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Antonio Grandez-Urbina" }, { "@type": "Person", "name": "Elizabeth Corrales-Acosta" }, { "@type": "Person", "name": "J. Eduardo Tejeda-Mariaca" }, { "@type": "Person", "name": "Rafael Pichardo-Rodriguez" }, { "@type": "Person", "name": "Herney Garcia-Perdomo" } ], "publisher": { "@type": "Organization", "name": "F1000Research", "logo": { "@type": "ImageObject", "url": "https://f1000research.com/img/AMP/F1000Research_image.png", "height": 480, "width": 60 } }, "image": { "@type": "ImageObject", "url": "https://f1000research.com/img/AMP/F1000Research_image.png", "height": 1200, "width": 150 }, "description": "Background: Penile necrosis is a rare condition that may present in patients with diabetes mellitus or chronic kidney disease (CKD). The recommended treatment is controversial. We report a case of penile necrosis in a diabetic patient caused by episode of paraphimosis associated with uremic arteriopathy treated with partial amputation. Clinical Case: A 53-year-old male with a background of arterial hypertension, diabetes mellitus and CKD in hemodialysis. The patient presented with paraphimosis and glans necrosis. An emergency circumcision was carried out. A doppler ultrasound found fluid collection in the left corpus cavernosum, parietal vascular calcifications and vascular insufficiency in the corpus cavernosum that suggested necrosis. A partial amputation of the penis was carried out. After three years of follow-up, the outcome has remained favorable. Conclusions: Penile necrosis is a rare but serious complication of terminal CKD. In these patients, systemic calciphylaxis is usually observed. The main take-away lesson is that a multidisciplinary approach is necessary." } { "@context": "http://schema.org", "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": "1", "item": { "@id": "https://f1000research.com/", "name": "Home" } }, { "@type": "ListItem", "position": "2", "item": { "@id": "https://f1000research.com/browse/articles", "name": "Browse" } }, { "@type": "ListItem", "position": "3", "item": { "@id": "https://f1000research.com/articles/8-1133", "name": "Case Report: Penile necrosis associated to paraphimosis with calciphylaxis..." } } ] } Home Browse Case Report: Penile necrosis associated to paraphimosis with calciphylaxis... ALL Metrics - Views Downloads Get PDF Get XML Cite How to cite this article Grandez-Urbina JA, Corrales-Acosta E, Tejeda-Mariaca JE et al. Case Report: Penile necrosis associated to paraphimosis with calciphylaxis due to terminal chronic kidney disease [version 1; peer review: 2 approved] . F1000Research 2019, 8 :1133 ( https://doi.org/10.12688/f1000research.18834.1 ) NOTE: If applicable, it is important to ensure the information in square brackets after the title is included in all citations of this article. Close Copy Citation Details Export Export Citation Sciwheel EndNote Ref. Manager Bibtex ProCite Sente EXPORT Select a format first Track Share ▬ ✚ Case Report Case Report: Penile necrosis associated to paraphimosis with calciphylaxis due to terminal chronic kidney disease [version 1; peer review: 2 approved] J. Antonio Grandez-Urbina https://orcid.org/0000-0003-4876-3755 1 , Elizabeth Corrales-Acosta 2 , J. Eduardo Tejeda-Mariaca 3 , Rafael Pichardo-Rodriguez https://orcid.org/0000-0003-3316-4557 4,5 , Herney Garcia-Perdomo 6 J. Antonio Grandez-Urbina https://orcid.org/0000-0003-4876-3755 1 , Elizabeth Corrales-Acosta 2 , [...] J. Eduardo Tejeda-Mariaca 3 , Rafael Pichardo-Rodriguez https://orcid.org/0000-0003-3316-4557 4,5 , Herney Garcia-Perdomo 6 PUBLISHED 19 Jul 2019 Author details Author details 1 Universidad Continental, Calle Junín 355, Miraflores, Lima, 15046, Peru 2 Urology Deparment, Hospital Alberto Leopoldo Barton Thompson, Avenida Argentina 29, Callao, 07001, Peru 3 Urology Department, Hospital Nacional Alberto Sabogal Sologuren, Jr. Colina 1081 Bellavista, Callao, 07011, Peru 4 Biomedical Research Institute, Universidad Ricardo Palma, Avenida Alfredo Benavides 5430, Santiago de Surco, Lima, 15039, Peru 5 Clinica de Urologia Avanzada Urozen, Avenida Javier Prado Este 3028, San Borja, Lima, 15031, Peru 6 Medicine School, Universidad del Valle, Calle 4B # 36-00, Cali, Colombia J. Antonio Grandez-Urbina Roles: Conceptualization, Investigation, Supervision, Writing – Original Draft Preparation, Writing – Review & Editing Elizabeth Corrales-Acosta Roles: Conceptualization, Investigation, Project Administration, Writing – Original Draft Preparation, Writing – Review & Editing J. Eduardo Tejeda-Mariaca Roles: