Restrictive And Other Cardiomyopathies Flashcards
What does this image represent?
Dip and plateau/ square root sign
Why is there a different in waveform for the two?
Top is elevated filling pressures and the bottom is normal
What does this image represent? And what features are present? 4
- Amyloidosis
- LVH present
- Speckled myocardium
- Small pericardial effusion
What does this image represent? What is evident symptoms?
- Amyloidosis
- LVH and myocardial speckling evident
What is the difference between the waveforms?
- Left: Normal heart 10cm/s
- Amyloid - S’ = 4cm/s
RWMA don’t correspond to what in sarcoidosis?
Coronary arteries
What does this image represent?
RCM- HES
What does this image represent?
Fabry disease
What does this image represent?
ARVC/D
What does this image represent?
LV non-compaction
What does this image represent?
LV non-compaction
Look at the trabecular
What does this image represent?
Non-compaction of the LV
What does this image represent?
Non-compaction of LV
What is restrictive cardiomyopathy RCM?
A type of cardiomyopathy characterized by increased resistance to ventricular filling due to increased myocardial stiffness, decreased compliance, or both
What is RCM associated with? 2
Increased filling pressures such as:
1. Increased LVED
2. Increased LAP
What is the etiology of RCM?
Abnormal infiltration, storage or fibrosis within the myocardium
What are non-infiltrative restrictive CMO causes? 5
- Idiopathic CMO
- Familial CMO
- Hypertrophic CMO
- Scleroderma (scars in the heart)
- Diabetic CMO Fibrosis
What is causes of infiltrative RCM? 4
- Amyloidosis
- Sarcoidosis
- Hurler’s disease
- Loeffler’s disease
What is causes of storage disease RCM?5
- Endomyocardial fibroelastosis
- Carcinoid heart disease
- Radiation
- Chemo effects
- HES
Hypertrophic CMO is a separate class from RCM but can cause what? Therefoer it can also be considered what?
- Restrictive physiology
- Non-infiltrative form of RCM
How do we get a “dip and plateau”/ “square root” sign? 4
- Marked increase in LA Pressure
- Rapid rise in LV pressure with early diastolic filling
- Rapid equalization of LV and LA pressure
- Abrupt termination of early diastolic filling
Along with dip and plateau and square root, what is also seen with RCM filling pressures? 2
- Constrictive pericarditis
- Lots of early diastolic filling, but almost no late diastolic filling
What are some RCM clinical findings? 4
- DDfxn =HFpEF
- ECG
- CXR
- Ausculations
What is the clinical finding of HFpEF for RCM?
HF due to elevated LVEDP + LAP
What is the Clinical findings of ECG with RCM?
Arrhythmias such as:
1. A-fib (Common)
2. PVCs
What is clinical findings of CXR for RCM? 2
- Cardiomegaly
- Pulmonary congestion
What are clinical auscultations findings seen with RCM? 2
S3 and S4
What are some signs of left sided heart failure? 9
- Paroxysmal nocturnal dyspnea
- Elevated pulmonary wedge pressure
- Pulmonary congestion
- Restlessness
- Confusion
- Tachycardia
- Exertional dyspnea
- Fatigue
- Cyanosis
What are some right sided heart failure symptoms? 8
- Fatigue
- Increase in peripheral venous pressure
- Ascites
- Enlarged liver and spleen
- May be secondary to chronic pulmonary problems
- Distended jugular veins
- Anorexia and complications of GI distress
- Dependent edema
Most infiltrative disease affect what? Except what?
- LV
- ARVD
ARVD is typically associated with what side of the heart?
Right side
What are RCM echo findings? 4 (Anatomy)
- Bi-atrial enlargement
- +/- LVH
- Normal LV chamber size
- DDfxn grade 1-3
Why is there Bi-atrial enlargement for RCM?
RCM mimics constrictive pericarditis, but bi-atrial enlargement indicates RCM
DDFxn of RCM is dependent on what?
- Severity
- May be normal funciton in early stages
What is the role of echo in terms of assessment for RCM? 3
Assess:
1. Chamber size and function
2. Degree of diastolic function
3. Degree or MR or TR
What do we need to determine with echo for RCM? 4
- RVSP
- RCM vs constrictive pericarditis
- Degree of bi-atrial enlargement
- Presence of pericardial effusion
What are the medical treatments for RCM? 2
- CHF drugs such as diuretics and ACE inhibitors
- Anticoagulants (A-fib)
What are surgical treatments for RCM? 3
- Pacemaker
- Implantable cardioverter defibrillator (ICD)
- Cardiac transplant (poor long term results)
What are five restrictive CMO types?
- Amyloidosis
- Sarcoidosis
- Hemochromatosis
- HES
- Fabry disease
What is amyloidoses?
Infiltrative disease characterized by the deposition of amyloid fibrils in the extracellular space of various tissues
What is the most common type of RCM?
Amyloidosis
With amyloidosis, there is a deposit of what between myocytes?
Amyloid proteins
Why is diagnosis of amyloidosis challenging? What is it misdiagnosed as commonly?
- Requires biopsy
- Misdiagnosed in early stages as LVH due to HTN
What organs may amyloidosis affect? 3
- Kidneys
- Liver
- Heart
What are different amyloid disease types? 3
- Primary/ idiopathic
- Secondary
- Familial (hereditary)
Primary/ idiopathic amyloid disease affects which demographic more?
Males 3:1
What is secondary amyloid disease associated with?
Other inflammatory disorders like R.A., Tuberculosis, chrohn’s disease
What is another name for familila amyloid disease?
Transthyretin (TTR) type CMO
Who is most likely affected by Familial amyloid disease?
Senile males
What does the ECG look like for amyloid disease?
