1.Predictability of varicocele repair success: preliminary results of a machine learning-based approach.
Andrea CRAFA ; Marco RUSSO ; Rossella CANNARELLA ; Murat GÜL ; Michele COMPAGNONE ; Laura M MONGIOÌ ; Vittorio CANNARELLA ; Rosita A CONDORELLI ; Sandro La VIGNERA ; Aldo E CALOGERO
Asian Journal of Andrology 2025;27(1):52-58
Varicocele is a prevalent condition in the infertile male population. However, to date, which patients may benefit most from varicocele repair is still a matter of debate. The purpose of this study was to evaluate whether certain preintervention sperm parameters are predictive of successful varicocele repair, defined as an improvement in total motile sperm count (TMSC). We performed a retrospective study on 111 patients with varicocele who had undergone varicocele repair, collected from the Department of Endocrinology, Metabolic Diseases and Nutrition, University of Catania (Catania, Italy), and the Unit of Urology at the Selcuk University School of Medicine (Konya, Türkiye). The predictive analysis was conducted through the use of the Brain Project, an innovative tool that allows a complete and totally unbiased search of mathematical expressions that relate the object of study to the various parameters available. Varicocele repair was considered successful when TMSC increased by at least 50% of the preintervention value. For patients with preintervention TMSC below 5 × 10 6 , improvement was considered clinically relevant when the increase exceeded 50% and the absolute TMSC value was >5 × 10 6 . From the preintervention TMSC alone, we found a model that predicts patients who appear to benefit little from varicocele repair with a sensitivity of 50.0% and a specificity of 81.8%. Varicocele grade and serum follicle-stimulating hormone (FSH) levels did not play a predictive role, but it should be noted that all patients enrolled in this study were selected with intermediate- or high-grade varicocele and normal FSH levels. In conclusion, preintervention TMSC is predictive of the success of varicocele repair in terms of TMSC improvement in patients with intermediate- or high-grade varicoceles and normal FSH levels.
Humans
;
Varicocele/complications*
;
Male
;
Retrospective Studies
;
Machine Learning
;
Adult
;
Treatment Outcome
;
Sperm Count
;
Infertility, Male/etiology*
;
Sperm Motility
;
Follicle Stimulating Hormone/blood*
;
Young Adult
2.Relationship between plasma homocysteine and clinical grading of varicocele.
Li-Hong WANG ; Lei ZHENG ; Hui JIANG ; Tao JIANG
Asian Journal of Andrology 2025;27(4):495-501
This study aims to explore the correlation between plasma homocysteine (Hcy) levels and the clinical grading of varicocele (VC) when analyzing the potential pathogenesis of endothelial cells injury by Hcy. A total of 184 VC patients, aged 18-46 years, were included in this study. These patients visited The Second Hospital of Dalian Medical University (Dalian, China), between January 2022 and September 2024. Patients were divided into three groups based on clinical grading: Group A (59 cases, Grade I), Group B (28 cases, Grade II), and Group C (97 cases, Grade III). Additionally, 120 individuals with normal fertility test results during the same period were selected as the control group. Routine blood and biochemical indices were collected from the patients. Differences in clinical indices between groups were compared, and univariate and multivariate linear regression analyses were performed to identify factors associated with clinical grading. The results showed that the median Hcy levels in the control group and in patients with Grade I, II, and III VC were 9.56 (interquartile range [IQR]: 8.66, 14.02) µmol l -1 , 11.28 (IQR: 9.71, 14.55) µmol l -1 , 11.84 (IQR: 10.14, 15.60) µmol l -1 , and 12.27 (IQR: 9.52, 15.40) µmol l -1 , respectively. The differences between the four groups were statistically significant ( χ2 = 12.41, P = 0.006). Multivariate regression analysis indicated that Hcy is a factor associated with the clinical grading of VC ( t = 2.53, P = 0.013). Hcy is associated with the clinical grading and may have clinical value in assessing severity of VC.
Humans
;
Varicocele/pathology*
;
Male
;
Homocysteine/blood*
;
Adult
;
Middle Aged
;
Adolescent
;
Young Adult
;
Severity of Illness Index
;
Case-Control Studies
3.Effect of high ligation of spermatic vein on leukocytes in expressed prostate secretion of patients with chronic prostatitis and varicocele.
