Wk 2 Terry Reynolds *MR/MS Flashcards
Two-dimensional echocardiographic findings for rheumatic mitral stenosis
include all the following EXCEPT:
A. Hockey -stick appearance of the anterior mitral valve leaflet
B. Increased left atrial dimension
C. Reverse doming of the anterior mitral valve leaflet
D. Thickened mitral valve leaflets and subvalvular apparatus
C. Reverse doming of the anterior mitral valve leaflet
A Doppler mean pressure gradient across a stenotic mitral valve of 12 mm HG
is obtained. The severity of the mitral stenosis is:
A. Mild
B. Moderate
C. Moderately severe
D. Severe
D. Severe
Mitral stenosis is considered to be severe by all the following criteria EXCEPT:
A. Mean pressure gradient ≥ 12 mmHg
B. Mitral valve area <1.0 cm2
C. Mitral valve Doppler A velocity > 1.3 m/sec
D. Pressure half-time > 220 msec
C. Mitral valve Doppler A velocity > 1.3 m/sec
Secondary echocardiographic/Doppler findings in patients with rheumatic
mitral stenosis include all the following EXCEPT:
A. Abnormal interventricular septal wall motion
B. Increased right heart dimensions
C. Increased tricuspid regurgitant jet velocity
D. Left ventricular dilatation
D. Left ventricular dilatation
The Doppler signal of aortic insufficiency may be differentiated from the Doppler signal of mitral stenosis by the following guideline:
A. If the diastolic flow pattern commences before mitral valve opening, then the signal is due to aortic insufficiency
B. If the diastolic flow pattern commences after mitral valve opening, then the signal is due to aortic insufficiency
C. The Doppler flow velocity pattern of mitral valve stenosis is laminar, while the Doppler flow velocity pattern of aortic insufficiency is turbulent
D. Since both mitral valve stenosis and aortic insufficiency are diastolic, it is not possible to differentiate the Doppler flow velocity patterns.
A. If the diastolic flow pattern commences before mitral valve opening, then the signal is due to aortic insufficiency
Low voltage of the QRS complex throughout the electrocardiogram is often found in:
A. Constrictive pericarditis
B. Mitral stenosis
C. Pericardial effusion
D. Pleural effusion
C. Pericardial effusion
- The Doppler hemodynamic parameters that should be evaluated inpatients with rheumatic mitral stenosis include all the following EXCEPT:
A. Mitral valve area
B. Pressure half-time
C. Pulmonary artery pressure
D. Regurgitant fraction
D. Regurgitant fraction
- A possible pitfall in the pressure half-time (PHT) method of assessing the severity of mitral stenosis is concomitant:
A. Aortic insufficiency
B. MR
C. Pulmonary insufficiency
D. TR
A. Aortic insufficiency
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Congestive heart failure in a patient with significant mitral regurgitation occurs because of increased pressure in the:
A. Left atrium
B. Right atrium
C. Right ventricle
D. Aorta
A. Left atrium
The left atrial cardiac catheterization pressure tracing in a patient with significant mitral regurgitation may demonstrate an increase in the:
A. “a” wave
B. “v” wave
C. “x” wave
D. “y” wave
B. “v” wave
*Note: The v-wave represents the passive filling before the opening of the mitral valve. This will occur directly with T-wave.
The y-descent represents the opening of the mitral valve and the rapid filling of the ventricle from the atrium.
Diastolic mitral regurgitation is associated with:
A. Flail mitral valve
B. Mitral valve prolapse
C. Severe aortic insufficiency
D. Severe tricuspid regurgitation
C. Severe aortic insufficiency
In patients with mitral regurgitation, cardiac catheterization measurements include all the following EXCEPT:
A. Left ventricular systolic/diastolic pressure
B. Mitral valve area
C. Pulmonary artery pressures
D. Pulmonary capillary wedge pressure
B. Mitral valve area
*MVA is an assessment for MS not MR
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A heart sound associated with significant chronic pure mitral regurgitation is:
A. Loud S1
B. Fixed split S2
C. S3
D. S4
C. S3
*The third heart sound (S3), also known as the “ventricular gallop,” occurs just after S2 when the mitral valve opens, allowing passive filling of the left ventricle.
The S3 sound is actually produced by the large amount of blood striking a very compliant left ventricle.
CLINICAL PEARL: A S3 heart sound is produced during passive left ventricular filling when blood strikes a compliant LV.
CLINICAL PEARL: A S3 heart sound is often a sign of systolic heart failure, and also present in patients with: MR, AI, VSD< and PDA.
However it may sometimes be a normal finding i.e children, pregnant women, and trained athlete.
A S3 can be an important sign of systolic heart failure because, in this setting, the myocardium is usually overly compliant, resulting in a dilated LV.
An S2 that is widely split in both inspiration and expiration (fixed split S2) is a feature of right ventricular volume overload lesions, most commonly atrial septal defect. This feature can also occur in patients with total or partial anomalous pulmonary venous return or large arteriovenous malformations
The fourth heart sound, S4, also known as ‘atrial gallop’ results from the contraction of the atria pushing blood into a stiff or hypertrophic ventricle, indicating failure of the left ventricle.
A cardiac catherization technique used to determine the severity of mitral regurgitation is:
A. Cardiac fluoroscopy
B. Coronary arteriography
C. Left ventriculography
D. Supravalvular angiography
C. Left ventriculography
Possible complications of acute, severe mitral regurgitation include:
A. Syncope
B. Hemoptysis
C. Pulmonary edema
D. Systemic embolization
C. Pulmonary edema
Chronic mitral regurgitation results in all the following EXCEPT:
A. Left atrial enlargement
B. Left ventricular enlargement
C. Left ventricular volume overload pattern
D. Mitral annular calcification
D. Mitral annular calcification
Possible etiologies for mitral regurgitation include all the following EXCEPT:
A. Mitral annulus calcification
B. Mitral valve endocarditis
C. Papillary muscle dysfunction
D. Pulmonary hypertension
D. Pulmonary hypertension
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Possible electrocardiographic findings for patients with significant mitral regurgitation include all the following EXCEPT:
A. Left atrial enlargement
B. Left ventricular hypertrophy
C. Right atrial enlargement
D. Right ventricular hypertrophy
C. Right atrial enlargement
In patients with significant mitral regurgitation, the isovolumic relaxation time may be:
A. Increased
B. Decreased
C. Affected by respiration
D. Unaffected
B. Decreased
The effects of chronic mitral regurgitation on interventricular septal motion include:
A. Akinesis
B. Dyskinesis
C. Hyperkinesis
D. Paradoxical motion
C. Hyperkinesis