Abstract:
:The recommended rates for closed-chest cardiac compressions during CPR are based on physiologic variations with increasing age rather than experimental data. Using puppies, we compared mean arterial pressure, cardiac index (CI), and cerebral blood flow (CBF) at a slow (40/min, group 1) and a rapid (120/min, group 2) rate. CBF was measured in all experiments by N2O uptake before and during CPR from cardiac arrest induced with KCl. Both CI and CBF were measured in half of the subjects with radiolabeled microspheres. Groups 1 and 2 were similar in terms of baseline mean weight, mean arterial pressure, CI, CBF, and arterial and venous blood gases. During resuscitation for group 1, the mean CI was 221 ml/min . m2, and the mean CBF was 4 ml/100 g . min determined by N2O uptake (2 ml/100 g.min by microspheres); in group 2, the respective means were 248 ml/min . m2 and 4 ml/100 g . min with both techniques. The values for mean CI and CBF (N2O or microspheres) did not differ significantly at either rate of compression. The N2O uptake and microsphere techniques for measuring CBF correlated closely during spontaneous cardiac contractions and mechanical chest compressions. We conclude that a) closed-chest cardiac compressions at either rate studied provided inadequate CBF, and b) the N2O uptake and microsphere techniques give similar measures of CBF under conditions of normal and low flow.
journal_name
Crit Care Medjournal_title
Critical care medicineauthors
Fleisher G,Delgado-Paredes C,Heyman Sdoi
10.1097/00003246-198710000-00009subject
Has Abstractpub_date
1987-10-01 00:00:00pages
939-43issue
10eissn
0090-3493issn
1530-0293journal_volume
15pub_type
杂志文章abstract::An emergency cricothyrotomy device was placed in 11 anesthetized dogs in order to assess airway damage and problems in placement, ventilation, and design. Posterior airway perforation without esophageal damage occurred in three animals. Submucosal hematomas or cricoid cartilage injury occurred in seven animals. As pla...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198702000-00016
更新日期:1987-02-01 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:To describe blood conservation strategies for critically ill patients. DATA SOURCES:By using a predefined strategy, we searched the electronic databases of Medline, EMBASE, CINAHL, the Cochrane database of systematic reviews, Cochrane central register of controlled trials, ACP Journal Club, Database of abstr...
journal_title:Critical care medicine
pub_type: 杂志文章,评审
doi:10.1097/01.CCM.0000099350.50651.46
更新日期:2003-12-01 00:00:00
abstract::To understand better the incidence and meaning of hyperamylasemia in the intensive care setting, cellulose acetate membrane electrophoresis was used to measure the isoenzymes of serum amylase in 192 patients with a variety of critical illnesses. Seventy of these patients had elevated serum amylase levels, but none had...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198507000-00003
更新日期:1985-07-01 00:00:00
abstract:OBJECTIVE:To determine the relationship between sublingual and intestinal mucosal microcirculatory perfusion. DESIGN:Observational, experimental study. SETTING:University-affiliated large animal laboratory. SUBJECTS:Ten fasted, anesthetized, mechanically ventilated, male pigs randomized to a sham group (n = 3) or to...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e3181b029c1
更新日期:2009-11-01 00:00:00
abstract::End tidal CO2 tension (PetCO2) and transcutaneous CO2 tension (PtcCO2) were compared with arterial CO2 (PaCO2) before and after withdrawal of mechanical ventilation in 20 patients predisposed to hypercarbia. With stable PaCO2 during mechanical ventilation, the correlation coefficient (r) between PaCO2 and PetCO2 was ....
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198708000-00011
更新日期:1987-08-01 00:00:00
abstract::Clonidine may be a source of serious toxicity when ingested by toddlers. We describe 11 cases of clonidine ingestion by toddlers (mean dose 0.15 mg/kg; range 0.01 to 0.57). The source of the clonidine was a grand-parent in six of 11 cases. Symptoms included altered level of consciousness (n = 11), miosis (n = 5), brad...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199010000-00014
更新日期:1990-10-01 00:00:00
abstract:OBJECTIVE:Perfluorocarbon liquid ventilation has been shown to enhance pulmonary mechanics and gas exchange in the setting of respiratory failure. To optimize the total liquid ventilation process, we developed a volume-limited, time-cycled liquid ventilatory support, consisting of an electrically actuated, microprocess...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-200005000-00038
更新日期:2000-05-01 00:00:00
abstract:BACKGROUND:Early excision with autograft-allograft closure is standard in severe burn management. Cadaver skin is associated with risks such as antigenicity, infection, and limited availability and shelf life. Previous studies have shown that Integra is safe to use in burns of <20% total body surface area. However, the...
