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Fluid and electrolyte balance

Ana Margarida Monteiro, Olinda Marques, Sofia Martins, Ana Antunes
The authors report a case of a 15-year-old girl with hypopituitarism due to pituitary stalk interruption syndrome diagnosed in the neonatal period. The patient was admitted to the emergency room with impaired consciousness and hypoglycaemia. The day before, she increased her water intake to about 1.5 L to perform a pelvic ultrasound. In the following hours, she developed vomiting and food refusal. Blood analysis revealed hypoglycaemia, hyponatraemia, decreased serum osmolality and normal urinary density. Hyponatraemia and adrenal crisis were managed with a gradual but slow resolution of consciousness and electrolytic balance...
March 9, 2018: BMJ Case Reports
Katja N Adamik, Rafael Obrador, Judith Howard
OBJECTIVE: To evaluate the effects of a 6% hydroxyethyl starch (130/0.42) in either a buffered, electrolyte-balanced (HES-BAL) or saline (HES-SAL) carrier solution on electrolyte concentrations and acid-base parameters in healthy anaesthetized dogs. STUDY DESIGN: Prospective randomised clinical study. ANIMALS: A group of 40 client-owned dogs undergoing general anaesthesia for elective surgical procedures or diagnostic imaging. METHODS: During anaesthesia, dogs were intravenously administered 15 mL kg-1 of either HES-SAL (n = 20) or HES-BAL (n = 20) over 30-40 minutes...
January 11, 2018: Veterinary Anaesthesia and Analgesia
Daniela Chlíbková, Pantelis T Nikolaidis, Thomas Rosemann, Beat Knechtle, Josef Bednář
Purpose: Hypohydration and hyperhydration are significant disorders of fluid metabolism in endurance performance; however, little relevant data exist regarding multi-stage endurance activities. The aim of the present study was to examine the effect of running seven marathons in 7 consecutive days on selected anthropometric, hematological and biochemical characteristics with an emphasis on hydration status. Methods: Participants included 6 women and 20 men (age 42.6 ± 6.2 years). Data was collected before day 1 (B1 ) and after day 1 (A1 ), 4 (A4 ), and 7 (A7 )...
2018: Frontiers in Physiology
Alexander Ziebart, Christian Möllmann, Andreas Garcia-Bardon, Jens Kamuf, Moritz Schäfer, Rainer Thomas, Erik K Hartmann
BACKGROUND: During early treatment of haemorrhagic shock maintenance of cerebral and end-organ oxygen supply by fluid resuscitation is mandatory. Gelatin-polysuccinat (GP) recently regained attention despite a still unclear risk profile and widely unknown effects on cerebral and peripheral microcirculation. This study investigates the effects of GP versus balanced electrolyte solution (BEL) with focus on cerebral regional oxygen saturation and peripheral microcirculation in a porcine haemorrhagic shock model...
February 9, 2018: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine
Lindsay B Baker, Corey T Ungaro, Bridget C Sopeña, Ryan P Nuccio, Adam J Reimel, James M Carter, John R Stofan, Kelly A Barnes
This study determined the relations between regional (REG) and whole body (WB) sweating rate (RSR and WBSR, respectively) and REG and WB sweat [Na+] during exercise. Twenty-six recreational athletes (17 men, 9 women) cycled for 90 min while WB sweat [Na+] was measured using the washdown technique. RSR and REG sweat [Na+] were measured from 9 regions using absorbent patches. RSR and REG sweat [Na+] from all regions were significantly (p<0.05) correlated with WBSR (r=0.58-0.83) and WB sweat [Na+] [r=0.74-0...
February 8, 2018: Journal of Applied Physiology
Doreen Crawford
Fluid requirements differ between infants and children. It is important for children's nurses to understand the principles of fluid mechanics and apply this understanding to ensure each child's state of hydration, and thereby preserve their safety and well-being. This two-part article aims to introduce the concept of fluid balance and electrolytes to children's nursing students, help them identify what is normal and what is not, and provide guidance on what actions should be taken when problems occur. It may also be useful for registered nurses to use for revalidation...
February 7, 2018: Nursing Children and Young People
Mohamad Hasyizan Hassan, Wan Mohd Nazaruddin Wan Hassan, Rhendra Hardy Mohd Zaini, Wan Fadzlina Wan Muhd Shukeri, Huda Zainal Abidin, Chong Soon Eu
Background: Normal saline (NS) is a common fluid of choice in neurosurgery and neuro-intensive care unit (ICU), but it does not contain other electrolytes and has the potential to cause hyperchloremic metabolic acidosis with prolonged infusion. These problems may be reduced with the availability of balanced fluid (BF), which becomes a more physiological isotonic solution with the presence of complete electrolyte content. This study aimed to compare the changes in electrolytes and acid-base between NS and BF (Sterofundin® ISO) therapy for post-operative severe traumatic brain injury (TBI) patients in neuro-ICU...
