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  1. Article ; Online: Buccal mucosa graft urethroplasty for bulbar urethral stricture: Outcomes andpredictive factors affecting success.

    Güler, Y

    Actas urologicas espanolas

    2022  Volume 47, Issue 2, Page(s) 78–86

    Abstract: Introduction and objective: The bulbar urethra is the location where urethral stricture is most commonly observed. The most successful method for long and recurrent urethral stenosis is graft urethroplasty. The most successful graft source is buccal ... ...

    Abstract Introduction and objective: The bulbar urethra is the location where urethral stricture is most commonly observed. The most successful method for long and recurrent urethral stenosis is graft urethroplasty. The most successful graft source is buccal mucosa, with advantages like easy adaptation to the corporeal bed, thick epithelium, thin lamina propria with rich vascular structure and easy ability to obtain the graft. In this study we aimed to retrospectively assess the outcomes and predictive factors affecting surgical success of our buccal mucosal graft urethroplasty surgery performed for bulbar urethra stenosis with moderate length.
    Material and method: In this study, we monitored 51 patients with mean 4.4 cm bulbar urethral stricture length for mean 17 months follow-up. From operative and postoperative data, stenosis length, operation duration, Qmax, International Prostate Symptom Score, International Index of Erectile Function-Erectile Function and OF, success rates in total and in subgroups (age, according to DVIU, etiology, BMI and DM), follow-up duration, complications, re-stricture time and number were assessed.
    Results: The total success of the operations was 86.3%. In 17 months, the re-stricture rate was 13.7%. Oral and urethral complications were all minor. The complications with longest duration (6 months) were ejaculation, erection problems and urethral fistula. Mean time to re-stricture was 11 months. All re-stricture patients were relieved by one DVIU session each.
    Conclusion: For bulbar urethral stricture longer than 2 cm and with recurrence, the dorsal buccal mucosa graft replacement is a very successful method with low complication rates.
    MeSH term(s) Male ; Humans ; Urethral Stricture/surgery ; Urethral Stricture/etiology ; Urethra/surgery ; Constriction, Pathologic ; Mouth Mucosa/transplantation ; Retrospective Studies ; Erectile Dysfunction/surgery ; Urologic Surgical Procedures, Male/methods
    Language Spanish
    Publishing date 2022-08-10
    Publishing country Spain
    Document type Journal Article
    ISSN 2173-5786
    ISSN (online) 2173-5786
    DOI 10.1016/j.acuroe.2022.08.014
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Effects of body mass index on urinary lithogenic factors in urinary system stone patients.

    Güler, Yavuz

    Folia medica

    2024  Volume 66, Issue 1, Page(s) 80–87

    Abstract: Aim: Obesity and metabolic syndrome are becoming more prevalent these days. In addition, we know that urinary stone disease is also on the rise. In this study, we wanted to examine if body mass index (BMI) had a negative effect on the stone disease by ... ...

    Abstract Aim: Obesity and metabolic syndrome are becoming more prevalent these days. In addition, we know that urinary stone disease is also on the rise. In this study, we wanted to examine if body mass index (BMI) had a negative effect on the stone disease by evaluating 24-hour urinalysis in stone patients and recurrence rates in our region.
    MeSH term(s) Humans ; Body Mass Index ; Calcium Oxalate ; Urinary Calculi ; Obesity/complications
    Chemical Substances Calcium Oxalate (2612HC57YE)
    Language English
    Publishing date 2024-02-29
    Publishing country Bulgaria
    Document type Journal Article
    ZDB-ID 300275-5
    ISSN 1314-2143 ; 0430-8638 ; 0204-8043
    ISSN (online) 1314-2143
    ISSN 0430-8638 ; 0204-8043
    DOI 10.3897/folmed.66.e114369
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  3. Article ; Online: Clinical and pathological risk factors for tumour recurrence and upstaging in second TURBT for patients with NMIBC: a systematic review and meta-analysis.

