Abstract:
OBJECTIVE:To determine a) if the admission osmole gap, the difference between osmolality and osmolarity, is the same in the neurologic-neurosurgical intensive care unit (NNICU) population as in healthy controls; b) which of 11 osmole gap formulas, or osmolality, correlates best with mannitol serum concentrations; c) whether osmole gap correction for plasma water content improves this correlation; and d) whether the osmole gap can predict mannitol serum concentrations. DESIGN:Prospectively collected data. SETTINGS:NNICU of a tertiary teaching hospital. SUBJECTS:Ten NNICU patients on mannitol and eight not on mannitol, and 95 healthy controls. INTERVENTIONS:None. MEASUREMENTS AND MAIN RESULTS:We compared the admission osmole gap between all 18 NNICU patients and healthy controls and the correlation between osmole gap or osmolality and mannitol serum concentrations in ten NNICU patients while receiving mannitol. The osmole gap was calculated using 11 osmolarity formulas (six corrected for plasma water content). Student's t-test was used to compare the mean osmole gap between control and patient groups.We found that the mean osmole gap in healthy subjects and NNICU patients was not different. There were no statistically significant differences between any of the 11 osmole gap formulas and the correlation of osmole gap with serum mannitol concentrations; the highest R =.80, with formula 4, 1.86 (sodium + potassium) + (blood urea nitrogen/2.8) + (glucose/18) + 10, requires the least laboratory measurements. Osmolality had the lowest correlation with mannitol concentration (R =.60), significantly lower than any of the osmole gap calculations. Plasma water content correction did not improve this correlation. The osmole gap-mannitol serum concentrations relationship is 1 to 0.81, not accurate enough to predict specific mannitol serum concentrations. CONCLUSIONS:The osmole gap correlates better with mannitol serum concentrations than osmolality, and although it cannot predict a specific mannitol serum concentration, a normal osmole gap concentration, as we find at trough times, indicates sufficient clearance for a new mannitol dose.
journal_name
Crit Care Medjournal_title
Critical care medicineauthors
García-Morales EJ,Cariappa R,Parvin CA,Scott MG,Diringer MNdoi
10.1097/01.ccm.0000120057.04528.60subject
Has Abstractpub_date
2004-04-01 00:00:00pages
986-91issue
4eissn
0090-3493issn
1530-0293pii
00003246-200404000-00015journal_volume
32pub_type
杂志文章abstract:OBJECTIVE:To assess the effects of dopexamine on splanchnic blood flow and splanchnic oxygen uptake in septic patients. DESIGN:A prospective, controlled trial. SETTING:A ten-bed intensive care unit (ICU) in a university hospital. PATIENTS:Twelve patients with severe sepsis (according to the criteria of the 1992 Amer...
journal_title:Critical care medicine
pub_type: 临床试验,杂志文章
doi:10.1097/00003246-199910000-00015
更新日期:1999-10-01 00:00:00
abstract:OBJECTIVE:To determine the financial impact of a sepsis protocol designed for use in the emergency department. DESIGN:Retrospective analysis of a before-after study testing the implications of sepsis protocol. SETTING:Academic, tertiary care hospital in the United States. PATIENTS:Persons with septic shock presentin...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/01.CCM.0000261886.65063.CC
更新日期:2007-05-01 00:00:00
abstract:OBJECTIVE:To determine whether extreme obesity (morbid obesity; body mass index > or =40 kg/m(2)) is an independent risk factor for death among critically ill patients; this objective is most salient in the subset of patients who sustain a prolonged intensive care unit stay during which the burdens of care imposed by o...
