Table 2 Patency parameters of the parallel shunt

Mean duration of follow-up (months)

26.8 ± 8 (22-45)

Median duration of patency (months)

16 (19-9)

PS dysfunctions during follow-up (months)

8 (11.2%)

Number of re-interventions

10

Mean interval of PS to first dysfunction (months)

11.8 ± 7.8

12 months primary patency rate

32/37 (86.4%)

18 months primary patency rate

30/37 (77.7%)

 Thrombosis (n)

5

 PS stenosis (n)

3