Abstract:
OBJECTIVE:To determine the relationship between sublingual and intestinal mucosal microcirculatory perfusion. DESIGN:Observational, experimental study. SETTING:University-affiliated large animal laboratory. SUBJECTS:Ten fasted, anesthetized, mechanically ventilated, male pigs randomized to a sham group (n = 3) or to a hyperdynamic septic shock group (n = 7) in which cholangitis was induced by direct infusion of Escherichia coli into the common bile duct. This model was developed because it is not accompanied by changes in intra-abdominal pressure. MEASUREMENTS AND MAIN RESULTS:The sublingual and intestinal microcirculations were simultaneously assessed at 4-hr intervals for up to 12 hrs with a modified orthogonal polarization spectral device and functional microvessel density and erythrocyte velocity were measured quantitatively. In sham animals, both regions maintained a stable functional microvessel density and erythrocyte velocity throughout the study period. In contrast, in septic animals, already after 4 hrs of sepsis, functional microvessel density was markedly decreased (>50%) in the sublingual and gut regions; mean erythrocyte velocity decreased dramatically and similarly in both regions, from 1022 +/- 80 to 265 +/- 43 mum/sec in the sublingual region and from 1068 +/- 45 to 243 +/- 115 mum/sec in the gut (p < 0.001, at T12). There was a significant correlation between the sublingual and gut microcirculations in septic animals (r = 0.92, p < 0.0001). CONCLUSIONS:The severity and the time course of microcirculatory changes were similar in the sublingual and in the gut region in this clinically relevant model of severe sepsis. These findings support the sublingual region as an appropriate region to monitor the microcirculation in sepsis.
journal_name
Crit Care Medjournal_title
Critical care medicineauthors
Verdant CL,De Backer D,Bruhn A,Clausi CM,Su F,Wang Z,Rodriguez H,Pries AR,Vincent JLdoi
10.1097/CCM.0b013e3181b029c1subject
Has Abstractpub_date
2009-11-01 00:00:00pages
2875-81issue
11eissn
0090-3493issn
1530-0293journal_volume
37pub_type
杂志文章abstract:OBJECTIVES:To determine the frequency of advance directives or directives disclosed by healthcare agents and their influence on decisions to withdraw/withhold life-sustaining care in neurocritically ill adults. DATA SOURCES:PubMed, Embase, and Cochrane databases. STUDY SELECTION:Screening was performed using predefin...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000004388
更新日期:2020-08-01 00:00:00
abstract:OBJECTIVE:To determine whether partial liquid ventilation (PLV) affects the risk of nosocomial pneumonia. STUDY DESIGN:To assess in vitro bacterial adhesion and viability after liquid perfluorocarbon exposure and to assess bacterial recovery after partial liquid ventilation in vivo in rabbits. SETTING:University anim...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199912000-00023
更新日期:1999-12-01 00:00:00
abstract:OBJECTIVE:Despite concern over the appropriateness and quality of care provided in an intensive care unit (ICU) at the end of life, the number of Americans who receive ICU care at the end of life is unknown. We sought to describe the use of ICU care at the end of life in the United States using hospital discharge data ...
journal_title:Critical care medicine
pub_type: 杂志文章,多中心研究
doi:10.1097/01.ccm.0000114816.62331.08
更新日期:2004-03-01 00:00:00
abstract:OBJECTIVE:Cardiogenic shock remains an important therapeutic challenge, with high in-hospital mortality rates. Mechanical circulatory support may be beneficial in these patients. Since the efficacy of the intra-aortic balloon pump seems limited, new percutaneously placed mechanical left ventricular support devices, suc...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e31821e89b5
更新日期:2011-09-01 00:00:00
abstract:OBJECTIVE:We sought to investigate if the chloride content of fluids used in resuscitation was associated with short- and long-term outcomes. DESIGN:We identified patients who received large-volume fluid resuscitation, defined as greater than 60 mL/kg over a 24-hour period. Chloride load was determined for each patien...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000002063
更新日期:2017-02-01 00:00:00
abstract:OBJECTIVE:To investigate whether inhibition of cyclooxygenase-2, a critical component of the inflammatory pathway, is neuroprotective in a neonatal rat model of cerebral hypoxia-ischemia. The development of brain inflammation largely contributes to neonatal brain injury that may lead to a lifetime of neurologic deficit...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e3181cb1158
更新日期:2010-02-01 00:00:00
abstract:OBJECTIVE:Our intent was to evolve a prognosticator that would predict the likelihood that an electrical shock would restore a perfusing rhythm. Such a prognosticator was to be based on conventional electrocardiographic signals but without constraints caused by artifacts resulting from precordial compression. The adver...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-200112000-00019
更新日期:2001-12-01 00:00:00
abstract::In a prospective 30-month study of nosocomial infections in a pediatric ICU (PICU), the incidence, sites, and causes of infection were determined. Factors associated with increased risk of infection were investigated. In 1,388 patients who remained in the PICU for a minimum of 72 h, 116 infections occurred (6.1 infect...