journal_title:Critical care medicine
pub_type: 评论,杂志文章
doi:10.1097/01.CCM.0000205758.18891.70
更新日期:2006-04-01 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::To determine whether end-tidal carbon dioxide tension (PETCO2) accurately reflects PaCO2 during high-frequency jet ventilation (HFJV), 43 studies were performed on eight mongrel dogs with normal lungs. During HFJV, minute volume was modified to obtain a range of PaCO2 values from 15.5 to 74.5 torr. When PETCO2 was mea...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198610000-00014
更新日期:1986-10-01 00:00:00
abstract:BACKGROUND:Increased intracranial pressure (ICP) worsens the outcome of acute liver failure (ALF). This study investigates the underlying pathophysiological mechanisms and evaluates the therapeutic effect of albumin dialysis in ALF with use of the Molecular Adsorbents Recirculating System without hemofiltration/dialysi...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/01.ccm.0000196203.39832.3c
更新日期:2006-01-01 00:00:00
abstract:OBJECTIVES:Despite the universal proliferation of emergency medical services programs throughout the United States since 1970, only a few have ever documented a valid lifesaving effect, particularly in large, urban centers. The purpose of this study was to demonstrate the effect of specialized physician supervision on ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199309000-00009
更新日期:1993-09-01 00:00:00
abstract:OBJECTIVE:Although it is established that septic shock induces immunosuppression, the mechanisms for this phenomenon remain poorly understood. Human leukocyte antigen-G exerts strong inhibitory effects that are directed at different arms of the immune system. The main objective of the current study was to measure human...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/01.CCM.0000277039.84372.1C
更新日期:2007-08-01 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:OBJECTIVES:The potential advantages of lowering core temperature during sepsis are to lower energy requirement and to activate various cell-protecting pathways. We experimentally investigated whether postconditioning temperature modifications influence survival duration during experimental sepsis. DESIGN:A prospective...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/01.CCM.0000240231.76837.DC
更新日期:2006-10-01 00:00:00
abstract:BACKGROUND:Hypertonic saline is the recommended therapy to shrink swollen brain cells in patients with acute hyponatremia accompanied by seizures. OBJECTIVES:In the absence of hypertonic saline, hypertonic mannitol will shrink the cell volume. Because mannitol is excreted rapidly, our aim was to ensure that it would b...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-200006000-00037
更新日期:2000-06-01 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: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::Bacterial translocation and ileal and cecal injury have been shown to occur 24 h after limited periods of hemorrhagic shock. The present studies were performed to determine the temporal sequence of mucosal injury, permeability, and bacterial translocation after hemorrhagic shock. The results indicated that bacterial t...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199005000-00014
更新日期:1990-05-01 00:00:00
abstract:OBJECTIVE:To determine the blood discard volume, as a multiple of deadspace, that is required for accurate arterial blood gas and electrolyte testing from arterial catheters. DESIGN:Prospective, controlled, crossover trial. SETTING:Eighteen-bed intensive care unit of a metropolitan teaching hospital. PATIENTS:A tota...
journal_title:Critical care medicine
pub_type: 临床试验,杂志文章
doi:10.1097/01.CCM.0000063448.98777.EF
更新日期:2003-06-01 00:00:00
abstract:OBJECTIVES:To describe the effectiveness of a comprehensive, interdisciplinary sepsis treatment protocol with regard to both implementation and outcomes and to compare the mortality rates and therapies of patients with septic shock with similar historical controls. DESIGN:Prospective, interventional cohort study with ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/01.CCM.0000206104.18647.A8
更新日期:2006-04-01 00:00:00
abstract:OBJECTIVE:To determine if selective decontamination of the digestive tract (SDD) influences the proinflammatory immune response of the gut after hemorrhage. DESIGN:Random assignment to either unmanipulated control after 7 days of SDD or conventional rat chow, or hemorrhagic shock group after the same time of conventio...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-200206000-00030
更新日期:2002-06-01 00:00:00
abstract:OBJECTIVE:Neutrophils are an important component of the inflammatory response that characterizes acute lung injury (ALI). This discussion aims to review the contribution of neutrophils to the development and progression of ALI and to highlight the major intracellular signaling pathways that are involved in neutrophil a...
