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https://www.readbyqxmd.com/read/28929290/management-of-blood-pressure-in-patients-with-glaucoma
#1
REVIEW
Russell M Levine, Alina Yang, Venkatesh Brahma, James F Martone
PURPOSE OF REVIEW: Ocular perfusion pressure (OPP) is defined as the difference between BP and intraocular pressure (IOP). With low BP comes low OPP and resultant ischemic damage to the optic nerve, leading to glaucoma progression. The purpose of this article is to review the literature on BP as it relates to glaucoma and to create a forum of discussion between ophthalmologists and internal medicine specialists. RECENT FINDINGS: Both high and low BP has been linked glaucoma...
September 19, 2017: Current Cardiology Reports
https://www.readbyqxmd.com/read/28875349/variations-in-optic-nerve-head-morphology-by-intraocular-pressure-in-open-angle-glaucoma
#2
Aaron Wong, Kaliopy Matheos, Zak Prime, Helen V Danesh-Meyer
PURPOSE: To compare optic disc topography in eyes in three intraocular pressure (IOP) groups of <15 mmHg, 15-20 mmHg, and ≥21 mmHg using spectral domain optical coherence tomography (SD-OCT) and confocal scanning laser ophthalmoscopy, adjusting for the degree of damage, as measured by retinal nerve fiber layer (RNFL) thickness and average visual field loss. METHODS: A total of 184 eyes of 112 patients with primary open-angle glaucoma were recruited into groups based on baseline untreated intraocular pressure (IOP) of <15 mmHg (normal-tension glaucoma [NTG], very low), 15-20 mmHg (NTG, medium), or ≥21 mmHg (high-tension glaucoma [HTG])...
September 5, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28834385/long-term-results-of-deep-sclerectomy-in-normal-tension-glaucoma
#3
Mika Harju, Sakari Suominen, Pasi Allinen, Eija Vesti
PURPOSE: To study the long-term outcome of deep sclerectomy with and without mitomycin-C (MMC) in patients with normal-tension glaucoma (NTG). METHODS: We prospectively analysed consecutive patients randomized to surgery performed either with (MMC group) or without (non-MMC) MMC. Surgery was considered totally successful if, after surgery, the preoperative intra-ocular pressure (IOP) level was reduced by 25% without medication, and a qualified success if medication was required to achieve the same limits...
August 21, 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/28774517/normal-tension-glaucoma-management-a-survey-of-contemporary-practice
#4
Richard J Symes, Frederick S Mikelberg
OBJECTIVE: The aim of this study was to investigate contemporary practice patterns with respect to normal tension glaucoma (NTG) management and to determine whether the 2 largest NTG trials have influenced ophthalmologists' clinical practice. METHODS: A survey questionnaire was sent to ophthalmologists via the American Glaucoma Society, the Canadian Glaucoma Society, and the Canadian Ophthalmological Society. The questionnaire was designed to investigate ophthalmologists' usual practice with respect to NTG and the extent to which practice has been influenced by the Collaborative Normal Tension Glaucoma Study (CNTGS) and the Low pressure Glaucoma Treatment Study (LoGTS)...
August 2017: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
https://www.readbyqxmd.com/read/28725291/relationship-between-normal-tension-glaucoma-and-flammer-syndrome
#5
Katarzyna Konieczka, Hyuk Jin Choi, Simone Koch, Franz Fankhauser, Andreas Schoetzau, Dong Myung Kim
BACKGROUND: Besides intraocular pressure, vascular factors play a role in the pathogenesis of glaucomatous optic neuropathy. One of these potential vascular factors is Flammer syndrome. The purpose of the present study was to determine in a Korean population whether signs and symptoms of Flammer syndrome occur more often in normal tension glaucoma patients than in control subjects. METHODS: Two hundred forty-six normal tension glaucoma patients and 1116 control subjects responded to a multiple-choice questionnaire asking about 15 signs and symptoms of Flammer syndrome...
