Abstract:
OBJECTIVE:To compare the oxidative stress induced by IV iron infusion in critically ill patients and in healthy volunteers. DESIGN:Multicenter, interventional study. SETTING:Two ICUs and one clinical research center. SUBJECTS:Anemic critically ill patients treated with IV iron and healthy volunteers. INTERVENTIONS:IV infusion of 100 mg of iron sucrose. MEASUREMENTS AND MAIN RESULTS:Thirty-eight anemic patients (hemoglobin, median [interquartile range] = 8.4 g/dL [7.7-9.2]) (men, 25 [66%]; aged 68 yr [48-77]; Simplified Acute Physiology Score II, 48.5 [39-59]) and 39 healthy volunteers (men, 18 [46%]; aged 42.1 yr [29-50]) were included. Blood samples were drawn before (H0) and 2, 6, and 24 hours (H2, H6, and H24) after a 60-minute iron infusion for the determination of nontransferrin bound iron, markers of lipid peroxidation-8α-isoprostanes, protein oxidation-advanced oxidized protein product, and glutathione reduced/oxidized. Iron infusion had no effect on hemodynamic parameter in patients and volunteers. At baseline, patients had much higher interleukin-6, C-reactive protein, and hepcidin levels. 8α-isoprostanes was also higher in patients at baseline (8.5 pmol/L [6.5-12.9] vs 4.6 pmol/L [3.5-5.5]), but the area under the curve above baseline from H0 to H6 was not different (p = 0.38). Neither was it for advanced oxidized protein product and nontransferrin bound iron. The area under the curve above baseline from H0 to H6 (glutathione reduced/oxidized) was lower in volunteers (p = 0.009). Eight patients had a second set of dosages (after the fourth iron infusion), showing higher increase in 8α-isoprostanes. CONCLUSIONS:In our observation, IV iron infusion does not induce more nontransferrin bound iron, lipid, or protein oxidation in patients compared with volunteers, despite higher inflammation, oxidative stress, and hepcidin levels and lower antioxidant at baseline. In contrary, iron induces a greater decrease in antioxidant, compatible with higher oxidative stress in volunteers than in critically ill patients.
journal_name
Crit Care Medjournal_title
Critical care medicineauthors
Lasocki S,Piednoir P,Couffignal C,Rineau E,Dufour G,Lefebvre T,Puy H,Duval X,Driss F,Schilte Cdoi
10.1097/CCM.0000000000001420subject
Has Abstractpub_date
2016-03-01 00:00:00pages
521-30issue
3eissn
0090-3493issn
1530-0293journal_volume
44pub_type
杂志文章,多中心研究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::Previous studies have confirmed the improved tolerance of a peptide enteral compared to standard enteral alimentation in hypoalbuminemic, critically ill patients. Animal studies, including hypoproteinemic, volume-expanded rats, demonstrated that the protein hydrolysate of a peptide enteral formula was responsible for ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198907000-00012
更新日期:1989-07-01 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:OBJECTIVES:The absence of N20 somatosensory evoked potential after cardiac arrest is related to poor outcome. However, discrimination between the low-amplitude and the absence of N20 is challenging. P25 and P30 are short-latency positive peaks with latencies between 25 and 30 ms following N20 (P25/30). P25/30 is eviden...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000003083
更新日期:2018-06-01 00:00:00
abstract:OBJECTIVES:Our primary goal was to evaluate the impact on in-hospital mortality rate of adequate empirical antibiotic therapy, after controlling for confounding variables, in a cohort of patients admitted to the intensive care unit (ICU) with sepsis. The impact of adequate empirical antibiotic therapy on early (<3 days...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/01.CCM.0000098031.24329.10
更新日期:2003-12-01 00:00:00
abstract:OBJECTIVES:To identify and appraise articles describing criteria used to prioritize or withhold a critical care admission. DATA SOURCES:PubMed, Embase, Medline, EBM Reviews, and CINAHL Complete databases. Gray literature searches and a manual review of references were also performed. Preferred Reporting Items for Syst...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000004624
