Abstract:
OBJECTIVE:To explore the hypothesis that beta-1 adrenoreceptor blockade may be protective through the attenuation of sympathetic hyperactivity and catecholaminergic inflammatory effects on cardiac and hepatic function. DESIGN:Prospective, randomized, controlled study. SETTING:Animal laboratory in a university medical center. SUBJECTS:Male adult Wistar rats. INTERVENTIONS:Peripheral beta1-adrenoceptor blockade through daily intraperitoneal injection (metoprolol, 100 mg x kg(-1); atenolol, 6 mg x kg(-1)) or central nervous system beta1-adrenoceptor blockade (intracerebroventricular metoprolol, 25 microg) to achieve approximately 20% heart rate reduction in rats for 2 days before or after the induction of lethal endotoxemia, cecal ligation and puncture, or fecal peritonitis. MEASUREMENTS AND MAIN RESULTS:Peripheral beta1-adrenoceptor blockade established for 2 days before lethal endotoxemia markedly improved survival in both metoprolol-treated (n = 16; log rank test, p = .002) and atenolol-treated (n = 15; p = .03) rats. Overall mortality in cecal ligation and puncture was similar between metoprolol (40%; n = 10) and saline (50%; n = 10) pretreatment (p = .56), but the median time to death was increased by 33 hrs in metoprolol-treated rats (p = .03). Metoprolol pretreatment reduced hepatic expression of proinflammatory cytokines and lowered plasma interleukin-6 (both p < .05). Myocardial protein expression of interleukin-18 and monocyte chemoattractant protein-1, key mediators of cardiac dysfunction in sepsis, were also reduced (p < .05). Peripheral beta1-adrenoceptor blockade commenced 6 hrs after lethal endotoxemia or fecal peritonitis did not improve survival. However, arterial blood pressure was preserved and left ventricular contractility restored similar to that found in nonseptic controls. Central nervous system beta1-adrenoceptor blockade (metoprolol) did not reduce plasma cytokines or mortality, despite enhancing parasympathetic tone. CONCLUSIONS:Peripheral beta1-adrenoceptor blockade offers anti-inflammatory and cardioprotective effects, with mortality reduction if commenced before a septic insult. Its role in sepsis should be explored further.
journal_name
Crit Care Medjournal_title
Critical care medicineauthors
Ackland GL,Yao ST,Rudiger A,Dyson A,Stidwill R,Poputnikov D,Singer M,Gourine AVdoi
10.1097/CCM.0b013e3181c03dfasubject
Has Abstractpub_date
2010-02-01 00:00:00pages
388-94issue
2eissn
0090-3493issn
1530-0293journal_volume
38pub_type
杂志文章abstract::Trauma is the leading cause of both morbidity and mortality in the pediatric population, and traumatic injury causes > 50% of all childhood deaths. Significant mortality rates have been reported for children with traumatic brain injury. Although children have better survival rates as compared with adults with traumati...
journal_title:Critical care medicine
pub_type: 杂志文章,评审
doi:10.1097/00003246-200211001-00003
更新日期:2002-11-01 00:00:00
abstract::Twenty preterm infants in respiratory distress, each with an umbilical catheter in place, were studied during their first 24 h of hospitalization, to determine the effects of continuous transcutaneous oxygen (PtcO2) monitoring on the frequency of arterial blood gas (ABG) determinations and on the incidence of hypoxia ...
