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Death processes have been progressively transferred to hospital spaces due to biomedicalization and the use of technologies, generating important challenges for healthcare systems. The COVID-19 pandemic exposed the lack of unified criteria and principles for a dignified death in the hospital. This study corresponds to a narrative review using Higgins & Green's methodological framework as a reference. A systematized search was carried out with the question: What are the elements considered in the decision-making of hospital teams regarding access and use of life support technology and dying processes in adult critically ill patients? The searches conducted during October 2022 in MEDLINE/PubMed, Scopus, Science Direct, CINAHL, Biblioteca Virtual en Salud (BVS), Cochrane Library, and Scielo identified 1499 records for screening, and 148 were retrieved for full-text review. Eighty-four articles were included in the review, identifying seven categories. The evidence shows variability in decision-making associated with the clinical status of the patient, the criteria of the medical professional, added to structural elements of the health system and political-legal aspects. The literature recommends reflexive, dynamic, flexible, and individualized decision-making processes that consider the patient's preferences, clinical judgment, prognosis, and available resources. Communication, advance care planning, interdisciplinary discussions, external consultations, and the involvement of ethical committees are crucial throughout the process.

Objective: to analyze the emotional response of critically-ill conscious patients during daily hygiene procedures in a Cardiology Intensive Care Unit and to compare it based on the existence of previous experiences or not., Method: a prospective and descriptive study. A 30-item ad hoc survey based on the first-day hygiene procedures was applied to 148 patients. Questions are asked about the feelings during the hygiene procedures and about positive and negative aspects of the experience. The patients are compared based on whether they had been already subjected to hygiene procedures or not., Results: 67.6% were men and their mean age was 67±15 years old; 45.9% proved to be satisfied, 27% felt embarrassment and 86.3% were grateful to the professionals for talking to them during the hygiene procedures. 33.1% of the patients had never been subjected to hygiene procedures in bed, were significantly younger and single, and presented a lower cleanliness sensation. 32% stated that they would like for a family member to collaborate in the hygiene procedures., Conclusion: the patients do not feel that their intimacy is invaded when they are subjected to hygiene procedures and appreciate communication with the health personnel while this care is provided. Those who had never been subjected to hygiene procedures in bed are younger, feel more embarrassed and are more disturbed by interruptions, in addition to being more aware of them.

Introduction: Controversy 2: Enteral nutrition care in critical patients.

Introduction: The challenge of assessing a patient's nutritional status and its evolution during treatment. From critical patients to outpatients (II).

Introduction: Introduction: the decision to supplement total parenteral nutrition (TPN) with emulsions of omega-3 (Ω3) eicosapentaenoic (EPA) and docosahexaenoic (DHA) fatty acids (FA) of marine origin is based on the clinical benefits obtained in different medical situations and surgical procedures, among which reductions in hospital stay, days of mechanical ventilation, incidence of infections and mortality stand out. However, the evidence in critically ill patients remains contradictory. Objective: the objective of this clinical trial was to analyze the effect of supplementation with EPA/DHA Ω3 FAs on clinical prognostic markers - medical, nutritional and biochemical - in critically ill patients, relating to outcome. Method: a clinical, controlled, randomized, single-center trial in 64 critically ill adult patients, of which 47 patients were randomized to receive TPN supplemented with EPA/DHA Ω3 FAs in doses of 0.1 g/kg/day (n = 23) and 0.2 g/kg/day (n = 24), compared with a historical control group with TPN without supplementation (n = 17). Clinical prognosis markers were determined at baseline and at the end of nutritional support (medical, nutritional and biochemical). Results: the two groups with supplementation showed a statistically significant reduction in mortality (p < 0.005); the clinical prognostic markers SOFA, APACHE II, SAPS 3, NUTRIC, RTL and CRS were consistent in showing a significant improvement (p < 0.005), of prognosis with doses of 0.1 and 0.2 g/kg/day of EPA/DHA Ω3 FAs, respectively. Conclusion: supplementation of parenteral nutrition with EPA/DHA Ω3 fatty acids at doses of 0.1 g and 0.2 g/kg/day improves recovery prognosis and the probability of survival in critically ill patients.

Acquisition of new morbidity (NM) has become a key clinical outcome measure after pediatric critical illness. Data on Latin American children are still scarce., Objective: to analyze the development of new morbidities acquired after hospitalization due to lower respiratory tract infection (LRTI) in pediatric intensive care units (PICU)., Patients and Method: we included patients from 35 PICUs from 8 countries, aged 0 to 18 years with a diagnosis of LRTI, discharged alive, registered between April 2018 and September 2019, and who required some type of ventilatory support (high-flow system, noninvasive ventilation or invasive ventilation), included in the LARed Network registry, which includes the Functional Status Scale (FSS) validated in the pediatric population, which assesses functional status in six domains: mental status, sensory, communication, motor skills, feeding, and respiratory status. NM considered LRTI after hospitalization and was defined as an increase of ≥ 3 points in the FSS., Results: Of 3280 children with LRTI, 85 (2.6%) developed NM, associated with diagnoses of sepsis and acute respiratory distress syndrome (ARDS), pneumococcal or adenovirus infection, healthcare-associated infections (HAIs), and invasive mechanical ventilation. Adenovirus infection, ARDS, and HAIs were independently associated with NM., Conclusions: We observed that the development of NM at PICU discharge is infrequent but is associated with modifiable risk factors. These data define certain risk groups for future interventions and initiatives to improve the quality of care.

