تلخیص
Purpose: To determine the efficacy of EMLA cream (Eutectic Mixture of Local
Anesthetics) in pain reduction while injecting botulinum toxin in patients with
hemifacial spasm and blepharospasm.
Study Design: Quasi Experimental Study.
Place & Duration of Study: Yaqin Vision Eye center from January 2015 to
December, 2018.
Material & Methods: Patients undergoing routine treatment of Blepharospasm
and Hemifacial spasm since 2010 were offered pre-injection EMLA cream
application to reduce the pain during injections. A total of 74 Botulinum A toxin
injections were given for blepharospam and hemifacial spasm, half of which
were administered without the use of any topical analgesia while other half were
given to same patient on next visit using EMLA cream 15 minutes prior to
injection. Pain was assessed as mild, moderate and severe in all the patients by
the consultant administering the medication.
Results: Among 37 cases of facial dystonias, 17 (45.9%) were males and 20
(54.1%) were females. It was observed that when EMLA was not used, severe
pain was observed during 8 injections (21.6%), moderate pain in 17 (45.9%),
and mild pain in 12 (32.4%) sessions. However when EMLA was used mild pain
was observed during 33 (89.2%) injections, moderate pain in 3 injections and
severe pain in 1 (2.7%) case. There was a statistically significant difference in
pain control during the sessions involving use of EMLA.
Conclusion: Use of topical EMLA cream dramatically reduces the pain and
makes the administration of botulinum toxin A injection easier in patients with
hemifacial spasm and blepharospasm.
Muhammad Moin, Abdullah Irfan. (2019) Efficacy of EMLA Cream in Pain Reduction during Botulinum Toxin Injections for Facial Dystonias, Pakistan Journal of Ophthalmology, Volume 35, Issue 2.
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