Abstract:
OBJECTIVE:Pressure inflating the lung during mechanical ventilation is the difference between pressure applied at the airway opening (Pao) and pleural pressure (Ppl). Depending on the chest wall's contribution to respiratory mechanics, a given positive end-expiratory and/or end-inspiratory plateau pressure may be appropriate for one patient but inadequate or potentially injurious for another. Thus, failure to account for chest wall mechanics may affect results in clinical trials of mechanical ventilation strategies in acute respiratory distress syndrome. By measuring esophageal pressure (Pes), we sought to characterize influence of the chest wall on Ppl and transpulmonary pressure (PL) in patients with acute respiratory failure. DESIGN:Prospective observational study. SETTING:Medical and surgical intensive care units at Beth Israel Deaconess Medical Center. PATIENTS:Seventy patients with acute respiratory failure. INTERVENTIONS:Placement of esophageal balloon-catheters. MEASUREMENTS AND MAIN RESULTS:Airway, esophageal, and gastric pressures recorded at end-exhalation and end-inflation Pes averaged 17.5 +/- 5.7 cm H2O at end-expiration and 21.2 +/- 7.7 cm H2O at end-inflation and were not significantly correlated with body mass index or chest wall elastance. Estimated PL was 1.5 +/- 6.3 cm H2O at end-expiration, 21.4 +/- 9.3 cm H2O at end-inflation, and 18.4 +/- 10.2 cm H2O (n = 40) during an end-inspiratory hold (plateau). Although PL at end-expiration was significantly correlated with positive end-expiratory pressure (p < .0001), only 24% of the variance in PL was explained by Pao (R = .243), and 52% was due to variation in Pes. CONCLUSIONS:In patients in acute respiratory failure, elevated esophageal pressures suggest that chest wall mechanical properties often contribute substantially and unpredictably to total respiratory impedance, and therefore Pao may not adequately predict PL or lung distention. Systematic use of esophageal manometry has the potential to improve ventilator management in acute respiratory failure by providing more direct assessment of lung distending pressure.
journal_name
Crit Care Medjournal_title
Critical care medicineauthors
Talmor D,Sarge T,O'Donnell CR,Ritz R,Malhotra A,Lisbon A,Loring SHdoi
10.1097/01.CCM.0000215515.49001.A2subject
Has Abstractpub_date
2006-05-01 00:00:00pages
1389-94issue
5eissn
0090-3493issn
1530-0293journal_volume
34pub_type
杂志文章abstract:OBJECTIVE:Sepsis remains a major health threat in intensive care medicine. The renin-angiotensin system (ACE) affects inflammatory responses. In addition, angiotensin-converting enzyme inhibitors act to ameliorate lung injury. To investigate whether the widely used ACE inhibitor enalapril, used to treat hypertension, c...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e3181958d91
更新日期:2009-02-01 00:00:00
abstract:OBJECTIVE:To examine the role of platelets, fibrin, and adhesion molecules in mediating neutrophil-endothelial cell interactions in septic shock. DESIGN:Controlled experiments using phase contrast microscopy to examine neutrophil, platelet, and endothelial cell interactions in flowing cell suspensions under simulated ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/01.ccm.0000139918.80602.57
更新日期:2004-09-01 00:00:00
abstract:OBJECTIVE:The high incidence of lower lobe collapse in adult intensive care patients is well described. We aimed to document the incidence and distribution of acute lobar collapse in the pediatric intensive care setting. The influence of anatomical and pathophysiological differences between the adult and pediatric resp...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199908000-00035
更新日期:1999-08-01 00:00:00
abstract:OBJECTIVE:Supplementation with tetrahydrobiopterin, a nitric oxide synthase cofactor, may reduce microvascular endothelial dysfunction in severe sepsis. We studied whether tetrahydrobiopterin administration exerts beneficial effects in an ovine septic shock model. DESIGN:Randomized animal study. SETTING:University ho...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e31825b88ba
更新日期:2012-10-01 00:00:00
abstract:OBJECTIVES:Glucose is the primary substrate for the energy requirements of the nervous system. Nevertheless, administration of glucose to critically ill patients with central nervous system trauma may have adverse effects on their neurologic recovery. The purpose of this study was to evaluate the effects of other sourc...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:
更新日期:1994-11-01 00:00:00
abstract::Oral amiodarone's slow absorption handicaps rapid treatment of life-threatening arrhythmias. We used iv amiodarone to treat ten patients with hemodynamically significant atrial arrhythmias and life-threatening ventricular arrhythmias refractory to all conventional medical treatment. Arrhythmias were controlled in nine...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198509000-00012
更新日期:1985-09-01 00:00:00
abstract:OBJECTIVES:To review the reports of prolonged neuromuscular blockade secondary to vecuronium and atracurium administration. To propose mechanisms for prolonged blockade, as well as methods to avoid prolonged blockade. DATA SOURCES:A literature search was conducted of articles published from 1980 to 1993. Articles pert...
