RESUMEN
This study investigated fluid removal strategies for critically ill patients with fluid overload on mechanical ventilation. Traditionally, a negative fluid balance (FB) is aimed for. However, this approach can have drawbacks. Here, we compared a new approach, namely removing fluids until patients become fluid responsive (FR) to the traditional empiric negative balance approach. Twelve patients were placed in each group (n = 24). FR assessment was performed using passive leg raising (PLR). Both groups maintained stable blood pressure and heart function during fluid management. Notably, the FR group weaned from the ventilator significantly faster than negative FB group (both for a spontaneous breathing trial (14 h vs. 36 h, p = 0.031) and extubation (26 h vs. 57 h, p = 0.007); the difference in total ventilator time wasn't statistically significant (49 h vs. 62 h, p = 0.065). Additionally, FR group avoided metabolic problems like secondary alkalosis and potential hypokalemia seen in the negative FB group. FR-guided fluid-removal in fluid overloaded mechanically ventilated patients was a feasible, safe, and maybe superior strategy in facilitating weaning and disconnection from mechanical ventilation than negative FB-driven fluid removal. FR is a safe endpoint for optimizing cardiac function and preventing adverse consequences during fluid removal.
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Enfermedad Crítica , Fluidoterapia , Respiración Artificial , Desconexión del Ventilador , Humanos , Respiración Artificial/métodos , Masculino , Fluidoterapia/métodos , Femenino , Persona de Mediana Edad , Desconexión del Ventilador/métodos , Anciano , Equilibrio HidroelectrolíticoRESUMEN
Dehydration and malnutrition are common in infants with severe epidermolysis bullosa (EB), but their nutritional needs have been poorly studied. The principal aim was to assess the nutritional status, fluid and electrolyte balance, and nutritional intake of newborns with EB during the first month of life and estimate their needs during this period. This was a retrospective study over an eight-year period. Inclusion criteria were neonates with confirmed EB admitted to our neonatal referral unit during the first month of life. Exclusion criteria were hospitalisations <7 days. Twenty-seven patients with EB (mean [min-max] gestational age = 39 weeks [33; 41]; birth weight = 2986 g [1982; 4150]), were included. Four patients (15%) had hyponatraemia < 135 mmol/L at admission (age at admission = 4.8 days +/- 2.6 [2; 7]). Sixteen patients (59%) had a sodium deficit -requiring fluid and sodium intake well above recommendations from the World Health Organisation (WHO). The risk of hyponatraemia was significantly higher in infants with the greatest body surface area affected but did not appear to be related to EB subtype. Caloric and protein intake were well above the WHO's recommendations, preventing acquired growth restriction. The rate of sodium deficit in neonates with EB is high and related to the significance of skin exudate. The administration of nutrient intake greater than that recommended helps to prevent acquired growth restriction. We propose recommendations for nutritional intake and monitoring in neonates with EB in the first month of life.
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Epidermólisis Ampollosa , Equilibrio Hidroelectrolítico , Humanos , Estudios Retrospectivos , Recién Nacido , Epidermólisis Ampollosa/complicaciones , Epidermólisis Ampollosa/terapia , Femenino , Masculino , Estado Nutricional , Hiponatremia/etiología , Necesidades Nutricionales , Lactante , Deshidratación/etiologíaRESUMEN
This article provides a comprehensive overview of electrolyte and water homeostasis in pediatric patients, focusing on some of the common serum electrolyte abnormalities encountered in clinical practice. Understanding pathophysiology, taking a detailed history, performing comprehensive physical examinations, and ordering basic laboratory investigations are essential for the timely proper management of these conditions. We will discuss the pathophysiology, clinical manifestations, diagnostic approaches, and treatment strategies for each electrolyte disorder. This article aims to enhance the clinical approach to pediatric patients with electrolyte imbalance-related emergencies, ultimately improving patient outcomes.Trial registration This manuscript does not include a clinical trial; instead, it provides an updated review of literature.
