Abstract:
OBJECTIVE:Toxic free radicals cause dysfunction of respiratory muscles, probably leading to respiratory distress. Exposure to high concentrations of oxygen generates plenty of free radicals. Lidocaine scavenges the reactive molecules. The purposes of the current study were first to examine whether hyperoxia impairs diaphragmatic function, and second, to assess the effects of lidocaine on hyperoxia-induced diaphragmatic dysfunction, if developed. DESIGN:Prospective, randomized animal study. SETTING:University research laboratory. SUBJECTS:Forty and 48 adult male Golden-Syrian hamsters (110-150 g) in parts I and II studies, respectively. INTERVENTION:In the part I study, hyperoxia for 5 and 6 days reduced diaphragmatic contractility and enhanced fatigue. In the part II study, hamsters were randomly allocated to one of six groups (n = 8 each): exposure to air for 6 days with saline (group A-S) or lidocaine infusion (group A-L), exposure to 100% oxygen for 5 days with saline (group 05-S) or lidocaine (group 05-L), and exposure to 100% oxygen for 6 days with saline (group 06-S) or lidocaine (group 06-L). Saline or lidocaine (2 mg/kg/hr) was subcutaneously given immediately before exposure to air or oxygen. Diaphragmatic contractility and fatigability were assessed in vitro using muscle strips excised from the costal diaphragms. Diaphragmatic levels of malondialdehyde (MDA), an index of free radical-mediated lipid peroxidation, were measured. These variables were compared between groups. MEASUREMENTS AND MAIN RESULTS:Twitch and tetanic tensions in groups 05-S and 06-S were reduced compared with group A-S. Tensions generated during fatigue trials were also decreased in groups 05-S and 06-S. MDA levels were elevated in diaphragms from these groups. In groups 05-L and 06-L, contractile dysfunction, deterioration of fatigability, and MDA formation in the diaphragm were attenuated. CONCLUSIONS:Lidocaine attenuated hyperoxia-induced diaphragmatic dysfunction assessed by contractile profiles and fatigability in hamsters. This beneficial effect may be attributable, in part, to inhibition of lipid peroxidation.
journal_name
Crit Care Medjournal_title
Critical care medicineauthors
Nishina K,Mikawa K,Shiga M,Kodama S,Kagawa T,Maekawa N,Obara Hdoi
10.1097/00003246-200006000-00048subject
Has Abstractpub_date
2000-06-01 00:00:00pages
1973-8issue
6eissn
0090-3493issn
1530-0293journal_volume
28pub_type
杂志文章abstract:OBJECTIVE:To investigate whether a redistribution of blood flow from the mucosa to the muscular layer of the intestinal wall contributes to the observed increased arterial-mucosal Pco2 gradient and the decreased mucosal tonometric pH during endotoxic shock. DESIGN:A prospective, controlled, animal study. SETTING:Anim...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199608000-00013
更新日期:1996-08-01 00:00:00
abstract:OBJECTIVE:To examine the relationship between aminoglycoside disposition kinetics and hemodynamic response to sepsis, as well as vital support therapy, in critically ill patients with sepsis. DESIGN:Cross-sectional study of critically ill patients with sepsis undergoing physiologic and aminoglycoside pharmacokinetic m...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199705000-00016
更新日期:1997-05-01 00:00:00
abstract:OBJECTIVE:To investigate the relationship between behavioral alterations and changes in monoaminergic systems provoked by ischemia-reperfusion liver injury in rats. DESIGN:Prospective, randomized, controlled animal study. SETTING:University animal laboratory. SUBJECTS:Male Wistar rats. INTERVENTIONS:Acute liver fai...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199804000-00021
更新日期:1998-04-01 00:00:00
abstract:OBJECTIVE:To investigate glycemic dynamics and its relation with mortality in critically ill patients. We searched for differences in complexity of the glycemic profile between survivors and nonsurvivors in patients admitted to a multidisciplinary intensive care unit. DESIGN:Prospective, observational study, convenien...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e3181ce49cf
更新日期:2010-03-01 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:OBJECTIVE:To review published studies of the influence of platelet factor 4 (PF4) and other cationic proteins on the generation of activated protein C (APC) by the thrombomodulin-protein C system. DATA SOURCE:Using the PubMed citation index, literature published from 1973 to 2003 regarding cationic proteins, PF4, and ...
