Tamer A. Abouelgreed

Prof. Tamer A. Abouelgreed

orcid

Research Focus & Metrics

Academic Career Length

7Years (2020-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
18 January 2021 in Therapeutic Advances in Urology
Verified
Journal Article
Open access
PDF file
AEAhmed F. El-Sherbiny
Ahmed F. El-Sherbiny
TATamer A. Abouelgreed
Tamer A. Abouelgreed
EHEman A. Hassan
Eman A. Hassan
AMAmira B. Mehaney
Amira B. Mehaney
HEHeba A. Elshemy
Heba A. Elshemy
We aimed to prospectively evaluate the prognostic value of seminal anti-sperm antibodies (ASA) screening in couples prepared for intracytoplasmic sperm injection (ICSI). A prospective comparative study was conducted, including 184 non-azoospermic infertile men scheduled for ICSI. For each patient, detection of ASA in seminal plasma using the ELISA technique was done and its relation to standard semen parameters and ICSI outcomes, including fertilization, embryo development, and pregnancy rates, was analyzed. Sperm count, motility, and morphology were negatively affected by existence of seminal ASA (p = 0.012, 0.006, and 0.011, respectively). However, no statistically significant difference was detected between patients with positive and negative seminal ASA regarding the median values of fertilization (56.3% versus 66.7%, p = 0.091), percentage of couples with grade A embryo development (91.4% versus 89.9%, p = 0.520), and pregnancy rates (31.4% versus 32.2%, p = 0.98) after ICSI. ICSI seems able to overcome the problem of ASA in semen. The routine screening of ASA in men prepared for ICSI has no additional prognostic value and cannot be recommended for the time being, until more specific antigen-concerned testing can be developed.

26 April 2022 in Advances in Urology
Verified
Journal Article
Open access
PDF file
HAHamdy Aboutaleb
Hamdy Aboutaleb
TATamer A. Abouelgreed
Tamer A. Abouelgreed
HEHala El-Hagrasi
Hala El-Hagrasi
DEDiaa Bakry Eldib
Diaa Bakry Eldib
MAMohamed A. Abdelaal
Mohamed A. Abdelaal
MGMohamed Amin El Gohary
Mohamed Amin El Gohary
Objective. To study the association of the grade of vesicoureteral reflux (VUR) and urinary tract infections (UTI) with renal scarring at the first clinical presentation of patients who underwent antireflux surgery. Materials and methods. Between 2015 and 2020, 150 patients (194 units) who underwent antireflux surgery had dimercaptosuccinic acid (DMSA) renal scans preoperatively. Patients were classified into the nonscar and scar groups according to DMSA scan results. Moreover, cases were classified into afebrile UTI, febrile UTI, and antenatal hydronephrosis (ANH) according to the mode of presentation. We correlated the mode of presentation and the grade of VUR to the presence/absence of renal scars in both groups. Results. The mean follow-up was 45 months preoperatively. The mode of presentation was afebrile, febrile UTIs, and antenatal hydronephrosis in (50, 14), (20, 46), and (10, 10) patients in the nonscar and scar groups, respectively. Of the 20 patients who presented ANH, 10 (50%) had scars. Clinical presentation was correlated to the presence of renal scarring and its degree. The scar group had significantly higher grades of VUR than the nonscar group (grades I–II (50 units versus 10 units), grade III (28 units versus 40 units), and grade IV–V (22 units versus 44 units) for the nonscar versus scar groups, respectively (value <0.001). Conclusion. Renal scarring is associated with higher grades of reflux and urinary tract infections. We advocate further research investigating infants who had UTIs with or without fever for early detection of reflux.

6 January 2023 in BMC Urology
Verified
Journal Article
Open access
PDF file
AAAbdrabuh M. Abdrabuh
Abdrabuh M. Abdrabuh
EEEl-Sayed I. El-Agamy
El-Sayed I. El-Agamy
MEMohamed A. Elhelaly
Mohamed A. Elhelaly
TATamer A. Abouelgreed
Tamer A. Abouelgreed
IAIbrahim Abdel-Al
Ibrahim Abdel-Al
EEElsayed Elawadey
Elsayed Elawadey
Objectives: To evaluate the role of preoperative UWT in the prediction of impaction of ureteral stones stratified according to stone size in ureteroscopic laser lithotripsy. Patient and methods: This study included 154 patients submitted to URSL for ureteral stones. Radiological data comprised the presence of hydronephrosis, anteroposterior pelvic diameter (PAPD), proximal ureteric diameter (PUD), and maximum UWT at the stone site. Collected stone characteristics were stone size, side, number, site, and density. Results: The study included 154 patients subjected to URSL. They comprised 74 patients (48.1%) with impacted stones and 80 (51.9%) with non-impacted stones. Patients were stratified into those with stone size ≤ 10 mm and others with stone size > 10 mm. In the former group, we found that stone impaction was significantly associated with higher PAPD, PUD, and UWT. In patients with stone size > 10 mm, stone impaction was related to higher UWT, more stone number, and higher frequency of stones located in the lower ureter. ROC curve analysis revealed good power of UWT in discrimination of stone impaction in all patients [AUC (95% CI) 0.65 (0.55–0.74)] at a cut-off of 3.8 mm, in patients with stone size ≤ 10 mm [AUC (95% CI) 0.76 (0.61–0.91)] at a cut-off of 4.1 mm and in patients with stone size > 10 mm [AUC (95% CI) 0.72 (0.62–0.83)] at a cut-off of 3.0 mm. Conclusions: Stratifying ureteric stones according to size would render UWT a more practical and clinically-oriented approach for the preoperative prediction of stone impaction.

