Hypovolemia

01/01/2014 - "From baseline to hypovolemia T1, there was a significant reduction in mean ± SD oxygen delivery index (619 ± 257 mL/min/m(2) to 205 ± 76 mL/min/m(2)) and Sto2 (94 ± 4.4% to 78 ± 12.2%). "
08/01/1995 - "The data show that there is less clearance of 99mTc-LEH from the bloodstream by the reticuloendothelial system after a 50% hypovolemic exchange transfusion, thus supporting the possible use of LEH as an oxygen-carrying resuscitative fluid in situations of severe blood loss."
01/01/2013 - "Central Venous-to-Arterial CO2 Gap Is a Useful Parameter in Monitoring Hypovolemia-Caused Altered Oxygen Balance: Animal Study."
11/01/2011 - "The objective of the present study was to test the hypothesis that controlled, adequately compensated, central hypovolemia in subjects with intact autoregulation would be associated with decreased peripheral microcirculatory diffusion and convection properties and, consequently, decreased tissue oxygen carrying capacity and tissue oxygenation. "
12/27/2022 - "Proportions of serious complications in Groups I and II are respectively 10% and 32% and Boschloo's test rejects the null of equality of proportions against the alternative hypothesis of lower proportion of occurrence in Group I than in Group II. Hypovolemia can lead to vasoconstriction and inadequate perfusion with decreased oxygen delivery to organs and peripheral tissues and ultimately cause organ dysfunction. "

04/01/1992 - "Further studies are necessary to investigate the effects of hypertonic NaCl solution in horses with a disturbed fluid balance (hypovolemia)."
04/01/2013 - "So during the application of Tetraspan, our attention was focused on its isoionic structure, that excludes negative influence on kidneys and is the unique balanced solution for hypovolemia elimination. "
11/01/2003 - "Hypovolemia stimulates intraoral intake of water and NaCl solution in intact rats but not in chronic decerebrate rats."
05/01/2002 - "Hypertonic/hyperoncotic solution in hypovolemic patients: experience in the emergency room."
02/01/1997 - "Prognostic factors to predict outcome following the administration of hypertonic/hyperoncotic solution in hypovolemic patients."

01/01/2023 - "The electrolyte group did not have any workers start the work shift with an IJV collapsibility index ≥39%; however, at the postshift assessment, 15% (2/13) were hypovolemic. "
01/01/2020 - "Correcting fluid and electrolyte imbalance is an initial crucial step to mitigate severe hypovolemia. "
11/01/2012 - "The remaining three patients had a predicted mortality of 14.6% (±13.3) based on Euroscore calculation, and were cooled for 17.6±4.0 hours after CA. Coagulopathy, hypovolemia, severe electrolyte abnormalities, and re-warming dysrhythmias were not identified in any patient. "
09/01/2010 - "A tight control is then necessary to prevent hypovolemia and electrolytes disorders. "
02/01/2007 - "The emergency clinician should maintain a high clinical suspicion for hypoadrenocorticism, as early recognition and rapid treatment of hypovolemia and electrolyte abnormalities can be lifesaving. "

11/01/2023 - "Management to correct sodium concentration is based on whether the patient is hypovolemic, euvolemic, or hypervolemic. "
10/01/2015 - "The results suggest that water and sodium ingestion in response to hypovolemic/hypotensive stimuli are disturbed in nephrotic rats, and provide evidence that the disordered behaviors reflect disturbances of the peripheral renin-angiotensin-aldosterone system."
01/01/2013 - "When arterial underfilling occurs, the mechanisms are activated (sodium and water retention) - associated with low central venous oxygen saturation (ScvO2) if underfilling is caused by low flow/hypovolemia, or with normal/high ScvO2 if associated with high flow/hypervolemia. "
11/01/2007 - "The hyperdynamic circulation is most likely initiated by arterial vasodilatation, leading to central hypovolemia, sodium retention, and an increased intravascular volume. "
03/01/2007 - "The HSD2 neurons were, however, activated by prolonged hypovolemia, which also stimulated sodium appetite. "

04/01/2022 - "This experimental study evaluated the pharmacokinetics of epinephrine and/or incidence of ROSC after TIO administration in either a normovolemic or hypovolemic pediatric swine model. "
01/01/2020 - "Aims of the study were to determine the effects of humerus intraosseous (HIO) versus intravenous (IV) administration of epinephrine in a hypovolemic, pediatric pig model. "
04/01/2022 - "Although the maximum concentration of plasma epinephrine was similar, the TIO hypovolemia group exhibited significantly slower time to maximum concentration times versus TIO normovolemia subjects (P = 0.004). "
04/01/2022 - "The TIO hypovolemia group exhibited significantly lower plasma epinephrine concentrations versus IV hypovolemia at 60, 90, 120, and 150 seconds (P < 0.05). "
04/01/2018 - "Humerus intraosseous administration of epinephrine in normovolemic and hypovolemic porcine model."

