View clinical trials related to Low T3 Syndrome.
Filter by:Low levels of serum triiodothyronine (T3) thyroid hormones (T4) are a strong predictor of mortality and poor prognosis in critical care patients. Few reports, however, have focused on neurocritical patients. Patients with severe neurological diseases often experience more complications and exhibit higher mortality rates, and many studies have provided evidence for a low T3/T4 state being an important prognostic indicator in such cases; Lieberman et al. found that 87% of individuals with severe traumatic brain injury have thyroid function below the mid-normal range. Other researchers showed that low T3 syndrome is a predictor of poor prognosis in cerebral infarction patients; their findings indicated the central hypothyroidism and disturbance of thyroid hormone metabolism were involved. Low T3 syndrome is common in patients with brain tumors and has been shown to be associated with shorter survival in glioma patients. Despite these observations, however, whether the thyroid hormone abnormalities in the critically ill are a physiological adaptation or a pathological change, and whether hormone replacement therapy (HRT) can benefit such patients, remain to be established. As acute progression ceases, thyroid hormone levels may return to normal. This may imply that thyroid hormone supplements could improve the prognosis of patients with secondary hypothyroidism. Previous clinical studies have examined the effect of thyroid HRT on patients undergoing cardiac surgery; patients with malnutrition, heart failure, or acute renal failure; and premature infants with acute respiratory distress syndrome. Most of these past studies found no significant positive effects on prognosis, and no harmful effects either. Some smaller studies have demonstrated potential promise for the use of HRT; for example, one study showed that T3 supplementation in patients undergoing cardiac surgery could lead to less need for inotropic support and better hemodynamic parameters. There are no reports of thyroid HRT improving the prognosis of neurocritical patients with secondary hypothyroidism. The application of hormone replacement therapy in the treatment of neurocritical patients with secondary hypothyroidism remains controversial. This study aims to explore the safety and effectiveness of thyroid hormone replacement therapy in patients with spontaneous intracerebral hemorrhage and concomitant secondary hypothyroidism.
Low triiodothyronine (T3) syndrome defines as decrease of T3 levels during critically ill. This decrease of T3 levels was observed after congenital heart surgery using cardiopulmonary bypass. Previous largest study,Triiodothyronine for Infants and Children Undergoing Cardiopulmonary bypass (TRICC) study showed T3 supplementation decreased time to extubation for infants less than 5 months undergoing cardiopulmonary bypass. Intravenous regiment was known effective in maintaining T3 levels during pediatric cardiac surgery. This drug preparation however is not commonly used in many countries due to the relatively high costs and/or the simple lack of availability. The use of oral T3 to treat postoperative low T3 levels in pediatric patients has not been reported so far, although recent adult studies showed benefit in using oral T3 after cardiac surgery. The purpose of this study was to determine if oral T3 supplementation could prevent the decline of serum T3 in children less than 2 years of age undergoing congenital heart surgery using CPB.
Purpose: The purpose of the study is to examine if treatment with liothyronine increases left ventricular ejection fraction (LVEF) in patients with stable, chronic heart failure.
AQUA FONTIS is a unicentric, multidisciplinary, prospective cross-section and longitudinal study that aims at the development of a more clear-cut diagnostic definition and classification of non-thyroidal illness syndrome (NTIS).