Cardiac Flashcards
what is the RA defined by?
IVC
what imp structures are in the RA?
- crista terminalis
- Eustachian valve
eustachian valve
-valve of IVC
chiari network
Eustachian valve (IVC) trabeculated appearance
coronary sinus route
AV groove –> RA
what defined right Vt?
moderator band
TV vs MV
TV papillary m inserts on septum. No fibrous conn btw TV and P
signs of LA enlargement
double density (direct) splaying carina (indir) walking man sign (indir)
walking man sign
pst displacement left main stem bronchus on lateral radiograph –> upside down V w/ intersection of right bronchus
MV
-papillary m inserts on lateral/pst walls and apex left Vt (not septum)
echogenic focus in LV
- calcified papillary m
- resolve by 3rd TM
- 13% ass w/ DS
lipomatous HTr interatrial septum
- dumbbell/bilobed, SPARES F.O.
- obese, elderly
- asyx (supraVt arryth)
- brown fat –> HOT on pet
multiple interatrial lipomas
TS
interatrial fatty lesions
- lipomatous HTr interatrial septum-dumbbell, spares f.o.
- lipoma- encapsulated, does not spare f.o
- both PET-HOT
interatrial lipoma
- encapsulated
- normal fat signal on MR
- pet hot
coronary cusps
R, L, non (pst)
right coronary branches
- conus (ant), 20-30% from aorta–> RVOT
- SA (pst)
- acute marginal–> RV free wall
- AVN-junction of av/iv
- PDA (65-80%)–> pst IV septum
- PLA–> pst LV
how often does RCA perfuse SA and AV node?
SA-60%
AV-90%
dominance
R (85%)-PDA, PLA from RCA
L (7%)-PDA, PLA, AVN from left CX
co (7%)-PDA from RCA, PLA from left CX
order of obtaining chamber views
- axial –> 2 chamber/vertical long axis –> 4 chamber view/horz long axis. –> short axis
- 3 chamber/LVOF/apical long axis view
dividing anomalies of coronary arteries
org, course, termination
benign anomalies of coronary artery
does not course btw aorta and pulmonary a
-retroaortic, prepulmonic, septal
anomalies of coronary arteries that are always malignany
arise from pulmonary artery
-ALCAPA (bland-white-garland syndrome) > ARCAPA
potentially malignant anomalies of coronary arteries
- LCA from RCS
- RCA from LCS
- LCx or LAD from RCS
- a from NCS
LCA branches
- btw PA and LAA
- LAD, Lcx, ramus (15%)
- LAD–> ant IV septum. Diagonal –> anterolat wall. Septal –> septum
- Lcx –> AV groove. OMA –> pstlat LV
bland white garland syndrome
ALCAPA
compl malignant anomalous courses of CAs. Rx.
- sudden cardiac death w/ exercise
- Rx= surgical bypass
Mx ALCAPA/ARCAPA
- children: direct implantation of anomalous CA
- adults: bypass
pres ALCAPA/ARCAPA
85% CHF ~2 mo old
intramural course of coronary artery-app, compl, mx
- short segm course through aortic wall (slit-like)
- SCD
- mx=
- intramural coronary a bypass, reimplantation
- unfooring
myocardial bridging-MC location, syx, mx,
- midLAD
- asyx; angina, MI, dead-(+) during systole and w/ depth
- dx-stress test
- mx-BB, CCB, PCI, sx (unroofing, myotomy, CABG)
MC (and most serious) malignant org
-interarterial LCA from RCS
mx interarterial LCA from RCS and RCA from LCS
- left: repair
- right: repair if syx
mcc’s SCD
1) hypertrophic cardiomyopathy
2) interarterial LCA from RCS
types ALCAPA
1) infantile
2) adult
coronary artery steal syndrome
ALCAPA
-reversed flow in LCA as P decrease in pulmonary circulation
ALL OF THE CA ANOMALIES to consider
- benign-retroaortic, prepulmonic, septal
- interarterial LCA from RCS
- IA RCA from LEC
- ALCAPA
- ARCAPA
