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The head impulse test is a simple clinical test comprising high acceleration head rotation. In the presence of a severe unilateral vestibular weakness the normal vestibulo-ocular reflex is replaced by a misalignment of the eye followed by a series of corrective saccades which are evident to the examiner. Previous reports have shown the high sensitivity of(More)
Urotensin II (UTN) is a cyclic eleven amino acid peptide that can induce endothelial independent vasoconstriction and endothelial dependent vasodilatation in human vasculature. The cyclic part of the peptide is composed of six amino acids. Similarly, Urotensin Related Peptide (URP) is only eight amino acids long but shares the identical ring structure to(More)
BACKGROUND Dialysis in elderly patients (>80-years-old) carries a poor prognosis, but little is known about the most effective vascular access method in this age group. An arteriovenous fistula (AVF) is both time-consuming and initially expensive, requiring surgical insertion. A central venous catheter (CVC) is initially a cheaper alternative, but carries a(More)
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