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Urgencias Médicas , Desequilibrio Hidroelectrolítico , Humanos , Desequilibrio Hidroelectrolítico/terapia , Niño , Hiponatremia/terapia , Hiponatremia/etiología , Hiponatremia/diagnóstico , Hipopotasemia/terapia , Hipopotasemia/diagnóstico , Hipopotasemia/sangre , Hipopotasemia/etiología , Hiperpotasemia/terapia , Hiperpotasemia/diagnóstico , Hiperpotasemia/sangre , Hiperpotasemia/etiología , Hipernatremia/terapia , Hipernatremia/diagnóstico , Hipernatremia/etiología , Hipernatremia/fisiopatología , Hipercalcemia/terapia , Hipercalcemia/sangre , Hipercalcemia/diagnóstico , Hipercalcemia/etiología , Hipocalcemia/diagnóstico , Hipocalcemia/etiología , Hipocalcemia/terapia , Electrólitos/sangre , Desequilibrio Ácido-Base/diagnóstico , Desequilibrio Ácido-Base/terapia , Desequilibrio Ácido-Base/fisiopatología , Equilibrio Hidroelectrolítico/fisiología , Acidosis/diagnóstico , Acidosis/sangre , Acidosis/terapiaRESUMEN
The prostaglandin E2 (PGE2) receptor EP3 has been detected in the thick ascending limb (TAL) and the collecting duct of the kidney, where its actions are proposed to inhibit water reabsorption. However, EP3 is also expressed in other cell types, including vascular endothelial cells. The aim here was to determine the contribution of EP3 in renal water handling in male and female adult mice by phenotyping a novel mouse model with doxycycline-dependent deletion of EP3 throughout the kidney tubule (EP3-/- mice). RNAscope demonstrated that EP3 was highly expressed in the cortical and medullary TAL of adult mice. Compared with controls EP3 mRNA expression was reduced by >80% in whole kidney (RT-qPCR) and nondetectable (RNAscope) in renal tubules of EP3-/- mice. Under basal conditions, there were no significant differences in control and EP3-/- mice of both sexes in food and water intake, body weight, urinary output, or clinical biochemistries. No differences were detectable between genotypes in handling of an acute water load or in their response to the vasopressin analog 1-deamino-8-d-arginine-vasopressin (dDAVP). No differences in water handling were observed when PGE2 production was enhanced using 1% NaCl load. Expression of proteins involved in kidney water handling was not different between genotypes. This study demonstrates that renal tubular EP3 is not essential for body fluid homeostasis in males or females, even when PGE2 levels are high. The mouse model is a novel tool for examining the role of EP3 in kidney function independently of potential developmental abnormalities or systemic effects.NEW & NOTEWORTHY The prostanoid EP3 receptor is proposed to play a key role in the kidney tubule and antagonize the effects of vasopressin on aquaporin-mediated water reabsorption. Here, we phenotyped a kidney tubule-specific inducible knockout mouse model of the EP3 receptor. Our major finding is that, even under physiological stress, tubular EP3 plays no detectable role in renal water or solute handling. This suggests that other EP receptors must be important for renal salt and water handling.
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Túbulos Renales , Ratones Noqueados , Subtipo EP3 de Receptores de Prostaglandina E , Animales , Subtipo EP3 de Receptores de Prostaglandina E/metabolismo , Subtipo EP3 de Receptores de Prostaglandina E/genética , Femenino , Masculino , Túbulos Renales/metabolismo , Homeostasis , Ratones , Equilibrio Hidroelectrolítico , Ratones Endogámicos C57BL , Fenotipo , Factores Sexuales , Eliminación de Gen , Dinoprostona/metabolismoRESUMEN
BACKGROUND: Oral cancer is a serious health issue in both the developing and developed worlds, and it is one of the most common forms of cancer of the head and neck. In accordance with the 2017 World Health Organization classification, oral cancer can affect any part of the mouth, including the buccal mucosa, the front two-thirds of the tongue, the lip, the palate, the vestibule, the alveolus, the floor of the mouth, and the gingivae. Hematology and electrolyte balance have been proposed as tumor indicators and paths into cancer's genesis. Examining the patient's blood count and electrolyte levels in order to better understand their oral cancer. METHODS: Electrolyte abnormalities are common in cancer patients and may be caused by the disease itself or by treatment. Hyponatremia is the most frequent electrolyte problem in cancer patients, and it is typically caused by the syndrome of improper ADH secretion. Although electrolyte problems are associated with a worse prognosis for cancer patients, timely and effective therapy has the potential to enhance both short- and long-term results and quality of life. Hematological tests on patients with oral cancer, including differential cell count, white blood cell count, and hemoglobin level. RESULTS: Compared to healthy controls, oral cancer patients show statistically significant differences in a number of biochemical parameters, including electrolytes (sodium, P<0.05; potassium, P=0.89; chloride, P<0.05); differential count (neutrophils, P<0.05; basophils, P<0.05). A significant risk factor for cancer patients is an electrolyte imbalance, which has been linked to inappropriate anti-diabetic hormone release. CONCLUSIONS: Clinicians will find these shifts in electrolytic level helpful in diagnosing and tracking oral cancer. Potentially malignant oral disorders and Oral squamous cell carcinoma may be better predicted using a combination of TLC, neutrophil, and lymphocyte counts, as shown in this study.
