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xmlns=\u0022http:\/\/www.w3.org\/1999\/xhtml\u0022 id=\u0022content-block-markup\u0022 xmlns:xhtml=\u0022http:\/\/www.w3.org\/1999\/xhtml\u0022\u003E\u003Cdiv class=\u0022article fulltext-view \u0022\u003E\u003Cspan class=\u0022highwire-journal-article-marker-start\u0022\u003E\u003C\/span\u003E\u003Cdiv class=\u0022section abstract\u0022 id=\u0022abstract-1\u0022\u003E\u003Ch2\u003ESummary\u003C\/h2\u003E\n            \u003Cp id=\u0022p-1\u0022\u003EThis article discusses advances in mechanical ventilation, advances in nonrespiratory critical care, recent developments in the treatment of acute respiratory distress syndrome, as well as several recent trials that addressed sepsis and resuscitation.\u003C\/p\u003E\n         \u003C\/div\u003E\u003Cul class=\u0022kwd-group\u0022\u003E\u003Cli class=\u0022kwd\u0022\u003ECritical Care Medicine\u003C\/li\u003E\u003Cli class=\u0022kwd\u0022\u003EAnesthesiology\u003C\/li\u003E\u003Cli class=\u0022kwd\u0022\u003ESepsis\/Septic Shock\u003C\/li\u003E\u003Cli class=\u0022kwd\u0022\u003EAcute Lung Injury \u0026amp; Respiratory Failure\u003C\/li\u003E\u003Cli class=\u0022kwd\u0022\u003ECritical Care Nursing\u003C\/li\u003E\u003C\/ul\u003E\u003Cul class=\u0022kwd-group clinical-trial\u0022\u003E\u003Cli class=\u0022kwd\u0022\u003ECritical Care Medicine\u003C\/li\u003E\u003Cli class=\u0022kwd\u0022\u003EAnesthesiology\u003C\/li\u003E\u003Cli class=\u0022kwd\u0022\u003ESepsis\/Septic Shock\u003C\/li\u003E\u003Cli class=\u0022kwd\u0022\u003EAcute Lung Injury \u0026amp; Respiratory Failure\u003C\/li\u003E\u003Cli class=\u0022kwd\u0022\u003ECritical Care\u003C\/li\u003E\u003Cli class=\u0022kwd\u0022\u003EPulmonary \u0026amp; Respiratory Medicine\u003C\/li\u003E\u003Cli class=\u0022kwd\u0022\u003ENursing\u003C\/li\u003E\u003C\/ul\u003E\u003Cdiv class=\u0022section\u0022 id=\u0022sec-1\u0022\u003E\n         \u003Ch2 class=\u0022\u0022\u003EMECHANICAL VENTILATION\u003C\/h2\u003E\n         \u003Cp id=\u0022p-2\u0022\u003ERobert Hyzy, MD, University of Michigan, Ann Arbor, Michigan, USA, discussed advances in mechanical ventilation. Nonbenzodiazepine sedatives propofol or dexmedetomidine have been preferred over benzodiazepine sedatives midazolam or lorazepam to improve clinical outcomes [Barr J et al. \u003Cem\u003ECrit Care Med.\u003C\/em\u003E 2013]. A definitive randomized controlled trial (RCT) comparing propofol and midazolam or lorazepam is unlikely, in light of a multicenter retrospective cohort study in which ventilated intensive care unit (ICU) patients who were sedated exclusively with propofol, midazolam, or lorazepam reported improved outcomes with propofol, including greater likelihood of ICU discharge and earlier discontinuation of ventilator use (\u003Ca id=\u0022xref-table-wrap-1-1\u0022 class=\u0022xref-table\u0022 href=\u0022#T1\u0022\u003ETable 1\u003C\/a\u003E) [Lonardo NW et al. \u003Cem\u003EAm J Respir Crit Care Med.\u003C\/em\u003E 2014].\u003C\/p\u003E\n         \u003Cdiv id=\u0022T1\u0022 class=\u0022table pos-float\u0022\u003E\u003Cdiv class=\u0022table-inline\u0022\u003E\u003Cdiv class=\u0022callout\u0022\u003E\u003Cspan\u003EView this table:\u003C\/span\u003E\u003Cul class=\u0022callout-links\u0022\u003E\u003Cli class=\u00220 first\u0022\u003E\u003Ca href=\u0022\/\u0022 class=\u0022table-expand-inline\u0022 data-table-url=\u0022\/highwire\/markup\/15512\/expansion?postprocessors=highwire_figures%2Chighwire_math%2Chighwire_inline_linked_media%2Chighwire_embed\u0026amp;table-expand-inline=1\u0022 