Conceptualization, Software, Visualization, Writing – Original Draft Preparation, Writing – Review & Editing Rafael Pichardo-Rodriguez Roles: Methodology, Resources, Writing – Original Draft Preparation, Writing – Review & Editing Herney Garcia-Perdomo Roles: Writing – Original Draft Preparation, Writing – Review & Editing OPEN PEER REVIEW DETAILS REVIEWER STATUS Abstract Background : Penile necrosis is a rare condition that may present in patients with diabetes mellitus or chronic kidney disease (CKD). The recommended treatment is controversial. We report a case of penile necrosis in a diabetic patient caused by episode of paraphimosis associated with uremic arteriopathy treated with partial amputation. Clinical Case : A 53-year-old male with a background of arterial hypertension, diabetes mellitus and CKD in hemodialysis. The patient presented with paraphimosis and glans necrosis. An emergency circumcision was carried out. A doppler ultrasound found fluid collection in the left corpus cavernosum, parietal vascular calcifications and vascular insufficiency in the corpus cavernosum that suggested necrosis. A partial amputation of the penis was carried out. After three years of follow-up, the outcome has remained favorable. Conclusions : Penile necrosis is a rare but serious complication of terminal CKD. In these patients, systemic calciphylaxis is usually observed. The main take-away lesson is that a multidisciplinary approach is necessary. READ ALL READ LESS Keywords Penile necrosis, Calciphylaxis, Nephropathy Corresponding Author(s) J. Antonio Grandez-Urbina ( [email protected] ) Close Corresponding author: J. Antonio Grandez-Urbina Competing interests: No competing interests were disclosed. Grant information: The author(s) declared that no grants were involved in supporting this work. Copyright: © 2019 Grandez-Urbina JA et al . This is an open access article distributed under the terms of the Creative Commons Attribution License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. How to cite: Grandez-Urbina JA, Corrales-Acosta E, Tejeda-Mariaca JE et al. Case Report: Penile necrosis associated to paraphimosis with calciphylaxis due to terminal chronic kidney disease [version 1; peer review: 2 approved] . F1000Research 2019, 8 :1133 ( https://doi.org/10.12688/f1000research.18834.1 ) First published: 19 Jul 2019, 8 :1133 ( https://doi.org/10.12688/f1000research.18834.1 ) Latest published: 19 Jul 2019, 8 :1133 ( https://doi.org/10.12688/f1000research.18834.1 ) Introduction Calciphylaxis is the process of calcification in small and medium vessels, resulting in necrosis in distal regions of the body such as the lower extremities and the penis, the latter being very infrequent 1 . This condition may present in patients with diabetes mellitus and/or chronic kidney disease (CKD). It has an incidence of 1–4% in patients with CKD that receive hemodialysis 2 . Due to the technical advances in hemodialysis and the large number of patients that receive this treatment for long periods of time, the number of cases and risk of calciphylaxis has grown 3 . Calcific uremic arteriolopathy (CUA), also known as calciphylaxis, is a rare complication of CKD where there is occlusion of microvasculature with mural calcification of the arterioles, causing severe ischemia and necrosis of the tissue 4 . CUA is a major complication of CKD, which demands timely diagnosis. It carries a high risk of mortality and various complications 4 . It is possible to develop ischemic disorders due to arterial calcifications produced by hypercalcemia, as a result of the hyperparathyroidism secondary to CKD 5 . There are different therapeutic options, but treatment is still controversial. There are no well-established treatment protocols for penile calciphylaxis, and most regimens have been shown to have modest success at best. Treatment options include local wound care, partial or total penectomy, parathyroidectomy, sodium thiosulfate and revascularization 6 , 7 . On the other hand, paraphimosis occurs when the foreskin of the penis is retracted over the glans and cannot be replaced in its normal position. The tight ring of preputial skin constricts the distal penis causing vascular occlusion and, if not dealt with quickly, can lead to tissue necrosis and partial amputation 8 . Complications are time related most commonly due to misdiagnosis 8 . There are few publications related to this uncommon complication. We report a case of a patient with end stage renal disease (ESRD) that developed calciphylaxis and consequently distal necrosis of the penis