June 2017: EPMA Journal
https://www.readbyqxmd.com/read/28725290/the-discovery-of-the-flammer-syndrome-a-historical-and-personal-perspective
#6
REVIEW
Josef Flammer, Katarzyna Konieczka
This review describes the clinical and basic research that led to the description of Flammer syndrome. It is narrated from a personal perspective. This research was initiated by the observation of an increased long-term fluctuation of visual fields in a subgroup of glaucoma patients. As these patients had strikingly cold hands, peripheral blood flow was tested with a capillary microscopy, and vasospastic syndrome (VS) was diagnosed. Further studies on these patients revealed frequently weakened autoregulation of ocular blood flow and increased flow resistivity in retroocular vessels...
June 2017: EPMA Journal
https://www.readbyqxmd.com/read/28724826/bilateral-normal-tension-glaucoma-can-this-be-nutritional
#7
Sirisha Senthil, Kiranmaye Turaga
Normal tension glaucoma (NTG) also known as low tension glaucoma, presents with optic nerve head and visual field damage in the absence of high intraocular pressure (<21 mmHg). There are several patients of NTG seen in our clinics who have repeatable visual field defects, which may or may not correlate with the disc appearance, but are labeled as glaucoma. Ruling out ischemic, nutritional, and other causes of one-time damage are important before diagnosing an NTG. We report 3 such cases that were misdiagnosed and referred as NTG...
July 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28571810/predictive-role-of-neutrophil-to-lymphocyte-ratio-and-platelet-to-lymphocyte-ratio-in-normal-tension-glaucoma
#8
Kursat Atalay, Havva Kaldirim Erdogan, Ahmet Kirgiz, Senay Asik Nacaroglu
As a type of primary open-angle glaucoma, normal-tension glaucoma (NTG) is a health problem that manifests itself with low intraocular pressure (IOP) levels and preserves its importance for public health care. In population-based screenings, which take the IOP levels of 21mmHg as a cut-off for the diagnosis of glaucoma, the diagnosis is usually delayed, and the treatment is started in an advanced stage by the referred ophthalmologists. NTG is associated with some autoimmune conditions and systemic diseases, such as paraproteinemia, nocturnal hypotension, and migraine...
June 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28315568/diurnal-blood-pressure-parameters-in-normal-tension-glaucoma-primary-open-angle-glaucoma-and-healthy-subjects
#9
Tolga Kocatürk, Çağdaş Akgüllü, Gökhan E Evliçoğlu, İmran K Ömürlü, Harun Çakmak, Ufuk Eryılmaz, Volkan Dayanır
OBJECTIVE: The pathophysiology of glaucoma is still undisclosed. Cardiovascular hemodynamic changes are hypothesized to contribute to glaucoma. This study aimed to determine the differences in the diurnal blood pressure (BP) of patients with normal tension glaucoma (NTG), primary open angle glaucoma (POAG), and controls without glaucoma. METHODS: A total of 129 patients were included in this study. The day-night average systolic and diastolic BPs, the day-night average pulse pressures (PPs), the day-night average heart rates, and the percentage of BP decline at night were obtained from the Holter devices and compared...
July 2017: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/28285308/clinical-features-of-japanese-patients-with-central-retinal-vein-occlusion-complicated-by-normal-tension-glaucoma-a-retrospective-study
#10
Teruyo Kida, Masanori Fukumoto, Takaki Sato, Hidehiro Oku, Tsunehiko Ikeda
PURPOSE: The association of central retinal vein occlusion (CRVO) with primary open-angle glaucoma (POAG) or ocular hypertension has been reported, and lowering intraocular pressure (IOP) helps to improve the retinal circulation in eyes with CRVO. However, the clinical features of CRVOs with normal-tension glaucoma (NTG) are not well known. Therefore, we investigated Japanese CRVO patients with NTG. METHODS: We retrospectively investigated 234 CRVO patients over 5 years, with follow-ups of more than 12 months, and evaluated the prevalence of glaucoma...