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Neoplasias de la Boca , Humanos , Neoplasias de la Boca/sangre , Masculino , Femenino , Persona de Mediana Edad , Equilibrio Hidroelectrolítico/fisiología , Electrólitos/sangre , Electrólitos/metabolismo , Anciano , AdultoRESUMEN
BACKGROUND: POINCARE-2 trial aimed to assess the effectiveness of a strategy designed to tackle fluid overload through daily weighing and subsequent administration of treatments in critically ill patients. Even in highly standardized care settings, such as intensive care units, effectiveness of such a complex intervention depends on its actual efficacy but also on the extent of its implementation. Using a process evaluation, we aimed to provide understanding of the implementation, context, and mechanisms of change of POINCARE-2 strategy during the trial, to gain insight on its effectiveness and inform the decision regarding the dissemination of the intervention. METHODS: We conducted a mixed-method process evaluation following the Medical Research Council guideline. Both quantitative data derived from the trial, and qualitative data from semi-structured interviews with professionals were used to explain implementation, mechanisms of change of the POINCARE-2 strategy, as well as contextual factors potentially influencing implementation of the strategy. RESULTS: Score of actual exposure to the strategy ranged from 29.1 to 68.2% during the control period, and from 61.9 to 92.3% during the intervention period, suggesting both potential contamination and suboptimal fidelity to the strategy. Lack of appropriate weighing devices, lack of human resources dedicated to research, pre-trial rooted prescription habits, and anticipated knowledge of the strategy have been identified as the main barriers to optimal implementation of the strategy in the trial context. CONCLUSIONS: Both contamination and suboptimal fidelity to POINCARE-2 strategy raised concerns about a potential bias towards the null of intention-to-treat (ITT) analyses. However, optimal fidelity seemed reachable. Consequently, a clinical strategy should not be rejected solely on the basis of the negativity of ITT analyses' results. Our findings showed that, even in highly standardized care conditions, the implementation of clinical strategies may be hindered by numerous contextual factors, which demonstrates the critical importance of assessing the viability of an intervention, prior to any evaluation of its effectiveness. TRIAL REGISTRATION: Number NCT02765009.
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Enfermedad Crítica , Fluidoterapia , Equilibrio Hidroelectrolítico , Humanos , Enfermedad Crítica/terapia , Fluidoterapia/métodos , Fluidoterapia/normas , Equilibrio Hidroelectrolítico/fisiología , Unidades de Cuidados Intensivos , Cuidados Críticos/métodos , Evaluación de Procesos, Atención de Salud/métodos , Femenino , MasculinoRESUMEN
BACKGROUND: Ensuring adequate hydration is critical for breastfeeding women, yet their water consumption patterns and hydration status is poorly understood. This study investigates the water consumption patterns and estimated water balance among women, practicing exclusive, mixed, and no breastfeeding methods. METHODS: 529 healthy women completed the Nursing Water Balanced Questionnaire (N-WBQ). Participants were distributed across breastfeeding groups as follows: exclusive (39.7%), mixed (31.9%), and no breastfeeding (28.4%). RESULTS: Significant differences were noted in water consumption patterns among breastfeeding groups regarding intake from beverages (p < 0.001), juices (p = 0.019), coffee (p < 0.001), and milk (p = 0.015). Water intake from liquids, except for drinking water (p < 0.001), juices (p = 0.024) and coffee (p < 0.001) differed significantly among groups in women with adequate total water intake based on recommendation, with exclusive breastfeeding mothers prioritizing plain water over other beverages. Total water loss (p < 0.001) and estimated water balance (p < 0.001) significantly varied among breastfeeding groups, with exclusive breastfeeding mothers to exhibit the lowest water balance (-475.36 mL/day), indicating potential dehydration risk. Apart from plain water, water from foods, coffee and milk significantly contributed to positive water balance. CONCLUSIONS: Our findings highlight a risk of dehydration in this population, while water consumption patterns are influenced by breastfeeding method, likely affected by varying lactational demands and lifestyle factors. Further research to develop more accurate and individualized methods for assessing water balance in breastfeeding women is needed.
