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Mei Y, Ji N, Feng X, Xu R, Xue D. Don't wait any longer, conceive in time: a systematic review and meta-analysis based on semen parameters after varicocelectomy. Int Urol Nephrol 2024:10.1007/s11255-024-04080-y. [PMID: 38761331 DOI: 10.1007/s11255-024-04080-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Accepted: 05/11/2024] [Indexed: 05/20/2024]
Abstract
BACKGROUND Varicocelectomy was considered to be beneficial to patients with varicocele-related infertility. However, there are only a few researchers who have explored the relationship between better timing and postoperative semen improvement in patients. METHODS We conducted this meta-analysis by enrolling published prospective studies to find out the best waiting time after varicocelectomy to wait for better improvement of semen quality. An extensive search was conducted in PubMed, Web of Science, and Cochrane Library to identify eligible studies. The included studies were then analyzed comprehensively using STATA software and standardized mean differences (SMDs) and their corresponding 95% confidence intervals were calculated. RESULTS Our comprehensive analysis showed that after varicocelectomy, follow-up results within 3 months or longer showed a significant improvement in semen parameters compared to the preoperative period. Notably, no further improvement in semen parameters was observed when the follow-up period reached six months or longer (semen volume: WMD: - 0.07 (- 0.29, 0.16); sperm concentration: WMD: - 1.33 (- 2.33, - 4.99); sperm motility: WMD: 2.31 (- 0.55, 5.18); sperm morphology: WMD: 1.29 (- 0.66, 3.24); sperm total motile count: WMD: 3.95 (- 6.28, 14.19)). CONCLUSIONS Three months after varicocelectomy may be the optimal time for semen parameters compared to six months or even longer, which means it is also the preferable time for conception. However, more well-designed prospective studies are needed in the future to validate our conclusion.
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Affiliation(s)
- Yangyang Mei
- Department of Urology, Jiangyin People's Hospital of Jiangsu Province, Jiangyin, Jiangsu, China
| | - Nuo Ji
- Department of Urology, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China
| | - Xingliang Feng
- Department of Urology, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China.
| | - Renfang Xu
- Department of Urology, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China.
| | - Dong Xue
- Department of Urology, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China.
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2
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White J, Cartaya S, Black K, Ledesma B, Arbelaez MCS, Muthigi A, Ramasamy R. Are varicoceles the holy grail of Andrology? Int J Impot Res 2024; 36:177-180. [PMID: 37069437 DOI: 10.1038/s41443-023-00696-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 03/29/2023] [Accepted: 04/03/2023] [Indexed: 04/19/2023]
Abstract
Varicoceles are a common condition affecting up to 15% of men in the general population, and up to 40% of men with infertility. A varicocele is an abnormal dilation of the veins within the scrotum, which can lead to reduced sperm production and testicular damage, resulting in infertility. Despite the prevalence of varicoceles, much remains to be discovered about their diagnosis, treatment, and long-term impact. Varicoceles are considered the 'holy grail' of Andrology because they represent a complex, multifactorial condition that requires a comprehensive approach to diagnosis and treatment. While surgical repair of varicoceles has been shown to improve fertility outcomes in some cases, there is still debate about the best approach to diagnosis and treatment, and long-term outcomes are not well understood. Advances in diagnostic imaging, such as color Doppler ultrasound, have improved our ability to identify varicoceles, but more research is needed to fully understand the impact of this condition on male fertility and overall health. As such, varicoceles represent an ongoing area of investigation in Andrology with much progress to be made in terms of diagnosis, treatment, and long-term impact.
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Affiliation(s)
- Joshua White
- University of Miami Miller School of Medicine, Urology, Miami, FL, USA.
| | - Sofia Cartaya
- University of South Florida, Undergraduate Education, Tampa Bay, FL, USA
| | | | - Braian Ledesma
- University of Miami Miller School of Medicine, Urology, Miami, FL, USA
| | | | - Akhil Muthigi
- University of Miami Miller School of Medicine, Urology, Miami, FL, USA
| | - Ranjith Ramasamy
- University of Miami Miller School of Medicine, Urology, Miami, FL, USA
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3
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Lira Neto FT, Roque M, Esteves SC. Effect of varicocele and varicocelectomy on sperm deoxyribonucleic acid fragmentation rates in infertile men with clinical varicocele. Minerva Obstet Gynecol 2024; 76:49-69. [PMID: 36222786 DOI: 10.23736/s2724-606x.22.05169-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Varicocele is the leading cause of male infertility. It can affect sperm quantity and quality through various non-mutually exclusive pathophysiological mechanisms, mainly oxidative stress. Excessive production of reactive oxygen species may overwhelm the sperm's defenses against oxidative stress and harm the sperm's DNA. Excessive sperm DNA breaks, so-called sperm DNA fragmentation, result from the oxidative stress cascade and are commonly found in the ejaculates of men with varicocele and fertility-related issues. Measuring sperm DNA fragmentation can provide valuable information on the extent of harm and might help select candidates for surgical treatment. Varicocelectomy is beneficial for alleviating oxidative stress-associated infertility and improving sperm DNA integrity. However, reproductive outcomes of infertile men with elevated sperm DNA fragmentation rates and surgically treated varicoceles remain poorly studied, and there is a need for well-designed trials to determine the impact of sperm DNA fragmentation reduction on natural and medically assisted reproduction.
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Affiliation(s)
- Filipe T Lira Neto
- AndrosRecife, Andrology Clinic, Recife, Brazil
- Department of Urology, Prof. Fernando Figueira Institute of Integrative Medicine, Recife, Brazil
| | - Matheus Roque
- Department of Reproductive Medicine, Mater Prime, São Paulo, Brazil
| | - Sandro C Esteves
- ANDROFERT, Andrology and Human Reproduction Clinic, Referral Center for Male Reproduction, Campinas, Brazil -
- Division of Urology, Department of Surgery, University of Campinas (UNICAMP), Campinas, Brazil
- Department of Clinical Medicine, Faculty of Health, Aarhus University, Aarhus, Denmark
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Kaltsas A, Dimitriadis F, Zachariou D, Zikopoulos A, Symeonidis EN, Markou E, Tien DMB, Takenaka A, Sofikitis N, Zachariou A. From Diagnosis to Treatment: Comprehensive Care by Reproductive Urologists in Assisted Reproductive Technology. Medicina (Kaunas) 2023; 59:1835. [PMID: 37893553 PMCID: PMC10608107 DOI: 10.3390/medicina59101835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 09/28/2023] [Accepted: 10/12/2023] [Indexed: 10/29/2023]
Abstract
Infertility is a global health concern, with male factors playing an especially large role. Unfortunately, however, the contributions made by reproductive urologists in managing male infertility under assisted reproductive technology (ART) often go undervalued. This narrative review highlights the important role played by reproductive urologists in diagnosing and treating male infertility as well as any barriers they face when providing services. This manuscript presents a comprehensive review of reproductive urologists' role in managing male infertility, outlining their expertise in diagnosing and managing male infertility as well as reversible causes and performing surgical techniques such as sperm retrieval. This manuscript investigates the barriers limiting urologist involvement such as limited availability, awareness among healthcare professionals, and financial constraints. This study highlights a decrease in male fertility due to lifestyle factors like sedentary behavior, obesity, and substance abuse. It stresses the significance of conducting an evaluation process involving both male and female partners to identify any underlying factors contributing to infertility and to identify patients who do not require any interventions beyond ART. We conclude that engaging urologists more effectively in infertility management is key to optimizing fertility outcomes among couples undergoing assisted reproductive technology treatments and requires greater education among healthcare providers regarding the role urologists and lifestyle factors that could have an effect on male fertility.
