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

NCT ID: NCT06218953

Last Updated: 2025-07-09

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

400 participants

Study Classification

OBSERVATIONAL

Study Start Date

2017-09-01

Study Completion Date

2024-12-31

Brief Summary

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

Detailed Description

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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.

Conditions

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Anemia Bariatric Surgery

Study Design

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Observational Model Type

COHORT

Study Time Perspective

OTHER

Eligibility Criteria

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Inclusion Criteria

* Patients who underwent bariatric surgery (sleeve gastrectomy and Roux-en-Y gastric bypass)
* Age between 16 and 70 years
* Patients who have complete 1-year follow-up data

Exclusion Criteria

* Baseline renal failure
* Vegetarian
* Postoperative bleeding (it was defined as a drop in hemoglobin levels \> 3 g/dL or a confirmed blood loss requiring treatment after surgery)
Minimum Eligible Age

16 Years

Maximum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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China-Japan Friendship Hospital

OTHER

Sponsor Role lead

Responsible Party

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Yuntao Nie

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Yuntao Nie, M.D.

Role: PRINCIPAL_INVESTIGATOR

China-Japan Friendship Hospital

Locations

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Yuntao Nie

Beijing, , China

Site Status

Countries

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China

Other Identifiers

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CJBariatric004

Identifier Type: -

Identifier Source: org_study_id

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