Valve Disorders Flashcards

1
Q

Rheumatic fever

A

Acute multi system inflammation

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2
Q

Cause of RF

A

Untreated Streptococcus pharyngitis - didn’t finish antibiotic or misdiagnosed

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3
Q

40% of RF can cause?

A

Pancarditis (all 3 layers of the heart)

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4
Q

RF inflammation can cause?

A

Fibrous, scar tissue in myocardium

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5
Q

Rheumatic endocaditis

A

Valves are affected

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6
Q

Modified Jones Criteria?

A

Diagnosis for Rheumatic fever

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7
Q

Which valve is most affected by Chronic Rheumatic carditis?

A

Mitral but aortic and tricuspid can be affected

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8
Q

Txn for RH?

A

Penicillin (treat infection) and NSAIDS, Colchicine

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9
Q

Nursing interventions

A
  1. Health promotion and disease prevention
  2. Seek medical attention if you have strep throat
  3. Education on meds and finishing the meds
  4. Rest and relieve pain
  5. Admin penicillin
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10
Q

Type of Valve Diseases

A

Stenosis and Regurgitation

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11
Q

Stenosis

A

Narrowing - impairing forward blood flow

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12
Q

Regurgitation

A

Incomplete closure - back flow of blood

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13
Q

Causes of valvular heart disease?

A

RH
AIDS
Congenital conditions (born)
Older Adults w/ cardiovascular diseases
Infective endocarditis

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14
Q

Mitral valve stenosis most commonly from?

A

RHD (mostly)
Congential
RA
SLE (lupus)

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15
Q

What happens in mitral valve stenosis?

A

LA pressure increases due to increased volume (pressure overload)
Pulmonary vascular resistance increases because of hypertrophy in vessel

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16
Q

S/S of mitral stenosis

A

DOE, fatigue, Afib, low pitched diastolic murmur at Apex

17
Q

Mitral regurgitation causes

A

MI (mostly), RHD, MVP, IE, ischemic papillary muscle dysfunction

18
Q

S/S in Acute MR

A

Pulmonary edema and cardiogenic shock

19
Q

S/S of chronic MR

A

LV failure, S3, Murmur - surgery needed to prevent LV failure or Pulmonary hypertrophy

20
Q

Acute MR intervention

A

Needs quick intervention to cath lab or surgery for valve repair or replacement

21
Q

Mitral prolapse can cause

A

Mitral regurgitation, HF, infectious endocarditis

22
Q

S/S of mitral prolapse

A

Most are asymptomatic, 10% shows signs of
Palpitations
Dyspnea
Chest pain
Activity intolerance
Syncope
Murmur
Mid-systolic click

23
Q

Management of mitral prolapse

A
  1. Beta blocker
  2. Stay well hydrated
  3. Exercise
  4. Avoid caffeine and stimulants
  5. Antibiotics prophylaxis
24
Q

Aortic stenosis usually seen from?

A
  1. Congenital
  2. RF if from this leaflets stiffen and retract, resulting in stenosis
  3. Adult or 65 or older
25
Q

Pathology of Aortic Valve

A

Blood flow is obstructed from LV to aorta during systole.
LV hypertrophy occurs so O2 demand increases
Disease progression results in- decreased CO, tissue perfusion, pulmonary hypertrophy and HF

26
Q

S/S of Aortic valve stenosis

A

Angina, syncope, exertional dyspnea (LV HF), HF, systolic murmur, diminished or absent S2 and prominent S4

27
Q

Aortic Valve regurgitation?

A

Blood flow from the aorta into the LV during diastole - which will cause hypertrophy due to overload

28
Q

Acute Aortic valve regurgitation can cause?

A

Cardiovascular collapse
Profound dyspnea
Chest pain
Hypotension
Cardiogenic shock

This is a MEDICAL EMERGENCY

29
Q

Chronic Aortic Valve Regurgitation can?

A

Remain asymptomatic for years.
Heart sounds- soft S1, S3 or S4, soft, high pitched diastolic murmur. Low pitched murmur in severe.

30
Q

In Tricuspid and Pulmonary Valve diseases?

A

Stenosis is most common

31
Q

Tricuspid stenosis we see?

A

RA enlargement elevated systemic venous pressure

32
Q

Tricuspid stenosis seen from?

A

IV drug users and RH

33
Q

Pulmonic stenosis is seen from?

A

Congenital

34
Q

Pulmonic stenosis results in?

A

RV hypertrophy and HTN

35
Q

How to diagnosis Valve Heart Disease?

A
  1. History and Physical - Did they have Rheumatic fever as a child? Have you had a sore throat?
  2. Heart sounds, CXR, EKG
  3. Most definite is Echo
  4. Heart cath
36
Q

Treatment for Valves?

A
  1. Depends on severity
  2. Treat symptoms and prevent exacerbations
  3. Meds like vasodilators, inotropes, BB, diuretics, low Na
  4. Surgery- valvuotomy is procedure of choice - to repair closed or open.
    Closed - transventricular dilator is inserted
    Open- cardiac bypass
  5. Valve replacement with prosthetic