RESUMEN
PRCIS: In this retrospective study, Non-Penetrating-Deep-Sclerectomy and Penetrating-Deep-Sclerectomy interventions showed similar >90% complete success rates at one-year post-surgery. However, Non-Penetrating-Deep-Sclerectomy achieved a superior safety profile in terms of best-corrected visual acuity recovery and rates of post-surgical complications. PURPOSE: Comparing the surgical outcomes of two surgical techniques: non-penetrating deep sclerectomy (NPDS) and penetrating deep sclerectomy (PDS). PATIENTS AND METHODS: This was a retrospective, longitudinal, comparative study including 66 eyes from 57 patients aged 69±9 years who underwent either NPDS or PDS for medically uncontrolled open-angle glaucoma. Outcome measurements included intraocular pressure (IOP), best-corrected visual acuity (BCVA), rates of complications, post-operative corrective interventions and glaucoma medications at baseline and at all post-operative appointments up to 1 year. An exploratory mixed-effects model was used to assess the intergroup differences for IOP and BCVA. RESULTS: One-year post-surgery, similar significant IOP reduction from baseline were observed in NPDS (from 19,9±1.3 to 11.5±0.9 mmHg, P<0.001) and PDS (from 19,5±1,1 to 10.7±0.6 mmHg, P<0.001). A conservative complete success rate (defined as medicated IOP ≤16 mmHg and ≥20% reduction in IOP) was of 87% for NPDS and 97% for PDS. No BCVA changes were observed between baseline and 1-year post-surgery in both groups, and glaucoma medications showed a similar 10-fold reduction in both groups (P<0.001 vs. baseline). However, a significant difference in the speed of post-operative BVCA recovery was observed between NPDS and PDS (P<0.01), NPDS showing a faster recovery. Moreover, lower numbers of post-surgical complication and post-operative interventions were observed following NPDS compared to PDS (NPDS n=30 and 34 vs. PDS n=80 and 48 (P<0.05), respectively). CONCLUSIONS: The present study confirmed that both NPDS and PDS are highly effective surgical interventions for the management of primary open angle glaucoma. However, NPDS had a superior safety profile, in terms of BCVA recovery, complication rates and post-operative interventions.
RESUMEN
The aim of this work was to assess corneal endothelial morphology in a well-established acute graft-versus-host disease (GVHD) murine model and to quantify the expression of neurokinin-1 receptor (NK1R) in the corneal endothelium during ocular GVHD (oGVHD). Pre-conditioning was performed in BALB/c using myeloablative total body irradiation. Subsequently, allogeneic bone marrow transplantation was performed without (BM) or with mature T cells (BM + T). Corneal transparency was monitored with in vivo biomicroscopy. After sacrifice, corneal thickness and endothelial cell number were measured, and the expression of NK1R was investigated in the corneal endothelium through immunofluorescence and quantified by immunohistochemistry. Mice presenting oGVHD showed a significant reduction in endothelial cell number compared to control animals (p < 0.0001). NK1R expression was significantly increased in oGVHD mice endothelium (p < 0.05). Corneal transparency and thickness were unchanged in all groups. Our results suggest that oGVHD affects the corneal endothelium, inducing a reduction of the cell number, and that this is associated with increased expression of the pro-inflammatory marker NK1R.