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Affiliation(s)
- Aris Kaltsas
- Department of Urology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110 Ioannina, Greece; (A.K.); (A.Z.); (N.S.)
| | - Fotios Dimitriadis
- Department of Urology, Faculty of Medicine, School of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (F.D.); (E.N.S.)
| | - Dimitrios Zachariou
- Third Orthopaedic Department, National and Kapodestrian University of Athens, KAT General Hospital, 14561 Athens, Greece;
| | - Athanasios Zikopoulos
- Department of Urology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110 Ioannina, Greece; (A.K.); (A.Z.); (N.S.)
| | - Evangelos N. Symeonidis
- Department of Urology, Faculty of Medicine, School of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (F.D.); (E.N.S.)
| | - Eleftheria Markou
- Department of Microbiology, University Hospital of Ioannina, 45500 Ioannina, Greece;
| | - Dung Mai Ba Tien
- Department of Andrology, Binh Dan Hospital, Ho Chi Minh City 70000, Vietnam;
| | - Atsushi Takenaka
- Division of Urology, Department of Surgery, School of Medicine, Faculty of Medicine, Tottori University, Yonago 683-8503, Japan;
| | - Nikolaos Sofikitis
- Department of Urology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110 Ioannina, Greece; (A.K.); (A.Z.); (N.S.)
| | - Athanasios Zachariou
- Department of Urology, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110 Ioannina, Greece; (A.K.); (A.Z.); (N.S.)
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Fallara G, Capogrosso P, Pozzi E, Belladelli F, Corsini C, Boeri L, Candela L, Schifano N, Dehò F, Castiglione F, Muneer A, Montorsi F, Salonia A. The Effect of Varicocele Treatment on Fertility in Adults: A Systematic Review and Meta-analysis of Published Prospective Trials. Eur Urol Focus 2023; 9:154-161. [PMID: 36151030 DOI: 10.1016/j.euf.2022.08.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 07/18/2022] [Accepted: 08/30/2022] [Indexed: 11/25/2022]
Abstract
CONTEXT The benefits and harms of varicocele treatment versus observation in adult infertile males are still controversial. OBJECTIVE To systematically pool the evidence on outcomes of varicocele treatment (any surgical or radiological) versus observation in adult infertile men. EVIDENCE ACQUISITION A systematic review and meta-analysis was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) statement. Only prospective randomized and nonrandomized studies were included until November 2021. The primary outcome was pregnancy rate; the secondary outcomes were improvements in sperm concentration, normal morphology, and progressive sperm motility after treatment compared to baseline. Men ≥18 yr of age with any-grade varicoceles were included. EVIDENCE SYNTHESIS Of 557 articles identified, 12 were eligible for inclusion, involving 1357 patients. Varicoceles were treated surgically in ten and radiologically in four studies. Varicocele treatment improved pregnancy rates (odds ratio 1.29; 95% confidence interval [CI] 1.00-1.65; p = 0.048) and sperm concentration (mean difference 12.34 million/ml, 95% CI 3.49-21.18; p = 0.006) compared with observation. Proportions of spermatozoa with normal morphology and progressive motility were not statistically different from those with observation. However, considering treatment arm only, sperm concentration, progressive motility, and normal sperm morphology were improved compared with baseline. A subgroup analysis showed that the benefit of varicocele treatment is evident in men with an abnormal semen analysis. The main limitation is represented by the heterogeneity of the included studies, mostly in terms of study population, fertility of the partner, outcome evaluation, lack of long-term outcomes, and intermediate/high risk of bias. CONCLUSIONS Treatment of any-grade varicoceles may improve pregnancy rates and sperm concentration in adult infertile men, while benefits in sperm motility and normal morphology are less clear. PATIENT SUMMARY In this systematic review and meta-analysis of all published prospective trials on varicocele treatment, significant evidence emerged on its benefit in terms of improved pregnancy rates and sperm concentration, while benefits in sperm motility and morphology are less clear.
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Affiliation(s)
- Giuseppe Fallara
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy; Vita-Salute San Raffaele University, Milan, Italy
| | - Paolo Capogrosso
- ASST-Sette Laghi, Circolo & Fondazione Macchi Hospital, University of Insubria, Varese, Italy
| | - Edoardo Pozzi
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy; Vita-Salute San Raffaele University, Milan, Italy
| | - Federico Belladelli
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy; Vita-Salute San Raffaele University, Milan, Italy
| | - Christian Corsini
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy; Vita-Salute San Raffaele University, Milan, Italy
| | - Luca Boeri
- Department of Urology, IRCCS Foundation Ca' Granda Ospedale Maggiore Policlinico, University of Milan, Milan, Italy
| | - Luigi Candela
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy; Vita-Salute San Raffaele University, Milan, Italy
| | - Nicolò Schifano
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Federico Dehò
- ASST-Sette Laghi, Circolo & Fondazione Macchi Hospital, University of Insubria, Varese, Italy
| | - Fabio Castiglione
- Department of Urology, University College London Hospitals, London, UK; Division of Surgery and Interventional Science, University College London, London, UK
| | - Asif Muneer
- Department of Urology, University College London Hospitals, London, UK; Division of Surgery and Interventional Science, University College London, London, UK; National Institute for Health Research (NIHR) Biomedical Research Centre, University College London Hospitals, London, UK
| | - Franceso Montorsi
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy; Vita-Salute San Raffaele University, Milan, Italy
| | - Andrea Salonia
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy; Vita-Salute San Raffaele University, Milan, Italy.
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6
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Wang S, Lu R, Shi H, Chen J, Sun M, Ding J, Lv Q, Wang C, Ren J, Zhou G, Tang Z. Safety and efficacy of acupuncture for varicocele-induced male infertility: a systematic review protocol. BMJ Open 2022; 12:e063381. [PMID: 36456023 PMCID: PMC9716984 DOI: 10.1136/bmjopen-2022-063381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
INTRODUCTION Varicocele (VC) is a common clinical disease in andrology. Among a number of ways for VC treatment, surgery is the most common one, but the measurable benefit of surgical repair was slight. A growing exploration of complementary therapies has been conducted in clinical research on acupuncture for VC, but there is no relevant systematic review and meta-analysis to assess the efficacy and safety of acupuncture for VC. METHODS AND ANALYSIS All relevant publications published from database inception through August 2022 will be searched in three English-language databases (Embase, CENTRAL, MEDLINE) and four Chinese-language databases (China National Knowledge Infrastructure, China Science and Technology Journal Database, Chinese Biomedical Literature Database and Wanfang Data). Randomised controlled trials in English and Chinese concerned with acupuncture for patients with VC will be included. The input clinical data will be processed by the Review Manager software (RevMan). The literature will be appraised with the Cochrane Collaboration risk of bias tool. The Grading of Recommendations Assessment, Development and Evaluation system (GRADE system) will be used to evaluate the quality of evidence. ETHICS AND DISSEMINATION This study is a secondary study based on clinical studies so it does not relate to any individual patient information or infringe the rights of participants. Hence no ethical approval is required. The results will be reported in peer-reviewed journals or disseminated at relevant conferences. PROSPERO REGISTRATION NUMBER CRD42022316005.
