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1.
Int Ophthalmol ; 41(6): 2197-2204, 2021 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-33730313

RESUMO

PURPOSE: To evaluate the efficacy and safety of lamellar hole-associated epiretinal proliferation embedding technique with modification in the surgical management of degenerative lamellar macular hole (LMH). METHODS: There is retrospective case series of consecutive eyes who underwent pars plana vitrectomy with LHEP embedding with internal limiting membrane (ILM) inversion technique for degenerative LMH. Primary outcome measure was improvement in foveal contour and central foveal thickness (CFT). Secondary outcome measures were changes in best corrected visual acuity (BCVA), status of outer retinal layers (external limiting membrane-ELM & ellipsoid zone-EZ) and complications. RESULTS: Ten eyes were operated by modified LHEP embedding technique. Mean age was 65.8 ± 5.3 years with 1:1 male to female ratio. Simultaneous cataract surgery was done in 70% cases. Mean follow-up duration was 7.9 ± 0.87 months. 80% (8/10) eyes had improvement in foveal contour to normal appearance with increase in residual foveal thickness from 90.2 ± 26.83 microns to CFT of 226 ± 35.44 microns at 6 months (p = 0.0054). Mean BCVA improved from 0.69 ± 0.19 logMAR to 0.32 ± 0.29 logMAR (p = 0.012). External limiting membrane (ELM) and ellipsoid zone (EZ) defects were present in four eyes (40%) pre-operatively. At the final visit 2 eyes (20%) had persistent defect in both ELM & EZ. None of the eyes progressed to full-thickness macular hole following surgery. CONCLUSIONS: The modified surgical technique of LHEP Embedding with ILM inversion is demonstrated to provide satisfactory results with reduced risk of complications for degenerative LMH. Larger and long-term follow-up studies are needed to establish this technique as standard surgical procedure for LMH with LHEP.


Assuntos
Membrana Epirretiniana , Perfurações Retinianas , Idoso , Proliferação de Células , Membrana Epirretiniana/diagnóstico , Membrana Epirretiniana/cirurgia , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Perfurações Retinianas/diagnóstico , Perfurações Retinianas/cirurgia , Estudos Retrospectivos , Tomografia de Coerência Óptica , Acuidade Visual , Vitrectomia
2.
Glob Chang Biol ; 24(3): 1175-1185, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-29139216

RESUMO

Effective conservation of freshwater biodiversity requires spatially explicit investigations of how dams and hydroclimatic alterations among climate regions may interact to drive species to extinction. We investigated how dams and hydroclimatic alterations interact with species ecological and life history traits to influence past extirpation probabilities of native freshwater fishes in the Upper and Lower Colorado River (CR), Alabama-Coosa-Tallapoosa (ACT), and Apalachicola-Chattahoochee-Flint (ACF) basins. Using long-term discharge data for continuously gaged streams and rivers, we quantified streamflow anomalies (i.e., departure "expected" streamflow) at the sub-basin scale over the past half-century. Next, we related extirpation probabilities of native fishes in both regions to streamflow anomalies, river basin characteristics, species traits, and non-native species richness using binomial logistic regression. Sub-basin extirpations in the Southwest (n = 95 Upper CR, n = 130 Lower CR) were highest in lowland mainstem rivers impacted by large dams and in desert springs. Dampened flow seasonality, increased longevity (i.e., delayed reproduction), and decreased fish egg sizes (i.e., lower parental care) were related to elevated fish extirpation probability in the Southwest. Sub-basin extirpations in the Southeast (ACT n = 46, ACF n = 22) were most prevalent in upland rivers, with flow dependency, greater age and length at maturity, isolation by dams, and greater distance upstream. Our results confirm that dams are an overriding driver of native fish species losses, irrespective of basin-wide differences in native or non-native species richness. Dams and hydrologic alterations interact with species traits to influence community disassembly, and very high extirpation risks in the Southeast are due to interactions between high dam density and species restricted ranges. Given global surges in dam building and retrofitting, increased extirpation risks should be expected unless management strategies that balance flow regulation with ecological outcomes are widely implemented.


