Shared Flashcard Set

Details

cardiomyopathies and prosthetic valves
cardiomyopathies and prosthetic valves
91
Medical
Undergraduate 1
11/22/2013

Additional Medical Flashcards

 


 

Cards

Term
[image]
Definition
drifting closure of AV cusps d/t not enough pressure to keep open during systole
Term
[image]
Definition
ASH
Term
[image]
Definition
midsystolic closure of MV leaflets
Term
List 3 main types of Cardiomyopathy.
Definition

 

Dialated, Hypertrophic and Restrictive

 

Term
What is Dialated Cardiomyopathy also known as?
Definition

 

Congestive Cardiomyopathy

 

Term
What is the most common known reason for DCM?
Definition
CAD
Term
What is the most common reason for DCM not due to CAD? 
Definition
Idiopathic/unknown
Term
What is the #1 reason for a misdiagnosis with DCM?
Definition

 

Enlarged heart on xray

 

Term
When does a DCM manifest when due to pregnancy?
Definition

 

From last month to 5 or 6months post delivery

 

Term
What symptoms do patients with DCM present?
Definition

 

Dyspnea on exertion(most common) and fatigue

 

Term
What signs are present with DCM?
Definition

 

JVD, pitting edema, tachycardia, fine crackles in lungs, grayish skin tone

 

Term
What is the chance that post pardom women have that their EF will return to normal w/DCM?
Definition
50%
Term
What effect does DCM have on EF? 
Definition

 

Usually EF decreases to 35% or below

 

Term
Why does DCM create a favorable environment for thrombus?
Definition
 Globally decreased wall thickening & motion
Term
What M-mode finding with DCM indicate elevated LVEDP?
Definition
B-notch
Term
What is seen on M-mode relating to the aortic valve with DCM?
Definition

 

Drifting closure of cusps

 

Term
What is “Smoke”?
Definition

 

spontaneous contrast-swirling of blood cells in ventricles where blood is not being moved(usually abnormal)

 

Term
What is the #1 risk factor w/Takotsubo Cardiomyopathy?
Definition

 

Mental and/or physical stress

 

Term
Who does Takotsubo Cardiomyopathy most commonly affect?
Definition

 

Middle aged women

 

Term
What 2D findings do you see with Takotsubo?
Definition

 

Apical and basal ballooning of LV

 

Term
Define Restrictive Cardiomyopathy.
Definition

 

Primary myocardial disease in which ventricular walls become stiffened which results in decreased LV filling.

 

Term
RCM is also known as?
Definition

 

Infiltrative Cardiomyopathy

 

Term
What is the #1 cause of RCM?
Definition
Amyloidosis
Term
What are  signs and symptoms of amyloidosis?
Definition

 

#1 inc RA pressures, JVD, Hepatomegally/Pulsative liver, Periferal edema

 

Term
How are all RCMs diagnosed? 
Definition
Biopsy
Term
Are RCMs systolic or diastolic problems?
Definition

 

Diastolic

 

Term
What is a good way to remember the etiology for Tacotsubo
Definition

 

Middle aged women with stress eat a lot of taco’s and subs J

 

Term
What do onset symptoms of Takotsubo resemble?
Definition
Acute myocardial infarction
Term
What treatment is available for Amyloidosis?
Definition
No proven treatment available
Term
What does Sarcoidosis mimic?
Definition
Constrictive pericarditis
Term
What are sonographic findings for sarcoidosis?
Definition
Localized thinning and dilaton of LV, appear aneurismal, abnormal diastolic and systolic function, bilateral atrial enlargement.
Term
Which RCM is due to increased iron deposits in cell tissue?
Definition
Hemocromatosis
Term
Which RCM is due to chronic elevation of eosinophils?
Definition
Loffler’s or endomyocardial fibrosis
Term
This RCM is a left sided inherited disorder that is characterized by a diffuse fibrosis or hyperplasia of endocardium in infants and children
Definition

 

Endomyocardial fibroelastosis

 

Term
Which RCM causes fibrosis of the TV and MV?
Definition

 

Endomyocardial fibrosis/loffler’s

 

Term
What is the treatment for hemochromatosis?
Definition
Repeated phlebotomy
Term
What is the most common etiology for HCM?
Definition
High BP
Term
What is the main concern for HOCM?
Definition
Possible Sudden Death
Term
Most common etiology for HOCM?
Definition
Genetic
Term
What is the usual EF for HOCM? 
Definition
>75%
Term
What is the venture effect caused by?
Definition

 

Thick walls, hyperdynamic LV and small aortic tract, mid systolic closure of AV.

