Endocrine Abstracts

Context: Fluid restriction (FR) is recommended as first line therapy for SIAD by both the European1 and the American guidelines2 for management of SIAD. Not all patients respond to FR however, and the American guidelines have identified clinical predictors of failure to respond to FR. These include 1.Urine osmolality (UOsm) >500 mOsm/Kg 2. Furst formula (ratio UNa+UK/pNa) > 1, and 3. 24 hour-urine volume<1500 mlObjective...

Introduction: Hyperaldosteronism can induce elevated parathyroid hormone (PTH) levels, presumably by increasing calciuria. Furthermore, PTH stimulates aldosterone secretion in vitro, and increases angiotensin–II-stimulated aldosterone release. In a patient with hyperaldosteronism and hyperparathyroidism, PTH receptors were detected in aldosteronoma tissue. We present three patients sent to an endocrinologist for treatment/follow-up of primary hyperparathyroidism,...

Introduction: Hyponatremia (HN) is associated with worse clinical outcomes, and longer hospital lengths-of-stay than seen in eunatremic patients. The Syndrome of Inappropriate Antidiuresis (SIAD) is the most common cause of hyponatremia in hospitalization. We studied the relationship between correction of sustained SIAD-induced hyponatremia and visits to the Emergency Room (ERv) as well as hospital admissions (HA) in a case series.Methods: Retrospective,...

Introduction: In a majority of Spanish hospitals, serum sodium levels (SNa) are determined by indirect electrode methodology (sodium in the liquid fraction of serum) divided by the total serum volume (mmol/l). To avoid over/underestimating SNa, a formula can be applied: SNa corrected for total proteins (TP)=SNa×93 divided by (99.1−(0.7×TP)). Hypoproteinaemia is frequent in patients receiving parenteral nutrition (PN), and is probably related to surgery, acute d...

Introduction: Hyponatremia(HN) is frequent in the emergency room(ER), yet often ignored, or poorly studied/managed. Our objective was to determine the characteristics of patients presenting HN at the ER of a general hospital.Methods: Retrospective analysis of all 347 patients(AllP) presenting/developing non-translocational HN (serum sodium (SNa)<135 mmol/l) the first 48 h at the Hospital Clinico San Carlos ER in August 2012. Volemia was determined by...

Introduction: Hyponatremia is the most frequent electrolyte alteration in hospitalized patients, and is associated with increased morbimortality. Hyponatremia in patients receiving parenteral nutrition (PN) is generally overlooked. Our objective was to classify the types of hyponatremia observed in patients on PN, and to describe the prescribed treatments and evolution.Material and methods: We undertook a prospective study of all patients on medical ward...