Assuntos
Biodiversidade , Extinção Biológica , Peixes/fisiologia , Rios , Animais , Clima , Peixes/classificação , Centrais Elétricas , Sudeste dos Estados Unidos , Sudoeste dos Estados Unidos
3.
Ophthalmologica ; 240(3): 179-180, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29635232

RESUMO

PURPOSE: To describe innovative ways of removal of complicated difficult large retained intraocular foreign bodies (RIOFBs). SETTINGS: Both cases were treated at Disha Eye Hospitals, Kolkata, a tertiary eye hospital in eastern India. METHODS: Innovative approaches were taken to remove 2 difficult RIOFBs. In the first case, a large RIOFB was just beyond the posterior exit wound, trapped in the sclera. A 23-G MVR blade was used to create multiple radial releasing scleral nicks and bimanually moving the RIOFB into the vitreous cavity using a bent-tip 24G needle and magnet, and the RIOFB was removed through the limbal section. In the second case, a 21-mm long thick nail was deeply embedded in the superior sclera with partial localised retinal detachment with its bulbous end just behind the clear lens. A lasso technique was used to remove the RIOFB without lens touch. RESULTS: In the first case, the patient finally achieved logMAR 0.2 vision after silicone oil removal and glued scleral fixation of the intraocular lens. In the second case, the patient finally achieved logMAR 0.3 vision after silicone oil removal and phacoemulsification with intraocular lens implantation. CONCLUSION: Each case of RIOFB is unique and challenging. Here, innovative techniques are helpful to rescue these difficult RIOFB situations, which can result in excellent outcomes.


Assuntos
Corpos Estranhos no Olho/cirurgia , Ferimentos Oculares Penetrantes/cirurgia , Procedimentos Cirúrgicos Oftalmológicos , Esclera/lesões , Tamponamento Interno , Fluorocarbonos/administração & dosagem , Humanos , Técnicas de Sutura
4.
J Pharm Bioallied Sci ; 16(Suppl 1): S745-S747, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38595573

RESUMO

Background: This research study aimed to evaluate and compare the capability of four various bite registration materials to reproduce precise interocclusal relationships in the vertical dimension. Materials and Methods: Ideal maxillary and mandibular casts were mounted on the semi-adjustable articulator in maximum intercuspation after mock tooth preparation on 46, 47, and 48. Models were scanned by the Medit T500 Dental Lab Scanner, and initial reading was noted at the predetermined points. Ten interocclusal bite registrations were made using four materials (CADbite, Jet Bite, Ramitec, and Aluwax). The mandibular model was demounted and again remounted using the interocclusal records, and the final reading was noted after scanning. Results: Ramitec showed superior results when compared to polyvinyl bite registration material and Aluwax, but the differences between Ramitec, CADbite, and Jet Bite were nonsignificant. Conclusions: Although all four materials are suitable for clinical use, elastomeric materials showed superior results. In that, polyether was found to be the best.

5.
Clin Ophthalmol ; 18: 1819-1828, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38948341

RESUMO

Purpose: This study investigates the efficacy of transitioning patients with neovascular age-related macular degeneration (nAMD) from aflibercept (T1) to biosimilar ranibizumab (T2), an approach not previously documented in literature. Methods: In this multicenter observational study, patients over 50 years of age with nAMD were shifted from intravitreal aflibercept (IVI AFL) to biosimilar ranibizumab (B-RBZ) due to financial constraints. This study employed standardized ophthalmological methods to assess visual acuity (VA), central macular thickness (CMT), and subretinal and intraretinal fluid. Statistical analyses included paired t-tests, Wilcoxon signed-rank tests, and linear regression. Results: A total of 29 eyes (12 males and 17 females) were analyzed. Mean age was 72.55 ±6.43 years. VA improved significantly during T1, with a mean increase from 55.0 ± 10.2 to 70.0 ± 8.5 ETDRS letters at the switch time point (p < 0.01), then a slight decrease to 62.3 ± 8.9 at 12 months (p < 0.05) was noted during T2. The mean CMT decreased notably from 400 ± 50 to 290 ± 45 µm at the switch. The final CMT at 12 months after switching to B-RBZ was 280 ± 40 µm (p < 0.01). There was a significant decrease in the retinal and intra retinal fluid during T1, followed by a gradual increase during T2. A significant correlation (p < 0.05) was noted between the presence of intraretinal fluid and increased injection frequency of B-RBZ. Conclusion: The switch from IVI AFL to IVI B-RBZ in patients with nAMD demonstrated efficacy in maintaining the VA and macular anatomy, with some challenges in fluid management.

