The Impact of Preoperative Anemia on Postoperative Anemia and Related Nutrient Abnormalities After Bariatric Surgery

Last updated: July 4, 2025
Sponsor: China-Japan Friendship Hospital
Overall Status: Completed

Phase

N/A

Condition

Weight Loss

Anemia

Treatment

N/A

Clinical Study ID

NCT06218953
CJBariatric004
  • Ages 16-70
  • All Genders

Study Summary

This study aims to assess the impact of preoperative anemia status on anemia and related nutrient abnormalities 1 year after bariatric surgery.

Eligibility Criteria

Inclusion

Inclusion Criteria:

  • Patients who underwent bariatric surgery (sleeve gastrectomy and Roux-en-Y gastricbypass)

  • Age between 16 and 70 years

  • Patients who have complete 1-year follow-up data

Exclusion

Exclusion Criteria:

  • Baseline renal failure

  • Vegetarian

  • Postoperative bleeding (it was defined as a drop in hemoglobin levels > 3 g/dL or aconfirmed blood loss requiring treatment after surgery)

Study Design

Total Participants: 400
Study Start date:
September 01, 2017
Estimated Completion Date:
December 31, 2024

Study Description

This study aims to assess the impact of preoperative anemia status on anemia and related nutrient abnormalities (ferritin deficiency, vitamin B12 deficiency, folate deficiency, and low transferrin saturation level) at 1 year after bariatric surgery.

Connect with a study center

  • Yuntao Nie

    Beijing, 100029
    China

    Site Not Available

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