    Guler, Yavuz

    Aktuelle Urologie

    2023  

    Abstract: ZIEL: Offenlegung signifikanter Risikofaktoren durch Identifizierung gepoolter Effektschätzungsstatistiken in einer systemischen Überprüfung und Metaanalyse klinischer und pathologischer Risikofaktoren, die ein Tumorrezidiv und ein Upstaging auf eine ... ...

    Title translation Klinische und pathologische Risikofaktoren für Tumorrezidive und Upstaging in der zweiten TURBT für Patienten mit NMIBC: Eine systematische Überprüfung und Metaanalyse.
    Abstract ZIEL: Offenlegung signifikanter Risikofaktoren durch Identifizierung gepoolter Effektschätzungsstatistiken in einer systemischen Überprüfung und Metaanalyse klinischer und pathologischer Risikofaktoren, die ein Tumorrezidiv und ein Upstaging auf eine zweite TURBT bei Patienten mit hochgradigem NMIBC vorhersagen.
    Material-methode: Alle Datenquellen wurden umfassend bis Oktober 2022 untersucht. Die Daten wurden aus den relevanten Studien extrahiert und mit der Software RevMan analysiert. In einem inversen Varianzmodell mit zufälligen und festen Effekten werden Odds Ratio (OR)-Werte mit 95%-Konfidenzintervallen [95%-KI] angegeben.
    Ergebnisse: Der Review umfasste insgesamt 18 Studien und 4548 Patienten. Gemäß den gepoolten Effektschätzern waren Carcinoma in situ (CIS), Tumorgrad, Multiplizität und Chirurgenfaktoren signifikante Risikofaktoren. Die gepoolten Effektschätzungen für das Tumorstadium und die Tumormorphologie waren sehr nahe an der Signifikanz. Für CIS, Grad, Multiplizität und Chirurgenfaktor, OR, IVR oder IVF [95%-KI] waren die p- und I2-Werte 1,8 [1,1, 3,0], 0,03, 75%; 2 [1,1, 3,4], 0,02, 53%; 1,3 [1,2, 1,6], <0,01, 40%; und 2 [1,4, 3], <0,01, 66%.
    Schlussfolgerungen: Als Ergebnis der ersten TURBT; Eine zweite TURBT sollte in den 2-6 Wochen der postoperativen Phase für Patienten mit hochgradigem, begleitendem CIS, multipler, solider Morphologie, DM(-) im pathologischen Präparat und NMIBC, das von Trainern/Juniorchirurgen operiert wird, geplant werden.
    Language English
    Publishing date 2023-06-01
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 124847-9
    ISSN 1438-8820 ; 0001-7868
    ISSN (online) 1438-8820
    ISSN 0001-7868
    DOI 10.1055/a-2063-3144
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  4. Article ; Online: Outcomes and predictive factors for re-stricture with urethroplasty methods for anterior urethra stricture.

    Güler, Yavuz

    Urologia

    2023  Volume 90, Issue 2, Page(s) 315–321

    Abstract: Objectives: We wished to compare the treatment success of urethroplasty methods (EPA and BMG) used for anterior urethra stricture after unsuccessful internal urethrotomy.: Methods: A total of 85 and 51 patients, respectively, who underwent excision ... ...