- intramural course
- myocardial bridging
CA aneurysm-size, causes
- 5x
- MC-ather, Kawasaki in kids, cath
coronary fistula
- btw CA and cardiac chamber or GV
- RCA –> r heart –> big, dilated CAs (coronary aneurysms)
main people who get coronary CT
1) low risk, atypical
2) anomalies
mx given prior to coronary CT
- bb (HR <60)
- NG
BB CI
- asthma, COPD, 2nd/3rd˚ HB, acute cp, recent cocaine use
* use retrospective gating
NG CI
- hypoTN (<100)
- severe AS
- HOCM
- phosphodiesterase (viagra, sildenafil)
how to quantify velocity of flowing blood
velocity-encoded cine MR/velocity mapping/phase-contrast
Ortner’s Syndrome
hoarseness caused by L recurr laryngeal n ISO LA enlargement
mc cong cardiac abN
- bicuspid (although pres in adulthood)
- VSD
3 types of bicuspid aortic valve
-sub, supra, valvular (90%)
supravalvular AS
williams syndrome
BC AV + CoArc
-turners syndrome
compl BC AV
- AS=mc
- cystic medial necr –> aortic aneurysm, AR
AR causes
- BC AV
- endocarditis
- marfans
- htn induced aortic root dilation
- aortic diss
rheumatic fever heart disease
- group A beta hemolytic strep
- acute-pancarditis
- chronic-inflamm valves –> fibrinoid necrosis in cusps & cords –> valvular/ct thickening, commisure fusion
- stenosis > mixed
- MV > AV (Rare to have isolated AV) > TV > PV
pulmonic stenosis divisions, causes
95% congenital (TOF), usually isolated
- supravalvular (williams)
- valvular-MC. –> Vt Htr. Noonans.
- subvalvular-Alagille syndrome (kids w/ ø bd’s)
AS causes
- htn
- BC AV
- williams syndrome (supravalvular)
BC AV ass
- Turners
- CoArc
- ADPKD
- VSD, PDA
mitral stenosis
-RF MCC
pulm regurg
failure TOF valve sx
-mx: okay if fixed before 150mL end-diastolic
TR
- pulm htn=mc
- endo
- carcinoid
testable pearl re: TR affect on RV
dilation, not Htr
Epstein anomaly-causes, app
- sporadic (mc), moms on Li
- TV hypoplasia, pst leaf displaced apically –> RA+, RV atrialized (-), TR
- “box shape” on cxr
left valvular carcinoid
1) 1˚ bronchial carcinoid
2) R to L shunt
Aortic Arch variants
2:
- bovine (common org left BCA and LCA)-MC branch variant
3:
- Right arch w/ mirror branching (cong heart) or left arch w/ mirror branching
- innominate brachiocephalic
- -pulmonary sling-left pulm artery arises from R
4:
- left arch aberrant right SCA-MC vessel anomaly
- R arch aberrant left SCA
- L vert off the aorta
- double aortic arch (R CCA SCA, L SCA CCA)-MC vascular ring
“mirror branching”
arch relationship to trachea
Right mirror branching vs right arch w/ aberrant subclavian
- mirror: subclavian arise from FRONT of arch
- subclavian-back of arch
vessels off double aortic arch
from R–> L: R CCA –> L SVA –> R SVA –> L CCA
R arch with mirror branching-ass
- asyx
- stronger ass w/ Truncus BUT TOF MC overall
- 90% w/ RAMB have TOF (6% truncus)
- pts with truncus- 33% MIRA, 25% TOF
what completes the ring in right arch L SVA
lig arteriosum around trachea
L arch aberrant R CVA
- dysphagia lusorum
- divertiulum kommerell
SS phenomenon vs syndrome
syndrome=cerebral ischemic symptoms
causes SS phenom/syndrome
atherosclerosis 98%
-Takayasu, radiation, preductal aortic coarctation, black-Taussig Shunt
heart tumors in kids
1) rhabdomyoma- MC. Hamartoma. TS. LV.
- those NOT ass w/ TS less likely to regress
- T2+
2) fibroma-2nd MC. IV septum.
- Dark. enh+++ (and delayed)
heart tumors adults
- mets- MC. pericardium.
