Hypertension after Extracorporeal Shock Wave Lithotripsy: A False Alarm

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Abstract
Among 200 normotensive patients who had a solitary stone fragmented by extracorporeal shock wave lithotripsy (ESWL) with 1100 to 1900 (mean 1380) shock waves at 18 to 22 kV on a Dornier HM3 lithotripter, only three had hypertension at follow-up, a figure that can be accounted for by the expected rate of new onset of hypertension in persons of the same age. Moreover, in 100 other patients having two ESWL sessions, the basal diastolic pressure did not differ significantly between the two sessions, and in 10 patients 25 to 41 years old, plasma renin activity was no higher 60, 120, and 240 minutes after receipt of 1000 to 1500 shock waves than before ESWL. At present, no relation between ESWL and hypertension can be postulated, and warning patients of any such danger is unjustified.

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