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Garaffa G, Traunero F, Claps F, Pavan N, Rossin G, Piasentin A, Rizzo M, Biasatti A, Zorzi F, Trombetta C, Liguori G, Ongaro L. Plication surgery does not produce additional loss of length in Peyronie's disease patients. Int J Impot Res 2024:10.1038/s41443-024-00852-3. [PMID: 38388784 DOI: 10.1038/s41443-024-00852-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 02/05/2024] [Accepted: 02/14/2024] [Indexed: 02/24/2024]
Abstract
Nesbit's procedure remains a cornerstone in surgical management of Peyronie's disease, despite the subjective loss of penile length. This retrospective study demonstrates that the perceived length loss has already occurred prior to surgery and that the Nesbit's procedure does not produce additional loss of length. Ninety-one patients who had undergone Nesbit's procedure between 2017 and 2022 at the Department of Urology of the University of Trieste were enrolled in the study. Preoperative stretched penile length and postoperative stretched penile length were measured. The curvature was uniplanar in 78 patients and biplanar in the remainder. Mean degree of the main curvature was 52.58° ± 14.13° and mean number of plications was 2.42 ± 1.07. Analysis revealed that the median of the differences between preoperative stretched penile length and postoperative stretched penile length was not significant (p = 0.466). According to our results, no significant penile shortening occurs as immediate consequence of Nesbit's procedure, as length is defined by the shorter side of the shaft affected by Peyronie's disease. Hence the length loss should have to be attributed to Peyronie's disease itself and could have been accurately predicted preoperatively allowing for a more accurate counseling of patients. Further studies are pending to assess potential postoperative loss of length due to scarring contracture.
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Affiliation(s)
- Giulio Garaffa
- Department of Urology, St. George's University Hospital, London, UK.
| | - Fabio Traunero
- Department of Urology, University or Trieste, Cattinara Hospital - ASUGI, Trieste, Italy
| | - Francesco Claps
- Department of Urology, University or Trieste, Cattinara Hospital - ASUGI, Trieste, Italy
| | - Nicola Pavan
- Department of Surgical, Oncological and Oral Sciences, University of Palermo, 90127, Palermo, Italy
| | - Giulio Rossin
- Department of Urology, University or Trieste, Cattinara Hospital - ASUGI, Trieste, Italy
| | - Andrea Piasentin
- Department of Urology, University or Trieste, Cattinara Hospital - ASUGI, Trieste, Italy
| | - Michele Rizzo
- Department of Urology, University or Trieste, Cattinara Hospital - ASUGI, Trieste, Italy
| | - Arianna Biasatti
- Department of Urology, University or Trieste, Cattinara Hospital - ASUGI, Trieste, Italy
| | - Federico Zorzi
- Department of Urology, University or Trieste, Cattinara Hospital - ASUGI, Trieste, Italy
| | - Carlo Trombetta
- Department of Urology, University or Trieste, Cattinara Hospital - ASUGI, Trieste, Italy
| | - Giovanni Liguori
- Department of Urology, University or Trieste, Cattinara Hospital - ASUGI, Trieste, Italy
| | - Luca Ongaro
- Department of Urology, University or Trieste, Cattinara Hospital - ASUGI, Trieste, Italy
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Bielajew BJ, Nordberg RC, Hu JC, Athanasiou KA, Eleswarapu SV. Tissue anisotropy and collagenomics in porcine penile tunica albuginea: Implications for penile structure-function relationships and tissue engineering. Acta Biomater 2023; 169:130-137. [PMID: 37579910 DOI: 10.1016/j.actbio.2023.08.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 08/02/2023] [Accepted: 08/09/2023] [Indexed: 08/16/2023]
Abstract
The tunica albuginea (TA) of the penis is an elastic layer that serves a structural role in penile erection. Disorders affecting the TA cause pain, deformity, and erectile dysfunction. There is a substantial clinical need for engineered replacements of TA, but data are scarce on the material properties and biochemical composition of healthy TA. The objective of this study was to assess tissue organization, protein content, and mechanical properties of porcine TA to establish structure-function relationships and design criteria for tissue engineering efforts. TA was isolated from six pigs and subjected to histomorphometry, quantification of collagen content and pyridinoline crosslinks, bottom-up proteomics, and tensile mechanical testing. Collagen was 20 ± 2%/wet weight (WW) and 53 ± 4%/dry weight (DW). Pyridinoline content was 426 ±131 ng/mg WW, 1011 ± 190 ng/mg DW, and 45 ± 8 mmol/mol hydroxyproline. Bottom-up