Endocrine Abstracts

Introduction: Prevalence of prolactinoma is approximately 10/100,000 (men) and 30/100,000 (women) and dopamine agonists remain pharmacological treatment of choice. Cabergoline, an effective dopamine agonist, is preferred due to better tolerability withhigher efficacy in lowering prolactin and reducing tumour size in comparison with bromocriptine. Digital vasospasm, known adverse effect of Bromocriptineis mediated by activation of α1 adrenergic receptors. ...

Arginine vasopressin resistance (AVP-R) (previously termed nephrogenic diabetes insipidus) is well known to be associated with lithium treatment. However, cases are usually mild and patients can almost always compensate for their polyuria with excessive fluid intake. We present the case of a moribund patient who required intensive care admission secondary to AVP-R, developing hypernatraemia to 183mmol/l and serum osmolality of 394mmol/kg. A 68 year old gentleman, on lithium tr...