Right Heart Flashcards

1
Q

RV Anatomy

3 walls of RV?

A

anterior, inferior, septal

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2
Q

RV Anatomy

Inlet (*route/entrance) contains….

A
  • TV
  • chordae tendineae
  • papillary muscles
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3
Q

RV Anatomy

apical (inferior surface) section of thr RV has…

A
  • apical endocardium/apical trabecular
  • trabeculae carneae
  • supraventricular crest (a prominent trabecula) separates the trabeculated inferior ventricle from smooth wall of RVOT
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4
Q

RV Anatomy

There are ____ pap muscles

A

3

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5
Q

RV Anatomy

anterior pap muscle is _____, and with chordae tendineae, it attaches to _____ & ______ cusps

A

largest

anterior/posterior

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6
Q

RV Anatomy

posterior pap muscle is _____, and with chordae tendineae, it attaches to _____ & ______ cusps of TV

A

smallest

posterior

septal

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7
Q

RV Anatomy

smooth RVOT up to the PV called

A

infundibular or outlet

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8
Q

Abnormal RV Size

RV basal (base/RVD1)

A

4.2 cm

> 4.0 cm

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9
Q

Abnormal RV Size

RV mid (RVD2)

A

> 3.5cm

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10
Q

Abnormal RV Size

RV longitudinal (RVD3)

A

> 8.6 cm

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11
Q

Abnormal RV Size

RVOT PLAX proximal

A

> 3.3 cm

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12
Q

Abnormal RV Size

RVOT PSAX distal

A

> 2.7 cm

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13
Q

Abnormal RV Size

RV wall thickness

A

> 0.5 cm

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14
Q

RV Area

Manual tracing of RV endocardial border from the lateral tricuspid annulus along the free wall to the apex and back to the medial tricuspid annulus, along the interventricular septum at _______ and at ________

A

end-diastolic

end systole

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15
Q

RV Area

_____, ______, and ______ are included in the cavity of RV, therefore do not trace them when assessing EDA

A

trabeculations

papillary muscles

moderator band

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16
Q

RV Linear Dimensions: Inflow

maximal transversal dimension in the basal one third of RV inflow at end-diastole in the RV- focused view

A

Basal RV linear diameter (RVD1)

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17
Q

RV Linear Dimensions: Inflow

transversal RV dimension in the middle third of RF inflow, approximately halfway between the maximal basal diameter and the apex, at the level of papillary muscles at end diastole

A

Mid-cavity RF linear diameter (RVd2)

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18
Q

RV Linear Dimensions: Outflow

linear dimension measured from the anterior RV wall to the i_nter-ventricular septal-aortic junction_ (in parasternal long-axis view) or to the aortic valve (in parasternal short-axis) at end-diastole

A

Proximal RV outflow diameter (RVOT Prox)

*>3.3cm indicates enlargement

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19
Q

RV Linear Dimensions: Outflow

linear transversal dimension measured just proximal to the pulmonary valve at end-diastole.

A

Distal RV outflow diameter (RVOT Distal)

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20
Q

Which wall?

A

inferior

*Note: facing posterior wall of the heart

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21
Q

Which wall?

A

lateral free wall

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22
Q

Which wall?

red

green

yellow

A
  • red: anterior
  • green: lateral
  • yellow: inferior
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23
Q

Which wall?

red

yellow

A

red: anterior free wall
yellow: inferior free wall

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24
Q

RV Wall Thickness Measurement

Linear measurement of RV free wall thickness (either by M-mode or 2D) performed at ______, below the _______ at a distance approximating the length of anterior tricuspid leaflet when it is fully open and parallel to the RV free wall

A

end- diastole (EDWT)