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Affiliation(s)
- Sijia Wang
- Department of Traditional Chinese Medicine, Yixing People's Hospital, Yixing, Jiangsu, China
| | - Rongchen Lu
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
| | - Hongshuo Shi
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
| | - Jiangnan Chen
- Department of Traditional Chinese Medicine, Yixing People's Hospital, Yixing, Jiangsu, China
| | - Miaomiao Sun
- Department of Traditional Chinese Medicine, Yixing People's Hospital, Yixing, Jiangsu, China
| | - Jing Ding
- Department of Traditional Chinese Medicine, Yixing People's Hospital, Yixing, Jiangsu, China
| | - Qiang Lv
- Department of Traditional Chinese Medicine, Yixing People's Hospital, Yixing, Jiangsu, China
| | - Chenyao Wang
- Department of Traditional Chinese Medicine, Yixing People's Hospital, Yixing, Jiangsu, China
| | - Jianjun Ren
- Department of Traditional Chinese Medicine, Yixing People's Hospital, Yixing, Jiangsu, China
| | - Guangming Zhou
- Department of Traditional Chinese Medicine, Yixing People's Hospital, Yixing, Jiangsu, China
| | - Zhian Tang
- Department of Traditional Chinese Medicine, Yixing People's Hospital, Yixing, Jiangsu, China
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Duran MB, Kizilkan Y, Senel S, Yikilmaz TN, Toksoz S. Can preoperative inflammatory markers predict the success of varicocelectomy? Andrologia 2022; 54:e14514. [PMID: 35753707 DOI: 10.1111/and.14514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Revised: 05/30/2022] [Accepted: 06/13/2022] [Indexed: 11/26/2022] Open
Abstract
The aim of this study was to evaluate the effect of inflammation on the success of varicocelectomy by using some inflammatory markers. Adult male patients aged ≥18 years who were evaluated for infertility, had abnormal parameters in at least two preoperative semen analyses and underwent subinguinal microscopic varicocelectomy were retrospectively evaluated. The patients were divided into two groups; those showing improvement in semen parameters were determined as Group A and those without improvement as Group B and compared with each other. A total of 102 patients were included in this study. Group A contained 32 (31.4%) patients while Group B had 70 (68.6%) patients. Monocyte/lymphocyte ratio (MLR) and neutrophil/lymphocyte ratio (NLR) were found to be statistically significantly higher in Group B (p = 0.014 and p = 0.028 respectively). Although preoperative sperm concentration and total motile sperm count were higher in Group B, postoperative all semen parameters were significantly higher in Group A. The cutoff points that were determined using the Youden test were <2.02 for NLR (AUC = 0.636, CI = 0.519-0.754; p = 0.028) and <0.22 for MLR (AUC = 0.652, CI = 0.531-0.773; p = 0.014). Pre-varicocelectomy low NLR and MLR values were found to be significant parameters in predicting the success of the surgery.
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Affiliation(s)
- Mesut Berkan Duran
- Department of Urology, Samsun Training and Research Hospital, Samsun, Turkey
| | | | - Samet Senel
- Department of Urology, Ankara City Hospital, Ankara, Turkey
| | | | - Serdar Toksoz
- Department of Urology, Hatay State Hospital, Hatay, Turkey
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Yaris M, Kilinc R. Effect of varicocelectomy on detailed sperm morphology parameters: An observational retrospective clinical cohort study. Medicine (Baltimore) 2022; 101:e29193. [PMID: 35512075 PMCID: PMC9276297 DOI: 10.1097/md.0000000000029193] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 03/09/2022] [Indexed: 01/04/2023] Open
Abstract
Although many studies suggest that varicocelectomy leads to improvement in semen parameters and morphology, its clinical efficacy remains controversial. The detailed morphological parameters described in the World Health Organization guidelines are important in terms of showing the effect of microsurgical subinguinal varicocelectomy on morphological changes.An observational, retrospective clinical cohort study was conducted with patients followed up from January 2018 to August 2021. This study included the data of 79 patients who met the criterion of undergoing at least 2 detailed morphological evaluations before and after surgery. All operations were performed by the same surgical team using the microsurgical subinguinal varicocelectomy technique.The mean age of the patients was 30.25 years. Of the patients, 63 underwent left-sided varicocelectomy and 16 underwent bilateral surgery. The sperm analysis revealed statistically significant increases in sperm volume (P = .006), sperm concentration (P = .003), total sperm count (P = .001), progressive sperm motility (P < .001), and normal morphology (P < .001). In the detailed morphological evaluation, except for the elongated head anomaly (P = .037), no other statistically significant changes were found in relation to sperm head, tail, and neck anomalies after surgery.This study makes an important contribution to the literature, being the first to use the subinguinal microscopic varicocelectomy technique in detailed morphological semen evaluation. We consider that detailed morphology examination in the selection and treatment of infertile patients may be useful in evaluating the efficacy of varicocelectomy.
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Choksi A, Harnisch B, Honig S. What Every Provider Should Know About the 2020–2021 Updated AUA/ASRM Guidelines on Male Factor Infertility. Curr Sex Health Rep 2022. [DOI: 10.1007/s11930-022-00325-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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10
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Morini D, Spaggiari G, Daolio J, Melli B, Nicoli A, De Feo G, Valli B, Viola D, Garganigo S, Magnani E, Pilia A, Polese A, Colla R, Simoni M, Aguzzoli L, Villani MT, Santi D. Improvement of sperm morphology after surgical varicocele repair. Andrology 2021; 9:1176-1184. [PMID: 33825345 PMCID: PMC8360177 DOI: 10.1111/andr.13012] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 03/11/2021] [Accepted: 03/31/2021] [Indexed: 12/14/2022]
Abstract
Background A causative relationship between varicocele and impairment of semen quality has been largely investigated in the context of male infertility, although its clinical benefit remains controversial. Objective To investigate the effect of varicocele correction on detailed morphologic microscopic semen parameters in a large homogeneous cohort of patients and to evaluate which factors could predict semen improvement after the surgical treatment. Materials and methods An observational, retrospective cohort study was carried out including all patients undergoing surgical treatment for varicocele from September 2011 to March 2020 in the same clinical centre. Enrolled males performed at least one semen analysis before and one after surgical varicocele correction. Primary outcome was the detailed morphologic microscopic sperm evaluation. Secondary outcomes were conventional semen analyses. Results A total of 121 males (mean age 24.6 ± 6.1 years) were enrolled. Using detailed morphologic microscopic sperm evaluation, a significant morphological improvement was recorded, with a reduction in head and tail abnormalities. Moreover, a significant increase in sperm concentration (p = 0.015) and percentage of progressive and total motility (p = 0.022 and p = 0.039) were observed after surgery. The multivariate logistic analysis identified the ultrasonography varicocele degree before surgery as a main predictor of the sperm concentration improvement (p = 0.016), with the highest improvement for varicocele of I and II degree. Discussion For the first time, the detailed morphologic microscopic sperm evaluation highlights a relevant reduction in sperm abnormalities after varicocele surgery, showing its potential application in clinical practice.