October 2017: Malaysian Journal of Medical Sciences: MJMS
Wilfried Klingert, Jörg Peter, Christian Thiel, Karolin Thiel, Wolfgang Rosenstiel, Kathrin Klingert, Christian Grasshoff, Alfred Königsrainer, Martin Schenk
BACKGROUND: Automated systems are available in various application areas all over the world for the purpose of reducing workload and increasing safety. However, such support systems that would aid caregivers are still lacking in the medical sector. With respect to workload and safety, especially, the intensive care unit appears to be an important and challenging application field. Whereas many closed-loop subsystems for single applications already exist, no comprehensive system covering multiple therapeutic aspects and interactions is available yet...
January 16, 2018: Intensive Care Medicine Experimental
Lili Huang, Xiaoshuang Zhou, Hai Yu
BACKGROUND: Fluid maintenance and resuscitation is an important strategy during major surgeries. There has been a debate on the choice of crystalloids over the past decades. 0.9% saline (normal saline) is more likely to cause hyperchloremic acidosis when compared to balanced crystalloids with low chloride content. Meta-analyses comparing these two kinds of crystalloids have been performed in renal transplantations. We aim to compare the safety of balanced crystalloids to normal saline among adult patients undergoing non-renal surgery...
January 12, 2018: International Journal of Surgery
V V Ivanova, I V Milto, I V Sukhodolo, O N Serebryakova, A V Buzenkova
Major salivary glands play a role not only in digestion, but also in regulation of other functions in rodents. In this review, we analyzed and summarized the data about the rodents' parotid, submandibular and sublingual salivary glands functions, which is not limited to the production of saliva and action of its hydrolytic enzymes on food in the oral cavity. In recent decades significantly expanded understanding of major salivary glands nondigestive functions. They are involved in excretion of metabolic products, maintaining fluid and electrolyte balance...
January 2017: Uspekhi Fiziologicheskikh Nauk
Tamara M Kear
Optional function of body systems depends upon fluid and electrolyte balance; however, across the lifespan, disorders of fluid and electrolytes offset this, and the causative factors are varied. Nurses play a major role in the management of fluid and electrolyte balance. This article focuses on the role total body water content, plasma proteins, kidney function, and drug metabolism have on the age-related physiology impacting fluid and electrolyte balance, and on nursing implications.
November 2017: Nephrology Nursing Journal: Journal of the American Nephrology Nurses' Association
Charlotte Graugaard-Jensen, Gitte M Hvistendahl, Jørgen Frøkiær, Peter Bie, Jens Christian Djurhuus
To test the hypothesis that use of oral contraceptives (OC) changes diurnal variation in fluid balance mechanisms including blood pressure, secretion of vasopressin and oxytocin, and renal water and electrolyte excretion. Fifteen naturally cycling (NC) women in mid-follicular phase and 11 long-term OC users were included in a 24-h standardized inpatient study for measurements of vasopressin, oxytocin, sodium, and osmolality in plasma as well as urinary excretion of electrolytes, aquaporin-2, and prostaglandin E2...
December 2017: Physiological Reports
Sabrina M Hormann, Lindsay E Davis, Elizabeth K Pogge
BACKGROUND: Heart failure prevalence continues to rise in the United States causing significant morbidity and mortality and costing billions in healthcare expenditures. Consensus guidelines updated in 2016 recommend an angiotensin receptor-neprilysin inhibitor (ARNi) as a therapeutic option in lieu of an angiotensin-converting enzyme inhibitor or angiotensin receptor blocker for the management of stage C heart failure with reduced ejection fraction (HFrEF). For chronic HFrEF patients with New York Heart Association class II or III symptoms tolerating an angiotensin-converting enzyme inhibitor/angiotensin receptor blocker, a change in therapy to an ARNi is recommended to further reduce morbidity and mortality...
December 11, 2017: Journal of Cardiovascular Nursing
Hitomi Terasaki, Shinichi Ito
When general anesthesia is administered for patients considered at high risk for rhabdomyolysis, appropriate precautions are warranted. The use of suitable anesthetics, with attention to intravenous fluid management, electrolyte balance, respiration, and metabolism, should be addressed. We performed general anesthesia for dental treatment and biopsy for fibrous hyperplasia of the buccal mucosa in a patient with a history of rhabdomyolysis. We utilized thiamylal sodium, midazolam, rocuronium bromide, nitrous oxide, fentanyl, and remifentanil without using volatile anesthetics and propofol for this case...
