Danny Mammo

Dr. Danny Mammo

orcid

Research Focus & Metrics

Academic Career Length

10Years (2017-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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24 December 2019 in Ophthalmology Retina
Verified
Journal Article
Open access
AHAbdualrahman E. Hamad
Abdualrahman E. Hamad
OMOmar Moinuddin
Omar Moinuddin
MBMichael P. Blair
Michael P. Blair
SSSidney A. Schechet
Sidney A. Schechet
MSMichael J. Shapiro
Michael J. Shapiro
ECEmmanuel Y. Chang
Emmanuel Y. Chang
To investigate late retinal findings and complications of eyes with a history of retinopathy of prematurity (ROP) that did not meet treatment criteria and did not receive treatment during infancy. Retrospective, nonconsecutive, noncomparative, multicenter case series. Three hundred sixty-three eyes of 186 patients. Data were requested from multiple providers on premature patients with a history of ROP and no treatment during infancy who demonstrated late retinal findings or complications and included age, gender, gestational age and weight, zone and stage at infancy, visual acuity, current retina vascularization status, vitreous character, presence of peripheral retinal findings such as lattice retinal tears and detachments (RDs), retinoschisis, and fluorescein findings. Rate of RDs and factors conferring a higher risk of RDs. The average age was 34.5 years (range, 7-76 years), average gestational age was 26.6 weeks (range, 23-34 weeks), and average birth weight was 875 g (range, 425-1590 g). Findings included lattice in 196 eyes (54.0%), atrophic holes in 126 eyes (34.7%), retinal tears in 111 eyes (30.6%), RDs in 140 eyes (38.6 %), tractional retinoschisis in 44 eyes (11.9%), and visible vitreous condensation ridge-like interface in 112 eyes (30.5%). Fluorescein angiography (FA) was performed in 113 eyes, of which 59 eyes (52.2%) showed leakage and 16 eyes (14.2%) showed neovascularization. Incomplete vascularization posterior to zone 3 was common (71.6% of eyes). Retinal detachments were more likely in patients with a gestational age of 29 weeks or less (P < 0.05) and in eyes with furthest vascularization to posterior zone 2 eyes compared with zone 3 eyes (P = 0.009). Eyes with ROP not meeting the treatment threshold during infancy showed various late retinal findings and complications, of which RDs were the most concerning. Complications were seen in all age groups, including patients born after the Early Treatment for Retinopathy of Prematurity Study. Contributing factors to RDs included atrophic holes within peripheral avascular retina, visible vitreous condensation ridge-like interface with residual traction, and premature vitreous syneresis. We recommend regular examinations and consideration of ultra-widefield FA examinations. Prospective studies are needed to explore the frequency of complications and benefit of prophylactic treatment and if eyes treated with anti-vascular endothelial growth factor therapy are at risk of similar findings and complications.

1 September 2023 in JAMA Ophthalmology
Verified
Journal Article
Open access
PDF file
HHHong-Uyen Hua
Hong-Uyen Hua
AKAbdul-Hadi Kaakour
Abdul-Hadi Kaakour
ARAleksandra Rachitskaya
Aleksandra Rachitskaya
SSSunil Srivastava
Sunil Srivastava
SSSumit Sharma
Sumit Sharma
DMDanny Mammo
Danny Mammo
Importance: Language-learning model–based artificial intelligence (AI) chatbots are growing in popularity and have significant implications for both patient education and academia. Drawbacks of using AI chatbots in generating scientific abstracts and reference lists, including inaccurate content coming from hallucinations (ie, AI-generated output that deviates from its training data), have not been fully explored.Objective: To evaluate and compare the quality of ophthalmic scientific abstracts and references generated by earlier and updated versions of a popular AI chatbot.Design, Setting, and Participants: This cross-sectional comparative study used 2 versions of an AI chatbot to generate scientific abstracts and 10 references for clinical research questions across 7 ophthalmology subspecialties. The abstracts were graded by 2 authors using modified DISCERN criteria and performance evaluation scores.Main Outcome and Measures: Scores for the chatbot-generated abstracts were compared using the t test. Abstracts were also evaluated by 2 AI output detectors. A hallucination rate for unverifiable references generated by the earlier and updated versions of the chatbot was calculated and compared.Results: The mean modified AI-DISCERN scores for the chatbot-generated abstracts were 35.9 and 38.1 (maximum of 50) for the earlier and updated versions, respectively (P = .30). Using the 2 AI output detectors, the mean fake scores (with a score of 100% meaning generated by AI) for the earlier and updated chatbot-generated abstracts were 65.4% and 10.8%, respectively (P = .01), for one detector and were 69.5% and 42.7% (P = .17) for the second detector. The mean hallucination rates for nonverifiable references generated by the earlier and updated versions were 33% and 29% (P = .74).Conclusions and Relevance: Both versions of the chatbot generated average-quality abstracts. There was a high hallucination rate of generating fake references, and caution should be used when using these AI resources for health education or academic purposes.

