نتایج جستجو برای: آزمایشهای pvt

تعداد نتایج: 3389  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی شاهرود 1387

پس از جمع آوری نمونه ، نمونه جهت مطالعات فرآوری به آزمایشگاه کانه آرایی ارسال و پس از خردایش اولیه، همگن سازی و دانه بندی ،آزمایشهای عیارسنجی و مطالعات میکروسکوپی صورت پذیرفت. مطالعات ویژگی شناختی نشان می دهد که اکسیدها و هیدروکسیدهای آهن و آلتره شدن کانیهای سولفیدی به گوتیت و لپیدوکروسیت مهم ترین فازهای کانی شناسی بود، عیار طلا 2/2 تا 2/6 ppm اندازه گیری شد. جهت استخراج طلا لیچینگ با روش سیان...

ژورنال: :تحقیقات بتن 2008
محمد شکرچی زاده علیرضا میردامادی ابوذر بنکدار مهدی بخشی

متاکائولن یکی از پوزولان های فعال است که در دهه های اخیر مورد استفاده قرار می گیرد. این ماده که از پختن رس کائولن بدست می آید به منظور افزایش مقاومت مکانیکی و پایایی بتن و در مواردی بهبود ویژگی های ظاهری بتن های تزئینی کار برد دارد. در این تحقیق اثرات جایگزینی این پوزولان با سیمان با درصد های پنج، ده و پانزده بر مشخصات بتن تازه (روانی، درصد هوا، زمان گیرش، چگالی)، خواص مکانیکی (مقاومت فشاری، خم...

Journal: :Liver transplantation : official publication of the American Association for the Study of Liver Diseases and the International Liver Transplantation Society 2010
Michael J Englesbe James Kubus Wajee Muhammad Christopher J Sonnenday Theodore Welling Jeffrey D Punch Raymond J Lynch Jorge A Marrero Shawn J Pelletier

The effects of occlusive portal vein thrombosis (PVT) on the survival of patients with cirrhosis are unknown. This was a retrospective cohort study at a single center. The main exposure variable was the presence of occlusive PVT. The primary outcome measure was time-dependent mortality. A total of 3295 patients were analyzed, and 148 (4.5%) had PVT. Variables independently predictive of mortali...

2015
Xingshun Qi Junna Dai Man Yang Weirong Ren Jia Jia Xiaozhong Guo

A systematic review of the literature was performed to analyze the association between portal vein thrombosis (PVT) and survival in non-liver-transplant patients with liver cirrhosis. PubMed, EMBASE, and Cochrane Library databases were searched for all relevant papers which evaluated the prognostic value of PVT in predicting the survival of liver cirrhosis. Meta-analyses were not conducted beca...

Journal: :Thrombosis and haemostasis 2006
Lucio Amitrano Maria Anna Guardascione Paul R J Ames Maurizio Margaglione Luigi Iannaccone Vincenzo Brancaccio Antonio Balzano

It was the aim of the present study to investigate factor II levels in liver cirrhosis (LC) patients with portal vein thrombosis (PVT) carrying the heterozygous G20210A prothrombin (PT) mutation. Plasma concentrations of factor II, VII, X, V, protein C (PC) total protein S (tPS) antithrombin (AT) and D-dimers (DD) were measured in 13 LC patients with PVT heterozygous for PT G20210A, in 13 LC pa...

2015
Murat Biteker Ibrahim Altun Ozcan Basaran Volkan Dogan Birdal Yildirim Gokhan Ergun

Prosthetic heart valve thrombosis (PVT) is a rare but serious complication with high morbidity and mortality. The optimal treatment of the PVT is controversial and depends on thrombus location and size, the patient's functional class, the risk of surgery or thrombolysis, and the clinician's experience. Although surgical therapy has been the traditional therapeutic approach, studies with low-dos...

Journal: :Gut 2011
Elba Llop Carmen de Juan Susana Seijo Angeles García-Criado Juan G Abraldes Jaume Bosch Juan Carlos García-Pagán

BACKGROUND/AIM Portal cholangiopathy (PC) is identified in over 80% of patients with portal vein thrombosis (PVT), but the true impact of this condition is not well known. This study investigated the relationship between cholangiographic abnormalities and clinical symptoms and their evolution over time. PATIENTS/METHODS 67 consecutive patients with non-tumoral non-cirrhotic PVT following a st...

2013
Işık Üstüner Remzi Adnan Akdoğan Emine Seda Güvendağ Güven Figen Kır Şahin Şenol Şentürk Elif Akdoğan Filiz Taşçı

Portal vein thrombosis (PVT) can be chronic or acute in nature; it is characterized by a thrombus formation in the main portal vein and/or its right or left branches. Herein, we present a 36-year-old woman with asymptomatic noncirrhotic chronic PVT who developed preeclampsia in the later stage of pregnancy. This report will emphasize the clinical differential diagnosis, outcome, and management ...

2014
Salma Batool-Anwar Stefanos N Kales Sanjay R Patel Vasileia Varvarigou Pamela N DeYoung Atul Malhotra

BACKGROUND Obstructive sleep apnea (OSA) is a highly prevalent disorder with considerable morbidity and mortality. Vigilance and attentiveness are often impaired in OSA patients. In occupational medicine settings, subjective reports of sleepiness are notoriously inaccurate, making the identification of objective measures of vigilance potentially important for risk assessments of fitness for dut...

2017
Shunichiro Fujiyama Satoshi Saitoh Yusuke Kawamura Hitomi Sezaki Tetsuya Hosaka Norio Akuta Masahiro Kobayashi Yoshiyuki Suzuki Fumitaka Suzuki Yasuji Arase Kenji Ikeda Hiromitsu Kumada

BACKGROUND Portal vein thrombosis (PVT) is a serious complication in liver cirrhosis with portal hypertension. We examined the treatment, recurrence and prognosis of PVT in cirrhotic patients. METHODS The study subjects were all 90 cirrhotic patients with PVT treated with danaparoid sodium (DS) at our department between July 2007 and September 2016. The mean age was 68 years and mean Child-Pu...

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