A Framework for Developing a Multidisciplinary Approach to Prone Positioning in Acute Respiratory Distress Syndrome.

Prone position ventilation (PPV) is one of the few interventions with a proven mortality benefit in the management of acute respiratory distress syndrome (ARDS), yet it is underutilized as demonstrated by multiple large observational studies. Significant barriers to its consistent application have been identified and studied. But the complex interplay of a multidisciplinary team makes its consistent application challenging. We present a framework of multidisciplinary collaboration that identifies the appropriate patients for this intervention and discuss our institutional experience applying a multidisciplinary team to implement prone position (PP) leading up to and through the current COVID-19 pandemic. We also highlight the role of such multidisciplinary teams in the effective implementation of prone positioning in ARDS throughout a large health care system. We emphasize the importance of proper selection of patients and provide guidance on how a protocolized approach can be utilized for proper patient selection.

Mortality associated with acute respiratory distress syndrome, 2009-2019: a systematic review and meta-analysis.

Background: Acute respiratory distress syndrome (ARDS) occurs commonly in intensive care units. The reported mortality rates in studies evaluating ARDS are highly variable. Objective: To investigate mortality rates due to ARDS from before the 2009 H1N1 influenza pandemic began until the start of coronavirus disease 2019 (COVID-19) pandemic. Design: We performed a systematic search and then ran a proportional meta-analysis for mortality. We ran our analysis in three ways: for randomised controlled trials only, for observational studies only, and for randomised controlled trials and observational studies combined. Data sources: MEDLINE and Embase, using a highly sensitive criterion and limiting the search to studies published from January 2009 to December 2019. Review methods: Two of us independently screened titles and abstracts to first identify studies and then complete full text reviews of selected studies. We assessed risk of bias using the Cochrane RoB-2 (a risk-of-bias tool for randomised trials) and the Cochrane ROBINS-1 (a risk-of-bias tool for non-randomised studies of interventions). Results: We screened 5844 citations, of which 102 fully met our inclusion criteria. These included 34 randomised controlled trials and 68 observational studies, with a total of 24 158 patients. The weighted pooled mortality rate for all 102 studies published from 2009 to 2019 was 39.4% (95% CI, 37.0-41.8%). Mortality was higher in observational studies compared with randomised controlled trials (41.8% [95% CI, 38.9-44.8%] v 34.5% [95% CI, 30.6-38.5%]; P = 0.005). Conclusions: Over the past decade, mortality rates due to ARDS were high. There is a clear distinction between mortality in observational studies and in randomised controlled trials. Future studies need to report mortality for different ARDS phenotypes and closely adhere to evidence-based medicine. PROSPERO registration: CRD42020149712 (April 2020).

Submarine mud volcanoes as a source of chromophoric dissolved organic matter to the deep waters of the Gulf of Cádiz.

Seafloor structures related to the emission of different fluids, such as submarine mud volcanoes (MVs), have been recently reported to largely contribute with dissolved organic matter (DOM) into the oceans. Submarine MVs are common structures in the Gulf of Cádiz. However, little is known about the biogeochemical processes that occur in these peculiar environments, especially those involving DOM. Here, we report DOM characterization in the sediment pore water of three MVs of the Gulf of Cádiz. Estimated benthic fluxes of dissolved organic carbon (DOC) and chromophoric DOM (CDOM) were higher than in other marine sediments with an average of 0.11 ± 0.04 mmol m-2 d-1 for DOC and ranging between 0.11 and 2.86 m-1 L m-2 d-1, for CDOM. Protein-like components represented ~ 70% of the total fluorescent DOM (FDOM). We found that deep fluids migration from MVs (cold seeps) and anaerobic production via sulfate-reducing bacteria represent a source of DOC and FDOM to the overlying water column. Our results also indicate that fluorescent components can have many diverse sources not captured by common classifications. Overall, MVs act as a source of DOC, CDOM, and FDOM to the deep waters of the Gulf of Cádiz, providing energy to the microbial communities living there.

Base eletrônica de dados clínicos e cirúrgicos em isquemia cronica de membros inferiores / Electronic clinical and surgical database in chronic lower limb ischemia

CONTEXTO: Um sistema eletrônico de protocolo seria capaz de armazenar dados clínicos e possibilitar futuras pesquisas, visando a rapidez, eficiência de cruzamentos e análise de tais dados. OBJETIVO: a) criar uma base de dados clínicos cirúrgicos em doenças vasculares e, a partir desta, uma base em Isquemia Crônica de Membros Inferiores; b) informatizar essa base sob forma de um protocolo eletrônico; c) incorporar ao SINPE(c) (Sistema Integrado de Protocolos Eletrônicos); d) realizar um projeto piloto. MÉTODOS: Criou-se uma base teórica de dados clínicos sobre as doenças vasculares. O protocolo específico foi criado considerando-se as características individuais das doenças causadoras de Isquemia Crônica de Membros Inferiores. Após seu término, essa base eletrônica e informatizada seria incorporada ao SINPE(c). RESULTADOS: O usuário, previamente cadastrado, realizará o cadastro do paciente e selecionará, dentro do protocolo mestre, o protocolo específico em Isquemia Crônica de Membros Inferiores, para acesso aos seus respectivos dados clínicos. Orientado pelas alternativas diretas de preenchimento, o usuário seleciona apenas os dados pertencentes ao seu paciente. Estes podem ser resgatados para pesquisa, mostrando o número de coletas que satisfazem os parâmetros escolhidos e informações estatísticas sobre a mesma. CONCLUSÃO: a) a criação da base teórica de dados clínicos e cirúrgicos em doenças vasculares e, a partir desta, em Isquemia Crônica de Membros Inferiores, foi factível; b) a informatização da base teórica sob forma de protocolo eletrônico foi exequível; c) o protocolo eletrônico mestre e específico poderá ser incorporado ao SINPE(c), d) o projeto piloto foi criado ...

BACKGROUND: Electronic medical record systems may optimize future studies by improving speed, as well as data comparison and analysis. OBJECTIVE: (a) To create a general database of clinical and surgical vascular diseases and select data from it to create a specific database of chronic lower limb ischemia; b) to store this database in the form of an electronic system; c) to incorporate this database into the Brazilian integrated electronic medical record system (SINPE(c)); and (d) to conduct a pilot study to test the system. METHODS: A general database of clinical vascular disease was created, and a specific system was developed to record the individual characteristics of the diseases that cause chronic ischemia of lower limbs. When completed, the database was incorporated into SINPE(c). RESULTS: For data collection, an authorized user enters patient data and creates a medical record for that patient. After that, chronic ischemia of lower limbs is selected in the master system to access clinical data. Aided by the autofill tool, the user selects only the data for that specific patient. Data may be retrieved for studies, to find out the number of entries that meet the chosen parameters, and to provide statistical information about them. CONCLUSION: (a) The theoretical database of clinical and surgical vascular diseases and the derived database of chronic lower limb ischemia were created; (b) the theoretical electronic database was created; c) the electronic medical records in both the master and the specific database were incorporated into SINPE(c), (d) the pilot study was successfully created and tested using the parser module of SINPE(c). .