proteomics identified 14 proteins with an abundance of >0.1% of total protein. The most abundant collagen subtype was type I, representing 95.5 ± 1.5% of the total protein in the samples. Collagen types III, XII, and VI were quantified at 1.7 ± 1.0%, 0.8 ± 0.2%, and 0.4 ± 0.2%, respectively. Tensile testing revealed anisotropy: Young's modulus was significantly higher longitudinally than circumferentially (60 ± 18 MPa vs. 8 ± 5 MPa, p < 0.01), as was ultimate tensile strength (16 ± 4 MPa vs. 3 ± 3 MPa, p < 0.01). Taken together, the tissue mechanical and compositional data obtained in this study provide important benchmarks for the development of TA biomaterials. STATEMENT OF SIGNIFICANCE: The tunica albuginea of the penis serves an important structural role in physiologic penile erection. This tissue can become damaged by disease or trauma, leading to pain and deformity. Treatment options are limited. Little is known about the precise biochemical composition and biomechanical properties of healthy tunica albuginea. In this study, we characterize the tissue using proteomic analysis and tensile testing to establish design parameters for future tissue engineering efforts. To our knowledge, this is the first study to quantify tissue anisotropy and to use bottom-up proteomics to characterize the composition of penile tunica albuginea.
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Affiliation(s)
- Benjamin J Bielajew
- Department of Biomedical Engineering, University of California Irvine, Irvine, CA, USA
| | - Rachel C Nordberg
- Department of Biomedical Engineering, University of California Irvine, Irvine, CA, USA
| | - Jerry C Hu
- Department of Biomedical Engineering, University of California Irvine, Irvine, CA, USA
| | - Kyriacos A Athanasiou
- Department of Biomedical Engineering, University of California Irvine, Irvine, CA, USA
| | - Sriram V Eleswarapu
- Department of Urology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA.
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Roadman D, Wang V, Langbo W, Paddock D, Levine L. Predictors of hinge effect in patients with Peyronie's disease. J Sex Med 2023; 20:1222-1227. [PMID: 37460401 DOI: 10.1093/jsxmed/qdad087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 06/01/2023] [Accepted: 06/06/2023] [Indexed: 09/02/2023]
Abstract
BACKGROUND Patients with Peyronie's disease present with a variety of penile deformities. Those with hinge effect can experience bothersome buckling of the erection and instability during penetrative sex; however, the actual characteristics and clinical implications are not fully understood. AIM To determine the factors that cause hinge effect and to assess the role on surgical intervention. METHODS This retrospective review included 1223 consecutive patients who were examined by a single surgeon and had a complete penile duplex evaluation with curvature and hinge assessment. Baseline demographics, penile duplex findings, and clinical outcomes were used to assess for predictors of hinge effect. OUTCOMES Analyses were performed to assess preoperative predictors of hinge effect and surgical intervention. RESULTS Hinge effect was observed at the time of penile duplex Doppler examination in 33% of patients. Circumferential girth discrepancy at point of indentation (odds ratio [OR] 1.82; P < .001), rigidity of erection (OR, 0.82; P = .002), and degree of primary curvature (OR, 1.03; P < .001) predicted the presence of hinge effect. When controlling for rigidity, a girth discrepancy >1 cm did appear to be associated with a hinge. CLINICAL IMPLICATIONS Circumferential girth discrepancy >1 cm, regardless of erectile rigidity, can be associated with hinge effect. STRENGTHS AND LIMITATIONS As a strength, this study included the largest cohort of patients with Peyronie's disease, all of whom were examined in a rigorous and uniform manner via the same operative counseling. However, the study is limited by its retrospective nature and potential for selection and observer bias, given that the treating physician was also assessing all penile deformities as well as performing operative intervention. CONCLUSIONS The presence of hinge effect can cause instability of erections during penetrative sex. Multiple factors may predispose patients to a hinge effect, including the quality of erection and severity of curvature. But when controlling for rigidity, a girth discrepancy >1 cm did appear to be associated with a hinge. While many factors, such as baseline erectile dysfunction and severity of curvature, are important in determining the optimal surgical intervention, assessing for preoperative hinge effect also influenced the surgical approach.