journal_title:Critical care medicine
pub_type: 杂志文章,评审
doi:10.1097/00003246-198803000-00005
更新日期:1988-03-01 00:00:00
abstract:OBJECTIVE:To improve control of blood glucose concentrations in critically ill patients through use of a bedside, nurse-managed, intravenous insulin nomogram. DESIGN:Retrospective, before-after cohort study. SETTING:Fifteen-bed mixed medical/surgical intensive care unit in a tertiary, teaching hospital. PATIENTS:A t...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-200109000-00010
更新日期:2001-09-01 00:00:00
abstract:OBJECTIVES:To explore the effects of dobutamine and norepinephrine on the global cardiovascular response and on the relationship between oxygen uptake (VO2) and oxygen delivery (DO2) during an acute reduction in blood flow associated with tamponade. DESIGN:Prospective, randomized, controlled acute intervention study. ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199402000-00022
更新日期:1994-02-01 00:00:00
abstract:OBJECTIVE:The Acute Respiratory Distress Syndrome Network protocol recommends limiting tidal volume and plateau pressure; it also recommends increasing respiratory rate to prevent hypercapnia. We tested a strategy that combines the low tidal volume with lower respiratory rates and minimally invasive CO2 removal. SUBJE...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000000312
更新日期:2014-06-01 00:00:00
abstract::Disseminated intravascular coagulation (DIC) is an acquired syndrome characterized by intravascular fibrin formation occurring in the course of a variety of severe diseases. In gram-negative sepsis, endotoxin is the bacterial component eliciting a cascade of tissue factor dependent hypercoagulable reactions mediated b...
journal_title:Critical care medicine
pub_type: 杂志文章,评审
doi:10.1097/00003246-200009001-00003
更新日期:2000-09-01 00:00:00
abstract:OBJECTIVES:Prone-position ventilation (PPV) induces acute improvement in oxygenation in many patients with acute respiratory distress syndrome (ARDS), with some maintaining their oxygenation even after they were returned to the supine position, but it is unclear what clinical factors determine the sustained oxygenation...
journal_title:Critical care medicine
pub_type: 临床试验,杂志文章
doi:10.1097/00003246-200207000-00008
更新日期:2002-07-01 00:00:00
abstract:OBJECTIVES:a) To investigate whether the patient work of breathing needed to trigger inspiration is affected by the type of ventilator delivering pressure-support ventilation for mechanically ventilated pediatric patients. b) To determine whether changes in oxygen consumption (VO2) trend with changes in work of breathi...
journal_title:Critical care medicine
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:1994-12-01 00:00:00
abstract::Patients (n = 158) who had been respirator-treated and who could remember the treatment were retrospectively (after greater than 2 months) interviewed about their experiences. Of all patients, 47% had felt anxiety and/or fear during the treatment. These feelings were intimately related to the experience of agony/panic...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198910000-00021
更新日期:1989-10-01 00:00:00
abstract:OBJECTIVE:The objective of the present study was to determine whether selective inflammatory cytokine concentrations within cerebrospinal fluid are useful markers for the differential diagnosis of aseptic and bacterial meningitis within neurosurgical patients. DESIGN:Prospective, open-label, observational, cohort stud...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000001188
更新日期:2015-11-01 00:00:00
abstract:OBJECTIVE:To determine the association of pulmonary artery catheter (PAC) use with in-hospital mortality. DESIGN:Prospective, observational study. SETTING:The medical intensive care units (MICU) of two teaching hospitals. METHODS:The study included 751 adults who were admitted to the MICU, excluding those who stayed...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-200106000-00010
更新日期:2001-06-01 00:00:00
abstract:OBJECTIVE:To test the hypothesis that hyperbaric oxygen therapy ameliorates delayed cognitive impairment after acute carbon monoxide poisoning by promoting neurogenesis through upregulating the brain-derived neurotrophic factor in the hippocampus. DESIGN:Laboratory animal experiments. SETTING:University/Medical cente...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000001299
更新日期:2016-01-01 00:00:00
abstract:OBJECTIVE:The physicochemical approach, described by Stewart to investigate the acid-base balance, includes the strong ion gap (SIG), a quantitative measure of "unmeasured" anions, which strongly correlates to the corrected anion gap. The chemical nature of these anions is for the most part unknown. We hypothesized tha...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0B013E31816443CB
更新日期:2008-03-01 00:00:00
abstract:OBJECTIVES:Although discussing a prognosis is a duty of physicians caring for critically ill patients, little is known about surrogate decision-makers' beliefs about physicians' ability to prognosticate. We sought to determine: 1) surrogates' beliefs about whether physicians can accurately prognosticate for critically ...
