13 results on '"Zhang, Matthew"'
Search Results
2. Solitary sclerotic fibroma of the palpebral conjunctiva: a unique presentation of a rare entity.
- Author
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Melachuri, Samyuktha, Zhang, Matthew, Seethala, Raja R., and Fu, Roxana
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BENIGN tumors , *CONJUNCTIVA , *FIBROMAS , *CELL proliferation , *EYELIDS - Abstract
Sclerotic fibroma (SF) is an uncommon yet benign tumor that may occasionally be associated with Cowden's disease that presents as an asymptomatic, well-circumscribed lesion. We present a rare case of a patient with a solitary SF of the palpebral conjunctiva. The patient was an 85-year-old male who presented with a right lower lid nodule that was initially treated as a chalazion. Excision yielded a dense mass that was sent to pathology for evaluation. Histologically, the lesion showed a bland storiform spindle cell proliferation embedded in a sclerotic stroma with prominent clefting. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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3. Breaking the mold: a case of recalcitrant eyelid subconjunctival infection by Exophilia Phaeomuriformis.
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Froines, Colin P., Connor, Nathe, Li, Emily, Yoda, Rebecca A., Gonzalez-Cuyar, Luis F., Lu, G. Nina, Fu, Roxana, and Zhang, Matthew
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EYELIDS ,ORAL drug administration ,VISION disorders ,SURGICAL excision ,INFECTION - Abstract
While a rare ophthalmic pathogen, infections from Exophilia spp. are increasingly identified and have been associated with catastrophic vision loss. In this case report we present a previously undescribed manifestation of the melanin-producing fungus Exophilia Phaeomuriformis to the lower eyelid, establish an effective treatment, and review related cases. Previous cases of ophthalmic E. Phaeomuriformis were confined to the cornea and included iatrogenic tissue trauma. This case shares neither associations however includes a remote SJS history that likely led to changes in conjunctival tissue integrity. Previous cases of Exophilia spp. infecting the eyelid both included surgical source control and adjuvant antibiotic. In this case, topical therapy was deferred due to SJSrelated ocular cicatricial disease. Fortunately, a full resolution was achieved with surgical resection and oral antifungal treatment. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
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4. Orbital Subperiosteal Abscess: The Role of Nonsurgical Management Among Adolescents and Adults.
- Author
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Li, Emily, Chambers, Christopher, Amadi, Arash J., Zhang, Matthew, Van Brummen, Alexandra, and Chang, Shu-Hong
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CELLULITIS ,ADULTS ,ABSCESSES ,TEENAGERS ,RAPD technique ,VISUAL acuity ,DEBRIDEMENT - Abstract
To investigate the role of nonsurgical management in the treatment of orbital cellulitis complicated by subperiosteal abscess (SPA) in adolescent and adult populations. A retrospective cohort study to assess the demographic, clinical, and outcome profiles of adolescent and adult patients with orbital SPA treated nonsurgically versus those who received surgical intervention. Primary outcome measures included hospitalization length and best-corrected visual acuity (BCVA) in the final evaluation. The study comprised 76 patients diagnosed with SPA in the setting of orbital cellulitis. Twelve were stratified into the nonsurgical cohort, while 64 represented the surgical group. Sinusitis was the most prevalent risk factor among both populations, and the rate did not differ significantly. SPA was located medially at a significantly higher rate in the nonsurgical cohort compared with the surgical. No patients in the nonsurgical population had a relative afferent pupillary defect (RAPD) on presentation. The proportion of patients who received adjunctive systemic corticosteroid therapy was comparable in both groups. Hospitalization length was significantly higher in the surgery cohort. BCVA in the final evaluation was favourable in both groups. Sinusitis subgroup analysis including eight nonsurgical patients produced overall consistent results. Findings from the largest study of orbital cellulitis complicated by SPA to date demonstrate a role for nonsurgical management in adolescent and adult patients who present with a medial SPA and/or ophthalmic examination without an RAPD. Among these populations, visual prognosis is favourable whether management includes surgical debridement or not, and surgical intervention may not predict a shorter duration of hospitalization. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
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5. Trends in Anti-VEGF Injection Medicare Part B Claims among Male and Female Ophthalmologists from 2012-2016.