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Lactancia Materna , Ingestión de Líquidos , Humanos , Femenino , Adulto , Ingestión de Líquidos/fisiología , Equilibrio Hidroelectrolítico , Encuestas y Cuestionarios , Adulto Joven , Deshidratación , Agua , Bebidas , Estado Nutricional , MadresRESUMEN
In the present study, we examined the inter-relationships between body water balance, nutritional risk, sarcopenia, and outcome after acute ischemic stroke (AIS) in patients who were living independently. We defined abnormal body water balance as overhydration, with an extracellular fluid/total body water ratio > 0.390. A geriatric nutritional risk index (GNRI) < 98 was considered low GNRI. Sarcopenia was defined according to the 2019 Asian Working Group for sarcopenia criteria. Poor outcome was defined as a modified Rankin scale (mRS) score ≥ 3 at discharge. Among 111 eligible patients (40 females, median age: 77 years), 43 had a poor prognosis, 31 exhibited overhydration, 25 had low GNRI, and 44 experienced sarcopenia. Patients with poor outcomes had significantly higher National Institutes of Health Stroke Scale (NIHSS) scores, which were significantly more common with overhydration, low GNRI, and sarcopenia (p < 0.001 for all). Concomitant overhydration, low GNRI, and sarcopenia were associated with poorer outcomes. In multivariate analysis, overhydration [odds ratio (OR) 5.504, 95% confidence interval (CI) 1.717-17.648; p = 0.004], age (OR 1.062, 95%CI 1.010-1.117; p = 0.020), and NIHSS score (OR 1.790, 95%CI 1.307-2.451; p < 0.001) were independent prognostic factors for poor outcome. The results indicated that the combination of overhydration, low GNRI, and sarcopenia predict poor outcomes following AIS. Overhydration was particularly associated with poor outcomes.
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Accidente Cerebrovascular Isquémico , Estado Nutricional , Sarcopenia , Equilibrio Hidroelectrolítico , Humanos , Femenino , Masculino , Anciano , Estudios Prospectivos , Accidente Cerebrovascular Isquémico/complicaciones , Anciano de 80 o más Años , Factores de Riesgo , Pronóstico , Evaluación Geriátrica/métodos , Persona de Mediana Edad , Agua Corporal/metabolismo , Evaluación NutricionalRESUMEN
Despite decades of literature on (de)hydration in healthy individuals, many unanswered questions remain. To outline research and policy priorities, it is fundamental to recognize the literature trends on (de)hydration and identify current research gaps, which herein we aimed to pinpoint. From a representative sample of 180 (de)hydration studies with 4350 individuals, we found that research is mainly limited to small-scale laboratory-based sample sizes, with high variability in demographics (sex, age, and level of competition); to non-ecological (highly simulated and controlled) conditions; and with a focus on recreationally active male adults (e.g., Tier 1, non-athletes). The laboratory-simulated environments are limiting factors underpinning the need to better translate scientific research into field studies. Although, consistently, dehydration is defined as the loss of 2% of body weight, the hydration status is estimated using a very heterogeneous range of parameters. Water is the most researched hydration fluid, followed by alcoholic beverages with added carbohydrates (CHO). The current research still overlooks beverages supplemented with proteins, amino acids (AA), and glycerol. Future research should invest more effort in "real-world" studies with larger and more heterogeneous cohorts, exploring the entire available spectrum of fluids while addressing hydration outcomes more harmoniously.