6.
Indian J Ophthalmol ; 72(7): 1001-1006, 2024 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-38622856

RESUMO

PURPOSE: To assess the safety and efficacy of intravitreal Aflibercept (IVA) versus dexamethasone (DEX) implant for treating recalcitrant diabetic macular edema (DME) in pseudophakic eyes at 1-year follow-up. DESIGN: Retrospective comparative case series. PARTICIPANTS: Data of all patients diagnosed with DME between January 2019 and December 2021, who underwent 4-monthly doses of intravitreal ranibizumab but had persistent DME [central macular thickness (CMT) within 10% of baseline value] were extracted from a computerized database. Of these, only pseudophakic eyes that underwent either IVA or DEX implant and had at least 1-year follow-up were included for analysis. METHODS: DEX implant was preferred before December 2020 and IVA after this time point. In the IVA group, patients were followed up every month while DEX were followed at least every 3 months. Reinjections were considered when vision dropped by at least 1 Snellen's line or CMT increased by at least 10% from the previous visit in both groups. MAIN OUTCOME MEASURES: Comparison of change in vision and CMT at 1-year follow-up in DEX versus IVA groups. RESULTS: Eighty-four eyes of 84 patients aged 54.4 + 4.4 years were included, 39 (46%) received DEX and 45 (54%) received IVA. Groups were comparable for baseline vision and CMT. Vision improved equally in both groups from 0.83 + 0.15 logMAR to 0.52 + 0.10 logMAR at 3 months ( P < 0.01) and then stabilized till 1 year. However, eyes in the IVA group were 6.5 times more likely (Odds ratio = 6.45, 95% CI = 1.3 - 31.9) to achieve >3-line improvement in vision. The CMT reduction was also comparable between groups (-169 + 51 in DEX vs. -174 + 49 in IVA, P = 0.67). More eyes in the IVA group required >3 injections (91% vs. 69% in DEX, P = 0.01). The IOP was significantly higher at 6 and 9 months in the DEX group and 5 eyes (13%) required IOP lowering medications. CONCLUSION: In pseudophakic eyes with recalcitrant DME not responding to ranibizumab, switching to IVA or DEX implant results in equal visual improvement and CMT reduction. Though >3-line improvement occurs more frequently with IVA, this comes at the expense of a greater number of injections and follow-up visits.


Assuntos
Inibidores da Angiogênese , Dexametasona , Retinopatia Diabética , Implantes de Medicamento , Glucocorticoides , Injeções Intravítreas , Edema Macular , Pseudofacia , Receptores de Fatores de Crescimento do Endotélio Vascular , Proteínas Recombinantes de Fusão , Acuidade Visual , Humanos , Edema Macular/tratamento farmacológico , Edema Macular/etiologia , Edema Macular/diagnóstico , Proteínas Recombinantes de Fusão/administração & dosagem , Dexametasona/administração & dosagem , Masculino , Retinopatia Diabética/tratamento farmacológico , Retinopatia Diabética/diagnóstico , Retinopatia Diabética/complicações , Feminino , Estudos Retrospectivos , Acuidade Visual/fisiologia , Receptores de Fatores de Crescimento do Endotélio Vascular/administração & dosagem , Índia , Glucocorticoides/administração & dosagem , Pessoa de Meia-Idade , Seguimentos , Pseudofacia/tratamento farmacológico , Pseudofacia/complicações , Resultado do Tratamento , Inibidores da Angiogênese/administração & dosagem , Tomografia de Coerência Óptica/métodos , Idoso , Fatores de Tempo , Fator A de Crescimento do Endotélio Vascular/antagonistas & inibidores
7.
Oman J Ophthalmol ; 17(2): 234-236, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39132119

