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portable kidney

K Tangvoraphonkchai, A Davenport
BACKGROUND/OBJECTIVES: Patients with chronic kidney disease treated by haemodialysis (HD) are at increased risk of sarcopenia. Bioelectrical impedance spectroscopy (BIS) can be used to determine body composition, and is one of the several potential screening tools for sarcopenia. The newer generation of portable hand-held devices can be readily used in dialysis centres. The results from BIS devices using a two-compartmental model of body composition can be affected by hydration status and so ideally measurements should be made when patients are not overhydrated...
September 28, 2016: European Journal of Clinical Nutrition
Steven Kim, Benjamin Feinberg, Rishi Kant, Benjamin Chui, Ken Goldman, Jaehyun Park, Willieford Moses, Charles Blaha, Zohora Iqbal, Clarence Chow, Nathan Wright, William H Fissell, Andrew Zydney, Shuvo Roy
Hemodialysis using hollow-fiber membranes provides life-sustaining treatment for nearly 2 million patients worldwide with end stage renal disease (ESRD). However, patients on hemodialysis have worse long-term outcomes compared to kidney transplant or other chronic illnesses. Additionally, the underlying membrane technology of polymer hollow-fiber membranes has not fundamentally changed in over four decades. Therefore, we have proposed a fundamentally different approach using microelectromechanical systems (MEMS) fabrication techniques to create thin-flat sheets of silicon-based membranes for implantable or portable hemodialysis applications...
2016: PloS One
Ghaneh Fananapazir, Christoph Troppmann, Michael T Corwin, Arian M Nikpour, Sima Naderi, Ramit Lamba
PURPOSE: To determine the incidence of acute kidney injury (AKI), need for emergent dialysis, and renal graft loss in patients with kidney transplants, who underwent CT examinations with low-osmolality iodine-based contrast material (IBCM). MATERIALS AND METHODS: Our institutional review board approved this retrospective Health Insurance Portability and Accountability Act compliant study. From January 2005 to April 2015, a total of 224 CT examinations were performed using low-osmolality IBCM in patients with kidney transplants...
July 5, 2016: Abdominal Radiology
Yu-Liang Zhao, Ling Zhang, Ying-Ying Yang, Yi Tang, Jiao-Jiao Zhou, Yu-Ying Feng, Tian-Lei Cui, Fang Liu, Ping Fu
BACKGROUND: Resolvin D1 (RvD1) is a newly found anti-inflammatory bioactive compound derived from polyunsaturated fatty acids. The current study aimed to explore the protective effect of RvD1 on lipopolysaccharide (LPS)-induced acute kidney injury (AKI) and its possible mechanism. METHODS: Both in vivo and in vitro studies were conducted. Male BALB/c mice were randomly divided into control group (saline), LPS group (LPS 5 mg/kg), RvD1 group (RvD1 5 μg/kg + LPS 5 mg/kg), and blockage group (Boc-MLP 5 μg/kg + RvD1 5 μg/kg + LPS 5 mg/kg)...
May 5, 2016: Chinese Medical Journal
Takeshi Yokoo, Haley R Clark, Ivan Pedrosa, Qing Yuan, Ivan Dimitrov, Yue Zhang, Ildiko Lingvay, Muhammad S Beg, I Alexandru Bobulescu
PURPOSE: To evaluate renal lipid content in subjects with and without type II diabetes mellitus (DM2) using Dixon-based magnetic resonance imaging (MRI). MATERIALS AND METHODS: This retrospective study was approved by the Institutional Review Board and compliant with the Health Insurance Portability and Accountability Act. Sixty-nine adults with or without DM2 (n = 29, n = 40) underwent 3T MRI of the abdomen using 3D multiecho Dixon gradient-echo acquisition and proton-density fat fraction (FF) reconstruction...
March 23, 2016: Journal of Magnetic Resonance Imaging: JMRI
Daisuke Hasegawa, Akihito Tanaka, Daijo Inaguma, Eri Ito, Naoki Kamegai, Akiko Kato, Minami Mizutani, Hiroya Shimogushi, Hibiki Shinjo, Yasuhiro Otsuka, Asami Takeda
BACKGROUND: Recently, sleep apnea syndrome (SAS) has been associated with hypertension, cardiovascular disease and death. Patients with chronic kidney disease (CKD) have higher rates of SAS, atherosclerotic complications and death than do patients without CKD. Although the relationship between SAS and atherosclerosis is well known, few papers have described this relationship in humans, especially in CKD patients. PATIENTS AND METHODS: This was a cross-sectional study of 110 clinically stable, non-dialysis patients with CKD who attended a CKD educational program from April 2014 to September 2015...
