Optic Nerve Sheath Diameter in Postspinal Headache (PDPHPatients)

Konya City Hospital

Status: Not yet enrolling

Conditions: Post-Dural Puncture Headache

Study type: Observational

Funder types: Other

Identifiers

NCT06957899

2025/38

Details and patient eligibility

About

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.

Full description

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.

Enrollment: 40 estimated patients

Sex: All

Ages: 18 to 75 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Patients diagnosed with postdural puncture headache (PDPH)
• Male and female patients aged 18-75 years
• Patients classified as American Society of Anesthesiologists (ASA) physical status I-III

Exclusion criteria

• Presence of neurological or ophthalmological disorders
• History of head trauma within the past 6 months
• Hypertension
• Hepatic encephalopathy
• Renal failure
• Pregnancy
• History of chronic headache or migraine
• Refusal to participate
• Inability to obtain reliable optic nerve sheath diameter (ONSD) measurements
• Communication difficulties preventing assessment
• Incomplete or inaccessible medical records

Trial design

40 participants in 2 patient groups

Group 25

Description:

Group 25G: Patients who underwent spinal anesthesia with a 25-gauge needle

Group 27

Description:

Group 27G: Patients who underwent spinal anesthesia with a 27-gauge needle