journal_title:Critical care medicine
pub_type: 杂志文章,随机对照试验
doi:10.1097/01.CCM.0000285991.36698.E2
更新日期:2007-11-01 00:00:00
abstract:OBJECTIVE:Exosomes are small, cell-released vesicles (40-100 nm in size) with the potential to transfer proteins, lipids, small RNAs, messenger RNAs, or DNA between cells via interstitial fluids. Due to their role in tissue homeostasis, exosomes have emerged as a new type of therapeutic and diagnostic (theranostic) too...
journal_title:Critical care medicine
pub_type: 杂志文章,评审
doi:10.1097/CCM.0000000000002328
更新日期:2017-06-01 00:00:00
abstract:OBJECTIVE:The demand for intensive care beds far exceeds their availability in many European countries. Consequently, many critically ill patients occupy hospital beds outside intensive care units, throughout the hospital. The outcome of patients who fit intensive care unit admission criteria but are hospitalized in re...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/01.ccm.0000133021.22188.35
更新日期:2004-08-01 00:00:00
abstract::We previously reported increased lipid peroxide and decreased alpha-tocopherol levels in the blood of critically ill septic patients. To clarify these results, we investigated lipid peroxidation in experimental septic rats and severely traumatized rats. In septic rats, both platelet count and plasma alpha-tocopherol d...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198608000-00010
更新日期:1986-08-01 00:00:00
abstract:OBJECTIVE:To compare the effectiveness and safety of the hemoglobin-based nitric oxide scavenger, pyridoxalated hemoglobin polyoxyethylene, against placebo in patients with vasopressor-dependent distributive shock. DESIGN:Multicenter, randomized, placebo-controlled, open-label study. SETTING:Sixty-one participating I...
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.0000000000000554
更新日期:2015-01-01 00:00:00
abstract:OBJECTIVE:To assess the value of soluble triggering receptor expressed on myeloid cells-1 as a biomarker of infection in patients with neutropenic fever comparing with procalcitonin and C-reactive protein. DESIGN:Prospective, comparative, single-center study. SETTING:Hematology ward at a university hospital. SUBJECT...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e31820a92dc
更新日期:2011-05-01 00:00:00
abstract:OBJECTIVE:To determine the effect that acute physiologic derangements have on outcome after subarachnoid hemorrhage (SAH) and to design a composite score summarizing these abnormalities. DESIGN:Prospective observational study. SETTING:Neuroscience intensive care unit in a tertiary care academic center. PATIENTS:Cons...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/01.ccm.0000114830.48833.8a
更新日期:2004-03-01 00:00:00
abstract:OBJECTIVE:To determine recent trends in severe sepsis-related rates of hospitalization, mortality, and hospital case fatality in a large geographic area and to determine the impact of age, race, and gender on these outcomes. DESIGN:Trend analysis for the period of 1995 to 2002. SETTING:Acute care hospitals in New Jer...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/01.ccm.0000186748.64438.7b
更新日期:2005-11-01 00:00:00
abstract:OBJECTIVE:To determine the incidence and risk factors of chronic critical illness after severe blunt trauma. DESIGN:Prospective observational cohort study (NCT01810328). SETTING:Two level-one trauma centers in the United States. PATIENTS:One hundred thirty-five adult blunt trauma patients with hemorrhagic shock who ...
journal_title:Critical care medicine
pub_type: 杂志文章,多中心研究
doi:10.1097/CCM.0000000000002697
更新日期:2017-12-01 00:00:00
abstract:OBJECTIVE:To describe the philosophy and approach to patient care called evidence based medicine, and to highlight how it can enhance the practice of intensive care. DATA SOURCES:We searched MEDLINE, reference lists, and our personal files to identify relevant literature. STUDY SELECTION:Articles on intensive care pr...