and was treated with an amputation, which resulted in a favorable outcome. Case report Patient information A 53-year-old, Mestizo patient that works as an accounting assistant was admitted to our hospital in emergency room. The patient had a prior medical history of arterial hypertension, diabetes mellitus type 2 and ESRD, for which the patient had been undergoing hemodialysis for two years prior to the initial consultation. No prior history of any surgical intervention was indicated. The patient presented to the emergency ward with an ulcerative and painful lesion in the glans, which had been present for two weeks. Clinical findings A physical examination revealed foul-smelling distal necrosis of the penis and paraphimosis ( Figure 1 ) with non-palpable inguinal nodes. No other relevant physical findings were described. The laboratory examination showed elevated creatinine (6.36 mg/dL), urea (114 mg/dL), glucose (119 mg/dL), elevated potassium (5.06 mmol/L), C-reactive protein (8.23 mg/dL) and seric calcium (10.1 mg /dl). On the other hand, hemoglobin (7.9 mg/dL), sodium (134 mmol/L) and albumin (2.9 g/dL) levels were found to be below the normal range. No other significant abnormalities were noted. Doppler ultrasound scans showed fluid collection in the left cavernous body, parietal vascular calcifications and vascular insufficiency in both cavernous bodies, suggestive of penile necrosis. The pathology report confirmed the diagnosis of ischemic penile necrosis due to systemic calciphylaxis. Figure 1. Distal necrosis of penis. Treatment The patient was treated with a standard circumcision and resection of the scar in the emergency operating room. Inflammatory tissue was evident but wound dehiscence was not observed in the postoperative period. Subsequently, he received 30 sessions in the hyperbaric oxygen chamber over four weeks. The treatment was carried out at 2.8 absolute atmospheres for a duration of two hours. Broad antibiotic therapy was used in order to reduce the progression of the necrosis (a corrected dose for patients on hemodialysis of 250g Imipenem three times a day) for two weeks. Despite the treatment, the clinical response was not a favorable; we identified by physical examination that the necrotic lesion continued, and the general state of the patient began to worsen. Therefore, in order to avoid a worsening in the infection it was decided that a partial amputation of the penis with preservation of 4cm of penile length would be performed, which had a good outcome, evidencing clinical improvement and a decrease in C-reactive protein ( Figure 2 ). Figure 2. Immediate post-surgical penile partial resection. Outcome and follow-up After three years of follow-up, the patient did not present with urinary symptoms or pain. The patient can void spontaneously. A timeline of the patient’s medical history, interventions and follow-up is shown in Figure 3 . Figure 3. Timeline of the important points in the patient’s medical history, interventions and follow-up. Discussion Penile necrosis in patients with ESRD due to calciphylaxis is infrequent 9 . In ESRD, the origin of the calciphylaxis is related to secondary hyperparathyroidism, as a result of chronic hyperphosphatemia 10 . Calciphylaxis results in the total obstruction of the arterial lumen due to arterial wall calcification, producing acute ischemia and necrosis of the affected tissue 3 . In our case, the arterial irrigation of the penis was affected, producing distal necrosis, an unusual event that is usually avoided due to abundant irrigation and collateral circulation. It represents a poor prognostic sign in ESRD patients and is an indicator of metastatic vascular calcification. Pathogenesis of this life-threatening condition is not clearly understood, and treatment is also controversial 11 . The absence of follow-up and treatment with calcitriol for the control of calcium metabolism prior to diagnosis, adding to the absence of treatment for secondary hyperparathyroidism and subsequent calciphylaxis, were the main limitations in this case. However, the post-treatment follow-up and the histological confirmation of the calciphylaxis were important strengths that allowed us to confirm that following the guidelines in previous reports, which recommend starting with the conservative management and following with surgical treatment, were effective and safe with a satisfactory conclusion, despite the high mortality reported for this group of patients. Penile necrosis produced by calciphylaxis is presented more frequently in patients between 40 and 60 years