Journal article
Effect of High Shock Number on Acute Complication Development After Extracorporeal Shockwave Lithotripsy
Journal of endourology, Vol.27(8), pp.115-1019
08/01/2013
DOI: 10.1089/end.2013.0025
PMCID: PMC3852342
PMID: 23537270
Abstract
Purpose:
We assessed whether high shock number is associated with higher rates of acute complication development after extracorporeal shockwave lithotripsy (SWL).
Patients and Methods:
A retrospective chart review of 372 patients who underwent 436 SWL procedures at 24 kV using a Medstone STS-T lithotripter (Medstone International Inc., Aliso Viejo, CA) was conducted. Complications occurred within 4 weeks of SWL. Treatments were split into three cohorts based on shock number (<2400, 2401–4000, and >4000). Postoperative sequelae of patients who were stone free and those with residual stone were studied separately. Chi-square tests were used to evaluate the relationship between shock number cohort and postoperative complication development.
Results:
SWL treatments recorded for each cohort were 158 (37.4%), 145 (34.4%), and 119 (28.2%), respectively. The short-term complication rate when SWL was successful was 8.3% overall. Complication rate for each cohort was 9.5% (11), 7.8% (5), and 7.2% (7), respectively. When SWL was successful, statistical analysis revealed no significant difference between complication rates and shock number cohort (
P
=0.63). Complications in patients with a residual stone occurred after 41.4% of treatments and trended upward with shock number cohort, but did not reach statistical significance (
P
=0.84).
Conclusions:
At high voltage, high shock number was not shown to cause higher rates of short-term postoperative complications, as experienced by patients, when SWL was successful or resulted in a residual stone, yet complication rates associated with residual stone burden were approximately five times as common. Forgoing a higher shock number in the presence of a residual stone may therefore increase the risks of sequelae immediately after SWL.
Details
- Title: Subtitle
- Effect of High Shock Number on Acute Complication Development After Extracorporeal Shockwave Lithotripsy
- Creators
- Miriam Hadj-Moussa - 1Section of Urology, Georgia Health Sciences University, Augusta, GeorgiaJames A Brown - 2Department of Urology, University of Iowa, Iowa City, Iowa
- Resource Type
- Journal article
- Publication Details
- Journal of endourology, Vol.27(8), pp.115-1019
- DOI
- 10.1089/end.2013.0025
- PMID
- 23537270
- PMCID
- PMC3852342
- NLM abbreviation
- J Endourol
- ISSN
- 0892-7790
- eISSN
- 1557-900X
- Publisher
- Mary Ann Liebert, Inc
- Language
- English
- Date published
- 08/01/2013
- Academic Unit
- Roy J. Carver Department of Biomedical Engineering; Urology
- Record Identifier
- 9984051517802771
Metrics
10 Record Views