Follow‑up
DVT, SVT
SVT, EVENTS, RECURRENCE, DVT
Follow-up assessments were conducted at the third, sixth, and twelfth month after operation, during which the VCSS socre was obtained to evaluate the postoperative condition of the patients. Doppler ultrasound was used to objectively evaluate the follow-up outcomes, included VV recurrence, SVT formation, and DVT events. For most patients, follow-up was carried with their regular outpatient appointments, and the results were recorded in their outpatient medical records. And for those were not able to return for follow-up, such as those residing too far away from our institution, we conducted phone calls with well-trained physicians to collect the necessary information. We carried the last follow-up in December 2021.