RESUMO

PURPOSE: The purpose of this study was to assess the safety and efficacy of large-scale use of vancomycin injection in an infusion bottle during vitreoretinal procedures. MATERIALS AND METHODS: This was a retrospective evaluation of all vitreoretinal procedures done in the last 70 months, where intraoperatively vancomycin injection (0.2 mg/mL) was used in an infusion bottle prophylactically as standard care. Vitreoretinal procedures were categorized as major (duration >30 min), minor (duration <30 min), and silicone oil removal. Postoperatively, a detailed ocular examination was done to rule out hemorrhagic occlusive retinal vasculitis (HORV) or signs of postoperative bacterial endophthalmitis. RESULTS: Over the last 70 months, a total of 31,720 vitreoretinal procedures were performed, which included 24,371 major vitreoretinal procedures, 1401 minor vitreoretinal procedures, and 5948 silicone oil removal cases. None of these cases developed HORV or bacterial endophthalmitis. CONCLUSION: Vancomycin (0.2 mg/mL) in infusion fluid during vitreoretinal procedures is safe and can be advocated as a prophylactic measure against postvitrectomy bacterial infections.

8.
Saudi Dent J ; 36(3): 420-427, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38525181

RESUMO

Background: This review aimed to comprehensively investigate the impact of Hormone Replacement Therapy (HRT) on implant osseointegration and bone loss. The study considered factors such as HRT type, osteoporosis, smoking, and diabetes mellitus, and analysed the available literature to provide insights into the association between HRT and implant outcomes. Methods: Multiple databases were utilized, and studies with diverse designs and methodologies were included that examined the relationship between HRT and implant osseointegration. The selected studies were analyzed and relevant data on implant success rates, bone loss, and other correlations was extracted. Results: The review findings indicate that HRT has a detrimental impact on implant osseointegration, as evidenced by lower implant success rates and increased bone loss in HRT-treated individuals. The odds ratio analysis further strengthens this association, with significant values of 0.59 (95% CI: 0.50-0.70) and 0.64 (95% CI: 0.54-0.76), indicating a higher likelihood of implant failure in HRT-treated patients., highlighting the need for caution when considering HRT as a treatment option in patients undergoing implant procedures. Smoking and diabetes mellitus were also found to significantly affect implant outcomes, emphasizing the importance of addressing these factors in patient management. Conclusion: The assessments demonstrate that HRT adversely affects implant osseointegration and increases bone loss. The results suggest the importance of considering the potential negative impact of HRT on implant outcomes and the need for thorough patient evaluation and management. Further research is warranted to explore the underlying mechanisms, assess the impact of specific HRT types and dosages, and evaluate preventive strategies to mitigate the detrimental effects of HRT on implant success.

9.
Am J Ophthalmol Case Rep ; 36: 102152, 2024 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-39263686

RESUMO

Purpose: To compare the safety and efficacy of aflibercept with brolucizumab for recalcitrant diabetic macular edema (DME). Observations: At week 52, no significant visual improvement was noted in the eyes treated with either brolucizumab (P = 0.527) or aflibercept (P = 0.393). The CMT decreased significantly after brolucizumab therapy (P = 0.012), but not with aflibercept (P = 0.284) at 52 weeks. The proportion of patients with IRF and SRF reduced significantly in both arms. The mean number of brolucizumab injections was significantly lower (3.93[±1.28]) than aflibercept (4.75[±1.62]) (P = 0.037) over the 52 weeks. At 52 weeks, 76.67 % of eyes treated with brolucizumab attained full macular dryness (CMT<300 µm with absence of SRF and IRF) compared to 50 % of eyes treated with aflibercept (P = 0.036). Subconjunctival hemorrhage was the only adverse event observed in the study (P = 0.701); no other systemic or ocular adverse events, such as intraocular inflammation, were reported. Conclusion and importance: The BRADIR study suggests that brolucizumab might have an edge over aflibercept in visual and anatomical outcomes that lasted 52 weeks with reduced injection frequency in case of recalcitrant DME.