html=\u00221\u0022 fragment=\u0022#\u0022 external=\u00221\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003EView inline\u003C\/a\u003E\u003C\/li\u003E\u003Cli class=\u00221\u0022\u003E\u003Ca href=\u0022\/highwire\/markup\/15512\/expansion?width=1000\u0026amp;height=500\u0026amp;iframe=true\u0026amp;postprocessors=highwire_figures%2Chighwire_math%2Chighwire_inline_linked_media\u0022 class=\u0022colorbox colorbox-load table-expand-popup\u0022 rel=\u0022gallery-fragment-tables\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003EView popup\u003C\/a\u003E\u003C\/li\u003E\u003Cli class=\u00222 last\u0022\u003E\u003Ca href=\u0022\/highwire\/powerpoint\/15512\u0022 class=\u0022highwire-figure-link highwire-figure-link-ppt\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003EDownload powerpoint\u003C\/a\u003E\u003C\/li\u003E\u003C\/ul\u003E\u003C\/div\u003E\u003C\/div\u003E\u003Cdiv class=\u0022table-caption\u0022\u003E\u003Cspan class=\u0022table-label\u0022\u003ETable 1.\u003C\/span\u003E \n               \u003Cp id=\u0022p-3\u0022 class=\u0022first-child\u0022\u003EOutcomes With Propofol\u003C\/p\u003E\n            \u003Cdiv class=\u0022sb-div caption-clear\u0022\u003E\u003C\/div\u003E\u003C\/div\u003E\u003C\/div\u003E\n         \u003Cp id=\u0022p-7\u0022\u003EFor oxygen ventilation in acute respiratory distress syndrome (ARDS), lower saturation has been associated with worse cognitive outcome, while a higher than necessary level of oxygen can worsen lung inflammation [Aggarwal NR, Brower RG. \u003Cem\u003EAnn Am Thorac Soc.\u003C\/em\u003E 2014]. The use of a conservative strategy of oxygen ventilation was linked with a trend to lower lactate and reduced failure of nonpulmonary organs [Suzuki S et al. \u003Cem\u003ECrit Care Med.\u003C\/em\u003E 2014]. The single-center nature of the study and small number of patients prevent any definitive conclusion. An RCT would be helpful.\u003C\/p\u003E\n         \u003Cp id=\u0022p-8\u0022\u003EA recent study involving 20 patients indicated that draining of pleural effusions improves oxygenation via increased lung volume and decreased transpulmonary pressure, although the benefit was less pronounced with ARDS patients [Razazi K et al. \u003Cem\u003EAnn Am Thorac Soc.\u003C\/em\u003E 2014].\u003C\/p\u003E\n         \u003Cp id=\u0022p-9\u0022\u003EFinally, an RCT involving 105 patients provided evidence that a nasally delivered elevated oxygen level provides better oxygenation and improves patient outcome compared with the use of a ventilation mask [Maggiore SM et al. \u003Cem\u003EAm J Respir Crit Care Med.\u003C\/em\u003E 2014].\u003C\/p\u003E\n      \u003C\/div\u003E\u003Cdiv class=\u0022section\u0022 id=\u0022sec-2\u0022\u003E\n         \u003Ch2 class=\u0022\u0022\u003ESEPSIS AND RESUSCITATION\u003C\/h2\u003E\n         \u003Cp id=\u0022p-10\u0022\u003ESteven Simpson, MD, University of Kansas Medical Center, Kansas City, Kansas, USA, discussed several recent trials that addressed sepsis and resuscitation. The multicenter, randomized controlled Protocolized Care for Early Septic Shock trial [ProCESS; ProCESS Investigators. \u003Cem\u003EN Engl J Med.\u003C\/em\u003E 2014] was undertaken to investigate the need for central lines for hemodynamic and central venous oxygen saturation (ScvO\u003Csub\u003E2\u003C\/sub\u003E) monitoring, and the need for protocol-determined care.