9 September 2023 in Ophthalmology Retina
Verified
Journal Article
Closed access
ASAndrei Alexandru Szigiato
Andrei Alexandru Szigiato
NMNitesh Mohan
Nitesh Mohan
KTKatherine E. Talcott
Katherine E. Talcott
DMDanny Mammo
Danny Mammo
ABAmy S. Babiuch
Amy S. Babiuch
SSSumit Sharma
Sumit Sharma

12 November 2019 in Graefe's Archive for Clinical and Experimental Ophthalmology
Verified
Journal Article
Closed access
PDF file
AGArchana A. Gupta
Archana A. Gupta
DMDanny Mammo
Danny Mammo
MPMichael A. Page
Michael A. Page

7 February 2025 in Ophthalmology Retina
Verified
Journal Article
Open access
SBSuraj Bala
Suraj Bala
GBGabriel C.S. Barbosa
Gabriel C.S. Barbosa
NMNitesh Mohan
Nitesh Mohan
SSSunil K. Srivastava
Sunil K. Srivastava
PKPeter K. Kaiser
Peter K. Kaiser
DMDanny Mammo
Danny Mammo
To evaluate the short-term outcomes of patients with exudative neovascular age-related macular degeneration (nAMD) treated with high-dose aflibercept 8.0 mg (HDA), focusing on anatomical and functional changes, as well as the feasibility of extending treatment intervals in real-world clinical practice. Retrospective, noncomparative cohort study. 219 eyes from 184 patients with nAMD who received at least three HDAs between August 2023 and October 2024. Patients included in this study were either treatment-naïve or had been previously treated with other anti-VEGF agents. Clinical outcomes, including best-corrected visual acuity (BCVA) and macular OCT parameters, were evaluated at baseline and after each HDA. The primary outcome was the proportion of eyes able to sustain an 8 ± 1 week or longer treatment interval without anatomical deterioration. Secondary outcomes included anatomical and functional changes. The average follow-up time was 22.9 ± 4.9 weeks. 209 eyes (95.4%) were previously treated, and 10 eyes (4.6%) were treatment-naïve. After the first three injections, 206 eyes (94.1%) received a fourth HDA and 70 eyes (31.9%) received a fifth HDA. 102 eyes (46.6%) of the total cohort with an interval shorter than 8 weeks after three initial injections had persistent macular fluid. 24 eyes (11.0%) were switched to another anti-VEGF agent. Overall, the mean BCVA was 61.9 ± 21.7 ETDRS letters at baseline and 61.7 ± 22.6 at the final visit, with no statistically significant difference observed (p = 0.934). Central subfield thickness and pigment epithelial detachment height remained stable. Significant reductions were observed in subretinal (54.3% to 41.1%, p = 0.006) and intraretinal fluid (53.9% to 39.3%, p = 0.002). Among previously treated eyes, the mean pre-switch treatment interval was 5.8 ± 2.5 weeks and increased to 7.4 ± 2.2 weeks after the three initial injections (p < 0.0001). HDA demonstrated stable BCVA and significant reductions in macular fluid during the follow-up period. A considerable proportion of patients were unable to extend treatment intervals to at least 8-weeks due to persistent macular fluid. These findings suggest that HDA maintains functional stability while improving anatomic outcomes, though real-world challenges in managing chronic nAMD may limit the ability to extend treatment intervals.

1 February 2024 in Ophthalmology
Verified
Journal Article
Open access
DMDanny Mammo
Danny Mammo
KWKaren Wai
Karen Wai
EREhsan Rahimy
Ehsan Rahimy
CPCarolyn K. Pan
Carolyn K. Pan
SSSunil K. Srivastava
Sunil K. Srivastava
PMPrithvi Mruthyunjaya
Prithvi Mruthyunjaya
To assess an association between cutaneous keloids, hypertrophic scarring, and fibrosis (KHF) and risk of postoperative proliferative vitreoretinopathy (PVR) after rhegmatogenous retinal detachment (RRD) repair. Retrospective, population-based cohort study. Patients aged ≥ 18 years who underwent initial retinal detachment (RD) repair with pars plana vitrectomy with or without scleral buckle (SB) (Current Procedural Terminology [CPT] 67108), pneumatic retinopexy (67110), and primary SB (67107) from January 1, 2003, to March 1, 2023. A de-identified electronic health record database through TriNetX, a global health research network, was used to analyze patients. Patients were queried for International Classification of Diseases, 10th Revision (ICD-10) codes L91.0 (hypertrophic scar) and L90.5 (scar conditions and fibrosis of skin). Frequency of subsequent diagnosis of PVR (H35.2) and CPT codes for secondary surgery including complex RD repair (67113) were determined. Patients with proliferative diabetic retinopathy (PDR) (ICD-10 H10.35/H11.35) were excluded. Descriptive statistics (Z-test) and propensity score matching (PSM) were used to match for age, sex, and race. Prevalence of H35.2 and CPT 67113 within 180 days after RRD repair in the KHF cohort versus the non-KHF cohort. Among patients with CPT 67108, 1061 in each cohort (KHF and non-KHF) were analyzed after PSM. The mean (standard deviation) age was 60.7 (15.2) years. Within 180 days, 10.1% of patients in the KHF cohort and 3.4% in the non-KHF cohort had a diagnosis of PVR (H35.2) (P < 0.001, odds ratio [OR], 3.2; 95% confidence interval [CI], 2.13-4.71). A total of 8.3% of patients in the KHF cohort and 5.4% of patients in the non-KHF cohort underwent complex RD repair (CPT 67113) (P = 0.008; OR, 3.2; 95% CI, 1.13-2.25). When including all RD repair types (CPT 67108, 67110, 67107), the rate of PVR diagnosis was still significantly greater in the KHF cohort than in the non-KHF cohort (9.0% vs 4.2%, P < 0.01; OR, 2.28; 95% CI, 1.64-3.16). A dermatologic history of KHF may be a risk factor for PVR after RD repair. Proprietary or commercial disclosure may be found after the references.