Search Results
Results 401 - 450 of 1077
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McCabe C M - - 2000
OBJECTIVE: To report visual acuity outcomes of nonsurgical management of macular hemorrhage secondary to retinal artery macroaneurysms. METHODS: Forty-one patients at multiple centers with macular hemorrhage secondary to retinal artery macroaneurysms managed with observation alone were reviewed. Time to clearance of macular hemorrhage, visual acuity at final follow-up, and presence ...
Larsson J - - 2000
PURPOSE: To report an association between central retinal artery occlusion and homozygosity for factor V Leiden. METHOD: Case report. RESULTS: A 48-year-old woman with sudden loss of visual acuity in her right eye caused by a central retinal artery occlusion showed abnormal resistance to activated protein C and was homozygous ...
Munroe G - - 2000
Over 80 per cent of 169 neonatal thoroughbred foals had some part of the hyaloid artery present bilaterally and its degree of completeness, colour and character was statistically symmetrical. The complete artery was present in over 60 per cent of the foals. The incidence of the hyaloid artery and its ...
Okamoto N - - 2000
BACKGROUND: Formation of collateral pathways by veins on the optic nerve head is sometimes observed during the resolution of a central retinal vein occlusion (CRVO). However, no cases have been reported in which the formation and involution of these collateral pathways were documented during the resolution of a CRVO. CASE: ...
Fine L C - - 2000
PURPOSE: To describe a case of spontaneous central retinal artery occlusion in a young man with hemoglobin sickle cell disease. METHOD: Case report. RESULTS: A 31-year-old African-American man with a history of hemoglobin sickle cell disease developed sudden painless loss of vision in the right eye. Medical history was remarkable ...
Fujita H - - 2000
BACKGROUND: Little is known about retinal vascular lesions underlying hemorrhage in the acute phase of branch retinal vein occlusion (BRVO). CASE: A 64-year-old woman presented with a decrease in visual acuity of ten-day duration in her left eye. OBSERVATIONS: At the initial examination, her left fundus showed the typical appearance ...
Wen F - - 2000
PURPOSE: To report a case of branch retinal artery occlusion after thyroid artery interventional embolization. METHODS: A 33-year-old man with hyperthyroidism complained of visual loss and scotoma in the left eye after thyroid artery interventional embolization. He underwent a full ophthalmologic examination, including fluorescein angiography. RESULTS: Visual acuity was 20/25, ...
Kassab G S - - 2000
To document the remodeling of the asymmetric branching pattern of the coronary right ventricular branches (RVBs) in right ventricular hypertrophy (RVH), we computed an asymmetry ratio, S, for the diameters and lengths of all vessels, defined as the ratio of the daughter diameters and lengths, respectively. We have previously induced ...
Arnarsson A - - 2000
PURPOSE: To test a hypothesis on the physiological mechanism of the disappearance of macular edema after laser treatment. The hypothesis is based on the effect grid laser treatment has on retinal oxygenation and hemodynamics. It predicts that laser-induced reduction of macular edema is associated with shortening and narrowing of retinal ...
Ohno-Matsui K - - 2000
BACKGROUND: Acquired retinal macroaneurysms are round dilatations of retinal arterioles that occur in the posterior fundus. They tend to rupture before they grow large and cause a visual decrease. The average diameter of macroaneurysms in the previous reports is 281 micrometer. METHODS: A 63-year-old man complained of a sudden decrease ...
Vécsei P V - - 2000
INTRODUCTION: Central retinal vein occlusion (CRVO) is a common vascular disorder and may lead to blindness. The aim of the study was to obtain information about the possible imbalance and recovery of orbital arterial blood flow in non-ischemic CRVO. METHODS: Vascular resistance (pulsatility index-PI) in the orbital arteries of 14 ...
Lafaut B A - - 2000
PURPOSE: To report the histopathologic features of surgically removed submacular tissue from an elderly patient with a pattern of polypoidal choroidal vasculopathy on indocyanine green angiography. METHODS: Clinical examination including fluorescein and indocyanine green angiography and light microscopy of surgical specimen. RESULTS: A thick yellow proteinaceous subretinal fluid was seen ...