2017: Ophthalmologica. Journal International D'ophtalmologie
https://www.readbyqxmd.com/read/28139518/corneal-biomechanical-parameters-and-asymmetric-visual-field-damage-in-patients-with-untreated-normal-tension-glaucoma
#11
Bai-Bing Li, Yu Cai, Ying-Zi Pan, Mei Li, Rong-Hua Qiao, Yuan Fang, Tian Tian
BACKGROUND: High intraocular pressure (IOP) and low central corneal thickness (CCT) are important validated risk factors for glaucoma, and some studies also have suggested that eyes with more deformable corneas may be in higher risk of the development and worsening of glaucoma. In the present study, we aimed to evaluate the association between corneal biomechanical parameters and asymmetric visual field (VF) damage using a Corvis-ST device in patients with untreated normal tension glaucoma (NTG)...
February 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28079658/normal-tension-glaucoma-and-low-cerebrospinal-fluid-pressure
#12
Imran H Yusuf, Gokularaj Ratnarajan, Richard S Kerr, John F Salmon
No abstract text is available yet for this article.
March 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28002190/a-comment-on-juvenile-onset-normal-tension-glaucoma-from-chronic-recurrent-low-cerebrospinal-fluid-pressure-j-glaucoma-2016-25-e738-e740
#13
Pasquale Gallina, Alfonso Savastano, Eleonora Becattini, Simone Orlandini, Stanislao Rizzo, Berardino Porfirio
No abstract text is available yet for this article.
March 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/27984835/-phenomenology-and-clinical-relevance-of-the-flammer-syndrome
#14
REVIEW
K Konieczka, J Flammer
The Flammer syndrome (FS) describes the phenotype of people with a predisposition for an altered reaction of the blood vessels to stimuli like coldness, emotional stress or high altitude. Frequent symptoms are: cold hands and/or feet, low blood pressure, prolonged sleep onset time, reduced feeling of thirst, increased sensitivity to odour, pain, vibration and certain drugs. SF subjects are often ambitious and successful but also perfectionistic and sometimes brooding. Frequent signs are: altered gene expression, prolonged blood flow cessation in nailfold capillaroscopy after cold provocation, reduced autoregulation of ocular blood flow, and reduced vasodilation after stimulation with flickering light...
December 2016: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/27965889/elevated-plasma-endothelin-1-levels-in-normal-tension-glaucoma-and-primary-open-angle-glaucoma-a-meta-analysis
#15
REVIEW
Shengjie Li, Aiping Zhang, Wenjun Cao, Xinghuai Sun
Purpose. The aim of this meta-analysis was to clarify the association between the plasma endothelin-1 level and the risks of normal tension glaucoma (NTG) and primary open-angle glaucoma (POAG). Methods. Relevant publications were collected from three databases including PubMed, EMBASE, and the Web of Science through December 31, 2015. In this study, the terms "(endothelin OR ET) AND glaucoma" were searched. Review Manager 5.2 was used to process the data. Results. Seven studies (212 cases, 164 controls) were included for the NTG analysis...
2016: Journal of Ophthalmology
https://www.readbyqxmd.com/read/27777505/plasma-endothelin-1-and-single-nucleotide-polymorphisms-of-endothelin-1-and-endothelin-type-a-receptor-genes-as-risk-factors-for-normal-tension-glaucoma
#16
Ewa Kosior-Jarecka, Dominika Wróbel-Dudzińska, Urszula Łukasik, Tin Aung, Chiea Chuen Khor, Janusz Kocki, Tomasz Żarnowski
PURPOSE: The purpose of this study was to determine whether four single nucleotide polymorphisms (SNPs) of endothelin and endothelin receptor type A genes can constitute a risk factor for normal tension glaucoma (NTG) and high tension glaucoma (HTG). METHODS: The study included 160 patients with NTG, 124 patients with HTG, and 165 healthy controls. To analyze the frequency of polymorphic variants of the endothelin EDN gene (K198N) and the endothelin receptor type A gene EDN RA (C1222T, C70G, G231A), DNA was isolated from peripheral blood, and SNP genotyping was performed using the real-time PCR (RT-PCR) method...