    Abstract Objectives: We wished to compare the treatment success of urethroplasty methods (EPA and BMG) used for anterior urethra stricture after unsuccessful internal urethrotomy.
    Methods: A total of 85 and 51 patients, respectively, who underwent excision and primary anastomosis (EPA) and buccal mucosal graft (BMG) urethroplasty due to recurrent strictures after direct vision internal urethrotomy (DVIU) were evaluated retrospectively. On the uroflowmetry test, >15 ml/s urine flow and residual urine (PVR) below 50 ml were determined as success criteria. Cox regression analysis investigated the probable predictive factors for surgery success. Kaplan-Meier analysis assessed stricture free survival after redo-urethroplasty.
    Results: After surgery, EPA and BMG patients were followed for 31.9 ± 9.8 (4-40) and 30.7 ± 10.3 (4-40) months. At the end of this follow-up duration, success was obtained for 71 (83.5%) and 44 (86.3%) patients. Mean re-stricture times were 13.9 ± 6.0 (4-19) and 10.2 ± 5.1 (4-26) months. Most re-strictures had penile location (10 (71.5%) and 7 (100%)). After one session of DVIU, there was 100% success in both groups, but after >3 sessions of DVIU, success fell to 70.3% and 78.3% in the groups respectively. Patients with high numbers of DVIU sessions had longer durations for urethroplasty surgery. Apart from complications related to the donor field in the oral region with BMG and four patients who developed fistula (7.8%), complications were similar in both groups.
    Conclusions: In this series of cases, it was not possible to identify which of the techniques employed provides the best result or predictive factors for stenosis recurrence after correction procedures for anterior urethral stenosis.
    MeSH term(s) Male ; Humans ; Urethral Stricture/etiology ; Urethra/surgery ; Constriction, Pathologic ; Retrospective Studies ; Urologic Surgical Procedures, Male/methods ; Mouth Mucosa/transplantation ; Treatment Outcome
    Language English
    Publishing date 2023-01-13
    Publishing country United States
    Document type Journal Article
    ZDB-ID 204043-8
    ISSN 1724-6075 ; 0376-0057 ; 0391-5603
    ISSN (online) 1724-6075
    ISSN 0376-0057 ; 0391-5603
    DOI 10.1177/03915603221148532
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Comparison of closure versus non-closure of the intraoral buccal mucosa graft site in urethroplasties. A systematic review and meta-analysis.

    Güler, Yavuz

    Arab journal of urology

    2022  Volume 21, Issue 1, Page(s) 18–30

    Abstract: Aim: To assess postoperative oral morbidity through meta-analysis of comparative studies for closure or non-closure of the buccal mucosa graft harvest area in patients undergoing urethroplasty.: Methods: A systematic literature review was conducted ... ...

    Abstract Aim: To assess postoperative oral morbidity through meta-analysis of comparative studies for closure or non-closure of the buccal mucosa graft harvest area in patients undergoing urethroplasty.
    Methods: A systematic literature review was conducted in January 2022. Randomized controlled studies were assessed according to the Cochrane collaboration guidelines. Postoperative pain, difficult mouth opening, alteration of oral salivation, perioral numbness, and tolerance of solid and liquid intake results were assessed. Standard mean differences and risk ratios with 95% confidence intervals were estimated for relative risk. Assessment was performed with subgroup analyses according to time points.
    Results: This meta-analysis included 373 patients in 7 randomized studies. The oral pain overall pooled effect estimates were investigated for the time points of day 0-1, day 3-7 and months 1-6. According to corrected effect estimates after sensitivity analysis, at the day 0-1 time point, the non-closure group was significantly superior compared to the closure group. But there was no difference at the other time points and in total. The overall pooled effect estimates for difficult mouth opening were investigated at 4 time points (day 1, days 5-7, months 1-3 and months 6). After sensitivity analysis, the overall pooled effect estimates at 6 months were significantly superior for the non-closure group. There were no significant differences between the non-closed and closed groups based on the overall pooled-effect estimates for oral numbness, salivary secretion alteration, and tolerance of liquid and solid food variants.
    Conclusion: The non-closure group was more advantageous in terms of oral pain in the early postoperative period. There were no differences between the groups in terms of alteration of salivation, oral numbness and toleration of liquid/solid food. Although the non-closed group seems more advantageous in terms of ease in mouth movements, more studies are needed to prove this.
    Language English
    Publishing date 2022-07-18
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 2631788-6
    ISSN 2090-598X
    ISSN 2090-598X
    DOI 10.1080/2090598X.2022.2097613
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  6. Article ; Online: Retrograde intrarenal surgery for impacted upper ureteral stone in a patient with advanced lumbar scoliosis and lower-extremity development defect: a case report.

