Recording diastolic blood pressure in pregnancy.

these patients,' but we found this not to be the case. Our findings accord with those of Dustan et al, who found that most patients with angiographic evidence of renal artery disease did not have hypertension.3 It could be argued that angiographic evidence of renal artery disease does not necessarily indicate a functionally important stenosis, hence the poor relation between angiographic findings and hypertension in our study. Nevertheless, evidence of renal artery stenosis probably indicates those patients at high risk of renal complications during treatment with angiotensin converting enzyme inhibitors. We believe that in patients with evidence ofperipheral vascular disease angiotensin converting enzyme inhibitors should be used with caution. Consideration should be given to the possibility of underlying renal artery stenosis.