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Affiliation(s)
- Daria Morini
- Department of Obstetrics and Gynaecology, Fertility Centre, Arcispedale Santa Maria Nuova, Azienda Unità Sanitaria Locale-IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Giorgia Spaggiari
- Unit of Endocrinology, Department of Medical Specialties, Ospedale Civile of Baggiovara, Azienda Ospedaliero-Universitaria of Modena, Modena, Italy
| | - Jessica Daolio
- Department of Obstetrics and Gynaecology, Fertility Centre, Arcispedale Santa Maria Nuova, Azienda Unità Sanitaria Locale-IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Beatrice Melli
- Department of Obstetrics and Gynaecology, Fertility Centre, Arcispedale Santa Maria Nuova, Azienda Unità Sanitaria Locale-IRCCS di Reggio Emilia, Reggio Emilia, Italy.,International PhD School in Clinical and Experimental Medicine (CEM), University of Modena and Reggio Emilia, Modena, Italy
| | - Alessia Nicoli
- Department of Obstetrics and Gynaecology, Fertility Centre, Arcispedale Santa Maria Nuova, Azienda Unità Sanitaria Locale-IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Gaetano De Feo
- Department of Obstetrics and Gynaecology, Fertility Centre, Arcispedale Santa Maria Nuova, Azienda Unità Sanitaria Locale-IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Barbara Valli
- Department of Obstetrics and Gynaecology, Fertility Centre, Arcispedale Santa Maria Nuova, Azienda Unità Sanitaria Locale-IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Domenico Viola
- Department of Urology, Azienda Unità Sanitaria Locale-IRCCS di Reggio Emilia, Arcispedale Santa Maria Nuova, Reggio Emilia, Italy
| | - Simona Garganigo
- Chemical-Clinical and Endocrinology Analysis Laboratory Azienda Unità Sanitaria Locale-IRCCS di Reggio Emilia, Arcispedale Santa Maria Nuova, Reggio Emilia, Italy
| | - Elena Magnani
- Chemical-Clinical and Endocrinology Analysis Laboratory Azienda Unità Sanitaria Locale-IRCCS di Reggio Emilia, Arcispedale Santa Maria Nuova, Reggio Emilia, Italy
| | - Annalisa Pilia
- Chemical-Clinical and Endocrinology Analysis Laboratory Azienda Unità Sanitaria Locale-IRCCS di Reggio Emilia, Arcispedale Santa Maria Nuova, Reggio Emilia, Italy
| | - Alessandra Polese
- Chemical-Clinical and Endocrinology Analysis Laboratory Azienda Unità Sanitaria Locale-IRCCS di Reggio Emilia, Arcispedale Santa Maria Nuova, Reggio Emilia, Italy
| | - Rossana Colla
- Chemical-Clinical and Endocrinology Analysis Laboratory Azienda Unità Sanitaria Locale-IRCCS di Reggio Emilia, Arcispedale Santa Maria Nuova, Reggio Emilia, Italy
| | - Manuela Simoni
- Unit of Endocrinology, Department of Medical Specialties, Ospedale Civile of Baggiovara, Azienda Ospedaliero-Universitaria of Modena, Modena, Italy.,Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Lorenzo Aguzzoli
- Department of Obstetrics and Gynaecology, Fertility Centre, Arcispedale Santa Maria Nuova, Azienda Unità Sanitaria Locale-IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Maria Teresa Villani
- Department of Obstetrics and Gynaecology, Fertility Centre, Arcispedale Santa Maria Nuova, Azienda Unità Sanitaria Locale-IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Daniele Santi
- Unit of Endocrinology, Department of Medical Specialties, Ospedale Civile of Baggiovara, Azienda Ospedaliero-Universitaria of Modena, Modena, Italy.,Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
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11
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Schlegel PN, Sigman M, Collura B, De Jonge CJ, Eisenberg ML, Lamb DJ, Mulhall JP, Niederberger C, Sandlow JI, Sokol RZ, Spandorfer SD, Tanrikut C, Treadwell JR, Oristaglio JT, Zini A. Diagnosis and treatment of infertility in men: AUA/ASRM guideline part II. Fertil Steril 2021; 115:62-9. [DOI: 10.1016/j.fertnstert.2020.11.016] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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12
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Liu MY, Gray E, Hahn ME, Shiehmorteza M. Scrotal Ultrasound: Updates on Testicular Microlithiasis, Incidental Non-Palpable Lesions, Varicoceles and Testicular Infarction. Curr Radiol Rep 2020. [DOI: 10.1007/s40134-020-00372-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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13
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Ok F, Erdogan O, Durmus E. Can preoperative gonadotropin and testosterone levels predict the success of varicocelectomy? Andrologia 2020; 52:e13887. [PMID: 33125763 DOI: 10.1111/and.13887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 09/29/2020] [Accepted: 10/04/2020] [Indexed: 11/26/2022] Open
Abstract
We examined the effects of preoperative hormonal values on varicocelectomy success. A total of 136 patients who underwent varicocelectomy for infertility in our clinic were analysed retrospectively. Improvement in semen quality was defined as >50% increase in post-operative total motile sperm count (TMSC) in those with preoperative TMSC >5 million and at least 100% increase in those with <5 million. The patients were divided into two groups as benefiting from the treatment (Group A) and no benefits (Group B). The best cut-off value for follicle-stimulating hormone (FSH) and the luteinising hormone/testosterone ratio (LTR) that can predict varicocelectomy success were 7.01 and 0.016 with an area under the curve of 0.844 and 0.856 respectively. The highest sensitivities and specificities of FSH and LTR were 0.845 and 0.788 and 0.821 and 0.846 respectively. Binary logistic regression analysis showed FSH (odds ratio [OR]: 3.7; p < .001) and LTR (OR: 5.2; p < .001) as independent predictive factors in predicting varicocelectomy success. Our study demonstrated that low FSH (7.01 IU/L) and LTR (<.016) can be a useful preoperative predictive tool to help identify men who benefit most from varicocelectomy in infertile patients with varicocele.
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Affiliation(s)
- Fesih Ok
- Urology Department, Siirt Training and Research Hospital, Siirt, Turkey
| | - Omer Erdogan
- Urology Department, Siirt Training and Research Hospital, Siirt, Turkey
| | - Emrullah Durmus
- Urology Department, Siirt Training and Research Hospital, Siirt, Turkey
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14
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Esteves SC, Zini A, Coward RM, Evenson DP, Gosálvez J, Lewis SEM, Sharma R, Humaidan P. Sperm DNA fragmentation testing: Summary evidence and clinical practice recommendations. Andrologia 2020; 53:e13874. [PMID: 33108829 PMCID: PMC7988559 DOI: 10.1111/and.13874] [Citation(s) in RCA: 89] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 09/06/2020] [Accepted: 09/13/2020] [Indexed: 12/12/2022] Open
Abstract
We herein summarise the evidence concerning the impact of sperm DNA fragmentation in various clinical infertility scenarios and the advances on sperm DNA fragmentation tests. The collected evidence was used to formulate 41 recommendations. Of these, 13 recommendations concern technical aspects of sperm DNA fragmentation testing, including pre‐analytical information, clinical thresholds and interpretation of results. The remaining 28 recommendations relate to indications for sperm DNA fragmentation testing and clinical management. Clinical scenarios like varicocele, unexplained infertility, idiopathic infertility, recurrent pregnancy loss, intrauterine insemination, in vitro fertilisation/intracytoplasmic sperm injection, fertility counselling for men with infertility risk factors and sperm cryopreservation have been contemplated. The bulk evidence supporting the recommendations has increased in recent years, but it is still of moderate to low quality. This guideline provides clinicians with advice on best practices in sperm DNA fragmentation testing. Also, recommendations are provided on possible management strategies to overcome infertility related to sperm DNA fragmentation, based on the best available evidence. Lastly, we identified gaps in knowledge and opportunities for research and elaborated a list of recommendations to stimulate further investigation.
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Affiliation(s)
- Sandro C Esteves
- ANDROFERT, Andrology and Human Reproduction Clinic, Referral Center for Male Reproduction, Campinas, SP, Brazil.,Department of Surgery (Division of Urology), University of Campinas (UNICAMP), Campinas, SP, Brazil.,Faculty of Health, Aarhus University, Aarhus, Denmark
| | - Armand Zini
- Division of Urology, Department of Surgery, St. Mary's Hospital, McGill University, Montreal, Québec, Canada
| | - Robert Matthew Coward
- Department of Urology, University of North Carolina, Chapel Hill, NC, USA.,UNC Fertility, Raleigh, NC, USA
| | - Donald P Evenson
- SCSA Diagnostics, Brookings, SD, USA.,Sanford Medical School, University of South Dakota, Sioux Falls, SD, USA
| | - Jaime Gosálvez
- Unit of Genetics, Department of Biology, Universidad Autónoma de Madrid, Madrid, Spain
| | - Sheena E M Lewis
- Queens University Belfast, Belfast, UK.,Examenlab Ltd., Belfast, UK
| | - Rakesh Sharma
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Peter Humaidan
- Faculty of Health, Aarhus University, Aarhus, Denmark.,Fertility Clinic Skive, Skive Regional Hospital, Skive, Denmark
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15
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Tsampoukas G, Khan MF, Katsouri A, Akhter W, Moussa M, Deliveliotis K, Papatsoris A, Buchholz N. L-carnitine as primary or adjuvant treatment in infertile patients with varicocele. A systematic review. ACTA ACUST UNITED AC 2020; 92. [PMID: 33016059 DOI: 10.4081/aiua.2020.3.263] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 06/08/2020] [Indexed: 11/23/2022]
Abstract
BACKGROUND Varicocele has been found to impair the function of the epididymis resulting in subfertility whereas the varicocelectomy can resolve the phenomenon. L-carnitine is regarded as a biomarker for the function of the epididymis and has been found in reduced concentrations in infertile patients of various causes, including infertile men with varicocele. It seems that Lcarnitine and varicocele share clinical significance and the area of research looks promising. OBJECTIVE To identify the role of L-carnitine in the treatment of varicocele. MATERIALS AND METHODS A systematic search was performed in Pubmed/Medline with the terms (L-carnitine) and (varicocele) and (L-carnitine) and (varicocelectomy). Inclusion criteria were studies reported outcomes of L-carnitine administration alone or in duet, as primary or adjuvant treatment to varicocele. Exclusion criteria were non-English language and animal studies. Studies using L-carnitine as part of a panel of therapeutic agents were avoided. RESULTS Only four suitable studies were identified for discussion. In one randomized study, the combination of L-carnitine and cinnoxicam improved semen parameters in patients with non-high-grade varicocele compared to L-carnitine alone and had a favourable effect on pregnancy rates but the effect of grade is unknown. In another study, as an adjuvant treatment to varicocelectomy, L-carnitine showed no clear benefit. Finally, in comparison to surgery, the results are inconclusive; two studies showed some benefit might be expected in low-grade or subclinical varicocele, but surgery appears superior. CONCLUSIONS The evidence regarding the role of L-carnitine as a primary or adjuvant treatment of varicocele is sparse. The pathophysiological significance of L-carnitine implicates a potential role of the molecule in the management of varicocele, but the evidence so far is controversial for any recommendations. L-carnitine might be taken into consideration in selected cases; however, further search is needed in order the optimal role of L-carnitine in infertile patients with varicocele to be clarified.
