Ophthalmological procedures such as cataract extraction can be carried out with a peribulbar block (PBB). The advantages of this anesthetic technique include a lower incidence of coughing, unwanted movements and emesis during awakening, in addition to providing adequate postoperative analgesia. The researchers want to investigate whether the use of fentanyl citrate by peribulbar route, when administered with a local anesthetic, shortens the anesthetic latency, interfere with the degree of akinesia and if provides greater postoperative analgesia.
Article Type. Clinical trial study
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Enrollment
70
Peribulbar block: 100 mg of lidocaine 5% and 15 mg of bupivacaine 0.5% for a total volume of the anesthetic mixture of 5 ml.
Peribulbar block: 100 mg of lidocaine 5%, 15 mg of 0.5% bupivacaine and 50 mcg of fentanyl citrate for a total volume of the anesthetic mixture of 6 ml.
Latency period (lost of corneal reflex)
lost of corneal reflex
Time frame: 10 minutes until the start of surgery
Ocular akinesia: movements of extraocular muscles
movements of extraocular muscles
Time frame: 10 minutes until the start of surgery
Incidence of postoperative pain
Analogous visual scale
Time frame: 2 Hours
postoperative complications
bleeding or bruise
Time frame: 2 hours
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