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Deshidratación , Humanos , Deshidratación/prevención & control , Masculino , Femenino , Adulto , Equilibrio Hidroelectrolítico , Ingestión de Líquidos/fisiologíaRESUMEN
The association of hydration knowledge and health habits with hydration status and fluid intake is rarely examined. We sought to determine whether knowledge or physical health behaviors predict physiological hydration status and fluid intake. Ninety-six participants (59 female; 27 ± 10 year) completed the previously validated hydration survey. Participants then recorded total fluids consumed (TFC), collected urine, and tracked void frequency for 24 h. Hydration status was assessed via 24 h urine specific gravity (USG) and osmolality (Uosm). Health behaviors included self-reported physical activity, BMI, smoking, alcoholic drinking, and sleep status. TFC was significantly correlated with 24 h USG (r = -0.390; p < 0.001), Uosm (r = -0.486; p < 0.001), total urine volume (r = 0.675; p < 0.001), and void frequency (r = 0.518; p < 0.001). Hydration knowledge was not correlated with 24 h USG (r = 0.085; p = 0.420), Uosm (r = 0.087; p = 0.419), urine total volume (r = 0.019; p = 0.857), void frequency (r = 0.030; p = 0.771), or TFC (r = 0.027; p = 0.813). Hydration knowledge did not predict 24 h USG (LR+ = 1.10; LR- = 0.90), Uosm (LR+ = 0.81; LR- = 1.35), or TFC (LR+ = 1.00; LR- = 1.00). Health habits did not predict 24 h USG, Uosm, or TFC. In conclusion, self-reported 24 h diet and fluid log recording is comparable to hydration status verification via 24 h urine collection. Hydration knowledge and health habits are not related to, or predictive of, hydration status.
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Ingestión de Líquidos , Conductas Relacionadas con la Salud , Conocimientos, Actitudes y Práctica en Salud , Estado de Hidratación del Organismo , Humanos , Femenino , Masculino , Adulto , Ingestión de Líquidos/fisiología , Estado de Hidratación del Organismo/fisiología , Adulto Joven , Gravedad Específica , Deshidratación/orina , Deshidratación/fisiopatología , Concentración Osmolar , Encuestas y Cuestionarios , Ejercicio Físico/fisiología , Equilibrio Hidroelectrolítico/fisiología , AutoinformeRESUMEN
BACKGROUND: Since many acutely admitted older adults display signs of dehydration, treatment using balanced crystalloids is an important part of medical care. Additionally, many of these patients suffer from chronic malnutrition. We speculated that the early addition of glucose might ameliorate the hospital-related drop of caloric intake and modify their catabolic status. METHODS: We included patients 78 years and older, admitted acutely for non-traumatic illnesses. The patients were randomized into either receiving balanced crystalloid (PlasmaLyte; group P) or balanced crystalloid enriched with 100 g of glucose per liter (group G). The information about fluid balance and levels of minerals were collected longitudinally. RESULTS: In the G group, a significantly higher proportion of patients developed signs of refeeding syndrome, i.e., drops in phosphates, potassium and/or magnesium when compared to group P (83.3 vs. 16.7%, p < 0.01). The drop in phosphate levels was the most pronounced. The urinalysis showed no differences in the levels of these minerals in the urine, suggesting their uptake into the cells. There were no differences in the in-hospital mortality or in the 1-year mortality. CONCLUSION: The short-term administration of balanced crystalloids with glucose induced an anabolic shift of electrolytes in acutely admitted older adults.
