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fluid volume excess

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https://www.readbyqxmd.com/read/27925707/natural-mineral-bottled-waters-available-on-the-polish-market-as-a-source-of-minerals-for-the-consumers-part-2-the-intake-of-sodium-and-potassium
#1
Anna Gątarska, Joanna Ciborska, Elżbieta Tońska
Background: Natural mineral waters are purchased and consumed according to consumer preferences and possible recommendations. The choice of appropriate water should take into account not only the general level of mineralization but also the content of individual components, including electrolytes such as sodium and potassium. Sodium is necessary to ensure the proper physiological functions of the body. It is defined as a health risk factor only when its excessive intake occurs. Potassium acts antagonistically towards sodium and calcium ions, contributes to a reduction of the volume of extracellular fluids and at the same time reduces muscle tension and permeability of cell membranes...
2016: Roczniki Państwowego Zakładu Higieny
https://www.readbyqxmd.com/read/27913815/-volume-therapy-in-the-severely-injured-patient-recommendations-and-current-guidelines
#2
Sigune Kaske, Marc Maegele
BACKGROUND: Volume therapy is a cornerstone of early resuscitation of severely injured trauma patients, but the optimal strategy remains under debate. A recent Cochrane review could not find evidence for or against early volume replacement or large versus small amounts of fluid. METHOD: Current recommendations and guidelines regarding volume therapy in severely injured patients are summarized based upon the updated European Trauma Guideline on the management of major bleeding and coagulopathy following trauma (fourth edition) and the S3-Guideline Polytrauma and combined with a selective review of the literature...
December 2, 2016: Der Unfallchirurg
https://www.readbyqxmd.com/read/27871561/perioperative-fluid-therapy-defining-a-clinical-algorithm-between-insufficient-and-excessive
#3
REVIEW
Mike S Strunden, Sascha Tank, Thoralf Kerner
In the perioperative scenario, adequate fluid and volume therapy is a challenging task. Despite improved knowledge on the physiology of the vascular barrier function and its respective pathophysiologic disturbances during the perioperative process, clear-cut therapeutic principles are difficult to implement. Neglecting the physiologic basis of the vascular barrier and the cardiovascular system, numerous studies proclaiming different approaches to fluid and volume therapy do not provide a rationale, as various surgical and patient risk groups, and different fluid regimens combined with varying hemodynamic measures and variable algorithms led to conflicting results...
December 2016: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/27846126/implementation-of-the-american-society-of-anesthesiology-s-guidelines-to-reduce-prolonged-fasting-times-in-pediatric-preoperative-patients-a-best-practice-implementation-project
#4
Carol M Costello
BACKGROUND: The American Society of Anesthesiology (ASA) guidelines for pediatric preoperative fasting have been a standard for well over a decade. However, use of protocols involving an excessive fasting duration exposes patients to the physiological impacts of fluid volume loss. OBJECTIVES: The current project aimed to improve fluid supplementation during presurgical fasting in pediatric patients at an academic medical center. Specific objectives were to increase clinical staff knowledge regarding ASA fasting standards and implement them in specific pediatric patient populations...
October 2016: JBI Database of Systematic Reviews and Implementation Reports
https://www.readbyqxmd.com/read/27829730/are-we-all-guilty-of-under-estimating-intra-operative-blood-loss-during-hip-fracture-surgery
#5
Basil Budair, Usman Ahmed, James Hodson, Michael David, Mujeeb Ashraf, Tim McBride
AIM: To assess how accurately orthopaedic surgeons and anaesthesiologists estimate intraoperative blood loss during hip fracture surgery as part of the Surgical Safety Checklist (SCC). METHODS: A prospective study of 55 operations over 9 months. Pre- and post-operative estimations of blood loss were documented. Actual blood loss was determined by subtracting total amount of lavage fluid used from overall volumes in the suction bag and by weighing used swabs. RESULTS: Both, surgeons and anaesthesiologists, significantly underestimated intraoperative blood loss (p < 0...