09/01/2014 - "The use of colloids remains controversial; however, current evidence suggests they can be beneficial in intraoperative patients with objective evidence of hypovolemia. "
01/01/2006 - "The efficacy of using colloids and crystalloids in the treatment of hypovolemia still remains controversial. "
01/01/2017 - "We considered randomized trials and meta-analyses as well as narrative reviews evaluating the effects of colloids or crystalloids in patients with hypovolemia or as maintenance fluids published in the PubMed and Cochrane databases. "
12/01/2016 - "This was a single-centre ancillary PK study of a large multinational trial of crystalloids versus colloids for acute hypovolemia in intensive care unit (ICU) patients. "
04/01/2018 - "Suspecting a hypovolemic origin, we performed a solid fluid replacement with colloids. "

04/01/2018 - "Hypovolemic groups received 500 mL of 5 percent albumin following blood sampling. "
04/01/2013 - "Hence, using albumin infusion in them would not only fail to improve relative hypovolemia, but also would deleteriously promote extravascular accumulation of fluid, which might impair the functions of many vital organs. "
12/01/2007 - "The loss of plasma volume by noradrenalin under hypovolemia was 3.5+/-3.0 ml/kg. The remaining increase in plasma volume after the albumin and noradrenalin treatment under normal permeability was 13.7+/-3.4 ml/kg. Increase in blood pressure by noradrenalin induces loss of plasma volume, which is much greater under increased than under normal permeability and less pronounced in hypovolemia. "
04/01/1998 - "Practical points in the use of albumin for hypovolemia."
09/01/1993 - "The use of Albumin solutions as a homologous agent is sufficient in diseases corresponding to hypovolemia because of its long half-time, water binding capacity and rare side-effects. "

04/01/2014 - "Results of recent clinical published trials highlight the need for minimizing fluid administration and attempting to use diuretics to achieve a negative fluid, although hypovolemia and hypoperfusion should be carefully considered. "
01/01/2023 - "They also confirmed the unique diuretic mode of action of SGLT2i, promoting osmotic diuresis, and its potential adverse events secondary to hypovolemia and hematocrit increase. "
01/01/2021 - "Concomitant use of diuretics and the presence of signs of hypovolemia were not associated with an increased risk of LLA. "
01/01/2021 - "Concomitant diuretic use and the presence of signs of hypovolemia were determined to assess the potential underlying mechanism. "
07/14/2019 - "We suggest a "diuretic window hypothesis", composed by an open window in hypervolemic phase, an attention window when patient present in a normal plasma volume phase, and a closed window during the plasma hypovolemic phase."

01/01/2022 - "We recommend close monitoring of natriuresis in such patients and - if needed - administration of intravenous isotonic saline (0.9% NaCl) to prevent hypovolemia."
06/28/2020 - "Initial history and physical examination suggested hypovolemia, and he was treated with normal saline at 100 mL/hour. "
01/01/2007 - "These adverse events are mild and easily resolved with standard measures for hypovolemia, as plasma expander or normal saline infusions. "
04/01/1990 - "The hypovolemic patients increased their urine output from 17 +/- 2 ml/h to greater than 0.5 ml.kg-1.h-1 following a 500-ml bolus of normal saline. "
11/01/1984 - "Correcting the hypovolemia with N saline solution had no effect; the renal blood flow continued to decrease (p less than 0.05). "

07/01/2017 - "Polygeline improved hemodynamic stability in patients with hypovolemia due to traumatic injury. "
01/01/2016 - "Polygeline in hypovolemia due to traumatic injury: Results of an open label study in Indian population."
07/01/2017 - "This retrospective study examined the effectiveness and safety of polygeline in adult patients with hypovolemia due to traumatic injury. "
01/01/2016 - "Evaluation of efficacy and safety of polygeline in adult patients with hypovolemia. "
01/01/2016 - "In an open label, non-comparative study intravenous infusion of polygeline was administered to adult patients with hypovolemia following traumatic injury. "

01/01/2021 - "This study: a) developed a global model incorporating ECG, SCG and RPPG features for estimating individual-specific decompensation from progressive relative and absolute hypovolemia and resuscitation; b) demonstrated SCG as the most important modality to predict decompensation; c) demonstrated efficacy of random forest models trained on different data subsets; and d) demonstrated adding training data from two discrete forms of hypovolemia increases prediction accuracy for the other form of hypovolemia and resuscitation."
06/01/1989 - "Physician recognition of these concepts can result in improved resuscitation of hypovolemic patients."
11/08/2023 - "The purpose of this porcine study was to investigate the ability of NIRS monitoring to detect changes in regional cerebral and regional renal perfusion during hypovolemia, resuscitation by volume infusion, and vasoconstriction. "
01/01/2023 - "This study assessed the autoregulation of the stomach, liver, kidney and skeletal muscle, under baseline, hypovolemic, and post-fluid-resuscitation conditions using near-infrared spectroscopy (NIRS). "
02/01/2022 - "Spontaneously breathing patients who required fluid resuscitation due to hypovolemia were included in the study. "