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Affiliation(s)
- Daniel Roadman
- Department of Urology, Rush University Medical Center, Chicago, IL 60612, United States
| | - Vinson Wang
- The Urology Group, Cincinnati, OH 45212, United States
| | - William Langbo
- Department of Urology, Rush University Medical Center, Chicago, IL 60612, United States
| | - David Paddock
- Department of Urology, Rush University Medical Center, Chicago, IL 60612, United States
| | - Laurence Levine
- Department of Urology, Rush University Medical Center, Chicago, IL 60612, United States
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Yang CH, Lin DY, Lin YS, Hsu CY, Tung MC, Tan KT, Ou YC. The Immunological Microenvironment and the Emerging Role of Stem Cells Therapy in Peyronie's Disease: A Systematic Narrative Review. Int J Mol Sci 2023; 24:ijms24010777. [PMID: 36614220 PMCID: PMC9821411 DOI: 10.3390/ijms24010777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 12/25/2022] [Accepted: 12/26/2022] [Indexed: 01/03/2023] Open
Abstract
Current literature has indicated that Peyronie's disease (PD) could be initiated by microtrauma and the subsequent inflammation episodes that follow. PD could be sorted into acute or chronic status, and it can differ when selecting the clinical therapeutics. PD would cause pain and penile deformity to diseased men and impair their erectile function. Occasionally, surgical revision of the penis might be needed to correct the penile curvature. We find that there are limited effective options of intra-lesion injections for the PD plaques. By searching the databases and screening the literature with the PRISMA 2020 guideline, we observed that several preclinical studies that applied stem cell therapy in treating PD were fruitful in the acute phase. Although in the chronic phase of PD, erectile parameters were not significantly improved, and therefore, future studies might be better elevated in certain aspects, such as the sites selected for harvesting stem cells or changing the centrifugation forces. In this review, we concluded the contemporary understanding of inflammatory microenvironments in PD, the stem cell therapy in PD, and our perspectives on future studies. We concluded that there may be great potential in stem cell therapy for treating both acute and chronic phases PD.
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Affiliation(s)
- Che-Hsueh Yang
- Division of Urology, Department of Surgery, Tungs’ Taichung MetroHarbor Hospital, Taichung 435, Taiwan
| | - Dian-Yu Lin
- Division of Urology, Department of Surgery, Tungs’ Taichung MetroHarbor Hospital, Taichung 435, Taiwan
- Joshua Taipei Hernia Center, Central Clinic & Hospital, Taipei 106, Taiwan
- Department of Urology, College of Medicine and Shu-Tien Urological Research Center, National Yang Ming Chiao Tung University, Taipei 106, Taiwan
| | - Yi-Sheng Lin
- Division of Urology, Department of Surgery, Tungs’ Taichung MetroHarbor Hospital, Taichung 435, Taiwan
| | - Chao-Yu Hsu
- Division of Urology, Department of Surgery, Tungs’ Taichung MetroHarbor Hospital, Taichung 435, Taiwan
| | - Min-Che Tung
- Division of Urology, Department of Surgery, Tungs’ Taichung MetroHarbor Hospital, Taichung 435, Taiwan
| | - Kok-Tong Tan
- Division of General Surgery, Department of Surgery, Tungs’ Taichung MetroHarbor Hospital, Taichung 435, Taiwan
- Correspondence: (K.-T.T.); (Y.-C.O.)
| | - Yen-Chuan Ou
- Division of Urology, Department of Surgery, Tungs’ Taichung MetroHarbor Hospital, Taichung 435, Taiwan
- Correspondence: (K.-T.T.); (Y.-C.O.)
