Nutritional interventions as modulators of the disease activity for idiopathic inflammatory myopathies: a scoping review.

Idiopathic inflammatory myopathies (IIMs) are chronic, autoimmune connective tissue diseases associated with significant morbidity and disability. Nutrients can activate the immune system and contribute to chronic low-grade inflammation (LGI). Chronic muscle inflammation leads to imbalanced pro-inflammatory and anti-inflammatory cytokines, causing inadequate nutrition, weight loss and muscle weakness during a negative cycle. Owing to its potential to modulate LGI in various diseases, the Mediterranean diet (Med Diet) has been extensively studied. This scoping review explores the nutritional implications and recommendations of the Med Diet as a treatment for immune-mediated diseases, focusing on the gaps in IIM nutritional interventions. A comprehensive literature search of the MEDLINE and EBSCO databases between September 2018 and December 2022 was performed. We identified that the Med Diet and its specific components, such as omega-3 (nω3) fatty acids, vitamin D and antioxidants, play a role in the dietary treatment of connective tissue-related autoimmune diseases. Nutritional interventions have demonstrated potential for modulating disease activity and warrant further exploration of IIMs through experimental studies. This review introduces a dietary therapeutic approach using the Med Diet and related compounds to regulate chronic inflammatory processes in IIMs. However, further clinical studies are required to evaluate the efficacy of the Med Diet in patients with IIMs. Emphasising a clinical-nutritional approach, this study encourages future research on the anti-inflammatory effects of the Med Diet on IIMs. This review highlights potential insights for managing and treating these conditions using a holistic approach.

Occupational therapist-guided cognitive interventions in critically ill patients: a feasibility randomized controlled trial.

PURPOSE: Intensive care unit (ICU) delirium is a common complication of critical illness requiring a multimodal approach to management. We assessed the feasibility of a novel occupational therapist (OT)-guided cognitive intervention protocol, titrated according to sedation level, in critically ill patients. METHODS: Patients aged ≥ 18 yr admitted to a medical/surgical ICU were randomized to the standard delirium prevention protocol or to the OT-guided cognitive intervention protocol in addition to standard of care. The target enrolment number was N = 112. Due to the COVID-19 pandemic, the study enrolment period was truncated. The primary outcome was feasibility of the intervention as measured by the proportion of eligible cognitive interventions delivered by the OT. Secondary outcomes included feasibility of goal session length (20 min), participant clinical outcomes (delirium prevalence and duration, cognitive status, functional status, quality of life, and ICU length of stay), and a description of methodological challenges and solutions for future research. RESULTS: Seventy patients were enrolled and 69 patients were included in the final analysis. The majority of OT-guided sessions (110/137; 80%) were completed. The mean (standard deviation [SD]) number of sessions per patient was 4.1 (3.8). The goal session length was achieved (mean [SD], 19.8 [3.1] min), with few sessions (8/110; 7%) terminated early per patient request. CONCLUSION: This novel OT-guided cognitive intervention protocol is feasible in medical/surgical ICU patients. A larger randomized controlled trial is required to determine the impact of such a protocol on delirium prevalence or duration. STUDY REGISTRATION: www. CLINICALTRIALS: gov (NCT03604809); registered 18 June 2018.