tricuspid annulus

*note: subcostal view

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25
_RV Wall Thickness Measurement_ \_\_\_\_\_\_\_, ________ and _______ should be excluded
Trabeculae papillary muscles epicardial fat
26
_RV vs LV Comparison_ Structure (wall characteristics)
RV: **thin** compacta, heavily **trabeculated** cavity LV: **thicker** compacta
27
_RV vs LV Comparison_ Shape
RV: Crescentric with triangular LV: Truncated ellipse
28
_RV vs LV Comparison_ EDV
RV: 75 +/- 13 (49 – 101) LV: 66 +/- 12 (64 – 109)
29
_RV vs LV Comparison_ Wall Thickness range
RV: **2-5** LV: **7 - 11**
30
_RV vs LV Comparison_ Pressure
RV: * Systolic: 25 ( 15 – 30) * Diastolic: 4 (1 – 7) LV: * Systolic: 130 (90 – 140) * Diastolic: 8 (5 – 12)
31
_RV vs LV Comparison_ EF
RV: \> 40 - 45 LV: \> 50
32
_RV vs LV Comparison_ Major vector of contraction
RV: **Longitudinal** LV: **Circumferential and Longitudinal**
33
_RV Coronary Artery supply_ Anterior wall is supplied by:
**RCA conus branch & LAD branch**
34
_RV Coronary Artery supply_ lateral wall is supplied by:
RCA marginal branches
35
_RV Coronary Artery supply_ posterior wall &posterior interventricular septum are supplied by:
**PDA (posterior descending artery)**
36
_RV Structure_ \_\_\_\_\_\_\_ surface?
sternocostal
37
_RV Structure_ \_\_\_\_\_\_\_ surface?
Diaphragmatic
38
_RV Structure_
39
RVSP – Right Ventricular Systolic Pressure Equation
**4V2 + RAP** \***RAP** decided by 3/8/15 method \***V** = peak TR velocity jet
40
_RAP 3/8/15 Method_ The IVC size is relatively small (\< 2.1 cm) with normal respiratory response (collapse \> 50%) What is the RAP?
3 mmHg (5 mmHg) normal
41
_RAP 3/8/15 Method_ The IVC size is relative small (\< 2.1 cm) with no IVC respiratory response (collapse \< 50%) What is the RAP?
8 mmHg (6/10 mmHg) intermediate
42
_RAP 3/8/15 Method_ The IVC size is \> 2 cm with respiratory response (collapse \> 50%) What is the RAP?
8 mmHg (10-15 mmHg) intermediate
43
_RAP 3/8/15 Method_ The IVC size is \> 2 cm with no respiratory response (collapse \< 50%) What is the RAP?
15 mmHg (15-20 mmHg) Increased
44
What is Cor Pulmonale?
**Cor Pulmonale** is an increase in bulk of the right ventricle of the heart, generally caused by chronic diseases or malfunction of the **lungs**. This condition can lead to heart failure
45
**Cor Pulmonale**, or **pulmonary heart disease**, occurs in \_\_\_\_\_of patients with chronic obstructive pulmonary disease (COPD)
25%
46
About \_\_\_\_\_of patients diagnosed with cor Pulmonale have COPD
85%
47
\_\_\_\_\_\_\_\_ and _______ are types of COPD
Chronic bronchitis emphysema
48
**\_\_\_\_\_\_\_\_\_ causes the enlargement of the right ventricle**
High blood pressure in the blood vessels of the lungs (**pulmonary hypertension**)
49
Cor pulmonale may also be caused by lung diseases, such as \_\_\_\_\_\_, \_\_\_\_\_\_\_\_\_\_, \_\_\_\_\_\_\_\_\_and \_\_\_\_\_\_\_\_\_.
* **cystic fibrosis:** **a genetic disorder that affects mostly the lungs, but also the pancreas, liver, kidneys, and intestine**. Long-term issues include difficulty breathing and coughing up mucus as a result of frequent lung infections * **pulmonary embolism** * **pneumoconiosis**: a disease of the lungs due to inhalation of dust, characterized by inflammation, coughing, and fibrosis * **muscular dystrophy:** Muscular dystrophy is **a group of diseases that cause progressive weakness and loss of muscle mass**. In muscular dystrophy, abnormal genes (mutations) interfere with the production of proteins needed to form healthy muscle. There are many kinds of muscular dystrophy \***Loss of lung tissue after lung surgery or certain chest-wall disturbances can produce cor pulmonale as well**
50
What is TAPSE ?
**T**ricuspid **A**nnular **P**eak **S**ystolic **E**xcursion TAPSE is measured as the displacement of the lateral tricuspid annulus toward the apex during systole **= RV Longitudinal Systolic Function** **\***By using M-mode, it measures between end-**diastole** and **peak systole.** **In presence of severe TR and normal contractility TAPSE is increased**. In presence of mildly reduced contractility (and severe TR) TAPSE is within the normal range. If _TAPSE is reduced this means that RV longitudinal function is severely impaired._
51
_RV Function Assessment by TDI_ RV Pulsed tissue Doppler S wave
