Echo 530

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Define: Morphologic

form and structure of organ
Define: Functional

function or job of organ
Morphological RV normal characteristics: (5)
- triangle shape
- course trabeculations
- attach pap to IVS
- moderator band
- trileaflet valve
morphologic LV characteristics are: (4)
- conical shape
- smooth interior surface
- 2 clearly defined pap muscles
- bileaflet valve (bicuspid)
Morphologic RA characteristics are:
- drain coronary sinus, IVC, SVC
- Larger appendage than LA
- Could drain some / all PV (anomalous PV drain)
Morphologic LA characteristics include:
- doesn't drain any systemic veins
- drains ALL pulmonary veins
Name 2 stable anatomical relationships in CHD:
- 1. visceroatrial situs
- 2. relationship of AV valves & ventricles
Define: atrioventricular alignment

describes which atrium opens to which ventricle
Define: Concordance
- RA opens into RV
- LA opens into LV
Define: Discordance
- RA opens into LV (through MV)
- LA opens into RV (through TV)
Cardiac Positions:
Lie in Rt Chest =
Lie in Lt Chest =
Lie in Midline =
Situs Solitus =
Situs Inversus =
- Dextrocardia
- Levocardia
- Mesocardia
- Normal lie
- Rt-->Lt position of unpaired organs of body (dextrocardia)
Cardiac situs is determined by the position of ________________ because they MC consistant relation to situs of viscera.

atria
3 causes of dextrocardia are:
- 1. mechanical - dextroposition - heart rt chest; apex pts left
- 2. situs inversus - dextrocardia - rt chest; apex rt
- 3. early fetus - dextroversion - lt chest; apex pt rt
Levoversion of situs inversus =

opposite of dextroversion of situs solitus

right chest; apex pt left
Mesocardia =

midline arrest of normal cardiac rotation in situs solitus or situs inversus
How does one begin a pediatric echo?

subcostal
Define: Situs

normal or original position, as of a body organ or part

Author

lstaal1

22028

Card Set

Echo 530

Description

Abnormal Cardiac Chambers

Updated

2010-06-04T20:27:16Z