Professor Associado da Unidade de Pesquisa Urogenital da
Universidade do Estado de Rio de Janeiro
Urologista do Hospital da Lagoa Federal, Rio de Janeiro
Editor Associado da International Braz J Urol
The May-June 2017 issue of the International Braz J Urol presents original contributions with a lot of interesting papers in different fields: Erectile Dysfunction, Renal Stones, Prostate Cancer, Renal Cell Carcinoma, Prostate Biopsy, Ureteroscopy, Hemorragic Cystitis, Retrograde Ejaculation, Intermittent Urethral Catheterization, Ureteropelvic Junction Obstruction, Laparoscopy, Vaginal Prolapse, BPH, Vesicoureteral and Renal Anomalies. Papers came from many different countries such as Brazil, USA, UK, Turkey, Korea, France, Taiwan, Greece, China, Italy, Germany, Israel and India, and as usual the editor’s comment highlights some papers. We decided to comment the paper about a very interesting topic: The use of pelvicalyceal system models in percutaneous nephrolithotripsy surgery.
Faculdade de Medicina da Universidade de São Paulo (FMUSP),
Projeto Diretrizes – Associação Médica Brasileira (AMB),
São Paulo, SP, Brasil
Independent of who made the first Review in health literature, it is possible to state that the development of the fundamental concepts on Systematic Review and Meta-analysis is attributable to the Cochrane initiative, that signalized the need to gather scientific evidence based on the opinion of medical specialists (1). It is necessary to periodically organize a synthesis, by specialty, of all relevant randomized clinical trials, which stimulated, in 1993, the creation of collaboration, which has been at the forefront of the methodology and in the rigorous systematic review.