- Author
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Pradeep, Tejus, Melachuri, Samyuktha, Arun, Siddharth, Ravipati, Advaitaa, Wang, Serena, Zhang, Matthew, Errera, Marie Helene, and Fu, Roxana
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Background: Compared to male ophthalmologists, female ophthalmologists have significantly reduced salaries, fewer faculty roles and authored publications, garnered less federal research funding, and achieved less editorial advancement. We aimed to use the most recently available Centers for Medicare and Medicaid Services data to characterize trends and differences in anti-VEGF reimbursements coded for by male and female ophthalmologists. Methods: We used Medicare Fee-For Service Provider Utilization and Payment Data: Part B Provider public use files for 2012–2016 to quantify service and reimbursement patterns for anti-VEGF injections between male and female ophthalmologists. Five outcome variables were studied: number of providers, average Medicare payment amount, total payment, number of services, and number of Medicare beneficiaries. Results: Number of services performed per female provider was 71.2% that of a male ophthalmologist in 2012, and this percentage did not change from 2012 to 2016 (95%CI [0.63, 0.804], [0.984, 1.04], respectively). Female providers had 76.1% of beneficiaries as males in 2012, and this percentage stayed constant throughout the years (95%CI [0.69, 0.84] and [0.99, 1.03], respectively). The total payment difference between female and males was $102,175 per provider in 2012, and this gap widened by $18,292 yearly (95% CI [−162599.17, −41760.47], [−33060.35, −3524.38], respectively). Conclusion: While male and female providers saw considerable increases in aflibercept services and payments in the 5-year period, the gap between male and female reimbursements widened significantly. Moving forward, analysis of large-scale Medicare datasets provides a tangible report card on how effective our attitudes and policies are in cultivating equal opportunity. [ABSTRACT FROM AUTHOR]
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- 2021
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6. Dacryoadenitis due to gonococcal conjunctivitis complicated by corneal perforation.
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Jenkins, Thomas L., Zhang, Matthew M., Patel, Neal S., Huggins, Alison B., and Carrasco, Jacqueline R.
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CONJUNCTIVITIS , *NEISSERIA gonorrhoeae , *HOLES , *LACRIMAL apparatus - Abstract
Adnexal and periocular involvement in Neisseria gonorrhoeae (NG) infection is rare. This report describes the case of a patient with a delayed diagnosis of gonococcal dacryoadenitis with contiguous conjunctivitis and corneal involvement. She underwent extensive inpatient laboratory and infectious workup but rapidly progressed to corneal perforation requiring emergent penetrating keratoplasty prior to a positive culture confirming the diagnosis. To date, this is the first reported case of ophthalmologic NG infection with associated conjunctivitis, dacryoadenitis, and corneal perforation. [ABSTRACT FROM AUTHOR]
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- 2019
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7. Effect of Rho-kinase Inhibitor, Y27632, on Porcine Corneal Endothelial Cell Culture, Inflammation and Immune Regulation.
- Author
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Lee, Whayoung, Miyagawa, Yuko, Long, Cassandra, Zhang, Matthew, Cooper, David K. C., and Hara, Hidetaka
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RHO-associated kinases ,ENDOTHELIAL cells ,EYE inflammation ,CYTOKINES ,CELL proliferation ,MONOCYTES ,CORNEAL transplantation ,MAMMALS ,PROTEIN metabolism ,AMIDES ,ANIMALS ,APOPTOSIS ,CELL culture ,CELL physiology ,ENDOTHELIUM ,ENZYME inhibitors ,ENZYME-linked immunosorbent assay ,INFLAMMATION ,KERATITIS ,PHOSPHORYLATION ,PHOSPHOTRANSFERASES ,POLYMERASE chain reaction ,PYRIDINE ,SWINE ,WOUND healing ,VASCULAR endothelial growth factors ,ANTIBODY formation ,CHEMICAL inhibitors ,PHARMACODYNAMICS ,PHYSIOLOGY - Abstract
Purpose: To investigate the effect of the Rho-kinase inhibitor, Y27632, on pig corneal endothelial cell (pCEC) culture, and on inflammation and immune regulation of the responses of human cells to pCECs.Methods: pCECs were cultured with/without Y27632 to assess cell proliferation and in vitro wound healing assay. The level of MCP-1 and VEGF in pCECs stimulated with human TNF-α were measured. Proliferation of human PBMCs stimulated with pCECs, and cytokine production in human T cells, and monocyte migration after stimulation were investigated.Results: Y27632 promoted pCEC proliferation, prevented pCEC death, and enhanced in vitro wound healing. After stimulation, there were significantly lower levels of MCP-1 and VEGF measured in pCECs cultured with Y27632, and significantly reduced human PBMC proliferation, cytokine production, and monocyte migration.Conclusions: The application of the Rho-kinase inhibitor will be beneficial when culturing pCECs, and may provide a novel therapy to reduce inflammation after corneal xenotransplantation. [ABSTRACT FROM AUTHOR]- Published
- 2016
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8. Racial Influences of Uveitic Glaucoma: Consolidation of Current Knowledge of Diagnosis and Treatment.
