Examining the impact of preoperative anemia on surgical complications

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study investigates how different types of preoperative anemia affect the incidence of perioperative complications in patients undergoing moderate- to high-risk surgeries. It classifies anemia into categories such as iron-deficiency anemia, anemia of chronic disease, and combined anemia, and compares these groups to a control group of patients without anemia. The study involves screening patients based on specific inclusion and exclusion criteria, measuring hemoglobin levels, and conducting lab tests to assess anemia status. All participants will undergo similar perioperative assessments and follow-ups to evaluate outcomes related to oxygen supply and demand imbalances.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* age 18 years or older
* scheduled for elective moderate- to high-risk surgery other than intracranial and cardiac surgery
* predicted surgery time longer than 1 hour and hospital stay longer than 24 hours
* understand and agree to participate

Exclusion Criteria:

* pregnant
* live at areas higher than 2,500 meters above sea level
* with hematological diseases other than anemia
* with severe comorbidities that might interfere outcome assessment, like uremia, dementia, and so on
* can't cooperate or communicate, or reject to sign informed consent form

Where it's running

• Department of Anesthesiology, First Affiliated Hospital of Wannan Medical College
  Wuhu, Anhui, China Recruiting
• Beijing Longfu Hospital (Beijing Geriatric Hospital of Integrated Traditional Chinese and Western Medicine)
  Beijing, Beijing Municipality, China Recruiting
• Anesthesiology Department, Beijing NO.6 Hospital
  Beijing, Beijing Municipality, China Recruiting
• BeiJing Hepingli Hospital
  Beijing, Beijing Municipality, China Recruiting
• Beijing Puren Hospital
  Beijing, Beijing Municipality, China Recruiting
• Peking Union Medical College Hospital
  Beijing, Beijing Municipality, China Recruiting

Study contacts

• Study coordinator: Lu Che
• Email: tracymaobao@126.com
• Phone: 15901045120

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.