Table 1 Patients’ background and surgical outcomes (urachal sinus)

Patients’ background

Age (year)*

6.5 (3-9.5)

Sex (male), n (%)

8 (80%)

Preoperative imaging

Only at the umbilicus

5

Continue caudally from the umbilicus,

but not continue toward the bladder apex

5

Surgical outcomes

Approach

Trans-umbilical approach (10 cases)

Operation time (min)*

50 (40.5–64)

Hospitalization (postoperative day)*

1 (1–2)

Balloon (postoperative day)*

0 (0–0)

Complications, n (%)

0 (0)