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Affiliation(s)
- Georgios Tsampoukas
- U-merge Ltd. (Urology for emerging countries), London; Department of Urology, Princess Alexandra Hospital, Harlow.
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16
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Birowo P, Rahendra Wijaya J, Atmoko W, Rasyid N. The effects of varicocelectomy on the DNA fragmentation index and other sperm parameters: a meta-analysis. Basic Clin Androl 2020; 30:15. [PMID: 32944248 PMCID: PMC7488296 DOI: 10.1186/s12610-020-00112-6] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 08/17/2020] [Indexed: 01/04/2023] Open
Abstract
Background Varicocele is one of the most common causes of reversible male infertility, and 15% of the varicocele patients with normal semen analysis are diagnosed as infertile. According to the current guidelines, varicocelectomy is indicated based on abnormal sperm parameters and not abnormal DNA fragmentation index (DFI) values. Thus, in this study, we performed a meta-analysis of the effects of varicocelectomy on the DFI and other conventional sperm parameters, and determined whether DFI could be used to indicate varicocelectomy for varicocele patients. Results Through an electronic search of the PubMed, Scopus, EBSCO, and Cochrane databases, we included 7 prospective studies including a total of 289 patients in this meta-analysis. The results showed that varicocelectomy significantly reduced DNA fragmentation (mean difference: − 6.86; 95% confidence interval [CI]: − 10.04, − 3.69; p < 0.00001) and improved sperm concentration (mean difference: 9.59; 95% CI: 7.80, 11.38; p < 0.00001), progressive motility (mean difference: 8.66; 95% CI: 6.96, 10.36; p < 0.00001), and morphology (mean difference: 2.73; 95% CI: 0,65, 4.80; p = 0.01). Conclusion Varicocelectomy reduced DNA fragmentation and improved sperm concentration, progressive motility, and morphology. Additionally, the analysis showed that an abnormal DFI measurement should be considered as an indication for varicocelectomy.
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Affiliation(s)
- Ponco Birowo
- Department of Urology, Faculty of Medicine Universitas Indonesia, Cipto Mangunkusumo Hospital, Pangeran Diponegoro Street No. 71, Senen Subdistrict, Central Jakarta District, Jakarta, 10430 Indonesia
| | - J Rahendra Wijaya
- Department of Urology, Faculty of Medicine Universitas Indonesia, Cipto Mangunkusumo Hospital, Pangeran Diponegoro Street No. 71, Senen Subdistrict, Central Jakarta District, Jakarta, 10430 Indonesia
| | - Widi Atmoko
- Department of Urology, Faculty of Medicine Universitas Indonesia, Cipto Mangunkusumo Hospital, Pangeran Diponegoro Street No. 71, Senen Subdistrict, Central Jakarta District, Jakarta, 10430 Indonesia
| | - Nur Rasyid
- Department of Urology, Faculty of Medicine Universitas Indonesia, Cipto Mangunkusumo Hospital, Pangeran Diponegoro Street No. 71, Senen Subdistrict, Central Jakarta District, Jakarta, 10430 Indonesia
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17
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Gondokusumo JC, Butaney M, Balasubramanian A, Beilan JA, Tatem AJ, Thirumavalavan N, Pastuszak AW, Lipshultz LI. The use of scrotal ultrasound in the evaluation of varicoceles: A survey study of reproductive specialists. Can Urol Assoc J 2020; 14:E358-E362. [PMID: 32209215 DOI: 10.5489/cuaj.6147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Urologists use ultrasound in the male infertility workup to evaluate scrotal contents and objectively identify varicoceles if their presence is questionable on physical examination. We assessed practice patterns and diagnostic criteria of male reproductive urologists using ultrasound to evaluate varicoceles. METHODS An anonymous online survey was sent to the Society for Male Reproduction and Urology (SMRU) members. We queried respondents about ultrasonographic criteria and ultrasound techniques employed in varicocele evaluation. Chi-squared was used to determine association between categorical variables. RESULTS In total, 110/320 (34.4%) SMRU members responded. Sixty percent of respondents (66/110) reported performing scrotal ultrasound; 92.4 % (61/66) were attending urologists and 87.9% (58/66) completed an andrology fellowship. A total of 37.9% (25/66) performed their own ultrasound, while the remainder had ultrasound performed by an alternate practitioner. Among those performing their own ultrasound, 95.5% (21/22) measured varicocele venous diameter compared to 76% (29/38) when another practitioner performed the ultrasound. Venous diameter used to define a varicocele ranged from 2-4 mm. Although 80% (49/61) of respondents assessed retrograde flow during ultrasound, only 52.5% reported that retrograde flow was required for varicocele diagnosis. Almost all (60/61) indicated they would fix palpable varicoceles in patients with abnormal semen parameters. Fewer (42.6%, 26/61) respondents stated they would repair varicoceles found exclusively on ultrasound. CONCLUSIONS Ultrasound is commonly employed by male reproductive urologists to diagnose varicoceles. We identified that practitioners use various ultrasonographic criteria and techniques for varicocele diagnosis. Study limitations include recall bias and high degree of specialization among respondents.