Townsend-Pico W A - - 2000
PURPOSE: To report the use of indocyanine green angiography in the diagnosis of retinal arterial macroaneurysms associated with preretinal and subretinal hemorrhage. METHODS: Retrospective case series. Indocyanine green angiograms of five consecutive patients with dense preretinal, intraretinal, and subretinal hemorrhages in which the cause of hemorrhage was still in question ...
Mokhtari F - - 2000
PURPOSE: To report two cases of head or neck pain and central retinal artery occlusion associated with spontaneous dissection of the ipsilateral internal carotid artery. METHODS: Case reports. RESULTS: We describe two cases of sudden visual loss caused by central retinal artery occlusion. Both cases were preceded by ipsilateral headaches ...
Ko M K - - 2000
PURPOSE: To report previously unrecorded ocular neovascularization associated with acute ophthalmic artery obstruction (AOAO) that presents clinical manifestations of acute concomitant obstruction of the retinal and posterior ciliary circulations. METHODS: This report documents the clinical, fluorescein angiographic, and histopathologic findings in two patients with AOAO followed by posterior segment neovascularization. ...
Kochi K - - 2000
We hypothesized that the central retinal artery color Doppler (CRAD) technique can be used as an alternative monitoring method to the conventional transcranial Doppler (TCD) technique which does not consistently provide good signals during cardiopulmonary bypass. This is the first study to compare CRAD with TCD during cardiac surgery. Twenty ...
Kwiatkowska M - - 2000
The aim of study was the examination of the median branches (MB) of the basilar artery (BA). 783 MB were found in 100 human brainstems injected with coloured latex. The attachment of the MB to the quadrants of the BA's trunk, their structural shape, length of trunks, topographical arrangement (on ...
Schwoerer J - - 2000
PURPOSE: To describe the characteristic findings of fundus flavimaculatus (Stargardt disease) as seen on indocyanine green angiography. METHODS: Twelve eyes of 6 consecutive patients with fundus flavimaculatus were studied by fundus color photographs, fluorescein angiography and indocyanine green angiography. RESULTS: Indocyanine green angiography allowed visualization of small, clearly demarcated areas ...
Sall K - - 2000
A randomized, multicenter, double-masked, prospective, parallel study was designed to establish the intraocular pressure (IOP)-lowering efficacy, safety, and tolerability of brinzolamide 1.0% (Azopt) as a primary therapy compared with dorzolamide 2.0% (Trusopt) and placebo in patients diagnosed with open-angle glaucoma (with or without a pseudoexfoliative or a pigmentary dispersion component) ...
Kim I T - - 2000
Amniotic fluid embolism is a serious complication of pregnancy with a high mortality. We present a 28-year-old healthy woman who underwent dilatation and curettage for an elective abortion, followed by the sudden loss of vision in her left eye. Occlusion of one branch retinal arteriole was the initial finding of ...
Augsburger H - - 2000
The vascular system of the female canine urethra was investigated by means of serial histological sections, vascular corrosion casts and scanning electron microscopy. The urethral vascular plexus, located in the proprial connective tissue between the epithelium and the smooth musculature, consisted of sinusoids. It could be divided distally into two ...
Schmidt D - - 1999
BACKGROUND: For assessing the prognosis of a branch retinal artery occlusion (BRAO), examination of the arterial blood flow by fluorescein angiography is necessary. PATIENTS AND METHODS: In seven patients (mean age: 68.1, youngest 61, oldest 76 years old), with BRAO of varying involvement and extent, the disturbed retinal blood flow ...
Kim I T - - 1999
A healthy 65-year-old man with sudden profound visual loss in his right eye presented with clinical signs of central retinal venous occlusion and retinal whitening, indicative of a cilioretinal arterial obstruction. He had been diagnosed with cilioretinal artery occlusion at a private ophthalmology clinic three days before being referred to ...
Osborne N N - - 1999
Carotid artery occlusion (two vessel occlusion; 2-VO) for 3 or 9 months causes a suppression of the electroretinogram. However, after 3 months the retinal morphology appears unaffected judging from the localisation of GABA, ChAT, alpha PKC, Thy-1 and GFAP immunoreactivities. Moreover, no difference in NMDA-R1, opsin or Thy-1 mRNA levels ...
Loewenstein A - - 1999
PURPOSE: To report on a patient with cilioretinal artery occlusion during cardiac catheterization. METHODS: A 51-year-old man complained of blurred vision in the left eye immediately following cardiac catheterization. Visual acuity was 6/12 and the eye had a dense central scotoma. RESULTS: Mild retinal whitening of the posterior pole and ...