In the pediatric intensive care units (PICU) from our region, early mobilization (EM) in patients requiring ventilatory support is an underreported activity. For this reason, we emphasize the need for epidemiological research that allows us to know the characteristics of this relevant activity in the evolution of critically ill patients. Objective: describe the population, time of onset and frequency which MT is performed in patients who received ventilatory support in a PICU of a public pediatric hospital of Latin America. Materials and methods: descriptive, retrospective, observational study, conducted in a 17-bed medical-surgical PICU of a pediatric hospital in Argentina, between July 1 and December 31, 2019. All patients under 18 years of age requiring invasive mechanical ventilation (IMV) and/or noninvasive mechanical ventilation (NIV) for at least 24hs were included. Results: 196 patients were admitted to the study, of which 124 (63.3%) received IMV and 72 (37.7%) NIV only. During their stay in PICU 143 (73%) subjects received MT and of these, 89 (62%) started MT within the first 3 days of hospitalization. In the MT group 93 (65%) required IMV and 50 (35%) NIV. All patients who were tracheostomized in PICU received MT. Conclusion: Early mobilization in pediatric critically ill patients was feasible and early in more than 70% of the population studied. Neither age, nor weight, nor ventilatory support were barriers or limiting factors for its implementation., (Universidad Nacional de Córdoba)

Background: There are limited data describing the long-term renal outcomes of critically ill COVID-19 patients with acute kidney injury (AKI) and continuous renal replacement therapy (CRRT) and invasive mechanical ventilation., Methods: In this retrospective observational study we analyzed the long-term clinical course and outcomes of 30 critically ill patients hospitalized with COVID-19 during the peak of highest incidence in the first wave, with acute respiratory distress syndrome (ARDS) and AKI that required CRRT. Baseline features, clinical course, laboratory data, therapies and filters used in CRRT were compared between survivors and non-survivors to identify risk factors associated with in-hospital death. Renal parameters: glomerular filtration rate, proteinuria and microhematuria were collected at 6months after discharge., Results: 19 patients (63%) died and 11 were discharged. Mean time to death was 48days (7-206) after admission. Patients with worse baseline renal function had higher mortality (P=.009). Patients were treated with CRRT for an average of 18.4days. Filters with adsorptive capacity (43%) did not offer survival benefits. Regarding long-term renal outcomes, survivor patients did not receive any additional dialysis, but 9 out of 11 patients had an important loss of renal function (median of eGF of 44 (13-76)ml/min/1.73m 2 ) after 6months., Conclusion: Mortality among critically ill hospitalized patients diagnosed with COVID-19 on CRRT is extremely high (63%). Baseline renal function is a predictor factor of mortality. Filters with adsorption capacity did not modify survival. None survivor patients required long-term dialysis, but an important loss of renal function occurred after AKI episode related to COVID-19 infection., (Copyright © 2022 Elsevier España, S.L.U. All rights reserved.)

Introduction: Postintensive care syndrome (PICS) is the physical, cognitive or psychiatric deterioration that appears after a critical illness and persists beyond hospital admission. The objective of this study was to describe the prevalence of PICS in the patients with coronavirus disease 2019 (COVID-19) admitted to the intensive care unit of the Consorcio Hospital General Universitario de Valencia., Patients: They benefited from a standardized assessment, addressing health-related quality of life (EuroQol-5D-3L), a physical status (6 MWT, «test up and go» and hand dynamometer), a nutritional assessment (MUST and the Global Subjective Assessment), cognitive impairment (MoCA), mental health disorders (HADS and Davidson Trauma Scale) and pain (visual analogue scale and DN4)., Results: From March to June 2020, 59 patients with SARS-CoV-2 were admitted to our ICU. 29 of these were recruited for the study. The stay in the ICU and the mechanical ventilation time were long (24 days [IQR 12-36], and 18 days [IQR 7-31] respectively). The SOFA upon admission to the ICU was high (3 [IQR 3-5]). Tracheostomy was performed in 52% and pronation in 93%. 90% had some abnormal test. 20% had post-traumatic stress syndrome., Conclusions: We found that 9 out of 10 survivors of SARS-CoV-2 admitted had at least one PICS alteration at 4-6 weeks from discharge from the Hospital. Six out of 19 patients presented with two or more affected evaluated areas., (Copyright © 2021 Elsevier España, S.L.U. All rights reserved.)

Upper airway obstruction after extubation is a serious complication that can lead to extubation fai lure and other unfavorable outcomes in children., Objective: to describe the incidence and risk fac tors associated with post-extubation upper airway obstruction in critically ill children., Patients and Method: A prospective descriptive observational study was carried out in a pediatric intensive care unit in Argentina over two years. Patients older than 1 month and younger than 18 years, receiving mechanical ventilatory support (MV) for more than 24 hours through an endotracheal tube (ETT) and with at least one programmed extubation were included., Results: Of 260 patients, 65 (25%) de veloped post-extubation upper obstruction. Of them, 37 were females (56.9%), with a median age of 14 months and 10 kg weight. The PIM3 score was 2.8 and the most frequent reason for admission was acute lower respiratory infection in 38 (43.1%) patients, among whom 36 (55.4%) had at least one complex chronic condition. Twenty-seven (41.5%) failed extubation and 5 (7.7%) required tracheos tomy. A multiple logistic regression analysis was performed to determine the relationship between different variables with the dependent variable. Independent risk factors explaining post-extubation upper obstruction were age ≤ 24 months and MV support for ≤ 3 days., Conclusion: Post-extubation upper airway obstruction is frequent in the pediatric intensive care unit. We found that infants and mechanical ventilation duration less than or equal to 3 days are independent risk factors for its pre sentation.