    Güler, Yavuz

    Journal of medical case reports

    2022  Volume 16, Issue 1, Page(s) 204

    Abstract: Background: Today, retrograde intrarenal surgery is the most preferred and very successful treatment method for upper ureteral stones that do not spontaneously pass and/or do not benefit from extracorporeal wave lithotripsy. However, perioperative ... ...

    Abstract Background: Today, retrograde intrarenal surgery is the most preferred and very successful treatment method for upper ureteral stones that do not spontaneously pass and/or do not benefit from extracorporeal wave lithotripsy. However, perioperative complications are more common in retrograde intrarenal surgery if the stone in the ureter is impacted. Moreover, urosepsis and renal dysfunction are detected more frequently in patients with impacted stones. Impacted stones, which are a risky stone group even in patients with normal vertebral anatomy, are a more challenging situation in patients with advanced vertebral scoliosis. It is difficult to achieve an operating position in these patients. In addition, the ureteral tracing is altered, curved, and tortuous, making it more difficult for the endoscope to advance through the ureter.
    Case presentation: In this case report, we present a 23-year-old Caucasian male patient with right concavity and severe scoliosis, lower-extremity developmental disorder, and urosepsis. To treat the urosepsis picture, first percutaneous nephrostomy drainage was provided and the urine was sterilized with appropriate antibiotics according to the culture/antibiogram. Then, we performed ureterolithotripsy with a flexureterorenoscope. Finally, we see that flexible ureterorenoscopic lithotripsy to the upper ureteral stone with impacted stones, which is a very challenging operation even in patients with normal vertebrae, could be successfully performed in our patient with advanced scoliosis deformity.
    Conclusion: High stone-free and low complication rates can be obtained with flexible ureterorenoscopic retrograde intrarenal surgery in medium-sized impacted upper ureteral stones in patients with advanced scoliosis.
    MeSH term(s) Adult ; Humans ; Lithotripsy/methods ; Lower Extremity ; Male ; Nephrostomy, Percutaneous ; Scoliosis/complications ; Scoliosis/surgery ; Ureteral Calculi/complications ; Ureteral Calculi/surgery ; Young Adult
    Language English
    Publishing date 2022-05-26
    Publishing country England
    Document type Case Reports ; Journal Article
    ZDB-ID 2269805-X
    ISSN 1752-1947 ; 1752-1947
    ISSN (online) 1752-1947
    ISSN 1752-1947
    DOI 10.1186/s13256-022-03411-w
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  7. Article ; Online: Medium-long-term outcomes of saphenous vein graft in Peyronie surgery: Is there a need for new graft material?

    Güler, Yavuz

    Revista internacional de andrologia

    2022  Volume 20, Issue 3, Page(s) 145–151

    Abstract: Aim: We present our results of tunical incision and saphenous graft surgery for men with short penis and who cannot have sexual relations due to curvature linked to chronic Peyronie plaques.: Introduction: Peyronie disease is a chronic process where ... ...