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Calace FP, Napolitano L, Langella NA, Barone B, Trama F. Peyronie's disease: where are we at? J Basic Clin Physiol Pharmacol 2023; 34:1-4. [PMID: 36351265 DOI: 10.1515/jbcpp-2022-0206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Francesco P Calace
- Urology Unit, Department of Neurosciences, Reproductive Sciences and Odontostomatology, University of Naples "Federico II", Naples, Italy
| | - Luigi Napolitano
- Urology Unit, Department of Neurosciences, Reproductive Sciences and Odontostomatology, University of Naples "Federico II", Naples, Italy
| | | | - Biagio Barone
- Urology Unit, Department of Neurosciences, Reproductive Sciences and Odontostomatology, University of Naples "Federico II", Naples, Italy
| | - Francesco Trama
- Department of Surgical and Biomedical Science, Andrological and Urogynecological Clinic, Santa Maria Terni Hospital, University of Perugia, Terni, Italy
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Ainayev Y, Zhanbyrbekuly U, Gaipov A, Suleiman M, Kissamedenov N, Zhaparov U, Urazova S, Rakhmetova N, Turebayev D, Keulimzhayev N, Zhankina R, Khairli G. Comparison of technical success and adverse events of plaque incision and grafting methods in patients with Peyronie's disease: Tunica vaginalis versus buccal mucosa. Urology 2022; 170:226-233. [PMID: 36115431 DOI: 10.1016/j.urology.2022.07.063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 06/27/2022] [Accepted: 07/10/2022] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To compare the clinical outcomes of Peyronie's disease (PD) patients who were treated by plaque incision and grafting either with tunica vaginalis (TV) or buccal mucosa (BM) grafts. METHODS PD patients in BM (n=20) and TV group (n=20) were recruited between 2013 and 2020. Erectile dysfunction was assessed by short form of International Index of Erectile Function Questionnaire (IIEF-5). Technical success was defined as residual curvature ≤15°. Penile Doppler ultrasound was performed at baseline evaluation, 3-, and 24 months. Peak systolic velocity (PSV), end-diastolic velocity (EDV), and resistance index were measured in erect penis. Erect penile length and curvature angle were measured at baseline and at 3, 12, and 24 months. RESULTS Mean age of the groups was comparable (47.2±10.8 years in TV vs 46.5±9.9 years in BM groups). Baseline mean penile curvature was 48.0±6.6° (TV) and 50.3±11.6° (BM) (p<0.001). Mean residual curvature at 24-months visits was 12.4±4.9° (TV) and 7.9±3.7° (BM), not significantly different. Technical success rate was 90% for both groups at 24 months. Surgery significantly increased erect penile length in both groups. Mean preoperative IIEF-5 scores were 18.4±2.5 and 17.5±2.2 in TV and BM groups, respectively. In both groups, IIEF-5 scores significantly improved after surgery with no intergroup IIEF-5 difference (20.6±2.6 in TV and 21.3±2.2 in BM). Mean postoperative PSV significantly increased, EDV significantly decreased in both groups, however, there was no significant intergroup difference. CONCLUSION Both grafting materials provided similar beneficial effects regarding technical success, erectile dysfunction, and penile length.
