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Efficacy of three different methods for side port incision wound sealing
Kashiwabuchi, Fabiana K; Khan, Yasin A; Rodrigues Jr, Murilo W; Wang, Jiangxia; McDonnell, Peter J; Daoud, Yassine J.
Affiliation
  • Kashiwabuchi, Fabiana K; The Johns Hopkins University. School of Medicine. Baltimore. US
  • Khan, Yasin A; The Johns Hopkins University. School of Medicine. Baltimore. US
  • Rodrigues Jr, Murilo W; The Johns Hopkins University. School of Medicine. Baltimore. US
  • Wang, Jiangxia; Johns Hopkins Bloomberg School of Public Health. Department of Biostatistics. Baltimore. US
  • McDonnell, Peter J; The Johns Hopkins University. School of Medicine. Baltimore. US
  • Daoud, Yassine J; The Johns Hopkins University. School of Medicine. Baltimore. US
Rev. bras. oftalmol ; 72(6): 379-382, nov.-dez. 2013. ilus, graf
Article in En | LILACS | ID: lil-704739
Responsible library: BR1.2
ABSTRACT

PURPOSE:

To evaluate wound leakage and bacteria-sized particle influx in differently corneal sealed side port incisions.

METHODS:

Four 1.5mm tunnel squared incisions were created in each of four cadaveric human eyes. In each cornea, one incision was left unsealed, whereas the other three incisions were sealed using a 10-0 nylon suture, cyanoacrylate glue, or stromal hydration, respectively. A Seidel and an India ink test were performed on each eye. During each Seidel test, flourescein was applied, the IOP increased from 15 to 80mmHg, and the IOP at which each incision started to leak recorded. During each India ink test, ink was placed on the eye and rinsed out with balanced salt solution (BSS). Ink penetration was then measured by planimetry at physiologic conditions and after an IOP plunge from 80mmHg to 0mmHg.

RESULTS:

Regardless of IOP variations, no leakage or ink inflow was observed through the glued incisions. In contrast, leakage did occur in the other three sealing methods, albeit at significantly different IOP levels in each one (p=0.013). Ink inflow occurred in these sealing methods at physiologic IOP and, to a significantly greater extent, after the IOP challenge (p<0.05). At both of these IOP conditions, the differences in ink influx among these three incision-sealing methods were deemed statistically insignificant.

CONCLUSION:

This study showed that glue was more effective at preventing wound leakage and bacteria-sized particle influx than other commonly used methods especially hydrosealing.
RESUMO

OBJETIVO:

Avaliar o sinal de Seidel positivo e a penetração de tinta da Índia em incisões corneanas acessórias seladas por diferentes métodos.

MÉTODOS:

Quatro incisões de 1,5 x 1,5mm foram criadas em cada um dos quatro olhos provindos do banco de olhos. Em cada córnea, uma incisão foi mantida sem manipulação, enquanto que as outras três incisões foram seladas respectivamente com Nylon 10-0, cola de cianoacrilato e hidratação estromal. Foram realizados dois testes Sinal de Seidel positivo e penetração da tinta da Índia. No primeiro, foi aplicado fluoresceína gotas e a pressão intraocular (PIO) elevada de 15 para 80mmHg. No segundo, a tinta da Índia foi aplicada sobre o olho estudado em duas situações sob PIO fisiológica e sob variação súbita da pressão, de 80 para 0mmHg.

RESULTADOS:

Na incisão selada com cola, apesar da variação da PIO, não houve vazamento e nem penetração de partículas de tinta. Por outro lado, o sinal de Seidel foi positivo nas outras três incisões em diferentes níveis de PIO (p=0,013). A penetração da tinta da Índia ocorreu nestas três incisões sob pressão fisiológica e com maior extensão após a variação da PIO (p<0,05). Esta diferença, no entanto não foi considerada estatisticamente significante quando comparadas as incisões entre si.

CONCLUSÃO:

No presente estudo, a cola foi mais eficaz em prevenir Seidel e entrada de partículas do que outro método comumente usado especialmente, hidratação estromal.
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Full text: 1 Collection: 01-internacional Database: LILACS Main subject: In Vitro Techniques / Limbus Corneae / Cornea / Fluorescein / Cyanoacrylates / Ink / Intraocular Pressure / Anterior Chamber Limits: Humans Language: En Journal: Rev. bras. oftalmol Journal subject: OFTALMOLOGIA Year: 2013 Document type: Article Affiliation country: United States Country of publication: Brazil

Full text: 1 Collection: 01-internacional Database: LILACS Main subject: In Vitro Techniques / Limbus Corneae / Cornea / Fluorescein / Cyanoacrylates / Ink / Intraocular Pressure / Anterior Chamber Limits: Humans Language: En Journal: Rev. bras. oftalmol Journal subject: OFTALMOLOGIA Year: 2013 Document type: Article Affiliation country: United States Country of publication: Brazil