    Abstract Aim: We present our results of tunical incision and saphenous graft surgery for men with short penis and who cannot have sexual relations due to curvature linked to chronic Peyronie plaques.
    Introduction: Peyronie disease is a chronic process where fibrotic plaques form in the tunica albuginea. The plaques cause pain in the acute period and cause the penis to bend after inflammation ends. Surgical procedures are required for curvature>30°. Saphenous vein graft (SVG) replacement is an alternative method for tunical plaque incision defect.
    Material-method: The outcomes for 71 patients with TI+SVG surgery were retrospectively assessed. Plaque features (curvature angle, location, direction of curve and tunical defect diameter), operative and postoperative properties (surgery duration, recurrent curvature, penis shortening, glans hypoesthesia, satisfaction score, follow-up duration), preoperative-postoperative penis length and IIEF-5 score differences were assessed.
    Results: Mean age was 61.12±7.9 (45-75) years, mean curvature angle was 62.0±14.7 (50-90), location was mid-penile for 46 (65%), with angulation direction toward the dorsal for 37 (52%), and the defect area after tunical incision was 15.5±3.9 (10-23) cm
    Conclusion: The TI+SVG method is an effective method for Peyronie surgery in the medium-long term.
    MeSH term(s) Aged ; Fibrosis ; Humans ; Male ; Middle Aged ; Penile Induration/surgery ; Penis/blood supply ; Penis/surgery ; Retrospective Studies ; Saphenous Vein/transplantation
    Language English
    Publishing date 2022-06-16
    Publishing country Spain
    Document type Journal Article
    ISSN 1698-0409
    ISSN (online) 1698-0409
    DOI 10.1016/j.androl.2020.12.009
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  8. Article: Comparison of a modified Mogen clamp and classic dorsal slit circumcision under local anesthesia: A clinical study.

    Güler, Yavuz

    Current urology

    2022  Volume 16, Issue 3, Page(s) 175–179

    Abstract: Background: Currently, although various methods are used, there is no gold standard method for circumcision. Therefore, we developed a modified circumcision clamp inspired by the Mogen clamp suitable for circumcisions performed under local anesthesia in ...

    Abstract Background: Currently, although various methods are used, there is no gold standard method for circumcision. Therefore, we developed a modified circumcision clamp inspired by the Mogen clamp suitable for circumcisions performed under local anesthesia in our country. To evaluate its success and complications, we compared our modified Mogen clamp with a dorsal slit circumcision.
    Materials and methods: From 2013 to 2017, we retrospectively evaluated 1309 patients who had undergone circumcision; of these, 832 used the modified Mogen clamp method (Group 1) and 477 used the dorsal slit method (Group 2). The patients' age, surgery duration, minor hemorrhage (not requiring suture or repeated surgical exploration after circumcision but with buffer or clotting solution used), major hemorrhage (hemorrhage requiring suture or exploration), redundant prepuce skin remnants, revision numbers, and family satisfaction values were evaluated and compared between the 2 groups.
    Results: Patients were assessed at least 3 times: 1day, 1week, and 1month after circumcision. The mean ages in Groups 1 and 2 were 16.5±22.8 versus 15.5±18.8 months, respectively. The surgical procedure durations were 9.2±1.7 and 15.4±2.5 minutes in Groups 1 and 2, respectively (
    Conclusion: Under local anesthesia, the circumcision procedure with the modified Mogen clamp can be performed more rapidly than with the dorsal slit, and the cosmetic results are better as the incision line is more regular. All postoperative complications were similar, with problems related to redundant skin occurring more frequently with clamp circumcision.
    Language English
    Publishing date 2022-08-02
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2253664-4
    ISSN 1661-7657 ; 1661-7649
    ISSN (online) 1661-7657
    ISSN 1661-7649
    DOI 10.1097/CU9.0000000000000083
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: Non-contrast computed tomography-based factors in predicting ESWL success: A systematic review and meta-analysis.

    Güler, Yavuz

    Progres en urologie : journal de l'Association francaise d'urologie et de la Societe francaise d'urologie

    2022  

    Abstract: Purpose: We assessed the efficacy of some predictive factors that can be measured with non-contrast computed tomography and may affect ESWL success with a systematic review and meta-analysis.: Materials and methods: All data sources were broadly ... ...

