Loken-Senior, syndrome
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see also : Joubert, syndrome and Nephronophthisis
(Familial juvenile nephronophthisis with ocular anomalies, Senior-Biochi syndrome, Senior-Loken syndrome)
Rare: represents 10-15 % of cases of nephronophthisis. Autosomal recessive transmission of a mutation of gene NPHP5 (3q21) encoding the IQCB protein..
Associates:
- rapidly progressing renal failure (< 10 years) : it is a high urine output renal failure due to
an inability to concentrate urine.
- retinitis pigmentosa: two forms: an early-onset form which includes a congenital Leber amaurosis with blindness at birth, and a late form which is manifested by night vision disturbances and which progresses more slowly.
Abnormality of integrin 6 in the renal tubules : imaging reveals many cysts.
Anesthetic implications:
monitor renal function; check for anemia and/or hemodialysis.
References:
- Turagal MK, Velagapudi P, Holley JL.
Senior-Loken and other renal-retinal syndromes : a case report and review.
Int J Nephrol Urol 2009; 1: 143-52.
Updated: January 2019