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https://www.readbyqxmd.com/read/28810281/-hyponatremia-differential-diagnosis-and-treatment
#1
Heiner Mönig, Alexander Arlt
Hyponatremia is the most common electrolyte abnormality seen in hospitalized patients, with up to 30 % having a plasma sodium concentration below 135 mmol/l. It is now clear that the clinical problem extends beyond the neurological symptoms, which can be explained by intracerebral osmotic fluid shifts and brain edema. Instead, chronic hyponatremia is associated with impaired gait stability and an increased risk of bone fragility fractures. Moreover, hyponatremia has been demonstrated to be an indicator of poor prognosis in a variety of conditions...
August 2017: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/28806049/electrolytes-oral-electrolyte-solutions
#2
Lisa Harris
Oral electrolyte solutions are used widely for rehydration in diarrheal illness and to maintain hydration during vigorous exercise. In diarrheal illness, an oral rehydration solution (ORS) typically is preferred over intravenous fluids except for patients with severe dehydration. The preferred ORS is one similar to the glucose-containing reduced osmolarity World Health Organization ORS. There also are polymer-based solutions that use rice or wheat as the source of carbohydrates but these are not widely recommended...
August 2017: FP Essentials
https://www.readbyqxmd.com/read/28801072/irinotecan-chemotherapy-induced-intestinal-oxidative-stress-underlying-causes-of-disturbed-mucosal-water-and-electrolyte-transport
#3
Kaïs Rtibi, Slimen Selmi, Dhekra Grami, Hichem Sebai, Mohamed Amri, Lamjed Marzouki
Irinotecan, a chemotherapy drug, can cause acute diarrhea immediately after administration. Hence, the present study was designed to investigate the gastrointestinal (GI) disturbances after an intraperitoneal (IP) administration of irinotecan in rats.Twenty Wistar rats were separated into two groups of ten. Group A was considered as a control group (NaCl, 0.9%). Group B was treated with irinotecan at a single dose of 200mgkg(-1). The rats were observed for defecation. For the enteropooling test, the animals were sacrificed by decapitation 1h post-treatment...
July 23, 2017: Pathophysiology: the Official Journal of the International Society for Pathophysiology
https://www.readbyqxmd.com/read/28799360/system-size-effects-in-ionic-fluids-under-periodic-boundary-conditions
#4
Jeff P Thompson, Isaac C Sanchez
We investigate the system-size dependence of the thermodynamic properties of ionic fluids under periodic boundary conditions. Following an approach previously developed in the context of quantum Monte Carlo simulations of many-electron systems, we show that the leading-order finite-size artifact in the Coulomb energy per particle of a classical fluid of N structureless ions at given density and temperature is simply -kBT(2N)(-1). Analytical approximations for the periodicity-induced size dependence of the excess thermodynamic properties of the fluid in the weak-coupling regime are obtained within the linearized Debye-Hückel theory...
December 7, 2016: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28794292/cross-linked-polyelectrolyte-and-its-function-in-adsorption-of-fluid-and-excess-nitrogen-waste-products-an-experimental-study-on-dialysate-effluent-fluid
#5
Hamid Tayebi Khosroshahi, Behzad Abedi, Sabalan Daneshvar, Effat Alizadeh, Mohammadreza Khalilzadeh, Yaghoub Abedi
INTRODUCTION: One of the most important issues in patients with chronic kidney disease is fluid retention and volume overload accompanied by retention of nitrogenous waste products and some electrolytes. Bowel fluid contains high levels of urea, creatinine, uric acid, and electrolytes, which make it a potential candidate for intestinal excretion of nitrogen wastes and electrolytes. Cross-linked polyelectrolyte (CLP) is a polymer that, given orally, absorbs excess fluid, electrolyte, and nitrogenous waste products...