RéSUMé: OBJECTIF: Le délirium est une complication courante à l'unité des soins intensifs et requiert une prise en charge multimodale. Nous avons évalué la faisabilité d'un nouveau protocole d'intervention cognitive dirigé par l'ergothérapeute, titré en fonction du niveau de sédation, chez des patients gravement malades. MéTHODE: Les patients âgés ≥ 18 ans admis dans une USI médico-chirurgicale ont été randomisés à suivre le protocole standard de prévention du délirium ou le protocole d'intervention cognitive dirigé par l'ergothérapeute, en plus du standard de soins. La cible de recrutement était N = 112. En raison de la pandémie de COVID-19, la période de recrutement de l'étude a été raccourcie. Le critère d'évaluation principal était la faisabilité de l'intervention telle que mesurée par la proportion d'interventions cognitives admissibles prodiguées par l'ergothérapeute. Les critères d'évaluation secondaires comprenaient la faisabilité de la durée cible de la séance (20 min), les issues cliniques des participants (prévalence et durée du délirium, état cognitif, état fonctionnel, qualité de vie et durée de séjour à l'USI), ainsi qu'une description des défis méthodologiques et des solutions pour les recherches futures. RéSULTATS: Soixante-dix patients ont été recrutés et 69 patients ont été inclus dans l'analyse finale. La majorité des séances dirigées par l'ergothérapie (110/137; 80 %) ont été complétées. Le nombre moyen (écart type [ET]) de séances par patient était de 4,1 (3,8). L'objectif de durée de la séance a été atteint (moyenne [ET], 19,8 [3,1] min), avec quelques séances (8/110; 7 %) interrompues prématurément à la demande du patient. CONCLUSION: Ce nouveau protocole d'intervention cognitive dirigé par l'ergothérapie est réalisable chez les patients en soins intensifs médicaux et chirurgicaux. Une étude randomisée contrôlée plus vaste est nécessaire afin de déterminer l'impact d'un tel protocole sur la prévalence ou la durée du délirium. ENREGISTREMENT DE L'éTUDE: www.ClinicalTrials.gov (NCT03604809); enregistrée le 18 juin 2018.

Effect of early cognitive interventions on delirium in critically ill patients: a systematic review.

PURPOSE: A systematic review of the literature was conducted to determine the effects of early cognitive interventions on delirium outcomes in critically ill patients. SOURCE: Search strategies were developed for MEDLINE, EMBASE, Joanna Briggs Institute, Cochrane, Scopus, and CINAHL databases. Eligible studies described the application of early cognitive interventions for delirium prevention or treatment within any intensive care setting. Study designs included randomized-controlled trials, quasi-experimental trials, and pre/post interventional trials. Two reviewers independently extracted data and assessed risk of bias using Cochrane methodology. PRINCIPAL FINDINGS: Four hundred and four citations were found. Seven full-text articles were included in the final review. Six of the included studies had an overall serious, high, or critical risk of bias. After application of cognitive intervention protocols, a significant reduction in delirium incidence, duration, occurrence, and development was found in four studies. Feasibility of cognitive interventions was measured in three studies. Cognitive stimulation techniques were described in the majority of studies. CONCLUSION: The study of early cognitive interventions in critically ill patients was identified in a small number of studies with limited sample sizes. An overall high risk of bias and variability within protocols limit the utility of the findings for widespread practice implications. This review may help to promote future large, multi-centre trials studying the addition of cognitive interventions to current delirium prevention practices. The need for robust data is essential to support the implementation of early cognitive interventions protocols.

RéSUMé: OBJECTIF : Une revue systématique de la littérature a été réalisée afin de déterminer les effets des interventions cognitives précoces sur l'évolution du delirium chez les patients en état critique. SOURCE: Des stratégies de recherche ont été mises au point pour explorer les bases de données MEDLINE, EMBASE, Joanna Briggs Institute, Cochrane, Scopus et CINAHL. Les études éligibles devaient décrire l'application d'interventions cognitives précoces pour la prévention ou le traitement du delirium dans un contexte de soins intensifs. Les types d'études retenues incluaient des études randomisées contrôlées, des études quasi expérimentales et des études pré-/post-interventionnelles. En se fondant sur la méthodologie Cochrane, deux réviseurs ont extrait les données et évalué le risque de biais de manière indépendante. CONSTATATIONS PRINCIPALES: Quatre cent quatre citations ont été extraites. Sept articles ont été retenus pour le compte rendu final. Six des études incluses présentaient un risque global de biais majeur, élevé ou critique. Après l'application des protocoles d'interventions cognitives, quatre études ont noté une réduction significative de l'incidence, de la durée, de la survenue et de l'apparition de delirium. Trois études ont mesuré la faisabilité des interventions cognitives. La majorité des études décrivaient les techniques de stimulation cognitive. CONCLUSION: Nous sommes parvenus à identifier quelques études ayant des tailles d'échantillon limitées décrivant des interventions cognitives précoces chez les patients en état critique. Un risque global élevé de biais et de variabilité au sein des protocoles limite toutefois l'utilité de ces observations pour leurs applications dans la pratique. Ce compte rendu pourrait susciter l'intérêt de chercheurs pour réaliser des études d'envergure et multicentriques examinant l'ajout d'interventions cognitives aux pratiques actuelles de prévention du delirium. Le besoin de données robustes est crucial pour soutenir la mise en œuvre de protocoles précoces d'interventions cognitives.