The right ventricular myocardial performance index and tricuspid annulus motion are used in the assessment of _global right ventricular function_ In pulmonary hypertension, _S’ wave assessment may be used for therapeutic efficacy evaluation_. Longitudinal strain reduction indicates an increased risk of vascular events, while an increased value of myocardial performance index is a predictor for a survival in pulmonary hypertension. A decreased S’ wave velocity is associated with limited pulmonary vascular flow in patients with pulmonary embolism
52
“Systolic wave prime” or “S Prime” (Abbreviated to S’ when writing), refers to….
the maximum velocity achieved by the lateral tricuspid annulus during systole = **systolic excursion velocity.** It is a useful index to assess right ventricular function.
53
Why does S' index matter?
S’ is an index that has been shown to correlate with _RV ejection fraction_, and with outcomes in people with RV dysfunction- pulmonary hypertension, pulmonary embolus, and cardiogenic shock.
54
What is normal S'?
RV S’ of more than 10cm/s is considered normal
55
Identify 1 & 2
1. IVCT 2. IVRT \*Note: you can identify by following ECG
56
To obtain S', it is important to differentiate _____ from the S' velocity
IVCT \*increasing sweep speed can help with this
57
What is Global longitudinal strain (GLS)?
**a newly emerging topic which has a significant role in predicting cardiovascular outcomes, compared to Left ventricular ejection fraction (LVEF)**. LVEF is the most extensively used and investigated cardiac pumping function for many decades \*note: Because GLS normally varies with age, sex, and LV loading conditions, defining abnormal GLS is not straightforward. However, in adults, **GLS \<16%** (sic) is abnormal, **GLS \>18% (sic) is normal**, and **GLS 16% to 18% is borderline**. (Editor’s note: GLS is expressed as a negative number
58
What is RIMP ?
**R**ight **v**entricular **I**ndex of **M**yocardial **P**erformance aka: Tei index is an index of global RV performance.
59
RIMP Equation
**RIMP = (IVCT + IVRT) / ET** IVCT = isovolumic contraction time IVRT = isovolumic relaxation time ET = ejection time
60
For RIMP, measure in 2 separate heart beats with similar R-R intervals. Important to note that IVCT and IVRT do not exist in the case of \_\_\_\_\_\_
TR
61
RIMP (Right ventricular index of myocardial performance/ **Tei index)** Equation 2
**RIMP = ( TCO - ET) / ET** \*note: TCO – Tricuspid Closure-Open Time. This is the time between the tricuspid valve opening and closing
62
_RV Function_ Abnormal Threshold **TAPSE**
\< 17 mm \*mean +/- SD = 24 +/- 3.5
63
_RV Function_ Abnormal Threshold **Pulsed TDI S wave (cm/s)**
\< 9.5 cm/s \*mean SD = 14.1 + 2.3
64
_RV Function_ Abnormal Threshold **RV fractional Area change (%)**
\< 35 % \*mean SD = 49 +/- 7 % Fractional area change (FAC) is a measurement that provides an estimate of the global RV systolic function. Remember this is a formula to calculate the % of area change within the RV between diastole and systole. The value provided is a percentage but please do not confuse this with the ejection fraction %
65
_RV Function_ Abnormal Threshold
66
_RV Function_ Abnormal Threshold
67
_RV Function_ Abnormal Threshold
mean +/- SD = 1.4 +/- 0.3
68
_RV Function_ Abnormal Threshold
mean +/- SD = 4/0 +/- 1.0
69
_Hepatic Vein Waveform Assessment_ What can hepatic waveform represent in regard to right heart?
The hepatic vein waveform can be reflective on the severity of TR present. The more severe the regurgitation, the more pulsatile the waveform becomes.
70
When RA pressure rises, HV flow pattern is _______ - systolic wave velocity is _____ diastolic wave velocity
opposite less than \*use PW in HV to confirm elevated RAP
71
_RA Anatomy_
1. SA node 2. Eustachian valve: (EV) is located in the superior portion of the inferior vena cava (IVC) and protrudes into the right atrial cavity. It is considered to be a functional valve in the fetus that helps direct oxygenated blood from the IVC toward the foramen ovale, thereby bypassing the pulmonary circulation. An **embryological remnant** of the inferior vena cava (IVC) valve. It is usually absent or inconspicuous and has no known function in the normal adult 3. Thebesian valve: also known as the **valve of the coronary sinus**, is a fold in the right atrium at the opening of the coronary sinus 4. Pectinate muscle 5. Crista Terminalis
72
_RA Anatomy_