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Gregory II, Anthony C., Zhang, Matthew M., Rapoport, Yuna, Ling, Jeanie D., and Kuchtey, Rachel W.
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GLAUCOMA diagnosis , *GLAUCOMA treatment , *ETIOLOGY of diseases , *UVEITIS , *SARCOIDOSIS , *TRABECULECTOMY , *UVEITIS treatment , *GLAUCOMA , *HEALTH services accessibility , *HEALTH status indicators , *POPULATION , *SYSTEMATIC reviews , *DIAGNOSIS - Abstract
Introduction: The etiology, frequency, manifestation, and treatment of uveitis and uveitic glaucoma are commonly influenced by race.Materials and Methods: This study aims to review the effect of race on the diagnosis and treatment of patients with common diseases of uveitis that may develop into glaucoma.Results: Race affects the presentation and prevalence of uveitis. Sarcoidosis, for example, is more common in Blacks than in Whites in the United States. Furthermore, Blacks more commonly have anterior segment involvement, while Whites more commonly have posterior segment involvement. In addition, treatments-such as steroid implants and trabeculectomy-in the setting of uveitis and uveitic glaucoma may have higher risk of failure in Black patients.Discussion: Over the last half-century, we have increased our understanding of the role of race in uveitis and uveitic glaucoma. Major gaps remain and further study is needed. [ABSTRACT FROM AUTHOR]- Published
- 2016
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9. Ophthalmic Disparities in Transgender Patients.
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Hollar, Matthew W., Zhang, Matthew M., and Mawn, Louise A.
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TRANSGENDER people , *DISCRIMINATION (Sociology) , *MEDICAL care , *HORMONE therapy , *PATHOLOGY , *RETINAL diseases , *DISEASES - Abstract
Transgender individuals experience unique challenges with regards to discrimination and access to health care. Further, their unique health-care needs and challenges lead to greater rates of morbidity. This article seeks to review the unique biology of transgender patients and the effects of cross-sex hormone therapy on ophthalmic and non-ophthalmic pathology. Attention is given to topics in neuro-ophthalmology, oculoplastics, and retinal disease. [ABSTRACT FROM AUTHOR]
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- 2016
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10. Gender and Racial Disparities in Cases of Autoenucleation.
- Author
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Zhang, Matthew, Tanaka, Sarah, Mercier, Michael, Hollar, Matthew, Ling, Jeanie D., Gregory, Anthony, and Barahimi, Behin
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GENDER inequality , *RACE discrimination , *ENUCLEATION of the eye , *LITERATURE reviews , *PATHOLOGICAL psychology , *DEMOGRAPHY , *POPULATION , *HEALTH equity , *SELF-mutilation , *PSYCHOLOGY - Abstract
Objective: This review demonstrates the gender and racial disparities among patients who have committed ocular autoenucleation.Design: Peer-reviewed articles were identified and reviewed on the basis of a literature search in PubMed/MEDLINE and Ovid/EMBASE databases from all available literature to date.Results: We identified 60 cases of autoenucleation published in contemporary literature with nine attempted cases. The ratio of men to women who have committed autoenucleation is 8:1. Only 28 cases of autoenucleation included confirmed reports of racial makeup. 17 out of 28 cases were White, eight out of 28 cases were Hispanic or Asian, and only three cases were Black. White patients account for 61% of the cases, while Black patients make up 11% and other races constitute 28%. The common underlying psychiatric motivations among autoenucleation patients include biblical interpretations, religious delusions, and paranoia of the eye. The most common associated psychiatric disorders among patients with autoenucleation include schizophrenia, major depressive disorder, and bipolar disorder.Conclusion: Autoenucleation largely occurs amongst male patients with active psychiatric disorders. Our findings challenge previously published reviews where the incidence of autoenucleation is reported as equal for the two sexes. A higher incidence among the White population is also suggested. This is the first time gender and racial disparity have been demonstrated with respect to autoenucleation. [ABSTRACT FROM AUTHOR]- Published
- 2016
- Full Text
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11. Racial Disparities in Corneal Transplantation Rates, Complications, and Outcomes.