- angiosarc-mc 1˚ mal. RA + pericardium
- big bulky, ugly
- “sunray”-enhancement along epicardial vess
- myxoma-mc 1˚ tumor. LA on interatrial septum, prolapse thru MV.
metastatic involvement of heart
pericardium (effusion, ln)
-Melanoma Myocardium
mc met to heart
lung
myxoma ass
MEN syndrome, Blue Nevi (Carney complex)
Aunt Minnie congenital heart appearances: egg on string, snow man, boot shaped, figure 3, box shaped, scimitar sword
- transposition
- TAPVR
- TOF
- CoA
- Ebstein
- PAPVR w/ hypoplasia
big box on cxr
-ebsteins
infantile hemangioendothelioma
vein of Galen malformation
6 T’s of cyanosis
TOF TAPVR Transposition Truncus TA
non-cyanotic
ASD VSD PDA PAPVR Aortic CoA (adult type-post ductal)
systematic approach to cong heart dx:
cyanotic or not (they must tell you)
R vs L arch
-R arch –> pulm vasc: (+) w/ truncus, (-) with TOF
- L arch–> Heart size
- massive (ebsteins or pulm atresia w/o VSD), non cardiac (infantile hemangioendothelioma, v of Galen malformation)
- Normal size: pulm blood flow
- (+) TAPVR, D transposition, Truncus, Single Vt
- (-) TOF, tricuspid atresia, Ebsteins
CHF in newborn
- TAPVR (infra cardiac type III)
- congenital AS or MS
- left sided hypoplastic heart
- cor triatritum
- infantile (pre-ductal) CoA
survival dep on admixture
- TAPVR (PFO)
- Transposition
- TOF (VSD)
- TA (VSD)
- hypoplastic Left heart-ASD (or large PFO) + PDA
small heart ddx
- adrenal insufficiency (Addisons)
- cachectic state
- constrictive pericarditis
VSD img
- big heart (splaying carina), inc vasc, small aortic knob
- membranous MC
- 70% small ones close spon’t
- outlet subtypes (infundibulum) must be repaired as R coronary cusp prolapses into defect
PDA
1) prematurity
2) maternal rubella
3) cyanotic heart disease
PDA closure
functionally 24 hr
anatomically 1 mo
PDA img
-big heart, big vasc, ductus bump
ASD sinus venosus association
PAPVR
types of asd
- primum, av canal, sinus venosum
- secundum-MC
which asd will not close via closure device?
- primum (too close to valve tissue)
- AV canal
cong heart dx most strongly ass w/ downs?
AV canal (primum)
unroofed coronary sinus
- 2 way flow
- paradoxical emboli and chronic R heart volume overload
PAPVR
1 of 4 veins draining into RA
-ASD (secundum, sinus venosum)
PAPVR + hypoplasia
scimitar
TAPVR
4 pulm v–> right heart
- big heart, big vasc (type III=newborn CHF)
- large PFO (required for survival.) ASD less common
- asplenia
TAPVR types
1) Supracardiac-MC. Snowman (S for S)
2) Cardiac-2nd MC
3) Infracardiac-v’s drain below diaphragm (hepatic or IVC)
why does type 3 TAPVR give newborn CHF?
veins draining to IVC/hepatic v’s obstructed on way through diaph
asplenia and cong heart disease stats
- 50% asplenia have cong heart dx.
- Of these, ~100% TAPVR and 85% additional endocardial cushion defects
Transposition of GV-what defines transposition, what defines D vs L type? Ass?
- transposition: AV ant to PV
- D vs L- AV to right vs L of PV
- VSD (mc), PDA (D-type), ASD
- D type-Vt/vess CONCORDANCE. PDA+ (nec to live)
- L type= DISCORDANCE: LA–> RV –> aorta (congenital correction), no PDA
- L type Lucky enough to Live
Ass: VSD (40%), supra or subvalv stenosis (30%)
D type transposition
- defined by aorta R of pulm A (like normal) but is ANT, not normal pst
- egg on a shell
- rx-inter-atrial baffle (mustard/senning procedure)
- classic draped look
MCC of cyanosis during first 24 hrs
transposition
MC cyanotic heart disease
tetralogy of fallot (TOF)
4 findings of tetralogy of fallot. What makes a pentralogy? Ass?
1) VSD
2) RVOT (due to infundibulum hypoplasia)
3) overriding aorta
4) RV Htr-determines severity
* pentralogy if ASD
* right arch very likely (1/4)
Rx TOF
- surgical
- Blalock-Taussig (shunt procedure)-if inoperable or bridge
- MC compl=PV regurg