A case of femoral arteriovenous fistula causing high-output cardiac failure, originally misdiagnosed as chronic fatigue syndrome.
Porter, J, Al-Jarrah, Q, Richardson, S·Case reports in vascular medicine·2014
This case study describes a 34-year-old marathon runner who was initially diagnosed with chronic fatigue syndrome but actually had a rare blood vessel problem called a femoral arteriovenous fistula. This condition, caused by a small injury during a heart catheterization procedure years earlier, created an abnormal connection between an artery and vein in the leg that forced the heart to work much harder than normal. Surgery to repair this fistula completely resolved the patient's fatigue and heart problems, showing that careful medical evaluation is important when fatigue symptoms don't improve with standard treatment.