Comparison of Minimally Invasive XEN45 Gel Stent Implantation in Glaucoma Patients Without and With Prior Interventional Therapies

Abstract Introduction The aim of our analysis was to compare the effectiveness of the XEN45 gel stent implantation in patients without and with prior glaucoma intervention. Methods Retrospective analysis including 148 medical records of consecutive glaucoma eyes without prior glaucoma intervention (...

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Main Authors: Fritz H. Hengerer, Gerd Auffarth, Ina Conrad-Hengerer
Format: Article
Language:English
Published: Adis, Springer Healthcare 2019-06-01
Series:Ophthalmology and Therapy
Subjects:
Online Access:http://link.springer.com/article/10.1007/s40123-019-0193-7
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author Fritz H. Hengerer
Gerd Auffarth
Ina Conrad-Hengerer
author_facet Fritz H. Hengerer
Gerd Auffarth
Ina Conrad-Hengerer
author_sort Fritz H. Hengerer
collection DOAJ
description Abstract Introduction The aim of our analysis was to compare the effectiveness of the XEN45 gel stent implantation in patients without and with prior glaucoma intervention. Methods Retrospective analysis including 148 medical records of consecutive glaucoma eyes without prior glaucoma intervention (group A, n = 45) or with prior glaucoma intervention (group B, n = 103). Follow-up data up to 12 months after XEN45 gel implantation were available for all eyes. Results At 12 months, qualified success (IOP reduction of ≥ 20% and IOP < 18 mmHg without and with medication) was achieved in 76% of eyes in group A and in 72% of eyes in group B; corresponding values for complete success (IOP reduction of ≥ 20% and IOP < 18 mmHg without medication) were 56% and 55%. Mean IOP was significantly reduced by 58% from 36.0 ± 10.7 mmHg preoperatively to 14.2 ± 3.4 mmHg at 12 months in group A (p = 0.000) and by 53% from 31.6 ± 8.9 mmHg to 14.3 ± 4.2 mmHg and in group B (p = 0.000). The mean number of hypotensive medications had significantly decreased from 3.6 ± 0.8 at baseline to 0.3 ± 0.7 medications in group A (p = 0.000) and from 3.0 ± 1.0 to 0.3 ± 0.7 medications in group B (p = 0.000). Needling was required in 29% of eyes in group A and in 35% of group B within 12 months. No statistically significant differences were observed between eyes without and with prior glaucoma intervention. Conclusion The 1-year results of our retrospective analysis indicate that patients without and with previous glaucoma intervention can benefit from XEN45 gel stent implantation. Both groups achieved significant and similar reductions in IOP and hypotensive medication, with a slight trend towards greater reductions in eyes without prior glaucoma intervention. Further controlled prospective studies with longer follow-ups are required. Funding Editorial support and article processing charges were funded by Allergan.
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spelling doaj.art-d32d41bb074a44b6abd6c2a5d8aaadb02022-12-22T03:00:59ZengAdis, Springer HealthcareOphthalmology and Therapy2193-82452193-65282019-06-018344745910.1007/s40123-019-0193-7Comparison of Minimally Invasive XEN45 Gel Stent Implantation in Glaucoma Patients Without and With Prior Interventional TherapiesFritz H. Hengerer0Gerd Auffarth1Ina Conrad-Hengerer2Department of Ophthalmology, Bürgerhospital und Clementine Kinderhospital gemeinnützige GmbHInternational Vision Correction Research Center (IVCRC), University of HeidelbergInternational Vision Correction Research Center (IVCRC), University of HeidelbergAbstract Introduction The aim of our analysis was to compare the effectiveness of the XEN45 gel stent implantation in patients without and with prior glaucoma intervention. Methods Retrospective analysis including 148 medical records of consecutive glaucoma eyes without prior glaucoma intervention (group A, n = 45) or with prior glaucoma intervention (group B, n = 103). Follow-up data up to 12 months after XEN45 gel implantation were available for all eyes. Results At 12 months, qualified success (IOP reduction of ≥ 20% and IOP < 18 mmHg without and with medication) was achieved in 76% of eyes in group A and in 72% of eyes in group B; corresponding values for complete success (IOP reduction of ≥ 20% and IOP < 18 mmHg without medication) were 56% and 55%. Mean IOP was significantly reduced by 58% from 36.0 ± 10.7 mmHg preoperatively to 14.2 ± 3.4 mmHg at 12 months in group A (p = 0.000) and by 53% from 31.6 ± 8.9 mmHg to 14.3 ± 4.2 mmHg and in group B (p = 0.000). The mean number of hypotensive medications had significantly decreased from 3.6 ± 0.8 at baseline to 0.3 ± 0.7 medications in group A (p = 0.000) and from 3.0 ± 1.0 to 0.3 ± 0.7 medications in group B (p = 0.000). Needling was required in 29% of eyes in group A and in 35% of group B within 12 months. No statistically significant differences were observed between eyes without and with prior glaucoma intervention. Conclusion The 1-year results of our retrospective analysis indicate that patients without and with previous glaucoma intervention can benefit from XEN45 gel stent implantation. Both groups achieved significant and similar reductions in IOP and hypotensive medication, with a slight trend towards greater reductions in eyes without prior glaucoma intervention. Further controlled prospective studies with longer follow-ups are required. Funding Editorial support and article processing charges were funded by Allergan.http://link.springer.com/article/10.1007/s40123-019-0193-7GlaucomaMinimally invasive glaucoma surgeryPrior glaucoma interventionXEN45 gel implant
spellingShingle Fritz H. Hengerer
Gerd Auffarth
Ina Conrad-Hengerer
Comparison of Minimally Invasive XEN45 Gel Stent Implantation in Glaucoma Patients Without and With Prior Interventional Therapies
Ophthalmology and Therapy
Glaucoma
Minimally invasive glaucoma surgery
Prior glaucoma intervention
XEN45 gel implant
title Comparison of Minimally Invasive XEN45 Gel Stent Implantation in Glaucoma Patients Without and With Prior Interventional Therapies
title_full Comparison of Minimally Invasive XEN45 Gel Stent Implantation in Glaucoma Patients Without and With Prior Interventional Therapies
title_fullStr Comparison of Minimally Invasive XEN45 Gel Stent Implantation in Glaucoma Patients Without and With Prior Interventional Therapies
title_full_unstemmed Comparison of Minimally Invasive XEN45 Gel Stent Implantation in Glaucoma Patients Without and With Prior Interventional Therapies
title_short Comparison of Minimally Invasive XEN45 Gel Stent Implantation in Glaucoma Patients Without and With Prior Interventional Therapies
title_sort comparison of minimally invasive xen45 gel stent implantation in glaucoma patients without and with prior interventional therapies
topic Glaucoma
Minimally invasive glaucoma surgery
Prior glaucoma intervention
XEN45 gel implant
url http://link.springer.com/article/10.1007/s40123-019-0193-7
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