Ji-Yang DING ; Peng ZHANG ; Chun-Hua NIU ; Hai-Yong LI ; Wen-Zhu XU ; Ying-Chen ZHANG ; Gang MA
National Journal of Andrology 2025;31(4):319-322
OBJECTIVE:
To investigate the effect of laparoscopic high ligation of spermatic cord vein in patients with chronic prostatitis and varicocele prostatitis.
METHODS:
A total of 90 varicocele patients were selected from January 2016 to December 2020, including 33 patients with chronic prostatitis. Changes of white blood cell count, National Institutes of Health chronic prostatitis symptom index (NIH-CPSI) score and serum testosterone level in the expressed prostate secretion (EPS) were observed before and after the operation of laparoscopic high ligation of spermatic vein.
RESULTS:
All patients were followed up three months after the surgery. There was no significant difference in the white blood cell counts in EPS, NIH-CPSI score, and serum testosterone level in patients with varicocele-only who underwent high ligation surgery after the operation. However, the white blood cell count in the EPS of patients with chronic prostatitis was lower than that before 3 months of operation ( [12.39±4.23]×109/L vs [21.36±5.05]×109/L). The NIH-CPSI score was significantly lower than that before operation ( [12.71±6.21] vs [26.76±8.43]). And the serum testosterone level was higher than that before operation ([4.34±1.77]ng/ml vs [2.36±1.05]ng/ml).
CONCLUSION
Laparoscopic high ligation of the spermatic vein in patients with chronic prostatitis and varicocele could effectively reduce the number of white blood cells in the EPS, boost the level of serum testosterone and improves symptoms of chronic prostatitis.
Male
;
Humans
;
Varicocele/surgery*
;
Prostatitis/blood*
;
Ligation
;
Spermatic Cord/blood supply*
;
Testosterone/blood*
;
Chronic Disease
;
Prostate/metabolism*
;
Veins/surgery*
;
Leukocyte Count
;
Leukocytes
;
Laparoscopy
;
Adult
4.Varicocele repair in improving spermatozoa, follicle-stimulating hormone, and luteinizing hormone parameters in infertile males with azoospermia: a systematic review and meta-analysis.
Ryan RAMON ; Syah Mirsya WARLI ; Ginanda Putra SIREGAR ; Fauriski Febrian PRAPISKA ; Dhirajaya Dharma KADAR ; Mohd Rhiza Z TALA
Asian Journal of Andrology 2024;26(6):628-634
Patients with azoospermia show a prevalence of varicocele of 10.9% and a 14.8% contribution to male infertility. Patients with azoospermia are thought to produce high-quality semen following varicocele treatment. Advising varicocelectomy prior to sperm retrieval in a reproductive program is still debated. This study reviewed the impact of varicocele repair on male infertility using several factors. A literature search was conducted using Scopus, PubMed, Embase, the Wiley Online Library, and Cochrane databases. Sperm concentration, sperm progression, overall sperm motility, sperm morphology, and follicle-stimulating hormone (FSH) and luteinizing hormone (LH) levels were also compared. Outcomes were compared between those who received treatment for varicocele and those who did not. The data from the pooled analysis were presented as standardized mean difference (SMD) along with a 95% confidence interval (CI). Heterogeneity was evaluated using I2 . Additionally, we conducted analyses for publication bias, sensitivity, and subgroup analysis as appropriate. Nine studies were included after screening relevant literature. Statistical analysis revealed a significant improvement in sperm concentration (SMD: 1.81, 95% CI: 0.84-2.77, P < 0.001), progressive sperm motility (SMD: 4.28, 95% CI: 2.34-6.22, P < 0.001), and sperm morphology (SMD: 3.59, 95% CI: 2.27-4.92, P < 0.001). Total sperm motility showed no significant difference following varicocele repair (SMD: 0.81, 95% CI: -0.61-2.22, P = 0.26). No significant differences were seen in serum FSH (SMD: 0.01, 95% CI: -0.16-0.19, P = 0.87) and LH (SMD: 0.19, 95% CI: -0.01-0.40, P = 0.07) levels as well. This study supports varicocele repair in infertile men with clinical varicocele, as reflected by the improvement in sperm parameters after varicocelectomy compared with no treatment. There were no significant improvements in serum FSH and LH levels.
