Dimitrios Karagiannis

ORCID: 0000-0001-5467-4893
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About
Contact & Profiles
Research Areas
  • Retinal Diseases and Treatments
  • Glaucoma and retinal disorders
  • Astronomy and Astrophysical Research
  • Retinal and Optic Conditions
  • Ocular Diseases and Behçet’s Syndrome
  • Intraocular Surgery and Lenses
  • Nutrition and Health in Aging
  • Retinal and Macular Surgery
  • Retinal Imaging and Analysis
  • Galaxies: Formation, Evolution, Phenomena
  • Corneal surgery and disorders
  • Ocular Oncology and Treatments
  • Ocular and Laser Science Research
  • Prostate Cancer Treatment and Research
  • Adaptive optics and wavefront sensing
  • Ophthalmology and Eye Disorders
  • Cosmology and Gravitation Theories
  • Body Composition Measurement Techniques
  • Scientific Research and Discoveries
  • Gastroesophageal reflux and treatments
  • Cerebral Venous Sinus Thrombosis
  • Eosinophilic Esophagitis
  • Astronomical Observations and Instrumentation
  • Drug-Induced Ocular Toxicity
  • Fuel Cells and Related Materials

Columbia University Irving Medical Center
2023-2024

University Hospital of Larissa
2020-2024

Athens Eye Hospital
2011-2023

National and Kapodistrian University of Athens
2011-2023

Athens Medical Center
2009-2023

Agios Pavlos General Hospital
2020-2022

Otto-von-Guericke University Magdeburg
2019

NHS Lothian
2018

Western General Hospital
2018

Evangelismos Hospital
2016

The RANGE (Retrospective ANalysis of GastroEsophageal reflux disease [GERD]) study assessed differences among patients consulting a primary care physician due to GERD-related reasons in terms of: symptoms, diagnosis and management, response treatment, effects on productivity, costs health-related quality life. This subanalysis determined the impact GERD productivity work daily life.RANGE was conducted at 134 sites across six European countries (Germany, Greece, Norway, Spain, Sweden UK). All...

10.1186/1477-7525-7-90 article EN cc-by Health and Quality of Life Outcomes 2009-10-16

The impact of gastroesophageal reflux disease (GERD) on the daily lives patients managed in primary care is not well known. We report burden GERD a large population care, terms symptoms and patients' lives. RANGE (R etrospective AN alysis GE RD) was an observational study that conducted at 134 sites across six European countries. All adult subjects who had consulted their physician (PCP) during 4-month identification period were screened retrospectively those consulting least once for...

10.1186/1477-7525-7-60 article EN cc-by Health and Quality of Life Outcomes 2009-07-02

Purpose.: Tumor necrosis factor alpha (TNF)-α contributes to inflammation-associated angiogenesis. This study investigates the role of TNF-α receptors 1a and 1b in development choroidal neovascularization (CNV). Methods.: CNV was induced Tnfrsf1a−/− Tnfrsf1b−/− mice with C57Bl6/J background their wild-type (WT) (C57Bl/6J) controls by laser damage Bruch's membrane. expression RPE/choroid determined Western blot analysis. Pathologic angiogenesis estimated qualitatively quantitatively...

10.1167/iovs.09-5003 article EN Investigative Ophthalmology & Visual Science 2010-03-25

To evaluate the efficacy of intravitreal injection bevacizumab combined with photodynamic therapy (PDT) for treatment occult choroidal neovascularization (CNV) associated serous pigment epithelium detachment (s-PED) due to age-related macular degeneration (AMD).In this retrospective study, six patients (six eyes) subfoveal CNV s-PED AMD were treated PDT. All at baseline PDT followed by 1.25 mg 1 hour later. Afterwards, according findings optical coherence tomography and fluorescein...

10.1097/iae.0b013e3180ca9ad9 article EN Retina 2007-09-01

The purpose of the study is to investigate whether oxygen uptake and heart rate at rest, in Greek professional soccer players, are affected by recent injuries, as well how sleep quality affected. Forty-two male players were included divided into two groups: injurygroup (n = 22, age: 21.6 ± 5.4 years, body fat: 11.0 3.9%, total water: 64.0 2.5%) no-injurygroup 20, 24.2 5.6 10.1 2.8%, 64.3 1.8%). rest (VO2resting, mL/min/kg) (HR, bpm) recorded upright position for 3 min, predicted values...