Introduction: The COVID-19 pandemic created tremendous challenges for health-care systems. Intensive care units (ICU) were hit with a large volume of patients requiring ICU admission, mechanical ventilation, and other organ support with very high mortality. The Centro de Investigación Biomédica en Red-Enfermedades Respiratorias (CIBERES), a network of Spanish researchers to investigate in respiratory disease, commissioned the current proposal in response to the Instituto de Salud Carlos III (ISCIII) call., Methods: CIBERESUCICOVID is a multicenter, observational, prospective/retrospective cohort study of patients with COVID-19 admitted to Spanish ICUs. Several work packages were created, including study population and ICU data collection, follow-up, biomarkers and miRNAs, data management and quality., Results: This study included 6102 consecutive patients admitted to 55 ICUs homogeneously distributed throughout Spain and the collection of blood samples from more than 1000 patients. We enrolled a large population of COVID-19 ICU-admitted patients including baseline characteristics, ICU and MV data, treatments complications, and outcomes. The in-hospital mortality was 31%, and 76% of patients required invasive mechanical ventilation. A 3-6 month and 1 year follow-up was performed. Few deaths after 1 year discharge were registered. Low anti-SARS-CoV-2 S antibody levels predict mortality in critical COVID-19. These antibodies contribute to prevent systemic dissemination of SARS-CoV-2. The severity of COVID-19 impacts the circulating miRNA profile. Plasma miRNA profiling emerges as a useful tool for risk-based patient stratification in critically ill COVID-19 patients., Conclusions: We present the methodology used in a large multicenter study sponsored by ISCIII to determine the short- and long-term outcomes in patients with COVID-19 admitted to more than 50 Spanish ICUs., (Copyright © 2022. Published by Elsevier España, S.L.U.)

Objective: To describe a cohort of critically ill adult patients suffering from COVID-19, admitted to a pediatric intensive care unit managed by a pediatric intensive care team (ICU-MP)., Patients and Method: Retrospective observational study of adults admitted to the ICU-MP due to COVID-19 from May 11 to July 26, 2020. Demographic, clinical, biochemical, ventilatory support characteris tics, and complications were recorded. Disease severity was characterized by Acute Physiology and Chronic Health Evaluation II score (APACHE II) using data from the first 24 hours of admission to the ICU-MP., Results: Ninety-three patients over 18 years with suspected or confirmed COVID-19 were admitted to the ICU-MP. The median age was 60.3 years (SD 13.9), and 59 (63.4%) patients were male. Eighty-two (88.1%) patients had at least 1 medical comorbidity. The median APACHE II score was 9.4 points (SD 5.6). Fifty-one (54.8%) patients were invasively ventilated, for a median of 13.7 days (SD 17.9). Inotropic support was used in 45 (48%) patients. Thirty-three (35.5%) patients presented acute kidney injury (AKI) and 14 (15.1%) patients received continuous renal replacement therapy. Twenty-nine (31.2%) patients had healthcare-associated infections. The median ICU-MP stay was 10.8 days (SD 11.8). 25 (26.9%) patients died, ten of them (40%) had adequacy of thera peutic effort., Conclusions: The mortality rate of critically ill patients with COVID-19 is high. Older patients (> 70 years), those who require invasive mechanical ventilation and who develop AKI are at increased risk of death. Although this is not a comparative study, our mortality rate and complica tions seem to be similar to those reported in adult case series.

Patients with critical illness develop physiological dysfunction which provokes multi-organ system failure and triggers fatal outcomes and irreversible injuries or even death. Inside Internal Medicine services of Mexican hospitals, especially in public hospitals, there is a considerable number of critically ill patients with multiple pathologies who require surveillance to reach clinical goals of their treatment. We present a summary of guidelines and goals of the most prevalent critical diseases inside Internal Medicine services, which are necessary to guide treatments., (© 2021 Instituto Mexicano del Seguro Social.)

Introduction: Introduction: optimal nutrition in the critically ill patient is a key aspect for recovery. Objectives: to promote training in and knowledge of mixed nutrition support (MNS) by means of a clinical algorithm among intensivists for improving the nutritional status of critically ill patients. Methods: a before-and-after study with the participation of 19 polyvalent intensive care units (ICUs) in 10 autonomous communities. Five members of the scientific committee trained the trainers by means of oral presentations and a clinical algorithm on MNS. Then, trainers were responsible for explaining the algorithm to local intensivists in their ICUs. The 30-item study questionnaire was completed before and after the intervention by 179 and 105 intensivists, respectively. Results: a clear improvement of knowledge was found in six (20 %) specific MNS-related questions. In 11 items (36.6 %), adequate knowledge on different aspects of nutritional support that were already present before the intervention were maintained, and in five items (16.7 %) an improvement in the rate of correct responses was recorded. There were no improvements in correct responses for four items (13.3 %), and for four (13.3 %) additional items the percentage of correct responses decreased. Conclusions: the use of the MNS algorithm has achieved a solid consolidation of the main concepts of MNS. Some aspects regarding how to manage the malnourished patient, how to identify them and what type of nutrition to guide from the beginning of admission to the ICU, nutritional contributions in special situations, and the monitoring of possible complications such as refeeding are areas for which further training strategies are needed.

