Document Detail


Effect of the Honan intraocular pressure reducer in sub-Tenon's anesthesia.
MedLine Citation:
PMID:  15030837     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
PURPOSE: To ascertain whether the Honan intraocular pressure reducer (HIPR) has an effect on the preoperative intraocular pressure (IOP), surgeon's assessment of anesthesia, and patients' analgesic experience when sub-Tenon's anesthesia is used for routine cataract surgery. SETTING: Princess Alexandra Eye Pavilion, Edinburgh, Scotland. METHOD: Forty-five eyes of 45 patients having routine phacoemulsification cataract surgery were randomized to receive 10 minutes of ocular compression using the HIPR or no compression after administration of sub-Tenon's anesthesia. The IOP was measured immediately before and immediately and 10 minutes after sub-Tenon's anesthesia administration using a standard technique. One surgeon who was masked to the randomization process performed all injections and completed a questionnaire on aspects of the anesthetic block. Patients scored their level of analgesia during surgery. RESULTS: The mean rise in IOP immediately after administration of sub-Tenon's anesthesia was 1.39 mm Hg +/- 3.91 (SD) (95% confidence interval +0.22 to 2.57; P =.021). In the 22 patients who received compression, there was a mean IOP reduction of 4.20 +/- 2.74 mm Hg at 10 minutes. The mean difference between the compression and no-compression groups at 10 minutes was 4.99 mm Hg (P<.0001). There was no difference in the surgeon's scores for any aspect of the sub-Tenon's anesthesia (P>.05). All patients reported good levels of analgesia. CONCLUSIONS: There was a significant reduction in IOP after compression using the HIPR. However, the rise in IOP after administration of sub-Tenon's anesthesia was small and the use of the HIPR did not make a significant difference in the effectiveness of the anesthesia to the surgeon or patients.
Authors:
James H Vallance; Niall Patton; Andrew Ferguson; Harry G Bennett
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Publication Detail:
Type:  Clinical Trial; Journal Article; Randomized Controlled Trial    
Journal Detail:
Title:  Journal of cataract and refractive surgery     Volume:  30     ISSN:  0886-3350     ISO Abbreviation:  J Cataract Refract Surg     Publication Date:  2004 Feb 
Date Detail:
Created Date:  2004-03-19     Completed Date:  2004-05-10     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  8604171     Medline TA:  J Cataract Refract Surg     Country:  United States    
Other Details:
Languages:  eng     Pagination:  433-6     Citation Subset:  IM    
Affiliation:
Princess Alexandra Eye Pavilion, Edinburgh, Scotland, United Kingdom. jimvallance@hotmail.com
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MeSH Terms
Descriptor/Qualifier:
Aged
Anesthesia, Local / methods*
Anesthetics, Combined / administration & dosage
Anesthetics, Local / administration & dosage*
Balloon Dilatation*
Bupivacaine / administration & dosage
Connective Tissue
Double-Blind Method
Female
Humans
Intraocular Pressure*
Lidocaine / administration & dosage
Male
Manometry
Ocular Hypertension / prevention & control*
Phacoemulsification / methods
Chemical
Reg. No./Substance:
0/Anesthetics, Combined; 0/Anesthetics, Local; 137-58-6/Lidocaine; 2180-92-9/Bupivacaine

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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