Humans
;
Male
;
Azoospermia/surgery*
;
Follicle Stimulating Hormone/blood*
;
Luteinizing Hormone/blood*
;
Sperm Count
;
Sperm Motility
;
Spermatozoa
;
Varicocele/blood*
5.Microsurgical subinguinal varicocelectomy with spermatic cord double traction and vein stripping.
Ru-Hui TIAN ; Liang-Yu ZHAO ; Hui-Xing CHEN ; Chao YANG ; Peng LI ; Yu-Hua HUANG ; Zhong WAN ; Er-Lei ZHI ; Chen-Cheng YAO ; Zheng LI
Asian Journal of Andrology 2020;22(2):208-212
We retrospectively reviewed data for 286 patients with varicocele who underwent microsurgical subinguinal varicocelectomy from March 2015 to May 2017 in Shanghai General Hospital (Shanghai, China). In this surgical approach, the testis was delivered, and the gubernacular and external cremasteric veins were stripped. In addition, the spermatic cord was delivered downward with continuous double traction away from the external ring. The remaining procedure was similar to the conventional approach. We followed patients for at least 3 months and evaluated postoperative semen parameters, pain symptoms, and complications. We excluded data for 32 men due to inadequate follow-up (<3 months). Of the remaining 254 patients, 73 had oligoasthenospermia, 121 had nonobstructive azoospermia, and 60 had symptomatic varicoceles. Total progressive sperm counts increased in the oligoasthenospermic patients from a median preoperative value of 9.15 × 106 ml-1 to 25.33 × 106 ml-1 (n= 34), and 35.6% (26/73) initially oligoasthenospermic men contributed to unassisted pregnancies. Sperm returned to the ejaculate in 12.4% (15/121) azoospermia patients. In patients with scrotal pain (n = 60), 43 (71.7%) reported complete resolution of pain, 16 (26.7%) reported partial resolution, and 1 (1.7%) reported no change. No patients experienced varicocele recurrence. This double-traction strategy avoids opening the external oblique aponeurosis, and results in less damage and faster recovery. In addition, the stripping strategy eliminates potential damage to the testis caused by the varicose veins. Our results showed that microsurgical subinguinal varicocelectomy using spermatic cord double traction in conjunction with testicular delivery for vein stripping is a safe and effective approach for varicocele repair.
Adolescent
;
Adult
;
Humans
;
Male
;
Microsurgery
;
Middle Aged
;
Retrospective Studies
;
Spermatic Cord/surgery*
;
Testis/blood supply*
;
Treatment Outcome
;
Urogenital Surgical Procedures/methods*
;
Varicocele/surgery*
;
Veins/surgery*
;
Young Adult
6.Inhibin B level helps evaluate the testicular function of prepubertal patients with varicocele.
Xiao-Bing NIU ; Jing TANG ; Heng-Bing WANG ; Li YAN ; Chun-Yan ZHANG ; Gong-Cheng WANG ; Jian LIANG ; Xiao-Yu DOU ; Guang-Bo FU
National Journal of Andrology 2018;24(7):618-621
ObjectiveTo investigate the role of the serum inhibin B (INHB) level in evaluating the testicular function of the prepubertal patient with varicocele (VC) after high ligation of the spermatic vein (HLSV).
METHODSThis study included 31 prepubertal male patients with left VC, averaging 12.55 years of age and 9 complicated by right VC. We collected peripheral blood samples before and at 4, 12 and 26 weeks after HLSV as well as spermatic venous blood samples intraoperatively for determination of the levels of follicle-stimulating hormone (FSH), luteinizing hormone (LH), testosterone (T), anti-sperm antibody (AsAb) and serum INHB by ELISA.
RESULTSCompared with the baseline, statistically significant differences were observed in the INHB level in the peripheral blood at 12 and 26 weeks after operation ([255.18 ± 69.97] vs [141.78 ± 59.82] pg/ml, P < 0.05) and that in the spermatic venous blood intraoperatively ([255.18 ± 69.97] vs [412.44 ± 259.42] pg/ml, P < 0.01). Spearman's analysis showed a negative correlation between the level of INHB and that of FSH (r = -0.224, P < 0.01).
CONCLUSIONSThe level of serum INHB in the peripheral blood of the prepubertal VC patient is decreased within 6 months after HLSV and negatively correlated with that of FSH. The levels of INHB and FSH may well reflect the testicular function of the prepubertal VC patient.
