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Computed Tomography-Based Novel Prediction Model for the Outcome of Shockwave Lithotripsy in Proximal Ureteral Stones

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dc.contributor.author윤철용-
dc.contributor.author최영득-
dc.date.accessioned2017-10-26T07:26:59Z-
dc.date.available2017-10-26T07:26:59Z-
dc.date.issued2016-
dc.identifier.issn0892-7790-
dc.identifier.urihttps://ir.ymlib.yonsei.ac.kr/handle/22282913/152043-
dc.description.abstractINTRODUCTION AND OBJECTIVES: Computed tomography (CT) is one of the most commonly used diagnostic modalities for urinary stone disease. In this study we developed a CT and clinical parameter-based prediction model for shockwave lithotripsy (SWL) outcome in proximal ureteral stones. MATERIALS AND METHODS: Data from 223 patients with single proximal ureteral stones treated with SWL between January 2009 and January 2015 were reviewed retrospectively. Clinical parameters including age, sex, body weight, and body mass index (BMI) were analyzed in combination with stone-related CT parameters (stone diameter, height, volume, location, Hounsfield units [HU], stone-to-skin distance [SSD]), and secondary signs (hydronephrosis, perinephric edema, and rim sign). Based on the cutoff values determined by c-statistics, a scoring system for the prediction of SWL outcome was developed. RESULTS: The success rate was 65.9% (147/223), and in a univariate analysis body weight, BMI, SSD (vertical, horizontal), HU, stone diameter, height, volume, and all secondary signs were significantly associated with the success of SWL. However, on multivariate analysis only BMI (odds ratio [OR]?=?1.322, confidence interval [CI] 1.156, 1.512, p?=?0.00), stone diameter (OR?=?1.397, CI 1.259, 1.551, p?=?0.00), and perinephric edema (grade 0-1 vs 3-4, OR?=?2.831, CI 1.032, 7.764, p?=?0.043) were independent predictors of SWL success. The prediction model based on the logistic regression analysis was as follows: SWL success?=?1/[1?+?exp (-10.165?+?0.279?×?[BMI]?+?0.334?×?[diameter]?+?1.040 [perinephric edema])], having an area under the curve of 0.881. In the prediction model based on these parameters, scores of 0, 1, 2, and 3 correlated with SWL success rates of 98.5%, 65.7%, 31.4%, and 0%, respectively. CONCLUSIONS: BMI, stone diameter, and perinephric edema were independent predictors of SWL outcome and a prediction model based on these parameters will facilitate decision-making for SWL in proximal ureteral stones.-
dc.description.statementOfResponsibilityrestriction-
dc.languageEnglish-
dc.publisherMary Ann Liebert-
dc.relation.isPartOfJOURNAL OF ENDOUROLOGY-
dc.rightsCC BY-NC-ND 2.0 KR-
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/2.0/kr/-
dc.subject.MESHAdult-
dc.subject.MESHAged-
dc.subject.MESHBody Mass Index-
dc.subject.MESHBody Weight-
dc.subject.MESHClinical Decision-Making-
dc.subject.MESHDecision Support Techniques-
dc.subject.MESHEdema/diagnostic imaging-
dc.subject.MESHEdema/etiology-
dc.subject.MESHFemale-
dc.subject.MESHHumans-
dc.subject.MESHHydronephrosis/diagnostic imaging-
dc.subject.MESHHydronephrosis/etiology-
dc.subject.MESHLithotripsy/methods*-
dc.subject.MESHLogistic Models-
dc.subject.MESHMale-
dc.subject.MESHMiddle Aged-
dc.subject.MESHMultivariate Analysis-
dc.subject.MESHRetrospective Studies-
dc.subject.MESHTomography, Spiral Computed-
dc.subject.MESHTomography, X-Ray Computed-
dc.subject.MESHTreatment Outcome-
dc.subject.MESHUreteral Calculi/complications-
dc.subject.MESHUreteral Calculi/diagnostic imaging-
dc.subject.MESHUreteral Calculi/therapy*-
dc.titleComputed Tomography-Based Novel Prediction Model for the Outcome of Shockwave Lithotripsy in Proximal Ureteral Stones-
dc.typeArticle-
dc.publisher.locationUnited States-
dc.contributor.collegeCollege of Medicine-
dc.contributor.departmentDept. of Urology-
dc.contributor.googleauthorPark Hong Seok-
dc.contributor.googleauthorGong Mi Kyung-
dc.contributor.googleauthorYoon Cheol Yong-
dc.contributor.googleauthorMoon Du Geon-
dc.contributor.googleauthorCheon Jun-
dc.contributor.googleauthorChoi Young Deuk-
dc.identifier.doi10.1089/end.2016.0056-
dc.contributor.localIdA04111-
dc.contributor.localIdA04988-
dc.relation.journalcodeJ01394-
dc.identifier.eissn1557-900X-
dc.identifier.pmid27042952-
dc.identifier.urlhttp://online.liebertpub.com/doi/10.1089/end.2016.0056-
dc.contributor.alternativeNameYoon, Cheol Yong-
dc.contributor.alternativeNameChoi, Young Deuk-
dc.contributor.affiliatedAuthorChoi, Young Deuk-
dc.contributor.affiliatedAuthorYoon, Cheol Yong-
dc.citation.volume30-
dc.citation.number7-
dc.citation.startPage810-
dc.citation.endPage816-
dc.identifier.bibliographicCitationJOURNAL OF ENDOUROLOGY, Vol.30(7) : 810-816, 2016-
dc.date.modified2017-10-24-
dc.identifier.rimsid46823-
dc.type.rimsART-
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Urology (비뇨의학교실) > 1. Journal Papers

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