keyword
MENU ▼
Read by QxMD icon Read
search

Lump

keyword
https://www.readbyqxmd.com/read/28319522/a-numerical-simulation-comparing-a-cavopulmonary-assist-device-and-va-ecmo-for-failing-fontan-support
#1
Po-Lin Hsu, Dongfang Wang, Cherry Ballard-Croft, Dawei Xiao, Joseph B Zwischenberger
A cavopulmonary assist device (CPAD) has been developed for failing Fontan support. This CPAD pumps blood from superior/inferior vena cavae to pulmonary artery. In this study, we compared failing Fontan support with CPAD versus VA ECMO in silico. A numerical lumped-parameter circulatory system model was used to simulate Fontan circulation. Failing Fontan was simulated by increased pulmonary resistance. Central venous pressure (CVP), mean pulmonary arterial pressure (mPAP), left atrial pressure (LAP), and univentricular outflow (CO) were simulated and compared to published clinical data...
March 17, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28318565/the-counterintuitive-role-of-extra-column-volume-in-the-determination-of-column-efficiency-and-scaling-of-chromatographic-processes
#2
A Schultze-Jena, M A Boon, P J Th Bussmann, A E M Janssen, A van der Padt
In industrial liquid separation processes chromatography often has a key function in the optimization of yield and purity. For the design of an industrial system, chromatographic processes are generally simulated using mathematical models, tested and optimized at laboratory level, and then scaled up to pilot and subsequently industrial scale. To describe the system, experimental data and model data need to be fitted and extra column contribution must be determined. This paper describes the influence of extra-column volume on overall separation efficiency for lab scale and its impact on the design of large scale systems...
March 1, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28299278/a-rare-case-of-parotid-gland-lipoma-arising-from-the-deep-lobe-of-the-parotid-gland
#3
Francesco Paparo, Mauro Massarelli, Giorgio Giuliani
Lipomas are the most commonly encountered benign mesenchymal tumors, but their occurrence in the head and neck is rare, even more at the level of the parotid region where they can be found nearby the parotid capsule, inside the capsule, or within the gland. In addition, lipomas involving the deep parotid lobe are extremely unusual. That is why lipomas are not often considered for differential diagnosis of parotid lumps. Concerning diagnostic tools, magnetic resonance imaging (MRI) is nowadays considered as the main imaging examination for parotid lipomas due to a characteristic signal intensity on T1- and T2-weighted images...
July 2016: Annals of Maxillofacial Surgery
https://www.readbyqxmd.com/read/28298802/infantile-cystic-hygroma-an-unusual-perioperative-course
#4
Suman Saini, Madhu Dayal, Amita Gupta
Airway management of an infant with a giant cervical lump may be a difficult task. The anesthesiologist must be prepared to face associated challenges during securing the airway in such patients. We report our experience with One year old infant who presented with huge cystic hygroma in the cervical region leading to recurrent episodes of respiratory tract infection and distress. Surgical removal was needed as sclerotherapy proved ineffective in reducing its size. Proseal laryngeal mask airway was used as a conduit after inhalational induction since airway could not be maintained with bag and mask...
January 2017: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/28297956/wideband-analytical-equivalent-circuit-for-coupled-asymmetrical-nonaligned-slit-arrays
#5
Carlos Molero, Raúl Rodríguez-Berral, Francisco Mesa, Francisco Medina
Microstructured metallic devices have been extensively studied because of their interesting properties for controlling the transmission, reflection, and absorption of electromagnetic waves. A very simple implementation is an array of infinitely long parallel metal strips printed on a dielectric substrate. In the past few years, several analytical models have been reported based on the use of equivalent circuits with distributed and lumped components to account for the electrical performance of these structures...
February 2017: Physical Review. E
https://www.readbyqxmd.com/read/28293904/skin-lumps-and-leg-humps-an-unusual-presentation-of-a-common-visceral-malignancy
#6
Aakanksha Goel, Manish Kumar Gaur, Sonal Sharma, Pankaj Kumar Garg
No abstract text is available yet for this article.
March 15, 2017: Journal of Gastrointestinal Cancer
https://www.readbyqxmd.com/read/28293215/classification-of-different-degrees-of-disability-following-intracerebral-hemorrhage-a-decision-tree-analysis-from-vista-ich-collaboration
#7
Thanh G Phan, Jian Chen, Richard Beare, Henry Ma, Benjamin Clissold, John Van Ly, Velandai Srikanth
BACKGROUND AND PURPOSE: Prognostication following intracerebral hemorrhage (ICH) has focused on poor outcome at the expense of lumping together mild and moderate disability. We aimed to develop a novel approach at classifying a range of disability following ICH. METHODS: The Virtual International Stroke Trial Archive collaboration database was searched for patients with ICH and known volume of ICH on baseline CT scans. Disability was partitioned into mild [modified Rankin Scale (mRS) at 90 days of 0-2], moderate (mRS = 3-4), and severe disabilities (mRS = 5-6)...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28290239/an-innovative-design-for-cardiopulmonary-resuscitation-manikins-based-on-a-human-like-thorax-and-embedded-flow-sensors
#8
Mark Thielen, Rohan Joshi, Frank Delbressine, Sidarto Bambang Oetomo, Loe Feijs
Cardiopulmonary resuscitation manikins are used for training personnel in performing cardiopulmonary resuscitation. State-of-the-art cardiopulmonary resuscitation manikins are still anatomically and physiologically low-fidelity designs. The aim of this research was to design a manikin that offers high anatomical and physiological fidelity and has a cardiac and respiratory system along with integrated flow sensors to monitor cardiac output and air displacement in response to cardiopulmonary resuscitation. This manikin was designed in accordance with anatomical dimensions using a polyoxymethylene rib cage connected to a vertebral column from an anatomical female model...