10.
Proc Natl Acad Sci U S A ; 107(50): 21263-70, 2010 Dec 14.
Artigo em Inglês | MEDLINE | ID: mdl-21149727

RESUMO

Increasing human appropriation of freshwater resources presents a tangible limit to the sustainability of cities, agriculture, and ecosystems in the western United States. Marc Reisner tackles this theme in his 1986 classic Cadillac Desert: The American West and Its Disappearing Water. Reisner's analysis paints a portrait of region-wide hydrologic dysfunction in the western United States, suggesting that the storage capacity of reservoirs will be impaired by sediment infilling, croplands will be rendered infertile by salt, and water scarcity will pit growing desert cities against agribusiness in the face of dwindling water resources. Here we evaluate these claims using the best available data and scientific tools. Our analysis provides strong scientific support for many of Reisner's claims, except the notion that reservoir storage is imminently threatened by sediment. More broadly, we estimate that the equivalent of nearly 76% of streamflow in the Cadillac Desert region is currently appropriated by humans, and this figure could rise to nearly 86% under a doubling of the region's population. Thus, Reisner's incisive journalism led him to the same conclusions as those rendered by copious data, modern scientific tools, and the application of a more genuine scientific method. We close with a prospectus for reclaiming freshwater sustainability in the Cadillac Desert, including a suite of recommendations for reducing region-wide human appropriation of streamflow to a target level of 60%.


Assuntos
Clima Desértico , Água Doce , Abastecimento de Água , Agricultura/métodos , Conservação dos Recursos Naturais , Ecossistema , Humanos , Crescimento Demográfico , Sudoeste dos Estados Unidos , Movimentos da Água
11.
Cureus ; 15(11): e49071, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-38130512

RESUMO

The goal of modern dentistry is to restore optimum oral health, function, and comfort for a patient. For an implant-supported fixed prosthesis, these goals cannot be met if the biomechanical factors governing the success of the prosthesis are overlooked. Mandibular flexure is one such factor that needs to be considered, especially when implants are being placed posterior to the interforaminal region. If not, it can lead to problems like increased stress, bone resorption, poor fit of the prosthesis, screw loosening, and patient discomfort. The use of a split-framework prosthesis is one of the measures that could be taken to decrease the stress, ensure a passive fit of the framework, and long-term maintenance of patient comfort and function. This case report describes the oral rehabilitation of a patient using a maxillary cast partial denture and mandibular split framework fixed prosthesis to compensate for mandibular flexure.

12.
J Pharm Bioallied Sci ; 15(Suppl 2): S1016-S1019, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-37694016

RESUMO

Introduction: Salivary substitutes are gaining popularity these days because of the increase in patients with dry mouth. These substitutes must satisfy certain criteria to fulfill the patient's needs. One of these is wettability. Materials and Methods: One hundred fifty rectangular specimens of heat-cured denture base acrylic resin were prepared. A drop of test liquids (human saliva, distilled water, aqwet, saleva, and wet mouth) was placed over the test specimen and right and left contact angles were measured using optical contact angle machine. Results: All test liquids performed better than distilled water. Human saliva has the least contact angle followed by aqwet. Conclusion: Carboxymethyl cellulose base aqwet saliva substitute was found to be best having similar contact angle values to human saliva.

13.
Cureus ; 15(3): e35719, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-37025718

RESUMO

Background It is essential for dentists and technicians to work together to fabricate and create restorations that are a "perfect" shade match for a particular person. Thus, the Vitapan 3D-Master tooth shade system (Vita Zahnfabrik, Germany) was created and put into use in order to improve the accuracy of shade-selection operations. The objective was to visually assess the color of the maxillary anterior teeth in male and female subjects from various age groups in Uttar Pradesh, India. Materials and methods There were 150 patients in total, and they were divided equally into three groups of 50: Group I, which included patients aged 18 to 30; Group II, which included patients aged 31 to 40; and Group III, which included patients aged 41 to 50. Ceiling-mounted fluorescent lighting fixtures with PHILIPS 65 D tubes (OSRAM GmbH, Germany) were installed. Three medical experts provided their opinions as part of this research. The maxillary central incisor was placed next to tabs of various shades, and the doctors' final assessment was based solely on the central one-third of the face. From each of the two sample sets, a total of 30 patients were selected. Once the crown had been made from the prepared tooth of the patient, it was colored according to two shade guidelines (Vita Classic and Vita 3D Master). The three clinicians matched the shade of the manufactured crown with visual shade guides. For shade matching, a modified United States Public Health Service (USPHS) standard was employed. Results The Chi-square test was used to compare categorical variables across groups. According to the Vitapan Classic shade guide, 26% of Group I participants matched the first Hue group (A1), 14% of Group II participants matched the first Hue group (A3), and 20% of Group III participants matched the second Hue group (B2). Master shade guide for Vita 3D 26% of Group I participants matched with the second value group (2M2), 18% of Group II participants matched with the third value group (3L 1.5), and 24.5% of Group III participants matched with the third value group (3M2). Eighty percent of people who were matched to Alpha scored for crowns made using the Vita 3D Master shade guide, while 94.1% of people who were matched to Charlie scored for crowns made using the Vitapan Classic shade guide in a comparison of the two shade guides. Conclusion The majority of the shades obtained from the Vita 3D master shade guide were found to be 1M1 and 2M1 in the younger patients, 2M1 and 2M2 in the second age group, and 3L 1.5, 3M2 in the older age group. In contrast, the Vitapan Classic shade guide revealed A1, A2, A3, B2, C1, D2, and D3 as the predominant shades.

