Abstract:
OBJECTIVE:There is evidence to suggest that anemia after severe traumatic brain injury (sTBI) is detrimental. However, there is a paucity of evidence supporting the use of transfusion of packed red blood cells in patients with sTBI. To understand the acute effect of packed red blood cell transfusion on cerebral oxygenation and metabolism in patients with sTBI. DESIGN:Prospective clinical study. SETTING:Addenbrooke's Neurosciences Critical Care Unit, a 21-bed tertiary academic unit. PATIENTS:Thirty patients with sTBI. INTERVENTIONS:Patients were randomized by computer random number generator to one of three transfusion thresholds: 8, 9, or 10 g/dL. When the patients' hemoglobin concentration fell below their assigned threshold, two units of packed red blood cells were transfused over 2 hours. A 1-hour period of stabilization was observed before final data collection. MEASUREMENTS AND MAIN RESULTS:The primary outcome was change in brain tissue oxygen (Pbto2). Secondary outcomes included dependence of baseline hemoglobin concentration and baseline Pbto2 on the relationship of transfusion and Pbto2, and the effect of transfusion on lactate pyruvate ratio (LPR) and brain pH as markers of cerebral metabolic state. Fifty-seven percent of patients experienced an increase in Pbto2 during the course of the study, whereas in 43% of patients, Pbto2 either did not change or decreased. Multivariable generalized estimating equation analysis revealed change in hemoglobin concentration to significantly and positively associated with change in Pbto2 [0.10 kPa/(g/dL) 95% confidence interval 0.03-0.17, p = 0.003]. Improvement in Pbto2 was not associated with baseline hemoglobin concentration or low Pbto2 (<1 kPa). Fifty-six percent of patients experienced an increase in LPR. No significant relationship between change in LPR or transfusion on pHbt and change in hemoglobin could be demonstrated. CONCLUSIONS:Transfusion of packed red blood cells acutely results in improved brain tissue oxygen without appreciable effect on cerebral metabolism. TRIAL REGISTRATION:ISRCTN89085577.
journal_name
Crit Care Medjournal_title
Critical care medicineauthors
Zygun DA,Nortje J,Hutchinson PJ,Timofeev I,Menon DK,Gupta AKdoi
10.1097/CCM.0b013e318194ad22subject
Has Abstractpub_date
2009-03-01 00:00:00pages
1074-8issue
3eissn
0090-3493issn
1530-0293pii
00003246-200903000-00040journal_volume
37pub_type
杂志文章,随机对照试验abstract::One hundred six early features were retrospectively collected on 44 patients with acute pancreatitis and stored in a database programmed on a microcomputer. Intraoperative/autopsy findings or clinical course categorized patients as having severe (n = 16) or mild (n = 28) pancreatitis. The frequency of 88 early availab...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198904000-00004
更新日期:1989-04-01 00:00:00
abstract:OBJECTIVE:Sepsis remains a major health threat in intensive care medicine. The renin-angiotensin system (ACE) affects inflammatory responses. In addition, angiotensin-converting enzyme inhibitors act to ameliorate lung injury. To investigate whether the widely used ACE inhibitor enalapril, used to treat hypertension, c...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e3181958d91
更新日期:2009-02-01 00:00:00
abstract::Critical Care Medicine encompasses an extremely broad scope. Examination questions were, therefore, chosen to cover a wide variety of critical care topics. A near Gaussian distribution of scores was found for all physician groups studied. We believe the low mean score of 15% reflects the general difficulty of the exam...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198305000-00014
更新日期:1983-05-01 00:00:00
abstract::High-frequency jet ventilation using a jet injector located at the right mainstem bronchus was superimposed on standard mechanical ventilation to ventilate the injured lung of a patient with unilateral massive atelectasis secondary to pulmonary hemorrhage. This technique of differential ventilation markedly improved a...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198409000-00039
更新日期:1984-09-01 00:00:00
abstract::To correlate radiant warmer bed power output with state of hydration in the critically ill infant, warmer power input was measured by a wattmeter and recorded by an on-line computer every 5 sec for 2 periods of 8-24 h each in 11 newborns with respiratory distress syndrome (mean birth weight 1.42 kg, mean gestational a...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198210000-00012
更新日期:1982-10-01 00:00:00
abstract:OBJECTIVES:We investigated whether patients with chronic obstructive pulmonary disease could safely receive noninvasive ventilation outside of the ICU. DESIGN:Retrospective cohort study. SETTING:Twelve states with ICU utilization flag from the State Inpatient Database from 2014. PATIENTS:Patients greater than or equ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000003660
更新日期:2019-05-01 00:00:00
abstract:OBJECTIVE:To determine whether treatment with patient-controlled analgesia (PCA) alone or in combination with nonsteroidal anti-inflammatory drugs can prevent postoperative pulmonary complications after cardiac surgery, when compared with conventional nurse-controlled analgesia. DESIGN:Randomized controlled trial. SE...
