Front Endocrinol (Lausanne). 2014 Jul 01;5:102. doi: 10.3389/fendo.2014.00102. eCollection 2014.
Clinical concepts on thyroid emergencies.
Frontiers in endocrinology
Giampaolo Papi, Salvatore Maria Corsello, Alfredo Pontecorvi
Affiliations
Affiliations
- Department of Endocrinology, Catholic University of Rome , Rome , Italy.
PMID: 25071718
PMCID: PMC4076793 DOI: 10.3389/fendo.2014.00102
Abstract
OBJECTIVE: Thyroid-related emergencies are caused by overt dysfunction of the gland which are so severe that require admission to intensive care units (ICU) frequently. Nonetheless, in the ICU setting, it is crucial to differentiate patients with non-thyroidal illness and alterations in thyroid function tests from those with intrinsic thyroid disease. This review presents and discusses the main etiopathogenetical and clinical aspects of hypothyroid coma (HC) and thyrotoxic storm (TS), including therapeutic strategy flow-charts. Furthermore, a special chapter is dedicated to the approach to massive goiter, which represents a surgical thyroid emergency.
DATA SOURCE: We searched the electronic MEDLINE database on September 2013. Data Selection and Data Extraction: Reviews, original articles, and case reports on "myxedematous coma," "HC," "thyroid storm," "TS," "massive goiter," "huge goiter," "prevalence," "etiology," "diagnosis," "therapy," and "prognosis" were selected.
DATA SYNTHESIS AND CONCLUSION: Severe excess or defect of thyroid hormone is rare conditions, which jeopardize the life of patients in most cases. Both HC and TS are triggered by precipitating factors, which occur in patients with severe hypothyroidism or thyrotoxicosis, respectively. The pillars of HC therapy are high-dose l-thyroxine and/or tri-iodothyroinine; i.v. glucocorticoids; treatment of hydro-electrolyte imbalance (mainly, hyponatraemia); treatment of hypothermia; often, endotracheal intubation and assisted mechanic ventilation are needed. Therapy of TS is based on beta-blockers, thyrostatics, and i.v. glucocorticoids; eventually, high-dose of iodide compounds or lithium carbonate may be of benefit. Surgery represents the gold standard treatment in patients with euthyroid massive nodular goiter, although new techniques - e.g., percutaneous laser ablation - are helpful in subjects at high surgical risk or refusing operation.
Keywords: hyperthyroidism; hypothyroid coma; hypothyroidism; massive goiter; thyrotoxic storm; thyrotoxicosis
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