Socio-demographic characteristics associated with hospitalization for sepsis among adults in Canada: a Census-linked cohort study.

PURPOSE: Sepsis is a considerable health system burden. Population-based epidemiological surveillance of sepsis is limited to basic data available in administrative databases. We sought to determine if routinely collected Census data, linked to hospitalization data, can provide a broad socio-demographic profile of patients admitted to Canadian hospitals with sepsis. METHODS: Linking the 2006 long-form Canadian Census (most recent available for linkage) to the Discharge Abstract Data from 2006/2007 to 2008/2009, we created a population-based cohort of approximately 3,433,900 Canadians. Patients admitted to hospital with sepsis were identified using the Canadian Institute for Health Information administrative data definition. Age-standardized hospital admission rates for sepsis were calculated. Multivariable modelling was used to examine the relationship between Census characteristics and hospitalization with sepsis. RESULTS: Of those individuals successfully linked to the 2006 long-form Canadian Census, 10,400 patients of 18 yr and older were admitted to hospital with sepsis between the fiscal years 2006/2007 and 2008/2009. These individuals represented a weighted count of approximately 49,000 Canadians from all provinces and territories, excluding Quebec. The age-standardized rate of sepsis hospitalization was 96 cases/100,000 population. Of these, 37/100,000 cases were classified as severe sepsis. The association of Census characteristics with sepsis hospitalization varied with age. In all age-specific models, male sex, never being married, visible minority status, having functional limitations, and not being in the labour force were associated with an increased odds of hospital admission. CONCLUSIONS: Census data identified broad socio-demographic risk factors for admission to hospital with sepsis. Consideration should be given to incorporating Census data linked to administrative hospital data in population-based epidemiologic surveillance.

Renal replacement therapy: a practical update.

Acute kidney injury (AKI) is defined as an abrupt decrease in kidney function, with the most severe form requiring some method of renal replacement therapy (RRT). The use of RRT is required in 5-10% of critically ill patients who develop severe AKI. Renal replacement therapy can be provided as either intermittent hemodialysis or one of the various modes of continuous renal replacement therapy (CRRT), with CRRT potentially conferring an advantage with respect to renal recovery and dialysis independence. There is no difference in mortality when comparing low (< 25 mL·kg-1·hr-1) vs high (> 40 mL·kg-1·hr-1) RRT dosing. Continuous renal replacement therapy may be run in different modes of increasing complexity depending on a given patient's clinical needs. Regional citrate anticoagulation is recommended as the therapy of choice for the majority of critically ill patients requiring CRRT.

RéSUMé: L'insuffisance rénale aiguë (IRA) se définit par une réduction subite de la fonction rénale, et sa forme la plus grave nécessite un type de traitement substitutif. Le recours à un traitement substitutif de l'insuffisance rénale est nécessaire chez 5-10 % des patients critiques qui souffrent d'une IRA grave. Le traitement substitutif de l'insuffisance rénale peut prendre la forme d'une hémodialyse intermittente ou de l'un des divers modes de traitement substitutif de l'insuffisance rénale en continu, ce second type de traitement conférant potentiellement un avantage en matière de récupération de la fonction rénale et d'indépendance de la dialyse. Aucune différence de mortalité n'a été observée en comparant un traitement substitutif de l'insuffisance rénale à faible dose d'ultrafiltration (< 25 mL·kg−1·h−1) vs à dose élevée (> 40 mL·kg−1·h−1). Le traitement substitutif de l'insuffisance rénale en continu peut être réalisé selon différents modes de complexité croissante en fonction des besoins cliniques d'un patient donné. Une anticoagulation régionale au citrate est recommandée comme traitement de choix pour la majorité des patients critiques nécessitant un traitement substitutif de l'insuffisance rénale en continu.

Association between protein intake and functional capacity in critically ill patients: A retrospective cohort study.

