Complete Atrioventricular Block Presenting With Syncope Caused by Severe Hypothyroidism

A 75-year-old man was admitted to our hospital with syncope. Electrocardiogram showed complete atrioventricular block and bradycardia with the minimum heart rate of 22 beats/ min. There was a possible indication for temporary cardiac pacemaker implantation. Laboratory data on admission revealed high...

Descripción completa

Detalles Bibliográficos
Autores principales: Seol, Sang-Hoon, Kim, Doo-Il, Park, Bo-Min, Kim, Dong-Kie, Song, Pil-Sang, Kim, Ki-Hun, Jin, Han-Young, Seo, Jeong-Sook, Jang, Jae-Sik, Yang, Tae-Hyun, Kim, Dae-Kyeong, Kim, Dong-Soo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elmer Press 2012
Materias:
Case Report
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5358139/
https://www.ncbi.nlm.nih.gov/pubmed/28348695
http://dx.doi.org/10.4021/cr221w
Descripción
Sumario:A 75-year-old man was admitted to our hospital with syncope. Electrocardiogram showed complete atrioventricular block and bradycardia with the minimum heart rate of 22 beats/ min. There was a possible indication for temporary cardiac pacemaker implantation. Laboratory data on admission revealed high TSH level with low free T4 level. To rule out functional atrioventricular block, we treated several days with thyroxine. A follow-up electrocardiogram showed improved heart rate without any atrioventricular block. We found that severe hypothyroidism caused a complete atrioventricular block with syncope, and thyroxine replacement completely improved these conditions.

Ejemplares similares