Clinical Scorecard: Impact of Injection Velocity on the Temporal Changes of Optic Nerve Sheath Diameter During Caudal Block in Pediatric Patients: A Prospective Randomized Study

At a Glance

Key Highlights

• High-speed injection (1 mL/s) resulted in higher ONSD immediately after injection compared to low-speed (0.1 mL/s).
• Low-speed injection produced a more gradual rise in ONSD over time.
• Both injection speeds were well tolerated with no adverse events reported.

Guideline-Based Recommendations

Diagnosis

• Monitor ONSD as a reflection of transient intracranial pressure changes during caudal block.

Management

Monitoring & Follow-up

• Regularly measure ONSD at baseline, immediately after injection, and at 10, 20, and 40 minutes post-injection.

Risks

• Transient elevation of intracranial pressure indicated by increased ONSD.

Patient & Prescribing Data

Children aged 1–3 years, ASA physical status I–II.

0.2% ropivacaine at 0.5 mL/kg is used for caudal block.

Clinical Best Practices

Related Resources & Content

• Clinical Trial Registration