Combined transscleral diode laser cyclophotocoagulation and Ahmed gonioimplantation in dogs with primary glaucoma: 51 cases (1996–2004)

Sapienza, John S.; Woerdt, Alexandra van der

doi:10.1111/j.1463-5224.2005.00356.x

Cited by 63 publications

(90 citation statements)

References 16 publications

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“…However, the improvement of end stage glaucoma by cryo-and laser-therapy is usually limited [1,8,13,15,17]. Owners usually hesitate to have the dog received enucleation surgery.…”

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confidence: 99%

Surgical Outcome and Ocular Complications of Evisceration and Intraocular Prosthesis Implantation in Dogs with End Stage Glaucoma: a Review of 20 Cases

Cui

Liu

et al. 2007

The Journal of Veterinary Medical Science

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ABSTRACT. Surgical outcome and complications following evisceration and implantation of intraocular silicone prosthesis (ISP) in 20 canine eyes with end-stage glaucoma were analyzed, including clinical signs, complications, cosmetic appearance, and owners' responses. The mean postoperative follow-up time was 312 days. Major short-term surgical complications were central corneal ulceration (6/20) and infections (3/20), while long-term complication was keratoconjunctivitis sicca (KCS) (2/20). All patient owners (100%) showed satisfied with the surgical outcome and postoperative cosmetic effect including 85% of the owners gave an excellent or good rating of satisfaction. No more medication needed for long term control except the KCS cases. With careful case selection and postoperative care, evisceration with ISP implantation proves a good and safe surgical procedure with minimal complications for end stage glaucoma. KEY WORDS: complications, end-stage glaucoma, intraocular silicone prosthesis (ISP).J. Vet. Med. Sci. 69(8): 847-850, 2007 End stage glaucoma is clinically characterized by a persistent increased intraocular pressure (IOP) with buphthalmos, ocular pain, and refractory to medical treatment [4,19]. This stage is commonly seen in dogs usually due to failure of early correct diagnosis or treatment, or rapid progression of the disease itself.The treatment options for painful blind eyes caused by glaucoma include cyclocryotherapy or laser cryoablation, intraocular prosthesis implantation, and enucleation [2, 4, 5-8, 15, 17-19]. However, the improvement of end stage glaucoma by cryo-and laser-therapy is usually limited [1,8,13,15,17]. Owners usually hesitate to have the dog received enucleation surgery. The intraocular prosthesis implantation has become a popular alternative for end stage glaucoma to offer a painless and cosmetically acceptable eye after surgery [6,7].Here we present 15 dogs/20 eyes with end stage glaucoma treated by evisceration and ISP implantation in Taiwan. The purpose of the study was to evaluate surgical complications, cosmetic appearance and owner responses following evisceration and ISP implantations in the dogs.Medical records of 20 canine eyes with end-stage glaucoma treated with evisceration and ISP implantation at the Ophthalmology Clinic of the National Taiwan University Veterinary Hospital were analyzed. The dogs with intraocular infection or neoplasm were excluded for the procedure. The eyes with KCS or mild corneal ulcers were stabilized medically until substantial improvement or recovery prior to being considered to receive surgery. The eyes with pre-operatively stable and improving condition of KCS were also included for the surgery because postoperative size reduction of globe from buphthalmia and proper medical control of KCS usually work well for the cases with mild or moderate KCS cases. The cases of severe KCS were excluded for the surgery due to infection concern.The operated eyes were prepared and draped as routine intraocular surgery. A 5-8 mm, 120°~150°, dorsal l...

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“…However, the improvement of end stage glaucoma by cryo-and laser-therapy is usually limited [1,8,13,15,17]. Owners usually hesitate to have the dog received enucleation surgery.…”

mentioning

confidence: 99%

Surgical Outcome and Ocular Complications of Evisceration and Intraocular Prosthesis Implantation in Dogs with End Stage Glaucoma: a Review of 20 Cases

Cui

Liu

et al. 2007

The Journal of Veterinary Medical Science

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“…Il a été montré que le processus de nécrose par coagulation s'étale dans le temps, sur une période d'environ quatre semaines, la pression intraoculaire diminuant progressivement pendant cette période (Nadelstein et al 1997). Cette technique a été associée par certains auteurs à l'utilisation d'un gonioimplant (shunt de filtration entre chambre antérieure et espace sous-conjonctival) (Bentley et al 1999 ;Sapienza & Van der Woerdt, 2005).…”

