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Table 2 Zhu’s classification of PLSVC

From: Catheterization in a patient with end-stage renal disease through persistent left superior vena cava: a rare case report and literature review

Types

Characteristics

A

PLSVC drains blood to right atrium via coronary sinus

B

PLSVC drains blood to right atrium via coronary sinus with partial right-to-left shunt

C

PLSVC drains blood to left atrium directly with right-to-left shunt

D

PLSVC is directly connected to left pulmonary vein (coronary sinus absent)