July 2017: Iranian Journal of Kidney Diseases
https://www.readbyqxmd.com/read/28770121/necrotizing-pneumonia-an-emerging-problem-in-children
#6
REVIEW
I Brent Masters, Alan F Isles, Keith Grimwood
BACKGROUND: In children, necrotizing pneumonia (NP) is an uncommon, severe complication of pneumonia. It is characterized by destruction of the underlying lung parenchyma resulting in multiple small, thin-walled cavities and is often accompanied by empyema and bronchopleural fistulae. REVIEW: NP in children was first reported in children in 1994, and since then there has been a gradual increase in cases, which is partially explained by greater physician awareness and use of contrast computed tomography (CT) scans, and by temporal changes in circulating respiratory pathogens and antibiotic prescribing...
2017: Pneumonia
https://www.readbyqxmd.com/read/28763135/nonlinear-electrokinetic-effects-in-insulator-based-dielectrophoretic-systems
#7
Qianru Wang, Naga Neehar Dingari, Cullen R Buie
Insulator-based dielectrophoresis (iDEP) has emerged as a powerful tool for multiple biomicrofluidic operations, such as cell separation and concentration. The key feature for iDEP systems is the alteration of insulating microchannel geometries to create strong electric field gradients. Under AC electric fields, this strong electric field gradient can affect fluid flow by (at least) two nonlinear electrokinetic phenomena; a) electrothermal flow due to Joule heating and b) induced charge electroosmosis (ICEO) near the microchannel constrictions of small (but finite) permittivity and conductivity...
August 1, 2017: Electrophoresis
https://www.readbyqxmd.com/read/28762228/-a-systematic-review-and-meta-analysis-of-the-pros-and-cons-of-consuming-liquids-preoperatively
#8
Fang-Tzu Lin, Tsai-Rung Lin, Chia-Wei Liao, Shu-Hui Chen
BACKGROUND: Preoperative anesthesia long time fasting, may increase patient hemodynamic instability during surgery and may affect the patient's post-surgery electrolyte balance. No meta-analysis has been conducted to explore the effects of preoperative liquid intake amount on gastric fluid PH, gastric fluid volume, surgery inhalation of pulmonary complications, and patient self-perceptions quality of care systematic review and meta-analysis of the literature. PURPOSE: To assess the pros and cons of preoperative liquid intake using a systematic review of the literature...
August 2017: Hu Li za Zhi the Journal of Nursing
https://www.readbyqxmd.com/read/28761566/many-faces-of-renin-angiotensin-system-focus-on-eye
#9
REVIEW
Mervi Holappa, Heikki Vapaatalo, Anu Vaajanen
The renin-angiotensin system (RAS), that is known for its role in the regulation of blood pressure as well as in fluid and electrolyte homeostasis, comprises dozens of angiotensin peptides and peptidases and at least six receptors. Six central components constitute the two main axes of the RAS cascade. Angiotensin (1-7), an angiotensin converting enzyme 2 and Mas receptor axis (ACE2-Ang(1-7)-MasR) counterbalances the harmful effects of the angiotensin II, angiotensin converting enzyme 1 and angiotensin II type 1 receptor axis (ACE1-AngII-AT1R) Whereas systemic RAS is an important factor in blood pressure regulation, tissue-specific regulatory system, responsible for long term regional changes, that has been found in various organs...
2017: Open Ophthalmology Journal
https://www.readbyqxmd.com/read/28754139/evidence-of-altered-haemostasis-in-an-ovine-model-of-venovenous-extracorporeal-membrane-oxygenation-support
#10
Margaret R Passmore, Yoke L Fung, Gabriela Simonova, Samuel R Foley, Sara D Diab, Kimble R Dunster, Michelle M Spanevello, Charles I McDonald, John-Paul Tung, Natalie M Pecheniuk, Karen Hay, Kiran Shekar, John F Fraser
BACKGROUND: Extracorporeal membrane oxygenation (ECMO) is a life-saving modality used in the management of cardiopulmonary failure that is refractory to conventional medical and surgical therapies. The major problems clinicians face are bleeding and clotting, which can occur simultaneously. To discern the impact of pulmonary injury and ECMO on the host's haemostatic response, we developed an ovine model of smoke-induced acute lung injury (S-ALI) and ECMO. The aims of this study were to determine if the ECMO circuit itself altered haemostasis and if this was augmented in a host with pulmonary injury...