old. It is associated with ESRD and diabetes mellitus in 100% and 76% of cases respectively, of which our patient had both of risk factors 3 . Other risk factors obesity, arterial hypertension, use of corticoids, use of inhibitors of vascular calcification and oral anticoagulants 3 . Our patient had a history of arterial hypertension. The image studies to perform include doppler ultrasound of the penis, computed tomography (CT) and magnetic resonance imaging (MRI) 12 . It is suggested that doppler ultrasound is performed as the first line image study to evaluate vascular permeability and blood flow of the penile vessels. CT could be performed secondarily to evaluate with more sensitivity the extension of the vascular calcification into the soft tissues, necrotizing infection of soft tissues and/or ischemia with the presence of air 12 . MRI scans can identify with more specificity the necrotic borders of the affected tissues 12 . In our case, we could only perform a doppler ultrasound within the clinical context of the patient. The rest of the image studies could not be performed as it was necessary to rapidly initiate the required treatment. For the management of penile necrosis there are different therapeutic options, from conservative management to surgical intervention, according to the necessity of the case. Nevertheless, it has a poor prognosis and management is controversial 9 , 12 . In addition to therapy for penile necrosis, it is recommended to initiate treatment for secondary hyperparathyroidism, in order to reduce long term mortality 6 , 13 . In patients undergoing hemodialysis with hyperphosphatemia, it is recommended to use phosphate blockers that do not contain calcium, and in patients with elevated levels of parathormone (PTH), it is recommended to use cinacalcet 11 . Additionally, studies have reported that necrotic tissue can become a culture medium for multiple microorganisms, so the use of broad-spectrum antibiotics is recommended as a prophylactic measure and empirical therapy 11 . Empirical antibiotic therapy was used for this patient, as well as surgical treatment, due to the poor response to conservative measures. Treatment for hyperphosphatemia could not be initiated because of the unavailability of the drugs. Karpman et al. demonstrated in a case series of 34 patients that survival rate after partial penile amputation and thyroidectomy was superior to partial amputation by itself, with rates of 75% and 28% respectively. The overall mortality was 64%, with a mean time of 2.5 months until death 6 . The patient had a favorable recovery after partial penectomy without recurrence of necrosis, despite the failure of the first therapeutic line, even though it has been reported that an increase of vascular flow can improve oxygen transport to the ischemic site 11 , 12 . Conclusions Penile necrosis constitutes a rare but serious complication associated with ESRD. Rapid and timely management of paraphimosis could improve outcomes in patients with multiple co-morbidities. For a good clinical outcome, it is necessary to have a high clinical suspicion and to have knowledge of the different elements involved in clinical support. A multidisciplinary approach is necessary in the management of this complication. Data availability All data underlying the results are available as part of the article and no additional source data are required. Consent Written informed consent for publication of their clinical details and clinical images were obtained from the patient. Grant information The author(s) declared that no grants were involved in supporting this work. Faculty Opinions recommended References 1. Malthouse T, Lam W, Brewin J, et al. : Penile lesion in end-stage renal failure - cancer or otherwise?: Calcific uremic arteriolopathy presenting with a penile lesion. Can Urol Assoc J. 2015; 9 (3–4): 136–7. PubMed Abstract | Publisher Full Text | Free Full Text 2. Hafner J, Keusch G, Wahl C, et al. : Calciphylaxis: a syndrome of skin necrosis and acral gangrene in chronic renal failure. Vasa. 1998; 27 (3): 137–43. PubMed Abstract 3. Barthelmes L, Chezhian C, Thomas KJ: Progression to wet gangrene in penile necrosis and calciphylaxis. Int Urol Nephrol. 2002; 34 (2): 231–5. PubMed Abstract | Publisher Full Text 4. Ahmed MM, Zakir A, Ahsraf MF, et al. : Chronic Kidney Disease and Calciphylaxis: A Literature Review. Cureus. 2018; 10 (9): e3334. PubMed Abstract | Publisher Full Text | Free Full Text 5. Buades Fuster JM, Sanchís Cortés P, Perelló Bestard J, et al. : Plant phosphates, phytate and pathological calcifications in chronic kidney disease. Nefrologia. 