Active clinical trials for "Hyponatremia"

The purpose of this study is to create an institutional and population-based registry of Hyponatremia with a prospective survey based on epidemiological data, risk factors, diagnosis, prognosis, treatment, monitoring and survival. This study will also describe the occurrence of hyponatremia in the population of HIBA in the Central Hospital, as well as the characteristics of clinical presentation, evolution and predisposing factors of hyponatremia.

To evaluate the overall safety and continued efficacy of oral lixivaptan capsules in subjects with euvolemic and hypervolemic hyponatremia

Colonoscopy is a useful tool used in modern medicine and it is increasingly being employed for both diagnostic and therapeutic purposes. (Polyethelene glycol)PEG is very often used for bowel preparation.There are some cases of hyponatremia reported due to the use of PEG. This study was designed to find frequency of sodium disorders after bowel cleansing by Polyethylene glycol solution for colonoscopies in Dr. Ruth K.M. Pfau, Civil Hospital Karachi.

Subarachnoid hemorrhage (SAH) occurs after rupture of cerebral aneurysms. Treatment of SAH focuses on avoiding medical complications including cerebral vasospasm, which may result in limited circulation to the brain. Cerebral vasospasm, or thinning of the arteries of the brain, is a feared complication that could potentially cause stroke and worst outcomes after SAH. Hypertonic saline (HTS) is a compound that may be used to prevent vasospasm following SAH by enhancing the circulation in the brain. This study will evaluate if a protocol of volume expansion with HTS is safe and effective in patients with subarachnoid hemorrhage for the prevention of cerebral vasospasm.

Primary hypothesis: osmolality changes influence the sensitivity of the respiratory center to carbon dioxide, hyponatraemia causing hyperventilation, and hypernatraemia depressing ventilation. Secondary hypothesis: There are gender differences in the sensitivity to osmolality changes. 10 women and 10 men will on different occasions drink water or receive hypertonic saline intravenously, in order to lower or increase plasma osmolality. The women will participate during both faces of the menstruation cycle. On each occasion the subject´s sensitivity to carbon dioxide will be tested, and blood samples will be drawn for analysis of blood gases,electrolyte and osmolality.Subjects who interrupt participation before completion of all planned occasions, will be substituted, so that 10 subjects of either sex will have participated as planned. All results from all participants will be analyzed.

Retrospective audit of adult patients who underwent major surgery in our institution, and biochemical outcomes including hyponatremia, in relation to the maintenance fluid tonicity administered peri-operatively.

This Post-Marketing Surveillance will be conducted in accordance with the local regulation of New Drug Re-examination. The surveillance will be conducted for 6 years of the re-examination period (01Sep2011~31Aug2017). Each subject will be observed at least for 4 days during the surveillance period.

Hyponatremia is the most frequent electrolyte disorder encountered in clinical practice. The patient approach, however, is still problematic, above all because hyponatremia is a manifestation correlated to various pathological conditions, with complex etiopathogenesis. Even though some algorithms have been proposed to correctly assess hyponatremia subtype classification and patient volume status, there is no single parameter that has proven to be able alone to perfectly achieve this result.

Our purpose is to investigate the improvement of the cognitive, neuropsychologic and physical capabilities using a standardized multidimensional geriatric assessment (MGA) consisting of a battery of validated assays after correction of hyponatremia in patients 70 years or older.

This is a phase IV, open-label, prospective cohort study for 7 days.The recommended starting dose of tolvaptan is 15 mg daily orally. The dose may be titrated on the next day at 15 mg intervals up to 60 mg daily according to the serum sodium level response.Serum sodium level, change in sodium level from baseline, quality of life (EQ-5D-3L), change in body weight, edema, renal function, mortality and liver-related complications on day 7 and day 30 to evaluate the efficacy of tolvaptan in cirrhotic patients with hyponatremia.