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pH-adjusted periocular anaesthesia for primary vitreoretinal surgery.
1Vision Research Foundation, Chennai, India. MDSAAA35@giasmd01.vsnl.net.in
Indian Journal of Ophthalmology
|July 13, 2000
Summary
pH-adjusted periocular anesthesia effectively provided anesthesia and akinesia for vitreoretinal surgery in 88.3% of patients. This safe and effective technique is suitable for primary vitreoretinal procedures.
Area of Science:
- Ophthalmology
- Anesthesiology
Background:
- Periocular anesthesia is crucial for vitreoretinal surgery.
- Optimizing anesthetic agents can improve patient outcomes and surgical efficiency.
Purpose of the Study:
- To assess the efficacy of pH-adjusted bupivacaine with medial orbital periconal block for periocular anesthesia.
- To determine the safety and effectiveness of this anesthetic technique in patients undergoing primary vitreoretinal surgery.
Main Methods:
- Prospective enrollment of sixty consecutive patients undergoing primary vitreoretinal surgery.
- Administration of pH-adjusted bupivacaine via medial orbital periconal block.
- Evaluation of anesthesia and akinesia adequacy, and need for intraoperative supplementation.
Main Results:
- Adequate anesthesia and akinesia were achieved in 53 eyes (88.3%) without intraoperative supplementation.
- Combined vitrectomy with scleral buckling and surgery duration exceeding 2 hours were associated with increased supplementation needs (p = 0.005 and p = 0.001, respectively).
- No ocular or systemic complications were reported.
Conclusions:
- pH-adjusted periocular anesthesia is a safe and effective method for primary vitreoretinal surgery.
- This technique provides adequate anesthesia and akinesia, minimizing the need for intraoperative interventions.
- The study supports the use of pH-adjusted bupivacaine for enhanced periocular anesthesia in ophthalmic procedures.