Low voltage ECG from
Why is there low voltage ECG with amyloid disease?
myocardial damage
In terms of amyloid disease, in addition to low voltage ECG, what is a very sensitive sign of amyloid?
LVH
What does the CXR look like for amyloid?3
- Cardiomegaly
- Pulmonary venous congestion
- Pleural effusion
What can Cardiac MRI do for Amyloid disease? 2
- Assess the extent of amyloid deposition
- Better tissue characterization than echo
What are some 2D echo features of amyloidosis? 5
- Granular appearance of the myocardium
- Concentric LVH + RVH
- Mild-moderate bi-atrial enlargement
- Pericardial effusion
- Evidence of PHTN
In terms of amyloid disease, what leads to more more severe diastolic dysfunction?
The greater the wall thickness
In terms of amyloid disease, what results in the most restrictive filling pattern in most patients? (Where is it?)
> 15mm in the IVS/PW
What are some quantitative values of amyloid disease?4
- Mitral E/A >2.0
- Decel time <160ms
- TDI e’ septal <5cm/s
- E/e’ ratio >14
What is early changes for amyloid look like? (LV systolic function)
LV systolic function and size may be normal
What does late changes of Amyloid disease look like? (LV systolic function) 4
- LV may dilate
- LVEF may reduce
- Mimics DCM as the thick LV muscle starts to thin and the LV dilates
- LA will dilate
What is sarcoidosis?
Infiltrative, granulomatous disease affecting multiple organs, which involves the heart in 25% of patients
Which demographic is primary affected by sarcoidosis?
- Females 2:1
- Young Africans
- Japanese
How common is sarcoidosis?
Rare
What does the granulomas infiltrate with sarcoidosis? 5
- Lungs
- Lymph nodes
- Liver
- Spleen
- Skin
What are some clinical features of sarcoidosis?
- Progressive HF S/S
- sudden death
- ECG features
What are some ECG features of sarcoidosis?
- Ventricular arrhythmias
- Heart block
The Dx for sarcoidosis is confirmed with what?
Myocardial biopsy
What are some early findings for sarcoidosis?
LVH
What are some late findings for sarcoidosis? 3
- RWMA
- Segmental wall thinning (fibrosis)
- LV dilation and decreased EF
What wall is affected by sarcoidosis in terms of thinning?
Basal anteroseptal wall
What is hemochromatosis?
Iron storage disease characterized by the accumulation of excessive iron within the cells of various organs
What are the two types of hemochromatosis?
- Primary
- Secondary
Which gender is affected more with hemochromatosis? When does it become more apparent?
- Females
- Middle ages
What is primary hemochromatosis?
Metabolic syndrome with excessive absorption of iron from diet and reduced elimination
What is secondary hemochromatosis?
Iron overload due to repeated blood transfusions in patients with chronic anemia, prolonged hemodialysis alcoholic liver disease
What is the hemochromatosis clinical pentad? 5
- CHG
- Liver cirrhosis
- Impotence
- Diabetes
- Arthritis
What is seen physically with hemochromatosis?2
- High blood iron levels
- “Bronze” skin
What does HES stand for?
Hypereosinonphilic syndrome
What is HES?
Blood disorder characterized by persistently elevated blood eosinophil counts without an identifiable underlying etiology
HES affects which side of the heart?
Both
What is needed to confirm diagnosis of HES?
Biopsy
What is the pathophysiology of HES? 4
- Eosinophils infiltrate the endocardium
- Mural thrombus and scarring
- Thrombus is replaced by thrombosis
- This stage may mimic DCM or RCM
What is Fabry disease?
Characterized by symmetric or asymmetric ventricular hypertrophy, conduction defects and aortic root dilation due to the accumulation of excessive lysome storage
What are five echo features of Fabry disease?
- Hyperechoic endocardium
- LVH
- Diastolic dysfunction
- Bi-atrial enlargement
- Ao root dilatation
Fabry disease may present as what?
Depending on the manifestation
1. HCM
2. DCM
3. RCM
What are four less common infiltrative cardiomyopathies?
- ARVD
- LV non-compaction
- Carcinoid heart disease
- Collagen disorders
What are two examples of collagen disorders?
- Lupus
- Rheumatoid artritis
What does ARVD stand for?
Arrhythmogenic RV dysplasia/ cardiomyopathy
What is ARVD?
A progressive replacement of the RV myocardium by fibrous and fatty tissue, resulting in wall thinning and aneurysm formation
How common is ARVD?
Rare
What is the etiology of ARVD?
Genetic
What are clinical signs of ARVD? 3
- Potentially asymptomatic
- Arrhythmias > sudden death
- CHF s/s
What is the most diagnostic way to determine ARVD?
Cardiac MR
What are Echo features of ARVD? 5
- RV systolic and diastolic dysfunction
- RV dilation, RV small aneurysms
- RV trabeculations get bigger
- Hyper-reflective moderator band
- Normal LV
What is LV non-compaction?
A genetic cadiomyopathy characterized by prominent trabeculations and deep recesses, most commonly in the LV, which communicate with the ventricular cavity
What sign is seen clinically with LV non-compaction?
Arrhythmias
What is the best way to diagnostically see LV non-compaction? 2
- Contrast may be useful
- MRI better to assess extent of the disease
LV non-compaction occurs when?
During embryology
In terms of LV non-compaction, what supplies blood to the left heart?
Deep intertrabecular spaces from within the Left chamber, this is before coronary arteries have developed in the embryp
In terms of LV non-compaction, Trabeculae normally do what with LV wall?
Compact into the LV wall starting at base and ending at apex
Where is non-compaction seen with LV non-compaction? Why?
Apex, because this is the last area to compact