journal_title:Critical care medicine
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00003246-199910000-00025
更新日期:1999-10-01 00:00:00
abstract::Checklists have been recently promulgated as a method to enhance patient safety and improve outcomes for critically ill patients. Specifically, recent work performed by researchers from the Johns Hopkins Medical Institutions has demonstrated that the addition of checklists to usual care in the intensive care unit is a...
journal_title:Critical care medicine
pub_type: 杂志文章,评审
doi:10.1097/CCM.0b013e31819541f8
更新日期:2009-02-01 00:00:00
abstract:OBJECTIVES:There has long-been controversy about the possible superiority of norepinephrine compared to dopamine in the treatment of shock. The objective was to evaluate the effects of norepinephrine and dopamine on outcome and adverse events in patients with septic shock. DATA SOURCES:A systematic search of the MEDLI...
journal_title:Critical care medicine
pub_type: 杂志文章,meta分析
doi:10.1097/CCM.0b013e31823778ee
更新日期:2012-03-01 00:00:00
abstract:OBJECTIVE:To evaluate the prevalence and magnitude of weakness in patients receiving chronic mechanical ventilation and the impact of providing aggressive whole-body rehabilitation on conventional weaning variables, muscle strength, and overall functional status. DESIGN:Retrospective analysis of 49 consecutive patient...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/01.ccm.0000181730.02238.9b
更新日期:2005-10-01 00:00:00
abstract::Sequential assessment of renal function in 50 critically ill postoperative patients was done by simultaneous determinants of osmolar, free water, creatinine and sodium clearances, and fractional excretion of sodium. The traumatic and nontraumatic critically ill surgical patients had a characteristic pattern of creatin...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198002000-00004
更新日期:1980-02-01 00:00:00
abstract:OBJECTIVES:A recent post hoc analysis suggested that driving pressure may be more important than traditional ventilatory variables in determining outcome in mechanically ventilated patients with acute respiratory distress syndrome. We conducted a systematic review and meta-analysis to summarize the risk of mortality fo...
journal_title:Critical care medicine
pub_type: 杂志文章,meta分析
doi:10.1097/CCM.0000000000002838
更新日期:2018-02-01 00:00:00
abstract::Significant resistance was encountered when an attempt was made to withdraw a persistently wedged pulmonary artery catheter. A small amount of air was injected into the balloon lumen with great difficulty. This injection freed the catheter which was removed, but produced significant sudden hemoptysis and a pneumothora...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198106000-00013
更新日期:1981-06-01 00:00:00
abstract::Pentoxifylline has been shown to increase red blood cell malleability, thus increasing capillary blood flow in a number of disease states. The present study was undertaken to determine whether pentoxifylline might improve tissue oxygenation after anesthesia and during an operation in rats. Rats were anesthetized and d...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198702000-00001
更新日期:1987-02-01 00:00:00
abstract::To further define cardiovascular abnormalities in patients with septic shock, serial conventional hemodynamic measurements combined with two-dimensional echocardiographic studies were performed at the bedside in 21 patients admitted for an acute episode of sepsis-related circulatory failure. Measurements obtained duri...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199010000-00001
更新日期:1990-10-01 00:00:00
abstract:OBJECTIVE:To evaluate the action of high-dose epinephrine by measuring simultaneously its vasopressor and norepinephrine releasing effects in humans during cardiac arrest. DESIGN:A prospective study on consecutive patients admitted with cardiac arrest. SETTING:Emergency Department in a large, urban hospital. PATIENT...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199305000-00012
更新日期:1993-05-01 00:00:00
abstract:OBJECTIVE:Procalcitonin, the precursor peptide of calcitonin, has been shown to be a serum marker of the severity and mortality of several systemic inflammatory response syndromes. This study addressed the correlation of serum procalcitonin with the course of classic (nonexertional) heatstroke. DESIGN:Serum samples we...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199708000-00024
更新日期:1997-08-01 00:00:00
abstract:OBJECTIVES:Although the mortality of severe sepsis is easily quantified, the actual cause and timing of death from severe sepsis are less defined. We used the INDEPTH (International Integrated Database for the Evaluation of Severe Sepsis and Drotrecogin alfa activated) database to investigate the reported cause of deat...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e31820eda29
更新日期:2011-05-01 00:00:00
abstract:OBJECTIVE:Rapid fluid loading is standard treatment for hypovolemia. Because volume expansion does not always improve hemodynamic status, predictive parameters of fluid responsiveness are needed. Passive leg raising is a reversible maneuver that mimics rapid volume expansion. Passive leg raising-induced changes in stro...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e3181c8fe7a
更新日期:2010-03-01 00:00:00
abstract:BACKGROUND:Venous thromboembolic disease is among the most common causes of morbidity and mortality during pregnancy. The clinical evaluation alone is insufficient for the diagnosis of venous thromboembolic disease, and the normal pregnant state makes this evaluation even more challenging. DIAGNOSIS:Objective testing ...