journal_title:Critical care medicine
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00003246-198402000-00009
更新日期:1984-02-01 00:00:00
abstract::Factors responsible for determining the position of the oxyhemoglobin equilibrium curve during the neonatal period are briefly reviewed and the clinical implications of these changes are examined. Two clinical trials employing exchange transfusions as an adjunct to conventional therapy of the severe respiratory distre...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-197909000-00013
更新日期:1979-09-01 00:00:00
abstract:OBJECTIVE:Quality of care for patients admitted with pneumonia varies across hospitals, but causes of this variation are poorly understood. Whether hospitals with high ICU utilization for patients with pneumonia provide better quality care is unknown. We sought to investigate the relationship between a hospital's ICU a...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000000925
更新日期:2015-06-01 00:00:00
abstract:OBJECTIVES:To evaluate the association between length of ICU stay and 1-year mortality for elderly patients who survived to hospital discharge in the United States. DESIGN:Retrospective cohort study of a random sample of Medicare beneficiaries who survived to hospital discharge, with 1- and 3-year follow-up, stratifie...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000001480
更新日期:2016-04-01 00:00:00
abstract:OBJECTIVE:In rodent models, enhanced formation of nitric oxide and formation of peroxynitrite have been implicated in the pathogenesis of various forms of shock. Here we examined the effect of mercaptoethylguanidine (MEG), an inducible nitric oxide synthase inhibitor and peroxynitrite scavenger, in a severe hemorrhagic...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199907000-00027
更新日期:1999-07-01 00:00:00
abstract:OBJECTIVE:The first 70 years of critical care can be considered a period of "industrial revolution-like" advancement in terms of progressing the understanding and care of critical illness. Unfortunately, like the industrial revolution's impact on the environment, advancing ICU care of increasingly elderly, immunosuppre...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000004783
更新日期:2021-02-01 00:00:00
abstract::Malaria is one of the most common infectious diseases in the world, and severe respiratory complications have been described mainly in association with Plasmodium falciparum. We describe a case of acute respiratory distress syndrome complicating infection with P. vivax in the setting of relatively low parasitemia in a...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-200103000-00037
更新日期:2001-03-01 00:00:00
abstract:OBJECTIVE:With limited community services, the complex rehabilitation period after critical illness is often the responsibility of family members who, as a result, may experience negative health outcomes. The objectives of this research were to a) identify aspects of the caregiving situation that are associated with ca...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/01.ccm.0000190428.71765.31
更新日期:2006-01-01 00:00:00
abstract:OBJECTIVES:Increasing time to mechanical ventilation and high-flow nasal cannula use may be associated with mortality in coronavirus disease 2019. We examined the impact of time to intubation and use of high-flow nasal cannula on clinical outcomes in patients with coronavirus disease 2019. DESIGN:Retrospective cohort ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000004600
更新日期:2020-11-01 00:00:00
abstract:OBJECTIVE:To determine the limits of agreement between the cardiac output and volumetric data estimated by impedance cardiography with the cardiac output determined by thermodilution and the left ventricular ejection fraction and end-diastolic volume estimated from left ventriculography. DESIGN:A prospective study. S...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199709000-00023
更新日期:1997-09-01 00:00:00
abstract:OBJECTIVE:To review the anti-inflammatory and anti-apoptotic properties of drotrecogin alfa (activated) (recombinant human activated protein C), emphasizing its modulatory effects on endothelial nuclear factor-kappaB. We propose a broad anti-inflammatory effect of drotrecogin alfa (activated), acting on both endotheliu...
journal_title:Critical care medicine
pub_type: 杂志文章,评审
doi:10.1097/00003246-200205001-00019
更新日期:2002-05-01 00:00:00
abstract:OBJECTIVE:To describe critical illnesses that occur commonly in patients with human immunodeficiency virus (HIV) infection. METHODS:We reviewed and summarized the literature on critical illness in HIV infection using a computerized MEDLINE search. SUMMARY:In the last 10 yrs, our perception of HIV infection and acquir...
journal_title:Critical care medicine
pub_type: 杂志文章,评审
doi:10.1097/01.CCM.0000232491.15369.AB
更新日期:2006-09-01 00:00:00
abstract:OBJECTIVE:To test whether intensive care unit (ICU) nasal screening for methicillin-resistant Staphylococcus aureus (MRSA) predicts the presence or absence of MRSA infections requiring antimicrobial treatment. DESIGN:A prospective cohort study. SETTING:Medical ICU at Barnes-Jewish Hospital, a 1252-bed urban teaching ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e3181eeda3f
更新日期:2010-10-01 00:00:00
abstract:OBJECTIVES:To address the association between the 2003 heat wave in Paris (France) and the occurrence of out-of-hospital cardiac arrest. DESIGN:: An analysis of the interventions of the medical mobile intensive care units of the City of Paris for out-of-hospital cardiac arrest and prehospital myocardial infarctions, w...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e3181b0868f
更新日期:2009-12-01 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:To test the hypothesis that PaCO2 levels generated during permissive hypercapnia may enhance arterial oxygenation, when ventilation is maintained. DESIGN:Prospective study. SETTING:Research laboratory in a hospital. SUBJECTS:One group of eight mongrel dogs (four male; four female). INTERVENTIONS:The dogs ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199811000-00030
更新日期:1998-11-01 00:00:00
abstract:CONTEXT:The results of studies on noninvasive positive pressure ventilation (NPPV) for acute hypoxemic respiratory failure unrelated to cardiogenic pulmonary edema have been inconsistent. OBJECTIVE:To assess the effect of NPPV on the rate of endotracheal intubation, intensive care unit and hospital length of stay, and...
