7 results on '"LeTran V"'
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2. Long-Term Follow-Up of a Case of Severe Hyperglycemia Requiring Hospitalization after Third Dose of Teprotumumab: A Case Report.
- Author
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Mehta P, Angell T, LeTran V, Lin M, Nguyen A, and Zhang-Nunes S
- Abstract
Introduction: In 2020, teprotumumab became the first FDA-approved treatment for thyroid eye disease (TED). In clinical trials, hyperglycemia had been described as mild and controlled with medication. We present a case that occurred in 2020 of a 67-year-old male with TED and pre-existing glucose intolerance, who was hospitalized with severe hyperglycemia (1,059 mg/dL) after three doses of teprotumumab., Case Presentation: This patient's HbA1c was in the pre-diabetic range (6.3%) 6 months prior to initiating teprotumumab. After three doses, the patient was hospitalized with hyperosmolar hyperglycemic nonketotic syndrome and an HbA1c of 11.7%. He was diagnosed with type 2 diabetes mellitus and treated with insulin aspart mixed 70/30. He remained on this regimen for 14 months with an A1c of 6.0%. He then self-discontinued the insulin, with an A1c 4 months later measuring 5.5%. The patient's latest HbA1c approximately two and a half years after hospitalization was 6.1% on no medications., Conclusion: It appears that teprotumumab was a trigger for this transient case of diabetes, and detecting those that have underlying glucose intolerance ahead of time is important. We recommend blood glucose levels for patients with pre-diabetes prior to and ideally in the first few days after each infusion, to help determine patients at a greater risk for adverse hyperglycemic outcomes. A glucometer may be valuable for patients to self-monitor while on teprotumumab. If fasting blood glucose is ≥126 mg/dL or non-fasting glucose is >200 mg/dL, patients should be referred for further diabetes assessment and possible treatment initiation., Competing Interests: Dr. Zhang-Nunes is a consultant and a PI for a clinical trial site of Horizon Therapeutics, a company that makes teprotumumab. She is also a PI on a site for Viridian Pharmaceuticals and a co-PI for Immunovant Pharmaceuticals, which are testing other drugs for thyroid eye disease. She is also a previous consultant for Tarsus Pharmaceuticals, Sciton, Inc., and previously for Bruder., (© 2024 The Author(s). Published by S. Karger AG, Basel.)
- Published
- 2024
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3. Intrasession Repeatability and Intersession Reproducibility of Macular Vessel Parameters on Optical Coherence Tomography Angiography in Glaucomatous and Non-Glaucomatous Eyes.
- Author
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Vorperian A, Khan N, Lee J, Burkemper B, Zhou X, Grisafe D, LeTran V, Chu Z, Wong B, Xu B, Song B, Wang RK, and Richter G
- Subjects
- Fluorescein Angiography methods, Humans, Longitudinal Studies, Nerve Fibers, Reproducibility of Results, Glaucoma diagnosis, Tomography, Optical Coherence methods
- Abstract
Purpose: Using optical coherence tomography angiography (OCTA), this study compared intrasession repeatability versus intersession reproducibility of macular vessel parameters in glaucoma and non-glaucoma subjects., Methods: 6 × 6 mm
2 macular OCTA scans (Cirrus HD-OCT 5000) were acquired from glaucomatous and non-glaucomatous subjects as part of an observational, longitudinal study. Vessel area density (VAD) and vessel skeleton density (VSD) were calculated using research-based quantification software while perfusion density (PDZ ) and vessel density (VDZ ) were calculated using commercially developed software (Cirrus 11.0, Carl Zeiss Meditec). Intrasession repeatability and intersession reproducibility were determined using within-eye standard deviation (SW ), within-eye coefficient of repeatability (CRW ), within-eye coefficient of variation (CVW ), and intraclass correlation coefficients (ICC)., Results: The intrasession repeatability and intersession reproducibility for macular OCTA parameters were similar to one another for both non-glaucomatous and glaucomatous eyes. Intrasession CVW from the non-glaucoma group ( n = 73) was 1.097% for VAD, 1.007% for VSD, 2.980% for PDZ , and 2.714% for VDZ. Intersession CVW from the non-glaucoma group ( n = 55) was 1.389% for VAD, 1.279% for VSD, 2.935% for PDZ , and 2.695% for VDZ . Intrasession CVW from the glaucoma group ( n = 59) was 1.189% for VAD, 0.970% for VSD, 3.827% for PDZ , and 3.542% for VDZ . Intersession CVW from the glaucoma group ( n = 45) was 1.412% for VAD, 1.132% for VSD, 3.915% for PDZ , and 3.654% for VDZ . Non-glaucomatous intrasession ICC ranged from 0.711 to 0.824, non-glaucomatous intersession ICC ranged from 0.649 to 0.762, glaucomatous intrasession ICC ranged from 0.710 to 0.853, and glaucomatous intersession ICC ranged from 0.661 to 0.827., Conclusions: Macular OCTA scans can be a useful tool in monitoring the longitudinal progression of glaucoma due to their high repeatability and reproducibility.- Published
- 2022
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4. Longer Axial Length Potentiates Relationship of Intraocular Pressure and Peripapillary Vessel Density in Glaucoma Patients.
