Sobre mí

Médico Cirujano con Especialidad en Urología de la Universidad de Chile (UCH), con Maestría en Ciencias Médicas, estudios de Subespecialidades en el extranjero, graduado como Urólogo Oncólogo de la Universidad de Chicago y en Cirugía Mínimamente Invasiva de Urología Oncológica.

Publicaciones y conferencias

Adult Celiac Disease: Clinical experience. Revista Médica de Chile. 2005
Cohen A, Ledezma R, Mhoon E, Zagaja G. Bloody otorrhea after Robotically Assisted Laparoscopic Prostatectomy. Can J Urol. 2015 Jun;22(3):7834-5. PMID: 26068636
The expression of syndecan-1 and -2 is associated with Gleason score and epithelial-mesenchymal transition markers, E-cadherin and -catenin in Prostate Cancer. Urologic Oncology-Seminars and Original Investigations. 2010
Sepúlveda F, Aliaga A, Fleck D, Fernández M, Mercado A, Vilches R, Moya F, Ledezma R, Reyes D, Marchant F. Hemostatic agents for access tract in tubeless Percutaneous Nephrolithotomy: Is it worth ?. Urol Ann 2016; 8 (2): 208-12. PMID: 27141194
Ledezma R, Cifuentes F, Ledezma X, Vergara J, Gallegos I, Morales B, Huidobro C, Castellón E, Contreras H. Alterated expression of Syn decans 1 and 2 predicts biochemical failure in localized Prostate Cancer. XX Congreso de la Asociación Latinoamericana de Investigadores en Reproducción Humana. Buenos Aires, Argentina. 2007
Hemostatic agents for access tract in tubeless Percutaneous Nephrolithotomy: Is it worth. Urology Annals. 2016
Ledezma R, Cifuentes F, Ledezma X, Vergara J, Gallegos I, Huidobro C, Castellón E, Contreras H. Epithelial - mesenchymal transition markers in Prostate Cancer. XX Congreso de la Asociación Latinoamericana de Investigadores en Reproducción Humana. Buenos Aires, Argentina. 2007
Ledezma R, Negrón E, Steinberg Z, Shalhav A, Paner G, Eggener S. Clinicopathologic outcomes of Type 1 and Type 2 papillary Renal cell Carcinoma. AUA Annual Meeting. Orlando, USA. 2014
Mancilla C, Madrid AM, Valenzuela J, Morales A, Hurtado C, Smok G, Ledezma R, Castillo I, Rivas M, Brahm J. Adult Celiac Disease: Clinical experience. Revista Médica de Chile. 2005; 133(11): 1317-1321. PMID: 16446855
Altered expression patterns of syndecan-1 and -2 predict biochemical recurrence in Prostate Cancer. Asian Journal of Andrology. 2011
Contreras HR, Ledezma RA, Vergara J, Cifuentes F, Barra C, Cabello P, Gallegos I, Morales B, Huidobro C, Castellón EA. The expression of syndecan-1 and -2 is associated with Gleason score and epithelial-mesenchymal transition markers, E-cadherin and beta-catenin in Prostate Cancer. Urol Oncol. 2010; 28 (5): 534-40. PMID: 19450993
Ledezma RA, Negron E, Razmaria AA, Dangle P, Eggener SE, Shalhav AL, Zagaja GP. Robotic-assisted Pelvic Lymph node dissection for Prostate Cancer: Frequency of nodal Metastases and Oncological Outcomes. World J Urol. 2015; 33 (11): 1689-94. PMID: 25701128
Ledezma RA, Negron E, Paner GP, Rjepaj C, Lascano D, Haseebuddin M, Dangle P, Shalhav AL, Crist H, Raman JD , De Castro GJ, Harik L, Paroder M, Uzzo RG, Kutikov A, Eggener SE. Clinically Localized Type 1 and 2 Papillary Renal Cell Carcinoma Have Similar Survival Outcomes Following Surgery. World J Urol. 2016; 34 (5): 687-93. PMID: 26407582
Cardemil G, Fernández E, Riffo P, Reyes D, Ledezma R, Mira M, Morales C, Salguero. Sclerosing hemangioma presenting as a solitary lung Nodule. Report of one case. Revista Médica de Chile. 2004; 132(7): 853-856. PMID: 15379333
Immediate postoperative morbidity in patients with indwelling double-J stent versus overnight-externalized Ureteral Catheter after tubeless Percutaneous Nephrolithotomy: A prospective, randomized study. Urolithiasis. 2013
Vilches RM, Aliaga A, Reyes D, Sepúlveda F, Mercado A, Moya F, Ledezma R, Hidalgo JP, Olmedo T, Marchant F. Comparison between retrograde intrarenal surgery and extracorporeal shock wave lithotripsy in the treatment of lower pole kidney stones up to 15mm. Prospective randomized study. Actas Urol Esp. 2015; 39 (4):236-42
Mercado A, Recabal P, Fleck D, Ledezma R, Moya F, Sepúlveda F, Vilches R, Reyes D, Marchant F. “Nefrolitectomía Percutánea tubeless con Catéter Pigtail versus Catéter Ureteral externalizado por una noche: Estudio comparativo, prospectivo y randomizado”. Revista Chilena de Urología. 2012; 77(1): 31-36
