The influence of renal and cardiovascular abnormalities on blood pressure in Turner syndrome

Clinical Endocrinology
N C NathwaniP C Hindmarsh

Abstract

Patients with Turner syndrome (TS) are at an increased risk of morbidity and mortality from cardiovascular disease. This study was undertaken to establish the prevalence of hypertension in patients with TS and to establish to what extent cardiovascular or renal abnormalities contribute to the measured blood pressure. 62 patients with TS, age 5.4-22.4 years, had 24 h-ABPM (ambulatory blood pressure monitoring), echocardiography, renal imaging and measurement of recumbent plasma renin activity (PRA). Blood pressure was compared with population standards. 21% of the TS study population had mean systolic and 17% mean diastolic 24 h-ABPM measurements above the 95th percentile for age and sex (i.e. mild hypertension). Borderline blood pressure (i.e. 90th to 95th percentile) was found in another 17% of the patients. 57% of the patients had a blunted (i.e. less than 10%) fall in the night-time blood pressure. 24% of the patients had a detectable cardiac abnormality, 42% a detectable renal abnormality and 52% were found to have raised plasma renin activity. The presence of a cardiac or renal abnormality had no significant effect on blood pressure. Blood pressure of patients on growth and/or pubertal therapy was not different from those ...Continue Reading

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