Abstract:
OBJECTIVE:To assess the effects of step-changes in tidal volume on work of breathing during lung-protective ventilation in patients with acute lung injury (ALI) or the acute respiratory distress syndrome (ARDS). DESIGN:Prospective, nonconsecutive patients with ALI/ARDS. SETTING:Adult surgical, trauma, and medical intensive care units at a major inner-city, university-affiliated hospital. PATIENTS:Ten patients with ALI/ARDS managed clinically with lung-protective ventilation. INTERVENTIONS:Five patients were ventilated at a progressively smaller tidal volume in 1 mL/kg steps between 8 and 5 mL/kg; five other patients were ventilated at a progressively larger tidal volume from 5 to 8 mL/kg. The volume mode was used with a flow rate of 75 L/min. Minute ventilation was maintained constant at each tidal volume setting. Afterward, patients were placed on continuous positive airway pressure for 1-2 mins to measure their spontaneous tidal volume. MEASUREMENTS AND MAIN RESULTS:Work of breathing and other variables were measured with a pulmonary mechanics monitor (Bicore CP-100). Work of breathing progressively increased (0.86 +/- 0.32, 1.05 +/- 0.40, 1.22 +/- 0.36, and 1.57 +/- 0.43 J/L) at a tidal volume of 8, 7, 6, and 5 mL/kg, respectively. In nine of ten patients there was a strong negative correlation between work of breathing and the ventilator-to-patient tidal volume difference (R = -.75 to -.998). CONCLUSIONS:: The ventilator-delivered tidal volume exerts an independent influence on work of breathing during lung-protective ventilation in patients with ALI/ARDS. Patient work of breathing is inversely related to the difference between the ventilator-delivered tidal volume and patient-generated tidal volume during a brief trial of unassisted breathing.
journal_name
Crit Care Medjournal_title
Critical care medicineauthors
Kallet RH,Campbell AR,Dicker RA,Katz JA,Mackersie RCdoi
10.1097/01.ccm.0000194538.32158.afsubject
Has Abstractpub_date
2006-01-01 00:00:00pages
8-14issue
1eissn
0090-3493issn
1530-0293pii
00003246-200601000-00002journal_volume
34pub_type
杂志文章abstract::Vecuronium's short half-life and minimal cardiopulmonary side-effects make it a suitable drug for continuous infusion. Vecuronium is used frequently in critically ill patients to increase their total compliance and to minimize the adverse effects of mechanical ventilation. This crossover, prospective study evaluates t...
journal_title:Critical care medicine
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00003246-198910000-00004
更新日期:1989-10-01 00:00:00
abstract::Healthcare systems spend considerable resources collecting and processing blood cultures for the detection of blood stream pathogens. The process is initiated with the collection of blood cultures that depend upon proper skin disinfection, collection of an adequate number of specimens and volume of blood, and prompt p...
journal_title:Critical care medicine
pub_type: 杂志文章,评审
doi:10.1097/CCM.0b013e318270e771
更新日期:2012-12-01 00:00:00
abstract:OBJECTIVE:To discuss the potential therapeutic value of intraluminal oxygenation of the gut in critical illness. DATA SOURCES:Relevant articles published in the English language literature. STUDY SELECTION:No special study has been carried out for the present presentation. DATA EXTRACTION:Information from the litera...
