Letter: Association Between Anemia and Prognosis in Patients With Acute Coronary Syndrome and Atrial Fibrillation

Dear Editor,

We read with great interest the recent article by Shu et al, ¹ “Association Between Anemia and Prognosis in Patients With Acute Coronary Syndrome and Atrial Fibrillation.” This work contributes to understanding how anemia may influence outcomes in patients facing the dual burden of acute coronary syndrome (ACS) and atrial fibrillation (AF).

Previous research has shown that anemia is associated with increased mortality in ACS patients ² and poorer outcomes in individuals with AF. ³ Given the high prevalence of anemia in cardiovascular patients, ⁴ the study’s implications are particularly relevant to real-world clinical practice.

This work ¹ invites further reflection. The mechanisms underlying the observed association—whether anemia is a marker of comorbid burden or plays a more direct pathophysiological role—remain an important area for future research. Additionally, questions on how best to manage anemia in the context of ACS and AF are still open. Exploring whether targeted interventions could improve clinical outcomes would be another worthwhile pursuit in subsequent studies.

Overall, this article ¹ both insightful and thought-provoking. I appreciate the authors’ efforts in highlighting a topic that deserves closer attention in both clinical and research settings.

Hilal Tunçer, MD, Özden Seçkin, MD, and Serkan Ünlü, MD, PhDCardiology Department, Gazi University Hospital, Ankara, Yenimahalle, Turkey