward: seminiferous tubules with multiple developing germ cells rather than just Sertoli cells will probably be larger and more opaque than tubules that are not producing sperm. mTESE using surgical magnification is associated with improved sperm retrieval for men with NOA over that achieved with previously described biopsy techniques. Magnification—particularly with an operating microscope—has been
Dr. Kadihasanoglu:Proper assessment of prospective patients and effective implementation of the mTESE procedure require a broad range of knowledge and skills. These include understanding testicular histology, hormonal and genetic testing, testicular
Mustafa Kadihasanoglu, MD, FEBU, FACS: Short Biography
Mustafa Kadihasanoglu,
MD, FEBU, FACS
Associate Professor Department of Urology, Cerrahpaşa Faculty of Medicine, Istanbul University-Cerrahpaşa, Istanbul, Turkey
E-mail: m.kadihasanoglu@iuc.edu.tr
ORCID:
0000-0001-5109-5319
Dr. Mustafa Kadıhasanoğlu is an Associate Professor in the Department of Urology at Cerrahpaşa Faculty of Medicine, Istanbul University-Cerrahpaşa, Istanbul, Turkey. He did a general surgery rotation at Heidelberg University and worked as a research fellow at the Technical University of Munich. At Vanderbilt University (USA), he completed a research fellowship in endourology and minimally invasive treatments. He has published over 60 scientific articles in SCIE journals and given over 100 presentations. He is the section editor of BMC Urology journal and the Editor-in-chief of Comprehensive Medicine. He holds the European and Turkish Urology Board Certificates and is a member of board of examiners of European Board of Urology. Mustafa is a Fellow of the American College of Surgeons (FACS) and an active member of the ISSM and the ESSM.
Mustafa is a member of the board of the Turkish Society of Andrology and an active member of several professional societies including the GAF. He is pursuing a PhD at Istanbul University Aziz Sancar Institute of Experimental Medicine's molecular medicine doctorate program.
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