Background The patent foramen ovale (PFO) occluder is a bulky metallic device. Its impact on the normal blood flow at the superior vena cava–right atrial (SVC‐RA) junction is not clear. Methods We examined SVC‐RA junction flow‐pattern using pulsed‐wave (PW) ultrasound Doppler in 21 patients (4 male, aged 52.7 ± 9 years) who underwent PFO device closure 4–120 months previously, in comparison with 21 age‐ and sex‐matched controls (4 male, aged 51 ± 8.5 years) with structurally normal hearts. Results Mean systolic flow velocity at the SVC‐RA junction was 60 ± 11 cm/s in the PFO closure group and 64 ± 17 cm/s in the control group (P = 0.27). Mean diastolic blood flow velocity at the SVC‐RA junction in those groups was 30 ± 8 and 35 ± 9 cm/s, respectively (P = 0.1).The mean systolic wave duration was 439 ± 52 ms in the PFO closure group and 422 ± 67 ms in the control group (P = 0.4). The mean diastolic wave duration was 320 ± 75 and 277 ± 88 ms, respectively (P = 0.12). Conclusion The study results show that transcatheter PFO closure does not affect the normal blood flow at the SVC‐RA junction.