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Fluidoterapia , Glucosa , Humanos , Anciano , Femenino , Masculino , Anciano de 80 o más Años , Fluidoterapia/métodos , Glucosa/metabolismo , Glucosa/administración & dosificación , Soluciones Cristaloides/administración & dosificación , Equilibrio Hidroelectrolítico , Síndrome de Realimentación/prevención & control , Suplementos Dietéticos , Deshidratación/terapia , Mortalidad HospitalariaRESUMEN
BACKGROUND: Maintaining adequate hydration is critical to optimal health, well-being, and performance. Those who are physically active in stressful environments, such as warm and/or humid scenarios, may be at particular risk for dehydration with ensuing loss of electrolytes, leading to sluggishness and impaired physical performance. METHODS: We evaluated an electrolyte and amino acid product containing L-alanine and L-glutamine, as well as select vitamins [B3 (niacin), B5 (pantothenic acid), B6 (pyridoxine), B12 (cobalamin), and vitamin C (ascorbic acid)]. Subjects (n = 40; four groups, n = 10) were randomized to consume either a placebo packet or one, two, or three packets daily of the test product for 4 weeks with site visits at 0, 2, and 4 weeks. We tested safety and tolerability by analyzing hematological parameters (complete blood counts), metabolic parameters (hepatic, renal, acid-base balance), urinalysis end products, thyroid status [T3 (triiodothyronine), T4 (thyroxine), TSH (thyroid-stimulating hormone)], tolerability (via questionnaire), vital signs, and dietary intake. RESULTS: Statistical analyses displayed ten significant main effects (p < 0.05) with white blood cells, lymphocytes, neutrophils, urinary pH, thyroxine, urination frequency, calcium, calories, fat, and cholesterol. Interactions for time and group (p < 0.05) were observed for MCV, eGFR, potassium, overall tolerability, bloating, and cramping-demonstrating mild GA disturbances. Little to no change of physiological relevance was noted for any outcome variable, regardless of dosing level. CONCLUSIONS: Our results indicate the product was well-tolerated at all dosing levels and no significant adverse changes occurred in any of the test parameters compared to the placebo group, indicating relative safety of ingestion over a 4-week treatment period, at the volumes used, and outside the context of physical stress.
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Aminoácidos , Humanos , Femenino , Masculino , Adulto , Aminoácidos/sangre , Bebidas , Adulto Joven , Deshidratación , Método Doble Ciego , Persona de Mediana Edad , Electrólitos , Vitaminas/administración & dosificación , Equilibrio Hidroelectrolítico/efectos de los fármacosRESUMEN
Postexercise hydration is fundamental to replace fluid loss from sweat. This study evaluated rehydration and gastrointestinal (GI) symptoms for each of three beverages: water (W), sports drink (SD), and skimmed, lactose-free milk (SLM) after moderate-intensity cycling in the heat. Sixteen college students completed three exercise sessions each to lose ≈2% of their body mass. They drank 150% of body mass loss of the drink assigned in randomized order; net fluid balance, diuresis, and GI symptoms were measured and followed up for 3 hr after completion of fluid intake. SLM showed higher fluid retention (â¼69%) versus W (â¼40%; p < .001); SD (â¼56%) was not different from SLM or W (p > .05). Net fluid balance was higher for SLM (-0.26 kg) and SD (-0.42 kg) than W (-0.67 kg) after 3 hr (p < .001), resulting from a significantly lower diuresis with SLM. Reported GI disturbances were mild and showed no difference among drinks (p > .05) despite ingestion of W (1,992 ± 425 ml), SD (1,999 ± 429 ml), and SLM (1,993 ± 426 ml) in 90 min. In conclusion, SLM was more effective than W for postexercise rehydration, showing greater fluid retention for the 3-hr follow-up and presenting with low-intensity GI symptoms similar to those with W and SD. These results confirm that SLM is an effective option for hydration after exercise in the heat.
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Bebidas , Ejercicio Físico , Fluidoterapia , Enfermedades Gastrointestinales , Leche , Equilibrio Hidroelectrolítico , Humanos , Masculino , Adulto Joven , Femenino , Fluidoterapia/métodos , Ejercicio Físico/fisiología , Animales , Lactosa/análisis , Adulto , Deshidratación , Agua/administración & dosificación , Estudios Cruzados , Ingestión de Líquidos , Ciclismo/fisiología , Diuresis , Calor , Fenómenos Fisiológicos en la Nutrición DeportivaRESUMEN
OBJECTIVES: To explore the relationship between fluid balance and hemoglobin decline with secondary infarctions and neurologic outcome in aneurysmal subarachnoid hemorrhage (aSAH) patients. DESIGN: Secondary analysis of the Earlydrain trial, a prospective randomized controlled study investigating prophylactic lumbar drain use in aSAH patients. SETTING: Patients with aSAH treated in ICUs at 19 tertiary hospitals in Germany, Switzerland, and Canada. PATIENTS: From January 2011 to January 2016, 287 patients were enrolled in the Earlydrain trial. Only files with complete information on both daily hemoglobin and balance values were used, leaving 237 patients for analysis. INTERVENTIONS: Investigation of fluid balance management and hemoglobin levels during the initial 8 days post-aSAH to establish thresholds for unfavorable outcomes and assess their impact on secondary infarctions and 6-month neurologic outcome on the modified Rankin Scale (mRS). MEASUREMENTS AND MAIN RESULTS: Patients with unfavorable outcome after 6 months (mRS > 2) showed greater hemoglobin decline and increased cumulative fluid balance. A significant inverse relationship existed between fluid balance and hemoglobin decline. Thresholds for unfavorable outcome were 10.4 g/dL hemoglobin and 4894 mL cumulative fluid balance in the first 8 days. In multivariable analysis, fluid balance, but not fluid intake, remained significantly associated with unfavorable outcome, while the influence of hemoglobin lessened. Fluid balance but not hemoglobin related to secondary infarctions, with the effect being significant after inverse probability of treatment weighting. Transfusion was associated with unfavorable outcomes. CONCLUSIONS: Increased fluid balance influences hemoglobin decline through hemodilution. Fluid overload, rather than a slight decrease in hemoglobin levels, appears to be the primary factor contributing to poor outcomes in aSAH patients. The results suggest aiming for euvolemia and that a modest hemoglobin decline may be tolerated. It may be advisable to adopt a restrictive approach to transfusions, as they can potentially have a negative effect on outcome.