BACKGROUND: Intensive care unit (ICU) protein benchmarks are based on mortality and morbidity; whether these targets also support functional recovery is unknown. We assessed whether different protein doses influenced patients' functional capacity, measured by the Chelsea Physical Assessment score (CPAx). METHODS: Single-center retrospective cohort study on ICU survivors with length of stay ≥7 days admitted between October 2014 and September 2020. Eligible patients were divided according to protein intake (g/kg/day): low (<0.8), medium (0.8-1.19), high (1.2-1.5), and very high (>1.5). Protein dose effect on CPAx was assessed at ICU discharge with analysis of covariance adjusting for age, illness severity, hospital length of stay before ICU admission, time to start nutrition support, and mechanical ventilation duration. We also investigated effect modification by energy intake and nutrition status. RESULTS: Enrolled patients (n = 531) were similar for age, nutrition status, and illness severity across groups. CPAxs were nonlinearly associated with protein doses and similar among low, medium, and very high groups. The CPAx for the high group was statistically different (P = 0.014), indicating that the data of three groups could be pooled. Mean CPAx difference remained statistically significant after adjusting for confounding variables (3.9 ± 1.8, P = 0.029 in the four-group model, and 2.7 ± 0.9, P = 0.003 in the pooled two-group model). Energy intake was equivalent between groups and did not modify CPAx. The high group had superior CPAx in both well-nourished and malnourished patients, indicating nutrition status was not an effect modifier. CONCLUSION: Protein dose 1.2-1.5 g/kg/day was associated with superior functional capacity at ICU discharge compared with other doses. Neither energy intake nor nutrition status modified functional capacity across groups; therefore, the results appear to be influenced by 1.2-1.5 g/kg/day.

The effect of enteral stimulation on the immune response of the intestinal mucosa and its application in nutritional support.

The intestine plays a fundamental role as a regulator of the mucosal immune response, mostly through the production and secretion of secretory Immunoglobulin A (sIgA) by the gut-associated lymphoid tissue (GALT). Enteral stimulation, a balance between the commensal microbiota and pathogenic microorganisms, in addition to an adequate nutritional status is required for the optimal immune function of the intestine. Fasting subjects or those supported only with parenteral nutrition, show a progressive anatomical and physiological deterioration of the GALT, triggering a series of alterations resulting in a decrease in the intestinal immune response, modification in the type of microbiota, and changes that lead to or aggravate malnutrition. Patients with malnutrition present an increase in the rate of nosocomial infections, hospital length of stay, and mortality. An adequate nutritional assessment at hospital admission and avoiding long periods of fasting are paramount to prevent these unfavorable outcomes. Herein, we present a mini-state of the art review on the role and importance of enteral stimulation by GALT-mediated immune response.

Clinical review: Ventilatory strategies for obstetric, brain-injured and obese patients.

The ventilatory management of patients with acute respiratory failure is supported by good evidence, aiming to reduce lung injury by pressure limitation and reducing the duration of ventilatory support by regular assessment for discontinuation. Certain patient groups, however, due to their altered physiology or disease-specific complications, may require some variation in usual ventilatory management. The present manuscript reviews the ventilatory management in three special populations, namely the patient with brain injury, the pregnant patient and the morbidly obese patient.

Secondary Hemophagocytic Lymphohistiocytosis: A Challenging Diagnosis in a Patient with Autoimmune Hepatitis.

BACKGROUND: We describe a case of secondary Hemophagocytic Lymphohistiocytosis (HLH) from autoimmune hepatitis mimicking severe sepsis in a man admitted to the intensive care unit. CASE PRESENTATION: A 34-year-old Pakistani male with a prior history of biopsy-proven autoimmune hepatitis presented to a regional hospital with severe fever, cytopenias, hyperferritinemia, hypertriglyceridemia, splenomegaly, and a bone marrow biopsy showing hemophagocytosis. After ruling out mimicking conditions, a diagnosis of HLH was made using the HLH-2004 diagnostic criteria. He was treated with dexamethasone and etoposide, without bone marrow transplantation (BMT) due to poor functional status. At one-year after follow-up, he had returned to his baseline functional status without recurrence. CONCLUSION: We describe a rare case of secondary HLH in the setting of autoimmune hepatitis. Broadly, this case report educates clinicians to consider this potentially missed diagnosis. This case also informs clinicians that treatment of secondary HLH with BMT may not be necessary for the management of secondary HLH due to autoimmune hepatitis. Finally, it provides a detailed description of the natural history of a single patient with secondary HLH due to autoimmune hepatitis.

Derivation of a PIRO Score for Prediction of Mortality in Surgical Patients With Intra-Abdominal Sepsis.