journal_title:Critical care medicine
pub_type: 杂志文章,评审
doi:10.1097/01.ccm.0000183157.15533.4c
更新日期:2005-10-01 00:00:00
abstract:OBJECTIVE:To describe three female patients of one family with different phenotypes of the same mutation of the ornithine transcarbamylase gene. X-linked inherited ornithine transcarbamylase deficiency is the most frequent urea cycle disorder. Many of the hemizygous males die during the neonatal period. Women, who are ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-200201000-00035
更新日期:2002-01-01 00:00:00
abstract:OBJECTIVE:Sepsis is a frequent cause of admission, but incidence rates based on administrative data have previously produced large differences in estimates. The aim of the study was to estimate the incidence of community-acquired sepsis based on patients' symptoms and clinical findings at arrival to the hospital. DESI...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000000611
更新日期:2015-01-01 00:00:00
abstract:OBJECTIVES:Cognitive deficits after traumatic brain injury are a leading cause of disability worldwide, yet no effective pharmacologic treatments exist to improve cognition. Traumatic brain injury increases proinflammatory cytokines, which trigger excess function of α5 subunit-containing γ-aminobutyric acid type A rece...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000004161
更新日期:2020-04-01 00:00:00
abstract:OBJECTIVES:Extracellular mitochondrial DNA and N-formyl peptides released following tissue damage may contribute to systemic inflammation through stimulation of the innate immune system. In this review, we evaluate existing in vivo human data regarding a role for mitochondrial DNA and N-formyl peptides in producing sys...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000003381
更新日期:2018-12-01 00:00:00
abstract:OBJECTIVE:We hypothesized that the extent of injury and release of xanthine oxidase, an oxidant generator, into the circulation would be less in normal-flow hypoxia-reoxygenation than in equal duration no-flow ischemia-reperfusion. DESIGN:Randomized study. SETTING:University-based animal research facility. SUBJECTS:...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199806000-00034
更新日期:1998-06-01 00:00:00
abstract:OBJECTIVES:To evaluate the ability of central venous-to-arterial carbon dioxide pressure difference, central venous oxygen saturation, and the combination of these two parameters to detect extubation failure in critically ill patients. DESIGN:Multicentric, prospective, observational study. SETTING:Three ICUs. PATIEN...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000004446
更新日期:2020-10-01 00:00:00
abstract:OBJECTIVES:The American College of Critical Care Medicine provided 2002 and 2007 guidelines for hemodynamic support of newborn and pediatric septic shock. Provide the 2014 update of the 2007 American College of Critical Care Medicine "Clinical Guidelines for Hemodynamic Support of Neonates and Children with Septic Shoc...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000002425
更新日期:2017-06-01 00:00:00
abstract:OBJECTIVES:To measure pulmonary capillary pressure and pulmonary artery occlusion pressures both during control conditions and during acute lung injury and to evaluate the effects of inotropic therapy and volume loading on these measurements after lung injury. DESIGN:Prospective, randomized, controlled laboratory tria...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-200202000-00023
更新日期:2002-02-01 00:00:00
abstract:OBJECTIVE:To investigate the concentrations of reduced and total glutathione in relation to the muscle free amino acid pattern in critically ill patients and matched healthy controls. DESIGN:Prospective case control. SETTING:University hospital intensive care unit (ICU). PATIENTS:Eleven critically ill patients in th...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199701000-00016
更新日期:1997-01-01 00:00:00
abstract:OBJECTIVE:Blood loss and transfusion are frequent among patients undergoing liver surgery. Concerns have been raised about the safety and efficacy of transfusing stored blood. The influence of transfusing fresh vs. stored blood on the liver has not been studied to date. We tested the hypothesis that transfusion of stor...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e3182711b38
更新日期:2013-03-01 00:00:00