02.13 Cardiomyopathy and Myocarditis Flashcards Preview

Cardiology > 02.13 Cardiomyopathy and Myocarditis > Flashcards

Flashcards in 02.13 Cardiomyopathy and Myocarditis Deck (28):
1

Disease of heart muscle that results from myriad insults, not the result of congenital, acquired valvular, hypertensive, coronary arterial or pericardial abnormalities

Cardiomyopathy

2

Consisting of heart muscle disease predominantly involving the myocardium and/or unknown cause

Primary type of cardiomyopathy

3

Consisting of myocardial disease of known cause or associated with a systemic disease such as amyloidosis or chronic alcohol use

Secondary type

4

Primary type of cardiomyopathy

Dilated
Hypertrophic
Restrictive
Unclassified

5

Secondary type of cardiomyopathy

Infective
Metabolic
Systemic disease
Heredofamilial
Sensitivity
Toxic

6

Dilatation
Reduction in ventricular contractile function
Large volume heart
Systolic dysfunction

Dilated cardiomyopathy

7

Thick myocardium
LV outflow tract obstruction
Diastolic dysfunction

Hypertrophic cardiomyopathy

8

Rigid myocardium
Diastolic dysfunction

Restrictive cardiomyopathy

9

Most common cause of systolic dysfunction

Coronary artery disease

10

Most common form of CM

Dilated CM

11

Diastolic dysfunction
Ischemia
Arrhythmias
Outflow obstruction
Syncope, chest pain, sudden cardiac death

Hypertrophic CM

12

ICD is indicated when

Previous cardiac arrest
Spontaneous sustained ventricular tachycardia
Non-sustained spontaneous ventricular tachycardia
Unexplained syncope
Blunted increase/decrease in systolic BP with exercise
Left ventricular wall thickness >/= 30 mm
1st degree relative with sudden death
Dilated cardiomyopathy with ejection fraction

13

Rare condition
Ventricular filling is impaired because ventricles are stiff
Leads to high atrial pressure with atrial hypertrophy, dilatation, and later atrial fibillation

Restrictive CM

14

Most common cause of restrictive CM

Amyloidosis

15

Rigid myocardium leads to ____ diastolic ventricular pressure, ___ ventricular filling

Increased
Decreased

16

Holiday heart syndrome
Consumption of large quantities of alcohol
Consistently drinking

Alcoholic CMP

17

Occurs during last trimester or within 6 months after delivery

Peripartum CMP

18

Anthracycline derivatives
Cyclophosphamide
Cocaine abuse

Drug-induced CMP

19

Unusual, often familial, condition characterized by the replacement of myocardial tissue by fat and fibrous tissue

Arrhythmogenic right ventricle dysplasia (ARVC)

20

Most common location for tissue transformation in ARVC is referred to as

Triangle of dysplasia (between the anterior infundibulum, RV apex, and inferior or diaphragmatic aspect of the RV)

21

Diagnostic modality of choice of ARVC

MRI

22

Apical ballooning syndrome
Abrupt onset of severe chest discomfort preceded by very stressful emotional or physical event
Common among . 50 years of age

Takotsubo/stress-induced CM

23

Trigger massive catecholamine release causing multi-vessel apicardial spasm, microvascular dysfunction, myocardial stunning and minor injury

Takotsubo/stress-induced CM

24

Mayo Clinic criteria for diagnosis of Takotsubo

Transient reversible akinesis of LV apical and mid-ventricular segments
Absence of obstruction coronary artery stenosis
New electrocardiographic abnormalities consisting of ST-elevation or T-wave inversion
Absence of recent head trauma, intracranial bleeding, pheochromocytoma, obstructive epicardial coronary artery disease, myocarditis, hypertrophic CM

25

Characterized by myocardial inflammation, necrosis, fibrosis
Cardiomegaly and diminished systolic function occur due to myocardial damage

Myocarditis

26

ECG changes are nonspecific
In CXR, cardiomegaly, pulmonary vascular prominence, pulmonary edema or pleural effusions
Inflammatory cell infiltrates

Myocarditis

27

Primary therapy for acute myocarditis

Supportive

28

Accepted therapy for myocarditis

Conventional heart failure therapy