- Author
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Juliano J, Burkemper B, Lee J, Nelson A, LeTran V, Chu Z, Zhou G, Jiang X, Wang RK, Varma R, and Richter GM
- Subjects
- Adult, Aged, Aged, 80 and over, California epidemiology, Cross-Sectional Studies, Female, Glaucoma diagnosis, Glaucoma ethnology, Humans, Incidence, Male, Middle Aged, Severity of Illness Index, Tomography, Optical Coherence methods, Black or African American, Axial Length, Eye diagnostic imaging, Glaucoma physiopathology, Intraocular Pressure physiology, Microvascular Density physiology, Optic Disk diagnostic imaging, Retinal Vessels pathology
- Abstract
Purpose: The purpose of this study was to investigate how axial length (AL) changes the relationship of intraocular pressure (IOP) with peripapillary vessel density (pVD) in glaucoma versus non-glaucomatous eyes., Methods: A population-based, cross-sectional study of 2127 African Americans aged 40 years and older in Inglewood, California, were imaged with 6 × 6-mm optic disc optical coherence tomography angiography scans. There were 1028 healthy subjects (1539 eyes) and 65 subjects with glaucoma (86 eyes) who met inclusion criteria. A multivariable linear mixed effects regression model investigated the relationship of IOP on pVD after controlling for signal strength, retinal nerve fiber layer thickness, and age. These results were stratified by AL groups., Results: Higher IOP was a significant predictor of lower pVD among subjects with glaucoma (P = 0.009), but not among healthy subjects (P = 0.26). After stratifying by the sample median AL (23.46 mm), higher IOP was associated with lower pVD among subjects with glaucoma with longer AL (≥ 23.46 mm, P = 0.005), but not among those in the shorter AL (< 23.46 mm, P = 0.45). IOP was not significantly associated with pVD among healthy subjects in either AL stratum., Conclusions: Among subjects with glaucoma with longer AL, IOP was significantly associated with pVD. This relationship was not seen among subjects with glaucoma with shorter AL or non-glaucomatous subjects in either AL group. These findings support the hypothesis that disturbed retinal autoregulation may be present in subjects with glaucoma with longer AL. Longitudinal studies are needed to further investigate whether axial elongation increases glaucoma risk by compromising retinal autoregulation.
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- 2021
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5. Systemic Determinants of Peripapillary Vessel Density in Healthy African Americans: The African American Eye Disease Study.
- Author
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Chang R, Nelson AJ, LeTran V, Vu B, Burkemper B, Chu Z, Fard A, Kashani AH, Xu BY, Wang RK, Varma R, and Richter GM
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- Aged, Blood Pressure physiology, Capillaries pathology, Cross-Sectional Studies, Diabetes Mellitus ethnology, Female, Fluorescein Angiography, Glaucoma ethnology, Healthy Volunteers, Humans, Intraocular Pressure physiology, Male, Middle Aged, Retinal Diseases ethnology, Surveys and Questionnaires, Tomography, Optical Coherence, Visual Acuity physiology, Black or African American ethnology, Diabetes Mellitus physiopathology, Glaucoma physiopathology, Optic Disk blood supply, Retinal Diseases physiopathology, Retinal Vessels pathology
- Abstract
Purpose: To determine the relationship between systemic factors and radial peripapillary capillary (RPC) vessel density (VD) in healthy African American (AA) participants of the African American Eye Disease Study., Design: A population-based, cross-sectional study., Methods: A total of 4135 eyes from 2127 AA participants aged 40 years and older in Inglewood, California, were imaged for 6×6-mm optic disc scans on a spectral-domain optical coherence tomography angiography (OCTA) device. Of these, 1029 eyes from 1029 participants who met the inclusion and exclusion criteria were analyzed, including only 1 eye per participant. Custom software was used to quantify RPC VD. Multivariate linear regression was used to identify systemic factors associated with RPC VD with a significance level set at 0.05. The contribution of each variable to the final model was estimated with the magnitude of standardized regression coefficients (SRCs). The fit of the final model was measured by R
2 ., Results: The average RPC VD was 0.346±0.045. Controlling for signal strength, the systemic variables in the final multivariate model associated with reduced RPC VD were older age (β = -0.0123 per decade; SRC = -0.2733; P < .0001), male sex (β = -0.0067; SRC = -0.0716; P = .0060), and longer diabetes duration (β = -0.0022 per 5 years; SRC = -0.0527; P = .0427). The model R2 was 0.3689., Conclusions: Age, sex, and systemic influences, such as diabetes duration, need to be considered when assessing changes in RPC VD in glaucoma and other ocular diseases. Longitudinal studies are needed to investigate whether reduced RPC VD and the factors that affect it are associated with an increased risk of developing glaucomatous nerve damage., (Copyright © 2019 Elsevier Inc. All rights reserved.)- Published
- 2019
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6. Ankyloglossia: Last three-years of outpatient care at a tertiary referral center.
