نتایج جستجو برای: petrosal sinus
تعداد نتایج: 42313 فیلتر نتایج به سال:
Arginine vasopressin (AVP) acts synergistically with corticotropin-releasing hormone (CRH) to stimulate ACTH release from the anterior pituitary. In a previous study of bilateral simultaneous inferior petrosal sinus (IPS) sampling in healthy human subjects, we observed lateralized ACTH secretion, suggesting lateralized secretion of an ACTH-regulating hypothalamic factor. To investigate this pos...
Differentiating between Cushing's disease of pituitary origin and ectopic ACTH syndrome of extra-pituitary origin remains a major challenge to the clinician because of limitations in the diagnostic accuracy of the high-dose dexamethasone suppression test. Routine use of inferior petrosal sinus sampling (IPSS) is therefore advocated by some authors for these patients. We present our preliminary ...
OBJECTIVE To describe and analyze technique for bilateral catheterization of inferior petrosal sinus in our service, discussing the difficulties and success rates found. SUBJECTS AND METHODS Fourteen patients with suspected Cushing's syndrome underwent bilateral inferior petrosal sinuses (IPS) catheterization between 2009 and 2012. The technique for catheterization and for hormone analysis we...
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