14.
Clin Ophthalmol ; 17: 1067-1076, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37064960

RESUMO

Purpose: To analyse outcomes of innovator ranibizumab (IRM) (Lucentis) and biosimilar ranibizumab (BRM) (Razumab) in Indian eyes with neovascular age-related macular degeneration (nAMD). Methods: Retrospective observational study in nAMD patients, who were treated with IRM or BRM (3 loading doses followed by pro re nata (PRN). Primary outcome measures were change in best corrected visual acuity (BCVA) and central macular thickness (CMT) along with safety analysis. Secondary outcomes measures were changes in the subretinal fluid (SRF) and intraretinal fluid (IRF). Results: Inclusion criteria were satisfied in 164 eyes (60.74%). A total of 87 eyes were treated with IRM, and 77 eyes received BRM. Baseline BCVA was 0.57±0.27 logMAR in IRM group and 0.61±0.25 in the BRM group. At 3, 6, 9, and 12 months BCVA was 0.27±0.22 (p<0.0001), 0.34±0.23 (p<0.0001), 0.39±0.25 (p<0.0001), and 12 months 0.41±0.23 (p<0.0001) in the IRM group and 0.24±0.16 (p<0.0001), 0.27±0.16 (p<0.0001), 0.34±0.17 (p<0.0001), 0.38±0.18 (p<0.0001) in the BRM group. Baseline CMT was 420.39±54.45 µm in IRM group and 407.82±53.07 µm in BRM group. At 3, 6, 9, and 12 months, CMT decreased to 258.28±20.4 µm (p<0.0001), 268.38±19.5 µm (p<0.0001), 269.51±32.41 µm (p<0.0001), and 278.28±16.56 µm (p<0.0001) in the IRM group and 258.84±17.47 µm (p<0.0001), 265.69±17.29 µm (p<0.0001), 273.64±23.13 µm (p<0.0001), and 283.09±19.66 µm (p<0.0001) in the BRM group. Similar improvements in IRF and SRF levels in the patients were noted in both groups. Required number of doses of IRM and BRM was similar over the 12 month period in both groups. A similar profile of adverse events was noted in both the groups. Conclusion: Intravitreal injection of IRM and BRM show similar efficacy and safety in Indian eyes with nAMD.

15.
Eye (Lond) ; 37(14): 2915-2920, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-36754984

RESUMO

INTRODUCTION: The incidence of post vitrectomy endophthalmitis (PVE) is reported to be between 0.02 and 0.84%. Resterilization of single use instruments is a common practice amidst developing countries to make it more affordable to the patients by reducing the cost of the surgery and also reduce the environmental hazard. The aim of our study is to evaluate the incidence of PVE amidst existing sterilization practices of reused instruments in multiple vitreoretinal centres in India. METHODOLOGY: Centres with an endophthalmitis tracking system were invited to participate in a survey. Twenty-five centres were sent a questionnaire via email. The questionnaire included details about the institution, number of vitrectomies performed in a year, sterilization practices followed pre-operatively, intraoperatively and postoperatively, incidence of endophthalmitis and instrument reuse policies. RESULTS: A total of 29 cases of endophthalmitis were reported out of the 47,612 vitrectomies performed across various centres. The mean incidence of endophthalmitis was 0.06%. There was no difference in the rates of endophthalmitis based on various pre-operative, intraoperative or postoperative prophylactic measures. Nearly 80% of the centres change most of the instruments after every case, while the rest reused. The mean number of times a cutter was being reused until discarded was 4.7. Nearly 76% followed a performance-based protocol, and the remaining 24% had a fixed protocol for the number of times an instrument can be reused before discarding it. CONCLUSION: PVE rates are not significantly different in India despite the multiuse of single use instruments. The purpose of this paper is not to suggest an alternate protocol but to creating one in the future with these results in mind, to rationalise the use of single use instruments, make VR surgery more affordable and also have a positive impact on the carbon footprint of consumables in surgery.


