14 results
Primary and Secondary Causes of Mitral Regurgitation
Primary (organic) chronic mitral regurgitation:
 • Leaflet: Rheumatic fever, Infective
, Infective endocarditis ... , Infective endocarditis ... • Prosthetic valve ... annulus valve: ... Regurgitation #differential
Petechial/Purpuric Rashes- THE ALGORITHMIC APPROACH 

These rashes can be especially challenging and are
associated with devastating differential
inflammation or infection ... petechiae/purpura with fever ... gonococcal disease, endocarditis ... #Diagnosis #Dermatology ... Purpural #Purpuric #Rash
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
- Differential ... - Trauma - Infection ... Red Flags: • Fever ... Schonlein Purpura - Endocarditis ... #Differential #
Causes of Thrombocytopenia - Differential Diagnosis Framework
Decreased Production:
 - Drugs (chemo, yang, sulfa, acetaminophen, NSAIDs, quinine,
quinine, etc) - Viral ... infiltration: malignancy, infection ... - Mechanical: valve ... replacement, endocarditis ... Diagnosis #Framework #hematology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... mountain spotted fever ... • Bacterial endocarditis ... #Diagnosis #hematology ... palpable #nonpalpable
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
Involves aortic and mitral ... night sweats, fever ... Marantic (NTBE) Differential ... Paradoxical emboli via ASD ... Persistent bacteremia/fevers
Extra-articular and Other Conditions Associated with Joint Pain

Eyes
  • Iritis or uveitis - Spondyloarthropathies, Sarcoidosis,
infection • ... Subacute bacterial endocarditis ... Cardiovascular system • Mitral ... infection, Amyloidosis ... #joint #pain #differential
MR SMITH Mnemonic for Causes of Rashes on Palms and Soles

M - Meningococcemia
R - Rickettsia, Rat
Rickettsia, Rat bite fever ... Monkeypox I - Infective ... Endocarditis T ... MRSMITH #Mnemonic #Rash ... #Palms #Soles #Differential
Top 10 situations when to think about lupus
1) Inflammatory joint pain (especially in the wrists and
everywhere) 2) A rash ... the face (many differential ... ; sometimes « viral ... 9) Unexplained fever ... , when infection
Endocarditis - Overview and Differential Diagnosis Framework

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV
and Differential ... involves aortic and mitral ... night sweats, fever ... Persistent bacteremia/fevers ... #Endocarditis #Differential