Adolescent ; Antibodies ; blood ; Biomarkers ; blood ; Child ; Follicle Stimulating Hormone ; blood ; Humans ; Inhibins ; blood ; Luteinizing Hormone ; blood ; Male ; Spermatozoa ; immunology ; Testosterone ; blood ; Varicocele ; blood
7.Serum inhibin B and varicocele: An update.
Shen LIANG ; Hai-Bo ZHANG ; Shan-Chao ZHAO
National Journal of Andrology 2018;24(2):168-171
Inhibin B, a glycoprotein produced predominantly by Sertoli cells and preferentially suppressing the production and secretion of follicle-stimulating hormone (FSH) in the pituitary, is closely related to spermatogenesis. Varicocele is the abnormal dilatation and tortuosity of the pampiniform plexus veins, which may contribute to spermatogenic dysfunction and male infertility. More and more evidence has shown that the level of serum inhibin B is negatively correlated with the severity of varicocele. Determination of the inhibin B level may help assess the severity of spermatogenic dysfunction of the patient and predict the outcomes of varicocele repair and therefore has a potential application value in the diagnosis and treatment of varicocele.
Follicle Stimulating Hormone
;
metabolism
;
Humans
;
Infertility, Male
;
blood
;
etiology
;
Inhibins
;
blood
;
Male
;
Sertoli Cells
;
Spermatogenesis
;
Varicocele
;
blood
8.Microscopic spermatic vein ligation for the treatment of varicocele.
National Journal of Andrology 2017;23(12):1080-1084
Objective:
To explore the effect of spermatic vein ligation under the microscope in the treatment of varicocele (VC).
METHODS:
A total of 120 VC patients received in our department from September 2011 to February 2015 were randomly divided into an experimental and a control group of equal number, the former treated by microscopic spermatic vein ligation and the latter by conventional open high ligation. Comparisons were made between the two groups of patients in the internal diameters of the spermatic vein during eupnea and Valsalva maneuver, the reflux time of the spermatic vein, blood flow parameters of the testicular artery, and semen quality before and at 3 months after surgery.
RESULTS:
At 3 months after surgery, the experimental group, as compared with the control, showed significantly decreased reflux time of the spermatic vein ([0.41 ± 0.10] vs [1.08 ± 0.10] s, P <0.05) and peak systolic velocity (9.26 ± 1.35 vs 10.64 ± 1.28, P <0.05) and resistance index (0.52 ± 0.03 vs 0.61 ± 0.03, P <0.05) of the testicular artery but markedly increased internal diameters of the spermatic vein during eupnea ([1.63 ± 0.07] vs [1.59 ± 0.06] mm, P <0.05) and Valsalva maneuver ([1.72 ± 0.05] vs [1.68 ± 0.07] mm, P <0.05), sperm concentration ([46.84 ± 5.24] vs [35.35 ± 4.26] ×10⁶/ml, P <0.05), sperm motility ([63.75 ± 7.73] vs [53.87 ± 6.46] %, P <0.05), and total sperm count ([89.54 ± 7.95] vs [75.24 ± 8.43] ×10⁶/ml, P <0.05).
CONCLUSIONS
Microscopic spermatic vein ligation has a definite effect in the treatment of varicocele, which can significantly improve the testicular blood flow and semen quality of the patient.
Humans
;
Ligation
;
methods
;
Male
;
Perineum
;
Semen Analysis
;
Sperm Count
;
Sperm Motility
;
Spermatic Cord
;
blood supply
;
Spermatozoa
;
Testis
;
blood supply
;
Varicocele
;
surgery
;
Veins
;
surgery
9.Laparoscopic extraperitoneal high ligation of the spermatic vein for the treatment of varicocele.
Qing-Qiang GAO ; Zhi-Peng XU ; Wen YU ; Hai CHEN ; Tao SONG ; Yun CHEN ; Yu-Tian DAI
National Journal of Andrology 2017;23(11):987-990
Objective:
To investigate the effect of laparoscopic extraperitoneal (LSEP) high ligation of the spermatic vein in the treatment of varicocele.
METHODS:
We retrospectively analyzed the clinical data about 80 cases of varieocele, 48 treated by LSEP and the other 32 by laparoscopic transabdominal retroperitoneal (LSTR) high ligation of the spermatic vein. We recorded the semen parameters before and at 1, 3 and 6 months after surgery, intraoperative blood loss, operation time, postoperative complications, time of gastrointestinal function recovery and rate of pregnancy, followed by comparison of the data obtained between the two groups of patients.