2017; 37 (1): 20–28. PubMed Abstract | Publisher Full Text 6. Karpman E, Das S, Kurzrock EA: Penile calciphylaxis: analysis of risk factors and mortality. J Urol. 2003; 169 (6): 2206–9. PubMed Abstract | Publisher Full Text 7. Palmisano F, Gadda F, Spinelli MG, et al. : Glans penis necrosis following paraphimosis: A rare case with brief literature review. Urol Case Rep. 2018; 16 : 57–58. PubMed Abstract | Publisher Full Text | Free Full Text 8. Zillioux J, Geisenhoff A, Gray M: Management of penile calciphylaxis. A Case Study. J Wound Ostomy Continence Nurs. 2018; 45 (6): 536–539. PubMed Abstract | Publisher Full Text 9. Stein M, Anderson C, Ricciardi R, et al. : Penile gangrene associated with chronic renal failure: report of 7 cases and review of the literature. J Urol. 1994; 152 (6 Pt 1): 2014–6. PubMed Abstract | Publisher Full Text 10. Martínez GM, García JMO, Sámano VL, et al. : Necrosis de pene: Experiencia en el Hospital de Especialidades Centro Médico Nacional Siglo XXI. Bol Col Mex Urol. 2005; 20 (1): 10–4. Reference Source 11. Haider I, Siddugi M, Naji W, et al. : Calciphylaxis leading to penile necrosis. J Pak Med Assoc. 2014; 64 (6): 711–3. PubMed Abstract 12. Campbell RA, Alzweri LM, Sopko NA, et al. : Penile Calciphylaxis: The Use of Radiological Investigations in the Management of a Rare and Challenging Condition. Urol Case Rep. 2017; 13 : 113–116. PubMed Abstract | Publisher Full Text | Free Full Text 13. Grande M, Facchini F, La Rosa M, et al. : [Calciphylaxis and penile necrosis: a case report and review of the literature]. Urologia. 2010; 77 (Suppl 16): 47–50. PubMed Abstract Comments on this article Comments (0) Version 1 VERSION 1 PUBLISHED 19 Jul 2019 ADD YOUR COMMENT Comment Author details Author details 1 Universidad Continental, Calle Junín 355, Miraflores, Lima, 15046, Peru 2 Urology Deparment, Hospital Alberto Leopoldo Barton Thompson, Avenida Argentina 29, Callao, 07001, Peru 3 Urology Department, Hospital Nacional Alberto Sabogal Sologuren, Jr. Colina 1081 Bellavista, Callao, 07011, Peru 4 Biomedical Research Institute, Universidad Ricardo Palma, Avenida Alfredo Benavides 5430, Santiago de Surco, Lima, 15039, Peru 5 Clinica de Urologia Avanzada Urozen, Avenida Javier Prado Este 3028, San Borja, Lima, 15031, Peru 6 Medicine School, Universidad del Valle, Calle 4B # 36-00, Cali, Colombia J. Antonio Grandez-Urbina Roles: Conceptualization, Investigation, Supervision, Writing – Original Draft Preparation, Writing – Review & Editing Elizabeth Corrales-Acosta Roles: Conceptualization, Investigation, Project Administration, Writing – Original Draft Preparation, Writing – Review & Editing J. Eduardo Tejeda-Mariaca Roles: Conceptualization, Software, Visualization, Writing – Original Draft Preparation, Writing – Review & Editing Rafael Pichardo-Rodriguez Roles: Methodology, Resources, Writing – Original Draft Preparation, Writing – Review & Editing Herney Garcia-Perdomo Roles: Writing – Original Draft Preparation, Writing – Review & Editing Competing interests No competing interests were disclosed. Grant information The author(s) declared that no grants were involved in supporting this work. Article Versions (1) version 1 Published: 19 Jul 2019, 8:1133 https://doi.org/10.12688/f1000research.18834.1 Copyright © 2019 Grandez-Urbina JA et al . This is an open access article distributed under the terms of the Creative Commons Attribution License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Download Export To Sciwheel Bibtex EndNote ProCite Ref. Manager (RIS) Sente metrics Views Downloads F1000Research - - PubMed Central info_outline Data from PMC are received and updated monthly. - - Citations open_in_new 0 open_in_new 0 open_in_new SEE MORE DETAILS CITE how to cite this article Grandez-Urbina JA, Corrales-Acosta E, Tejeda-Mariaca JE et al. Case Report: Penile necrosis associated to paraphimosis with calciphylaxis due to terminal chronic kidney disease [version 1; peer review: 2 approved] . F1000Research 2019, 8 :1133 ( https://doi.org/10.12688/f1000research.18834.1 ) NOTE: If applicable, it is important to ensure the information in square brackets after the title is included in all citations of this article. COPY CITATION DETAILS track receive updates on this article Track an article to receive email alerts on any updates to this article. TRACK THIS ARTICLE Share Open Peer Review Current Reviewer Status: ? Key to Reviewer Statuses VIEW HIDE Approved The paper is scientifically sound in its current form and only minor, if any, improvements