BACKGROUND: Mortality in patients with intra-abdominal sepsis remains high. Recognition and classification of patients with sepsis are challenging; about 70% of critical care specialists find the existing definitions confusing and not clinically useful. OBJECTIVE: To assess the usefulness of the predisposition, infection/injury, response, organ dysfunction (PIRO) concept in surgical intensive care patients with severe sepsis or septic shock due to an intra-abdominal source. METHODS: Data from 2005 through 2010 of a prospective observational cohort were reviewed retrospectively. RESULTS: Among 905 patients, overall mortality was 21.3%, but patients with septic shock had a mortality of 40.6%. The variables in each PIRO subset with P ≤ .10 were entered into a stepwise backward elimination logistic regression. A PIRO score was developed that included the following variables: age greater than 65 years; comorbid conditions; leukopenia; hypothermia; and cardiovascular, renal, respiratory, and central nervous system failure. One point was given for each feature detected. The mean score was significantly higher (P < .001) in non-survivors (3.9) than in survivors (2.3). When the data were distributed according to PIRO scores, mortality rate increased (P < .001). The area under the receiver operating characteristic curve indicated consistent mortality discrimination by PIRO scores (0.80; 95% CI, 0.79-0.83), outperforming the Acute Physiology and Chronic Health Evaluation II (0.72; 95% CI, 0.68-0.75) and the Sequential Organ Failure Assessment (0.72; 95% CI, 0.68-0.76) (P < .001). CONCLUSION: The PIRO score is useful for predicting mortality in patients with surgically related intra-abdominal sepsis.

Getting the invite list right: a discussion of sepsis severity scoring systems in severe complicated intra-abdominal sepsis and randomized trial inclusion criteria.

Background: Severe complicated intra-abdominal sepsis (SCIAS) is a worldwide challenge with increasing incidence. Open abdomen management with enhanced clearance of fluid and biomediators from the peritoneum is a potential therapy requiring prospective evaluation. Given the complexity of powering multi-center trials, it is essential to recruit an inception cohort sick enough to benefit from the intervention; otherwise, no effect of a potentially beneficial therapy may be apparent. An evaluation of abilities of recognized predictive systems to recognize SCIAS patients was conducted using an existing intra-abdominal sepsis (IAS) database. Methods: All consecutive adult patients with a diffuse secondary peritonitis between 2012 and 2013 were collected from a quaternary care hospital in Finland, excluding appendicitis/cholecystitis. From this retrospectively collected database, a target population (93) of those with either ICU admission or mortality were selected. The performance metrics of the Third Consensus Definitions for Sepsis and Septic Shock based on both SOFA and quick SOFA, the World Society of Emergency Surgery Sepsis Severity Score (WSESSSS), the APACHE II score, Manheim Peritonitis Index (MPI), and the Calgary Predisposition, Infection, Response, and Organ dysfunction (CPIRO) score were all tested for their discriminant ability to identify this subgroup with SCIAS and to predict mortality. Results: Predictive systems with an area under-the-receiving-operating characteristic (AUC) curve > 0.8 included SOFA, Sepsis-3 definitions, APACHE II, WSESSSS, and CPIRO scores with the overall best for CPIRO. The highest identification rates were SOFA score ≥ 2 (78.4%), followed by the WSESSSS score ≥ 8 (73.1%), SOFA ≥ 3 (75.2%), and APACHE II ≥ 14 (68.8%) identification. Combining the Sepsis-3 septic-shock definition and WSESSS ≥ 8 increased detection to 80%. Including CPIRO score ≥ 3 increased this to 82.8% (Sensitivity-SN; 83% Specificity-SP; 74%. Comparatively, SOFA ≥ 4 and WSESSSS ≥ 8 with or without septic-shock had 83.9% detection (SN; 84%, SP; 75%, 25% mortality). Conclusions: No one scoring system behaves perfectly, and all are largely dominated by organ dysfunction. Utilizing combinations of SOFA, CPIRO, and WSESSSS scores in addition to the Sepsis-3 septic shock definition appears to offer the widest "inclusion-criteria" to recognize patients with a high chance of mortality and ICU admission. Trial registration: https://clinicaltrials.gov/ct2/show/NCT03163095; Registered on May 22, 2017.

