Last update:
   01-Aug-2025
 

Arch Hellen Med, 42(5), September-October 2025, 700-702

CASE REPORT

Right bundle branch block and omega-3 fatty acids

V.M. dos Santos,1 L.C. Modesto,2 J.C. Modesto3
1Department of Internal Medicine, Armed Forces Hospital and Catholic University, Brasilia-DF
2University Center (UNICEUB), Brasília-DF
3Catholic University, Brasilia-DF, Brazil

An asymptomatic 68-year-old Brazilian man had a normal routine electrocardiogram, while annual control in February 2021 showed a right bundle branch block, with no changes in chest images and laboratory tests, including Chagas' disease. The echocardiogram resulted normal; notwithstanding, 1,000 mg daily of omega-3 fatty acids (O3FAs) (eicosapentaenoic acid plus docosahexaenoic acid) were preventively prescribed. Worthy of note was the electrocardiogram of April 2024 revealing an improved pattern. Considering that this previously healthy patient did not undergo any other treatment, these findings could strengthen the hypothesis of a favorable effect with the O3FAs utilization.

Key words: Electrocardiogram, Omega-3 fatty acids, Right bundle branch, Treatment.

© Archives of Hellenic Medicine