2016: Molecular Vision
https://www.readbyqxmd.com/read/27669894/caloric-restriction-promotes-cell-survival-in-a-mouse-model-of-normal-tension-glaucoma
#17
Xiaoli Guo, Atsuko Kimura, Yuriko Azuchi, Goichi Akiyama, Takahiko Noro, Chikako Harada, Kazuhiko Namekata, Takayuki Harada
Glaucoma is characterized by progressive degeneration of retinal ganglion cells (RGCs) and their axons. We previously reported that loss of glutamate transporters (EAAC1 or GLAST) in mice leads to RGC degeneration that is similar to normal tension glaucoma and these animal models are useful in examining potential therapeutic strategies. Caloric restriction has been reported to increase longevity and has potential benefits in injury and disease. Here we investigated the effects of every-other-day fasting (EODF), a form of caloric restriction, on glaucomatous pathology in EAAC1(-/-) mice...
September 27, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27533638/evaluation-of-the-il1-gene-cluster-single-nucleotide-polymorphisms-in-primary-open-angle-glaucoma-pathogenesis
#18
Suddhasil Mookherjee, Deblina Banerjee, Subhadip Chakraborty, Indranil Mukhopadhyay, Abhijit Sen, Kunal Ray
AIMS: Dysregulation of the immune system has previously been implicated in glaucoma pathogenesis. In this study, we investigated the potential association of SNPs in the IL1 gene cluster, consisting of nine genes, with primary open-angle glaucoma (POAG) cases. These cases presented with low to normal intraocular pressures (<20 mmHg), and are referred to as non-high tension glaucoma (non-HTG) cases. MATERIALS AND METHODS: In this biphasic study, the discovery phase was conducted with 198 non-HTG cases and 112 controls from eastern India...
October 2016: Genetic Testing and Molecular Biomarkers
https://www.readbyqxmd.com/read/27500103/comparison-of-corneal-biomechanical-properties-in-normal-tension-glaucoma-patients-with-different-visual-field-progression-speed
#19
Ying Hong, Nobuyuki Shoji, Tetsuya Morita, Kazunori Hirasawa, Kazuhiro Matsumura, Masayuki Kasahara, Kimiya Shimizu
AIM: To compare the corneal biomechanical properties difference by ocular response analyzer (ORA) in normal tension glaucoma (NTG) patients with different visual field (VF) progression speed. METHODS: NTG patients with well-controlled Goldmann applanation tonometer (GAT) who routinely consulted Kitasato University Hospital Glaucoma Department between January 2010 and February 2014 were enrolled. GAT and ORA parameters including corneal compensated intraocular pressure (IOPcc), Goldmann estimated intraocular pressure (IOPg), corneal hysteresis (CH), corneal resistance factor (CRF) were recorded...
2016: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/27413503/update-on-normal-tension-glaucoma
#20
REVIEW
Jyotiranjan Mallick, Lily Devi, Pradeep K Malik, Jogamaya Mallick
Normal tension glaucoma (NTG) is labelled when typical glaucomatous disc changes, visual field defects and open anterior chamber angles are associated with intraocular pressure (IOP) constantly below 21 mmHg. Chronic low vascular perfusion, Raynaud's phenomenon, migraine, nocturnal systemic hypotension and over-treated systemic hypertension are the main causes of normal tension glaucoma. Goldmann applanation tonometry, gonioscopy, slit lamp biomicroscopy, optical coherence tomography and visual field analysis are the main tools of investigation for the diagnosis of NTG...
April 2016: Journal of Ophthalmic & Vision Research
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