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Affiliation(s)
- Yernur Ainayev
- Astana Medical University, Department of Urology and Andrology, Nur-Sultan, Kazakhstan
| | - Ulanbek Zhanbyrbekuly
- Astana Medical University, Department of Urology and Andrology, Nur-Sultan, Kazakhstan
| | - Abduzhappar Gaipov
- Nazarbayev University, School of Medicine, Department of Medicine, Nur-Sultan, Kazakhstan
| | - Makhmud Suleiman
- Astana Medical University, Department of Urology and Andrology, Nur-Sultan, Kazakhstan.
| | - Nurlan Kissamedenov
- JSC 'National Center of Neurosurgery', Department for Reception and Diagnosis, Nur-Sultan, Kazakhstan
| | - Ulan Zhaparov
- Astana Medical University, Department of Urology and Andrology, Nur-Sultan, Kazakhstan
| | - Saltanat Urazova
- Astana Medical University, Department of General Medical Practice No. 3, Nur-Sultan, Kazakhstan
| | - Nurila Rakhmetova
- Astana Medical University, Department of microbiology and virology named after Sh. I. Sarbasova, Nur-Sultan, Kazakhstan
| | - Dulat Turebayev
- Astana Medical University, Department of Surgery with an angiosurgery and plastic surgery course, Nur-Sultan, Kazakhstan
| | - Nurbol Keulimzhayev
- Astana Medical University, Department of Urology and Andrology, Nur-Sultan, Kazakhstan
| | - Rano Zhankina
- Astana Medical University, Department of Urology and Andrology, Nur-Sultan, Kazakhstan
| | - Gafur Khairli
- Astana Medical University, Department of Urology and Andrology, Nur-Sultan, Kazakhstan
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Assessment of Conservative Combination Therapies for Active and Stable Peyronie's Disease: A Systematic Review and Meta-analysis. Eur Urol Focus 2022; 8:1520-1530. [PMID: 34924336 DOI: 10.1016/j.euf.2021.12.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 11/03/2021] [Accepted: 12/02/2021] [Indexed: 12/16/2022]
Abstract
CONTEXT In patients with Peyronie's disease (PD), oral, injected, or topical agents provide limited efficacy. In this setting, combination of two or more conservative treatments may improve symptoms further. OBJECTIVE To explore the effects of available conservative combination therapies for active and stable PD through a systematic review and meta-analysis. EVIDENCE ACQUISITION We searched multiple databases and sources of gray literature until June 2021. We included randomized or observational comparative studies assessing any conservative combination therapies for PD. We undertook a random-effect meta-analysis when at least two studies employed the same treatment modality (PROSPERO: CRD42021224517). EVIDENCE SYNTHESIS Overall, 13 studies on active PD and ten on stable PD (1962 participants) were included. Most included studies raised methodological concerns. In patients with active or stable PD, the available evidence is inconclusive to support the use of any combination treatment modality, such as intralesional verapamil injections, antioxidants, and other oral, injected, or topical agents. Based on data availability, we performed a meta-analysis to compare the effect of collagenase Clostridium histolyticum (CCH) plus adjunctive mechanical therapies (penile traction or vacuum pump) versus CCH monotherapy on penile curvature and length in patients with stable PD. CCH and adjunctive mechanical therapies resulted in an additional decrease of 0.3° in penile curvature (95% confidence interval [CI]: -3.97 to 4.49, I2 = 0%) and in an increase of 0.5 cm in penile length (95% CI: -0.32 to 1.4, I2 = 70%) compared with CCH monotherapy. CONCLUSIONS The available combination treatment modalities, including the addition of adjunctive mechanical therapies to CCH, do not improve symptoms further compared with monotherapy and should not be implemented in patients with active or stable PD. Further high-quality randomized trials combining only recommended treatments are mandatory. PATIENT SUMMARY Despite the interest in and optimism for combination treatment modalities, the road to an effective conservative therapy for Peyronie's disease still seems long.