journal_title:Critical care medicine
pub_type: 杂志文章,评审
doi:10.1097/01.CCM.0000057843.47705.E8
更新日期:2003-04-01 00:00:00
abstract:OBJECTIVES:With the exception of a few single-center descriptive reports, data on critical care organizations are relatively sparse. The objectives of our study were to determine the structure, governance, and experience to date of established critical care organizations in North American academic medical centers. DES...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000001200
更新日期:2015-10-01 00:00:00
abstract:OBJECTIVE:To explore ethnic differences in do-not-resuscitate orders after intracerebral hemorrhage. DESIGN:Population-based surveillance. SETTING:Corpus Christi, Texas. PATIENTS:All cases of intracerebral hemorrhage in the community of Corpus Christi, TX were ascertained as part of the Brain Attack Surveillance in ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e3181a56755
更新日期:2009-10-01 00:00:00
abstract:OBJECTIVES:To determine the proportion of patients with documented bacterial aspiration pneumonia among comatose ICU patients with symptoms suggesting either bacterial aspiration pneumonia or non-bacterial aspiration pneumonitis. DESIGN:Prospective observational study. SETTING:University-affiliated 30-bed ICU. PATIE...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000002525
更新日期:2017-08-01 00:00:00
abstract:OBJECTIVE:To test the hypothesis that trauma-hemorrhagic shock (T/HS)-induced changes in red blood cells (RBC) contribute to the reduction of blood flow in distant organs. DESIGN:Laboratory study. SETTING:Academic medical center laboratory. SUBJECTS:Specific pathogen-free male Sprague-Dawley rats weighing between 25...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e3181962d39
更新日期:2009-03-01 00:00:00
abstract:OBJECTIVE:To review trial design issues related to control groups. DESIGN:Review of the literature with specific reference to critical care trials. MAIN RESULTS AND CONCLUSIONS:Performing randomized controlled trials in the critical care setting presents specific problems: studies include patients with rapidly lethal...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e3181922bf4
更新日期:2009-01-01 00:00:00
abstract:OBJECTIVES:Existing handheld glucose meters are glucose oxidase (GO)-based. Oxygen side reactions can introduce oxygen dependency, increase potential error, and limit clinical use. Our primary objectives were to: a) introduce a new glucose dehydrogenase (GD)-based electrochemical biosensor for point-of-care testing; b)...
journal_title:Critical care medicine
pub_type: 杂志文章,多中心研究
doi:10.1097/00003246-199803000-00036
更新日期:1998-03-01 00:00:00
abstract:OBJECTIVES:To develop a valid, reliable measure that reflected the environment of respectfulness within the ICU setting. DESIGN:We developed a preliminary survey instrument based on conceptual domains of respect identified through prior qualitative analyses of ICU patient, family member, and clinician perspectives. Th...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000003069
更新日期:2018-06-01 00:00:00
abstract:OBJECTIVES:Extracorporeal membrane oxygenation is used to stabilize severe cardiocirculatory and/or respiratory failure. However, extracorporeal membrane oxygenation is associated with a coagulopathy characterized by thromboembolic and hemorrhagic complications. This study aimed to characterize the pathomechanism of th...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000004286
更新日期:2020-05-01 00:00:00
abstract:OBJECTIVES:Low tidal volume (= tidal volume ≤ 6 mL/kg, predicted body weight) ventilation using volume control benefits patients with acute respiratory distress syndrome. Airway pressure release ventilation is an alternative to low tidal volume-volume control ventilation, but the release breaths generated are variable ...
journal_title:Critical care medicine
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1097/CCM.0000000000003437
更新日期:2018-12-01 00:00:00
abstract:OBJECTIVES:To assess the reversibility of acute kidney injury-induced neutrophil dysfunction and to identify involved mechanisms. DESIGN:Controlled laboratory experiment and prospective observational clinical study. SETTING:University laboratory and hospital. SUBJECTS:C57BL/6 wild-type mice. PATIENTS:Patients with ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000001472
更新日期:2016-07-01 00:00:00
abstract:OBJECTIVE:To determine whether the difference between oxygen consumption (VO2) measured by metabolic gas monitoring systems and by the Fick principle is related to venous admixture, deadspace/tidal volume ratio, or alveolar-arterial oxygen tension gradient in critically ill patients. DESIGN:A prospective study. SETTI...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199204000-00008
更新日期:1992-04-01 00:00:00
abstract:OBJECTIVE:The role of family interests in medical decision making is controversial. Physicians who routinely treat incompetent patients may have preferred strategies for addressing family interests as they are encountered in surrogate medical decision making. We sought to determine how physicians view the role of famil...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/01.ccm.0000084805.15352.01
更新日期:2003-07-01 00:00:00