Closed Or Open after Source Control Laparotomy for Severe Complicated Intra-Abdominal Sepsis (the COOL trial): study protocol for a randomized controlled trial.

Background: Severe complicated intra-abdominal sepsis (SCIAS) has an increasing incidence with mortality rates over 80% in some settings. Mortality typically results from disruption of the gastrointestinal tract, progressive and self-perpetuating bio-mediator generation, systemic inflammation, and multiple organ failure. Principles of treatment include early antibiotic administration and operative source control. A further therapeutic option may be open abdomen (OA) management with active negative peritoneal pressure therapy (ANPPT) to remove inflammatory ascites and ameliorate the systemic damage from SCIAS. Although there is now a biologic rationale for such an intervention as well as non-standardized and erratic clinical utilization, this remains a novel therapy with potential side effects and clinical equipoise. Methods: The Closed Or Open after Laparotomy (COOL) study will constitute a prospective randomized controlled trial that will randomly allocate eligible surgical patients intra-operatively to either formal closure of the fascia or use of the OA with application of an ANPTT dressing. Patients will be eligible if they have free uncontained intra-peritoneal contamination and physiologic derangements exemplified by septic shock OR a Predisposition-Infection-Response-Organ Dysfunction Score ≥ 3 or a World-Society-of-Emergency-Surgery-Sepsis-Severity-Score ≥ 8. The primary outcome will be 90-day survival. Secondary outcomes will be logistical, physiologic, safety, bio-mediators, microbiological, quality of life, and health-care costs. Secondary outcomes will include days free of ICU, ventilation, renal replacement therapy, and hospital at 30 days from the index laparotomy. Physiologic secondary outcomes will include changes in intensive care unit illness severity scores after laparotomy. Bio-mediator outcomes for participating centers will involve measurement of interleukin (IL)-6 and IL-10, procalcitonin, activated protein C (APC), high-mobility group box protein-1, complement factors, and mitochondrial DNA. Economic outcomes will comprise standard costing for utilization of health-care resources. Discussion: Although facial closure after SCIAS is considered the current standard of care, many reports are suggesting that OA management may improve outcomes in these patients. This trial will be powered to demonstrate a mortality difference in this highly lethal and morbid condition to ensure critically ill patients are receiving the best care possible and not being harmed by inappropriate therapies based on opinion only. Trial registration: ClinicalTrials.gov, NCT03163095.

[Ventilator associated acute lung injury]. / Daño pulmonar agudo asociado a ventilación mecánica.

Mechanical ventilation plays a central role in the critical care setting; but its use is closely related with some life threatening complications as nosocomial pneumonia and low cardiac performance. One of the most severe complications is called ventilator-associated lung injury (VALI) and it includes: Barotrauma, volutrauma, atelectrauma, biotrauma and oxygen-mediated toxic effects and it is related with an inflammatory response secondary to the stretching and recruitment process of alveoli within mechanical ventilation. The use of some protective ventilatory strategies has lowered the mortality rate 10% approximately.

[Myocardial depression in a patient with celiac disease. A clinical case report and literature review]. / Depresión miocárdica en un enfermo con esprue celiaco. Reporte de un caso y revisión de la literatura.

We report an autoinmune myocarditis case as a complication of celiac disease in a 28 year old woman. She had a 15 month history or diarrhea. She suffered pelvic trauma due to an episode of syncope and was admitted with refractory shock to fluid repletion. At laparotomy, two moderate hematomas were found in the subcutaneous space and retroperitoneum. Later she developed hemodynamic instability requiring positioning of a Swan-Ganz pulmonary artery catheter that demonstrated pattern of cardiogenic shock. Echocardiography demonstrated dilation of all four cavities and 35% ejection fraction. Dobutamine and milrinone infusion was begun. Later, a new echocardiographic study show improvement in eyection fraction. She was discharged without complications.

[Alveolar epithelial barrier in patients with acute respiratory distress syndrome (ARDS)]. / La barrera epitelial alveolar en el enfermo con síndrome de dificultad respiratoria aguda (SDRA).