更新日期:2020-11-01 00:00:00
abstract:OBJECTIVE:To determine the maternal morbidity and mortality in patients with eclampsia admitted to an intensive care unit (ICU), and to establish the efficacy of the Acute Physiology and Chronic Health Evaluation (APACHE) II score, the organ system failure score as defined by Knaus, and the Glasgow Coma Scale (GCS) sco...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-200001000-00020
更新日期:2000-01-01 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: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 autopsies performed on patients who die in the medical intensive care unit (ICU) provide clinically important new information. DESIGN:Retrospective review. SETTING:A 16-bed medical-coronary ICU. PATIENTS:Patients who underwent autopsy during a 1-yr period. INTERVENTIONS:Pre mortem diagnose...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199808000-00015
更新日期:1998-08-01 00:00:00
abstract:OBJECTIVES:Studies have shown contradicting results on the association of nursing workload and mortality. Most of these studies expressed workload as patients per nurse ratios; however, this does not take into account that some patients require more nursing time than others. Nursing time can be quantified by tools like...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000004005
更新日期:2020-01-01 00:00:00
abstract:OBJECTIVE:The administration of endotoxin to healthy humans reduces cerebral blood flow but its influence on dynamic cerebral autoregulation remains unknown. We considered that a reduction in arterial carbon dioxide tension would attenuate cerebral perfusion and improve dynamic cerebral autoregulation in healthy subjec...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e3182474ca7
更新日期:2012-06-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to determine whether changing heat and moisture exchangers (HMEs) every 96 hrs rather than 24 hrs would affect their efficacy to preserve the heat and moisture of inspiratory gases. The impact of a prolonged use of the HME on its microbial colonization was also assessed. DESIGN:Pros...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-200003000-00019
更新日期:2000-03-01 00:00:00
abstract:OBJECTIVES:Procalcitonin (PCT) has been described as an early, discriminating marker of bacteria-associated sepsis in patients. However, little is known of its source and actions, in part because no appropriate animal models have been available. We tested the hypothesis that plasma PCT increases during various pathophy...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-200011000-00021
更新日期:2000-11-01 00:00:00
abstract:OBJECTIVES:Hospitals use a variety of strategies to maximize the availability of limited ICU beds. Boarding, which involves assigning patients to an open bed in a different subspecialty ICU, is one such practice employed when ICU occupancy levels are high, and beds in a particular unit are unavailable. Boarding disrupt...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000002905
更新日期:2018-04-01 00:00:00
abstract::Twenty-seven surgical patients who developed post-extubation hypoxemia unresponsive to routine respiration therapy (incentive spirometry and chest physical therapy) received continuous positive airway pressure (CPAP) delivered through a mask at an inspired oxygen fraction (FIO2) of 0.45. All patients responded with an...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198501000-00012
更新日期:1985-01-01 00:00:00
abstract:OBJECTIVES:Preclinical studies reveal the neuroprotective properties of xenon, especially when combined with hypothermia. The purpose of this study was to investigate the feasibility and cardiac safety of inhaled xenon treatment combined with therapeutic hypothermia in out-of-hospital cardiac arrest patients. DESIGN:A...
