Abstract
Objective
To evaluate the relationship between intraocular pressure (IOP)-lowering success with
selective laser trabeculoplasty (SLT) and Kahook Dual Blade (KDB) goniotomy in eyes
with glaucoma.
Design
Retrospective chart review.
Participants
30 eyes of 24 patients undergoing phacoemulsification combined with a KDB with 6 months
follow-up and who had previously undergone SLT in the same eye.
Methods
Data collected from electronic health records included demographic and glaucoma status,
IOP and IOP-lowering medication after SLT and KDB. SLT and KDB success were defined
as IOP reduction ≥20% or medication reduction ≥1 at 2 and 6 months, respectively.
Main outcome
Association between SLT success and KDB success.
Results
Overall, SLT was successful in 17 of 30 eyes (56.7%) at 2 months, and KDB was successful
in 18 of 30 eyes (60%) at 6 months. Nine of 17 eyes (52.9%) with prior successful
SLT had successful subsequent KDB, whereas 9 of 13 (69.2%) with prior unsuccessful
SLT had successful KDB. There was no significant relationship between SLT and KDB
outcome in these 30 eyes (p = 0.465 by Fisher's exact test).
Conclusion
No relationship between success of SLT and subsequent KDB was observed. However, patients
with history of failed SLT still benefited from subsequent KDB.
Résumé
Objectif
Évaluer le lien entre la baisse de la pression intraoculaire (PIO) obtenue par trabéculoplastie
sélective au laser (TSL) et par goniotomie réalisée au moyen de la lame double Kahook
(LDK) en présence de glaucome.
Nature
Examen rétrospectif de dossiers médicaux.
Participants
Trente yeux de 24 patients devant subir une phacoémulsification combinée à une LDK
s'accompagnant d'un suivi de 6 mois et qui avaient préalablement subi une TSL dans
le même œil.
Résultats
La cueillette des données issues des dossiers médicaux électroniques comprenait les
caractéristiques démographiques, l’état du glaucome, la PIO et les médicaments visant
à abaisser la PIO après la TSL et la LDK. La réussite de la TSL et de la LDK se définissait
comme une baisse ≥ 20 % de la PIO ou une baisse de ≥ 1 médicament à 2 et à 6 mois,
respectivement.
Paramètre principal
Association entre la réussite de la TSL et la réussite de la LDK.
Résultats
Dans l'ensemble, la TSL a réussi dans 17 yeux sur 30 (56,7 %) à 2 mois, tandis que
la LDK a réussi dans 18 yeux sur 30 (60 %) à 6 mois. La LDK subséquente a réussi dans
9 des 17 yeux (52,9 %) qui avaient répondu à la TSL, et dans 9 des 13 yeux (69,2 %)
où la TSL avait échoué. On n'a enregistré aucun lien significatif entre le résultat
de la TSL et celui de la LDK dans ces 30 yeux (p = 0,465 selon le test exact de Fisher).
Conclusion
Aucun lien n'a pu être établi entre la réussite de la TSL et l'issue d'une LDK subséquente.
Cela dit, certains des patients chez qui la TSL avait échoué ont quand même retiré
des bienfaits d'une LDK subséquente.
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Article Info
Publication History
Published online: April 08, 2021
Accepted:
February 27,
2021
Received in revised form:
February 17,
2021
Received:
June 16,
2020
Identification
Copyright
© 2021 Canadian Ophthalmological Society. Published by Elsevier Inc. All rights reserved.
