Krabill and Lucas reported a classification of cor triatriatum.
Patient selection: accessory atrial chamber (third atrium, tri-atrium)
Parameters:
(1) number of pulmonary veins entering into accessory atrial chamber
(2) connection of accessory atrial chamber with left atrium
(3) other connections (normal or anomalous)
|
Pulmonary Veins Connected to Accessory Atrial Chamber |
Accessory Atrium Connects with Left Atrium |
Other Connections |
Type |
|
4 |
yes |
none |
A1 (classic) |
|
4 |
yes |
anomalous to right atrium |
A2a |
|
4 |
yes |
some pulmonary venous return enters superior or inferior vena cava |
A2b |
|
4 |
no |
anomalous to right atrium |
B1 |
|
4 |
no |
some pulmonary venous return enters superior or inferior vena cava |
B2 |
|
1 to 3 |
yes |
other pulmonary veins connect to left atrium |
C1a |
|
1 to 3 |
yes |
other pulmonary veins connect to superior or inferior vena cava |
C1b |
|
1 to 3 |
no |
anomalous to right atrium; some pulmonary venous return enters superior vena cava |
C2a |
Specialty: Cardiology
ICD-10: ,