March 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/27828823/hold-the-pendulum-rates-of-acute-kidney-injury-are-increased-in-patients-who-receive-resuscitation-volumes-less-than-predicted-by-the-parkland-equation
#6
Stephanie A Mason, Avery B Nathens, Celeste C Finnerty, Richard L Gamelli, Nicole S Gibran, Brett D Arnoldo, Ronald G Tompkins, David N Herndon, Marc G Jeschke
OBJECTIVE: To determine whether restrictive fluid resuscitation results in increased rates of acute kidney injury (AKI) or infectious complications. BACKGROUND: Studies demonstrate that patients often receive volumes in excess of those predicted by the Parkland equation, with potentially detrimental sequelae. However, the consequences of under-resuscitation are not well-studied. METHODS: Data were collected from a multicenter prospective cohort study...
December 2016: Annals of Surgery
https://www.readbyqxmd.com/read/27822741/isolated-brain-trauma-in-cats-triggers-rapid-onset-of-hypovolemia
#7
Peter Bentzer, Per-Olof Grände
BACKGROUND: Hemodynamic instability responsive to fluid resuscitation is common after a traumatic brain injury (TBI), also in the absence of systemic hemorrhage. The present study tests if an isolated severe TBI induces a decrease in plasma volume (PV). METHODS: The study was performed in three groups of anesthetized and tracheostomized male cats (n = 21). In one group (n = 8), the cats were prepared with a cranial borehole (10 mm i.d) used to expose the brain to a fluid percussion brain injury (FPI) (1...
November 7, 2016: Neurocritical Care
https://www.readbyqxmd.com/read/27791015/overdrinking-swallowing-inhibition-and-regional-brain-responses-prior-to-swallowing
#8
Pascal Saker, Michael J Farrell, Gary F Egan, Michael J McKinley, Derek A Denton
In humans, drinking replenishes fluid loss and satiates the sensation of thirst that accompanies dehydration. Typically, the volume of water drunk in response to thirst matches the deficit. Exactly how this accurate metering is achieved is unknown; recent evidence implicates swallowing inhibition as a potential factor. Using fMRI, this study investigated whether swallowing inhibition is present after more water has been drunk than is necessary to restore fluid balance within the body. This proposal was tested using ratings of swallowing effort and measuring regional brain responses as participants prepared to swallow small volumes of liquid while they were thirsty and after they had overdrunk...
October 25, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27779417/explicit-incorporation-of-hard-and-soft-protein-protein-interactions-into-models-for-crowding-effects-in-binary-and-ternary-protein-mixtures-i-comparison-of-approximate-analytical-solutions-with-numerical-simulation
#9
Travis Hoppe, Allen P Minton
In order to better understand how nonspecific interactions between solutes can modulate specific biochemical reactions taking place in complex media, we introduce a simplified model aimed at elucidating general principles. In this model, solutions containing two or three species of interacting globular proteins are modeled as a fluid of spherical particles interacting through square well potentials that qualitatively capture both steric hard core repulsion and longer-ranged attraction or repulsion. The excess chemical potential, or free energy of solvation, of each particle species is calculated as a function of species concentrations, particle radii, and square well interaction range and depth...