are suggested Approved with reservations A number of small changes, sometimes more significant revisions are required to address specific details and improve the papers academic merit. Not approved Fundamental flaws in the paper seriously undermine the findings and conclusions Version 1 VERSION 1 PUBLISHED 19 Jul 2019 Views 0 Cite How to cite this report: Ahmed MM. Reviewer Report For: Case Report: Penile necrosis associated to paraphimosis with calciphylaxis due to terminal chronic kidney disease [version 1; peer review: 2 approved] . F1000Research 2019, 8 :1133 ( https://doi.org/10.5256/f1000research.20638.r51408 ) The direct URL for this report is: https://f1000research.com/articles/8-1133/v1#referee-response-51408 NOTE: it is important to ensure the information in square brackets after the title is included in this citation. Close Copy Citation Details Reviewer Report 06 Aug 2019 Munis M. Ahmed , Internal Medicine, Mayo Hospital, King Edward Medical University, Lahore, Pakistan Approved VIEWS 0 https://doi.org/10.5256/f1000research.20638.r51408 This is an interesting yet possible explanation for the outcome portrayed. Kindly work on the following fronts to improve the article: Ascertain the word count according to the journal guidelines for case reports. ... Continue reading READ ALL This is an interesting yet possible explanation for the outcome portrayed. Kindly work on the following fronts to improve the article: Ascertain the word count according to the journal guidelines for case reports. The introduction can be made more concise. Put the lab values in a tabular form. Remove extra headings from the case report section. In the treatment section, put "Broad-spectrum antibiotics" instead of "Broad antibiotics". Is the background of the case’s history and progression described in sufficient detail? Yes Are enough details provided of any physical examination and diagnostic tests, treatment given and outcomes? Yes Is sufficient discussion included of the importance of the findings and their relevance to future understanding of disease processes, diagnosis or treatment? Yes Is the case presented with sufficient detail to be useful for other practitioners? Yes Competing Interests: No competing interests were disclosed. Reviewer Expertise: Chronic Kidney Disease, Calciphylaxis. I confirm that I have read this submission and believe that I have an appropriate level of expertise to confirm that it is of an acceptable scientific standard. Close READ LESS CITE CITE HOW TO CITE THIS REPORT Ahmed MM. Reviewer Report For: Case Report: Penile necrosis associated to paraphimosis with calciphylaxis due to terminal chronic kidney disease [version 1; peer review: 2 approved] . F1000Research 2019, 8 :1133 ( https://doi.org/10.5256/f1000research.20638.r51408 ) The direct URL for this report is: https://f1000research.com/articles/8-1133/v1#referee-response-51408 NOTE: it is important to ensure the information in square brackets after the title is included in all citations of this article. COPY CITATION DETAILS Report a concern Respond or Comment COMMENT ON THIS REPORT Views 0 Cite How to cite this report: Grases F. Reviewer Report For: Case Report: Penile necrosis associated to paraphimosis with calciphylaxis due to terminal chronic kidney disease [version 1; peer review: 2 approved] . F1000Research 2019, 8 :1133 ( https://doi.org/10.5256/f1000research.20638.r51410 ) The direct URL for this report is: https://f1000research.com/articles/8-1133/v1#referee-response-51410 NOTE: it is important to ensure the information in square brackets after the title is included in this citation. Close Copy Citation Details Reviewer Report 30 Jul 2019 Felix Grases , Laboratory of Renal Lithiasis Research, University Institute of Health Sciences Research (IUNICS- IdisBa), University of Balearic Islands, Palma de Mallorca, Spain Approved VIEWS 0 https://doi.org/10.5256/f1000research.20638.r51410 The clinical case is well documented and due to its low prevalence it deserves to be indexed. The authors indicate that the patient had a favorable recovery after partial penectomy without recurrence of necrosis. What ... Continue reading READ ALL The clinical case is well documented and due to its low prevalence it deserves to be indexed. The authors indicate that the patient had a favorable recovery after partial penectomy without recurrence of necrosis. What has been the follow-up time since the patient had undergone penectomy? What measures will be taken to avoid recurrence? Why the treatments for hyperphosphatemia are unavailable? Why the