Abstract:
:Riley Day syndrome, commonly referred to as familial dysautonomia (FD), is a genetic disease with extremely labile blood pressure owing to baroreflex deafferenation. Chronic renal disease is very frequent in these patients and was attributed to recurrent arterial hypotension and renal hypoperfusion. Aggressive treatment of hypotension, however, has not reduced its prevalence. We evaluated the frequency of kidney malformations as well as the impact of hypertension, hypotension and blood pressure variability on the severity of renal impairment. We also investigated the effect of fludrocortisone treatment on the progression of renal disease. Patients with FD appeared to have an increased incidence of hydronephrosis/reflux and patterning defects. Patients <4 years old had hypertension and normal estimated glomerular filtration rates (eGFR). Patients with more severe hypertension and greater variability in their blood pressure had worse renal function (both, P<0.01). In contrast, there was no relationship between eGFR and the lowest blood pressure recorded during upright tilt. The progression of renal disease was faster in patients receiving fludrocortisone (P<0.02). Hypertension precedes kidney disease in these patients. Moreover, increased blood pressure variability as well as mineralocorticoid treatment accelerate the progression of renal disease. No association was found between hypotension and renal disease in patients with FD.
journal_name
J Hum Hypertensjournal_title
Journal of human hypertensionauthors
Norcliffe-Kaufmann L,Axelrod FB,Kaufmann Hdoi
10.1038/jhh.2011.107subject
Has Abstractpub_date
2013-01-01 00:00:00pages
51-5issue
1eissn
0950-9240issn
1476-5527pii
jhh2011107journal_volume
27pub_type
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