Impact of Lower Pole Anatomy on Stone Clearance After Shock Wave Lithotripsy

This study retrospectively analyzed patients treated with shock wave ithotripsy (SWL) for lower calyceal stones, to determine the influence of the lower pole anatomy and stone size in predicting the clearance of fragments. Between June 2000 and March 2002, we reviewed excretory urography (IVU) of 59...

Full description

Bibliographic Details
Main Authors: Yung-Shun Juan, Jung-Tsung Shen, Chii-Jye Wang
Format: Article
Language:English
Published: Wiley 2005-08-01
Series:Kaohsiung Journal of Medical Sciences
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1607551X09701342
_version_ 1811195236807868416
author Yung-Shun Juan
Jung-Tsung Shen
Chii-Jye Wang
author_facet Yung-Shun Juan
Jung-Tsung Shen
Chii-Jye Wang
author_sort Yung-Shun Juan
collection DOAJ
description This study retrospectively analyzed patients treated with shock wave ithotripsy (SWL) for lower calyceal stones, to determine the influence of the lower pole anatomy and stone size in predicting the clearance of fragments. Between June 2000 and March 2002, we reviewed excretory urography (IVU) of 59 patients with isolated lower pole stones treated with SWL. A total of 44 men and 15 women, with an age ranging between 23 and 78 years (mean, 55 years), were included in the study. The patients were divided into two groups, either a stone-free group or residual-stone group. After SWL, overall stone rate was 57.6%, and clearance for stones less than 10 mm in diameter was 64.5%, whereas clearance was 50% for stones between 10 and 20 mm in diameter. Intrarenal anatomy on IVU, such as infundibular width and infundibulopelvi-ureteric angle showed no significant difference between the stone-free and residual-stone groups. Our analysis showed that three significant variables were relevant to stone clearance: infundibular length, stone size and stone burden. We conclude that SWL is the best treatment for lower pole kidney stones 10 mm or less in diameter, showing lower complication and acceptable stone-free rates.
first_indexed 2024-04-12T00:38:50Z
format Article
id doaj.art-cf848afbe74b4aecb27d5959aeb219a6
institution Directory Open Access Journal
issn 1607-551X
language English
last_indexed 2024-04-12T00:38:50Z
publishDate 2005-08-01
publisher Wiley
record_format Article
series Kaohsiung Journal of Medical Sciences
spelling doaj.art-cf848afbe74b4aecb27d5959aeb219a62022-12-22T03:55:04ZengWileyKaohsiung Journal of Medical Sciences1607-551X2005-08-0121835836410.1016/S1607-551X(09)70134-2Impact of Lower Pole Anatomy on Stone Clearance After Shock Wave LithotripsyYung-Shun JuanJung-Tsung ShenChii-Jye WangThis study retrospectively analyzed patients treated with shock wave ithotripsy (SWL) for lower calyceal stones, to determine the influence of the lower pole anatomy and stone size in predicting the clearance of fragments. Between June 2000 and March 2002, we reviewed excretory urography (IVU) of 59 patients with isolated lower pole stones treated with SWL. A total of 44 men and 15 women, with an age ranging between 23 and 78 years (mean, 55 years), were included in the study. The patients were divided into two groups, either a stone-free group or residual-stone group. After SWL, overall stone rate was 57.6%, and clearance for stones less than 10 mm in diameter was 64.5%, whereas clearance was 50% for stones between 10 and 20 mm in diameter. Intrarenal anatomy on IVU, such as infundibular width and infundibulopelvi-ureteric angle showed no significant difference between the stone-free and residual-stone groups. Our analysis showed that three significant variables were relevant to stone clearance: infundibular length, stone size and stone burden. We conclude that SWL is the best treatment for lower pole kidney stones 10 mm or less in diameter, showing lower complication and acceptable stone-free rates.http://www.sciencedirect.com/science/article/pii/S1607551X09701342stonekidneyanatomyexcretory urography
spellingShingle Yung-Shun Juan
Jung-Tsung Shen
Chii-Jye Wang
Impact of Lower Pole Anatomy on Stone Clearance After Shock Wave Lithotripsy
Kaohsiung Journal of Medical Sciences
stone
kidney
anatomy
excretory urography
title Impact of Lower Pole Anatomy on Stone Clearance After Shock Wave Lithotripsy
title_full Impact of Lower Pole Anatomy on Stone Clearance After Shock Wave Lithotripsy
title_fullStr Impact of Lower Pole Anatomy on Stone Clearance After Shock Wave Lithotripsy
title_full_unstemmed Impact of Lower Pole Anatomy on Stone Clearance After Shock Wave Lithotripsy
title_short Impact of Lower Pole Anatomy on Stone Clearance After Shock Wave Lithotripsy
title_sort impact of lower pole anatomy on stone clearance after shock wave lithotripsy
topic stone
kidney
anatomy
excretory urography
url http://www.sciencedirect.com/science/article/pii/S1607551X09701342
work_keys_str_mv AT yungshunjuan impactoflowerpoleanatomyonstoneclearanceaftershockwavelithotripsy
AT jungtsungshen impactoflowerpoleanatomyonstoneclearanceaftershockwavelithotripsy
AT chiijyewang impactoflowerpoleanatomyonstoneclearanceaftershockwavelithotripsy