Chiari network
73
What is Chiari network?
The Chiari network is a _congenital remnant_ of the **right valve of the sinus venosus**, which is reabsorbed to varying degrees in utero (in the uterus). **It has been found in 1.3% to 4% of autopsy studies**
74
When Chiari network is seen, there is a greater prevalence of both ______ and _______ with agitated saline contrast.
a patent foramen ovale (PFO) a greater degree of shunting across the PFO
75
_RA Anatomy_ Normal Variants
* **Eustachian valve** * **Chiari network** * **Eustachian ridge** * **Crista terminalis** * **Lipomatous hypertrophy of the atrial septum -** characterized by an infiltration of adipocytes into myocytes of the interatrial septum, sparing the fossa ovalis, which gives a characteristic hourglass-shaped image * **Fatty infiltration of tricuspid annulus**
76
What is ECMO ?
**E**xtra**c**orporeal (situated outside body) **m**embrane **o**xygenation catheters ## Footnote a treatment that uses a pump to circulate blood through an artificial lung back into the bloodstream of a very ill baby. This system provides heart- lung bypass support outside of the baby's body. It may help support a child who is awaiting a heart or lung transplant.
77
_Right Atrial Dimensions and Volume 2D_ Longest plane from Tricuspid valve to superior RA wall (parallel to the IAS)
RA major
78
_Right Atrial Dimensions and Volume 2D_ A mid distance from the middle of RA free wall to the IAS (perpendicular to long axis)
RA minor
79
_Coronary Artery_ anterior wall & inferior wall are supplied by:
anterior: RCA - acute marginal branch inferior: RCA - PDA
80
_Coronary Artery_ anterior wall is supplied by:
RCA - conus branch
81
_Coronary Artery_ anterior wall & RVOT are supplied by:
anterior: RCA - acute marginal branch RVOT: RCA - conus branch
82
_Coronary Artery_ lateral wall & IVS/moderator band are supplied by:
lateral wall: RCA - acute marginal branch IVS/moderator band: LAD
83
assessment of the veins of the heart , right sided chambers and vessels.
**Right Heart Catherization** \*assessment of the venous catheter is accessed from the **left subclavian vein**
84
Assessment of the Arteries of the heart (left sided chambers and vessels)
**Left heart Cath** \*assessment of the arterial
85
maneuvered into position just above the outlet valve on the left ventricle is called…
**angiogram catheter**
86
Indications for right heart cath?
* Heart failure * Acute MI * Acute of chronic pulmonary disease * Congenital heart disease * Complications of transplanted heart * Screening for unspecified respiratory disease * Hypotension * Valvular heart disease * Mechanical complications * Endomyocardial fibrosis ハークシュ!ベラボーめ
87
Pulmonary embolism (PE) is common and often fatal US -250,000 annually Undiagnosed: _____ mortality
30%
88
Symptoms of PE (pulmonary embolism)
dyspnea: difficult breathing chest pain, tachypnea: abnormally rapid breathing hypotension
89
Chronic bronchitis and emphysema are types of …
COPD (chronic obstructive pulmonary disease)
90
\_\_\_\_\_ is the longest plane from TV to superior RA
RA major
91
4 types of foreign bodies that may be possible for patients
* Pacemaker / defibrillator wires * Central venous catheters including dialysis catheters * Extracorporneal membrane oxygenation catheters (**ECMO**) * Atrial septal defect occluder devices
92
4 indications for RH cath
* **Heart failure** * **Acute MI** * **Acute of chronic pulmonary disease** * **Screening for unspecified respiratory disease** * **Hypotension** * **Valvular heart disease** * **Mechanical complications** * **Endomyocardial fibrosis** * **Congenital heart disease** * **Complicationsof** * **transplanted heart**
93
What is RVSP ?
Right Ventricular Systolic Pressure \***RVSP** can be calculated using the simplified Bernoulli equation**: 4V2 + RAP, where V = peak TR velocity jet.**
94
When measuring RV wall thickness, avoid……
**Trabeculations** **papillary muscles** **moderator band**
95
TAPSE value
96
What are the 2 surfaces of RV?
**1. Sternocostal surface** **2. Diaphragmatic surface**
97
A large pulmonary embolism may lead to chronic Cor pulmonade T or F ?
F **A large pulmonary thromboembolism (blood clot) may lead to acute cor pulmonale.**
98
Major vector of contraction RV
longitudinal
99
Pulmonary Emboli echo findings?
