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\begin{document}

\title{Use of Conjunctival Pedicle Grafts to Treat Corneal Diseases in the
Horse. Retrospective Review of 26 Cases}



\author[1]{Tim Mair}%
\author[1]{Elizabeth Royce}%
\author[2]{Imogen Schofield}%
\affil[1]{Bell Equine Veterinary Clinic}%
\affil[2]{CVS Group plc}%


\vspace{-1em}



  
  \date{May 24, 2024}


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\begin{abstract}
\textbf{Background} There are limited data on outcomes and complications
of conjunctival pedicle grafts in horses. \textbf{Objective} Document
the indications, complications and outcomes of conjunctival pedicle
grafts in horses. \textbf{Study Design} Retrospective case series.
\textbf{Methods} Review of case records of horses with corneal diseases
managed using conjunctival pedicle grafts. History, clinical findings,
treatments, complications, and outcomes were recorded. \textbf{Results}
26 horses were treated by conjunctival pedicle grafts over a 16 years
period. The indications were deep corneal ulceration (n=9), non-healing
superficial corneal ulceration (n=6), corneal stromal abscessation
(n=5), corneal laceration (n=3) and keratomalacia (n=3). Short term
complications occurred in 12 horses (46\%), the commonest being necrosis
of the graft (n=6); in 3 cases, the corneal lesion healed following
debridement, but in 2 the affected eye required enucleation and one was
euthanased. Keratomalacia and ulceration extending beyond the graft
occurred in 3 horses, all of which were enucleated. Uveitis occurred in
6 horses (4 cases prior to discharge and 2 after discharge); enucleation
was required in 5 of these horses. Phthisis bulbi occurred prior to
discharge in one horse and after discharge in another. Two horses had
decreased faecal output after surgery (one had caecal impaction). In
6/26 cases (23\%) enucleation was required prior to hospital discharge.
One horse was euthanased due to post-operative caecal impaction. The
short-term success rate was 69\%. Two horses (8\%) required enucleation
after discharge from the hospital and the long-term success rate was
58\%. \textbf{Main Limitations} Small number of cases with variety of
different diseases of varying severities. \textbf{Conclusions}
Conjunctival pedicle grafts were successfully employed to treat several
corneal diseases including chronic superficial corneal ulceration, deep
corneal ulceration, corneal stromal abscesses, corneal lacerations and
keratomalacia. The short-term success rate was 69\%. Long-term follow-up
indicated a good prognosis for most horses that had a successful
short-term outcome.%
\end{abstract}%



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