journal_title:Critical care medicine
pub_type: 杂志文章,评审
doi:10.1097/00003246-199302001-00012
更新日期:1993-02-01 00:00:00
abstract:OBJECTIVE:Significant mortality in patients with sepsis results from the development of multiple organ dysfunction syndrome. Small-volume resuscitation with 7.5% NaCl hypertonic saline has been proposed to restore physiologic hemodynamics in hemorrhagic shock. Therefore, we hypothesized that hypertonic saline resuscita...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e318173f982
更新日期:2008-06-01 00:00:00
abstract::It has become accepted that nitric oxide serves important functions in biological systems as a second messenger. Another diatomic gaseous molecule, carbon monoxide (CO), is also rapidly gaining acceptance as a signaling agent. Some of the activities of CO are analogous to those of nitric oxide in the vascular system a...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:
更新日期:2001-01-01 00:00:00
abstract::Pulmonary barotrauma developed in 18/430 patients receiving respirator support for longer than 12 hours. Pneumothorax occurred in 15 of these patients and was treated with tube thoracostomy and 15-20 cm H2O pleural suction. Full reexpansion of the lungs were achieved in all but three patients, two of whom had bronchop...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-197503000-00004
更新日期:1975-03-01 00:00:00
abstract:OBJECTIVES:The aim of this study was to highlight the link between induced hypothermia and increased survival duration as observed in the septic model developed by the laboratory. To reach this objective, survival duration and blood oxygen transport capacity were measured at two temperatures-38 °C (induced normothermia...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e3182373134
更新日期:2012-03-01 00:00:00
abstract::PEEP is the most important therapeutic intervention in the management of acute respiratory failure. Transitory PEEP disconnection to perform clinically relevant maneuvers is often necessary, but its effect upon PaO2 and physiological shunt in patients requiring high-level PEEP is not clear from the literature. Nine ad...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-197902000-00003
更新日期:1979-02-01 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:Several studies have suggested that intravenous hydroxyethyl starch treatment may dampen acute inflammatory responses. It is well documented that limited oxygen delivery to tissues (hypoxia) is common in acute inflammation, and numerous parallels exist between acute responses to hypoxia and to inflammation, i...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/01.CCM.0000218814.77568.BC
更新日期:2006-06-01 00:00:00
abstract::Biological systems are innately complex, display nonlinear behavior, and respond to both disease and its treatment in similar complex ways. Complex systems display self-organization and predictive behavior along a range of possible states, often referred to as chaotic behavior, and can be both characterized and quanti...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e3181f24484
更新日期:2010-10-01 00:00:00
abstract:OBJECTIVE:To determine the effects of a hydroxyethyl starch-deferoxamine conjugate on hepatic microcirculation in an isobaric, anesthetized rat model of hemorrhagic shock and asanguineous resuscitation. DESIGN:Prospective, randomized, controlled study. SETTING:Laboratory at a university hospital. SUBJECTS:Twenty-thr...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199502000-00018
更新日期:1995-02-01 00:00:00
abstract:OBJECTIVE:To determine the functionality of identified polymorphisms in the promoter and upstream regions of the interleukin-10 gene in terms of release of interleukin-10 from lipopolysaccharide-stimulated whole blood from healthy volunteers and to evaluate the relationship of interleukin-10 polymorphisms to interleuki...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-200301000-00005
更新日期:2003-01-01 00:00:00
abstract:OBJECTIVES:Increasing age is a well-recognized risk factor for in-hospital mortality in patients receiving extracorporeal membrane oxygenation for cardiogenic shock, but the shape of this relationship is unknown. In addition, the impact of age on hospital length of stay, patterns of patient disposition, and costs has b...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000003631
更新日期:2019-03-01 00:00:00
abstract::Standard cardiopulmonary-cerebral resuscitation fails to achieve restoration of spontaneous circulation in approximately 50% of normovolemic sudden cardiac arrests outside hospitals and in essentially all victims of penetrating truncal trauma who exsanguinate rapidly to cardiac arrest. Among cardiopulmonary-cerebral r...
journal_title:Critical care medicine
pub_type: 杂志文章,评审
doi:10.1097/00003246-200011001-00012
更新日期:2000-11-01 00:00:00
abstract:OBJECTIVE:To determine the frequency, etiology, and risk factors of ventilator-associated pneumonia (VAP) and purulent tracheobronchitis (TBX) in patients who have undergone heart surgery. To study the predictive role of systematic surveillance cultures. DESIGN:Prospective study. SETTING:Heart surgery intensive care ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/01.ccm.0000084807.15352.93
更新日期:2003-07-01 00:00:00
abstract::Doppler ultrasound has been used extensively in assessing adequacy of circulation. We have found it to be convenient in the identification of blood flow, particularly in hypotensive states where percutaneous radial artery cannulation of the vessel is tedious and difficult to perform. The technique is simple, atraumati...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-197611000-00011
更新日期:1976-11-01 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: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 test the hypothesis that trauma-hemorrhagic shock (T/HS)-induced changes in red blood cells (RBC) contribute to the reduction of blood flow in distant organs. DESIGN:Laboratory study. SETTING:Academic medical center laboratory. SUBJECTS:Specific pathogen-free male Sprague-Dawley rats weighing between 25...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e3181962d39
更新日期:2009-03-01 00:00:00
abstract:INTRODUCTION:Ventilator settings for patients with severe acute respiratory distress syndrome supported by venovenous extracorporeal membrane oxygenation are currently set arbitrarily. The impact on serum and pulmonary biotrauma markers of the transition to ultra-protective ventilation settings following extracorporeal...
