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- Essai clinique NCT07821827
Combined Phacoemulsification-Goniotomy in Primary Open-Angle and Primary Angle-Closure Glaucoma
Combined Phacoemulsification-Goniotomy in Primary Open-Angle and Primary Angle-Closure Glaucoma: A Comparative Study
This study evaluates whether combining cataract surgery (phacoemulsification) with incisional goniotomy effectively lowers intraocular pressure (IOP) and reduces the need for glaucoma medications in patients with coexisting cataract and glaucoma.
Conventional filtering surgeries, such as trabeculectomy, effectively reduce eye pressure but are often associated with bleb-related complications, hypotony, and intensive postoperative management. Goniotomy is an angle-based, conjunctival-sparing procedure that enhances natural aqueous outflow by incising the trabecular meshwork. When performed alongside phacoemulsification, cataract removal deepens the anterior chamber while goniotomy addresses outflow resistance without disrupting conjunctival tissue.
The main goal of this study is to compare the efficacy and safety profile of combined phacoemulsification and goniotomy between two distinct glaucoma phenotypes: primary open-angle glaucoma (POAG) and primary angle-closure glaucoma (PACG).
Participants will:
- Undergo standard clear corneal phacoemulsification with intraocular lens (IOL) implantation combined with nasal incisional goniotomy under direct gonioscopic visualization.
- Complete postoperative follow-up examinations at Day 1, Week 1, and Months 1, 3, 6, 9, and 12.
- Be monitored for changes in intraocular pressure, total number of glaucoma medications required, visual acuity, and postoperative complications for a minimum duration of 6 months.
Aperçu de l'étude
Statut
Intervention / Traitement
Type d'étude
Inscription (Estimé)
Phase
- N'est pas applicable
Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
- Adulte
- Adulte plus âgé
Accepte les volontaires sains
La description
Inclusion Criteria:
- Age 40 years and older (no upper limit).
- Diagnosis of uncontrolled or progressive primary open-angle glaucoma (POAG) or primary angle-closure glaucoma (PACG).
- Presence of visually significant cataract requiring phacoemulsification.
- Willingness and ability to complete the postoperative follow-up schedule of at least 6 months.
Exclusion Criteria:
- Secondary glaucoma.
- Prior incisional glaucoma surgery or selective laser trabeculoplasty (SLT) in the study eye.
- Corneal opacity preventing adequate gonioscopic visualization of the angle.
- Associated retinal disease or non-glaucomatous optic nerve disease.
- Inability or unwillingness to adhere to the follow-up schedule.
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Traitement
- Répartition: Non randomisé
- Modèle interventionnel: Affectation parallèle
- Masquage: Aucun (étiquette ouverte)
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
|---|---|
|
Expérimental: POAG Group (Phaco-Goniotomy)
Patients with uncontrolled or progressive primary open-angle glaucoma (POAG) and coexisting cataract undergoing clear corneal phacoemulsification with intraocular lens (IOL) implantation combined with ab-interno nasal incisional goniotomy (120°-140°) using a 20G MVR blade or 27G needle under direct Swan-Jacob goniolens visualization.
|
Standard temporal clear corneal phacoemulsification (2.2-2.4 mm incision) with foldable acrylic intraocular lens (IOL) implantation into the capsular bag under local anesthesia.
Following IOL placement and anterior chamber reformation with cohesive viscoelastic, the patient's head is rotated 35°-40° and the surgical microscope tilted 30°-40°.
Under direct visualization using a Swan-Jacob goniolens, an ab-interno nasal incisional goniotomy spanning approximately 120°-140° of the trabecular meshwork is performed through the main corneal incision using a 20G MVR blade or 27G needle tip.
Viscoelastic is then completely aspirated, wound integrity is confirmed, and intracameral antibiotic may be administered.
|
|
Expérimental: PACG Group (Phaco-Goniotomy)
Patients with uncontrolled or progressive primary angle-closure glaucoma (PACG) and coexisting cataract undergoing clear corneal phacoemulsification with intraocular lens (IOL) implantation combined with ab-interno nasal incisional goniotomy (120°-140°) using a 20G MVR blade or 27G needle under direct Swan-Jacob goniolens visualization.
|
Standard temporal clear corneal phacoemulsification (2.2-2.4 mm incision) with foldable acrylic intraocular lens (IOL) implantation into the capsular bag under local anesthesia.
Following IOL placement and anterior chamber reformation with cohesive viscoelastic, the patient's head is rotated 35°-40° and the surgical microscope tilted 30°-40°.
Under direct visualization using a Swan-Jacob goniolens, an ab-interno nasal incisional goniotomy spanning approximately 120°-140° of the trabecular meshwork is performed through the main corneal incision using a 20G MVR blade or 27G needle tip.
Viscoelastic is then completely aspirated, wound integrity is confirmed, and intracameral antibiotic may be administered.
|
Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
Change in Intraocular Pressure
Délai: Baseline and 6 months postoperatively
|
Intraocular pressure is measured in millimeters of mercury (mmHg) using Goldmann applanation tonometry.
Values represent the change in IOP calculated as post-intervention IOP minus baseline IOP.
|
Baseline and 6 months postoperatively
|
Collaborateurs et enquêteurs
Parrainer
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Estimé)
Achèvement primaire (Estimé)
Achèvement de l'étude (Estimé)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Réel)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Mots clés
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- Phaco-Goniotomy: POAG vs. PACG
Informations sur les médicaments et les dispositifs, documents d'étude
Étudie un produit pharmaceutique réglementé par la FDA américaine
Étudie un produit d'appareil réglementé par la FDA américaine
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