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Hemoglobinas , Hemorragia Subaracnoidea , Equilibrio Hidroelectrolítico , Humanos , Hemorragia Subaracnoidea/complicaciones , Hemorragia Subaracnoidea/terapia , Hemorragia Subaracnoidea/fisiopatología , Hemoglobinas/análisis , Hemoglobinas/metabolismo , Masculino , Femenino , Persona de Mediana Edad , Equilibrio Hidroelectrolítico/fisiología , Estudios Prospectivos , Anciano , Adulto , Unidades de Cuidados Intensivos , Drenaje/métodosRESUMEN
PURPOSE: During continuous renal replacement therapy (CRRT), a high net ultrafiltration rate (NUF) may worsen the decrease in urine output (UO) associated with starting CRRT. However, fluid balance (FB) may modulate this association. We aimed to examine the relationship between NUF, UO and FB at the start of CRRT. METHODS: A retrospective cohort study of 1030 CRRT-treated patients admitted to two tertiary ICUs. RESULTS: Median age was 60 years (IQR, 48-70), median APACHE III was 94 (IQR, 76-114) and median NUF rate was 0.7 mL/kg/h. In the 24 h after CRRT started, the mean hourly UO decreased from 25.5 mL to 11.9 mL (P < 0.001). Moreover, after adjusting for multiple confounders on multivariable analysis, a higher NUF was not significantly associated with a lower UO (-1.5 mL/kg for every 1 mL/kg/h increase in NUF; 95% CI -3.1 to 0.04; p = 0.064). In addition, pre-CRRT FB did not modulate the above relationship between higher NUF and lower UO. CONCLUSION: A higher NUF rate was not significantly associated with a greater immediate and sustained reduction in UO after CRRT commencement. FB before CRRT was also not associated with a greater reduction in UO. These findings do not provide evidence for an effect of NUF on renal function.
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Terapia de Reemplazo Renal Continuo , Equilibrio Hidroelectrolítico , Humanos , Persona de Mediana Edad , Masculino , Estudios Retrospectivos , Femenino , Terapia de Reemplazo Renal Continuo/métodos , Anciano , Unidades de Cuidados Intensivos , Ultrafiltración , Lesión Renal Aguda/terapia , Lesión Renal Aguda/fisiopatología , APACHE , Micción/fisiologíaRESUMEN
OBJECTIVE: The aim of the study is to study fluid balance and endothelial glycocalyx degradation, reflected by syndecan-1, and heparan sulfate (HS) levels, in early stages of acute pancreatitis (AP). MATERIALS AND METHODS: This study comprised of 210 AP patients (104 mild, 53 moderately severe, 17 severe). Blood was sampled within 72 hours from the onset of symptoms, and plasma syndecan-1 and HS levels were determined using ELISA. Fluid balance up to sampling and up to 4 days was determined retrospectively from medical records. RESULTS: Syndecan-1 levels predicted severe AP (SAP) in receiver operating characteristic analysis [area under curve 0.699, 95% confidence interval (CI) 0.546 to 0.851, P = 0.021]. Increasing AP severity was associated with higher intravenous fluid intake and lower urine output. In multivariate binary logistic regression analysis, positive fluid balance up to sampling [odds ratio (OR) 1.05 per 100 ml, 95% CI 1.02 to 1.11, P = 0.010] and higher Acute Physiology and Chronic Health Evaluation II score at sampling (OR 1.48, 95% CI 1.20 to 1.83, P < 0.001) were independently associated with severe AP, while syndecan-1 level was not. CONCLUSIONS: SAP is associated with high positive fluid balance in the early stages of treatment. Although increased in SAP, syndecan-1 was not independently associated with SAP when controlling for fluid balance and Acute Physiology and Chronic Health Evaluation II score.
