Abstract:
OBJECTIVE:To investigate a role of the opiate system during acute hypoxic hypoxia, the effects of naloxone and morphine on hypoxic survival rate were investigated in awake adult mice. DESIGN:Prospective, randomized, animal trial. SETTING:University research laboratory. SUBJECTS:Male dd-Y mice (n = 864 in experiment I, n = 144 in experiment II, n = 30 in experiment III). INTERVENTIONS:The animals were placed in an airtight plastic chamber into which a continuous flow of 8 L/min 5% oxygen-95% nitrogen was passed. MEASUREMENTS AND MAIN RESULTS:One and 5 mg/kg naloxone had no significant effect on the survival rate of mice subjected to acute hypoxic hypoxia, whereas 10 mg/kg naloxone decreased the survival rate. On the other hand, 2 and 5 mg/kg morphine was shown to have a protective action against acute hypoxic hypoxia. The protective effects of 5 mg/kg morphine against hypoxia was even antagonized by 5 mg/kg naloxone, which did not itself show any significant effect on the survival rate. The oxygen consumption in the morphine-treated (5 mg/kg) mice was significantly (p < .05) lower (87.0% +/- 4.6%; mean +/- SE) than that in the saline-treated animals. CONCLUSIONS:The present study suggests that the endogenous opiate system does not play a significant role on the pathophysiology caused by acute hypoxic hypoxia and that the improved survival of the hypoxic animals by morphine is at least partly attributable to its depressant effect on oxygen consumption.
journal_name
Crit Care Medjournal_title
Critical care medicineauthors
Endoh H,Taga K,Yamakura T,Sato K,Watanabe I,Fukuda S,Shimoji Kdoi
10.1097/00003246-199909000-00035subject
Has Abstractpub_date
1999-09-01 00:00:00pages
1929-33issue
9eissn
0090-3493issn
1530-0293journal_volume
27pub_type
杂志文章abstract:OBJECTIVE:To derive a target range of optimal sedation for the COMFORT Scale and to prospectively test that target range against intensivist assessment of adequacy of sedation. DESIGN:Serial prospective agreement cohort studies. SETTING:Twelve-bed pediatric intensive care unit in an urban academic teaching hospital. ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199401000-00029
更新日期:1994-01-01 00:00:00
abstract:OBJECTIVES:Streptococcus pneumoniae is the most common causative pathogen in community-acquired pneumonia. In patients, thrombocytopenia is correlated with an adverse outcome of pneumonia. Platelets can modulate the host response to infection in several ways, that is, by facilitating clot formation, production of antim...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000000853
更新日期:2015-03-01 00:00:00
abstract:OBJECTIVE:To determine the relative distribution of fluid within the extracellular fluid volume (ECFV) and the effect on oxygen delivery after infusing either normal saline or 5% albumin in cardiac surgical patients. DESIGN:Prospective, randomized, unblinded, interventional study. SETTING:Cardiac surgical intensive c...
journal_title:Critical care medicine
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00003246-200112000-00011
更新日期:2001-12-01 00:00:00
abstract:OBJECTIVE:To report a case of fatal hyperkalemia owing to succinylcholine administration in a patient with mucositis secondary to chemotherapy. DESIGN:Case report. SETTING:Adult intensive care unit (ICU) at Dartmouth-Hitchcock Medical Center. PATIENTS:One patient with mucositis secondary to chemotherapy. MEASUREMEN...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-200106000-00040
更新日期:2001-06-01 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:OBJECTIVES:To compare sleep, work hours, and behavioral alertness in faculty and fellows during a randomized trial of nighttime in-hospital intensivist staffing compared with a standard daytime intensivist model. DESIGN:Prospective observational study. SETTING:Medical ICU of a tertiary care academic medical center du...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000003773
更新日期:2019-07-01 00:00:00
abstract:OBJECTIVE:One in five Americans dies following treatment in an intensive care unit (ICU), and evidence indicates the need to improve end-of-life care for ICU patients. We conducted this study to elicit the views and experiences of ICU directors regarding barriers to optimal end-of-life care and to identify the type, av...
