Abstract

LOPEZ-PATINO, Helber Gonzalo et al. Syncope as a clinical manifestation of paroxysmal atrioventricular block and response to bicameral pacemaker implantation. CES Med. [online]. 2021, vol.35, n.2, pp.156-164.  Epub Feb 10, 2022. ISSN 0120-8705.  https://doi.org/10.21615/cesmedicina.5672.

Syncope is the main symptom presented by patients with paroxysmal complete atrioventricular block, and it may be due to several intrinsic or extrinsic etiologies. AV blocks are a major cause of dysfunction, with a high burden of disease, even in patients without ischemic heart disease or underlying structural abnormality. The case of a patient with a structurally normal heart is presented, who was admitted for a syncope study and during a 24-hour Holter monitoring, a paroxysmal complete AV block was documented, which led to the implantation of a bicameral pacemaker and had a very good response to the procedure. Complete AV blocks can be paroxysmal or permanent, and the only way to differentiate them is by electrocardiographic findings. It is very important to make the diagnosis of complete AV block, either paroxysmal or permanent, because the only treatment is the implantation of a cardiovascular implantable electronic device.

Keywords : Atrioventricular block; Electrocardiography; Pacemaker; Syncope..

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