Messner L V - - 1999
BACKGROUND: Combined cilioretinal artery and retinal vein occlusions are infrequently documented retinal vascular disorders of speculative origin. Occlusion of the cilioretinal artery is believed to result from either mechanical compression of the artery as a result of an increase in venous pressure or from a reduction in perfusion pressure in ...
Ogata J - - 1999
The role of changes in the vessels in vascular dementia (VaD) was reviewed through histopathology. Because Binswanger's subcortical arteriosclerotic encephalopathy is a common type of VaD, and it forms a homogenous group among the subtypes of VaD, arteriopathy in the subcortical structure was the main focus. Fibrohyalinosis and fibrinoid necrosis ...
Jacobson D M - - 1999
OBJECTIVE: To characterize the clinical features and course of patients with magnetic resonance imaging (MRI)-defined optic nerve compression by the supraclinoid carotid artery. DESIGN: Retrospective, observational case series. PARTICIPANTS: Eighteen patients with 24 affected eyes were identified by reviewing case records from the author's referral-based neuro-ophthalmology practice. Predetermined inclusion and ...
Teramoto S - - 1999
BACKGROUND: Peripapillary loops of venous origin are extremely rare. CASE: A 55-year-old woman was referred to us for further examination of peripapillary vascular abnormalities. OBSERVATIONS: Fundus examination and fluorescein angiography clearly showed a venous and an arterial peripapillary loop in both her right and left fundi. The venous loop in ...
Ding P C - - 1999
Peripapillary arterial loops are uncommon congenital retinal arterial anomalies, which are characterized by retinal arterial loops that originate and terminate on the retina beyond the optic disc borders. We report a case of peripapillary arterial loop associated with preretinal and vitreous hemorrhage. The fluorescein angiography demonstrates the arterial loop and ...
Incorvaia C - - 1999
PURPOSE: To report the occurrence of monolateral central retinal vein occlusion in a patient with heterozygous 20210 G/A prothrombin genotype, known to be associated with high thrombophilic risk. METHODS: A monolateral central retinal vein occlusion was diagnosed in a 71-year-old woman, who had suffered from a deep vein thrombosis in ...
Piltz-Seymour J R - - 1999
PURPOSE: To photographically document venous collateral development, remodeling, and regression in a patient with traumatic glaucoma. METHODS: Consecutive fundus photographs were evaluated, labeled, and correlated with the clinical history of a patient with unilateral posttraumatic glaucoma. RESULTS: This report photographically documents the appearance, remodeling, and subsequent disappearance of collateral vessels ...
Szczurkowski A - - 1999
Using the thiocholine method of Koelle and Friedenwald and histological techniques the otic ganglion of the spotted suslik (Spermophilus suslicus, Güldenstaedt 1770) from the province of Zamość was studied. The ganglion was found to be a single oval cluster of neurocytes, situated at the medial and posterior surface of the ...
Tanaka A - - 1999
The intramural coronary artery (IMCA) with a diameter of 50-500 micrometers is critical for blood supply to the inner layers of heart muscle. We introduced digital measurement to microangiography using monochromatic synchrotron radiation and quantified branching patterns of the IMCA, the epicardial coronary artery (EPCA), and the distal ileal artery ...
Kim I T - - 1999
Internal carotid artery or ophthalmic artery occlusions are devastating ophthalmological events which lead to severe impairment of vision. A case of multiple branch retinal artery occlusions in a 63-year-old male with internal carotid artery and ophthalmic artery occlusions on brain angiography is presented. Emboli lodging in branches of the retinal ...
Sagripanti A - - 1999
BACKGROUND: Thromboembolism is considered a crucial event in the pathogenesis of retinal occlusion, resulting in a severe damage of central or peripheral visual function. METHODS: We evaluated hemostatic system parameters in the plasma of 14 patients (11 males and 3 females aged 59-73 years) affected by acute retinal ischemia (central ...
Soga K - - 1999
Cerebral air embolism can cause cerebral complications after open heart surgery. The duration of cerebral artery occlusion by air embolism is thought to vary depending on the conditions. However, no study has evaluated factors affecting the duration of occlusion. In this study, we examined the effects of blood pressure and ...