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Affiliation(s)
- Jabez C Gondokusumo
- Scott Department of Urology, Baylor College of Medicine, Houston, TX, United States
| | - Mohit Butaney
- Department of Urology, Mayo Clinic, Rochester, MN, United States
| | | | - Jonathan A Beilan
- Scott Department of Urology, Baylor College of Medicine, Houston, TX, United States
| | - Alexander J Tatem
- Scott Department of Urology, Baylor College of Medicine, Houston, TX, United States
| | - Nannan Thirumavalavan
- University Hospitals Urology Institute Case Western Reserve University, Cleveland, OH, United States
| | - Alexander W Pastuszak
- Division of Urology, Department of Surgery, University of Utah School of Medicine, Salt Lake City, UT, United States
| | - Larry I Lipshultz
- Scott Department of Urology, Baylor College of Medicine, Houston, TX, United States
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18
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Tsampoukas G, Dellis A, Papatsoris A. Bilateral disease and intratesticular haemodynamics as markers of dyspermia in patients with subclinical varicocele: A prospective study. Arab J Urol 2019; 17:298-304. [PMID: 31723447 PMCID: PMC6830200 DOI: 10.1080/2090598x.2019.1647676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Accepted: 06/24/2019] [Indexed: 11/28/2022] Open
Abstract
Objective: To study scrotal ultrasonographic characteristics in patients with subclinical varicocele (SV) and investigate their relationship with semen parameters. Patients and methods: In all, 56 men with SV were recruited and divided into two groups, according to their semen characteristics. Group A, comprised 34 men with normal semen analysis; and Group B, comprised 22 men who carried at least one abnormality, regarding sperm concentration, motility and morphology. Between the two groups we compared: age; body mass index (BMI); semen pH and semen volume; total testicular volume (TTV); maximal vein diameter (MVD) and degree of reflux; mean values of peak-systolic velocity (PSV), end-diastolic velocity (EDV), and resistive index (RI) of the intratesticular arteries; whether bilateral SV; and serum testosterone and follicle-stimulating hormone (FSH) levels. Results: Asthenospermia was present in all patients in Group B; 10 patients had asthenospermia only, six patients were astheno-oligospermic and six patients had astheno-oligo-teratospermia. Age, BMI, semen pH and volume, TTV, MVD and degree of reflux did not differ significantly between the two groups (P > 0.05). However, EDV, PSV and RI were significantly different (P < 0.05). Bilateral SV was significantly more frequent in patients in Group B (P < 0.05). Finally, FSH was elevated in Group B (P < 0.05), whereas testosterone was normal in both groups, albeit significantly lower in men with abnormal semen analyses (P < 0.05). Conclusion: Classic ultrasonographic characteristics in men with SV, such as venous size or degree of reflux, were insufficient to distinguish patients with abnormal semen analysis. However, bilateral disease and intratesticular haemodynamics differed significantly in patients with SV and abnormal semen analysis. Abbreviations: BMI: body mass index; CDU: colour Doppler ultrasonography; EDV: end-diastolic velocity; MVD: maximal vein diameter; PSV: peak-systolic velocity; RI: resistive index; SV: subclinical varicocele; TTV: total testicular volume; US: ultrasonography
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Affiliation(s)
| | - Athanasios Dellis
- Urology, National and Kapodistrian University of Athens, Aretaieion Academic Hospital, Athens, Greece
| | - Athanasios Papatsoris
- Urology, National and Kapodistrian University of Athens, 'Sismanoglio' General Hospital, Maroussi, Athens, Greece
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19
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Palmisano F, Moreno-Mendoza D, Ievoli R, Veber-Moisés-Da Silva G, Gasanz-Serrano C, Villegas-Osorio JF, Peraza-Godoy MF, Vives Á, Bassas L, Montanari E, Ruiz-Castañé E, Sarquella-Geli J, Sánchez-Curbelo J. Clinical factors affecting semen improvement after microsurgical subinguinal varicocelectomy: which subfertile patients benefit from surgery? Ther Adv Urol 2019; 11:1756287219887656. [PMID: 31741684 PMCID: PMC6843731 DOI: 10.1177/1756287219887656] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 10/17/2019] [Indexed: 01/03/2023] Open
Abstract
Background The exact mechanism of varicocele-related infertility is still elusive, therefore, the current challenges for its management lie in determining which patients stand to benefit most from surgical correction. The authors aimed to assess the clinical factors affecting semen improvement after left microsurgical subinguinal varicocelectomy (MSV) in relation to patient age, ultrasound varicocele grading (USVG), and presence of a right subclinical varicocele (RSV). Methods From 2010 to 2017 a total of 228 infertile patients underwent left MSV for clinical varicocele. Descriptive statistics were used to describe the cohort and verify the surgical benefit in terms of semen improvement, in addition, subsets of patients were selected according to clinical covariates. Logistic regression modeling was applied to evaluate the presence of RSV, operative time, age, and USVG as explanatory variables. Results Sperm concentration (SC), progressive sperm motility (PSM), and normal sperm morphology (NSM) increased significantly after surgery (p = 0.002; p = 0.011; p = 0.024; respectively). Mean SC improved after MSV in ⩾35 year-old patients and the grade 3 USVG group (p = 0.01; p = 0.02; respectively). Logistic regression modeling showed a that the probability of SC improvement was 76% lower in subjects presenting RSV (p = 0.011). In addition, patients with a grade 3 USVG presented a three-times greater probability of SC improvement compared with patients with a lower USVG (p = 0.035). In addition, older patients showed a greater probability of SC improvement after MSV (p = 0.041). Conclusions MSV is an effective varicocele-related infertility treatment that should also be offered to older patients. In addition, patients with a higher USVG benefit from surgery. In infertile men with an RSV in association with a left clinical disease, a bilateral varicocele repair should be considered.
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Affiliation(s)
- Franco Palmisano
- Department of Urology, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, University of Milan, via della Commenda, Milan, Italy
| | - Daniel Moreno-Mendoza
- Fundació Puigvert, Department of Andrology, Universitat Autonoma de Barcelona, Barcelona, Spain
| | - Riccardo Ievoli
- Department of Statistics, University of Bologna, Bologna, Italy
| | | | - Carlos Gasanz-Serrano
- Fundació Puigvert, Department of Andrology, Universitat Autonoma de Barcelona, Barcelona, Spain
| | | | | | - Álvaro Vives
- Fundació Puigvert, Department of Andrology, Universitat Autonoma de Barcelona, Barcelona, Spain
| | - Lluís Bassas
- Fundació Puigvert, Department of Andrology, Universitat Autonoma de Barcelona, Barcelona, Spain
| | - Emanuele Montanari
- Department of Urology, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, University of Milan, Milan, Italy
| | - Eduard Ruiz-Castañé
- Fundació Puigvert, Department of Andrology, Universitat Autonoma de Barcelona, Barcelona, Spain
| | - Joaquim Sarquella-Geli
- Fundació Puigvert, Department of Andrology, Universitat Autonoma de Barcelona, Barcelona, Spain
| | - Josvany Sánchez-Curbelo
- Fundació Puigvert, Department of Andrology, Universitat Autonoma de Barcelona, Barcelona, Spain
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20
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Ou N, Zhu J, Zhang W, Liang Z, Hu R, Song Y, Yang Y, Liu X. Bilateral is superior to unilateral varicocelectomy in infertile men with bilateral varicocele: Systematic review and meta-analysis. Andrologia 2019; 51:e13462. [PMID: 31646672 DOI: 10.1111/and.13462] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 09/25/2019] [Accepted: 10/03/2019] [Indexed: 11/30/2022] Open
Abstract
To investigate whether bilateral surgery can bring more benefits to infertile patients with bilateral varicocele than unilateral surgery. A search of PubMed, Web of Science, EMBASE and the Cochrane Library on 13 January 2019 was conducted to identify studies published in English that used varicocelectomy. The protocol of the present meta-analysis was pre-published on PROSPERO (registration number CRD42019093894). Primary outcomes were spontaneous pregnancy rates. A total of eleven articles were finally enrolled in, with a total of 1,743 patients. Spontaneous pregnancy rate was higher in patient with bilateral varicocelectomy than unilateral varicocelectomy with an odds ratio (OR) of 1.89 (95% CI 1.52-2.35; I2 = 0%; p < .00001). The results indicated bilateral is superior than unilateral varicocelectomy concerning sperm concentration (SMD: 2.88 × 106 /ml; 95% CI: 1.06, 4.70; I2 = 93%), sperm motility (SMD: 5.08; 95% CI: 2.65, 7.50; I2 = 0%), progression of sperm motility (SMD: 6.48; 95% CI: 5.16, 7.81; I2 = 0%) and sperm morphology (SMD: 2.38%; 95% CI: 0.72, 4.03; I2 = 94%) between bilateral and unilateral varicocelectomy. Bilateral varicocelectomy may be superior to unilateral in regard to spontaneous pregnancy rate and sperm motility for infertile male with bilateral varicocele (both left clinical and right subclinical varicocele and bilateral clinical varicocele).