 

Term
What is the best way to tell if an obstruction is present? 
Definition
Doppler
Term
What is seen on EKG with HOCM?
Definition
Tall QRS
Term
What is ASH and what general Cardiomyopathy is it seen with?
Definition

 

Asymetrical Septal Hypertrophy, HOCM

 

Term
What is the most common etiology for IHSS?
Definition
Idiopathic
Term
How do you verify IHSS?
Definition
Septal wall 3X thicker than posterior(measure)
Term
What is another name for spade heart
Definition

 

Yamaguchi’s or Apical Hypertrophic CMP

 

Term
What is seen with spade heart?
Definition

 

Thickened apex

 

Term
pulmonary embolism
Definition
a blood clot within the pulmonary system
Term
Virchow's Triad
Definition

Three risk factors for thrombus formation:

Stasis, Endolethial Injury, Hypercoagulability

Term
severe PHTN will develop
Definition
what will happen if there is a >50% decrease blood flow through the pulmonary system?
Term
cyanosis
Definition
which of these is NOT a sign/symptom of pulmonary embolism:  dyspnea, tachycardia, tachypnea, syncope, hypotension
Term
DVT
Definition
what is the most common cause of pulmonary embolism?
Term
McConnell Sign
Definition
regional RV dysfunction showing a hyperkinetic apex with severely hypokinetic mid and basal walls
Term
"Flying W" on A wave
Definition

which of these is NOT a 2D finding for pulmonary embolism: 

 possible RAE, RVH, "D" sign, visualization of thrombus in RA, "Flying W" on A wave, paradoxical septal bounce

Term
Idiopathic
Definition
what is the most common cause of systemic hypertension?
Term
False.  If either # is higher, patient has HTN.
Definition
True or False:  for a patient to be diagnosed with HTN, both the systolic BP must be >140 mmHg and the diastolic BP must be >90 mmHg.
Term
True
Definition
True or False:  LVH >1.3 cm is a typical 2D finding for HTN
Term
Idiopathic
Definition
primary cause of PHTN
Term
fatigue, dyspnea, syncope, cyanosis, hemoptysis
Definition
Name three signs/symptoms of PHTN
Term
right side
Definition
Which side of the heart are the effects of PHTN primarily seen on?
Term
"D" sign
Definition
signature sign for PHTN on 2D
Term
True
Definition
True or False:  decreased or absent "A"wave on PV M-Mode is also known as "Flying W"?
Term
stenosis, regurgitation, or infection
Definition
What are the 3 reasons why a native valve would be replaced?
Term
all prosthetic valves
Definition
reduces orifice size and is considered a man-made stenosis
Term
Medical Device Card
Definition
lists all the information pertaining to a patient's valve replacement including its size
Term
False
Definition
True or False:  paravalvular leaks are seen around the valve perimeter?
Term
heterograft or xenograft
Definition
names for tissue/animal prosthetic valves
Term
degeneration
Definition
What is the main mechanism of failure for tissue valves?
Term
tissue valves
Definition
Which are more likely to become infected with endocarditis:  tissue or mechanical valves?
Term
True
Definition
True or False:  mechanical valve motion is best assessed by M-Mode to record maximum disk motion?
Term
TEE
Definition
The best tool to assess a prosthetic valve
Term
Stentless Homografts
Definition
What tissue valves appear most similar to native valves?
Term
gradual increase in AI
Definition
What is the most common failure of a Homograft Valve?
Term
Autograft-Ross Procedure
Definition
What is the name of the process where a patient's own PV is used to replace his/her diseased aortic valve?
Term
Porcine Valve
Definition
An animal tissue valve that is treated with gluteraldehyde which helps them last longer
Term
False
Definition
True or False:  a bovine valve is more likely to have the problem of size mismatch?
Term

treated with gluteraldehyde

can be used in mitral, aortic, and tricuspid positions

low thrombogenicity

do not normally leak

durable- last 10 to 15 years

Definition
Name at least 3 characteristics of Porcine Valves
Term

Advantage: unlimited range of sizes

Disadvantage: don't last as long as Porcine Valves

Definition
What is the main advantage and main disadvantage of Bovine Pericardial Valves?
Term
valvular regurgitation or stenosis
Definition
What is the most common method of failure of Bovine Valves?
Term
True
Definition
True or False:  mechanical valves are more appropriate than tissue valves for a young women who don't plan on pregnancy.
Term

more durable than tissue valves

resistant to infection but prone to abcess

can develop Pannus

have small amount of regurge unique to each type

have increased incidence of thrombogenicity

 

Definition
Name at least 3 characteristics of mechanical prosthetic valves?
Term
Ball-in-Cage
Definition
a mechanical valve that has two "U" shaped struts that form a cage around a silastic ball occluder.
Term
ball would swell and freeze in the open(usually) or closed position.
Definition
What is the most common method of failure for the Ball-in-Cage Valve?
Term
Single Disk Tilting Disk Valve
Definition
What mechanical valve was designed to mimic the natural patterns of blood flow?
Term
the struts would tend to fracture due to fatigue
Definition
What is the main problem with the Single Tilting Disk Valve?
Term

60 degree

70 times/minute

Definition
The Single Tilting Disk valve opens at a _________angle and closes shut completely at a rate of ________.
Term
Bi-Leaflet Tilting Disk Valve
Definition
mechanical valve consisting of two semi-circular leaflets that pivot on hinges.
Term
Bi-Leaflet Tilting Disk Valve
Definition
prosthetic valve that provides the closest approximation to central flow achieved in a natural heart valve.
Term
True
Definition
True or False:  as of yet, there is no known failure associated with the bi-leaflet tilting disk valve?
Term

completely

parallel

Definition
The Bi-Leaflet Tilting Disk Valve leaflets swing open _____, ______ to the direction of blood flow.
Supporting users have an ad free experience!