use of inhibitors of vascular calcification can be considered as risk factors of calciphylaxis? Is the background of the case’s history and progression described in sufficient detail? Yes Are enough details provided of any physical examination and diagnostic tests, treatment given and outcomes? Partly Is sufficient discussion included of the importance of the findings and their relevance to future understanding of disease processes, diagnosis or treatment? Partly Is the case presented with sufficient detail to be useful for other practitioners? Yes Competing Interests: No competing interests were disclosed. Reviewer Expertise: Renal lithiasis and pathological calcifications I confirm that I have read this submission and believe that I have an appropriate level of expertise to confirm that it is of an acceptable scientific standard. Close READ LESS CITE CITE HOW TO CITE THIS REPORT Grases F. Reviewer Report For: Case Report: Penile necrosis associated to paraphimosis with calciphylaxis due to terminal chronic kidney disease [version 1; peer review: 2 approved] . F1000Research 2019, 8 :1133 ( https://doi.org/10.5256/f1000research.20638.r51410 ) The direct URL for this report is: https://f1000research.com/articles/8-1133/v1#referee-response-51410 NOTE: it is important to ensure the information in square brackets after the title is included in all citations of this article. COPY CITATION DETAILS Report a concern Respond or Comment COMMENT ON THIS REPORT Comments on this article Comments (0) Version 1 VERSION 1 PUBLISHED 19 Jul 2019 ADD YOUR COMMENT Comment keyboard_arrow_left keyboard_arrow_right Open Peer Review Reviewer Status info_outline Alongside their report, reviewers assign a status to the article: Approved The paper is scientifically sound in its current form and only minor, if any, improvements are suggested Approved with reservations A number of small changes, sometimes more significant revisions are required to address specific details and improve the papers academic merit. Not approved Fundamental flaws in the paper seriously undermine the findings and conclusions Reviewer Reports Invited Reviewers 1 2 Version 1 19 Jul 19 read read Felix Grases , University Institute of Health Sciences Research (IUNICS- IdisBa), University of Balearic Islands, Palma de Mallorca, Spain Munis M. Ahmed , King Edward Medical University, Lahore, Pakistan Comments on this article All Comments (0) Add a comment Sign up for content alerts Sign Up You are now signed up to receive this alert Browse by related subjects keyboard_arrow_left Back to all reports Reviewer Report 0 Views copyright © 2019 Ahmed M. This is an open access peer review report distributed under the terms of the Creative Commons Attribution License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. 06 Aug 2019 | for Version 1 Munis M. Ahmed , Internal Medicine, Mayo Hospital, King Edward Medical University, Lahore, Pakistan 0 Views copyright © 2019 Ahmed M. This is an open access peer review report distributed under the terms of the Creative Commons Attribution License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. format_quote Cite this report speaker_notes Responses (0) Approved info_outline Alongside their report, reviewers assign a status to the article: Approved The paper is scientifically sound in its current form and only minor, if any, improvements are suggested Approved with reservations A number of small changes, sometimes more significant revisions are required to address specific details and improve the papers academic merit. Not approved Fundamental flaws in the paper seriously undermine the findings and conclusions This is an interesting yet possible explanation for the outcome portrayed. Kindly work on the following fronts to improve the article: Ascertain the word count according to the journal guidelines for case reports. The introduction can be made more concise. Put the lab values in a tabular form. Remove extra headings from the case report section. In the treatment section, put "Broad-spectrum antibiotics" instead of "Broad antibiotics". Is the background of the case’s history and progression described in sufficient detail? Yes Are enough details provided of any physical examination and diagnostic tests, treatment given and outcomes? Yes Is sufficient discussion included of the importance of the findings and their relevance to future understanding of disease processes, diagnosis or treatment? Yes Is the case presented with sufficient detail to be useful for other practitioners? Yes Competing Interests No competing interests were