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Clyde M. Williams, MD, PhD; William C. Thomas, Jr, MD
University of Florida College of Medicine Gainesville

JAMA. 1990;264(22):2868-2869.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

To the Editor.—

After extracorporeal shock wave lithotripsy (ESWL) for renal lithiasis there is a statistically significant rise in systolic and diastolic blood pressures (BPs).¹ In most patients, these increases are small and are not considered clinically significant. However, an appreciable percentage of patients develop hypertension severe enough to require treatment with antihypertensive medication, and this percentage increases with time.² For this reason the crucial statistic in any study of BP changes after ESWL is the incidence of increases in BP sufficient to warrant treatment. This information was provided by Lingeman and Kulb³ in an initial publication on the subject. They reported that 24 (8%) of 295 patients had new onset of hypertension that required pharmacologic therapy within 1 year of undergoing ESWL. This report was subsequently confirmed by another, smaller study¹ in which seven (8%) of 91 patients had new onset of hypertension that required . . . [Full Text PDF of this Article]

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