Postoperative Anemia After Bariatric Surgery

Status

Recruiting

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT06198790

Enrollment

400

Registered

2024-01-10

Start date

2024-02-01

Completion date

2027-12-31

Last updated

2025-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Anemia, Bariatric Surgery Candidate

Brief summary

To investigate the real incidence of short and long-term anemia after bariatric surgery, and explore the risk factors.

Detailed description

This study aims to investigate the real incidence of short and long-term anemia after bariatric surgery and explore the risk factors.

Interventions

None listed

Study design

Observational model

COHORT

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

16 Years to 70 Years

Inclusion criteria

* Patients who will undergo sleeve gastrectomy or Roux-en-Y gastric bypass * Aged between 16 and 70 years * Patients who is not diagnosed as anemia at baseline

Exclusion criteria

* Patients who have anemia at baseline

Design outcomes

Primary

Measure	Time frame	Description
Incidence of anemia after 1, 3, 5, 10 years	10 years	Incidence of anemia after 1, 3, 5, 10 years

Secondary

Measure	Time frame	Description
Incidence of anemia-related nutrient deficiencies	10 years	Incidence of folate, ferritin, vitamin B12, and iron deficiencies
Hazard ratios for the risk factors of postoperative anemia	10 years	Hazard ratios for the risk factors of postoperative anemia will be calculated by Cox regression model.

Countries

China

Contacts

Primary ContactYuntao Nie, M.D.

nytnyt1231@163.com+8618611835860

Backup ContactHua Meng, M.D.

menghuade@hotmail.com+8618611457779

Outcome results