February 2016: Cardiorenal Medicine
Phil Scott
Modern portable ultrasound scan machines provide the veterinary clinician with an inexpensive and noninvasive method to further examine sheep on farms, which should take no more than 5 minutes with the results available immediately. Repeat examinations allow monitoring of the disease process and assessment of therapy. 5 MHz linear array scanners can be used for most organs except the heart and right kidney. Transthoracic ultrasonography is particularly useful for critical evaluation of lung and pleural pathologies...
March 2016: Veterinary Clinics of North America. Food Animal Practice
Wee-Keat Cheah, Kunio Ishikawa, Radzali Othman, Fei-Yee Yeoh
Hemodialysis, one of the earliest artificial kidney systems, removes uremic toxins via diffusion through a semipermeable porous membrane into the dialysate fluid. Miniaturization of the present hemodialysis system into a portable and wearable device to maintain continuous removal of uremic toxins would require that the amount of dialysate used within a closed-system is greatly reduced. Diffused uremic toxins within a closed-system dialysate need to be removed to maintain the optimum concentration gradient for continuous uremic toxin removal by the dialyzer...
February 23, 2016: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
Maria Coma, Maria Jesús González-Moneo, Cristina Enjuanes, Paula Poveda Velázquez, Deva Bas Espargaró, Bernardo Andrés Pérez, Marta Tajes, Anna Garcia-Elias, Núria Farré, Gonzalo Sánchez-Benavides, Julio Martí-Almor, Josep Comin-Colet, Begoña Benito
In patients with chronic heart failure (HF), cognitive impairment (CI) is associated with poorer treatment adherence and higher readmission and mortality rates. Previous studies suggest that atrial fibrillation (AF) could impair cognitive function. This study sought to assess the association between permanent AF (permAF) and CI in patients with HF. We evaluated cognitive function in 881 patients with stable HF (73 ± 11 years, 44% women, 48% with preserved ejection fraction) using the Mini-Mental State Examination test (n = 876) and the Pfeiffer's Short Portable Mental Status Questionnaire (n = 848)...
January 15, 2016: American Journal of Cardiology
Anne M Muehe, Dan Feng, Rie von Eyben, Sandra Luna-Fineman, Michael P Link, Travis Muthig, Amy E Huddleston, Edward A Neuwelt, Heike E Daldrup-Link
OBJECTIVE: The aim of this study was to assess the safety profile of ferumoxytol as an intravenous magnetic resonance imaging contrast agent in children. MATERIALS AND METHODS: We prospectively evaluated the safety of ferumoxytol administrations as an "off-label" contrast agent for magnetic resonance imaging in nonrandomized phase 4 clinical trials at 2 centers. From September 2009 to February 2015, 49 pediatric patients (21 female and 28 male, 5-18 years) and 19 young adults (8 female and 11 male, 18-25 years) were reported under an investigator-initiated investigational new drug investigation with institutional review board approval, in health insurance portability and accountability act compliance, and after written informed consent of the child's legal representative or the competent adult patient was obtained...
April 2016: Investigative Radiology
Vittorio Miele, Claudia Lucia Piccolo, Michele Galluzzo, Stefania Ianniello, Barbara Sessa, Margherita Trinci
Baseline ultrasound is essential in the early assessment of patients with a huge haemoperitoneum undergoing an immediate abdominal surgery; nevertheless, even with a highly experienced operator, it is not sufficient to exclude parenchymal injuries. More recently, a new ultrasound technique using second generation contrast agents, named contrast-enhanced ultrasound (CEUS) has been developed. This technique allows all the vascular phase to be performed in real time, increasing ultrasound capability to detect parenchymal injuries, enhancing some qualitative findings, such as lesion extension, margins and its relationship with capsule and vessels...
2016: British Journal of Radiology
Jieli Kua, Liang-Ping Zhao, Theodoros Kofidis, Siew-Pang Chan, Tiong-Cheng Yeo, Huay-Cheem Tan, Chi-Hang Lee
OBJECTIVES: Acute kidney injury (AKI) is a common complication in patients who undergo coronary artery bypass grafting (CABG). Sleep apnoea is associated with sympathetic activation, inflammatory reaction and plaque burden. The possible status of sleep apnoea as a risk factor for AKI after CABG has not been studied. METHODS: We recruited 169 patients for an overnight sleep study using a Food and Drug Administration-approved portable device before they underwent elective CABG...