Approximately 5% of COVID-19 patients will have a severe disease requiring invasive or non-invasive mechanical ventilation. In this conditions, sedatives and analgesics are fundamental to promote tolerance, comfort and synchrony with the mechanical ventilator. High and unusual requirements for sedation, analgesics and neuromuscular blockers have been reported in these patients, contributing to prolonged exposure, a high rate of delirium and prolongation of mechanical ventilation. These factors, added to the progressive shortage of these drugs, a high demand for care and less capacity for personalized attention, have created an adverse scenario for their proper and rational use. This paper proposes different pharmacotherapeutic optimization strategies for a rational management of sedation, analgesia and neuromuscular block in critically ill patients with COVID-19, with the therapeutic alternatives available in Chile.

On March 11, 2020, the Director-General of the World Health Organization (WHO) declared the disease caused by SARS-CoV-2 (COVID-19) as a pandemic. The spread and evolution of the pandemic is overwhelming the healthcare systems of dozens of countries and has led to a myriad of opinion papers, contingency plans, case series and emerging trials. Covering all this literature is complex. Briefly and synthetically, in line with the previous recommendations of the Working Groups, the Spanish Society of Intensive, Critical Medicine and Coronary Units (SEMICYUC) has prepared this series of basic recommendations for patient care in the context of the pandemic., (Copyright © 2020 Elsevier España, S.L.U. y SEMICYUC. All rights reserved.)

Given the importance of the management of sedation, analgesia and delirium in Intensive Care Units, and in order to update the previously published guidelines, a new clinical practice guide is presented, addressing the most relevant management and intervention aspects based on the recent literature. A group of 24 intensivists from 9 countries of the Pan-American and Iberian Federation of Societies of Critical Medicine and Intensive Therapy met to develop the guidelines. Assessment of evidence quality and recommendations was made according to the Grading of Recommendations Assessment, Development and Evaluation Working Group. A systematic search of the literature was carried out using MEDLINE, Cochrane Library databases such as the Cochrane Database of Systematic Reviews and the Cochrane Central Register of Controlled Trials (CENTRAL), the Database of Abstracts of Reviews of Effects, the National Health Service Economic Evaluation Database and the database of Latin American and Caribbean Literature in Health Sciences (LILACS). A total of 438 references were selected. After consensus, 47 strong recommendations with high and moderate quality evidence, 14 conditional recommendations with moderate quality evidence, and 65 conditional recommendations with low quality evidence were established. Finally, the importance of initial and multimodal pain management was underscored. Emphasis was placed on decreasing sedation levels and the use of deep sedation only in specific cases. The evidence and recommendations for the use of drugs such as dexmedetomidine, remifentanil, ketamine and others were incremented., (Copyright © 2019 Elsevier España, S.L.U. y SEMICYUC. All rights reserved.)

The administration of fluids for the resuscitation of the seriously ill patient in intensive care units is one of the most frequent interventions. Up to 40% of the time it is the nursing team that makes the decision to administer a fluid bolus to a critically ill patient according to established protocols. Therefore we perform a review in this paper of the current status of fluid therapy and its use in this type of patient. In order to optimize the knowledge and the treatment administered to this type of patient, we also describe the different types of fluids currently used and possible adverse effects that may develop after their administration., (Copyright © 2018 Elsevier España, S.L.U. All rights reserved.)

Background: In critical patients with acute renal failure, intermittent diffusive renal replacement techniques cause hemodynamic problems due to their high depurative efficiency. This situation is avoided using continuous low efficiency therapies, which are expensive, prevent patient mobilization and add hemorrhagic risk due to systemic anticoagulation. Intermittent and prolonged hemodiafiltration (HDF) has the depurative benefits of diffusion, plus the positive attributes of convection in a less expensive therapy., Aim: To report our experience with intermittent and prolonged on-line HDF in critically ill patients., Patients and Methods: During 2016, HDF therapies performed on critical patients with indication of renal replacement therapy were characterized. The hemodynamic profile was evaluated (doses of noradrenaline, blood pressure, heart rate and perfusion parameters)., Results: Fifty-one therapies were performed in 25 critical patients, aged 58 ± 11 years (28% women), with an APACHE II score of 22.1 ±10. The average time of the therapies was 4.15 hours (range 3-8 hours), the replacement volume was 75 ± 18 mL/kg/h and ultrafiltration rate was 226 ± 207 mL/h. The mean initial, maximum and final noradrenaline doses were 0.07 ± 0.1, 0.13 ±0.18 and 0.09 ±0.16 μg/kg/min respectively. No differences between patients with low, medium and high doses of noradrenaline or dose increases during therapy, were observed. The greatest decrease in mean arterial pressure was 15.3% and the maximum increase in heart rate was 12.8%. Anticoagulation was not required in 88% of therapies., Conclusions: High-volume intermittent or prolonged HDF is an effective therapy in critical patients, with good hemodynamic tolerability, lower costs and avoidance of systemic anticoagulation risks.

