Abstract:
BACKGROUND:We have previously described a method for the precise delivery of inhaled nitric oxide (iNO) via a conventional, continuous-flow, pressure-limited, time-cycled ventilator. Because of the augmented effect of iNO decreasing pulmonary vascular resistance with high-frequency oscillatory ventilation (HFOV), we developed and bench tested a system that permits easy and accurate iNO delivery during HFOV. METHOD:The system uses a mass flow controller to deliver fixed volumes of iNO to the HFOV circuit in the range 0 to 20 ppm iNO. The accuracy of the delivery system is based on a comparison of the difference between iNO measured at strategic points in the circuit and the calculated true value. RESULTS:The mean difference between the measured and calculated value for iNO (n = 360) was -0.2+/-1.74 ppm (2 SD) (range, 0 to 20 ppm, 0 to 15 Hz). The formation of nitrogen dioxide was <1 ppm at the level of the endotracheal tube. CONCLUSION:The method tests the accuracy of iNO measurements and provides an assessment of the uncertainty over the range of iNO and HFOV settings used clinically.
journal_name
Crit Care Medjournal_title
Critical care medicineauthors
Espinosa RM,Marks KHdoi
10.1097/00003246-199911000-00038subject
Has Abstractpub_date
1999-11-01 00:00:00pages
2561-2issue
11eissn
0090-3493issn
1530-0293journal_volume
27pub_type
杂志文章abstract:OBJECTIVE:To cost adult intensive care by determining inputs to production, resource consumption per patient, and total cost per intensive care unit (ICU) stay. DESIGN:Prospective cost-accounting analysis of each patient stay in the ICU, over a 1-yr period. SETTING:An 11-bed, medical/surgical adult ICU, in a 932-bad ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199607000-00017
更新日期:1996-07-01 00:00:00
abstract::The right atrial pressure (Pra) was compared to the pulmonary capillary wedge pressure (Pcw) in 54 patients. In patients with heart disease, the correlation of Pra with Pcw was poor. However, in patients without clinical heart disease, Pra approximated Pcw, in both absolute number and change. This finding was independ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-197805000-00010
更新日期:1978-05-01 00:00:00
abstract:OBJECTIVE:Peripheral perfusion in critically ill patients frequently is assessed by use of clinical signs. Recently, the pulse oximetry signal has been suggested to reflect changes in peripheral perfusion. A peripheral perfusion index based on analysis of the pulse oximetry signal has been implemented in monitoring sys...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-200206000-00006
更新日期:2002-06-01 00:00:00
abstract:BACKGROUND:Acute lung injury (ALI) and its more severe form, acute respiratory distress syndrome (ARDS), are devastating disorders of overwhelming pulmonary inflammation and hypoxemia, resulting in high morbidity and mortality. AIM:To provide the clinician with a summary of the literature on the epidemiology, diagnosi...
journal_title:Critical care medicine
pub_type: 杂志文章,评审
doi:10.1097/CCM.0b013e3181aee5dd
更新日期:2009-08-01 00:00:00
abstract:OBJECTIVES:Evaluate clinicians' sentiments about participating in cardiac arrest resuscitations and identify factors associated with confidence in resuscitation of cardiac arrest. DESIGN:Electronic survey. SETTING:Twenty-one hospitals in Utah and Idaho. SUBJECTS:All attending physicians, residents, and nurses in a m...
journal_title:Critical care medicine
pub_type: 杂志文章,多中心研究
doi:10.1097/CCM.0000000000003612
更新日期:2019-03-01 00:00:00
abstract::Because determining cardiac output is difficult in premature infants, little is known about the hemodynamic effects of PEEP in this age group. We used pulsed-wave Doppler echocardiography to assess the hemodynamic effects of PEEP increments in ten premature infants with respiratory distress syndrome. At a PEEP of 4 cm...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198707000-00007
更新日期:1987-07-01 00:00:00
abstract:OBJECTIVE:To determine the impact of Acinetobacter baumannii (AB) acquisition in intensive care unit (ICU) patients on mortality and length of stay (LOS). DESIGN:Pairwise matched 1:1 case-control study. SETTING:Medical-surgical ICU in a tertiary health care institution. PATIENTS:During 16 months, all patients admitt...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199909000-00015
更新日期:1999-09-01 00:00:00
abstract:OBJECTIVE:To investigate the interrelationship between cardiac surgery, age, circulating concentrations of the vitamin D hormone 1,25-dihydroxyvitamin D, and clinical outcome. DESIGN:Prospective, monocentric, two-arm parallel study. SETTING:Tertiary Heart and Diabetes Center in the Federal State of North Rhine-Westph...