April 2016: European Journal of Cardio-thoracic Surgery
P S Sidhu
No abstract text is available yet for this article.
August 2015: Ultraschall in der Medizin
Chunmei Gu, Tian Lan, Hanchang Shi, Yi Lu
Melamine detection in milk and other foods has attracted much attention since the discovery that melamine-adulterated food causes severe kidney damage. Although many methods have been developed to detect melamine, few methods can provide quantitative results using an affordable and portable device that is suitable for home use or field application. To achieve this goal, we herein report the first in vitro selection of a melamine responsive aptamer using a structure-switching method. A personal glucose meter (PGM) based melamine sensor was designed and subsequently tested using the newly isolated aptamer...
August 4, 2015: Analytical Chemistry
Philip Magak, Alicia Chang-Cojulun, Hilda Kadzo, Edmund Ireri, Eric Muchiri, Uriel Kitron, Charles H King
Previous population-based studies have examined treatment impact on Schistosoma-associated urinary tract disease among children, but much less is known about longer-term treatment benefits for affected adult populations in areas where risk of recurrent infection is high. In communities in Msambweni, along the Kenya coast, we identified, using a portable ultrasound, 77 adults (aged 17-85) with moderate-to-severe obstructive uropathy or bladder disease due to Schistosoma haematobium. Treatment response was assessed by repeat ultrasound 1-2 years after praziquantel (PZQ) therapy and compared with interval changes among age- and sex-matched infected/treated control subjects who did not have urinary tract abnormalities at the time of initial examination...
August 2015: American Journal of Tropical Medicine and Hygiene
Kumud K Dhital, Arjun Iyer, Mark Connellan, Hong C Chew, Ling Gao, Aoife Doyle, Mark Hicks, Gayathri Kumarasinghe, Claude Soto, Andrew Dinale, Bruce Cartwright, Priya Nair, Emily Granger, Paul Jansz, Andrew Jabbour, Eugene Kotlyar, Anne Keogh, Christopher Hayward, Robert Graham, Phillip Spratt, Peter Macdonald
BACKGROUND: Orthotopic heart transplantation is the gold-standard long-term treatment for medically refractive end-stage heart failure. However, suitable cardiac donors are scarce. Although donation after circulatory death has been used for kidney, liver, and lung transplantation, it is not used for heart transplantation. We report a case series of heart transplantations from donors after circulatory death. METHODS: The recipients were patients at St Vincent's Hospital, Sydney, Australia...
June 27, 2015: Lancet
N A Bazaev, B M Putria, E V Strel'tsov
No abstract text is available yet for this article.
November 2014: Meditsinskaia Tekhnika
Kelly R Dietz, Lei Zhang, Frank G Seidel
BACKGROUND: Prior to digital radiography it was possible for a radiologist to easily estimate the size of a patient on an analog film. Because variable magnification may be applied at the time of processing an image, it is now more difficult to visually estimate an infant's size on the monitor. Since gestational age and weight significantly impact the differential diagnosis of neonatal diseases and determine the expected size of kidneys or appearance of the brain by MRI or US, this information is useful to a pediatric radiologist...
August 2015: Pediatric Radiology
Konrad Friedrich Stock, Bettina Klein, Dominik Steubl, Christian Lersch, Uwe Heemann, Stefan Wagenpfeil, Florian Eyer, Dir-Andre Clevert
PURPOSE: Time savings and clinical accuracy of a new miniature ultrasound device was investigated utilizing comparison with conventional high-end ultrasound instruments. Our objective was to determine appropriate usage and limitations of this diagnostic tool in internal medicine. METHODS: We investigated 28 patients from the internal-medicine department. Patients were examined with the Acuson P10 portable device and a Sonoline Antares instrument in a cross-over design...
October 2015: Abdominal Imaging
S Antwi, K E K Aboah, C K G Sarpong
Urinary schistosomiasis is a parasitic disease caused by Shistosoma haematobium. It is prevalent in several parts of Africa particularly in areas where there are large water bodies. In most affected communities, the condition is often accepted as normal since to them, all growing children pass blood in their urine and "grow out of it". Mass treatment of school children has been a regular exercise often undertaken by stake holders to decrease the disease burden and reduce transmission in selected communities...
December 2014: Ghana Medical Journal
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