    Abstract Purpose: We assessed the efficacy of some predictive factors that can be measured with non-contrast computed tomography and may affect ESWL success with a systematic review and meta-analysis.
    Materials and methods: All data sources were broadly investigated up to April 2022. Data were extracted from the relevant studies and analyzed with RevMan software. In a random effects model, standard mean difference (SMD) and risk ratio (RR) values were given with 95% confidence intervals.
    Results: In total, pooled analysis included 7148 patients in 43 studies. The combined effect estimate showed significant differences between the ESWL success and ESWL failure groups in terms of Hounsfield unit (HU), Hounsfield density (HD), skin to stone distance (SSD), ureteral wall thickness (UWT), stone volume, stone area, abdominal fat parameters, diameter of proximal ureter, and hydronephrosis. However, perinephric stranding and renal cortical thickness were not found to be statistically significant between the study groups.
    Conclusions: HU, HD, SSD, UWT, stone volume, stone area, abdominal fat parameters, diameter of proximal ureter and hydronephrosis are effective factors for prediction of ESWL success. It is important to decide on treatment before the procedure for stones with appropriate diameter for ESWL.
    Language English
    Publishing date 2022-10-03
    Publishing country France
    Document type Journal Article
    ZDB-ID 1186190-3
    ISSN 1166-7087
    ISSN 1166-7087
    DOI 10.1016/j.purol.2022.09.015
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  10. Article: Clinical and pathological risk factors for tumour recurrence and upstaging in second TURBT for patients with NMIBC: a systematic review and meta-analysis

    Guler, Yavuz

    Aktuelle Urologie

    2023  

    Abstract: Ziel: Offenlegung signifikanter Risikofaktoren durch Identifizierung gepoolter Effektschätzungsstatistiken in einer systemischen Überprüfung und Metaanalyse klinischer und pathologischer Risikofaktoren, die ein Tumorrezidiv und ein Upstaging auf eine ... ...

    Abstract Ziel: Offenlegung signifikanter Risikofaktoren durch Identifizierung gepoolter Effektschätzungsstatistiken in einer systemischen Überprüfung und Metaanalyse klinischer und pathologischer Risikofaktoren, die ein Tumorrezidiv und ein Upstaging auf eine zweite TURBT bei Patienten mit hochgradigem NMIBC vorhersagen.
    Material-Methode: Alle Datenquellen wurden umfassend bis Oktober 2022 untersucht. Die Daten wurden aus den relevanten Studien extrahiert und mit der Software RevMan analysiert. In einem inversen Varianzmodell mit zufälligen und festen Effekten werden Odds Ratio (OR)-Werte mit 95%-Konfidenzintervallen [95%-KI] angegeben.
    Ergebnisse: Der Review umfasste insgesamt 18 Studien und 4548 Patienten. Gemäß den gepoolten Effektschätzern waren Carcinoma in situ (CIS), Tumorgrad, Multiplizität und Chirurgenfaktoren signifikante Risikofaktoren. Die gepoolten Effektschätzungen für das Tumorstadium und die Tumormorphologie waren sehr nahe an der Signifikanz. Für CIS, Grad, Multiplizität und Chirurgenfaktor, OR, IVR oder IVF [95%-KI] waren die p- und I2-Werte 1,8 [1,1, 3,0], 0,03, 75%; 2 [1,1, 3,4], 0,02, 53%; 1,3 [1,2, 1,6], <0,01, 40%; und 2 [1,4, 3], <0,01, 66%.
    Schlussfolgerungen: Als Ergebnis der ersten TURBT; Eine zweite TURBT sollte in den 2–6 Wochen der postoperativen Phase für Patienten mit hochgradigem, begleitendem CIS, multipler, solider Morphologie, DM(-) im pathologischen Präparat und NMIBC, das von Trainern/Juniorchirurgen operiert wird, geplant werden.
    Keywords zweite TURBT ; Re-TURBT ; Risikofaktoren ; CIS ; Multiplizität ; second TURBT ; risk factors ; CIS ; multiplicity ; repeated TURBT
    Language English
    Publishing date 2023-06-01
    Publisher Georg Thieme Verlag KG
    Publishing place Stuttgart ; New York
    Document type Article
    ZDB-ID 124847-9
    ISSN 1438-8820 ; 0001-7868
    ISSN (online) 1438-8820
    ISSN 0001-7868
    DOI 10.1055/a-2063-3144
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