July 29, 2017: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/28746899/hypertonic-saline-in-critical-illness-a-systematic-review
#11
REVIEW
Carmen Andrea Pfortmueller, Joerg C Schefold
INTRODUCTION: The optimal approach to fluid management in critically ill patients is highly debated. Fluid resuscitation using hypertonic saline was used in the past for more than thirty years, but has recently disappeared from clinical practice. Here we provide an overview on the currently available literature on effects of hypertonic saline infusion for fluid resuscitation in the critically ill. METHODS: Systematic analysis of reports of clinical trials comparing effects of hypertonic saline as resuscitation fluid to other available crystalloid solutions...
June 19, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28723186/ingestible-sensors
#12
Kourosh Kalantar-Zadeh, Nam Ha, Jian Zhen Ou, Kyle J Berean
Ingestible sensing capsules are fast emerging as a critical technology that has the ability to greatly impact health, nutrition, and clinical areas. These ingestible devices are noninvasive and hence are very attractive for customers. With widespread access to smart phones connected to the Internet, the data produced by this technology can be readily seen and reviewed online, and accessed by both users and physicians. The outputs provide invaluable information to reveal the state of gut health and disorders as well as the impact of food, medical supplements, and environmental changes on the gastrointestinal tract...
April 28, 2017: ACS Sensors
https://www.readbyqxmd.com/read/28711066/ion-association-at-discretely-charged-dielectric-interfaces-giant-charge-inversion
#13
Zhi-Yong Wang, Jianzhong Wu
Giant charge reversal has been identified for the first time by Monte Carlo simulation for a discretely charged surface in contact with a trivalent electrolyte solution. It takes place regardless of the surface charge density under study and the monovalent salt. In stark contrast to earlier predictions based on the 2-dimensional Wigner crystal model to describe strong correlation of counterions at the macroion surface, we find that giant charge reversal reflects an intricate interplay of ionic volume effects, electrostatic correlations, surface charge heterogeneity, and the dielectric response of the confined fluids...
July 14, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28709201/electrohydrodynamic-instability-of-ion-concentration-shock-wave-in-electrophoresis
#14
Rahul Gaur, Supreet Singh Bahga
Capillary electrophoresis techniques often involve ion-concentration shock waves in an electrolyte solution, propagating under the effect of an external electric field. These shock waves are characterized by self-sharpening gradients in ion concentrations and electrical conductivity that are collinear with the electric field. The coupling of electric field and fluid motion at the shock interface sometimes leads to an undesirable electrohydrodynamic (EHD) instability. Using linear stability analysis, we describe the motion of small-amplitude disturbances of an electrophoretic shock wave...
June 2017: Physical Review. E
https://www.readbyqxmd.com/read/28693742/impact-of-cirrhosis-in-patients-who-underwent-surgical-aortic-valve-replacement
#15
Robert J Steffen, Faisal G Bakaeen, Patrick R Vargo, Bogdan A Kindzelski, Douglas R Johnston, Eric E Roselli, A Marc Gillinov, Lars G Svensson, Edward G Soltesz
Cirrhosis is known to adversely affect cardiac surgery outcomes. Our objective was to quantify the morbidity, mortality, and cost that cirrhosis adds to surgical aortic valve replacement. From 1998 to 2011, 423,789 patients in the Nationwide Inpatient Sample Healthcare Cost Utilization Project underwent isolated aortic valve replacement; 2,769 (0.7%) had cirrhosis. Multivariable linear regression and 1:1 propensity matching were used to determine the effect of cirrhosis on postsurgical outcomes. The number of patients with cirrhosis who underwent surgical aortic valve replacement per year more than tripled during the 13-year study period...