20 October 2022 in BMC Urology
Verified
Journal Article
Open access
PDF file
TATamer A. Abouelgreed
Tamer A. Abouelgreed
MAMohamed A. Abdelaal
Mohamed A. Abdelaal
MAMoamen M. Amin
Moamen M. Amin
AEAdel Elatreisy
Adel Elatreisy
OSOsama Shalkamy
Osama Shalkamy
HAHamdy Aboutaleb
Hamdy Aboutaleb
Objective: To evaluate and compare the outcome of ECIRS in the treatment of partial staghorn renal calculi in both prone split-leg positions versus GMSV positions with regard to; technical aspects, success rate, operative time, complications, safety, and effectiveness of both approaches. Patients and methods: Between October 2018 and August 2021, 66 patients with partial staghorn calculi were enrolled in this prospective comparative study. Patients were randomly divided according to a 1:1 ratio into two groups. Group A included 33 patients who were treated by (ECIRS) in the prone split-leg position, and group B included 33 patients who were treated by (ECIRS) in the Galdakao-modified supine Valdivia (GMSV) position. Results: No significant statistical difference between both groups regarding the mean age (p = 0.448), mean body mass index (BMI) (p = 0.137), mean stone burden (p = 0.435), mean operative time (p = 0.541) and the number of calyces located in branched stones (p = 0.628). The mean hospital stay was 6.71 ± 1.12 days for group A and 6.66 ± 1.10 days for group B patients (p = 0.724). The final SFR was achieved in (29)87.87% and (30)90.9% of group A & B patients, respectively (p = 0.694). No significant difference was detected between both groups in perioperative complication rates. Conclusion: ECIRS is safe and effective in treating partial staghorn calculi either in the prone split-leg position or in the Galdakao-modified supine Valdivia position, with comparable outcomes and no statistically significant difference between both positions.

22 June 2023 in Basic and Clinical Andrology
Verified
Journal Article
Open access
PDF file
TATamer A. Abouelgreed
Tamer A. Abouelgreed
AEAdel Elatreisy
Adel Elatreisy
AEAhmed F. El-Sherbeiny
Ahmed F. El-Sherbeiny
MAMohamed A. Abdelaal
Mohamed A. Abdelaal
TSTamer Saafan
Tamer Saafan
SHSherin A. Hefny
Sherin A. Hefny
Background: The effect of bariatric surgery on impaired semen parameters, hormonal profile and sexual function remains controversial to some extent. The context and purpose of the study: To look at the long-term effects of sleeve gastrectomy on hormonal profiles, sperm parameters, and sexual function in infertile men with severe obesity. This prospective study included fifty-four obese patients with primary or secondary infertility who were scheduled for sleeve gastrectomy between February 2018 and March 2021. All participants were given a sperm analysis and a serum hormone profile before, 12, and 18 months after surgery. We used the International Index of Erectile Function questionnaire to assess sexual function. Results: There was a significant correlation between weight loss after sleeve gastrectomy and improvement in lipid profile (p < 0.05). No significant detectable effect of post-gastrectomy weight loss on patients with diabetes mellitus, hypertension, or obstructive sleep apnea. As regards the hormonal profile, sex hormone binding globulin, total and free testosterone improved significantly after 12- and 18-months following sleeve gastrectomy. There was a significant increase in sperm count and total sperm number during the follow-up after sleeve gastrectomy (p < 0.05), however, there were no significant changes in other semen parameters. Concerning sexual function, sexual desire, erectile function, and satisfaction improved significantly at 12 and 18 months after surgery. Conclusion: Weight loss through sleeve gastrectomy surgery significantly improves testosterone deficiency, sexual performance, and Sperm count in obese infertile men.

19 June 2025 in Medicina
Verified
Journal Article
Open access
PDF file
SASAAD ALSHAHRANI
SAAD ALSHAHRANI
BFBasem Fathi
Basem Fathi
TATamer A. Abouelgreed
Tamer A. Abouelgreed
AEAshraf Abdel Salam El-Metwally
Ashraf Abdel Salam El-Metwally
Background and Objectives: Chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS) is a common condition linked to substantial urogenital symptoms, notably sexual dysfunction. This meta-analysis sought to determine the overall prevalence of sexual dysfunction in men with CP/CPPS, considering the four primary categories: desire, arousal, orgasm, and pain disorders. Materials and Methods: A systematic literature review, following MOOSE guidelines, was performed across four electronic databases (PubMed, Embase, Web of Science, and Google Scholar) for the period from January 2000 to 2025. The review included observational studies reporting the prevalence of sexual dysfunction in men with CP/CPPS. Data extraction and quality assessment were conducted independently by two reviewers. A random-effects model was used to calculate the pooled prevalence estimates and 95% confidence intervals. Heterogeneity was evaluated using I2, τ2, and Chi-squared tests, while publication bias was assessed via funnel plot asymmetry and Egger’s test. Results: The meta-analysis incorporated data from 26 studies, representing a total of 20,127 participants. The pooled prevalence of overall sexual dysfunction was 59% (95% CI: 34–81%; I2 = 98%) across six studies and 5333 participants. Pooled erectile dysfunction (ED) prevalence was 34% (95% CI: 26–42%; I2 = 99%) across 24 studies with 20,127 participants, whereas pooled prevalence for premature ejaculation (PE) was 35% (95% CI: 22–49%; I2 = 98%) across 10 studies with 13,686 participants. Significant heterogeneity was observed across all analyses (I2 > 98%). Funnel plot analysis suggested potential asymmetry, but Egger’s test was non-significant (p = 0.7034). Conclusions: This meta-analysis confirms the high prevalence of sexual dysfunction, including ED and PE, in men with CP/CPPS, providing a comprehensive estimate of its burden. The substantial heterogeneity observed underscores the need for further research to identify contributing factors and develop targeted interventions.