Factors influencing stone-free rate of Extracorporeal Shock Wave Lithotripsy (ESWL): a cohort study

Wagenius, MagnusLund University,Lunds universitet,Infektionsmedicin,Sektion III,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Infection Medicine (BMC),Section III,Department of Clinical Sciences, Lund,Faculty of Medicine,Helsingborg Hospital (author)

Factors influencing stone-free rate of Extracorporeal Shock Wave Lithotripsy (ESWL) : a cohort study

Funding agency:Gorthon foundation
Objective: To evaluate the success rate of Extracorporeal Shock Wave Lithotripsy (ESWL) therapy and identify relevant treatment-specific factors affecting stone-free rate (SFR) after ESWL.Materials and methods: All ESWL treatments in the years 2016-2019, in angelholm Hospital, Skane, Sweden were analysed retrospectively. Primary outcome was stone-free rate (SFR) at 3 months. Univariate logistic regression was used followed by multivariable regression. Lasso analysis was made to adjust for treatment-specific factors such as age, stone size, skin-to-stone distance (SSD), stone attenuation, number of treatments, stone location and presence of a urinary stent.Results: Factors affecting successful ESWL treatment were lower age (p < 0.001), smaller stone size and volume (both p = 0.001). SSD, stone attenuation, sex, laterality and drainage did not have an effect on SFR in this study. After the first ESWL treatment session, 46.7% of the patients were stone-free.Conclusion: Results indicate that stone size and age are the most predictive factors for ESWL outcome. Based on this, we present a simple model for prediction of SFR after ESWL, to be used when counseling patients before ESWL treatment.

Oddason, KarlDepartment of Urology Helsingborg Hospital, Helsingborg, Sweden(Swepub:lu)ka5564od (author)
Utter, MariaDepartment of Urology Helsingborg Hospital, Helsingborg, Sweden(Swepub:lu)ma3468ut (author)
Popiolek, Marcin,1981-Örebro universitet,Institutionen för medicinska vetenskaper,Department or Urology, Örebro University Hospital, Örebro, Sweden(Swepub:oru)mnpk (author)
Forsvall, AndreasLund University,Lunds universitet,Infektionsmedicin,Sektion III,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Infection Medicine (BMC),Section III,Department of Clinical Sciences, Lund,Faculty of Medicine,Helsingborg Hospital(Swepub:lu)med-aef (author)
Lundström, Karl-JohanUmeå University,Umeå universitet,Urologi och andrologi(Swepub:umu)kalu0015 (author)
Linder, AdamLund University,Lunds universitet,Infektionsmedicin,Sektion III,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Infection Medicine (BMC),Section III,Department of Clinical Sciences, Lund,Faculty of Medicine(Swepub:lu)infe-lad (author)
InfektionsmedicinSektion III (creator_code:org_t)

In:Scandinavian journal of urology: Taylor & Francis56:3, s. 237-2432168-18052168-1813

By the author/editor: Wagenius, Magnus; Oddason, Karl; Utter, Maria; Popiolek, Marcin ...; Forsvall, Andrea ...; Lundström, Karl- ...; show more...; Linder, Adam; show less...

About the subject

MEDICAL AND HEALTH SCIENCES: MEDICAL AND HEAL ...; and Clinical Medicin ...; and Urology and Neph ...

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