journal_title:Critical care medicine
pub_type: 杂志文章,评审
doi:10.1097/01.ccm.0000126359.92825.e9
更新日期:2004-05-01 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:OBJECTIVES:The epidemiology of chronic critical illness is not well known. We aimed to estimate the prevalence, mortality, and costs associated with chronic critical illness in Japan. DESIGN:A nationwide inpatient administrative database study in Japan from April 2011 to March 2018. SETTING:Six hundred seventy-nine a...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000004723
更新日期:2021-01-01 00:00:00
abstract::The care of critically ill children has become more complex and demanding. This document establishes recommendations for developing regionalized integration of the care of these children into the emergency medical services system. These recommendations were developed by pediatricians with expertise in pediatric critic...
journal_title:Critical care medicine
pub_type: 共识发展会议,杂志文章,评审
doi:10.1097/00003246-200001000-00040
更新日期:2000-01-01 00:00:00
abstract::The definition of sepsis has been recently modified to accommodate emerging knowledge in the field, while at the same time being recognized as challenging, if not impossible, to define. Here, we seek to clarify the current understanding of sepsis as one that has been typically framed as a disorder of inflammation to o...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000002172
更新日期:2017-02-01 00:00:00
abstract::Eleven cases of renal failure associated with resection of ruptured abdominal aortic aneurysm and requiring hemodialysis are reported. Previously described series have emphasized the extremely high mortality rate in such patients. In our clinical experience, however, 8 of 11 consecutively treated patients with this cl...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-197902000-00006
更新日期:1979-02-01 00:00:00
abstract:BACKGROUND AND METHODS:A study was performed to examine the effects of the calcium-channel blocker levemopamil on neurologic outcome and neuropathology in a clinically relevant model of complete global cerebral ischemia (ventricular fibrillation in cats). Levemopamil was administered to cats starting 5 mins after resus...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199201000-00025
更新日期:1992-01-01 00:00:00
abstract:OBJECTIVE:Hypoxemic reperfusion attenuates brain injury secondary to severe cerebral ischemia, myocardial, and intestinal injury occurring in intestinal postischemic shock, and offers hemodynamic stabilization and attenuation of inflammatory response when applied in the resuscitation from hemorrhagic shock. In this stu...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e31819b81ec
更新日期:2009-03-01 00:00:00
abstract:OBJECTIVE:Carbon monoxide (CO), an endogenous byproduct of heme metabolism, is produced at high levels in injured tissue via induction of heme-oxygenase-1 activity, where it contributes to the modulation of proinflammatory processes. Alone, CO has potent anti-inflammatory effects in models of acute and chronic inflamma...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/01.ccm.0000166349.76514.40
更新日期:2005-06-01 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 examine variations in case-mix, structure, resource use, and outcome performance among teaching and nonteaching intensive care units (ICU). DESIGN:Prospective inception cohort study. PATIENTS:A consecutive sample of 15,297 patients at 35 hospitals, which compared 8,269 patients admitted to 20 teaching IC...
journal_title:Critical care medicine
pub_type: 杂志文章,多中心研究
doi:10.1097/00003246-199310000-00009
更新日期:1993-10-01 00:00:00
abstract:OBJECTIVE:Intravesical pressure measurement is considered to be the gold standard for the assessment of intra-abdominal pressure. However, this method is indirect and depends on a physiologic bladder function. We evaluated a modified piezoresistive technique and a water-capsule technique for direct and continuous intra...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/01.CCM.0000198526.04530.36
更新日期:2006-03-01 00:00:00
abstract:OBJECTIVE:To determine a meta-analytical definition of the discriminant power of Ranson's signs in the prediction of acute pancreatitis severity and outcome, and of their information content, also compared with clinical judgment. DATA SOURCES:Two hundred eleven studies since 1974, reporting any predictive system for a...
