Wednesday, September 23, 2015

General Cardiology Guidelines

Link to guidelines for cardiology boards

Echo Guidelines

Here is a link with all the guidelines you need to know for the boards (I have highlighted the important stuff!)
https://drive.google.com/open?id=0B0hWtBiN0PaHSEEzeEpvUGRtSVk

Wednesday, September 9, 2015

Predictors of Adverse Outcomes

Endocarditis
Aortic valve
>10mm vegetation (Increased risk of embolization)
TV- generally good prognosis
Cardiac amyloidosis

DT < 150 ms 
Other less validated markers of worse prognosis: LV wall thickness > 15 mm, RV enlargement

Peripartum Cardiomyopathy
LVEF < 30 %
LVEDD ≥60mm
Elevated troponin
??Abnormal dobutamine stress predicts recurrence
Cardiomyopathy
RV dysfunction
Sphericity index < 0.76 
Diffuse hypokinesis (RWMA more favorable prognosis)
Chemotherapy induced CM (worse prognosis compared with idiopathic)


Pericardiectomy
Post radiation (worst prognosis)
**idiopathic- best prognosis
LV thrombus (risk for embolization)
Large pendulous thrombus (>0.8cm)
Mobile thrombus
Post MV repair
(Risk of SAM)
Co-aptation to septal distance (C-sept) < 2.6 cm Posterior mitral valve leaflet height > 1.5 cm
Anterior leaflet/Posterior leaflet height ratio (AL/PL) < 1 
Aortic Mitral angle < 130 


Thursday, September 3, 2015

Changes seen in rejection post transplant

Impairment of diastolic function:
-          Decrease DT >20%
-          Decrease in IVRT >20%
-          Increase in E velocity
New onset MR
>10% decrease in ejection fraction
Increased wall thickness >4mm (IVS + post wall)
Increased myocardial echogenicity

New/increasing pericardial effusion

Good to know

Angle independent
Speckle tracking
Age independent
Ar-A for LA pressure
Load independent
Dp/dt
Congenital diseases more common in women
PDA
ASD
Ebstein’s
If ASD >15mm on color
Qp: Qs:: 2:1
AV valves seen at same level
Primary ASD
Corrected tGA
Bernoulli’s equation is based on
Law of Conservation of Energy
Continuity equation is based on
Law of Conservation of Mass
Flow across an ASD is determined by
Difference in compliance and capacity of the two ventricles
Holodiastolic flow reversal in the descending aorta seen in
Severe AI
Aorto-pulmonary window
LV apex motion
Counterclockwise
LV base motion
Clockwise
Size of vegetations detected
TTE 5mm
TEE 1mm
Rupture of coronary sinus aneurysms
            
            Right
            Left
            Non


RV
LA
RA

Named Findings



Saw tooth pattern on Doppler
Co-arctation of aorta
Broken ring
Anomalous drainage to SVC
Popcorn thrombus
RA thrombus (multilobulated)
LVOT goose neck deformity
AV canal defects
Pear shaped aorta
Erlenmeyer deformity
Marfan’s
Charcoal heart
Melanoma metastases
Keshan disease
Se deficiency
Seagull sign
Restricted anterior leaflet in functional MR
Tear drop heart
Apical view in congenital absence of pericardium (elongated atria, widened ventricles)
Gerbode defect
Communication between RA and LV

Best TTE views

MV prolapse
PLAX
SAM
PLAX
Abnormal insertion of anterior mitral leaflet
PLAX
Sinus venosus ASD
Subcostal 4C
Inlet VSD
Apical 4C
RUPV
Apical 4C
PDA flow
High left PSAX
Aortic valve gradient/flow
A5C/ Apical long (3C)
Pulmonary valve flow
Basal PSAX (TEE: Aov SAX, transgastric 70 degrees)
Superior Vena Cava
Suprasternal notch
LAA
Apical 2 chamber (on TTE)
Left persistent superior vena cava
Left supraclavicular view
MV cross sectional area (annulus diameter)
Apical long (3C)
Suspected paravalvular MR
PLAX
Aortic root abscess
PSAX
MV Leaflet Tips
LV dimensions (PLAX)
Mitral inflow for diastology assessment (A4C)
PHT for MS (A4C)
Mitral annulus
A wave duration (for Ar-A calculation)
CW for volume/flow rate measurement through the MV
AV optimization
LVOT diameter
Within 1cm of AV annulus
PVF
Place sample volume 1cm in to PV
Atrial volumes
A4C

Cannot Use (Limitations of echocardiographic parameters)

Mitral E/DT/A
More than mild MS
More than mild MR
Hypertrophic cardiomyopathy
Propogation Velocity (Vp)
LVH (falsely fast)
Small LV cavity
May be normal in restrictive cardiomyopathy
Normal EF
E/A
Normal EF
Mitral stenosis
Prosthetic valves
e'
MAC
Prosthesis/surgical rings
Mitral stenosis
Constrictive pericarditis
Regional wall motion abnormalities
Hepatic Vein Flow
TS
Transplant patient
High degree AV block
Pericardial compression syndromes
Dp/dt
Severe MR
Mahan’s Equation (for pulmonary hypertension)
HR must be 60-100bpm
2 chamber view (TTE)
VC measurements in MR (parallel to line of co-aptation, shows wide VC even in mild MR)