Application of ISUP Grading in a Series of Papillary Renal Cell Carcinoma Cases from a Tertiary Institution. Laboratory Investigation. 2016
Mercado A, Fernández MI, Recabal P, Fleck D, Ledezma R, Moya F, Sepúlveda F, Vilches R, Reyes D, Marchant F. Immediate postoperative morbidity in patients with indwelling double-J stent versus overnight-externalized ureteral catheter after tubeless Percutaneous Nephrolithotomy: A prospective, randomized study. Urolithiasis. 2013; 41(3): 253-6
Olmedo T, Ledezma R. Actualidades en el tratamiento del Cáncer Prostático localizado. Revista Chilena de Urología. 2010; 75 (1): 67-68
Bermudez H, Ledezma R, Storme O, Marchant F, Hidalgo J, Díaz J, Palma C, Lyng R. Transvaginally Assisted Laparoscopic Nephrectomy: Initial experience and short term outcomes. AUA Annual Meeting. San Francisco, USA. 2010
Cabezas J, Huidobro C, Ledezma R, Acevedo C. High - energy transurethral microwave thermotherapy for benign Prostatic Hyperplasia Treatment. Outcomes of 1 year follow - up. XXVII Congreso Chileno de Urología. Pucón, Chile. 2004
Ossandon E, Storme O, Ledezma R, Marchant F, Palma C, Recabal P. Metabolic study results of 54 patients with high risk of recurrent Urolitiasis. Actas Urológicas Españolas. 2009; 33(4): 429-32. PubMed; PMID: 19579895
Transvaginal Assisted Laparoscopic Nephectomy: Initial Experience. Journal of Endourology. 2010
Mancilla C, Hurtado C, Tobar E, Orellana I, Pineda P, Castillo I, Ledezma R, Berger Z. Pancreatic Exocrine function in Diabetes Mellitus. Determination of fecal elastase. Revista Médica de Chile. 2006; 134(4): 407-414. PMID: 16758074
Ossandon E, Olmedo T, Ledezma R, Palma C, Olea M, Solíz E, Díaz P, Acevedo C, Frías J, Reyes D, Riffo R. Litotripsia Extracorpórea a 60 y 120 golpes por minuto: Estudio prospectivo randomizado. Revista Chilena de Urología. 2007; 72 (3): 296-300. LILACS ID: 545991
Fulla J, Mercado A, Ledezma R, Contreras H. Expresión de Snail 1 en la progresión maligna del Cáncer de Próstata. XXXVI Foro Latinoamericano de Residentes. Congreso Mexicano de Urología. Guanajuato, México. 2012
Ledezma R, Akki A, Shalhav A, Eggener S, Paner G. The Prognostic Impact of the New ISUP Grading System in Papillary Renal Cell Carcinoma. AUA Annual Meeting. San Diego USA. 2016
Ossandon E, Ledezma R, Cabezas J, Aranda W. Multivariate analysis of biochemical relapse predictors in the follow - up of patients with clinically localized disease treated by retropubic radical prostatectomy
Alfaro C, Albertz N, Barra C, Cifuentes F, Ledezma R, Vergara J, Contreras H, Castellón E. Regional distribution of androgen receptor in human epididymis. XVI Reunión anual de la Sociedad Chilena de Reproducción y Desarrollo. Reñaca, Chile. 2005
Comparison between retrograde Intrarenal Surgery and Extracorporeal shock wave lithotripsy in the treatment of lower pole kidney stones up to 15 mm. Prospective, randomized study. Actas Urológicas Españolas. 2015
Ledezma R, Cifuentes F, Gallegos I, Fullá J, Ossandon E, Castellon EA, Contreras HR. Altered expression patterns of syndecan-1 and -2 predict biochemical recurrence in Prostate Cancer. Asian J Androl. 2011; 13(3):476-80. PMID: 21317913
Ossandon E, Ledezma R, Palma C, Marchant F. Estudio metabólico en pacientes con Urolitiasis de alto riesgo de recurrencia. Mercado A, Sánchez C, Fulla J, Ledezma R, Acevedo C, Cabezas J, Huidobro C, Contreras H. Expresión y actividad de proteínas de multirresistencia a drogas (MDR) en líneas celulares de Cáncer de Próstata. Revista Chilena de Urología. 2010; 75 (1): 25-30. LILACS ID 574233
Contreras H, Vergara J, Barra C, Alfaro C, Albertz N, Díaz C, Ledezma R, Cifuentes F, Clementi M, Benítez D, Sánchez C, Huidobro C, Castellon E. Cell adhesion molecules detection in Prostate cell lines and human prostatic tissue. XIX Congreso de la Asociación Latinoamericana de Investigadores en Reproducción Humana. Cartagena de Indias, Colombia. 2005
Cifuentes F, Ledezma R, Vergara J, Gallegos I, Morales B, Huidobro C, Castellón E, Contreras H. Cell adhesion molecules expression in primary Prostate Cancer and Metastatic Lymph Nodes. XX Congreso de la Asociación Latinoamericana de Investigadores en Reproducción Humana. Buenos Aires, Argentina. 2007
Pancreatic Exocrine function in Diabetes Mellitus. Determination of fecal elastase. Revista Médica de Chile. 2006