The Effect of Epidural Analgesia on Intracranial Pressure by Measuring the Optic Nerve Sheath Diameter Using Ultrasound in Pediatric Patients With Cerebral Palsy
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Ultrasonography of optic nerve sheath diameter shows a good level of diagnostic accuracy for detecting intracranial hypertension. The aim of this study is to evaluate the effect of epidural block on intracranial pressure in pediatric patients with cerebral palsy undergoing osteotomy of lower extremity. Forty patients, aged 4 years to 13 years, receiving epidural block before osteotomy will be divided into bolus group (n=20) and infusion group (n=20). Randomly selected patients of the bolus group are given 0.3 ml/kg bolus of 0.15% ripivacaine for epidural block. In contrast, patients in the infusion group are given 0.3 ml/kg/hr 0.15% ripivacaine for epidural block. The primary endpoint is the difference in the optic nerve sheath diameter after epidural block measured by optic nerve ultrasonography between groups.
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Inclusion criteria
- Pediatric patients with cerebral palsy from 4 to 13 years of age undergoing osteotomy
- Body weight ≤ 40 kg
Exclusion criteria
- Patients with contraindications to epidural analgesia (local infection, clotting disorders, anatomical abnormalities, sepsis, etc.)
- Patients with symptoms or signs associated with a history of elevated intracranial pressure or elevated intracranial pressure
- Patients with ophthalmic disease or surgery
- The estimated operation time is less than 70 minutes.
- All parents of the subject are foreigners or illiterate
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Interventional model
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40 participants in 2 patient groups
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Data sourced from clinicaltrials.gov
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