\u003C\/p\u003E\n         \u003Cp id=\u0022p-11\u0022\u003EThe 1341 patients were randomized to receive early goal-directed therapy (EGDT; n = 439), a standard therapy protocol (n = 446), and usual care (n = 456). The three arms were comparable at baseline in demographics, source of sepsis, and other clinical aspects. The primary outcome was 60-day all-cause mortality. Secondary outcomes included 90-day all-cause mortality, 90-day and 1-year cumulative mortality, length of stay in the hospital and the ICU, duration of shock, acute respiratory failure, acute renal failure, and hospital discharge disposition.\u003C\/p\u003E\n         \u003Cp id=\u0022p-12\u0022\u003EThe primary end point did not differ significantly among the study arms (log-rank \u003Cem\u003EP\u003C\/em\u003E = .52). Outcomes were similar with the exception of a greater rate of ICU admission in those receiving EGDT (\u003Cem\u003EP\u003C\/em\u003E = .01).\u003C\/p\u003E\n         \u003Cp id=\u0022p-13\u0022\u003EThe randomized, controlled Australasian Resuscitation in Sepsis Evaluation trial [ARISE; ARISE Investigators. \u003Cem\u003EN Engl J Med.\u003C\/em\u003E 2014] was done to assess the value of EGDT in decreasing mortality in patients with septic shock. The 1600 patients enrolled at 51 centers were randomized to receive EGDT (n = 796) or usual care (n = 804). The primary outcome was 90-day all-cause mortality, and there were multiple secondary and tertiary outcomes. Analyses were conducted in the intention-to-treat population. The study arms were comparable at baseline.\u003C\/p\u003E\n         \u003Cp id=\u0022p-14\u0022\u003EPatients in the EGDT group received more intravenous fluids in the first 6 hours after randomization than patients treated with usual care (1964 \u00b1 1415 mL vs 1713 \u00b1 1401 mL; \u003Cem\u003EP\u003C\/em\u003E \u0026lt; .001). EGDT patients were more likely to receive vasopressor infusions (66.6% vs 57.8%), red-cell transfusions (13.6% vs 7.0%), and dobutamine (15.4% vs 2.6%) (\u003Cem\u003EP\u003C\/em\u003E for all, \u003Cem\u003EP\u003C\/em\u003E \u0026lt; .001).\u003C\/p\u003E\n         \u003Cp id=\u0022p-15\u0022\u003EThe primary outcome was comparable between the groups (\u003Ca id=\u0022xref-table-wrap-2-1\u0022 class=\u0022xref-table\u0022 href=\u0022#T2\u0022\u003ETable 2\u003C\/a\u003E), meaning that EGDT did not reduce all-cause mortality. There was no significant difference in survival time, in-hospital mortality, duration of organ support, or length of hospital stay.\u003C\/p\u003E\n         \u003Cdiv id=\u0022T2\u0022 class=\u0022table pos-float\u0022\u003E\u003Cdiv class=\u0022table-inline\u0022\u003E\u003Cdiv class=\u0022callout\u0022\u003E\u003Cspan\u003EView this table:\u003C\/span\u003E\u003Cul class=\u0022callout-links\u0022\u003E\u003Cli class=\u00220 first\u0022\u003E\u003Ca href=\u0022\/\u0022 class=\u0022table-expand-inline\u0022 data-table-url=\u0022\/highwire\/markup\/15513\/expansion?postprocessors=highwire_figures%2Chighwire_math%2Chighwire_inline_linked_media%2Chighwire_embed\u0026amp;table-expand-inline=1\u0022 html=\u00221\u0022 fragment=\u0022#\u0022 external=\u00221\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003EView inline\u003C\/a\u003E\u003C\/li\u003E\u003Cli class=\u00221\u0022\u003E\u003Ca href=\u0022\/highwire\/markup\/15513\/expansion?width=1000\u0026amp;height=500\u0026amp;iframe=true\u0026amp;postprocessors=highwire_figures%2Chighwire_math%2Chighwire_inline_linked_media\u0022 class=\u0022colorbox colorbox-load table-expand-popup\u0022 rel=\u0022gallery-fragment-tables\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003EView popup\u003C\/a\u003E\u003C\/li\u003E\u003Cli class=\u00222 last\u0022\u003E\u003Ca href=\u0022\/highwire\/powerpoint\/15513\u0022 class=\u0022highwire-figure-link highwire-figure-link-ppt\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003EDownload powerpoint\u003C\/a\u003E\u003C\/li\u003E\u003C\/ul\u003E\u003C\/div\u003E\u003C\/div\u003E\u003Cdiv class=\u0022table-caption\u0022\u003E\u003Cspan class=\u0022table-label\u0022\u003ETable 2.