RESULTS:
Semen parameters were remarkably improved in both the LSEP and LSTR groups of patients postoperatively as compared with the baseline (P <0.05), but with no statistically significant difference at different postoperative months (P >0.05). The intraoperative blood loss was less in the LSEP than in the LSTR group ([8.3 ± 5.2] vs [9.1 ± 6.1] ml, P >0.05), the operation time was shorter in the former than in the latter ([38.27 ± 9.23] vs [43.46 ± 11.72] min, P >0.05), and so was the time of gastrointestinal function recovery ([1.27 ± 0.26] vs [2.43 ± 0.41] d, P <0.05). No statistically significant differences were observed between the two groups during the 6- to 18-month follow-up in the rates of postoperative subcutaneous hematoma, scrotal and subcutaneous emphysema, recurrence, or pregnancy (P >0.05).
CONCLUSIONS
Laparoscopic extraperitoneal high ligation of the spermatic vein is safe and effective and has the advantage of quick recovery in the treatment of varicocele.
Blood Loss, Surgical
;
Emphysema
;
etiology
;
Female
;
Humans
;
Laparoscopy
;
Ligation
;
methods
;
Male
;
Operative Time
;
Postoperative Complications
;
etiology
;
Pregnancy
;
Recurrence
;
Retroperitoneal Space
;
Retrospective Studies
;
Scrotum
;
Spermatic Cord
;
blood supply
;
Treatment Outcome
;
Varicocele
;
surgery
;
Veins
;
surgery
10.Microscopic spermatic vein ligation for nutcracker phenomenon complicated with left varicocele.
Qing-Qiang GAO ; Zhi-Peng XU ; Hai CHEN ; Tao SONG ; Yu-Tian DAI ; Yun CHEN
National Journal of Andrology 2017;23(8):692-696
Objective:
To investigate the clinical effect of microscopic spermatic vein ligation in the treatment of nutcracker phenomenon (NCP) complicated with left varicocele (VC).
METHODS:
This retrospective study included 31 cases of NCP complicated with left VC treated in our hospital by subinguinal microscopic ligation of the left spermatic vein (group A, n = 11), open retroperitoneal high ligation of the left spermatic vein (group B, n = 11), or conservative therapy (group C, n = 9). The patients were followed up for 6-24 (15.3 ± 5.4) months. We compared the semen parameters, spermatic vein diameter, left testis volume, and recurrence rate among the three groups of patients before and after treatment.
RESULTS:
Compared with the baseline, the semen quality parameters were significantly improved in both groups A and B at 6 months after treatment (P<0.05) but reduced in group C (P<0.05); the spermatic vein diameter at rest and that at Valsalva maneuver were markedly decreased in groups A ([2.53 ± 0.27] vs [1.84 ± 0.22] and [3.53 ± 0.19] vs [2.16 ± 0.25] mm, P<0.05) and B ([2.62 ± 0.33] vs [2.15 ± 0.43] and [3.36 ± 0.25] vs [2.44 ± 0.27] mm, P<0.05) but increased in group C ([2.56 ± 0.28] vs [2.94 ± 0.24] and [3.33 ± 0.21] vs [3.77 ± 0.26] mm, P<0.05). No statistically significant differences were found in the left testis volume at 6 months after treatment in group A ([9.85 ± 1.86] vs [10.27 ± 1.18] ml, P>0.05), B ([9.77 ± 2.03] vs [9.96 ± 1.72] ml, P>0.05), or C ([9.83 ± 1.59] vs [10.48 ± 2.05] ml, P>0.05), nor in the recurrence rate between groups A and B (P>0.05).
CONCLUSIONS
Hematuria, proteinuria and other mild symptoms of nutcracker phenomenon complicated with left VC can be treated palliatively by microscopic ligation of the spermatic vein, which can relieve the clinical symptoms, improve the semen quality, and protect the testicular function of the patient.
Follow-Up Studies
;
Humans
;
Ligation
;
methods
;
Male
;
Recurrence
;
Renal Nutcracker Syndrome
;
surgery
;
Retroperitoneal Space
;
Retrospective Studies
;
Semen Analysis
;
Testis
;
anatomy & histology
;
blood supply
;
Time Factors
;
Varicocele
;
complications
;
Veins
;
surgery

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