journal_title:Critical care medicine
pub_type: 杂志文章,多中心研究
doi:10.1097/01.CCM.0000239233.63425.1D
更新日期:2006-10-01 00:00:00
abstract:OBJECTIVES:The emergency department is an important venue for initial sepsis recognition and care. We sought to determine contemporary estimates of the epidemiology of U.S. emergency department visits for sepsis. DESIGN:Analysis of data from the National Hospital Ambulatory Medical Care Survey. SETTING:U.S. emergency...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000002538
更新日期:2017-09-01 00:00:00
abstract:OBJECTIVES:Radial artery applanation tonometry allows completely noninvasive continuous cardiac output estimation. The aim of the present study was to compare cardiac output measurements obtained with applanation tonometry (AT-CO) using the T-Line system (Tensys Medical, San Diego, CA) with cardiac output measured by i...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000000979
更新日期:2015-07-01 00:00:00
abstract:OBJECTIVE:To evaluate the potential clinical, metabolic, and economic advantages of enteral nutrition over total parenteral nutrition. DESIGN:Prospective, randomized clinical trial. SETTING:Department of surgery in a university hospital. PATIENTS:Two hundred and fifty-seven patients with cancer of the stomach (n = 1...
journal_title:Critical care medicine
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00003246-200102000-00003
更新日期:2001-02-01 00:00:00
abstract:OBJECTIVE:To review the physiology of the regulation and determinants of heart rate and the significance in the management of critically ill patients. DATA SOURCES:The MEDLINE database, references from selected articles, and the author's personal database. DATA SYNTHESIS:This review begins with the regulation of card...
journal_title:Critical care medicine
pub_type: 杂志文章,评审
doi:10.1097/CCM.0b013e318232e50c
更新日期:2012-01-01 00:00:00
abstract:OBJECTIVES:To determine whether high rates of ineffective triggering within the first 24 hrs of mechanical ventilation (MV) are associated with longer MV duration and shorter ventilator-free survival (VFS). DESIGN:Prospective cohort study. SETTING:Medical intensive care unit (ICU) at an academic medical center. PATI...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/ccm.0b013e3181a98a05
更新日期:2009-10-01 00:00:00
abstract::We compared the blood culture results obtained either by venipuncture or through an arterial catheter in 51 critically ill patients with 217 clinically suspected episodes of bacteremia. During each episode, three blood culture samples, two arterial and one venous, were drawn within 1 h. One or more cultures were posit...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:
更新日期:1985-08-01 00:00:00
abstract::The effect of halothane on electrodes covered with polypropylene and FEP teflon membranes, used for monitoring transcutaneous oxygen tension, was compared in vitro and in patients anesthetized with halothane. In vitro experiments with halothane showed a false increase in PO2 measured by the electrode covered with poly...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198308000-00006
更新日期:1983-08-01 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:OBJECTIVE:To review how endogenous protein C activation might change in disease states and to discuss the implications of these findings in the context of severe sepsis. DATA SOURCE:A review of the published literature in PubMed together with data from abstracts from 2001 to present. DATA EXTRACTION AND SYNTHESIS:Act...
journal_title:Critical care medicine
pub_type: 杂志文章,评审
doi:10.1097/01.ccm.0000126125.79861.d3
更新日期:2004-05-01 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
abstract:OBJECTIVE:The adrenal gland is the endocrine organ most commonly involved in patients infected with human immunodeficiency virus (HIV). It is important to recognize patients with adrenal insufficiency, because this disorder may be fatal if untreated. The incidence of adrenal insufficiency in critically ill HIV-infected...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-200206000-00018
更新日期:2002-06-01 00:00:00
abstract:OBJECTIVES:Recently, the definition of sepsis has changed from a physiologic derangement (Sepsis-1 and -2) to organ dysfunction (Sepsis-3) based. We sought to determine the concordance between the different sepsis phenotypes and how that affected mortality. DESIGN:Retrospective, multicenter study. SETTING:Three acade...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000004449
更新日期:2020-09-01 00:00:00
abstract::Healthcare systems spend considerable resources collecting and processing blood cultures for the detection of blood stream pathogens. The process is initiated with the collection of blood cultures that depend upon proper skin disinfection, collection of an adequate number of specimens and volume of blood, and prompt p...