\u003C\/span\u003E \n               \u003Cp id=\u0022p-16\u0022 class=\u0022first-child\u0022\u003EPrimary Outcome of 90-Day All-Cause Mortality in ARISE\u003C\/p\u003E\n            \u003Cdiv class=\u0022sb-div caption-clear\u0022\u003E\u003C\/div\u003E\u003C\/div\u003E\u003C\/div\u003E\n         \u003Cp id=\u0022p-18\u0022\u003EThe negative results of ProCESS and ARISE do not represent the final word on EGDT, for a number of interrelated reasons. The patients studied in both trials had lower measured lactate and higher ScvO\u003Csub\u003E2\u003C\/sub\u003E than in the original EGDT trial, and Acute Physiology and Chronic Health Evaluation II scores were lower in the ARISE trial. Among the patients in the EGDT arm of both studies, the average ScvO\u003Csub\u003E2\u003C\/sub\u003E was 71%; for the substantial proportion of patients with ScvO\u003Csub\u003E2\u003C\/sub\u003E measures above 70%, the protocol did not specify therapeutic actions. In other words, these patients defaulted to usual or standard care. It would therefore be difficult to demonstrate differences between this group and the group with intended standard care, requiring significantly more patients than were studied in either trial. Neither trial reports whether there were benefits to EGDT in the patients whose measured baseline ScvO\u003Csub\u003E2\u003C\/sub\u003E was under 70%.\u003C\/p\u003E\n         \u003Cp id=\u0022p-19\u0022\u003EThe multicenter, open-label ALBIOS trial [Caironi P et al. \u003Cem\u003EN Engl J Med.\u003C\/em\u003E 2014] assessed the value of albumin replacement in patients with severe sepsis or septic shock. The \u2265 1800 patients treated at 100 ICUs were randomized to 20% albumin + crystalloid solution or crystalloid solution alone. The target serum albumin was \u2265 30 g\/L. The primary outcome was 28-day all-cause mortality; secondary outcomes were 90-day all-cause mortality, organ dysfunctions, and length of hospital and ICU stay.\u003C\/p\u003E\n         \u003Cp id=\u0022p-20\u0022\u003EPatients receiving albumin had a higher 7-day mean arterial pressure (\u003Cem\u003EP\u003C\/em\u003E = .03) and lower net fluid balance (\u003Cem\u003EP\u003C\/em\u003E \u0026lt; .001). However, the total daily amount of administered fluid was comparable between groups (\u003Cem\u003EP\u003C\/em\u003E = .10), as was the primary outcome and the 90-day all-cause mortality. Thus, albumin replacement did not appear to be of value in aiding survival.\u003C\/p\u003E\n      \u003C\/div\u003E\u003Cdiv class=\u0022section\u0022 id=\u0022sec-3\u0022\u003E\n         \u003Ch2 class=\u0022\u0022\u003ENONRESPIRATORY CRITICAL CARE\u003C\/h2\u003E\n         \u003Cp id=\u0022p-21\u0022\u003EDavid L. Bowton, MD, Wake Forest University Baptist Health, Winston-Salem, North Carolina, USA, discussed advances in nonrespiratory critical care. A number of recent studies including ProCESS and ARISE have the potential to inform the care of patients with severe sepsis and septic shock.