Assessment of flexible ureteroscopy residual fragments

• Grant number: 14/05130-2
• Support Opportunities: Regular Research Grants
• Start date: August 01, 2014
• End date: July 31, 2017
• Field of knowledge: Health Sciences - Medicine - Surgery
• Principal Investigator: Alexandre Danilovic
• Grantee: Alexandre Danilovic
• Host Institution: Faculdade de Medicina (FM). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Associated researchers: Eduardo Mazzucchi

Abstract

Residual fragments of urinary calculi after flexible ureteroscopy (URF) can cause symptoms and additional surgeries. The assessment of residual fragments by imaging is not standardized. Computed tomography (CT) is the best way for evaluation of urinary stones, however, ionizing radiation from CT is deleterious. The aim of this study is to define which patients may avoid CT for evaluation of residual fragments after URF. 115 patients with > 18 years old undergoing URF for kidney stone < 20 mm or < 15 mm in the lower calyx diagnosed by TC will be studied. The clinical evaluation of patients will be held by the same urologist in pre-operative consultation, 7 days after the procedure, 30 days after the procedure and 100 days after the procedure. The assessment of residual fragments will be made through TC, ultrasound and KUB 90 days after the procedure. The image methods for residual fragments assessment will be compared by Cochran Test and prediction of parameters to avoid CT will be made by multiple logistic regression, using IPSS 16.0, with significant level of 5%. (AU)

Scientific publications

(7)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

DANILOVIC, ALEXANDRE; MIRANDA TORRICELLI, FABIO CESAR; MARCHINI, GIOVANNI SCALA; BATAGELLO, CARLOS; VICENTINI, FABIO CARVALHO; TRAXER, OLIVIER; SROUGI, MIGUEL; NAHAS, WILLIAM C.; MAZZUCCHI, EDUARDO. Residual Stone Fragments After Percutaneous Nephrolithotomy: Shockwave Lithotripsy vs Retrograde Intrarenal Surgery. JOURNAL OF ENDOUROLOGY, v. 35, n. 5, JAN 2021. (14/05130-2)

DANILOVIC, ALEXANDRE; TORRICELLI, FABIO CESAR MIRANDA; MARCHINI, GIOVANNI SCALA; BATAGELLO, CARLOS; VICENTINI, FABIO CARVALHO; TRAXER, OLIVIER; SROUGI, MIGUEL; NAHAS, WILLIAM C.; MAZZUCCHI, EDUARDO. Prospective Evaluation of Bilateral Retrograde Intrarenal Surgery: Is It Really Safe?. JOURNAL OF ENDOUROLOGY, v. 35, n. 1, SEP 2020. (14/05130-2)

DANILOVIC, ALEXANDRE; TORRICELLI, FABIO; MARCHINI, GIOVANNI; BATAGELLO, CARLOS; VICENTINI, FABIO; TRAXER, OLIVIER; SROUGI, MIGUEL; NAHAS, WILLIAM; MAZZUCCHI, EDUARDO. RESIDUAL STONE FRAGMENTS AFTER PERCUTANEOUS NEPHROLITHOTOMY: SHOCKWAVE LITHOTRIPSY VS. RETROGRADE INTRARENAL SURGERY. JOURNAL OF UROLOGY, v. 206, p. 1-pg., 2021-09-01. (14/05130-2)

DANILOVIC, ALEXANDRE; CAVALANTI, ANDREA; ROCHA, BRUNO ARAGAO; TRAXER, OLIVIER; MIRANDA TORRICELLI, FABIO CESAR; MARCHINI, GIOVANNI SCALA; MAZZUCCHI, EDUARDO; SROUGI, MIGUEL. Assessment of Residual Stone Fragments After Retrograde Intrarenal Surgery. JOURNAL OF ENDOUROLOGY, v. 32, n. 12, p. 1108-1113, DEC 2018. (14/05130-2)

DANILOVIC, ALEXANDRE; ROCHA, BRUNO ARAGAO; TORRICELLI, FABIO CESAR MIRANDA; MARCHINI, GIOVANNI SCALA; BATAGELLO, CARLOS; VICENTINI, FABIO CARVALHO; TRAXER, OLIVIER; VIANA, PUBLIO CESAR CAVALCANTE; SROUGI, MIGUEL; NAHAS, WILLIAM C.; et al. Size is Not Everything That Matters: Preoperative CT Predictors of Stone Free After RIRS. UROLOGY, v. 132, p. 63-68, OCT 2019. (14/05130-2)

DANILOVIC, ALEXANDRE; ROCHA, BRUNO ARAGAO; MARCHINI, GIOVANNI SCALA; TRAXER, OLIVIER; BATAGELLO, CARLOS; VICENTINI, FABIO CARVALHO; MIRANDA TORRICELLI, FABIO CESAR; SROUGI, MIGUEL; NAHAS, WILLIAM CARLOS; MAZZUCCHI, EDUARDO. Computed tomography window affects kidney stones measurements. INTERNATIONAL BRAZ J UROL, v. 45, n. 5, p. 948-955, SEP-OCT 2019. (14/05130-2)

DANILOVIC, ALEXANDRE; TORRICELLI, FABIO; MARCHINI, GIOVANNI; BATAGELLO, CARLOS; VICENTINI, FABIO; TRAXER, OLIVIER; SROUGI, MIGUEL; NAHAS, WILLIAM; MAZZUCCHI, EDUARDO. PROSPECTIVE EVALUATION OF BILATERAL RIRS: IS IT REALLY SAFE?. JOURNAL OF UROLOGY, v. 203, p. 2-pg., 2020-04-01. (14/05130-2)