Assuntos
Endoftalmite , Infecções Oculares Bacterianas , Humanos , Vitrectomia/efeitos adversos , Vitrectomia/métodos , Complicações Pós-Operatórias/etiologia , Incidência , Infecções Oculares Bacterianas/etiologia , Estudos Retrospectivos , Endoftalmite/epidemiologia , Endoftalmite/etiologia , Endoftalmite/prevenção & controle , Índia/epidemiologia
16.
Int J Appl Basic Med Res ; 12(3): 217-219, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36131853

RESUMO

The eyes are a vital organ that not only allows us to see but also allows us to express ourselves. The loss of an eye has a debilitating effect on a patient's mentality. Due to injuries, pathology, or tumor, a natural eye is surgically removed through enucleation, evisceration, or exenteration. Implant-retained and acrylic eye prosthesis is used by a maxillofacial prosthodontist to restore the patient's quality of life in such rehabilitation circumstances. A removable acrylic prosthesis is recommended over an implant-retained prosthesis due to various reasons such as remaining orbital rim, comorbidity associated with implant placement, healing time, and cost considerations. We present an instance of a bespoke acrylic scleral shell prosthesis that demonstrated outstanding retention and esthetics.

17.
Clin Ophthalmol ; 16: 4303-4313, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36583092

RESUMO

Purpose: To report the 52-week real-world efficacy and safety outcomes of brolucizumab therapy for neovascular age-related macular degeneration (nAMD) in Indian eyes. Patients and Methods: A retrospective, multicentre chart analysis of 82 eyes of 82 patients with nAMD (switch therapy: 65 eyes; treatment-naïve: 17 eyes) with 52-week follow-up data was performed. Pro-re-nata re-treatment was offered based on visual and tomographic criteria. Changes in best-corrected visual acuity (BCVA), intraretinal fluid (IRF), subretinal fluid (SRF), central-subfield thickness (CST), and pigment epithelial detachment (PED) were the key outcome measures, coupled with the safety profile. Results: The mean age of the study population was 67.65 (±10.67) years, with 57 male patients (69.5%). The study's mean number of injections was 4.8 (± 0.77). After brolucizumab therapy, the BCVA improved significantly at weeks 4 (P<0.001), and maintained up to week 52 (P<0.001). The CST also reduced significantly at all the visits (Baseline: 413.6 ± 64.6 µm; 52-week: 292.37 ± 13.5 µm; P<0.001). Significantly fewer eyes demonstrated residual SRF (P<0.001) and IRF (P<0.001) at all visits, starting with week 12 and continuing until week 52. The PED resolution was significant from week 24 through week 52 (P=0.004). Each of the 82 eyes received four injections of brolucizumab, with 63.4% (52 eyes) receiving a fifth dose and only 17.1% requiring a sixth. Mild intraocular inflammation (IOI) was seen in three eyes (3.66%) that resolved conservatively. One patient (1.2%) developed mild fever that subsided with oral medications. Conclusion: The 52-week BRAILLE study demonstrates that brolucizumab is effective and safe in nAMD eyes in a real-world setting. Brolucizumab treatment can reduce the therapeutic burden in patients with nAMD due to its rapid, sustained efficacy and favourable safety profile.