The clearance of alveolar fluid depends on the anatomic and physiologic integrity of alveolar epithelial barrier. The vectorial transport of sodium begins at the apical surface in the type II cell through amiloride-sensitive sodium channel. Sodium is pumping by Na, K-ATPasa from the basolateral surface of type II cell to the interstice. Water passes through specialized channels in the type I cell membrane by the osmotic gradient created by sodium. The activity of the sodium transporters is regulated actively by genetics and depends on molecular processes that involve the hormonal stimulation. The damage to the epithelial membrane produces an increased of the permeability of great molecules, which favors generation of edema in the alveolar space, delay in the resolution and incapacity to regenerate epithelium. More clinic trials are required to demonstrate the paper of the transport of chloride and to clarify the true function of the specialized water channels in the regulation of the alveolar fluid clearance.

[Pontine myelinolysis after a hypoglycemic episode]. / Mielinólisis pontina después de un evento de hipoglucemia.

A case of central pontine myelinolysis following hypoglycemia is reported. The case was a 26- year-old female. Diabetes mellitus was found when she was 8 years old and she has hypertension and renal failure. She suffered a severe hypoglycemia at an unknown time. After the episode she developed a vegetative state. A magnetic resonance scan showed features consistent with the presence of central pontine myelinolysis.

The efficacy of computer-enabled discharge communication interventions: a systematic review.

CONTEXT: Traditional manual/dictated discharge summaries are inaccurate, inconsistent and untimely. Computer-enabled discharge communications may improve information transfer by providing a standardised document that immediately links acute and community healthcare providers. OBJECTIVE: To conduct a systematic review evaluating the efficacy of computer-enabled discharge communication compared with traditional communication for patients discharged from acute care hospitals. DATA SOURCES: MEDLINE, EMBASE, Cochrane CENTRAL Register of Controlled Trials and MEDLINE In-Process. Keywords from three themes were combined: discharge communication, electronic/online/web-based and controlled interventional studies. STUDY SELECTION: Study types included: clinical trials, quasiexperimental studies with concurrent controls and controlled before--after studies. Interventions included: (1) automatic population of a discharge document by computer database(s); (2) transmission of discharge information via computer technology; or (3) computer technology providing a 'platform' for dynamic discharge communication. Controls included: no intervention or traditional manual/dictated discharge summaries. Primary outcomes included: mortality, readmission and adverse events/near misses. Secondary outcomes included: timeliness, accuracy, quality/completeness and physician/patient satisfaction. DATA EXTRACTION: Description of interventions and study outcomes were extracted by two independent reviewers. RESULTS: 12 unique studies were identified: eight randomised controlled trials and four quasi-experimental studies. Pooling/meta-analysis was not possible, given the heterogeneity of measures and outcomes reported. The primary outcomes of mortality and readmission were inconsistently reported. There was no significant difference in mortality, and one study reported reduced long-term readmission. Intervention groups experienced reductions in perceived medical errors/adverse events, and improvements in timeliness and physician/patient satisfaction. CONCLUSIONS: Computer-enabled discharge communications appear beneficial with respect to a number of important secondary outcomes. Primary outcomes of mortality and readmission are less commonly reported in this literature and require further study.

Daño pulmonar agudo asociado a ventilación mecánica / Ventilator associated acute lung injury

Mechanical ventilation plays a central role In the critical care setting; but its use is closely related with some life threatening complications as nosocomial pneumonia and low cardiac performance. One of the most severe complications is called ventilator-associated lung injury (VALI) and it includes: Barotrauma, volutrauma, atelectrauma, biotrauma and oxygen-mediated toxic effects and it is related with an inflammatory response secondary to the stretching and recruitment process of alveoli within mechanical ventilation. The use of some protective ventilatory strategies has lowered the mortality rate 10% approximately.

La importancia de la asistencia mecánica ventilatoria (AMV) en la Unidad de Cuidados Intensivos (UCI) es indiscutible; sin embargo, su uso está ligado con complicaciones como neumonía nosocomial y deterioro del rendimiento cardiaco, que en algunas ocasiones ponen en peligro la vida del enfermo. Una de las complicaciones más graves es el daño pulmonar asociado a la ventilación mecánica (DPVM). El DPVM se caracteriza por la presencia de edema pulmonar rico en proteínas. Se recomienda establecer cierto número de estrategias de protección pulmonar (EPP) para prevenir este tipo de lesión. Una vez instituidas, las EPP han demostrado una disminución de la mortalidad de aproximadamente 10%.