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Memorias del Instituto de Investigaciones en Ciencias de la Salud

versión On-line ISSN 1812-9528

Resumen

TORALES, Judith M. et al. Double thyroid and arrhythmic storm in a pregnant woman with multiple refractory tachycardias mediated by an intermittent anomalous Kent tract successfully ablated. Mem. Inst. Investig. Cienc. Salud [online]. 2024, vol.22, n.1, e22132401.  Epub 19-Mar-2024. ISSN 1812-9528.  https://doi.org/10.18004/mem.iics/1812-9528/2024.e22132401.

Thyroid storm is a critical and infrequent state that conditions the dysfunction of multiple organs due to the effect of excess thyroid hormones. This endocrine dysfunction has a high mortality and generates typical manifestations such as tachycardia, fever, gastrointestinal, cardiovascular and heart disorders, and the central nervous system. Pregnancy has been associated with an increased incidence of arrhythmias. They need immediate treatment with antiarrhythmic drugs, electrical cardioversion, or emergency caesarean section. WPW is a congenital cardiac abnormality that consists of the presence of an abnormal bundle (Kent bundle) that prevents the normal conduction system, directly joining the atria and ventricles. We will see the case of a 32-week pregnant woman who presented symptoms of thyroid storm and multiple episodes of paroxysmal supraventricular tachycardia (PST), with a torpid clinical course mediated by an abnormal intermittent Kent bundle. It is evident that the thyroid storm in the context of pregnancy produced changes in the electrophysiological properties of the intermittent Kent bundle, which led to the development of multiple PST refractory to electrical and pharmacological cardioversion. Moreover, it also did not improve with total thyroidectomy, only resolved completely with radiofrequency catheter ablation of the Kent bundle.

Palabras clave : Intermittent Wolf-Parkinson-White syndrome; Thyroid storm; Paroxysmal supraventricular tachycardia; Atrial flutter.

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