18.
Ophthalmol Ther ; 11(2): 629-638, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-35075621

RESUMO

INTRODUCTION: To compare the efficacy of innovator ranibizumab (iRBZ-Accentrix, Novartis, India) vs. biosimilar ranibizumab (bRBZ, Razumab-Intas, India) in eyes with diabetic macular edema (DME) in an Indian population. METHODS: Data of patients with DME who underwent at least three injections of iRBZ or bRBZ and had a minimum of 6 months follow-up were obtained from an electronic database. Choice of injection depended upon the patient. Pro re nata (PRN) protocol from baseline was used with reinjections advised if the central macular thickness (CMT) was at least 300 µm and best corrected visual acuity (BCVA) was 20/40 or worse. Primary outcome measure was comparison of change in BCVA at 6 months between iRBZ and bRBZ. RESULTS: We included 264 eyes in the iRBZ group and 69 eyes in bRBZ group, which were comparable for baseline characteristics. Mean BCVA improved from 0.64 ± 0.39 logMAR to 0.47 ± 0.31 logMAR (p < 0.001) in the iRBZ group and from 0.71 ± 0.42 logMAR to 0.50 ± 0.29 logMAR in the bRBZ group (p < 0.001) at 6 months. There were no differences in BCVA between the two groups (p > 0.05 for all time points). The CMT reduction in the iRBZ group (120 ± 196 µm) was comparable to that in the bRBZ group at 6 months (105 ± 187 µm) (p = 0.69). There was no difference in the mean number of injections taken (3.81 ± 1.2 in iRBZ vs. 3.55 ± 1.2 in bRBZ) (p > 0.05) between groups. Vision at baseline was the only factor associated with vision at last follow-up after adjusting for CMT at baseline, type of injection, and number of injections. CONCLUSIONS: Biosimilar RBZ is similar to innovator RBZ in improving vision and reducing CMT in eyes with DME in the short term.

19.
Am J Ophthalmol Case Rep ; 24: 101197, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34504981

RESUMO

PURPOSE: To report the efficacy of intravitreal injection (IVI) of brolucizumab for recalcitrant diabetic macular edema (DME) in a real-world setting. OBSERVATIONS: This was a single-center, prospective uncontrolled non-randomized case series. Three eyes with recalcitrant DME, who have received a minimum of ten intravitreal anti-vascular endothelial growth factor (anti-VEGF) injections, underwent IVI brolucizumab and were followed-up for minimum of 16 weeks. Patients underwent best-corrected visual acuity (BCVA) testing, ophthalmic examination, and optical coherence tomography at baseline and all the scheduled follow-up visits (Weeks 4, 8, 12, and 16). All three patients demonstrated notable improvement in BCVA and reduction in the fluid on SD-OCT lasting up to week 12. At week 16, all three eyes maintained the visual acuity gains. However, early increase in fluid was noted in all the three cases, for which second dose of IVI brolucizumab was planned. No ocular or systemic adverse events were noted in any of the cases. CONCLUSIONS AND IMPORTANCE: In this real-world case series, treatment with IVI brolucizumab exhibited excellent visual acuity outcomes lasting up to 16 weeks for the treatment of recalcitrant DME. Single dose IVI brolucizumab achieves good anatomical improvement based on SD-OCT persisting up to 12 weeks, followed by early recurrence of fluid at week 16. The results did not show any ocular or systemic safety concerns for IVI brolucizumab.

20.
Cureus ; 13(1): e13019, 2021 Jan 30.
Artigo em Inglês | MEDLINE | ID: mdl-33665046

RESUMO

This study aims to describe the clinical profile of severe vaso-occlusive retinal disorders in patients with systemic lupus erythematosus (SLE) and it is a retrospective case series. The clinical characteristics of three patients with SLE with vascular occlusions in four eyes were described. Branch retinal artery occlusion (BRAO) was present in all three patients with combined non-ischemic central retinal vein occlusion (NICRVO) in one patient and evolving ischemic CRVO in another patient. Additional branch retinal artery insufficiency was observed in the other eye of a patient with BRAO. Antinuclear antibody (ANA) titer was elevated in all patients. One patient had a positive lupus anticoagulant with elevated activated partial thromboplastin time (aPTT), and concurrent homocysteinemia was present in another patient. Intravitreal anti-vascular endothelial growth factor (ranibizumab) injection was administered to two eyes. Intravenous methyl prednisolone (IVMP) injection along with oral azathioprine was used in all patients with the need for anticoagulation in two patients along with SLE treatment. Vision in two eyes did not improve to the functional level despite aggressive therapy. Visually blinding severe vaso-occlusive retinopathy in the form of BRAO with or without CRVO can manifest in patients with SLE. Undetected antiphospholipid syndrome and homocysteinemia may be associated risk factors for such ophthalmic complications.

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