The greater development and creation of new Pediatric Intensive Care Units in recent years requires us to review the appropriate structure of the corresponding care between the initial resuscitation of the critical pediatric patient and care by specialists in highly complex areas. The transportation process must offer the critical pediatric patient a standard of care similar to that offered in said Unit. This standard is achieved with a team trained in pediatric transport and with the capacity to provide critical care. The decision to transport a patient within the same hospital or to another institution is based on the evaluation of the potential benefits weighed against potential risks, since there is an increase in morbidity and mortality during transport. The recommendations presented in this document are intended to try to improve the transfer of critical patients in our country., Competing Interests: The authors report no conflicts of interest in this work., (Sociedad Argentina de Pediatría.)

Introduction and Objective: To evaluate, by means of a meta-analysis, the effect of normal saline on mortality in intensive care patients, when compared with the use of balanced crystalloids., Material and Method: Published controlled clinical trials, randomised and sequential prospective studies in time, evaluating the mortality when physiological saline was used in patients admitted to intensive care units. Electronic search was performed in Medline, Embase, Cochrane Library, ISI Proceedings, and Web of Science, as well as a manual search of selected references. An independent evaluation was performed by 2 investigators. Discrepancies were resolved by consensus in the working group. Contingency tables were performed, and the OR with confidence intervals of each study were obtained. Heterogeneity was assessed by I 2 . Publication bias was assessed using funnel plot and Egger test., Results: A total of 8 articles were selected for the meta-analysis of mortality, which included a total of 20,684 patients. A significant association was observed between the use of saline and mortality in intensive care patients (OR 1.0972; 95% CI 1.0049-1.1979), when compared to the use of balanced crystalloids. No statistical evidence of publication bias (Egger, P=.5349) was found. In the sensitivity analysis, none of the studies substantially modified the overall outcome if it was eliminated from the meta-analysis., Conclusions: There may be an increase in mortality associated with the use of saline in patients admitted to intensive care when comparing with the use of balanced crystalloids., (Copyright © 2018 Sociedad Española de Anestesiología, Reanimación y Terapéutica del Dolor. Publicado por Elsevier España, S.L.U. All rights reserved.)

Outcome: To determine mortality prognostic factors in elderly patients who are admitted to intensive care units (ICUs) due to acute critical illness., Design: A prospective cohort study was carried out., Setting: A polyvalent Intensive Care Unit at a University Hospital in Argentina., Patients or Participants: We included 249 patients over 65years of age who were consecutively admitted to the ICU and required mechanical ventilation for more than 48hours, between January 2011 and December 2012. Patients with degenerative neurological disease, limitation of therapeutic effort or on chronic mechanical ventilation were excluded., Principal Variables of Interest: In-hospital mortality, comorbidity (Charlson index), APACHEII score, and pre-acute illness status were recorded: nutritional status (subjective global assessment), functionality (activities of daily living [ADL] and Barthel index), cognitive abilities (Short Reporting Questionnaire on Cognitive Decline in the Elderly [S&#95;IQCODE]) and quality of life (EQ-5D)., Results: The in-hospital mortality rate was 52%. Logistic regression analysis, after adjusting for APACHEII score and age, identified the following independent variables associated to mortality: male gender (OR: 2.46, 95%CI: 1.37-4.42), moderate malnutrition (OR: 2.07, 95%CI: 1.09-3.94), severe malnutrition (OR: 2.20, 95%CI: 1.06-4.59), and ADL<6 (OR: 2.35, 95%CI: 1.16-4.75)., Conclusions: In our study, chronological age was not associated to in-hospital mortality. However, loss of functional independence (assessed by ADL) and malnourishment were shown to be strong prognostic factors; knowing these baseline characteristics from ICU admission would be useful when making decisions regarding the intensity of treatment., (Copyright © 2017 Elsevier España, S.L.U. y SEMICYUC. All rights reserved.)

High altitude sickness (hypobaric hypoxia) is a form of cellular hypoxia similar to that suffered by critically ill patients. The study of mountaineers exposed to extreme hypoxia offers the advantage of involving a relatively homogeneous and healthy population compared to those typically found in Intensive Care Units (ICUs), which are heterogeneous and generally less healthy. Knowledge of altitude physiology and pathology allows us to understanding how hypoxia affects critical patients. Comparable changes in mitochondrial biogenesis between both groups may reflect similar adaptive responses and suggest therapeutic interventions based on the protection or stimulation of such mitochondrial biogenesis. Predominance of the homozygous insertion (II) allele of the angiotensin-converting enzyme gene is present in both individuals who perform successful ascensions without oxygen above 8000 m and in critical patients who overcome certain disease conditions., (Copyright © 2017 Elsevier España, S.L.U. y SEMICYUC. All rights reserved.)

