Pathology Lab: Valvular disease

Question 1

What is the Venturi effect?

Answer 1

A fluid decreases pressure when it passes through a narrow opening

Question 2

What proportion of patients with strep pharyngitis will develop rheumatic heart disease?

Answer 2

3%

Question 3

In the three layers of the heart, what pathologic changes will be present in pancarditis?

Answer 3

The endocarditis will be thickened, the myocardium will have Aschoff bodies, and the pericardium will be fibrinous and have patches of adherence.

Question 4

Characterize the vegetations formed in rheumatic heart disease, nonbacterial endocarditis, Libman-Sacks endocarditis, and bacterial endocarditis.

Answer 4

RHD = small deposits along the upper rim of the valve; NE = larger clumps along the ridge of the valve; LSE = clumps on both sides of the valve; BE = colony on leaflet

Question 5

What are some synonyms of myxomatous degeneration?

Answer 5

Hooding, tenting, and ballooning of the leaflets

Question 6

Mitral valve prolapse is most commonly seen in _____________.

Answer 6

thin women