An observational study in Post-Dural Puncture Headache, sponsored by Konya City Hospital. Completed at 1 site in Turkey (Türkiye). Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2025-12-09.
Sponsored by Konya City Hospital · Observational
This study aims to investigate the relationship between spinal needle size and optic nerve sheath diameter (ONSD) in patients who develop post-dural puncture headache (PDPH) after spinal anesthesia. ONSD is measured using ultrasound, which helps estimate changes in brain pressure. The study also examines whether the severity of headache is related to ONSD. Adult patients aged 18 to 75 years who develop PDPH will be included. This research will be conducted at Konya City Hospital and is expected to last for approximately six months.
This prospective observational study investigates the relationship between spinal needle gauge and optic nerve sheath diameter (ONSD) in patients who develop post-dural puncture headache (PDPH) following spinal anesthesia. ONSD is measured using ultrasound as a non-invasive marker of intracranial pressure. The study also aims to evaluate the association between headache severity, assessed by the Visual Analog Scale (VAS), and ONSD values. Patients aged 18-75 years with PDPH will be included, and data on spinal needle gauge, ONSD, and VAS scores will be analyzed. The study is being conducted at a single tertiary care center and aims to contribute to understanding the physiopathology of PDPH and its relation to procedural factors.
125 studies on the registry are indexed under Post-Dural Puncture Headache; 25 are open to participants now.
This study's enrollment of 40 is below the median of 188 across 34 observational studies indexed under Post-Dural Puncture Headache.
Browse Post-Dural Puncture Headache studies →Konya City Hospital is the lead sponsor of 76 studies on the registry; 21 are open to participants now.
Counted across the registry records on this site, refreshed daily.
The study population consists of adult patients aged 18 to 75 years who develop post-dural puncture headache (PDPH) following spinal anesthesia. All participants are evaluated and monitored at a tertiary care center and are classified as ASA physical status I to III.
Exclusion Criteria:
Group 25G: Patients who underwent spinal anesthesia with a 25-gauge needle
Group 27G: Patients who underwent spinal anesthesia with a 27-gauge needle
Optic nerve sheath diameter (ONSD)
The primary outcome is the measurement of optic nerve sheath diameter (ONSD) via ocular ultrasound in patients who develop postoperative headache attributed to dural puncture. This non-invasive assessment is used to estimate intracranial pressure. The aim is to evaluate whether different spinal needle gauges affect ONSD measurements.
Time frame: Within 4 hours of anesthesia consultation for postoperative headache
Pain severity assessed by Visual Analog Scale (VAS)
Pain severity will be scored using the Visual Analog Scale (VAS), ranging from 0 (no pain) to 10 (worst imaginable pain), during the anesthesia consultation conducted for postoperative headache. This measure will be compared with ONSD values.
Time frame: Within 4 hours of anesthesia consultation for postoperative headache
Spinal Needle Gauge
The gauge (diameter in G) of the spinal needle used for the neuraxial procedure will be extracted from anesthesia records. The goal is to assess whether the spinal needle size is associated with ONSD measurements in patients with postoperative headache.
Time frame: Retrieved from procedure documentation at the time of spinal anesthesia
Plan to share: Undecided
This study is completed, as verified in May 2025. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
Konya City Hospital