Objective: The quality of care is a key aspect in the gene- ral hospital setting and particularly in ICU. The objective of this study was to analyze the assessment of ICU stay by patients and relatives, as well as the influence of socio-demographic/psychological variables on this assessment., Methods: 71 critically ill patients and 89 relatives answered the Questionnaire of the ICU stay assessment and the Hospital Anxiety-Depression Scale. Descriptive and frequency analyzes were performed. Likewise, correlation coefficients (Pearson/ Spearman), Student's t test, ANOVA analysis and multiple regression equations were used., Results: Results show a positive evaluation in patients, both globally (Mean=4,06; SD=1,25) and in relation to different and inherent to ICU aspects, highlighting the attention/care of professionals (Mean=4,73; SD=0,68). As unpleasant/annoying aspects, they show the scarce possibilities of distraction (Mean=2,41; SD=1,38), lack of silence (Mean=3,15; SD=1,19) and visits policy (Mean=3,66; SD=1,04). Families evaluate globally the patient stay in ICU as “something” pleasant (Mean=3,31; SD=1,76). They also assess most aspects of the unit positively and underline the care/attention of professionals and the attention to psycho- logical needs. The valuation of the ICU stay shows differences in some aspects on the basis of socio-demographic variables. Likewise, family assesses more negatively the patient stay in ICU than patients do., Conclusions: The general evaluation of the ICU stay was positive, although with aspects susceptible to be improved. To know this reality is the prior step to the implementation of those measures that reinforce the well-valued issues and improve the worst- valued aspects in order to optimize the quality of the offered care., Competing Interests: Disclosure The authors report no conflicts of interest in this work.

In order to make estimations on the evolution and near future of enteral nutrition in critically ill adult patients, we have revised the current clinical practices based on the latest guidelines for the provision and assessment of enteral nutrition support therapy. Once revised the suggested guideline recommendations we proceed to discuss the major recently published studies concerning these guidelines. Finally, we commented on several uncertainty areas highlighting priorities for clinical research in the near future. These uncertainty areas were as follows: administration methods of enteral nutrition, gastric residual volume monitorization, other aspects of gastrointestinal tolerance, protein requirements, glycemic monitorization and diabetic specific diets, immune-modulating formulas, permissive underfeeding or trophic enteral nutrition, supplementary nutrition and muscle wasting.

Introduction: Critical illness in paediatric patients includes acute conditions in a healthy child as well as exacerbations of chronic disease, and therefore these situations must be clinically managed in Critical Care Units. The role of the paediatric nurse is to ensure the comfort of these critically ill patients. To that end, instruments are required that correctly assess critical comfort., Objective: To describe the process for validating the content of a paediatric critical comfort scale using mixed-method research., Material and Methods: Initially, a cross-cultural adaptation of the Comfort Behavior Scale from English to Spanish using the translation and back-translation method was made. After that, its content was evaluated using mixed method research. This second step was divided into a quantitative stage in which an ad hoc questionnaire was used in order to assess each scale's item relevance and wording and a qualitative stage with two meetings with health professionals, patients and a family member following the Delphi Method recommendations., Results: All scale items obtained a content validity index >0.80, except physical movement in its relevance, which obtained 0.76. Global content scale validity was 0.87 (high). During the qualitative stage, items from each of the scale domains were reformulated or eliminated in order to make the scale more comprehensible and applicable., Conclusions: The use of a mixed-method research methodology during the scale content validity phase allows the design of a richer and more assessment-sensitive instrument., (Copyright © 2017 Sociedad Española de Enfermería Intensiva y Unidades Coronarias (SEEIUC). Publicado por Elsevier España, S.L.U. All rights reserved.)

The standardization of the Intensive Care Medicine may improve the management of the adult critically ill patient. However, these strategies have not been widely applied in the Intensive Care Units (ICUs). The aim is to elaborate the recommendations for the standardization of the treatment of critical patients. A panel of experts from the thirteen working groups (WG) of the Spanish Society of Intensive and Critical Care Medicine and Coronary Units (SEMICYUC) was selected and nominated by virtue of clinical expertise and/or scientific experience to carry out the recommendations. Available scientific literature in the management of adult critically ill patients from 2002 to 2016 was extracted. The clinical evidence was discussed and summarised by the experts in the course of a consensus finding of every WG and finally approved by the WGs after an extensive internal review process that was carried out between December 2015 and December 2016. A total of 65 recommendations were developed, of which 5 corresponded to each of the 13 WGs. These recommendations are based on the opinion of experts and scientific knowledge, and are intended as a guide for the intensivists in the management of critical patients., (Copyright © 2017 Elsevier España, S.L.U. y SEMICYUC. All rights reserved.)

Background and Objective: A frequent source of critically-ill patients admitted to the ICU is the Emergency Department. It is essential to analyse the short-term prognosis of these patients, but also their evolution after their discharge from the hospital, since this is one of the major concerns of these patients. The aim of this study is to describe the epidemiological characteristics of patients admitted to the ICU from the Emergency Department and to analyse their outcome., Patients and Method: This consisted of an observational prospective cohorts study which included 269 Emergency Department patients consecutively admitted to the ICU over an 18-month period. Factors associated with hospital mortality were presented as an odds ratio (OR) and factors associated with long-term mortality were presented as a hazard ratio (HR). A P-value lower than .05 was accepted as significant. The overall survival was analysed on the basis of the Kaplan-Meier curves., Results: Hospital mortality was 15%, ICU complications where the variables with the greatest impact on short-term mortality: acute renal failure (OR 22.7) and respiratory distress syndrome (OR 51.2). After hospital discharge, the cumulative mortality at 12, 24 and 36 months was 6, 11 and 15%, respectively. The degree of functional dependence (HR 3.7), cancer (HR 3.4) and arrhythmias (HR 2.4) were factors related to long-term mortality., Conclusions: The short-term outcome of ICU patients is related to age and comorbidity, but more significantly to the characteristics of the acute illness. However, the long-term outcome is more closely associated with the patients' characteristics., (Copyright © 2016 Elsevier España, S.L.U. All rights reserved.)