October 25, 2016: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/27754173/sy-14-3-primary-aldosteronism-in-resistant-hypertension
#10
David Calhoun
: Resistant hypertension refers to patients with difficult-to-treat hypertension, generally defined as needing three or more medications of different classes, including, if tolerated, a diuretic. Observational studies indicate that the prevalence of resistant hypertension based on the preceding definition of needing 3 or medications for blood pressure (BP) control is approximately 15-20% of patients being treated for hypertension. However, causes of pseudoresistance are common, including poor BP technique, poor adherence, white coat effects, and under-treatment, all of which must be identified in order to distinguish apparent resistance from true treatment resistance...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27744075/prone-versus-sitting-position-in-neurosurgery-differences-in-patients-hemodynamic-management
#11
Teemu Luostarinen, Ann-Christine Lindroos, T Niiya, M Silvasti-Lundell, Alexey Schramko, Juha Hernesniemi, Tarja Randell, Tomi Niemi
OBJECTIVE: Neurosurgery in general anesthesia exposes patient to hemodynamic alternations both in prone and sitting position. As the comparison of the sitting and prone position in neurosurgery is scarce, we aimed to evaluate hemodynamic profile during stroke volume-directed fluid administration in patients undergoing neurosurgery either in sitting or prone position. METHODS: Thirty patients in prone and 28 in sitting position in two separate prospective trials were randomized to receive either Ringer's Acetate (RAC) or hydroxyethyl starch (HES 130 kDa/0...
October 12, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27738483/comparison-of-the-effectiveness-of-hydroxyethyl-starch-voluven-solution-with-normal-saline-in-hemorrhagic-shock-treatment-in-trauma
#12
Kambiz Masoumi, Arash Forouzan, Ali Asgari Darian, Alireza Rafaty Navaii
BACKGROUND: Appropriate fluid therapy affects morbidity and mortality rates. A conclusion is yet to be reached on the role of crystalloids and colloids in immediate fluid therapy. This study was done to determine the suitable solution in immediate resuscitation of patients with hemorrhagic shock caused by tissue trauma. METHODS: One hundred trauma patients with hemorrhagic shock, who underwent fluid therapy in the emergency unit, were assigned randomly to two groups of hydroxyethyl starch (Voluven) and normal saline...
November 2016: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/27736042/lung-and-cardiac-ultrasound-for-hemodynamic-monitoring-of-patients-with-severe-pre-eclampsia
#13
J Ambrozic, G Brzan Simenc, K Prokselj, N Tul, M Cvijic, M Lucovnik
OBJECTIVE: To evaluate lung and cardiac ultrasound for the assessment of fluid tolerance and fluid responsiveness before and after delivery in pregnant women with severe pre-eclampsia (PE). METHODS: This was a prospective observational study of singleton pregnant women with severe PE and healthy term controls. Lung ultrasound echo comet score (ECS), which denotes the amount of extravascular lung water, was obtained using the 28-rib interspaces technique. The echocardiographic E/e' ratio, measured by pulsed-wave and tissue Doppler, was used as a marker of diastolic left ventricular function...
October 13, 2016: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/27722160/monitoring-and-treatment-of-coagulation-disorders-in-end-stage-liver-disease
#14
REVIEW
Fuat H Saner, Carmen Kirchner
BACKGROUND: Patients with end-stage liver disease (ESLD) are assumed to be at high risk of bleeding when undergoing any kind of invasive intervention (any kind of operation, including transplantation or minimally invasive interventions). Both bleeding and thrombosis are associated with a poor outcome. METHODS: A selective literature research was conducted with the following key words: 'cirrhosis', 'coagulation', 'bleeding', 'INR' (international normalized ratio), 'aPTT' (activated partial thromboplastin time), and 'thrombocytopenia'...
August 2016: Visceral Medicine
https://www.readbyqxmd.com/read/27710151/exertional-hyponatremia-and-serum-sodium-change-during-ultraendurance-cycling
#15
Lawrence E Armstrong, Elaine C Lee, Douglas Casa, Evan C Johnson, Matthew S Ganio, Brendon McDermott, Jakob Vingren, Hymn M Oh, Keith H Williamson
Although case reports of exertional hyponatremia (EH) during prolonged exercise implicate retention of excess fluid, athletes with EH experience either loss, gain, or no change of body weight. Thus, the etiology and predisposing factors of EH may not be the same in all athletes. The present field investigation evaluated two unacquainted recreational cyclists (LC, 31y and AM, 39y) who began exercise with normal serum electrolytes but finished a summer 164-km ride (ambient, 34±5°C) with a serum [Na+] of 130 mmol/L...
