Recurrent Syncope in a Case with Mediastinal Lymphoma

Autor:	Miwa, Nagano, Ikuo, Misumi, Koji, Sato, Koichi, Haba, Hiroshi, Yamasaki, Yasuo, Toyozumi, Hiroki, Usuku, Kenichi, Tsujita
Rok vydání:	2022
Předmět:	Aged 80 and over Male Lymphoma Bradycardia Humans Vagus Nerve General Medicine Autonomic Nervous System Cardiology and Cardiovascular Medicine Mediastinal Neoplasms Syncope
Zdroj:	International Heart Journal. 63:647-650
ISSN:	1349-3299 1349-2365
DOI:	10.1536/ihj.21-768
Popis:	An 83-year-old man suddenly lost consciousness, and his blood pressure dropped. Results of blood analysis were within normal range. A chest radiograph showed enlargement of the left mediastinum. Computed tomographic scan of the chest showed a large mass surrounding the left common carotid artery in the left upper mediastinum. Histology revealed a large B-cell lymphoma. A Holter ECG showed transient sinus bradycardia and atrioventricular block. The power spectrum revealed increase in power of high frequency, suggesting that general vagal activity might be related to bradycardia. Evaluation of autonomic system from high frequency and low frequency components may be useful in examining the mechanisms of sudden bradycardia and/or hypotension of unknown origin.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::95be09647f659eca0b622b2699947778 https://doi.org/10.1536/ihj.21-768 Zobrazit plný text záznamu