Clinical trial Recruiting at 1 site Observational Ages 18 and up Women only

Pre-op neutrophil-to-lymphocyte ratio and risk of headache after spinal anesthesia

Official title: Preoperative Neutrophil-to-Lymphocyte Ratio as a Predictor of Post-Dural Puncture Headache Following Cesarean Section Under Spinal Anesthesia

Run by Istinye University · NCT07075874 · Data updated 2026-11-12

This project will test whether a simple blood-count ratio taken before cesarean with spinal anesthesia can help predict which women will get a post-dural puncture headache.

Quick facts

Study typeObservational
Ages18 Years and up
SexWomen only
Enrollment821 (estimated)
SponsorIstinye University
Academic / other
Locations1 site (Istanbul, Merkez Mahallesi)
StatusRecruiting
StartedJuly 12, 2025
Main results expectedJuly 15, 2025
Study endsJuly 17, 2025
Registry record updatedJuly 24, 2025
Trial IDNCT07075874 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Women aged 18 or older who undergo elective or emergency cesarean section under spinal anesthesia and have a complete preoperative CBC available, with no hematologic or active inflammatory disease, are ideal candidates.

Probably not a fit

Patients without preoperative CBC data, with hematologic malignancy or active infection/autoimmune disease, with abnormal coagulation, or who do not receive spinal anesthesia are unlikely to benefit from the study findings.

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

What this trial studies

This is an observational analysis of obstetric patients who had cesarean delivery under spinal anesthesia, using preoperative complete blood counts to calculate the neutrophil-to-lymphocyte ratio (NLR). Researchers will compare NLR values between patients who did and did not develop post-dural puncture headache (PDPH) using medical record follow-up. Patients with hematologic or active inflammatory conditions, abnormal coagulation, or missing pre-op CBC data are excluded. Statistical models will control for key factors such as age, elective versus emergency procedure, and intraoperative events to see if higher NLR is associated with increased PDPH risk.

Why it matters

Potential benefit: If successful, the finding could give clinicians a low-cost preoperative marker to identify women at higher risk of PDPH so they can offer targeted counseling or preventive measures.

How similar studies have gone: Some prior research has linked systemic inflammatory markers to various postoperative outcomes, but using preoperative NLR specifically to predict PDPH is relatively novel and not yet well established.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Women aged 18 years or older
* Underwent elective or emergency cesarean section under spinal anesthesia
* Had complete preoperative complete blood count (CBC) data available
* No known hematological or inflammatory disease
* No intraoperative complications recorded
* Medical records accessible for postoperative follow-up regarding PDPH symptoms

Exclusion Criteria:

* Age under 18
* Absence of preoperative complete blood count data
* Presence of hematologic malignancy, active infection, autoimmune disease, or immunosuppressive therapy
* Platelet count \<150,000/mm³ or INR \>1.5
* Incomplete or missing medical records

Where it's running

  • Istinye Üniversity
    Istanbul, Merkez Mahallesi, Turkey (Türkiye)
    Recruiting

Study contacts

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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.
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Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.