Valvular Disease Flashcards

1
Q

order of valve progression in heart

A

tricuspid –> pulmonic –> mitral –> aortic

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2
Q

when do the tricuspid and aortic valves open?

A

during systole

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3
Q

when do the tricuspid and aortic valves close?

A

during diastole

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4
Q

where do valve abnormalities usually occur?

A

on left side of heart

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5
Q

valves with stenosis

A

very tight and stiff; hard for the blood to get through

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6
Q

what valve often experienced stenosis?

A

aortic

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7
Q

valves with regurgitation

A

very loose and floppy; blood flows backward with increased pressures

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8
Q

what valve often experiences regurgitation?

A

mitral

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9
Q

symptoms of aortic stenosis

A

–syncope
–light headedness
–chest pain
often asymptomatic

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10
Q

symptoms of mitral regurg

A

–fatigue
–shortness of breath
no chest pain

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11
Q

where does infective endocarditis usually occur? Why?

A

tricuspid valve; that is the first valve that comes into contact with infected blood from the bloodstream

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12
Q

what can happen if vegetation breaks loose from the tricuspid valve?

A

pulmonary embolus

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13
Q

what can happen if vegetation breaks loose from mitral valve?

A

systemic manifestations; clots/septic emboli

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14
Q

risk factors for infective endocarditis

A

–prosthetic valve
–pacemaker-associated
–IVDA

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15
Q

symptoms in infective endocarditis

A

–fever
–chills
–anorexia
–weight loss
–myalgias
–arthralgias
–heart murmur

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16
Q

what might be the initial clinical manifestation of IE?

A

signs of ischemia or infarction of the extremities, spleen, kidney, bowel, or brain

17
Q

septic emboli

A

–microorganisms in heart attract WBCs and platelets, which release cytokines and coag factors
–stimulation of coag cascade results in fibrin deposition and development of a vegetation
–fragments of vegetation can embolize into the circulation

18
Q

classic clinical manifestations of IE: septic emboli

A

–petechiae
–splinter hemorrhages (fingernails)
–Janeway lesions
–Osler’s nodes
–Roth spots

19
Q

Janeway lesions

A

erythematous, nontender lesions on the palms and soles

20
Q

Osler’s nodes

A

subcutaneous nodules in the pulp of the fingertips

21
Q

Roth spots

A

oval retinal hemorrhages with pale centers