Case Presentation: We report here a case of high output heart failure (HOHF), a rare but potential complication of Arteriovenous fistula (AVF) in a post-renal transplant patient.A 60-year-old male with end-stage renal disease and subsequent renal transplant 3 months ago presented with exertional dyspnea, worsening anasarca, and weight gain of 20 pounds. The patient also [...]