journal_title:Critical care medicine
pub_type: 杂志文章,评审
doi:10.1097/00003246-199602000-00025
更新日期:1996-02-01 00:00:00
abstract:BACKGROUND AND METHODS:Twelve adult male albino rabbits were assigned alternately to normotensive and hypotensive groups to assess the effect of hypovolemic shock on spontaneous correction of dilutional coagulopathy. All animals underwent dilutional exchange transfusion with 200 mL of rabbit RBCs and 5% human albumin. ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199102000-00022
更新日期:1991-02-01 00:00:00
abstract:OBJECTIVE:Procalcitonin has been advocated as a specific biomarker for bacterial infection. We performed this study to determine whether accuracy of procalcitonin for diagnosis of postoperative bacterial infection is affected by renal function after aortic surgery. DESIGN:Single-center prospective study. SETTING:Univ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e3181692966
更新日期:2008-04-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to evaluate the long-term cardiopulmonary outcome at ages 10-15 yrs following neonatal extracorporeal membrane oxygenation (ECMO). The specific aims of the study were to assess baseline aerobic capacity, cardiac function, and pulmonary function in neonatal ECMO survivors using gr...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/01.CCM.0000084856.00372.CE
更新日期:2003-09-01 00:00:00
abstract::In order to examine the prognostic value of pulmonary arterial hypertension (PAH) in patients with moderate and severe acute respiratory failure (ARF), 225 patients with ARF who had been treated with mechanical ventilation and admitted to our ICU during a 3-yr period (January, 1983 to January, 1986) were prospectively...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198906000-00007
更新日期:1989-06-01 00:00:00
abstract:OBJECTIVES:To assess in-hospital neurologic (CNS) complications in adult patients undergoing veno-venous extracorporeal membrane oxygenation for respiratory failure. DESIGN:Retrospective analysis of the Extracorporeal Life Support Organization's data registry. SETTING:Data reported to Extracorporeal Life Support Orga...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000002502
更新日期:2017-08-01 00:00:00
abstract:OBJECTIVE:To evaluate the efficacy and tolerability of intravenous empiric treatment with meropenem compared with ceftazidime-tobramycin in patients with hospital-acquired lower respiratory tract infections. DESIGN:Prospective, nonblind, randomized trial. SETTING:Multicenter trial conducted at 22 centers. PATIENTS:T...
journal_title:Critical care medicine
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00003246-199710000-00015
更新日期:1997-10-01 00:00:00
abstract:OBJECTIVES:We examined recommendations within critical care guidelines to describe the pairing patterns for strength of recommendation and quality of evidence. We further identified recommendations where the reported strength of recommendation was strong while the reported quality of evidence was not high/moderate and ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000003467
更新日期:2019-01-01 00:00:00
abstract:OBJECTIVES:To investigate attitudes and practices regarding oxygen therapy in intensive care units (ICUs) and to devise quantitative descriptive indices. SETTING:Canadian university-affiliated adult ICUs. PARTICIPANTS:Fifty-two medical directors of ICUs in 48 institutions. INTERVENTION:Structured postal questionnair...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199912000-00033
更新日期:1999-12-01 00:00:00
abstract:OBJECTIVES:Maintenance of mean arterial pressure>65 mm Hg has been associated with improved clinical outcomes in many studies of critically ill patients. Current guidelines for the management of septic shock and guidelines for managing other critical illnesses suggest intra-arterial blood pressure measurement is prefer...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e3181fa057f
更新日期:2010-12-01 00:00:00
abstract:OBJECTIVE:Because anemia of inflammation is common in ICU patients and hepcidin is the key regulator of iron homeostasis, we examined time-dependent changes in hepcidin, erythropoietin, iron, and inflammatory markers in surgical ICU patients with anemia. DESIGN:Prospective single-center clinical noninterventional stud...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000003089
更新日期:2018-06-01 00:00:00
abstract:OBJECTIVE:Cortisol clearance is reduced in sepsis and may contribute to the development of impaired adrenocortical function that is thought to contribute to the pathophysiology of critical illness-related corticosteroid insufficiency. We sought to assess adrenocortical function using computer-assisted numerical modelin...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000000721
更新日期:2015-03-01 00:00:00
abstract:OBJECTIVE:To determine xanthine oxidase activity, free radical concentrations, and lipid peroxidation in patients with sepsis syndrome compared with noninfected critically ill patients. DESIGN:A prospective observational study. SETTING:A nine-bed intensive care unit in a university teaching hospital trust. PATIENTS:...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199610000-00008
更新日期:1996-10-01 00:00:00