journal_title:Critical care medicine
pub_type: 杂志文章,meta分析
doi:10.1097/00003246-199910000-00035
更新日期:1999-10-01 00:00:00
abstract:OBJECTIVE:The use of corticosteroids in patients with sepsis or septic shock has been controversial for many decades. Clinical studies have reported beneficial, as well as negative results. We conducted a meta-analysis to assess the clinical evidence and to evaluate treatment effects in specific subgroups of patients. ...
journal_title:Critical care medicine
pub_type: 杂志文章,meta分析
doi:10.1097/00003246-199507000-00021
更新日期:1995-07-01 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:OBJECTIVE:This study determines whether acid-base data obtained in the emergency department correlate with outcome from major vascular injury. DESIGN:Observational, retrospective record review of trauma patients requiring vascular repair (torso or extremity, January 1988 to December 1997). Data included age, Injury Se...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/01.ccm.0000125517.28517.74
更新日期:2004-05-01 00:00:00
abstract:OBJECTIVES:To assess the variability in short-term sepsis mortality by hospital among Centers for Medicare and Medicaid Services beneficiaries in the United States during 2013-2014. DESIGN:A retrospective cohort design. SETTING:Hospitalizations from 3,068 acute care hospitals that participated in the Centers for Medi...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000003324
更新日期:2018-11-01 00:00:00
abstract:OBJECTIVE:To test the hypothesis that nebulized nitroprusside and inhaled nitric oxide would not differ in producing selective pulmonary vasodilation during hypoxia-induced pulmonary hypertension in piglets. SETTING:University laboratory. SUBJECTS:Five piglets. INTERVENTIONS:Piglets (n = 5) were anesthetized and ins...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-200211000-00026
更新日期:2002-11-01 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:OBJECTIVES:To identify the prevalence, risk factors, and outcomes of intra-abdominal hypertension in a mixed multicenter ICU population. DESIGN:Prospective observational study. SETTING:Fifteen ICUs worldwide. PATIENTS:Consecutive adult ICU patients with a bladder catheter. INTERVENTIONS:None. MEASUREMENTS AND MAIN...
journal_title:Critical care medicine
pub_type: 杂志文章,多中心研究
doi:10.1097/CCM.0000000000003623
更新日期:2019-04-01 00:00:00
abstract:BACKGROUND AND METHODS:In the present study, we evaluated the effect of N-acetylcysteine treatment in a nonseptic shock model induced by zymosan in the rat. Animals were randomly divided into eight groups (ten animals in each group). The first group was treated with ip administration of saline solution (0.90% NaCl) and...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199908000-00021
更新日期:1999-08-01 00:00:00
abstract:OBJECTIVE:To examine the value of laser bronchoscopy in patients with inoperable carcinoma of the lung who required ventilatory assistance for acute respiratory failure. DESIGN:Retrospective review of the medical records of all patients undergoing laser bronchoscopy. SETTING:The Lahey Clinic Medical Center, a tertiar...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199303000-00016
更新日期:1993-03-01 00:00:00
abstract:OBJECTIVE:To determine the feasibility of utilizing a scintigraphic technique to differentiate patients with adult respiratory distress syndrome due to sepsis syndrome from control volunteers and patients with congestive heart failure. Gamma scintigraphy was compared with chest roentgenograms to predict mortality rate ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199201000-00012
更新日期:1992-01-01 00:00:00
abstract:OBJECTIVES:Intensive insulin therapy with tight glucose control is known to result in reduced morbidity and mortality in inflammation-related critical illness. Tumor necrosis factor (TNF)-alpha induction in myocardial infarction may trigger inflammation and have detrimental effects on cardiomyocytes. This study was des...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e3181782335
更新日期:2008-05-01 00:00:00
abstract:OBJECTIVE:To simultaneously determine perceived vs. practiced adherence to recommended interventions for the treatment of severe sepsis or septic shock. DESIGN:One-day cross-sectional survey. SETTING:Representative sample of German intensive care units stratified by hospital size. PATIENTS:Adult patients with severe...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e318186b6f3
更新日期:2008-10-01 00:00:00