journal_title:Critical care medicine
pub_type: 临床试验,杂志文章
doi:10.1097/CCM.0b013e31824e8c42
更新日期:2012-07-01 00:00:00
abstract:OBJECTIVE:To determine whether a continuous intravenous infusion of pentoxifylline, a methylxanthine derivative, alters the serum cytokine concentrations and/or hemodynamic measurements in patients with septic shock. DESIGN:A prospective, randomized, double-blind, placebo-controlled study. SETTING:Medical intensive c...
journal_title:Critical care medicine
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00003246-199602000-00005
更新日期:1996-02-01 00:00:00
abstract::Human hemoglobin (Hb) solution is being developed for use as an oxygen-delivering resuscitation fluid. Substantial improvements in the general purity and quality of experimental Hb solutions have been achieved by recent research efforts. Hb solutions now appear to be free of the undesirable biological effects that wer...
journal_title:Critical care medicine
pub_type: 杂志文章,评审
doi:10.1097/00003246-198204000-00002
更新日期:1982-04-01 00:00:00
abstract:OBJECTIVES:Centers for Disease Control and Prevention built up new surveillance paradigms for the patients on mechanical ventilation and the ventilator-associated events, comprising ventilator-associated conditions and infection-related ventilator-associated complications. We assess 1) the current epidemiology of venti...
journal_title:Critical care medicine
pub_type: 杂志文章,多中心研究
doi:10.1097/CCM.0000000000001091
更新日期:2015-09-01 00:00:00
abstract::Assessment of creatinine clearance (CC) in ICU patients was compared using three methods. The reference method (CC 24 h) used measurements of serum creatinine and urinary creatinine after collection of urine over a 24-h period. The other two methods were predictive methods: the Kampmann nomogram and the formula develo...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199011000-00007
更新日期:1990-11-01 00:00:00
abstract:OBJECTIVES:Ventilator-associated pneumonia diagnosis remains a debatable topic. New definitions of ventilator-associated conditions involving worsening oxygenation have been recently proposed to make surveillance of events possibly linked to ventilator-associated pneumonia as objective as possible. The objective of the...
journal_title:Critical care medicine
pub_type: 杂志文章,随机对照试验
doi:10.1097/CCM.0000000000000674
更新日期:2015-01-01 00:00:00
abstract:OBJECTIVE:Clinical trial designs that randomize patients to fixed treatment regimens may disrupt preexisting relationships between illness severity and level of therapy. The practice misalignments created by such designs may have unintended effects on trial results and safety. METHODS:To illustrate this problem, the T...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/01.CCM.0000266584.40715.A6
更新日期:2007-06-01 00:00:00
abstract:OBJECTIVES:To investigate aortic functional alterations in the acute phase of aneurysmal subarachnoid hemorrhage and to evaluate the relationship between potential cardiovascular alterations and delayed cerebral infarctions or poor Glasgow Outcome Scale score at discharge from critical care unit. DESIGN:Prospective ob...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e31822e9fab
更新日期:2012-01-01 00:00:00
abstract:OBJECTIVES:Sepsis results in organ dysfunction caused by a dysregulated host response, in part related to the immune response of a severe infection. Mesenchymal stromal cells are known to modulate the immune response, and expression of stromal cell-derived factor-1 regulates mobilization of neutrophils from the bone ma...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000004244
更新日期:2020-05-01 00:00:00
abstract:OBJECTIVE:Blood loss and transfusion are frequent among patients undergoing liver surgery. Concerns have been raised about the safety and efficacy of transfusing stored blood. The influence of transfusing fresh vs. stored blood on the liver has not been studied to date. We tested the hypothesis that transfusion of stor...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e3182711b38
更新日期:2013-03-01 00:00:00
abstract:OBJECTIVE:To examine the effect of hypertonic saline on bacterial translocation and the number and function of natural killer and T cells in controlled hemorrhagic shock. DESIGN:Randomized controlled study. Duration of follow-up was 24 hrs. SETTING:University research laboratory. SUBJECTS:Adult male Sprague-Dawley r...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-200204000-00025