May 30, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28686506/the-impact-of-aging-on-epithelial-barriers
#16
Alan R Parrish
The epithelium has many critical roles in homeostasis, including an essential responsibility in establishing tissue barriers. In addition to the fundamental role in separating internal from external environment, epithelial barriers maintain nutrient, fluid, electrolyte and metabolic waste balance in multiple organs. While, by definition, barrier function is conserved, the structure of the epithelium varies across organs. For example, the skin barrier is a squamous layer of cells with distinct structural features, while the lung barrier is composed of a very thin single cell to minimize diffusion space...
June 26, 2017: Tissue Barriers
https://www.readbyqxmd.com/read/28665367/-algorithms-of-the-correction-of-fluid-and-electrolyte-disorders-in-patients-with-severe-ischemic-stroke
#17
V I Ershov, A N Chirkov
AIM: To develop a practical algorithm for the correction of sodium levels and osmolality of blood plasma during the acute period of severe ischemic stroke (IS). MATERIAL AND METHODS: One hundred and fifty patients with cardioembolic or atherothrombotic stroke, aged from 30 to 80 years, hospitalized in the first 12 h after symptom emergence, were examined. Neurological deficit was assessed with the NIHSS. The monitoring of blood plasma sodium level and osmolality of blood plasma in the 1st and 5th day after stroke as well as of blood circulation volume was performed...
2017: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/28660810/intravenous-fluid-and-electrolyte-administration-in-elective-gastrointestinal-surgery-mechanisms-of-excessive-therapy
#18
R G Simpson, J Quayle, N Stylianides, G Carlson, M Soop
INTRODUCTION While clinical guidelines stress the importance of the judicious perioperative intravenous fluid administration, data show that adherence to these protocols is poor. The reasons have not been identified. We therefore audited the magnitude and indications of fluid and electrolyte administration in a teaching hospital. We hypothesised that epidural analgesia is associated with excessive fluid therapy. MATERIALS AND METHODS Intravenous fluid and electrolyte administration during the day of surgery and the subsequent 2 days in consecutive patients undergoing elective gastrointestinal surgery between November 2013 and May 2014 were retrospectively audited...
July 2017: Annals of the Royal College of Surgeons of England
https://www.readbyqxmd.com/read/28657837/mckittrick-wheelock-syndrome-treated-by-transanal-minimally-invasive-surgery-a-single-center-experience-and-review-of-the-literature
#19
Anne Elisabeth Maria van der Pool, Eelco Jan Rade de Graaf, Maarten Vermaas, Renée Martine Barendse, Pascal Gabriël Doornebosch
INTRODUCTION: McKittrick Wheelock Syndrome (MKWS) is a rare syndrome characterized by secretory diarrhea, dehydration, prerenal acute kidney injury, and severe electrolyte abnormalities caused by a large hypersecretory villous adenoma located in the rectum or rectosigmoid junction. Transabdominal (laparoscopic) procedures are the most described procedures in the treatment of MKWS. We report an alternative surgical approach, transanal minimally invasive surgery (TAMIS), to solve this syndrome...
June 28, 2017: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/28656648/prenatal-incision-of-ureterocele-causing-bladder-outlet-obstruction-a-multicenter-case-series
#20
Gihad Chalouhi, Anne-Maude Morency, Roland De Vlieger, José Maria Martinez, Thomas Blanc, Ryan Hodges, Alexandra Gueneuc, Greg Ryan, Jan Deprest, Eduard Gratacos, Yves Ville
We reviewed data from a cohort of fetuses with ureterocele diagnosed and operated prenatally in four fetal therapy centers. Inclusion criteria were: (1)ureterocele confirmed on detailed fetal ultrasound examination, (2)absence of additional fetal malformations (3)fetal intervention to decompress the ureterocele with local institutional review boards' approval. Data on sonographic follow-up, obstetrical, neonatal outcome and postnatal evaluation were collected. Ten cases of prenatally treated ureterocele are described...
June 27, 2017: Prenatal Diagnosis
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