March 2017: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/28289621/posterior-interosseous-nerve-syndrome-resulting-from-parosteal-lipoma-of-the-proximal-radius-an-elusive-diagnosis-yet-excellent-outcome
#9
Muhammad Saaiq, Saad Siddiui
A 53-year old man presented with seven months history of progressive weakness of extension of the digits and the thumb of the left hand. The wrist extension was normal and sensations were also intact. The patient had also been noticing a progressively enlarging lump on the lower anterolateral aspect of the left antecubital fossa for the last three months. Physical examination andelectro diagnostic studies revealed motor deficit along the posterior interosseous nerve (PIN) distribution with preservation of sensations...
January 2017: World Journal of Plastic Surgery
https://www.readbyqxmd.com/read/28288954/content-usability-and-utilization-of-plain-language-in-breast-cancer-mobile-phone-apps-a-systematic-analysis
#10
Tamar Ginossar, Sayyed Fawad Ali Shah, Andrew J West, Joshua M Bentley, Charlene A Caburnay, Matthew W Kreuter, Anita Y Kinney
BACKGROUND: Breast cancer is one of the leading contributors to preventable illness and death among women. Although mobile phone apps provide unprecedented opportunity to engage women along the cancer continuum, little is known about the availability, content, and usability of breast cancer mobile phone apps. OBJECTIVE: This study analyzed the content and adherence to literate design standards of all breast cancer-related apps available on the App Store and Google Play, as well as the relationship between their content, user ratings, and price...
March 13, 2017: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/28284459/unexpected-presentation-of-perianal-granular-cell-tumor-in-a-young-woman
#11
Laila Rashidi, Darren Pollock, Sarah Bastawrous
Granular cell tumors originate from Schwann cells of the soft tissues and are rarely observed in the perianal region. Often, correct diagnosis can be challenging owing to nonspecific clinical symptoms and imaging characteristics, as well as its ability to mimic other malignant lesions histologically. We describe the case of a previously healthy 36-year-old woman who presents with a slow growing, painless lump in her perianal region who underwent surgical excision and was found to have a granular cell tumor on microscopic evaluation...
January 14, 2017: Current Problems in Diagnostic Radiology
https://www.readbyqxmd.com/read/28283253/the-overlooked-role-of-facilitation-in-biodiversity-experiments
#12
REVIEW
Alexandra J Wright, David A Wardle, Ragan Callaway, Aurora Gaxiola
Past research has demonstrated that decreased biodiversity often reduces ecosystem productivity, but variation in the shape of biodiversity-ecosystem function (BEF) relationships begets the need for a deeper mechanistic understanding of what drives these patterns. While mechanisms involving competition are often invoked, the role of facilitation is overlooked, or lumped within several less explicitly defined processes (e.g., complementarity effects). Here, we explore recent advances in understanding how facilitation affects BEF relationships and identify three categories of facilitative mechanisms that can drive variation in those relationships...
March 8, 2017: Trends in Ecology & Evolution
https://www.readbyqxmd.com/read/28281287/application-of-a-lumped-parameter-model-to-study-the-feasibility-of-simultaneous-implantation-of-a-continuous-flow-ventricular-assist-device-vad-and-a-pulsatile-flow-vad-in-bivad-patients
#13
Arianna Di Molfetta, Gianfranco Ferrari, Roberta Iacobelli, Sergio Filippelli, Libera Fresiello, Paolo Guccione, Alessandra Toscano, Antonio Amodeo
The aim of this work is to develop and test a lumped parameter model of the cardiovascular system to simulate the simultaneous use of pulsatile (P) and continuous flow (C) ventricular assist devices (VADs) on the same patient. Echocardiographic and hemodynamic data of five pediatric patients undergoing VAD implantation were retrospectively collected and used to simulate the patients' baseline condition with the numerical model. Once the baseline hemodynamic was reproduced for each patient, the following assistance modalities were simulated: (a) CVAD assisting the right ventricle and PVAD assisting the left ventricle (RCF + LPF), (b) CVAD assisting the left ventricle and PVAD assisting the right ventricle (LCF + RPF)...