Background: Metabolic changes of glucose in critically ill patients increase morbidity and mortality. The appropriate level of blood glucose has not been established so far and should be adjusted for different populations. However concepts such as glucose variability and relative hypoglycemia of critically ill patients are concepts that are changing management methods and achieving closer monitoring., Objectives: The purpose of this review is to present new data about the management and metabolic control of patients in critical areas., Conclusions: Currently glucose can no longer be regarded as an innocent element in critical patients; both hyperglycemia and hypoglycemia increase morbidity and mortality of patients. Protocols and better instruments for continuous measurement are necessary to achieve the metabolic control of our patients., (Copyright © 2016 Academia Mexicana de Cirugía A.C. Publicado por Masson Doyma México S.A. All rights reserved.)

The need for critical care services is increasing in Chile. Critical care beds and specialists in this area are scarce. In this article we discuss some aspects that hamper the care of critically ill patients from their arrival to the emergency department to their transfer to the ICU. Special emphasis is given to system saturation and its multiple causes. The benefits of an integrative approach between emergency medicine and critical care specialists are highlighted and some solutions are proposed to strengthen this partnership.

Introduction: Enteral nutrition is an important therapy for severely critically ill patients. The timing and amount of energy have been highly debated., Objective: The aim of the present study was to directly compare the timing and the caloric targets in critically ill patients., Methods: Retrospective cohort study conducted at a single center, comparing timing and caloric goal for critically ill patients. Patients were stratified according to the start of nutritional therapy (24, 48, or more than 48 h) and the amount of energy delivered (target adequacy of previously calculated percentage in the first week). Statistical analysis was performed using parametric and non-parametric tests for independent samples and logistic regression. The results were expressed as mean ± standard deviation or incidence and percentage., Results and Discussion: There were no differences in major clinical outcomes in relation to the achievement of percentage of caloric goal at the end of the first week of the study. The beginning of caloric intake on the first day of hospitalization was associated with reduced mortality in the intensive care unit, but not with hospital mortality. The strategy of an early and limited amount of calories seems to be associated with a better outcome. Prospective studies evaluating and comparing these strategies are recommended.

In recent years, several safety alerts have questioned or restricted the use of some pharmacological alternatives to allogeneic blood transfusion in established indications. In contrast, there seems to be a promotion of other alternatives, based on blood products and/or antifibrinolytic drugs, which lack a solid scientific basis. The Multidisciplinary Autotransfusion Study Group and the Anemia Working Group España convened a multidisciplinary panel of 23 experts belonging to different healthcare areas in a forum for debate to: 1) analyze the different safety alerts referred to certain transfusion alternatives; 2) study the background leading to such alternatives, the evidence supporting them, and their consequences for everyday clinical practice, and 3) issue a weighted statement on the safety of each questioned transfusion alternative, according to its clinical use. The members of the forum maintained telematics contact for the exchange of information and the distribution of tasks, and a joint meeting was held where the conclusions on each of the items examined were presented and discussed. A first version of the document was drafted, and subjected to 4 rounds of review and updating until consensus was reached (unanimously in most cases). We present the final version of the document, approved by all panel members, and hope it will be useful for our colleagues., (Copyright © 2015 Elsevier España, S.L.U. and SEMICYUC. All rights reserved.)

The judicious use of existing antibiotics is essential for preserving their activity against infections. In the era of multi-drug resistance, this is of particular importance in clinical areas characterized by high antibiotic use, such as the ICU. Antibiotic dose optimization in critically ill patients requires sound knowledge not only of the altered physiology in serious infections - including severe sepsis, septic shock and ventilator-associated pneumonia - but also of the pathogen-drug exposure relationship (i.e. pharmacokinetic/pharmacodynamic index). An important consideration is the fact that extreme shifts in organ function, such as those seen in hyperdynamic patients or those with multiple organ dysfunction syndrome, can have an impact upon drug exposure, and constant vigilance is required when reviewing antibiotic dosing regimens in the critically ill. The use of continuous renal replacement therapy and extracorporeal membrane oxygenation remain important interventions in these patients; however, both of these treatments can have a profound effect on antibiotic exposure. We suggest placing emphasis on the use of therapeutic drug monitoring and dose individualization when optimizing therapy in these settings., (Copyright © 2015 Elsevier España, S.L.U. and SEMICYUC. All rights reserved.)