1. **Visualization of thromboemboli on right side of heart or pulmonary artery** 2. **RV dilation** 3. **RV dysfunction (global or regional)** 4. **Normal or Hyperdynamic LVFX** 5. **Ventricular septal flattening and paradoxical septal motion** 6. **PA dilatation** 7. **Increased TR or PR** 8. **Increased PS pressure**
100
What is McConnell sign?
McConnell's sign is **a distinct echocardiographic feature of acute massive pulmonary embolism**. It is defined as a regional pattern of right ventricular dysfunction, with akinesia of the mid free wall and hyper contractility of the apical wall. The McConnell’s sign is defined as relative **hyperkinesis of the apex** of the right ventricle (RV) relative to the RV free wall in the setting of RV strain. (aka enlargement McConnell's sign is considered as a specific sign of APE [https://blog.5minsono.com/mcconnells-sign/](https://blog.5minsono.com/mcconnells-sign/)
101
What is 60/60 sign?
**acceleration time is significantly decreased (\< 60 msec) + TR gradient \< 60 mmHg** The **60/60 sign** in echocardiography refers to the coexistence of a truncated (shortened in duration or extent) RVOT acceleration time (AT \<60 ms) with a pulmonary arterial systolic pressure (PASP) of less than 60 mmHg (but more than 30 mmHg). In the presence of [right ventricular failure](https://radiopaedia.org/articles/right-ventricular-dysfunction?lang=us), it is consistent with an acute elevation in afterload, commonly due to an [acute pulmonary embolism](https://radiopaedia.org/articles/pulmonary-embolism?lang=us). \*note: The **PASP is equivalent to RVSP** in the absence of pulmonary outflow obstruction
102
_WIGGER’S DIAGRAM_ Where does the LV volume drop most?
during ventricular systole
103
_WIGGER’S DIAGRAM_ Where does the LV pressure drop the fastest?
end of ventricular systole
104
_WIGGER’S DIAGRAM_ Where does LA pressure increase the most?
end of ventricular systole
105
_WIGGER’S DIAGRAM_ Where does LV pressure increase the fastest?
during the IVCT
106
_WIGGER’S DIAGRAM_ When does MV close?
1 creates S1 sound at the IVCT
107
_WIGGER’S DIAGRAM_ When does AV open?
2 at the beginning of systole (end of IVCT)
108
_WIGGER’S DIAGRAM_ When does AV close?
**3** creates S2 sound at the beginning of IVRT dicrotic notch The dicrotic notch is universally associated with the **closure of the aortic valve** and taken as a marker of the end of systole and the start of diastole in the arteries the result of **a short period of backward flow of blood immediately before the aortic valve closes**
109
_WIGGER’S DIAGRAM_ When does MV open?
4 the end of IVRT early ventricular diastole
110
What doe the diagram represent?
MS \*note: scale: 100 higher = MV
111
What doe the diagram represent?
TS \*note: scale: 20
112
In atrioventricular stenosis, __________ increases causing a pressure gradient to persist throughout ventricular diastole. (shaded area)
the atrial pressure
113
What does the diagram represent?
AS \*note: shaded area = **PG**
114
What doe the diagram represent?
PS
115
In semilunar valve stenosis, the _________ increases creating a systolic pressure gradient between the ventricle and great artery. (see shaded area in diagram)
ventricular systolic pressure
116
What doe the diagram represent?
AR
117
What doe the diagram represent?
PR
118
In semilunar valve regurgitation, __________ pressure decreases throughout diastole, thus decreasing the diastolic pressure gradient between the artery and ventricle
the arterial diastolic
119
What doe the diagram represent?
MR
120
What doe the diagram represent?
TR
121
In atrioventricular regurgitation, the atrial pressure tracing will reflect an increase during ventricular systole of the atrial v wave T or F ?
T \***V wave** represents the passive filling before the opening of the mitral valve. This will occur directly with T-wave
122
assessment of the venous catheter is accessed from the \_\_\_\_\_\_\_\_\_
left subclavian vein
123
What are the 3 structures unique to RV?
* supraventricular crest (crista supraventricularis) * moderator band * prominent trabeculamtions
124
In an adult, the volume of RV is larger than the volume of LV, whereas RV mass is about one sixth that of the LV. T or F ?
T
125
The main driving force of the LV comes from a layer of circumferential constrictor fibers that act to reduce ventricular diameter. The RV lacks these fibers and thus must rely more heavily on ______ shortening than the LV
longitudinal