\u003C\/p\u003E\n         \u003Cp id=\u0022p-22\u0022\u003ETwo retrospective observational studies assessed the amount and timing of use of vasopressors and fluids on hospital mortality. The CATTS study of 2849 patients from 24 ICUs chronicled decreased mortality when vaso-active agents were commenced 1 to 6 hours after onset of septic shock, especially when fluids were applied within the first hour [Waechter J et al. \u003Cem\u003ECrit Care Med.\u003C\/em\u003E 2014]. Another study of 651 patients with severe sepsis and septic shock revealed a survival benefit in those receiving fluid resuscitation within 3 hours of ICU admission [Lee SJ et al. \u003Cem\u003EChest\u003C\/em\u003E. 2014].\u003C\/p\u003E\n         \u003Cp id=\u0022p-23\u0022\u003EA trio of studies collectively involving \u2265 13 000 patients reported the association of hyperchloremia and the use of normal saline rather than balanced crystalloids with higher mortality and incidence of renal failure [McCluskey SA et al. \u003Cem\u003EAnesth Analg\u003C\/em\u003E. 2013; Shaw AD et al. \u003Cem\u003EAnn Surg\u003C\/em\u003E. 2012; Yunos NM et al. \u003Cem\u003EJAMA\u003C\/em\u003E. 2012]. However, in a study of the effects of balanced vs nonbalanced fluids, a propensity-matched cohort of 6730 patients (of 53448 patients total) reported a lower risk of in-hospital mortality in adult patients critically ill with sepsis who were resuscitated with balanced fluids [Raghunathan K et al. \u003Cem\u003ECrit Care Med.\u003C\/em\u003E 2014].\u003C\/p\u003E\n         \u003Cp id=\u0022p-24\u0022\u003EA multicenter, open-label study involving 776 patients addressed resuscitation in septic shock from the standpoint of blood pressure [Asfar P et al. \u003Cem\u003EN Engl J Med.\u003C\/em\u003E 2014]. Patients were randomized to a mean arterial pressure target of 80 to 85 mmHg (high-target; n = 388) or 65 to 70 mmHg (low target; n = 388). There was no difference in the primary end point of 28-day mortality, although high-target patients with chronic hypertension required less renal replacement therapy.\u003C\/p\u003E\n         \u003Cp id=\u0022p-25\u0022\u003EIf definitive conclusions cannot yet be reached, the data highlight the importance of every hospital having a treatment process, with clear goals and treatments.\u003C\/p\u003E\n         \u003Cp id=\u0022p-26\u0022\u003EThe final topic addressed by Dr Bowton was parenteral vs enteral nutrition. The CALORIES trial [Harvey SE et al. \u003Cem\u003EN Engl J Med.\u003C\/em\u003E 2014] of 2400 patients in the United Kingdom found no difference in outcome between the study arms in terms of 30-day all-cause mortality. The MetaPlus prospective randomized clinical trial [van Zanten ARH et al. \u003Cem\u003EJAMA\u003C\/em\u003E. 2014] of 301 adult, mechanically ventilated patients who required enteral nutrition for over 72 hours reported no difference between high-protein enteral nutrition with immune-modulating nutrients and standard high-protein enteral nutrition concerning infectious complications, with possible increased mortality for the immune-modulating regimen. The studies support the view that the route of feeding is not as important as was previously thought; patients should be fed with nutrition that is tolerable and cost-effective, as full caloric feeding has shown little value.\u003C\/p\u003E\n      \u003C\/div\u003E\u003Cdiv class=\u0022section\u0022 id=\u0022sec-4\u0022\u003E\n         \u003Ch2 class=\u0022\u0022\u003EARDS\u003C\/h2\u003E\n         \u003Cp id=\u0022p-27\u0022\u003EArthur Wheeler, MD, Vanderbilt University, Nashville, Tennessee, USA, reviewed recent developments in the treatment of ARDS. The multicenter, double-blind SAILS trial [National Heart, Lung, and Blood Institute ARDS Clinical Trials Network. \u003Cem\u003EN Engl J Med.