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Affiliation(s)
- Ningjing Ou
- Department of Urology, Tianjin Medical University General Hospital, Tianjin, China
| | - Jun Zhu
- Department of Urology, Tianjin Medical University General Hospital, Tianjin, China
| | - Wei Zhang
- Department of Urology, Tianjin Medical University General Hospital, Tianjin, China
| | - Zhen Liang
- Department of Urology, Tianjin Medical University General Hospital, Tianjin, China
| | - Rui Hu
- Department of Urology, Tianjin Medical University General Hospital, Tianjin, China
| | - Yuxuan Song
- Department of Urology, Tianjin Medical University General Hospital, Tianjin, China
| | - Yongjiao Yang
- Department of Urology, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Xiaoqiang Liu
- Department of Urology, Tianjin Medical University General Hospital, Tianjin, China
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21
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Thirumavalavan N, Scovell JM, Balasubramanian A, Kohn TP, Ji B, Hasan A, Pastuszak AW, Lipshultz LI. The Impact of Microsurgical Repair of Subclinical and Clinical Varicoceles on Total Motile Sperm Count: Is There a Difference? Urology 2018; 120:109-113. [PMID: 29981299 PMCID: PMC6221979 DOI: 10.1016/j.urology.2018.06.036] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 05/25/2018] [Accepted: 06/21/2018] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To determine if subclinical varicocele repair produces similar results to palpable varicocele repair. METHODS Retrospective review was performed on 190 infertile men who underwent a microsurgical varicocele repair by two surgeons from 2009 to 2017. Improvement in total motile sperm count (TMC) that enables men limited to in vitro fertilization (IVF) or intrauterine insemination (IUI) to undergo IUI or natural conception (upgrade) is clinically meaningful. Using TMC, men were grouped into three pre- and postoperative categories: IVF, (TMC < 5 million), IUI (TMC 5-9 million), or natural pregnancy (TMC > 9 million). Changes in category after varicocele repair were assessed. We compared the proportion of men in each category with clinical varicoceles to those with subclinical varicoceles. RESULTS Men with clinical and subclinical varicoceles had improvements in TMC after surgery (change in TMC of 9.3 ± 19.5, 7.7 ± 22.6 million, P < 0.001 for both, respectively). There was no difference in TMC improvement between men with clinical and subclinical varicoceles (P = 0.66). Of men initially limited to IVF, 11% improved to IUI, and 38% to natural pregnancy. Of patients starting in IUI category, 22% transitioned to natural pregnancy category. No difference exists in the proportion of men who "upgraded" between palpable or subclinical varicoceles. CONCLUSION Men with subclinical varicoceles have similar, clinically meaningful improvement in TMC after varicocele repair compared with men with palpable varicoceles.
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Affiliation(s)
| | - Jason M Scovell
- Scott Department of Urology, Baylor College of Medicine, Houston, TX; Translational Biology and Molecular Medicine, Baylor College of Medicine, Houston, TX
| | | | - Taylor P Kohn
- Scott Department of Urology, Baylor College of Medicine, Houston, TX
| | - Byung Ji
- Scott Department of Urology, Baylor College of Medicine, Houston, TX
| | - Asad Hasan
- Scott Department of Urology, Baylor College of Medicine, Houston, TX
| | | | - Larry I Lipshultz
- Scott Department of Urology, Baylor College of Medicine, Houston, TX
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22
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Colpi GM, Francavilla S, Haidl G, Link K, Behre HM, Goulis DG, Krausz C, Giwercman A. European Academy of Andrology guideline Management of oligo-astheno-teratozoospermia. Andrology 2018; 6:513-524. [DOI: 10.1111/andr.12502] [Citation(s) in RCA: 91] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 04/18/2018] [Accepted: 04/18/2018] [Indexed: 12/14/2022]
Affiliation(s)
- G. M. Colpi
- Department of Andrology and IVF; San Carlo Clinic; Paderno-Dugnano/Milano Italy
| | - S. Francavilla
- Department of Life, Health and Environmental Sciences; University of L’ Aquila; L’ Aquila Italy
| | - G. Haidl
- Department of Dermatology/Andrology Unit; University of Bonn; Bonn Germany
| | - K. Link
- Department of Translational Medicine and Reproductive Medicine Centre; Lunds University and Skane University Hospital; Malmö Sweden
| | - H. M. Behre
- Center for Reproductive Medicine and Andrology; University Hospital; Martin Luther University Halle-Wittenberg; Halle Germany
| | - D. G. Goulis
- Unit of Reproductive Endocrinology; 1st Department of Obstetrics and Gynecology; Medical School; Aristotle University of Thessaloniki; Thessaloniki Greece
| | - C. Krausz
- Department of Experimental and Clinical Biomedical Sciences ‘Mario Serio’; Centre of Excellence DeNothe; University of Florence; Florence Italy
| | - A. Giwercman
- Department of Translational Medicine and Reproductive Medicine Centre; Lunds University and Skane University Hospital; Malmö Sweden
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Niu Y, Wang D, Chen Y, Pokhrel G, Xu H, Wang T, Wang S, Liu J. Comparison of clinical outcome of bilateral and unilateral varicocelectomy in infertile males with left clinical and right subclinical varicocele: A meta-analysis of randomised controlled trials. Andrologia 2018; 50:e13078. [PMID: 30024042 DOI: 10.1111/and.13078] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 05/24/2018] [Accepted: 05/31/2018] [Indexed: 11/29/2022] Open
Abstract
Varicocele is the most common cause of male infertility. Varicoceles are classified into two types: clinical and subclinical varicoceles. Some researchers reported right subclinical varicoceles are often accompanied with left clinical varicoceles. However, the treatment is controversial. Our aim was to compare the clinical outcome of unilateral varicocelectomy (UV) and bilateral varicocelectomy (BV) in infertile males with left clinical and right subclinical varicocele. A total of four randomised controlled trials (RCT) were enrolled in this study, including 637 cases with left clinical and right subclinical varicocele (318 cases in the BV group and 319 cases in the UV group). The fixed effects model combined difference in progressive sperm motility between the two groups was 6.42% (95% CI: 5.09, 7.75). The random effects model combined difference in normal sperm morphology between the two groups was 2.04% (95% CI: 0.60, 3.48). The odds ratio shown by the fixed effects model in spontaneous pregnancy rate was 1.73 (95% CI: 1.24, 2.43). No statistically significant difference between the two groups was found in sperm concentration and sperm motility. Thus, BV may be superior to UV for infertile male patients with left clinical and right subclinical varicocele. However, more properly conducted RCTs are still needed.
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Affiliation(s)
- Yonghua Niu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Daoqi Wang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yinwei Chen
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Gaurab Pokhrel
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hao Xu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Tao Wang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shaogang Wang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jihong Liu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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24
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Armstrong JM, Keihani S, Hotaling JM. Use of Ultrasound in Male Infertility: Appropriate Selection of Men for Scrotal Ultrasound. Curr Urol Rep 2018; 19. [DOI: 10.1007/s11934-018-0810-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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25
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Abstract
PURPOSE OF REVIEW Varicocele may play a significant role in a subset of patients presenting with male factor infertility. Despite its relatively high prevalence amongst subfertile men, there has been controversy over the effectiveness of surgical treatments, patient selection, and when to administer treatment, particularly in the era of assisted reproductive technology. RECENT FINDINGS In line with earlier finding, recent evidence strongly suggests that varicocelectomy improves pregnancy rates and semen parameters. The currently available literature still does not clearly elucidate the answer to this question, due to flaws in retrospective study design. Patients undergoing subinguinal microsurgical varicocelectomy appear to have the highest pregnancy rates, and lowest complication rates, compared to other surgical approaches. Current research has given us a better understanding of the relationship between varicocele and infertility. Amongst men presenting with semen analysis abnormalities and varicoceles, including those patients presenting with non-obstructive azoospermia or couples with a significant male factor component failing previous attempts at in vitro fertilization, varicocelectomy may improve take home baby rates. More robust, prospective, controlled studies are needed to further clarify the population of subfertile men with varicocele most likely to benefit from varicocelectomy.
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Affiliation(s)
- Dillon Sedaghatpour
- Department of Urology, Lenox Hill Hospital, Hofstra Northwell School of Medicine, 170 East 77th Street, Suite B, New York, NY, 10075, USA
| | - Boback M Berookhim
- Department of Urology, Lenox Hill Hospital, Hofstra Northwell School of Medicine, 170 East 77th Street, Suite B, New York, NY, 10075, USA.
