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The Journal of urology · Aug 1988
Simulation of ventilatory-induced stone movement and its effect on stone fracture during extracorporeal shock wave lithotripsy.
- J P Whelan, N Gravenstein, J L Welch, S Lampotang, R C Newman, and B Finlayson.
- Department of Surgery, University of Florida College of Medicine, Gainesville.
- J. Urol. 1988 Aug 1;140(2):405-7.
AbstractBecause ventilation influences renal movement, we investigated the effect of stone motion on the efficiency of extracorporeal shock-wave lithotripsy (ESWL). Comparisons of the rates of fragmentation of an experimental model of renal calculi were made between simulated high-frequency jet ventilation at 100 breaths/min. with four-mm. stone movement as measured from the fluoroscope screen, conventional mechanical ventilation at 10 breaths/min. with 32-mm. stone movement as measured from the fluoroscope screen, and a static control. Fragmentation did not differ significantly between high-frequency jet ventilation and no ventilation (static control), but was significantly greater with high-frequency jet ventilation than with conventional ventilation.
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