| Bacterial-sized particle inflow through sutured clear corneal incisions in a laboratory human model. | |
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MedLine Citation:
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PMID: 21497050 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: To determine the effectiveness of a single radial suture placement in 2 clear corneal incision (CCI) configurations in preventing inflow of bacterial-sized particles. SETTING: Wilmer Eye Institute, Baltimore, Maryland, USA. DESIGN: Experimental study. METHODS: Ten human globes were used. Two 25-gauge needles connected to a saline solution bag and to a digital manometer were inserted through the limbus 120 degrees apart. Four incision-suture combinations were evaluated sequentially in each cornea. All incisions had the same dimensions (2.75 mm width, 3.00 mm length). Two incisions were single plane, and 2 were biplane. One incision from each configuration was left unsutured, and the other was sutured (10-0 nylon). With a preset 10 mm Hg intraocular pressure (IOP), India ink was applied to the incision site and a sudden IOP fluctuation was induced. Inflow was outlined and measured by planimetry. RESULTS: There was a significant increase in area and linear distance of India-ink inflow after pressure challenge in all groups (P < .05), but with important differences among them. When the sutured and unsutured groups from each CCI were compared, there was a significantly smaller area of inflow in the 2-step unsutured group (P < .05). The linear inflow was higher in both sutured groups; however, the difference was significant for the 2-step incision configuration only (P < .05). CONCLUSIONS: A single radial suture reduced the area of inflow of bacterial-sized particles but increased the linear distance of inflow in single-plane 3.0 mm incisions. Suture placement in a stepped incision increased inflow of bacterial-sized particles. FINANCIAL DISCLOSURE: No author has a financial or proprietary interest in any material or method mentioned. |
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Authors:
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William N May; Juan Castro-Combs; Renata T Kashiwabuchi; Hans Hertzog; Woranart Tattiyakul; Yasin A Kahn; Flavio Hirai; Emily W Gower; Ashley Behrens |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2011-04-15 |
Journal Detail:
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Title: Journal of cataract and refractive surgery Volume: 37 ISSN: 1873-4502 ISO Abbreviation: J Cataract Refract Surg Publication Date: 2011 Jun |
Date Detail:
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Created Date: 2011-05-20 Completed Date: 2011-07-22 Revised Date: 2012-07-13 |
Medline Journal Info:
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Nlm Unique ID: 8604171 Medline TA: J Cataract Refract Surg Country: United States |
Other Details:
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Languages: eng Pagination: 1140-6 Citation Subset: IM |
Copyright Information:
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Copyright © 2011. Published by Elsevier Inc. |
Affiliation:
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Doheny Eye Institute, Keck School of Medicine, University of Southern California, Los Angeles, California, USA. williamnmaymd@gmail.com |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Carbon
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metabolism* Cataract Extraction* Cornea / metabolism*, surgery* Humans Intraocular Pressure Models, Biological Nylons Surgical Wound Dehiscence / metabolism* Suture Techniques* Sutures Wound Healing / physiology |
| Chemical | |
Reg. No./Substance:
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0/Nylons; 0/chinese ink; 7440-44-0/Carbon |
| Comments/Corrections | |
Comment In:
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J Cataract Refract Surg. 2011 Dec;37(12):2235-6; author reply 2236-2237
[PMID:
22108133
]
J Cataract Refract Surg. 2012 Jun;38(6):1117-8 [PMID: 22624932 ] |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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