10.3390/ijerph17134810 article EN International Journal of Environmental Research and Public Health 2020-07-03

<i>Background:</i> To report 2 cases of large subretinal haemorrhage in patients with age-related macular degeneration when the intravitreal injections were changed from bevacizumab (Avastin) to ranibizumab (Lucentis). <i>Methods:</i> Both treated initially 1.25 mg for 4 months (4 injections) and then switched 0.5 which continued another 6 months. Best-corrected visual acuity measurements, slit-lamp examination, contact lens biomicroscopy, optical coherence tomography...

10.1159/000213644 article EN Ophthalmologica 2009-01-01

<b><i>Purpose:</i></b> To report a case of spontaneous resolution long-standing serous macular detachment associated with an optic disc pit, leading to significant visual improvement. <b><i>Case Presentation:</i></b> A 63-year-old female presented 6-month history blurred vision and micropsia in her left eye. Her best-corrected acuity was 6/24 the eye, fundoscopy revealed which confirmed by optical coherence tomography (OCT). The patient offered...

10.1159/000362263 article EN cc-by-nc Case Reports in Ophthalmology 2014-03-27

Objective: To investigate prognostic factors of outcome acute obstructive pyelonephritis (AOP). Materials and Methods: Patients with AOP were prospectively evaluated logistic regression analysis was applied to identify associated the duration hospital stay occurrence sepsis septic shock. Results: Based on CT scan findings, 62 patients found have subjected emergency drainage. The main etiology obstruction lithiasis (70.9%). Double-J stent percutaneous nephrostomy introduced in 48 14 patients,...

10.1089/end.2019.0801 article EN Journal of Endourology 2020-01-31

Coronavirus Disease 2019 (COVID-19) has significantly affected different physiological systems, with a potentially profound effect on athletic performance. However, to date, such an been neither addressed nor investigated. Therefore, the aim of this study was investigate fitness indicators, along respiratory and metabolic profile, in post-COVID-19 athletes. Forty male soccer players, were divided into two groups: non-hospitalized COVID-19 (n = 20, Age: [25.2 ± 4.1] years, Body Surface Area...

10.1016/j.smhs.2022.10.004 article EN cc-by-nc-nd Sports Medicine and Health Science 2022-10-23

Objective:To describe the management of gastro-oesophageal reflux disease (GERD) in primary care, as part RANGE (Retrospective ANalysis GERD) study.Methods:Over 4 months, at 134 care practices six European countries, 12 815 patients consulted for GERD-related reasons. A random selection these was invited to enter study. Data were then collected retrospectively (from initial consultation) and prospectively a follow-up visit). This included information on GERD diagnosis, symptoms...

10.1185/03007990903314546 article EN Current Medical Research and Opinion 2009-09-28

Purpose To measure intraocular pressure (IOP) elevation 6 and 24 hours after phacoemulsification in patients with glaucoma to investigate the efficacy of brimonidine tartrate 0.2% preventing IOP rise on first postoperative day following cataract surgery. Methods In this prospective randomized single-masked study, 86 eyes 78 well-con-trolled open-angle were scheduled for Patients randomly assigned into 2 groups. Group A received 1 drop group B, which served as a control group, artificial...

10.1177/112067211002000619 article EN European Journal of Ophthalmology 2010-11-01

We describe the case of a 54-year-old white man who experienced bilateral central serous chorioretinopathy following laser in situ keratomileusis for myopia. Postoperatively, uncorrected visual acuity was 20/20 both eyes. One month later, patient reported decrease vision Dilated fundus examination, fluorescein and indocyanine green angiography, optical coherence tomography showed chorioretinopathy. Photodynamic therapy performed twice, improved. Financial Disclosure: No author has financial...