journal_title:Critical care medicine
pub_type: 杂志文章,随机对照试验
doi:10.1097/CCM.0000000000003894
更新日期:2019-11-01 00:00:00
abstract:OBJECTIVES:The potential advantages of lowering core temperature during sepsis are to lower energy requirement and to activate various cell-protecting pathways. We experimentally investigated whether postconditioning temperature modifications influence survival duration during experimental sepsis. DESIGN:A prospective...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/01.CCM.0000240231.76837.DC
更新日期:2006-10-01 00:00:00
abstract:OBJECTIVE:The goals of this review article are to review the importance and value of standardized definitions in clinical research, as well as to propose the necessary tools and infrastructure needed to advance nosology and medial taxonomy to improve the quality of clinical trials in the field of critical care. DATA S...
journal_title:Critical care medicine
pub_type: 杂志文章,评审
doi:10.1097/CCM.0b013e3181920ee8
更新日期:2009-01-01 00:00:00
abstract:BACKGROUND:Hypertonic saline is the recommended therapy to shrink swollen brain cells in patients with acute hyponatremia accompanied by seizures. OBJECTIVES:In the absence of hypertonic saline, hypertonic mannitol will shrink the cell volume. Because mannitol is excreted rapidly, our aim was to ensure that it would b...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-200006000-00037
更新日期:2000-06-01 00:00:00
abstract:OBJECTIVES:To provide an overview of key elements of the Affordable Care Act. To evaluate ways in which the Affordable Care Act will likely impact the practice of critical care medicine. To describe strategies that may help health systems and providers effectively adapt to changes brought about by the Affordable Care A...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000001431
更新日期:2016-03-01 00:00:00
abstract:BACKGROUND:Intensive care units (ICUs) are recognized as stressful environments. However, the conditions in which stressors may affect health professionals' performance and well-being and the conditions that potentially lead to impaired performance and staff psychological distress are not well understood. OBJECTIVES:T...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e31819c1496
更新日期:2009-04-01 00:00:00
abstract:OBJECTIVE:Head-to-head comparison of the success rate of jejunal placement of a new electromagnetically visualized jejunal tube with that of the endoscopic technique in critically ill patients. DESIGN:: Prospective, randomized clinical trial. SETTING:Two intensive care units at a university hospital. PATIENTS:: A to...
journal_title:Critical care medicine
pub_type: 杂志文章,随机对照试验
doi:10.1097/CCM.0b013e3181fb7b5f
更新日期:2011-01-01 00:00:00
abstract:OBJECTIVE:To determine the utility of thoracic computed tomography (TCT) in the initial assessment of critically ill patients with chest injuries. DESIGN:Prospective observational study of cohorts. SETTING:Trauma intensive care unit (ICU) of a Spanish Level III hospital (US equivalent Level I). PATIENTS:Three hundre...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-200005000-00018
更新日期:2000-05-01 00:00:00
abstract:OBJECTIVE:To test the hypotheses that, for uncontrolled hemorrhagic shock (UHS) in rats, mild hypothermia, compared with normothermia, would increase long-term survival as well as moderate hypothermia, oxygen breathing would increase survival further, and hypothermia and oxygen would mitigate visceral ischemia (dysoxia...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-200007000-00047
更新日期:2000-07-01 00:00:00
abstract:OBJECTIVE:To review the institutional experience of a national tertiary referral center for extracorporeal life support (ECLS) in severe varicella pneumonia. DATA SOURCES:Hospital records and ECLS flow sheets. STUDY SELECTION:All pediatric (nonneonatal) and adult patients who were treated for varicella pneumonia with...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199706000-00014
更新日期:1997-06-01 00:00:00