2017: Anesthesia Progress
H Wiig, F C Luft, J M Titze
The role of salt in the pathogenesis of arterial hypertension is not well understood. According to the current understanding, the central mechanism for blood pressure (BP) regulation relies on classical studies linking BP and Na+ balance, placing the kidney at the very centre of long-term BP regulation. To maintain BP homeostasis, the effective circulating fluid volume and thereby body Na+ content has to be maintained within very narrow limits. From recent work in humans and rats, the notion has emerged that Na+ could be stored somewhere in the body without commensurate water retention to buffer free extracellular Na+ and that previously unidentified extrarenal, tissue-specific regulatory mechanisms are operative regulating the release and storage of Na+ from a kidney-independent reservoir...
March 2018: Acta Physiologica
Steven Hendrickx, Karen Van Vlimmeren, Ingrid Baar, Walter Verbrugghe, Karolien Dams, Sophie Van Cromphaut, Ella Roelant, Bart Embrecht, Anouk Wittock, Pieter Mertens, Jeroen M Hendriks, Patrick Lauwers, Paul E Van Schil, Amaryllis H Van Craenenbroeck, Tim Van den Wyngaert, Philippe Jorens, Niels Van Regenmortel
BACKGROUND: Although prescribed to every patient undergoing surgery, maintenance fluid therapy is a poorly researched part of perioperative fluid therapy. The tonicity of the chosen solutions, could be an important cause of morbidity, with hyponatremia being a potential side effect of hypotonic solutions, where isotonic solution could lead to fluid overload. METHODS: The TOPMAST-trial is an ongoing prospective single-center double-blind randomized trial comparing an isotonic and a hypotonic maintenance fluid strategy during and after surgery in patients undergoing different types of major thoracic surgery...
2017: Anaesthesiology Intensive Therapy
Robert Sümpelmann
The objective of this consensus-based S1 Guideline for perioperative fluid therapy in children is to maintain or re-establish the child's homeostasis. Therefore, the perioperative fasting times should be as short as possible to prevent patient discomfort, dehydration, and ketoacidosis. For the intraoperative background infusion a physiologically composed balanced isotonic electrolyte solution (BS) with 1 - 2.5% glucose is recommended to maintain normal glucose concentrations and to avoid hyponatremia, hyperchloremia, and lipolysis...
November 2017: Anästhesiologie, Intensivmedizin, Notfallmedizin, Schmerztherapie: AINS
Amadeus Lešnik, Nejc Piko, Danica Železnik, Sebastjan Bevc
Dehydration in older adults is an important clinical problem associated with more comorbidities, longer hospital stays, and higher mortality rates. However, in daily clinical practice, no single gold standard marker of hydration status in older adults is available. The aim of the current study was to define the fluid balance status in older adults residing in institutional care or the home. Four hundred ten patients (192 from institutional care and 218 from home care) 65 and older from the region of lower Styria (Slovenia) were included in the study...
November 1, 2017: Research in Gerontological Nursing
Thomas Langer, Rosamaria Limuti, Concezione Tommasino, Niels van Regenmortel, Els L I M Duval, Pietro Caironi, Manu L N G Malbrain, Antonio Pesenti
Human beings are constituted mainly of water. In particular, children's total body water might reach 75-80% of their body weight, compared to 60-70% in adults. It is therefore not surprising, that children, especially hospitalized newborns and infants, are markedly prone to water and electrolyte imbalances. Parenteral fluid therapy is a cornerstone of medical treatment and is thus of exceptional relevance in this patient population. It is crucial to appreciate the fact that intravenous fluids are drugs with very different characteristics, different indications, contraindications and relevant side effects...
November 18, 2017: Anaesthesiology Intensive Therapy
Ya-Lan Hsu, Chia-En Hsieh, Kuo-Hua Lin, Chen-Te Chou, Ping-Yi Lin, Su-Han Wang, Yao-Li Chen
Here, we present 2 patients who developed central pontine myelinolysis after living-donor liver transplant. Both patients had abnormal sodium level before living-donor liver transplant. Patient 1 presented with severe hyponatremia on admission. After administration of 3% saline, her sodium level during the first 24 hours was kept at 100 mEq/L and then increased to 116 mEq/L during the next 24 hours. The level increased 5.8 mEq/L during the 4- to 5-hour transplant procedure. Patient 2 was admitted to the hospital with an unprovoked seizure...
November 15, 2017: Experimental and Clinical Transplantation
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