journal_title:Critical care medicine
pub_type: 杂志文章,评审
doi:10.1097/01.ccm.0000148011.51681.e2
更新日期:2004-12-01 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:OBJECTIVE:Most studies have assessed conflict between clinicians and surrogate decision makers in ICUs from only clinicians' perspectives. It is unknown if surrogates' perceptions differ from clinicians'. We sought to determine the degree of agreement between physicians and surrogates about conflict and to identify pre...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e3182a27598
更新日期:2014-02-01 00:00:00
abstract::A patient with brainstem infarction met the clinical criteria for brain death but had persistent EEG activity, complicating our decision to withdraw life support. We evaluated cerebral blood flow with xenon-enhanced computed tomography (Xe/CT), which documented the absence of posterior circulation flow and persistent,...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198705000-00014
更新日期:1987-05-01 00:00:00
abstract:OBJECTIVE:To evaluate the prognostic value of short-latency median nerve somatosensory evoked potentials and brainstem auditory evoked potentials in outcome prediction for comatose cardiac arrest patients treated with hypothermia. DESIGN:Prospective, randomized, controlled trial of mild hypothermia after out-of-hospit...
journal_title:Critical care medicine
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/01.ccm.0000171536.63641.d9
更新日期:2005-08-01 00:00:00
abstract:OBJECTIVE:To determine the effects of stimulation of vascular dopaminergic receptor subtype 1 (dopamine-1) receptors in the renal and mesenteric vascular beds of a neonatal model. DESIGN:Prospective, unblinded, dose-response evaluation in an awake animal. SETTING:University research laboratory. SUBJECTS:Thirty newbo...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199610000-00018
更新日期:1996-10-01 00:00:00
abstract:OBJECTIVES:To develop a predictive equation to estimate the frequency of blood drawing for intensive care unit (ICU) laboratory tests and to evaluate variations in ICU blood sampling practices after adjusting for patient and institutional factors. DESIGN:Prospective, inception, cohort study. SETTING:Forty-two ICUs in...
journal_title:Critical care medicine
pub_type: 杂志文章,多中心研究
doi:10.1097/00003246-199705000-00006
更新日期:1997-05-01 00:00:00
abstract:OBJECTIVE:To validate performance characteristics of the intensive care unit (ICU) admission mortality probability model, version III (MPM0-III) on Project IMPACT data submitted in 2004 and 2005. This data set was external from the MPM0-III developmental and internal validation data collected between 2001 and 2004. DE...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e31819ded31
更新日期:2009-05-01 00:00:00
abstract:BACKGROUND:Remarkable progress has been made during the last decade in defining the molecular mechanisms that underlie septic shock. This rapidly expanding field is leading to new therapeutic opportunities in the management of severe sepsis. AIM:To provide the clinician with a timely summary of the molecular biology o...
journal_title:Critical care medicine
pub_type: 杂志文章,评审
doi:10.1097/CCM.0b013e31819267fb
更新日期:2009-01-01 00:00:00
abstract:OBJECTIVE:Circulating serum levels of procalcitonin rise significantly during bacterial infection. Because calcitonin is known to be a monocyte chemoattractant, we investigated whether procalcitonin, a prohormone of calcitonin, also affects leukocyte migration. DESIGN:Prospective, controlled in vitro study. SETTING:U...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-200205000-00025
更新日期:2002-05-01 00:00:00
abstract:OBJECTIVE:To determine the number of adult or pediatric intensive care unit patients without documented invasive fungal infection who receive systemic antifungal therapy. DESIGN:A 1-day cross-sectional cohort study. SETTING:One hundred sixty-nine intensive care units in France and Belgium. PATIENTS:All patients stay...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e318236f297
更新日期:2012-03-01 00:00:00
abstract:OBJECTIVES:Neurologic damage following cardiac arrest remains a major burden for modern resuscitation medicine. Cardiopulmonary resuscitation with extracorporeal circulatory support holds the potential to reduce morbidity and mortality. Furthermore, the endogenous gasotransmitter carbon monoxide attracts attention in r...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000004242
更新日期:2020-04-01 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