نتایج جستجو برای: ectasia

تعداد نتایج: 1934  

2012
Yen-Yu Liu Jui-Peng Tsai Chung-Lieh Hung Jiun-Yi Li Jen-Yuan Kuo

Diffuse coronary arteries ectasia combined with calcification is seldom reported. Acute coronary syndrome, a potentially life-threatening disease, accompanied with coronary ectasia and diffuse calcification, made percutaneous coronary intervention difficult and risky owing to increasing complications rate. Dual-source computed tomography and three-dimensional volume rendering images help cardio...

2014
Mehmet Gurkan Tatar Feride Aylin Kantarci Aydin Yildirim Haşim Uslu Hatice Nur Colak Hasan Goker Bulent Gurler

Purpose. To evaluate the risk factors for post-laser in situ keratomileusis (LASIK) ectasia. Materials and Methods. Medical records of 42 eyes of 28 (10 women, 18 men) patients who developed corneal ectasia after LASIK were retrospectively reviewed. Topographical features and surgical parameters of those patients were evaluated. Results. The mean age of patients was 34.73 ± 6.50 (23-48) years a...

2014
Leopoldo Spadea Francesca Verboschi Stefano Valente Enzo Maria Vingolo

Corneal ectasia is a serious vision-threatening complication of laser in situ keratomileusis (LASIK). It is associated with progressive corneal steepening, an increase in myopia and astigmatism, and decrease in uncorrected visual acuity. Before LASIK presence of risk factors (corneal thickness, refractive error, presence of clinical and subclinical corneal pathologies) should be studied so pati...

2017
Renato Ambrósio, Jr Fernando Faria Correia Bernardo Lopes Marcella Q. Salomão Allan Luz Daniel G. Dawson Ahmed Elsheikh Riccardo Vinciguerra Paolo Vinciguerra Cynthia J. Roberts

BACKGROUND Ectasia development occurs due to a chronic corneal biomechanical decompensation or weakness, resulting in stromal thinning and corneal protrusion. This leads to corneal steepening, increase in astigmatism, and irregularity. In corneal refractive surgery, the detection of mild forms of ectasia pre-operatively is essential to avoid post-operative progressive ectasia, which also depend...

2015
Hasahya Tony Kai Meng Bangwei Wu Qiutang Zeng

Background. Coronary artery ectasia (CAE) occurs in 0.3 to 5.3% of patients undergoing coronary angiography. TIMI frame count (TFC) is an index of coronary flow that correlates with flow velocity. In ectasia patients, there is delayed coronary flow with increased TFC. Methods. We evaluated angiograms of 789 patients for presence of CAE, coronary artery disease (CAD), and Markis type of CAE. We ...

2014
Mohammad Miraftab Akbar Fotouhi Hassan Hashemi Fatemeh Jafari Ashkan Shahnazi Soheila Asgari

PURPOSE To evaluate and modify the Randleman Ectasia Risk Score System for predicting post-laser in situ keratomileusis (LASIK) ectasia in patients with normal preoperative corneal topography. METHODS In this retrospective study we reviewed data from 136 eyes which had undergone LASIK including 34 ectatic and 102 normal eyes between 1999 and 2009. After determining the sensitivity and specifi...

Journal: :Stroke 2015
Guillaume Saliou Raphael H Sacho Sarah Power Alex Kostynskyy Robert A Willinsky Michael Tymianski Karel G terBrugge Sapna Rawal Timo Krings

BACKGROUND AND PURPOSE Basilar trunk aneurysms (BTAs), defined as aneurysms distal to the basilar origin and proximal to the origin of the superior cerebellar artery, are rare and challenging to manage. We describe the natural history and management in a consecutive series of BTAs. METHODS Between 2000 and 2013, 2522 patients with 3238 aneurysms were referred to our institution for aneurysm m...

Journal: :journal of research in health sciences 0
farnaz fariba mehdi moradi arezzo arabi behzad ghaderi

background: according to the angiographic findings, 3%-8% of atherosclerotic coronary artery patients suffer from coronary artery ectasia (cae). we conducted this study to estimate the prevalence of cae among patients who underwent angiography and compared this group with those patients without cae and atherosclerosis in terms of common coronary heart disease (chd) risk factors. methods : this ...

Journal: :medical journal of islamic republic of iran 0
mohammad j. hashemi from the shahid rajai heart hospital and cardiovascular research center, !rail university of medical sciences, tehran. islamic republic of iran. ali andon petrossians

a 22 year old male referred with palpitation. general appearance and physical exam impressed us in that the patient has marfan syndrome. cardiac catheterization showed diffuse arterial ectasia. we found no previous report of this generalized diffuse ectasia.

Journal: :Digital journal of ophthalmology : DJO 2009
Mona Harissi-Dagher Sonja A F Frimmel Samir Melki

Purpose To describe the case of a patient developing corneal ectasia following LASIK for the correction of myopic astigmatism. Materials and Methods A 39-year-old man underwent bilateral uneventful LASIK for myopic astigmatism of -10.25 -1.75 ×040 OD and -8.00 -2.50 ×005 OS. Preoperative corneal pachymetry was 542 micrometers OD and 543 micrometers OS. Preoperative corneal topography showed b...

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