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26
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Sun XL, Wang JL, Peng YP, Gao QQ, Song T, Yu W, Xu ZP, Chen Y, Dai YT. Bilateral is superior to unilateral varicocelectomy in infertile males with left clinical and right subclinical varicocele: a prospective randomized controlled study. Int Urol Nephrol 2017; 50:205-210. [PMID: 29210007 DOI: 10.1007/s11255-017-1749-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Accepted: 11/11/2017] [Indexed: 10/18/2022]
Abstract
PURPOSE The purpose of this study is to compare the effect of bilateral versus unilateral varicocelectomy on seminal response and spontaneous pregnancy rates in infertile male patients with left clinical and right subclinical varicocele. METHODS A total of 358 infertile men with left clinical and right subclinical varicocele were randomized to group that underwent bilateral (n = 179) and group that underwent unilateral microsurgical subinguinal varicocelectomy (n = 179). Baseline data regarding male age, female partner age, grade of varicocele body mass index, bilateral testicular volume and serum follicle-stimulating hormone, luteinizing hormone, total testosterone levels and infertility duration and semen parameters were gathered. One year after the surgery, semen parameters including sperm volume, sperm concentration, normal sperm morphology, progressive motility and sperm DNA fragmentation index were recorded and any pregnancy was also documented via telephone calls and hospital visits. RESULTS We found the baseline characteristics were comparable between the two groups. The seminal parameters had significant improvements 1 year postoperatively in both groups. However, the bilateral group showed significantly greater improvements than the unilateral group in sperm concentration, normal sperm morphology and progressive motility. Besides, the pregnancy rate was statistically higher in the bilateral group after the surgery (42.5 versus 26.0%, bilateral versus unilateral group). CONCLUSION In conclusion, our study indicated that bilateral is superior to unilateral varicocelectomy in infertile males with left clinical and right subclinical varicocele, which is associated with greater improvements in sperm concentration, normal sperm morphology and progressive motility and spontaneous pregnancy rate after the surgery.
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Affiliation(s)
- Xiao-Lei Sun
- Department of Andrology, Drum Tower Clinical Medical School of Nanjing Medical University, Nanjing, 210008, Jiangsu, China.,Department of Urology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221006, Jiangsu, China
| | - Jiu-Lin Wang
- Department of Urology, Jiangsu Geriatric Hospital, Nanjing, 210024, Jiangsu, China
| | - Yun-Peng Peng
- Department of Urology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221006, Jiangsu, China
| | - Qing-Qiang Gao
- Department of Andrology, Drum Tower Clinical Medical School of Nanjing Medical University, Nanjing, 210008, Jiangsu, China
| | - Tao Song
- Department of Andrology, Drum Tower Clinical Medical School of Nanjing Medical University, Nanjing, 210008, Jiangsu, China
| | - Wen Yu
- Department of Andrology, Drum Tower Clinical Medical School of Nanjing Medical University, Nanjing, 210008, Jiangsu, China
| | - Zhi-Peng Xu
- Department of Andrology, Drum Tower Clinical Medical School of Nanjing Medical University, Nanjing, 210008, Jiangsu, China
| | - Yun Chen
- Department of Andrology, Drum Tower Clinical Medical School of Nanjing Medical University, Nanjing, 210008, Jiangsu, China
| | - Yu-Tian Dai
- Department of Andrology, Drum Tower Clinical Medical School of Nanjing Medical University, Nanjing, 210008, Jiangsu, China.
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Majzoub A, Agarwal A, Esteves SC. Sperm DNA fragmentation testing in patients with subclinical varicocele: is there any evidence? Transl Androl Urol 2017; 6:S459-S461. [PMID: 29082973 PMCID: PMC5643679 DOI: 10.21037/tau.2017.03.88] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- Ahmad Majzoub
- Department of Urology, Hamad Medical Corporation, Doha, Qatar
| | - Ashok Agarwal
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Sandro C Esteves
- ANDROFERT, Andrology and Human Reproduction Clinic, Referral Center for Male Reproduction, Campinas, SP, Brazil
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28
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Alshahrani S, Aldossari K, Al-Zahrani J, Gabr AH, Henkel R, Ahmad G. Interpretation of semen analysis using WHO 1999 and WHO 2010 reference values: Abnormal becoming normal. Andrologia 2017; 50. [DOI: 10.1111/and.12838] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/28/2017] [Indexed: 01/21/2023] Open
Affiliation(s)
- S. Alshahrani
- College of Medicine; Prince Sattam Bin Abdulaziz University; Al Kharj Saudi Arabia
| | - K. Aldossari
- College of Medicine; Prince Sattam Bin Abdulaziz University; Al Kharj Saudi Arabia
| | - J. Al-Zahrani
- College of Medicine; Prince Sattam Bin Abdulaziz University; Al Kharj Saudi Arabia
| | - A. H. Gabr
- College of Medicine; Prince Sattam Bin Abdulaziz University; Al Kharj Saudi Arabia
- Faculty of Medicine; Minia University; Minya Egypt
| | - R. Henkel
- Department of Medical Bioscience; University of the Western Cape; Bellville South Africa
| | - G. Ahmad
- College of Medicine; Prince Sattam Bin Abdulaziz University; Al Kharj Saudi Arabia
- Department of Physiology; University of Health Sciences; Lahore Pakistan
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30
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Jin X, Man C, Gong D, Fan Y. Adjuvant Treatment with Qilin Pill for Men with Oligoasthenospermia: A Meta-Analysis of Randomized Controlled Trials. Phytother Res 2017. [PMID: 28635070 DOI: 10.1002/ptr.5854] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Qilin pill has been used in the management of oligoasthenospermia. This meta-analysis aimed to evaluate the effects of Qilin pill as an adjunctive therapy on semen parameters in oligoasthenospermic men. A comprehensive literature search was conducted in PubMed, Embase, Cochrane Library, Wanfang, CNKI, and VIP databases until June 2016. Randomized controlled trials (RCTs) that evaluated Qilin pill as an adjunctive therapy in oligoasthenospermic were included. Dichotomous data and continuous data were calculated as the risk ratio (RR) and mean difference (MD) with their 95% confidence interval (CI), respectively. Eight RCTs involving 778 patients were identified. Adjunctive treatment with Qilin pill significantly improved the semen volume (MD 0.50 mL; 95% CI 0.42-0.59), sperm concentration (MD 5.01 × 106 /mL; 95% CI 3.28-6.75), sperm motility (MD 7.54%; 95% CI 5.64-9.45), grade A sperm (MD 9.75%; 95% CI 4.05-15.45), serum testosterone level (MD 1.66 nM; 95% CI 0.40-2.92), and pregnancy rate (RR 1.46; 95% CI 1.08-1.99) during follow-up. However, differences in the serum follicle-stimulating and luteinizing hormone levels were not significant. Adjunctive treatment with Qilin pill significantly improves the sperm quality in patients with oligoasthenospermia. However, further trials are necessary to investigate the efficacy of Qilin pill on oligoasthenospermia-induced male infertility. Copyright © 2017 John Wiley & Sons, Ltd.
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Affiliation(s)
- Xin Jin
- Institute of Molecular Biology and Translational Medicine, The Affiliated People's Hospital, Jiangsu University, Zhenjiang, Jiangsu, 212002, China
| | - Changfeng Man
- Institute of Molecular Biology and Translational Medicine, The Affiliated People's Hospital, Jiangsu University, Zhenjiang, Jiangsu, 212002, China
| | - Dandan Gong
- Institute of Molecular Biology and Translational Medicine, The Affiliated People's Hospital, Jiangsu University, Zhenjiang, Jiangsu, 212002, China
| | - Yu Fan
- Institute of Molecular Biology and Translational Medicine, The Affiliated People's Hospital, Jiangsu University, Zhenjiang, Jiangsu, 212002, China
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