pH-adjusted periocular anaesthesia for primary vitreoretinal surgery.
OBJECTIVE
To evaluate the efficacy of pH-adjusted bupivacaine in conjunction with medial orbital periconal block (periocular anaesthesia).


METHODS
Sixty consecutive patients undergoing primary vitreoretinal surgery were enrolled prospectively.


RESULTS
Adequate anaesthesia and akinesia with no intraoperative supplementation was achieved in 53 eyes (88.3%). Factors influencing intraoperative supplementation were combined vitrectomy with scleral buckling (p = 0.005) and duration of surgery of more than 2 hours (p = 0.001). No ocular or systemic complication resulted.


CONCLUSIONS
pH-adjusted periocular anaesthesia is safe and effective in patients undergoing primary vitreoretinal surgery.
Sharma
T
T
Vision Research Foundation, Chennai, India. MDSAAA35@giasmd01.vsnl.net.in
Gopal
L
L
Parikh
S
S
Shanmugam
M P
MP
Saha
S K
SK
Sulochana
K R
KR
Shetty
N S
NS
Mukesh
B N
BN
Badrinath
S S
SS
D000328:Adult; D000368:Aged; D000772:Anesthesia, Local / Q000379:methods*; D000779:Anesthetics, Local / Q000008:administration & dosage* / Q000737:chemistry; D002045:Bupivacaine / Q000008:administration & dosage* / Q000737:chemistry; D004338:Drug Combinations; D005260:Female; D006801:Humans; D006821:Hyaluronoglucosaminidase / Q000008:administration & dosage / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D007267:Injections; D008297:Male; D008875:Middle Aged; D019148:Neuromuscular Blockade; D009915:Orbit; D011446:Prospective Studies; D012591:Scleral Buckling; D016896:Treatment Outcome; D014821:Vitrectomy
D000779:Anesthetics, Local; D004338:Drug Combinations; D006821:Hyaluronoglucosaminidase; D002045:Bupivacaine