journal_title:Critical care medicine
pub_type: 杂志文章,多中心研究
doi:10.1097/CCM.0b013e318180ddf9
更新日期:2008-08-01 00:00:00
abstract:BACKGROUND:Nutritional support is an essential component of the management of critically ill and injured ICU patients. Optimal provision of calories and protein has been demonstrated to reduce morbidity, mortally, and length of ICU and hospital stay. Yet, a large proportion of ICU patients receive inadequate nutrition....
journal_title:Critical care medicine
pub_type: 杂志文章,评审
doi:10.1097/CCM.0000000000000051
更新日期:2014-04-01 00:00:00
abstract:OBJECTIVES:The purposes of this report are to a) describe the University of Michigan experience with venoarterial or venovenous extracorporeal life support for severe pediatric pulmonary rescue therapy, and b) examine survivors and nonsurvivors for differences that might be useful for examination in future, prospective...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199208000-00008
更新日期:1992-08-01 00:00:00
abstract:OBJECTIVES:Patients requiring admission to an ICU may subsequently experience cognitive decline. Our objective was to investigate longitudinal cognitive trajectories in older adults hospitalized in ICUs. We hypothesized that individuals hospitalized for critical illness develop greater cognitive decline compared with t...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000003829
更新日期:2019-08-01 00:00:00
abstract:OBJECTIVE:To report two cases of severe reactive hemophagocytic syndrome (RHS), to discuss their impact, and to present evidence that RHS may be a constitutive part of multiple organ dysfunction syndrome (MODS). DESIGN:Case-report. SETTING:Pediatric intensive care unit (PICU). PATIENTS:Two patients with RHS and MODS...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-200009000-00038
更新日期:2000-09-01 00:00:00
abstract:OBJECTIVE:To study the course of gastric regional PCO2 (PrCO2) in patients with cardiogenic shock requiring intra-aortic balloon (IAB) counterpulsation and the prognostic value of PrCO2 in this patient population. DESIGN:A prospective, observational clinical study. SETTING:Medical intensive care unit in a university ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-200010000-00013
更新日期:2000-10-01 00:00:00
abstract:OBJECTIVES:We reviewed randomized trials of adult ICU patients of interventions hypothesized to reduce delirium burden to determine whether interventions that are more effective at reducing delirium duration are associated with a reduction in short-term mortality. DATA SOURCES:We searched CINHAHL, EMBASE, MEDLINE, and...
journal_title:Critical care medicine
pub_type: 杂志文章,meta分析,评审
doi:10.1097/CCM.0000000000000224
更新日期:2014-06-01 00:00:00
abstract::Colloid osmotic pressure (COP) was measured simultaneously with cardiorespiratory measurements in 103 surgical patients suspected of having circulatory problems. In a small subset of 28 patients, measurements were taken before, during, and after surgical operations. Similarly, data sets were taken before, during, and ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198303000-00010
更新日期:1983-03-01 00:00:00
abstract::This report documents the validity of clinical measurements of oxygen consumption (VO2) and carbon dioxide production (VCO2) made with a new metabolic gas monitor (MGM) suitable for use in critically ill patients receiving mechanical ventilatory support. Paired samples of inspired and expired gases were obtained, and ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198710000-00012
更新日期:1987-10-01 00:00:00
abstract:OBJECTIVES:There is limited evidence supporting the widespread use of α2 agonists (clonidine and dexmedetomidine) in pediatric critical care sedation. This study sought to test the association between the use of α2 agonists and enhanced sedation. DESIGN:A retrospective observational cohort study was conducted. Noninfe...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000003789
更新日期:2019-07-01 00:00:00
abstract:OBJECTIVE:Peripheral perfusion in critically ill patients frequently is assessed by use of clinical signs. Recently, the pulse oximetry signal has been suggested to reflect changes in peripheral perfusion. A peripheral perfusion index based on analysis of the pulse oximetry signal has been implemented in monitoring sys...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-200206000-00006
更新日期:2002-06-01 00:00:00