9 results
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
Causes of blood ... culture negative infective ... #Causes #differential ... #diagnosis #causes ... #InfectiousDiseases
Blood Culture-Negative Infective Endocarditis (BCNIE)
Definition: No etiology found after 3 separate blood cultures remain negative for
Endocarditis (BCNIE ... but important causes ... BCNIE Diagnostic ... diagnosis #differential ... #workup #infectiousdiseases
Primary and Secondary Causes of Mitral Regurgitation
Primary (organic) chronic mitral regurgitation:
 • Leaflet: Rheumatic fever, Infective
and Secondary Causes ... annulus valve: ... Regurgitation #differential ... #diagnosis #cardiology ... #causes #primary
Causes of mitral stenosis
Rheumatic heart disease
 - Most common cause worldwide. Commissural fusion, thick MV leaflets
Causes of mitral ... endocarditis (vegetations ... atrial myxoma)/ball valve ... #stenosis #Causes ... #diagnosis #differential
Causes of Thrombocytopenia - Differential Diagnosis Framework
Decreased Production:
 - Drugs (chemo, yang, sulfa, acetaminophen, NSAIDs, quinine,
Causes of Thrombocytopenia ... - Differential ... infiltration: malignancy, infection ... - Mechanical: valve ... replacement, endocarditis
Causes of Primary and Functional Mitral Regurgitation (MR) 
Causes of primary mitral regurgitation
 - Rheumatic heart
Causes of Primary ... Regurgitation (MR) Causes ... stenosis - Infective ... /marantic endocarditis ... #Causes #Primary
Widened Pulse Pressure - Differential Diagnosis and Pathophysiology

Pulse pressure is the difference between the systolic blood
Physiologic Causes ... Pathologic Causes ... sclerosis (both heart valve ... Endocarditis ... #causes #cardiology
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
Involves aortic and mitral ... positive in 90% of IE cases ... Marantic (NTBE) Differential ... + Systemic anticoagulation ... #Endocarditis #diagnosis
Endocarditis - Overview and Differential Diagnosis Framework

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV
involves aortic and mitral ... positive in 90% of IE cases ... + Systemic anticoagulation ... #Endocarditis #Differential ... #infectiousdiseases