disclosed. Reviewer Expertise Chronic Kidney Disease, Calciphylaxis. I confirm that I have read this submission and believe that I have an appropriate level of expertise to confirm that it is of an acceptable scientific standard. reply Respond to this report Responses (0) Ahmed MM. Peer Review Report For: Case Report: Penile necrosis associated to paraphimosis with calciphylaxis due to terminal chronic kidney disease [version 1; peer review: 2 approved] . F1000Research 2019, 8 :1133 ( https://doi.org/10.5256/f1000research.20638.r51408) NOTE: it is important to ensure the information in square brackets after the title is included in this citation. The direct URL for this report is: https://f1000research.com/articles/8-1133/v1#referee-response-51408 keyboard_arrow_left Back to all reports Reviewer Report 0 Views copyright © 2019 Grases F. This is an open access peer review report distributed under the terms of the Creative Commons Attribution License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. 30 Jul 2019 | for Version 1 Felix Grases , Laboratory of Renal Lithiasis Research, University Institute of Health Sciences Research (IUNICS- IdisBa), University of Balearic Islands, Palma de Mallorca, Spain 0 Views copyright © 2019 Grases F. This is an open access peer review report distributed under the terms of the Creative Commons Attribution License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. format_quote Cite this report speaker_notes Responses (0) Approved info_outline Alongside their report, reviewers assign a status to the article: Approved The paper is scientifically sound in its current form and only minor, if any, improvements are suggested Approved with reservations A number of small changes, sometimes more significant revisions are required to address specific details and improve the papers academic merit. Not approved Fundamental flaws in the paper seriously undermine the findings and conclusions The clinical case is well documented and due to its low prevalence it deserves to be indexed. The authors indicate that the patient had a favorable recovery after partial penectomy without recurrence of necrosis. What has been the follow-up time since the patient had undergone penectomy? What measures will be taken to avoid recurrence? Why the treatments for hyperphosphatemia are unavailable? Why the use of inhibitors of vascular calcification can be considered as risk factors of calciphylaxis? Is the background of the case’s history and progression described in sufficient detail? Yes Are enough details provided of any physical examination and diagnostic tests, treatment given and outcomes? Partly Is sufficient discussion included of the importance of the findings and their relevance to future understanding of disease processes, diagnosis or treatment? Partly Is the case presented with sufficient detail to be useful for other practitioners? Yes Competing Interests No competing interests were disclosed. Reviewer Expertise Renal lithiasis and pathological calcifications I confirm that I have read this submission and believe that I have an appropriate level of expertise to confirm that it is of an acceptable scientific standard. reply Respond to this report Responses (0) Grases F. Peer Review Report For: Case Report: Penile necrosis associated to paraphimosis with calciphylaxis due to terminal chronic kidney disease [version 1; peer review: 2 approved] . F1000Research 2019, 8 :1133 ( https://doi.org/10.5256/f1000research.20638.r51410) NOTE: it is important to ensure the information in square brackets after the title is included in this citation. The direct URL for this report is: https://f1000research.com/articles/8-1133/v1#referee-response-51410 Alongside their report, reviewers assign a status to the article: Approved - the paper is scientifically sound in its current form and only minor, if any, improvements are suggested Approved with reservations - A number of small changes, sometimes more significant revisions are required to address specific details and improve the papers academic merit. Not approved - fundamental flaws in the paper seriously undermine the findings and conclusions Adjust parameters to alter display View on desktop for interactive features Includes Interactive Elements View on desktop for interactive features Competing Interests Policy Provide sufficient details of any financial or non-financial competing interests to enable users to assess whether your comments might lead a reasonable person to question your impartiality. 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