Articles: nerve-block.
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Reg Anesth Pain Med · Jul 1999
Randomized Controlled Trial Clinical TrialRetrobulbar/peribulbar block with 0.2% ropivacaine or 1% lidocaine for transscleral cyclophotocoagulation or retinal panphotocoagulation.
Brief analgesia is needed to complete krypton laser cyclophotocoagulation for glaucoma patients and is advantageous in argon laser panphotocoagulation for diabetic retinopathy. We studied whether 0.2% ropivacaine, known for analgesia with minimal motor block or 1% lidocaine, with rapid onset and short duration of action, both supplemented with hyaluronidase, are suitable local anesthetics for retrobulbar/peribulbar block for these procedures. ⋯ According to our preliminary data, neither 0.2% ropivacaine nor 1% lidocaine reached acceptable frequencies of adequate analgesia during transscleral cyclophotocoagulation, while all retinal panphotocoagulations could be completed under the initial block.
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Comparative Study
A collaborative regional ocular anesthesia training program: successes and failures.
To describe a collaborative effort of the departments of ophthalmology and anesthesiology to teach anesthesiology residents regional ocular anesthesia; to detect any differences in positive or negative outcomes after blocks performed by anesthesiology residents versus blocks performed by ophthalmology residents. ⋯ Regional ocular anesthetic techniques can be safely and successfully taught to residents in anesthesiology.
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Oral Surg Oral Med O · Jun 1999
Randomized Controlled Trial Comparative Study Clinical TrialThe use of ultrasound for guiding needle placement for inferior alveolar nerve blocks.
The degree of pulpal anesthesia obtained with an ultrasound-assisted inferior alveolar nerve block was compared to that obtained with a conventional inferior alveolar nerve block for mandibular teeth to determine whether needle placement assisted by ultrasound results in more successful anesthesia. ⋯ It was concluded that accurate needle placement with ultrasound for the inferior alveolar nerve block did not result in more successful pulpal anesthesia in the mandible. Therefore, accuracy of needle placement is not the primary reason for pulpal anesthetic failure with this block.