- Author
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Ling, Jeanie D., Mehta, Viraj, Fathy, Cherie, Rapoport, Yuna, Zhang, Matthew M., Daniels, Anthony, and Kohanim, Sahar
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RACE discrimination in medical care ,CORNEAL transplantation ,DISEASE complications ,HEALTH outcome assessment ,SURVIVAL analysis (Biometry) ,ETHNICITY ,CORNEA diseases ,ETHNIC groups ,GRAFT rejection ,POPULATION ,HEALTH equity - Abstract
Corneal transplantation is a common type of tissue transplantation that aims to improve vision or relieve pain. Given the immune privilege of the cornea, the primary graft often has a high success rate, approaching 90%. Despite the good overall outcome of corneal transplantation in various studies, the individual graft survival rate varies, depending on the preoperative diagnosis and donor and recipient factors. Race and ethnicity have been shown to be important in other types of organ transplantation. The aim of this study was to review the available ophthalmic literature regarding any differences in rates and outcomes of corneal transplantation based on ethnicity and race. A small body of evidence suggests that race might be an important risk factor for graft rejection and graft failure. More robust studies are needed to clarify these associations. [ABSTRACT FROM AUTHOR]
- Published
- 2016
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12. Orbital subperiosteal abscess in adolescents and adults: predictors and outcomes of nonsurgical management and surgical approaches.
- Author
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Gibbons, Alison B., Van Brummen, Alexandra, Bacorn, Colin, Niknahad, Ava, Chang, Shu-Hong, Jian-Amadi, Arash, Chambers, Christopher, Zhang, Matthew, and Li, Emily
- Abstract
PurposeMethodsResultsConclusionsThe aim of this study was to assess predictors and outcomes of subperiosteal abscess (SPA) management in adolescents and adults at two tertiary care centers.This retrospective cohort study included cases of SPA from January 1 2000 to October 9 2022 at two institutions. Patients 9 years or older were categorized into surgical and nonsurgical cohorts. Surgical subgroups included those who underwent functional endoscopic sinus surgery (FESS) alone, external (transcutaneous or transconjunctival) orbitotomy alone, or combined FESS and external surgery. The presented features were assessed as potential treatment predictors. Outcomes included length of stay (LOS), final best-corrected visual acuity (BCVA), readmission rate, and reoperation rate.Of the 159 SPA cases included, 127 (79.9%) underwent surgery and 32 (20.1%) were managed nonsurgically. The nonsurgical cohort was younger (
p = .003) with smaller abscesses (p < .001) that were more likely to be medial (p < .001). The nonsurgical cohort had shorter LOS (p < .001); final BCVA and readmission rates were similarly favorable. Abscess location was correlated with surgical approach. Superior SPA that underwent FESS or external surgery alone had higher reoperation rates (57.1.0% and 58.3%, respectively) than combined (17.9%). External approach and FESS alone resulted in lower reoperation rates (15.4% and 15.0%, respectively) than combined (27.3%) for medial SPA. Subgroup analysis in the sinusitis cohort yielded similar results.A trial of nonsurgical management may be safe and effective for select patients aged 9 years and older with sinusitis-derived, medial, and small SPA. When surgery is indicated, approach should be guided by abscess location to minimize reoperation risk. [ABSTRACT FROM AUTHOR]- Published
- 2024
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13. A case of necrotizing fasciitis of the orbit secondary to <italic>Aspergillus fumigatus</italic> and mixed flora.
- Author
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Hojjatie, Sara L., Radulovich, Nicholas, Van Brummen, Alexa, Chambers, Christopher, Fu, Roxana, Mittenzwei, Rhonda, and Zhang, Matthew M.
- Abstract
A 79-year-old female presented to the emergency department for sudden-onset ocular pain, edema, and erythema around her left eye. She also had a left-sided migraine and frontal fullness for 2 weeks. She had attentive care for the diagnosis of orbital cellulitis and prompt recognition of necrotizing fasciitis. Wound cultures were positive for over 5 strains of bacteria in addition to
Aspergillus . In a combined effort by our institution’s Ophthalmology and Otolaryngology departments, the patient was successfully treated with debridement, porcine bladder matrix, antibiotics, and antifungals. The authors describe the first reported case of eyelid and periorbital necrotizing fasciitis, caused by mixed flora andAspergillus fumigatus , that showed promising wound healing with the outlined treatment paradigm. [ABSTRACT FROM AUTHOR]- Published
- 2024
- Full Text
- View/download PDF
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