Objectives: To analyze the nutritional management practices in Intensive Care (ICU) to detect the need for improvement actions. Re-evaluate the process after implementation of improvement actions., Design: Prospective observational study in 3 phases: 1) observation; 2) analysis, proposal development and dissemination; 3) analysis of the implementation., Setting: ICU of a hospital of high complexity., Participants: Adult ICU forecast more than 48h of artificial nutrition., Primary Endpoints: Parenteral nutrition (PN), enteral nutrition (EN) (type, average effective volume, complications) and average nutritional ratio., Results: A total of 229 patients (phase 1: 110, phase 3: 119). After analyzing the initial results, were proposed: increased use and precocity of EN, increased protein intake, nutritional monitoring effectiveness and increased supplementary indication NP. The measures were broadcast at specific meetings. During phase 3 more patients received EN (55.5 vs. 78.2%, P=.001), with no significant difference in the start time (1.66 vs. 2.33 days), duration (6.82 vs. 10,12 days) or complications (37,7 vs. 47,3%).Use of hyperproteic diets was higher in phase 3 (0 vs. 13.01%, P<.05). The use of NP was similar (48.2 vs. 48,7%) with a tendency to a later onset in phase 3 (1.25±1.25 vs. 2.45±3.22 days). There were no significant differences in the average nutritional ratio (0.56±0.28 vs. 0.61±0.27, P=.56)., Conclusions: The use of EN and the protein intake increased, without appreciating effects on other improvement measures. Other methods appear to be necessary for the proper implementation of improvement measures., (Copyright © 2015 Elsevier España, S.L.U. and SEMICYUC. All rights reserved.)

"Pharmaconutrient" is a term applicable to those compounds which. in addition to their nutritional function, play a role as aids in the treatment of patients with severe pathologies, including sepsis, trauma, burns and major surgery, In general, enrichment of enteral an parenteral formulas with pharmaconutrients contribute to positively modulate the inflammatory response, infection and controlling the internal milieu, which in turn can be evaluated through lower mortality, hospital and intensive care units stay, days of mechanical ventilation and other parameters allowing to asses their effects. Arginine, glutamine, nucleotides, omega-3 fatty acids and antioxidant micronutrients, make up the nucleus of pharmaconutrients used with that aim, usually as mixtures of them. In the present review current evidence about the effects, indications, limitations, doses, potential adverse risks and even counter-indications is analysed., (Copyright AULA MEDICA EDICIONES 2014. Published by AULA MEDICA. All rights reserved.)

The benefit of enteral nutrition in critically ill patients has been demonstrated by several studies, especially when it is started early, in the first 24-48h of stay in the Intensive Care Unit, and this practice is currently advised by the main clinical guidelines. The start of enteral nutrition is controversial in patients with hemodynamic failure, since it may trigger intestinal ischemia. However, there are data from experimental studies in animals, as well as from observational studies in humans that allow for hypotheses regarding its beneficial effect and safety. Interventional clinical trials are needed to confirm these findings., (Copyright © 2014 Elsevier España, S.L.U. y SEMICYUC. All rights reserved.)

Background: Non-invasive ventilation is used with a mechanical ventilator and an interface that is interposed between the patient and the ventilator without invading the airway. It is an alternative to the artificial airway in situations of acute respiratory insufficiency., Objective: Determine if the selection of an appropriate interface to the contour of the patient's face and the pathology involves the triumph or failure of the procedure, deeming it is a dependent variable in the success of the NIV., Method: Research bibliographic in PubMed, with secondary search in the Cochrane Library and CUIDEN. Includes the articles published since 2000 in adults. No limitations have been imposed on study design, type of intervention or results of the publications. The articles are reviewed to determine their relevance and draw conclusions. The heterogeneity of designs prevents statistical combination of results and a review was conducted descriptive., Results: There were 67 publications of which 28 were rejected by may not be related to the reason for this study, 12 to be made in pediatric population, 8 per language, 2 to be carried out on animals and 1 to be duplicated. The 16 included studies attest to the effectiveness of the NIV with studies not comparable between different interfaces., Conclusions: The consulted evidence suggests the benefits of NIV it insisting on the great importance of the interface to tolerance and successful of the technique. The studies are heterogeneous in its design but the authors suggest continue developing better interfaces, with greater tolerance and fewer complications.

Background: Human albumin solutions are used in a number of disorders, though their indications are not clear in all circumstances. These solutions are costly, and their benefit has not been established in all settings. It is therefore interesting to assess the presence of albumin solutions in the daily clinical practice of critical care professionals., Objectives: To report the standard clinical practices and to describe the variability of albumin solutions use in critically ill patients., Design: A survey sent by e-mail to Spanish and South American Intensive Care Units (ICUs), Period: Planning and execution during the year 2012., Methods: A questionnaire comprising 35 questions., Results: Fifty-seven surveys were analyzed. The use of albumin solutions was sporadic or negligible in critically ill patients (96.5%). The exceptions were patients with liver disease (87.7% of the responders administered albumin to these patients). A high percentage of professionals claimed to know the available scientific evidence on the use of albumin in patients with liver disease (82.5%) and in patients without liver disease (77.2%). Only 5.3% of the responders preferred to rely on their own experience to establish the indications of albumin use., Conclusions: The use of albumin solutions is infrequent in ICUs, except in patients with liver disease. Evidence-based knowledge on albumin use is declared to be extensive in ICUs. As a rule, opinions on the use of albumin solutions are based on the scientific recommendations, especially in patients with liver disease. Professional experience rarely prevails over the published clinical guidelines., (Copyright © 2013 Elsevier España, S.L.U. and SEMICYUC. All rights reserved.)