Ascaso F J - - 1999
Occlusion of the retinal artery is a rare complication after therapeutic embolization. We present a case of a partial retinal artery obstruction following coil embolization of an intracerebral aneurysm. To our knowledge, only six cases of acute occlusion of the choroidal and/or retinal arteries after therapeutic embolization have been reported ...
Verma L - - 1999
Combined occlusion of the central retinal artery and central retinal vein is an infrequently encountered clinical entity. Although there are reports in the literature of a combined occlusion of the central retinal artery and vein, its occurrence following pars plana vitrectomy has not been described. We report the case of ...
Padolecchia R - - 1999
Intraarterial fibrinolysis was performed in three patients with acute central retinal artery occlusion using recombinant tissue plasminogen activator as a fibrinolytic agent. In two cases the ophthalmic artery was selectively catheterized, and in the other a thrombolytic drug was infused into the ophthalmic artery by way of the meningeal collaterals. ...
Shinjo S K - - 1999
The distribution and composition of glycosaminoglycans (GAGs) are reported in the anterior interventricular branch under the intermyocardial bridge (MB) and the ventricular branch without bridge, both from the left human coronary artery. Chondroitin sulfate (CS), dermatan sulfate (DS) and heparan sulfate (HS) were purified and quantified by a combination of ...
Verbruggen A M - - 1999
A 2-year-old Basset hound with unilateral persistent hyperplastic tunica vasculosa lentis and primary vitreous is described. There was leukokoria in the left eye, caused by bluish-white polar densities and haemorrhagic discoloration in the nucleus of the lens. Ultrasonographic examination of the eye revealed a small hyperechoic lens and a hyperechoic ...
Khairallah M - - 1999
To report an unusual association of a retinal venous macroaneurysm with premacular hemorrhage in a 50-year-old man, using a case report method. The patient exhibited a dense premacular hemorrhage in the left eye. Fluorescein angiography demonstrated that the source of bleeding was an isolated retinal venous macroaneurysm. The anterior surface ...
Hildebrandt H - - 1999
We compared visual target detection and search performance of patient groups with infarctions of (1) the right middle brain artery (R-MBA) and with neglect; (2) the left posterior artery (L-PBA), (3) the right posterior artery (R-PBA), the latter two groups had contralesional hemianopias, or (4) with right hemisphere lesions without ...
Ninomiya H. - - 1999
The vasculature of the orbital rete (rete mirabile ophthalmicum) in Japanese deer (Cervus nippon) was studied using corrosion casting, scanning electron microscopy, and histology. The orbital rete is a flat, triangular- or leaf-shaped arterial network, which consists of a complex of small arterioles, that intermixes with a similar complex of ...
Govsa F - - 1999
In this paper, we present the results of our investigations on the neuro-arterial relations in the region of the optic canal. A thorough knowledge of the microanatomic features of the ophthalmic artery, optic canal and optic nerve is very important for surgeons approaching lesions of this area. We aimed to ...
Fróes L B - - 1999
The contribution of the sternocleidomastoid branch of the occipital artery, superior arterial pedicle (SAP), to the irrigation of the sternocleidomastoid muscle (SCM) was evaluated in fresh human cadavers by injecting Neoprene-latex for minute dissection. From its insertion in the mastoid process of the temporal bone, the SCM was divided into ...
Gelatt-Nicholson K.J. - - 1999
The objective of this study was to compare orbital and ocular vasculature velocity, measured by Doppler imaging, in normal Beagles and Beagles with inherited primary open-angle glaucoma. Eight normal Beagles and 13 Beagles with different stages of primary open-angle glaucoma were evaluated twice with a 2-4-week period between measurements. Doppler ...
Osawa T - - 1998
Three cases of bifid ribs were found in two cadavers during routine dissections at the Iwate Medical University School of Dentistry. All of the cases were found in the third or the fourth rib. The distal parts of the osseous rib bifurcated with an angle of 60 degrees and both ...
Hardy T G - - 1998
A patient with a retinal arteriovenous malformation (AVM) had experienced episodic visual loss with spontaneous recovery for many years, followed by permanent visual loss secondary to central retinal vein occlusion. She subsequently progressed to development of retinal neovascularization extending onto the posterior vitreous face with recurrent vitreous hemorrhage requiring vitrectomy. ...
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