March 2017: Artificial Organs
https://www.readbyqxmd.com/read/28279429/stabilization-and-synchronization-for-a-mechanical-system-via-adaptive-sliding-mode-control
#14
Zhankui Song, Kaibiao Sun, Shuai Ling
In this paper, we investigate the synchronization problem of chaotic centrifugal flywheel governor with parameters uncertainty and lumped disturbances. A slave centrifugal flywheel governor system is considered as an underactuated following-system which a control input is designed to follow a master centrifugal flywheel governor system. To tackle lumped disturbances and uncertainty parameters, a novel synchronization control law is developed by employing sliding mode control strategy and Nussbaum gain technique...
March 6, 2017: ISA Transactions
https://www.readbyqxmd.com/read/28278120/new-gmo-regulations-for-old-determining-a-new-future-for-eu-crop-biotechnology
#15
John Davison, Klaus Ammann
In this review, current EU GMO regulations are subjected to a point-by point analysis to determine their suitability for agriculture in modern Europe. Our analysis concerns present GMO regulations as well as suggestions for possible new regulations for genome editing and New Breeding Techniques (for which no regulations presently exist). Firstly, the present GMO regulations stem from the early days of recombinant DNA and are not adapted to current scientific understanding on this subject. Scientific understanding of GMOs has changed and these regulations are now, not only unfit for their original purpose, but, the purpose itself is now no longer scientifically valid...
January 2, 2017: GM Crops & Food
https://www.readbyqxmd.com/read/28274029/radiotherapy-in-phyllodes-tumour
#16
Sunitha Susan Varghese, Balukrishna Sasidharan, Marie Therese Manipadam, M J Paul, Selvamani Backianathan
INTRODUCTION: Phyllodes Tumour (PT) of the breast is a relatively rare breast neoplasm (<1%) with diverse range of pathology and biological behaviour. AIM: To describe the clinical course of PT and to define the role of Radiotherapy (RT) in PT of the breast. MATERIALS AND METHODS: Retrospective analysis of hospital data of patients with PT presented from 2005 to 2014 was done. Descriptive statistics was used to analyze the results. Simple description of data was done in this study...
January 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28273978/renal-clear-cell-sarcoma-anaplastic-variant-a-rare-entity
#17
Vaishali Atmaram Walke, Nitin Y Shende, D T Kumbhalkar
Clear Cell Sarcoma of Kidney (CCSK) is known for its morphologic diversity, aggressive behaviour, tendency to recur and metastasis to bone. Amongst the various morphologic subtypes, anaplastic CCSK is associated with worse prognosis. Here, we report a case of this rare variant of CCSK. A five-year-old boy presented with history of lump and pain in abdomen since one week. The Computed Tomography (CT) scan revealed a large mass occupying the middle and inferior pole of right kidney. The clinical impression was Wilms tumour...
January 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28273359/two-compartment-modeling-of-tissue-microcirculation-revisited
#18
Gunnar Brix, Mona Salehi Ravesh, Jürgen Griebel
PURPOSE: Conventional two-compartment modeling of tissue microcirculation is used for tracer kinetic analysis of dynamic contrast-enhanced (DCE) computed tomography or magnetic resonance imaging studies although it is well known that the underlying assumption of an instantaneous mixing of the administered contrast agent (CA) in capillaries is far from being realistic. It was thus the aim of the present study to provide theoretical and computational evidence in favor of a conceptually alternative modeling approach that makes it possible to characterize the bias inherent to compartment modeling and, moreover, to approximately correct for it...
March 8, 2017: Medical Physics
https://www.readbyqxmd.com/read/28272661/primary-paediatric-renal-primitive-neuroectodermal-tumor-a-case-report-and-review-of-the-literature
#19
Binny Khandakar, Moumita Maiti, Soumit Dey, Prasenjit Sen Ray, Palas Bhattac Haryya, Ranu Sarkar
Ewing sarcoma/primitive neuroectodermal tumor (PNET) is a high-grade malignant neoplasm commonly affecting bones of the thoracic region. Primary Ewing sarcoma/PNET of the kidney is exceptional; it commonly affects young adults and is rarely reported in children. Here we describe a case of renal PNET in a 10-year-old girl who presented at our institute with haematuria and abdominal lump. Computer tomography scan revealed a huge mass in the right kidney. Computer tomography-guided aspiration from the mass showed cytomorphological features of a small blue round cell tumor...
February 4, 2017: Türk Patoloji Dergisi
https://www.readbyqxmd.com/read/28270941/a-lip-lump-an-unexpected-histological-diagnosis-of-a-lip-schwannoma
#20
Thomas Haigh, John Raad Glore, David Gouldesbrough, Winson Wong
Schwannomas are benign nerve sheath tumours arising from Schwann cells. They comprise 1% of all benign tumours. In the 2016 World Health Organisation Classification of Central Nervous System, they are classified as a tumour of the cranial and paraspinal nerves, Schwannoma 9560/0. A 23-year-old Caucasian lady presented with a seven-month history of a painless right upper lip lump. Examination revealed a small cystic 0.5 cm diameter lesion within the right upper lip. The clinical impression was that of a mucocele...
2017: Case Reports in Otolaryngology
keyword
keyword
86820
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"