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LeTran V, Osterbauer B, Buen F, Yalamanchili R, and Gomez G
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- Ankyloglossia diagnosis, California, Female, Humans, Infant, Infant, Newborn, Lingual Frenum abnormalities, Lingual Frenum surgery, Male, Retrospective Studies, Tertiary Care Centers, Ambulatory Care statistics & numerical data, Ankyloglossia therapy, Clinical Decision-Making, Practice Patterns, Physicians' statistics & numerical data
- Abstract
Introduction: Ankyloglossia is an oral anomaly characterized by a shortened, thickened lingual frenulum that may cause reduced tongue mobility. However, the diagnosis and management of this condition has long been a debated topic. Given the paucity of high level evidence, management can be frustrating for both families and clinicians. Our study aims to examine differences in the management of ankyloglossia and investigate influencing factors at a single tertiary pediatric referral center., Methods: A retrospective chart review was completed of children less than one year of age seen in the outpatient otolaryngology clinic. Billing records were searched for ICD-9 code 750.0 (ankyloglossia) between January 2, 2015 and October 9, 2017 and data extracted from the charts of those meeting inclusion criteria., Results: A total of 266 charts were reviewed that met the inclusion criteria during the study period. 100 (38%) were female with a mean age of 2.9 months. In the final multivariate regression model, children seen by providers in Group 1 (providers with high rates of frenotomies) had 4.4 times the odds of having a frenotomy as those seen by a provider in Group 2 (providers with low rates of frenotomies) (p < 0.001, 95%CI: 2.2, 8.9), and male children had 2.5 times the odds of having a frenotomy as female children (p = 0.002, 95%CI: 1.4, 4.5)., Conclusion: In this study we identify additional variables that may influence the decision to perform a frenotomy in children with ankyloglossia. The significant impact of clinician biases in the management of ankyloglossia suggests arbitrary differences in the way these patients are managed, highlighting the lack of consensus amongst otolaryngologists and the need for clear indications and diagnostic criteria., (Copyright © 2019 Elsevier B.V. All rights reserved.)
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- 2019
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7. Ocular Determinants of Peripapillary Vessel Density in Healthy African Americans: The African American Eye Disease Study.
- Author
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Nelson AJ, Chang R, LeTran V, Vu B, Burkemper B, Chu Z, Fard A, Kashani A, Xu B, Wang R, Varma R, and Richter GM
- Subjects
- Adult, Axial Length, Eye anatomy & histology, Cross-Sectional Studies, Female, Fluorescein Angiography, Healthy Volunteers, Humans, Male, Middle Aged, Nerve Fibers, Retinal Ganglion Cells cytology, Tomography, Optical Coherence methods, Black or African American, Optic Disk blood supply, Retinal Vessels anatomy & histology
- Abstract
Purpose: The African American (AA) population has unique ocular anatomic characteristics and a disproportionately high incidence of glaucoma, which is associated with lower peripapillary vessel density (VD). This study aimed to identify ocular determinants of peripapillary VD in healthy AAs., Methods: This was a cross-sectional, population-based study of 1029 AAs, ages 40 and older. Participants underwent examination to obtain axial length (AL), IOP, central corneal thickness (CCT), mean retinal nerve fiber layer (RNFL) thickness, visual field mean deviation (MD), and 6 × 6-mm optical coherence tomography angiography scans of the optic nerve. Participants with glaucoma, vision-threatening diabetic retinopathy, or other relevant ocular disease were excluded. Prototype software was used to quantify VD. A multivariable regression model, controlling for age and signal strength, identified the ocular variables that predicted peripapillary VD. The contribution of each variable was assessed with the magnitude of standardized regression coefficients (SRC)., Results: Based on univariate regressions, AL, RNFL thickness, and MD had significant associations with peripapillary VD (all P < 0.001). In the final multivariate model, lower mean RNFL thickness (β = 0.0022, P < 0.001, SRC = 0.542) and longer AL (β = -0.0055, P < 0.001, SRC = -0.118) were associated with lower peripapillary VD, controlling for age and signal strength, with model R2 of 0.69., Conclusions: Thinner RNFL and longer AL were the most influential ocular determinants of lower peripapillary perfusion in healthy AA eyes. Additional research is needed to clarify whether longer AL increases risk of glaucoma by affecting capillary perfusion.
- Published
- 2019
- Full Text
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