Section: Principeunclassified

Utilisation du laser infrarouge en ophtalmologie vétérinaire

Goulle¹

2011

bavf

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Bull. Acad. Vét. France -2011 -Tome 164 -N°3 http://www.academie-veterinaire-defrance.org/ 217 COMMUNICATION UTILISATION DU LASER INFRAROUGE EN OPHTALMOLOGIE VÉTÉRINAIRE USE OF INFRA-RED LASER IN VETERINARY OPHTHALMOLOGYPar Frédéric GOULLE (Communication présentée le 20 Janvier 2011) Le laser infrarouge est le laser le plus utilisé en ophtalmologie vétérinaire. Il agit par une action thermique (photocoagulation) et l'énergie du laser diode peut être délivrée par différents appareils: sondes trans-sclérales, sondes endoculaires, ou laser monté sur microscope opératoire ou sur un ophtalmoscope indirect. Le tissu cible peut être le corps ciliaire (chirurgie du glaucome), la rétine (rétinopexie), ou tout tissu contenant de la mélanine. La cyclophotocoagulation par laser infrarouge crée une nécrose par coagulation de l'épithélium ciliaire, du stroma ciliaire et de sa vascularisation, aboutissant à une diminution de la sécrétion d'humeur aqueuse et à l'abaissement de la pression intraoculaire. La réti-nopexie par laser infrarouge est réalisée soit à but préventif, soit dans la cadre d'une chirurgie de réapplication rétinienne. La photocoagulation crée une nécrose par coagulation aboutissant à une adhésion choriorétinienne pour maintenir la rétine sur le fond d'oeil. Le laser diode infrarouge est également utilisé chez les animaux pour le traitement des kystes uvéaux pigmentés, des mélanomes épibulbaires, et de certaines tumeurs iriennes bénignes.Mots-clés: oeil, laser, rétinopexie, glaucome, animal. RÉSUMÉ The infrared diode laser is the most commonly used laser in veterinary ophthalmology. Diode laser has a thermal photocoagulation effect. Laser energy may be delivered through different devices, including transscleral probes, intraocular probes, an operating microscope adapter and an indirect ophthalmoscope headset. The target tissue may be the ciliary body (glaucoma surgery), retina (retinopexy)or any melanin-containing tissue. Infrared laser cyclophotocoagulation produces coagulation necrosis of the ciliary epithelium, the ciliary stroma and its vasculature, thereby decreasing the production of aqueous humour and hence lowering the intraocular pressure. Retinopexy using infrared laser is performed either for prophylaxis or for retinal reattachment surgery. Photocoagulation produces coagulation necrosis resulting in chorioretinal adhesion which maintains the retina attached to the fundus. Finally, the infrared diode laser is also used in veterinary patients for the treatment of pigmented uveal cysts, epibulbar melanoma, and certain benign iris tumours.

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“…Disparos de laser são realizados em 30 a 50 sítios a, aproximadamente, 3mm do limbo, evitando-se as posições entre 3 e 9 horas (correspondentes às de um relógio), por onde permeiam as artérias ciliares longas posteriores (GELATT & GELATT, 2001;SAPIENZA & van der WOERDT, 2005). Os níveis de energia utilizados para o procedimento são variados (60 a 220 J / 800 -1500 mW x 1500 -1700 ms) (GILMOUR, 2002;SAPIENZA & van der WOERDT, 2005).…”

Section: Procedimentos Ciclodestrutivosunclassified

“…As complicações pós-operatórias incluem uveítes, elevação súbita da PIO (devido ao bloqueio Ciência Rural, v.37, n.6, nov-dez, 2007. do ângulo iridocorneal por fragmentos inflamatórios), descolamentos de retina, catarata, adelgaçamento escleral e casos de ceratoconjuntivite seca (GELATT & GELATT, 2001;GILMOUR, 2002;SAPIENZA & van der WOERDT, 2005). O uso intracameral de 25 a 37μg de ativador de plasminogênio tecidual pode ser eficiente como substância fibrinolítica após ciclofotocoagulação a laser com diodo (SAPIENZA & van der WOERDT, 2005).…”

Section: Procedimentos Ciclodestrutivosunclassified