The Clinical Problem Solvers Episode 376 – RLR – The Same Start but a different end
Feb 3, 2025
Two sequential cases of fatigue lead to very different diagnoses. One case raises suspicion for prosthetic valve infection with stroke from a septic embolus. The other reveals acute post-dialysis spinal cord ischemia causing paralysis. The conversation highlights key diagnostic branch points and a simple triage rule: eat, walk, and talk.
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Ask If Fatigue Worsens With Exertion
- Do ask whether fatigue is worse with exertion to prioritize cardiopulmonary or noncardiac causes.
- Robbie and Reza use this single branch point to quickly decide whether to focus on heart/lungs/hematology versus endocrine, psychiatry, or other causes.
Leukocytosis Points Away From Primary Atrial Fibrillation
- A high WBC with new AF and pulmonary edema suggests an inflammatory trigger for heart failure, not just primary arrhythmia.
- Reza reasons leukocytosis 27,000 makes AF likely secondary to systemic illness like sepsis or endocarditis rather than the primary cause.
Get Blood Cultures And Echo Fast For Prosthetic Valves
- Do obtain blood cultures and echocardiography early when a patient with a prosthetic valve presents with unexplained inflammation or decompensated heart failure.
- Reza emphasizes low threshold for cultures and TTE/TEE (and advanced imaging if needed) in prosthetic-valve patients.