Single injection peribulbar anesthesia with a short needle combined with digital compression

Area of Science:

• Ophthalmology
• Anesthesiology

Background:

• Peribulbar blockade is a common ophthalmic surgical anesthesia technique.
• The standard needle length for peribulbar blockade is 25 mm.

Purpose of the Study:

• To compare the efficacy of a 15 mm needle versus a 25 mm needle for peribulbar blockade.
• To evaluate if a shorter needle with digital compression is as effective as the standard needle.

Main Methods:

• A randomized study involving 150 patients undergoing peribulbar blockade.
• Comparison of 15 mm needle with digital compression versus 25 mm needle.
• Assessment of anesthetic volume, need for supplementation, and akinesia.

Main Results:

• No significant differences in local anesthetic volume required between the two needle groups.
• Supplementation rates and akinesia were comparable across groups.
• The 15 mm needle with digital pressure achieved similar block efficacy.

Conclusions:

• Peribulbar blockade using a 15 mm needle with digital pressure is a viable alternative to the standard 25 mm needle.
• This shorter needle technique offers comparable efficacy to the traditional method.
• Digital pressure is a key component when using a shorter needle for effective peribulbar blockade.