Comparison of the tissue penetration and glide force of 22-gauge thin-wall needles for intravitreal implant administration

BACKGROUND AND OBJECTIVE: To identify a needle to improve intravitreal dexamethasone implant administration by evaluating ease of ocular tissue penetration and glide force, key characteristics of needle performance

Bibliographische Detailangaben
Veröffentlicht in:Ophthalmic surgery, lasers & imaging retina. - 2013. - 45(2014), 5 vom: 01. Sept., Seite 430-5
1. Verfasser: Bakri, Sophie J (VerfasserIn)
Weitere Verfasser: Boyer, David S, Albini, Thomas A, Holekamp, Nancy M, Ferrone, Philip J, Bhagat, Rahul, Novakovic, Zoran
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2014
Zugriff auf das übergeordnete Werk:Ophthalmic surgery, lasers & imaging retina
Schlagworte:Comparative Study Journal Article Research Support, Non-U.S. Gov't Drug Implants Glucocorticoids Dexamethasone 7S5I7G3JQL
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245 1 0 |a Comparison of the tissue penetration and glide force of 22-gauge thin-wall needles for intravitreal implant administration 
264 1 |c 2014 
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500 |a Date Revised 05.01.2015 
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500 |a Citation Status MEDLINE 
520 |a BACKGROUND AND OBJECTIVE: To identify a needle to improve intravitreal dexamethasone implant administration by evaluating ease of ocular tissue penetration and glide force, key characteristics of needle performance 
520 |a MATERIALS AND METHODS: Two custom-applicator needles coated with distinct lubricants (needles A and B) and the original dexamethasone implant needle were evaluated by five retina specialists. Ex vivo porcine eyes were injected, and a visual analog scale was used in ratings 
520 |a RESULTS: Ease of ocular tissue penetration and glide force of needle B were rated significantly higher than that of the original applicator needle (P < .001), but there were no significant differences for needle A. Lot to lot, needle B was not significantly different in penetration and glide, whereas a significant difference was observed for penetration of needle A (P = .043) 
520 |a CONCLUSION: Needle design and lubricant appear to facilitate penetration and reduce glide force when administering dexamethasone intravitreal implants. Minimal lot-to-lot variation should be considered in needle choice 
650 4 |a Comparative Study 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 7 |a Drug Implants  |2 NLM 
650 7 |a Glucocorticoids  |2 NLM 
650 7 |a Dexamethasone  |2 NLM 
650 7 |a 7S5I7G3JQL  |2 NLM 
700 1 |a Boyer, David S  |e verfasserin  |4 aut 
700 1 |a Albini, Thomas A  |e verfasserin  |4 aut 
700 1 |a Holekamp, Nancy M  |e verfasserin  |4 aut 
700 1 |a Ferrone, Philip J  |e verfasserin  |4 aut 
700 1 |a Bhagat, Rahul  |e verfasserin  |4 aut 
700 1 |a Novakovic, Zoran  |e verfasserin  |4 aut 
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