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Goldstein I, Gelbard MK, Lipshultz LI. Clinical Significance of Shortened Penile Length and Alterations in Penile Length Following Treatment for Peyronie's Disease. Sex Med Rev 2022; 10:409-420. [PMID: 35772849 DOI: 10.1016/j.sxmr.2021.12.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 12/15/2021] [Accepted: 12/20/2021] [Indexed: 11/30/2022]
Abstract
INTRODUCTION Across many cultures, penis size has been associated with virility, and concerns about penile length are commonplace. Peyronie's disease (PD) is a known acquired cause of penile shortening. OBJECTIVES This paper describes the psychosocial impacts of penile length on men and their partners, both generally and in men with PD, and evaluates the effect of PD treatments (eg, collagenase clostridium histolyticum , surgery, mechanical therapy) on this outcome measure. METHODS A PubMed database search was performed for English language articles through July 2021. Main outcome measures were association of penile length with emotional well-being, selfesteem, and relationship satisfaction in men with PD, and change from baseline penile length after treatment. RESULTS Shortened penile length caused by PD can negatively impact patient and partner quality of life, including effects on body image, emotional well-being, sexual function, and interpersonal relationships. In men with PD, studies have demonstrated an association between loss of penile length and emotional problems, reduced satisfaction with sexual performance, poor self-esteem, depression, and relationship difficulties. Loss of penile length can frequently occur after surgery for PD (including plication, plaque incision/excision with grafting, and penile implant). Advanced surgical techniques may preserve/increase penile length, but the increased risks associated with these complex procedures must be carefully considered. Treatment with collagenase clostridium histolyticum does not appear to negatively impact penile length, and 5-year follow-up data suggest potential longterm posttreatment improvements in this outcome measure. Penile traction therapy, either alone or as adjunctive therapy, may increase penile length in men with PD, but nonadherence may limit improvement. CONCLUSION Changes in penile length are important to many men, particularly those with PD, and should be considered during PD treatment selection. Penile length should be measured objectively before and after treatment for PD and should be included as an outcome measure in future studies on treatment effectiveness. Goldstein I, Gelbard MK, Lipshultz LI. Clinical Significance of Shortened Penile Length and Alterations in Penile Length Following Treatment for Peyronie's Disease. Sex Med Rev 2022;10:409-420.
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Saphenous Vein Graft for Treatment of Peyronie’s Disease, a Comparison between Single and Multiple Graft Reconstruction. World J Plast Surg 2022; 11:62-67. [PMID: 36117889 PMCID: PMC9446129 DOI: 10.52547/wjps.11.2.62] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 02/15/2022] [Indexed: 11/30/2022] Open
Abstract
Background: Surgical reconstruction is the gold standard of treatment for Peyronie’s disease (PD). Grafting procedures provide satisfactory outcomes in patients with complex curvature, short penile length, and without previous erectile dysfunction (ED). We aimed to compare two different grafting methods of reconstruction in patients with PD. Method: Fifty-two PD patients at Imam-Reza hospital of Mashhad from October 2011 to January 2019 with stable plaque, penile angulation of >60˚, complex curvature, and without ED who consented to cooperate, included in our study and divided into two groups. The first group consists of 26 patients, undergone grafting through a double-Y incision and a single saphenous graft placed within the incision. For the second group, two smaller saphenous vein grafts were placed in the two parallel incisions. ED assessed pre- and post-operational via the International index of erectile function. Penile angulation less than 20 degrees was considered a favorable outcome. Patients followed for 18 months, and sacculation, penile shortening, post-operation infection, and penile hypoesthesia were assessed as complications. We used a paired t-test to compare these two groups. Results: ED was 25% and 12% in the first and the second group, respectively. Statistics showed no difference between the two groups regarding pre and post-operational ED (P=0.1). Regarding complications during follow-up, sacculation occurred in four patients of the first group and none of the second group patients but no significant difference (P=0.23). Conclusion: We found no superiority to declare between these two procedures, although regarding the small sample size of our study, further evaluations are needed to establish more reliable results.
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