Investigation of risk factors for increased neutrophil-lymphocyte ratio due to surgical invasion

Investigation of risk factors for increased neutrophil-lymphocyte ratio due to surgical invasion - Investigation of risk factors for increased neutrophil-lymphocyte ratio due to surgical invasion

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000055062

Enrollment

30000

Registered

2024-07-24

Start date

2024-09-01

Completion date

Unknown

Last updated

2026-06-29

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

Conditions

Patients undergoing surgeries

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Surgery under general anesthesia 2. Measurement of leukocyte fractions before surgery (within 6 months) and the day after surgery

Exclusion criteria

Exclusion criteria: 1. Surgery using artificial heart-lung 2. Patients with hematological diseases 3. Same-day or next-day revision surgery 4. Patients with errors or deficiencies in key data (e.g., BMI)

Design outcomes

Primary

Measure	Time frame
Difference between the NLR at the time of the most recent surgery and the NLR the day after surgery	—

Countries

Japan

Contacts

Public ContactKensuke Shimada

University of Tsukuba Hospital Department of Anesthesiology

shimada.kensuke.gu@u.tsukuba.ac.jp029-853-7668

Outcome results