journal_title:Critical care medicine
pub_type: 杂志文章,评审
doi:10.1097/CCM.0b013e318270e771
更新日期:2012-12-01 00:00:00
abstract:OBJECTIVE:Our aim was to determine the frequency and the clinical and epidemiologic characteristics of sepsis in a hospital-based population in Colombia. DESIGN:Prospective cohort. SETTING:Ten general hospitals in the four main cities of Colombia. PATIENTS:Consecutive patients admitted in emergency rooms, intensive ...
journal_title:Critical care medicine
pub_type: 杂志文章,多中心研究
doi:10.1097/CCM.0b013e318218a35e
更新日期:2011-07-01 00:00:00
abstract:OBJECTIVE:To determine the specific effect of peak volume history pressure on the inflation limb of the pressure-volume curve and peak pressure-volume curve pressure on the deflation limb of the pressure-volume curve. DESIGN:Prospective assessment of pressure-volume curves in saline, lung lavage injured sheep. SETTIN...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/01.ccm.0000128573.28173.2e
更新日期:2004-06-01 00:00:00
abstract:OBJECTIVES:Optimistic expectations about prognosis by surrogate decision-makers in ICUs are common, but there are few data about the causes and clinical consequences. Our objective was to determine the causes of optimistic expectations about prognosis among surrogates and whether it is associated with more use of life ...
journal_title:Critical care medicine
pub_type: 杂志文章,多中心研究
doi:10.1097/CCM.0000000000003807
更新日期:2019-09-01 00:00:00
abstract:OBJECTIVE:To determine whether a cellular phone would interfere with the operation of mechanical ventilators. DESIGN:Laboratory study. SETTING:University medical center. SUBJECTS:Fourteen mechanical ventilators. INTERVENTIONS:We evaluated change in operation and malfunction of the mechanical ventilators. MEASUREME...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/01.ccm.0000120061.01431.db
更新日期:2004-04-01 00:00:00
abstract::The disadvantages of external ventricular drainage are the threat of sepsis and the nuisance of dislodging a precarious system in routine care. The experience of the authors with nearly 200 cases using a long ventricular catheter demonstrates that a subgaleal tunnel can be easily made for the ventricular catheter usin...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-197912000-00010
更新日期:1979-12-01 00:00:00
abstract:OBJECTIVE:Preoperative intra-aortic balloon pumping (IABP) improves the results of complex coronary surgery. However, its insertion may be harmful or contraindicated in cases of severe and diffuse atherosclerosis of the descending aorta and peripheral arteries. We sought to evaluate the efficacy and safety of transbrac...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/01.CCM.0000229884.94475.DB
更新日期:2006-08-01 00:00:00
abstract::Patient awareness of intermittent positive-pressure ventilation (IPPV) treatment in the ICU was studied in 304 patients. These ICU patients were divided into three groups: those treated for internal medical diseases (IMD; n = 129), patients admitted after major surgical procedures (MSP; n = 126), and patients treated ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198901000-00006
更新日期:1989-01-01 00:00:00
abstract:OBJECTIVE:Intrahospital transport of critically ill patients is often necessary for optimal patient care. However, transport of intensive care unit (ICU) patients within the hospital has been associated with a high rate of potentially detrimental complications. This study was designed to determine the occurrence rate o...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199510000-00009
更新日期:1995-10-01 00:00:00
abstract:OBJECTIVE:The flow rate of a liquid drainage from the lungs is limited because of the elastic nature of the airways. This study was designed to clarify the relationship between intrapulmonary liquid volume and the development of the flow limitation or choked flow phenomenon as a function of expiratory flow rate during ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/01.CCM.0000104918.48411.91
更新日期:2004-01-01 00:00:00
abstract::We analyzed 35 samples of fresh frozen plasma (FFP), finding mean concentrations of 535 mg/dl glucose, 172 mEq/L sodium, 73 mEq/L chloride, 3.5 mEq/L potassium, 15 mEq/L bicarbonate, and 5.5 g/dl protein with 60% albumin. Thus, FFP is a hyperosmolal, hyperglycemic, hypernatremic, and hypochloremic solution which may b...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198602000-00015
更新日期:1986-02-01 00:00:00