journal_title:Critical care medicine
pub_type: 杂志文章,评审
doi:10.1097/00003246-199405000-00028
更新日期:1994-05-01 00:00:00
abstract::To determine the influence of arachidonic acid metabolites on acute lung injury induced by glass bead embolism, two groups of animals were studied before and after the pulmonary artery pressure was doubled by glass bead embolism. One group represented an untreated time control (n = 6) while the second group (n = 6) wa...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198809000-00007
更新日期:1988-09-01 00:00:00
abstract:OBJECTIVES:Granulocyte transfusions have been used to treat immune cell dysfunction in sepsis. As granulocyte transfusions can trigger tissue injury via local effects of neutrophils, we hypothesized that extracorporeal treatment of plasma using granulocytes would prove beneficial while having less side effects. DESIGN...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e318194aa77
更新日期:2009-02-01 00:00:00
abstract:OBJECTIVE:To examine the accuracy of brain multimodal monitoring-consisting of intracranial pressure, brain tissue PO2, and cerebral microdialysis--in detecting cerebral hypoperfusion in patients with severe traumatic brain injury. DESIGN:Prospective single-center study. PATIENTS:Patients with severe traumatic brain ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000000720
更新日期:2015-02-01 00:00:00
abstract::A new device has been developed to estimate continuously and noninvasively cardiac output from the thoracic electrical bioimpedance (CObi). CObi was compared to cardiac output by thermodilution (COtd) in five anesthetized dogs. Blood pressure, blood volume, and blood flow were manipulated by hemorrhage and infusions o...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198603000-00013
更新日期:1986-03-01 00:00:00
abstract:OBJECTIVES:To evaluate the impact of an emergency department mechanical ventilation protocol on clinical outcomes and adherence to lung-protective ventilation in patients with acute respiratory distress syndrome. DESIGN:Quasi-experimental, before-after trial. SETTING:Emergency department and ICUs of an academic cente...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000002268
更新日期:2017-04-01 00:00:00
abstract::A safe, simple, reliable technique for sampling uncontaminated peripheral bronchial secretions in patients with endotracheal tubes has been developed. It is easily performed and requires no special training or equipment. This report summarizes the techniques's usefulness in providing diagnostic samples of peripheral a...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-197703000-00003
更新日期:1977-03-01 00:00:00
abstract:OBJECTIVES:To determine the incidence of enteral feed intolerance, identify factors associated with enteral feed intolerance, and assess the relationship between enteral feed intolerance and key nutritional and clinical outcomes in critically ill patients. DESIGN:Analysis of International Nutrition Survey database col...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000004712
更新日期:2021-01-01 00:00:00
abstract:OBJECTIVE:To determine daily amino acid and total protein losses in patients with acute renal failure receiving total parenteral nutrition (TPN) during treatment by continuous arteriovenous hemofiltration with hemodialysis (CAVHD). DESIGN:Prospective, nonrandomized study. SETTING:Patients in the ICU of a regional nep...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199112000-00012
更新日期:1991-12-01 00:00:00
abstract:OBJECTIVES:To outline both the preclinical and clinical data demonstrating surfactant alterations in acute lung injury, which provide the rationale for testing exogenous surfactant administration in this setting. We also review the results of the randomized, controlled clinical trials conducted to date that have evalua...