\u003C\/em\u003E 2014] involving 745 patients with sepsis-associated ARDS evaluated rosuvastatin vs placebo. The trial was stopped for futility, with no difference between the groups in the assessed outcomes. Similarly, the double-blind HARP-2 trial [McAuley DF et al. \u003Cem\u003EN Engl J Med.\u003C\/em\u003E 2014] involving 540 patients reported no appreciable difference between treatment with simvastatin and placebo concerning the primary outcome of ventilator-free days and secondary outcomes of organ failure-free days and 28-day mortality. Other trials have indicated the futility of statins for prevention of ARDS, or treatment of ventilator-associated pneumonia [Yadav H et al. \u003Cem\u003EAnesth Analg\u003C\/em\u003E. 2014; Papzian L et al. \u003Cem\u003EJAMA\u003C\/em\u003E. 2013].\u003C\/p\u003E\n         \u003Cp id=\u0022p-28\u0022\u003EInterestingly, it is possible that patients with worse clinical outcomes due to more severe inflammation, shock, and metabolic acidosis - a hyperinflammatory phenotype - may be more receptive to positive end-expiratory pressure (PEEP) therapy [Calfee CS et al. \u003Cem\u003ELancet Respir Med.\u003C\/em\u003E 2014]. In a related study, patients with an increase in the ratio of partial pressure of oxygen in arterial blood to fraction of inspired oxygen after a transient increase in PEEP may have a survival advantage, potentially leading to a bedside maneuver to identify patients with a better prognosis [Goligher EC et al. \u003Cem\u003EAm J Respir Crit Care Med.\u003C\/em\u003E 2014].\u003C\/p\u003E\n         \u003Cp id=\u0022p-29\u0022\u003ETwo meta-analyses suggest use of prone positioning may be advantageous, especially in ARDS patients receiving protective lung ventilation [Lee JM et al. \u003Cem\u003ECrit Care Med.\u003C\/em\u003E 2014; Sud S et al. \u003Cem\u003ECMAJ\u003C\/em\u003E. 2014; Gu\u00e9rin C et al. \u003Cem\u003EN Engl J Med.\u003C\/em\u003E 2013], which is consistent with the benefits of lower tidal volume.\u003C\/p\u003E\n         \u003Cp id=\u0022p-30\u0022\u003EWhile there have been advances in care of ARDS patients and improvements in outcome, accumulating data indicate that ARDS survivors remain sick for a long time and in some respects, ARDS may essentially be a life sentence.\u003C\/p\u003E\n      \u003C\/div\u003E\u003Cul class=\u0022copyright-statement\u0022\u003E\u003Cli class=\u0022fn\u0022 id=\u0022copyright-statement-1\u0022\u003E\u00a9 2014 MD Conference Express\u00ae\u003C\/li\u003E\u003C\/ul\u003E\u003Cspan class=\u0022highwire-journal-article-marker-end\u0022\u003E\u003C\/span\u003E\u003C\/div\u003E\u003Cspan id=\u0022related-urls\u0022\u003E\u003C\/span\u003E\u003C\/div\u003E\u003Ca href=\u0022http:\/\/mdc.sagepub.com\/content\/14\/45\/18.abstract\u0022 class=\u0022hw-link hw-link-article-abstract\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003EView Summary\u003C\/a\u003E\u003C\/div\u003E  \u003C\/div\u003E\n\n  \n  \u003C\/div\u003E\n\u003C\/div\u003E\n  \u003C\/div\u003E\n\u003C\/div\u003E\n\u003C\/div\u003E\u003Cscript type=\u0022text\/javascript\u0022 src=\u0022http:\/\/mdc.sagepub.com\/sites\/all\/modules\/highwire\/highwire\/plugins\/highwire_markup_process\/js\/highwire_openurl.js?nzoia2\u0022\u003E\u003C\/script\u003E\n\u003Cscript type=\u0022text\/javascript\u0022 src=\u0022http:\/\/mdc.sagepub.com\/sites\/all\/modules\/highwire\/highwire\/plugins\/highwire_markup_process\/js\/highwire_tables.js?nzoia2\u0022\u003E\u003C\/script\u003E\n\u003C\/body\u003E\u003C\/html\u003E"}