Table 2 Shape of the vascular ring and its distance to the trachea and esophagus
Types of vascular rings | The shape of the vascular ring | The composition of the vascular ring | Its distance to the trachea and esophagus(last check-up before birth), |
|---|---|---|---|
LAA-ARSA | C | ARSA,LAA | III(240cases) |
RAA-MIRROR-IMAGE BRANCHING | U | RAA,LDA | I(1case),II(17cases),III(37cases) |
RAA-ALSA | U | RAA,LDA | I(5cases),II(17cases),III(90cases) |
DAA | 0 | R-ARCH,L-ARCH | I(4cases),II(3cases) |
PULMONARY ARTERY SLING | 入 | LPA-Sling | I(4cases) |