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Heparitina Sulfato , Pancreatitis , Índice de Severidad de la Enfermedad , Sindecano-1 , Equilibrio Hidroelectrolítico , Humanos , Sindecano-1/sangre , Masculino , Pancreatitis/sangre , Pancreatitis/metabolismo , Femenino , Persona de Mediana Edad , Anciano , Adulto , Enfermedad Aguda , Heparitina Sulfato/sangre , Estudios Retrospectivos , Biomarcadores/sangre , Modelos Logísticos , Curva ROC , APACHE , Glicocálix/metabolismo , Ensayo de Inmunoadsorción Enzimática , Análisis MultivarianteRESUMEN
BACKGROUND: Previously identified phenotypes of acute respiratory distress syndrome (ARDS) could not reveal the dynamic change of phenotypes over time. We aimed to identify novel clinical phenotypes in ARDS using trajectories of fluid balance, to test whether phenotypes respond differently to different treatment, and to develop a simplified model for phenotype identification. METHODS: FACTT (conservative vs liberal fluid management) trial was classified as a development cohort, joint latent class mixed models (JLCMMs) were employed to identify trajectories of fluid balance. Heterogeneity of treatment effect (HTE) for fluid management strategy across phenotypes was investigated. We also constructed a parsimonious probabilistic model using baseline data to predict the fluid trajectories in the development cohort. The trajectory groups and the probabilistic model were externally validated in EDEN (initial trophic vs full enteral feeding) trial. RESULTS: Using JLCMM, we identified two trajectory groups in the development cohort: Class 1 (n = 758, 76.4% of the cohort) had an early positive fluid balance, but achieved negative fluid balance rapidly, and Class 2 (n = 234, 24.6% of the cohort) was characterized by persistent positive fluid balance. Compared to Class 1 patients, patients in Class 2 had significantly higher 60-day mortality (53.5% vs. 17.8%, p < 0.001), and fewer ventilator-free days (0 vs. 20, p < 0.001). A significant HTE between phenotypes and fluid management strategies was observed in the FACTT. An 8-variables model was derived for phenotype assignment. CONCLUSIONS: We identified and validated two novel clinical trajectories for ARDS patients, with both prognostic and predictive enrichment. The trajectories of ARDS can be identified with simple classifier models.
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Fluidoterapia , Fenotipo , Síndrome de Dificultad Respiratoria , Equilibrio Hidroelectrolítico , Humanos , Síndrome de Dificultad Respiratoria/terapia , Síndrome de Dificultad Respiratoria/fisiopatología , Femenino , Masculino , Persona de Mediana Edad , Fluidoterapia/métodos , Equilibrio Hidroelectrolítico/fisiología , Ensayos Clínicos Controlados Aleatorios como Asunto , AncianoRESUMEN
The classical renin angiotensin aldosterone system (RAAS), as well as the recently described counter-regulatory or non-canonical RAAS have been well characterized for their role in cardiovascular homeostasis. Moreover, extensive research has been conducted over the past decades on both paracrine and the endocrine roles of local RAAS in various metabolic regulations and in chronic diseases. Clinical evidence from patients on RAAS blockers as well as pre-clinical studies using rodent models of genetic manipulations of RAAS genes documented that this system may play important roles in the interplay between metabolic diseases and cancer, namely breast cancer. Some of these studies suggest potential therapeutic applications and repurposing of RAAS inhibitors for these diseases. In this review, we discuss the mechanisms by which RAAS is involved in the pathogenesis of metabolic diseases such as obesity and type-2 diabetes as well as the role of this system in the initiation, expansion and/or progression of breast cancer, especially in the context of metabolic diseases.