journal_title:Critical care medicine
pub_type: 杂志文章,随机对照试验
doi:10.1097/CCM.0b013e31828a4337
更新日期:2013-09-01 00:00:00
abstract:OBJECTIVES:To compare 1-year all-cause mortality and major adverse cardiovascular events in cardiac arrest survivors with and without posttraumatic stress disorder symptomatology at hospital discharge. DESIGN:Prospective, observational cohort. SETTING:ICUs at a tertiary-care center. PATIENTS:Adults with return of sp...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000003713
更新日期:2019-06-01 00:00:00
abstract::Little is known about the structure and objectives of various hospital ethics committees due to their need to preserve confidentiality, their reluctance to reveal internal hospital problems, and their concern about becoming involved in the developing debate about the appropriate role and value of such committees. The ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198211000-00018
更新日期:1982-11-01 00:00:00
abstract:OBJECTIVES:Ethicists advise that life-sustaining treatment decisions should be made in keeping with patient preferences. Until recently, there has been little systematic study of the impact of patient preferences on the use of various life-sustaining treatments or the consequent cost of hospital care. This prospective ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199611000-00009
更新日期:1996-11-01 00:00:00
abstract:OBJECTIVE:To examine the efficacy of iontophoretic delivery of calcium to experimental hydrofluoric acid burns. DESIGN:Prospective, controlled study. SETTING:Institutional laboratory. SUBJECTS:Male nude rats. INTERVENTIONS:For the in vitro experiment, a full-thickness skin from the back was set in a vertical flow-t...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-200108000-00013
更新日期:2001-08-01 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:OBJECTIVES:To determine if prior total body hyperthermia protected against subsequent acute ileitis induced by the cytotoxic lectin, ricin, in rats. The time course of heat shock mRNA and protein expression in the ileum was determined. The effects of heat stress on small intestinal mucosal integrity, arachidonic acid m...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199702000-00020
更新日期:1997-02-01 00:00:00
abstract:OBJECTIVE:Neutropenia recovery may be associated with an increased risk of respiratory function deterioration. A history of pneumonia complicating neutropenia has been identified as the leading cause of adult respiratory distress syndrome during neutropenia recovery in patients receiving anticancer chemotherapy, sugges...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-200301000-00025
更新日期:2003-01-01 00:00:00
abstract::Ischemia of the intestines damages the permeability of the intestinal wall, allowing lipopolysaccharide (LPS) (endotoxin) to leak from the gut lumen into the blood circulation, causing shock and death. We measured LPS levels associated with corticosteroid treatment vs. no treatment in cats whose superior mesenteric ar...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198610000-00012
更新日期:1986-10-01 00:00:00
abstract:OBJECTIVES:To evaluate the preload dependence of femoral maximal change in pressure over time (dP/dtmax) during volume expansion in preload dependent and independent critically ill patients. DESIGN:Retrospective database analysis. SETTING:Two adult polyvalent ICUs. PATIENTS:Twenty-five critically ill patients with a...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000004515
更新日期:2020-10-01 00:00:00
abstract::This study was undertaken to investigate ventilatory requirements during high frequency ventilation (HFV). Six anesthetized dogs were ventilated with bird M-2 or Emerson 2-V ventilators at respiratory rates (RRs) ranging from 13-1300 breath/min. PaCO2 was maintained within normal range at all rates by tidal volume (VT...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198303000-00005
更新日期:1983-03-01 00:00:00
abstract:OBJECTIVES:To compare usual care with a proactive case-finding approach for critically ill patients with terminal dementia using an inpatient palliative care service. DESIGN:Prospective comparison to historical control. SETTING:Urban, university-affiliated hospital. PATIENTS:Total of 52 men and women with end-stage ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/01.ccm.0000138560.56577.88
更新日期:2004-09-01 00:00:00
abstract:OBJECTIVE:Anecdotal reports suggest that propofol (Diprivan) may stimulate mucus hypersecretion in patients without pulmonary disease. The purpose of this study was to evaluate the effect of methohexital or propofol anesthesia on the physical and transport properties of airway mucus in spontaneously breathing dogs. DE...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-200105000-00035
更新日期:2001-05-01 00:00:00
abstract:OBJECTIVE:To test the hypothesis that therapeutic hypercapnia enhances the proinflammatory responses to endotoxemia in the lung and spleen of rats. DESIGN:Prospective randomized study. SETTINGS:Hospital research institute. SUBJECTS:Forty-eight adult male rats. INTERVENTIONS:Rats were randomly assigned for a 24-hr p...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e31820ee1f2
更新日期:2011-06-01 00:00:00