10/08/2023 - "Hyperchloremia may be mistaken for hypovolemia and may interfere with volume therapy in pediatric patients. "
01/01/2023 - "In fact, the majority of treated euvolemic patients received incorrect therapy with isotonic saline (37/41, 90.2%), whereas hypovolemics did not (p=0.001). "
01/01/2022 - "Compared with standard therapy, GDT reduced the duration of intraoperative hypovolemia (mean difference 37.6 [95% confidence interval, 6.2-37.4] min, P=0.006) and low cardiac index (mean difference 30.7 [95% confidence interval, 9.5-56.9] min, P=0.035). "
10/01/2015 - "In the absence of hypovolemia, excessive administration of fluid boluses is inappropriate therapy. "
01/01/2015 - "Surgical clipping is associated with higher cardiac output and hypovolemia in the early postoperative stage and poorer preload responsiveness to volume therapy during the vasospasm risk period compared with endovascular coiling."

04/01/2014 - "Accurate assessment of blood volume (BV) may be helpful for prescribing hemodialysis (HD) and for reducing complications related to hypovolemia and volume overload. "
04/01/2004 - "Model-based study of the effects of the hemodialysis technique on the compensatory response to hypovolemia."
11/01/2023 - "The pathogenesis of IDH has been attributed to the rapid reduction of plasma volume during hemodialysis and the inadequate compensatory mechanisms in response to hypovolemia, such as the lack of vasoconstriction. "
07/09/2022 - "Cardiovascular regulatory mechanisms that fail to compensate for ultrafiltration and cause hypovolemia during hemodialysis (HD) are not completely understood. "
01/01/2022 - "A better understanding of how the factors examined here cause hypovolemia can be the basis for one to modify the hemodialysis process such that the development of hypovolemia can be avoided over the course of hemodialysis."

01/01/2007 - "The intrathoracic pressure regulator (ITPR) plus positive pressure ventilation (PPV) has been shown to improve coronary and cerebral perfusion pressures during hypovolemia by improving mean arterial blood pressure and by decreasing right atrial and intracranial pressures. "
10/01/2016 - "This study was designed to assess internal carotid artery blood flow (ICA-BF) during simulated hypovolemia and noninvasive positive pressure ventilation (PPV) in young healthy humans. "
12/01/2021 - "Simultaneous measurements of COEPBF and COTPTD were performed before incision at baseline and before and after increased (+10 cmH2O) positive end-expiratory pressure (PEEP), activation of epidural anaesthesia and intra-operative events of hypovolemia and low CO. "
11/25/2021 - "Effect of increased positive end-expiratory pressure on intracranial pressure and cerebral oxygenation: impact of respiratory mechanics and hypovolemia."
01/01/2020 - "We explored heart rate variability, baroreflex activity, and their interaction in an experimental protocol involving twelve mildly hypovolemic healthy subjects during spontaneous breathing and noninvasive positive-pressure ventilation. "

01/01/2017 - "By the end of the first day we observed pronounced hemodilution, decreased blood oxygenation, blood flow restructuring with its acceleration above 1 ml/s, violation of tissue oxygenation, signs of hypovolemia. "
02/01/2016 - "Mean hematocrit values after hemodilution were 27.80 ± 0.04 percent for the acute normovolemic hemodilution group and 27.01 ± 0.03 percent for the acute hypovolemic hemodilution group. "
02/01/2016 - "Sixty-three female Wistar rats were divided into three groups of 21 rats each: group 1, superficial inferior epigastric artery flap, which was elevated bilaterally and transposed back to the abdominal wall with different angles of rotation (i.e., 90, 180, 270, and 360 degrees); group 2, surgery with previous acute normovolemic hemodilution; and group 3, surgery with previous acute hypovolemic hemodilution. "
11/01/2007 - "Our results suggest that, although steady-state CBF velocity changes under both central hypervolemia and hypovolemia, only hypervolemic hemodilution impairs dynamic cerebral autoregulation."
11/01/2007 - "We evaluated dynamic cerebral autoregulation during central hypovolemia and central hypervolemia with hemodilution using spectral and transfer function analysis between mean arterial blood pressure (MBP) and cerebral blood flow (CBF) velocity variability in 12 individuals. "