10.1016/j.jcrs.2011.01.017 article EN Journal of Cataract & Refractive Surgery 2011-04-01

The aim of the study was to investigate effect sleep quality in cognitive domains perceptual ability after exhausting exercise adolescent and adult athletes. Eighty-six male professional soccer players were included our divided into two groups: adolescents (age: 17.3 ± 0.2 yrs, body mass: 68.9 7.9 kg, fat: 9.9 3.6 %) versus adults 26.3 5.2 76.5 7.2 10.3 3.1 %). For each athlete, prior cardiopulmonary testing (CPET), anthropometric morphological characteristics recorded Pittsburgh Sleep...

10.1155/2021/5585573 article EN Journal of Sports Medicine 2021-04-11

Posterior scleritis is a relatively uncommon form of scleral inflammation the posterior segment eye. Clinical manifestations include ocular pain, headache, pain with movements, and loss vision. A rare presentation disease acute angle closure crisis (AACC) elevated intraocular pressure (IOP) secondary to anterior displacement ciliary body. Various systemic diseases have been described co-exist scleritis; however, psoriasis has not associated scleritis. Here, we present case which initially...

10.1159/000526714 article EN cc-by-nc Case Reports in Ophthalmology 2022-09-30

Abstract Background We present a case of hypertensive choroidopathy due to malignant hypertension with exudative retinal detachment as sole finding. use OCT- angiography for initial diagnosis and report findings from extensive follow up. Case presentation A 51-year-old female no past medical history, presented our clinic painless loss vision in her left eye. Fundus examination revealed only eye that was confirmed Optical Coherence Tomography. Fluorescein showed hyperfluorescent spots leakage...

10.1186/s12886-023-02970-w article EN cc-by BMC Ophthalmology 2023-05-22

Summary The clinical use of potent androgen receptor (AR) inhibitors has promoted the emergence novel subtypes metastatic castration-resistant prostate cancer (mCRPC), including neuroendocrine (CRPC-NE), which is highly aggressive and lethal 1 . These mCRPC display increased lineage plasticity often lack AR expression 2–5 Here we show that differentiation castration-resistance in CRPC-NE are maintained by activity Nuclear Receptor Binding SET Domain Protein 2 (NSD2) 6 , catalyzes histone H3...

10.1101/2023.07.18.549585 preprint EN bioRxiv (Cold Spring Harbor Laboratory) 2023-07-19

Purpose: To evaluate the efficacy and safety of oral eplerenone in cases central serous chorioretinopathy (CSCR) refractory to photodynamic therapy (PDT). Methods: 19 patients with chronic CSCR persistent subretinal fluid (SRF) were treated for 6 months, starting at a dose 25 mg/day 4 weeks then 50 5 months. All underwent visual acuity measurement optical coherence tomography (OCT), while fluorescein angiography was also performed baseline, before treatment. Resolution SRF, changes retinal...

10.1080/08820538.2019.1642920 article EN Seminars in Ophthalmology 2019-07-16

The aim of this study was to explore the role age as a prognostic factor for outcome myopic choroidal neovascularization (CNV) treatment with intravitreal ranibizumab injections.A retrospective review charts patients treated injections CNV done. Patients other ophthalmic disease were excluded. followed at least 2 years. correlation between and change in visual acuity number during investigated.Age significantly correlated that received (Pearson's r=0.585, P=0.005). Also, it improvement...

10.2147/opth.s135174 article EN cc-by-nc Clinical ophthalmology 2017-06-01

Recent studies have shown the beneficial effect of intravitreal injections Bevacizicumab in several ocular neovasular disorders, however, possible adverse effects this treatment not been fully described. The authors report development a full thickness macular hole (FTMH) 44-year-old patient with cystoid edema secondary to central retinal vein occlusion after injection and describe its course vitrectomy, internal limiting membrane peeling gas tamponade.

10.3928/15428877-20100215-31 article EN Ophthalmic surgery, lasers & imaging retina 2010-03-25

KARAGIANNIS, DIMITRIOS A. MD; SAMPAT, FEBO VENKATADRI FRCS, DO; DOWLER, JONATHAN MD, FRCOphthEditor(s): Jampol, Lee M. Author Information

10.1097/iae.0b013e3180592b8e article EN Retina 2007-09-01
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