更新日期:2002-04-01 00:00:00
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...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e3181c03dfa
更新日期:2010-02-01 00:00:00
abstract:OBJECTIVE:This study determined the time course for inhibition of lipopolysaccharide-induced acute lung injury following a single dose of genistein. In addition, the study investigated whether a multiple dosing schedule with genistein retained the inhibitory effects on acute lung injury, nuclear factor-kappaB activatio...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/01.CCM.0000049941.84695.BA
更新日期:2003-02-01 00:00:00
abstract:OBJECTIVE:To examine the frequency of obtaining Institutional Review Board (IRB) approval and informed consent in critical care research. DATA SOURCES AND DATA EXTRACTION:One-year retrospective review of original critical care research in humans published in seven journals, including American Journal of Respiratory an...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199809000-00035
更新日期:1998-09-01 00:00:00
abstract:OBJECTIVE:Mitochondrial damage and dysfunction are thought to play an important role in the pathogenesis of sepsis-induced organ failures. Unfortunately, specific markers of mitochondrial damage in vital organs do not currently exist. Recently, carbomyl phosphate synthase (CPS)-1, a protein primarily localized to liver...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/01.CCM.0000230240.02216.21
更新日期:2006-09-01 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::Gastric mucosal damage produced by topical application of necrotizing agents is diminished by topical or systemic pretreatment with a variety of E and F prostaglandins. The rat restraint model of gastric mucosal injury is more analogous to clinical stress ulceration than are models using intragastric application of to...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198901000-00011
更新日期:1989-01-01 00:00:00
abstract:OBJECTIVES:To determine whether relative hyperglycemia was associated with in-hospital mortality in critically ill patients independent of other prognostic variables and whether this association is affected by background glycemia. DESIGN:Prospective observational study. SETTING:Mixed medical-surgical ICU in a metropo...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000004133
更新日期:2020-02-01 00:00:00
abstract:OBJECTIVES:To assess the specific host responses to systemic endotoxemia and tumor necrosis factor (TNF) activation after abdominal aortic aneurysm surgery by measuring antiendotoxin core antibodies (EndoCab) immunoglobulin (Ig)G and IgM, and soluble p55TNF receptor concentrations. The role of the gut in initiating the...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199709000-00013
更新日期:1997-09-01 00:00:00
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:OBJECTIVE:To determine the association of pulmonary artery catheter (PAC) use with in-hospital mortality. DESIGN:Prospective, observational study. SETTING:The medical intensive care units (MICU) of two teaching hospitals. METHODS:The study included 751 adults who were admitted to the MICU, excluding those who stayed...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-200106000-00010
更新日期:2001-06-01 00:00:00
abstract:OBJECTIVES:To compare the frequency and preventability of adverse drug events and potential adverse drug events in intensive care units (ICUs) and non-ICUs. To evaluate systems factors involving the individual caregivers, care unit teams, and patients involved in each adverse drug event by comparing ICUs with non-ICUs ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199708000-00014
更新日期:1997-08-01 00:00:00
abstract:OBJECTIVE:Using a modification of the Bohr equation, single-breath carbon dioxide capnography is a noninvasive technology for calculating physiologic dead space (V(D)/V(T)). The objective of this study was to identify a minimal V(D)/V(T) value for predicting successful extubation from mechanical ventilation in pediatri...
journal_title:Critical care medicine
pub_type: 临床试验,杂志文章
doi:10.1097/00003246-200006000-00059
更新日期:2000-06-01 00:00:00