Bimrew, A.; Kefyalew, M.; Bahru, yeabsira; Akalu, S.; Leis, M.; chun, shannon; warkentin, tiahna. Refractory Unstable Atrial Fibrillation in a Young Ethiopian Patient With Rheumatic Heart Disease: Insights and Challenges: Refractory Unstable Atrial Fibrillation in a Young Ethiopian Patient With Rheumatic Heart Disease: Insights and Challenges. PAJEC 2026, 4.