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Submitted: 05 Feb 2018
Accepted: 24 Jul 2018
ePublished: 16 Oct 2018
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J Renal Inj Prev. 2019;8(2): 82-85.
doi: 10.15171/jrip.2019.16

Scopus ID: 85063813067
  Abstract View: 3699
  PDF Download: 1649

Original

Efficacy of electromagnetic lithotriptor in the treatment of renal and upper ureteral stones

Sadrollah Mehrabi 1*, Esmat Rasoli 2, Hamidreza Ghafarian Shirazi 3, Amir Mehrabi 2

1 Clinical Research Development Unit, Yasuj University of Medical Sciences, Yasuj, Iran
2 Student Research Committee, Yasuj University of Medical Sciences, Yasuj, Iran
3 Faculty of Medicine, Yasuj University of Medical Sciences, Yasuj, Iran
*Corresponding Author: *Corresponding author: Prof. Sadrollah Mehrabi, Email:, Email: sadrollahm@yahoo.com

Abstract

Introduction: The innovation of outpatient extracorporeal shock wave lithotripsy (ESWL) has created a revolution in the treatment of urinary tract stones.

Objectives: The aim of this study was to evaluate the success rate of electromagnetic lithotriptor, in the treatment of renal and upper ureteral stones.

Patients and Methods: In this study, 84 patients aged over 10 years, with renal and upper ureteral stones less than 20 mm, were considered for ESWL. Patients were randomly assigned into two groups. In all patients, using ultrasound and fluoroscopy, stone was localized and using an electromagnetic machine by standard method, ESWL was performed with electromagnetic waves. ESWL started with 12 kV and was increased to18 kV, up to a maximum of 3500 shock waves. Two weeks later a kidney, ureter, and bladder (KUB) X-ray and ultrasonography was conducted and the success rate of lithotripsy according to the crushing of stones and decrease in stone size was measured and recorded.

Results: In this study, 61.9% of patients were male. The mean age of patients was 46.62 ± 13.12 years. The mean size of stones in both groups was 13.4 ± 2.5 mm. Around 56.3% of patients had opaque stones and 43.8% had non-opaque stones. A total of 63.5% of patients received up to 3000 shock waves and 37.5% of patients received more than 3000 shock waves. Complete efficacy and clearance of renal and ureteral stones was observed in 54.8% and 59.1% of cases, respectively (P>0.05).

Conclusion: This study showed a similarity in the success and efficacy of electromagnetic lithotriptor in the treatment of renal and upper ureteral stones. Additionally, the success rate of opaque and non-opaque stones have no significant differences, while stone size and proportion of shock waves will not increase the efficacy of the electromagnetic lithotriptor in crushing the stones.


Implication for health policy/practice/research/medical education:

The innovation of outpatient extracorporeal shock wave lithotripsy (ESWL) has created a revolution in the treatment of urinary tract stones. It has been shown in different studies, that the success rate of extracorporeal lithotriptor depends on the location, size and opacity of stones and have been reported to be between 43% to 85%. This study was performed on 84 patients with renal and upper ureteral stones less than 20 mm. We found a similarity in the success rate and efficacy of an electromagnetic lithotriptor in the treatment of renal and upper ureteral stones. Additionally, no significant differences regarding opacity, size and location of stones in crushing the stones was seen.

Please cite this paper as: Mehrabi S, Rasoli E, Ghafarian Shirazi H, Mehrabi A. Efficacy of electromagnetic lithotriptor in the treatment of renal and upper ureteral stones. J Renal Inj Prev. 2019;8(2):82-85. DOI: 10.15171/jrip.2019.16.

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