October 6, 2016: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/27687456/comparison-of-esophageal-doppler-and-plethysmographic-variability-index-to-guide-intraoperative-fluid-therapy-for-low-risk-patients-undergoing-colorectal-surgery
#16
Samantha R Warnakulasuriya, Simon J Davies, R Jonathan T Wilson, David R A Yates
STUDY OBJECTIVE: This study aims to investigate if there is equivalence in volumes of fluid administered when intravenous fluid therapy is guided by Pleth Variability Index (PVI) compared to the established technology of esophageal Doppler in low-risk patients undergoing major colorectal surgery. DESIGN: Randomized controlled trial. SETTING: Operating room. PATIENTS: Forty low-risk patients undergoing elective colorectal surgery...
November 2016: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/27680807/f1-is-there-a-correlation-between-total-body-water-distribution-and-haemodynamic-changes-during-pregnancy
#17
I Pisani, D Lo Presti, G M Tiralongo, G Gagliardi, D Farsetti, B Vasapollo, G P Novelli, A Andreoli, H Valensise
INTRODUCTION: During pregnancy, maternal body composition and haemodynamics undergo important changes that are of increasing interest for understanding the evolving maternal physiology. Targets: To assess and correlate changes in body composition and haemodynamic function of healthy normotensive pregnant women. To identify different populations based on TVR values, we enrolled 235 patients subjected to bioimpedance analysis and haemodynamic assessment using the USCOM system. RESULTS: We found an increase of BMI as result of an increase of all its components and a change in water distribution: ECW percentage increases while ICW decreases (see table)...
August 2016: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/27680806/e5-lung-ultrasound-and-echocardiography-for-peripartum-haemodynamic-monitoring-of-patients-with-severe-preeclampsia
#18
J Ambrozic, K Prokselj, M Lucovnik
INTRODUCTION: The ability to judge intravascular volume is fundamental in the management of patients with severe preeclampsia. Insufficient intravascular volume can result in decreased oxygen delivery to tissues and exacerbates organ dysfunction. On the other hand, fluid excesses can lead to fluid extravasation and pulmonary edema. Outside of pregnancy, transthoracic echocardiography and lung ultrasonography have become important diagnostic and monitoring tools in critically ill patients...
August 2016: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/27659363/liberal-perioperative-fluid-administration-is-an-independent-risk-factor-for-morbidity-and-is-associated-with-longer-hospital-stay-after-rectal-cancer-surgery
#19
M R Boland, I Reynolds, N McCawley, E Galvin, S El-Masry, J Deasy, D A McNamara
INTRODUCTION Recent studies have advocated the use of perioperative fluid restriction in patients undergoing major abdominal surgery as part of an enhanced recovery protocol. Series reported to date include a heterogenous group of high- and low-risk procedures but few studies have focused on rectal cancer surgery alone. The aim of this study was to assess the effects of perioperative fluid volumes on outcomes in patients undergoing elective rectal cancer resection. METHODS A prospectively maintained database of patients with rectal cancer who underwent elective surgery over a 2-year period was reviewed...
September 23, 2016: Annals of the Royal College of Surgeons of England
https://www.readbyqxmd.com/read/27651134/review-of-the-fluid-flow-within-intervertebral-discs-how-could-in-vitro-measurements-replicate-in-vivo
#20
Hendrik Schmidt, Sandra Reitmaier, Friedmar Graichen, Aboulfazl Shirazi-Adl
By maintaining a balance between external mechanical loads and internal osmotic pressure, fluid content of intervertebral discs constantly alters causing fluctuations in disc hydration, height, diameter and pressure that govern disc temporal response. This paper reviews and discusses the relevant findings of earlier studies on the disc fluid flow with the aim to understand and remedy discrepancies between in vivo and in vitro observations. New results of finite element model studies are also exploited in order to help identify the likely causes for such differences and underlying mechanisms observed in vitro...
October 3, 2016: Journal of Biomechanics
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