journal_title:Critical care medicine
pub_type: 杂志文章,评审
doi:10.1097/01.CCM.0000057911.19145.9F
更新日期:2003-04-01 00:00:00
abstract::Changes in pulmonary function and the development of atelectasis in the postoperative period have been well documented in the adult population. The use of incentive spirometry has been shown to be effective in the prevention of these postoperative complications. At the Hospital of Sick Children, we studied 17 children...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198208000-00009
更新日期:1982-08-01 00:00:00
abstract:OBJECTIVE:Citrate anticoagulation is an excellent alternative to heparin anticoagulation for critically ill patients requiring continuous renal replacement therapy. In this article, we provide a safe and an easy-to-handle citrate anticoagulation protocol with variable treatment doses and excellent control of the acid-b...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e3181a00a92
更新日期:2009-06-01 00:00:00
abstract:OBJECTIVE:Sepsis is associated with a marked depression of cellular immune function. The steroid hormone dehydroepiandrosterone (DHEA) is proposed to have immunoenhancing activities. We, therefore, investigated the effect of DHEA on the mortality rate and cellular immune functions in an experimental model of sepsis. D...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-200102000-00029
更新日期:2001-02-01 00:00:00
abstract::A polarographic conjunctival oxygen sensor was used to measure oxygen tension in a tissue bed supplied by the internal carotid artery. The shared vascular source of the conjunctiva and brain suggests that conjunctival PO2 monitoring may provide an index of cerebral perfusion. We studied the effects of hyperventilation...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198601000-00003
更新日期:1986-01-01 00:00:00
abstract:OBJECTIVE:To describe a severe axonal polyneuropathy that follows acute respiratory failure and, in turn, causes continued ventilator dependence and paralysis after resolution of the primary illness. DESIGN:Retrospective chart review of three patients and prospective analysis of two patients. SETTING:Respiratory and ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199302000-00020
更新日期:1993-02-01 00:00:00
abstract::Seven dogs with electromagnetic flow probes implanted on their main (QT) and left (QL) pulmonary arteries, had catheters placed in their left atria and pulmonary artery, and were ventilated via Carlen's double-lumen endotracheal tubes. The effect of high-frequency oscillation (HFO) on the redistribution of pulmonary b...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198405000-00008
更新日期:1984-05-01 00:00:00
abstract:OBJECTIVE:To determine the accuracy and reproducibility of four thermodilution indicators (5-mL room temperature, 10-mL room temperature, 5-mL iced, and 10-mL iced injectates) at clinically relevant flow rates. DESIGN:Quasi-experimental study. SETTING:Animal research laboratory of a health sciences university. SUBJE...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199304000-00021
更新日期:1993-04-01 00:00:00
abstract:OBJECTIVE:There is evidence to suggest that anemia after severe traumatic brain injury (sTBI) is detrimental. However, there is a paucity of evidence supporting the use of transfusion of packed red blood cells in patients with sTBI. To understand the acute effect of packed red blood cell transfusion on cerebral oxygena...
journal_title:Critical care medicine
pub_type: 杂志文章,随机对照试验
doi:10.1097/CCM.0b013e318194ad22
更新日期:2009-03-01 00:00:00
abstract:OBJECTIVE:To quantify glucose balance related to continuous arteriovenous hemofiltration (CAVH) when a glucose-rich replacement fluid is used for the plasma ultrafiltrate removed. DESIGN:Prospective, nonintervention study. SETTING:Medical/surgical and cardiac surgical intensive care units of a university hospital. P...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199308000-00014
更新日期:1993-08-01 00:00:00
abstract:OBJECTIVE:When treating patients with cardiac arrest with mild therapeutic hypothermia, a reliable and easy-to-use temperature probe is desirable. This study was conducted to investigate the accuracy and safety of tracheal temperature as a measurement of body temperature. DESIGN:Observational cohort study. SETTING:Em...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e3181e47a20
更新日期:2010-07-01 00:00:00
abstract:OBJECTIVE:To define the epidemiology of broad-spectrum cephalosporin-resistant gram-negative bacilli in intensive care units (ICUs) during a nonoutbreak period, including the prevalence, the risk factors for colonization, the frequency of acquisition, and the rate of infection. DESIGN:Prospective cohort study. SETTIN...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199906000-00026
更新日期:1999-06-01 00:00:00
abstract:OBJECTIVE:Heatstroke requires active body cooling and organ failure supportive care. Although heat waves are expected to recur over the next decades, little is known about the risk factors for mortality in heatstroke patients. We examined the prognosis and risk factors for hospital mortality in patients with heatstroke...
journal_title:Critical care medicine
pub_type: 评论,杂志文章,多中心研究
doi:10.1097/01.CCM.0000206469.33615.02
更新日期:2006-04-01 00:00:00
abstract:OBJECTIVE:To describe the symptom experiences of family members of patients at high risk for dying in the intensive care unit and to assess risk factors associated with higher symptom burden. DESIGN:Prospective, cross-sectional study. SETTING:Three intensive care units at a large academic medical center. PARTICIPANT...
journal_title:Critical care medicine
pub_type: 杂志文章,多中心研究
doi:10.1097/CCM.0b013e3181cf6d94
更新日期:2010-04-01 00:00:00
abstract::Hemodynamic, respiratory, and cerebral variables during 2 h of standard external CPR were studied in 5 dogs. In an additional 12 dogs, possible augmentation of these variables by Military Anti-Shock Trousers (MAST) was evaluated. In 9 dogs, external and internal cardiac massage were compared. During ventricular fibril...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198003000-00012
更新日期:1980-03-01 00:00:00