High-frequency oscillatory ventilation: lessons learned from mechanical test lung models.

Abstract:

OBJECTIVE:Review data obtained from high-frequency oscillatory ventilation (HFOV) and mechanical test lung models with respect to delivered tidal volume, distal pressure transmission, endotracheal tube cuff leaks, and simulated clinical conditions. DESIGN:Review of selected studies from PubMed, published abstracts, and institutional mechanical test lung data. RESULTS:Tidal volume delivery during HFOV is altered by oscillatory pressure amplitude (DeltaP), frequency (Hz), percent inspiratory time (IT%), and patient variables. Distal (carinal) oscillatory pressure amplitude transmission is directly correlated with endotracheal tube diameter and peripheral airway resistance. Endotracheal tube cuff leaks promote egress of tracheal gas while attenuating distal oscillatory pressure amplitude and tidal volume transmission. Simulated clinical conditions (e.g., increased distal airway resistance, mainstem intubation) may increase observed DeltaP, whereas mean airway pressure is decreased with air leaks. CONCLUSION:Mechanical test lung and artificial trachea simulations may provide useful information on the interaction of HFOV with altered lung mechanics and may contribute to the formulation of HFOV clinical strategies. Important limitations of these models include absence of gas exchange, histologic and biologic markers, or hemodynamic data.

journal_name

Crit Care Med

journal_title

Critical care medicine

authors

Van de Kieft M,Dorsey D,Morison D,Bravo L,Venticinque S,Derdak S

doi

10.1097/01.ccm.0000155924.74942.7f

subject

Has Abstract

pub_date

2005-03-01 00:00:00

pages

S142-7

issue

3 Suppl

eissn

0090-3493

issn

1530-0293

pii

00003246-200503001-00006

journal_volume

33

pub_type

杂志文章,评审
  • Continuous monitoring of tissue oxygen tension during hyperoxia and hypoxia: relation of subcutaneous, transcutaneous, and conjunctival oxygen tension to hemodynamic variables.

    abstract::Subcutaneous, transcutaneous, and conjunctival oxygen tensions (PscO2, PtcO2, and PcjO2, respectively) were measured in anesthetized dogs subjected sequentially to normoxia, hyperoxia, and hypoxia. Intravascular pressure, hemodynamic and oxygen transport variables were measured simultaneously. PtcO2 and PcjO2 closely ...

    journal_title:Critical care medicine

    pub_type: 杂志文章

    doi:10.1097/00003246-198812000-00011

    authors: Gottrup F,Gellett S,Kirkegaard L,Hansen ES,Johannsen G

    更新日期:1988-12-01 00:00:00

  • Pulmonary hypertension in acute respiratory failure.

    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

    authors: Villar J,Blazquez MA,Lubillo S,Quintana J,Manzano JL

    更新日期:1989-06-01 00:00:00

  • Initial pH, base deficit, lactate, anion gap, strong ion difference, and strong ion gap predict outcome from major vascular injury.

    abstract:OBJECTIVE:This study determines whether acid-base data obtained in the emergency department correlate with outcome from major vascular injury. DESIGN:Observational, retrospective record review of trauma patients requiring vascular repair (torso or extremity, January 1988 to December 1997). Data included age, Injury Se...

    journal_title:Critical care medicine

    pub_type: 杂志文章

    doi:10.1097/01.ccm.0000125517.28517.74

    authors: Kaplan LJ,Kellum JA

    更新日期:2004-05-01 00:00:00

  • Effectiveness of a multidimensional approach for prevention of ventilator-associated pneumonia in adult intensive care units from 14 developing countries of four continents: findings of the International Nosocomial Infection Control Consortium.

    abstract:OBJECTIVES:The aim of this study was to analyze the effect of the International Nosocomial Infection Control Consortium's multidimensional approach on the reduction of ventilator-associated pneumonia in patients hospitalized in intensive care units. DESIGN:A prospective active surveillance before-after study. The stud...

    journal_title:Critical care medicine

    pub_type: 杂志文章

    doi:10.1097/CCM.0b013e3182657916

    authors: Rosenthal VD,Rodrigues C,Álvarez-Moreno C,Madani N,Mitrev Z,Ye G,Salomao R,Ulger F,Guanche-Garcell H,Kanj SS,Cuéllar LE,Higuera F,Mapp T,Fernández-Hidalgo R,INICC members.

    更新日期:2012-12-01 00:00:00

  • Effects of accidental trauma on cytokine and endotoxin production.

    abstract:OBJECTIVE:To determine the effects of accidental injury of varying severity on interleukin (IL)-1 alpha, IL-6, IL-8, tumor necrosis factor-alpha (TNF-alpha), and endotoxin release. DESIGN:Prospective, multi-unit, longitudinal study. SETTING:Emergency Departments and intensive care units of two university hospitals. ...

    journal_title:Critical care medicine

    pub_type: 杂志文章

    doi:10.1097/00003246-199306000-00010

    authors: Hoch RC,Rodriguez R,Manning T,Bishop M,Mead P,Shoemaker WC,Abraham E

    更新日期:1993-06-01 00:00:00

  • Use of bispectral electroencephalogram monitoring to assess neurologic status in unsedated, critically ill patients.

    abstract:OBJECTIVE:To test whether spectral indices derived from the electroencephalogram (EEG), and especially the bispectral index (BIS), can be used as measures of neurologic status in unsedated, critically ill patients. DESIGN:Prospective, observational study. SETTING:Medical intensive care unit (ICU) of a university-affi...

    journal_title:Critical care medicine

    pub_type: 杂志文章

    doi:10.1097/00003246-200110000-00024

    authors: Gilbert TT,Wagner MR,Halukurike V,Paz HL,Garland A

    更新日期:2001-10-01 00:00:00

  • Antibiotic dosing during sustained low-efficiency dialysis: special considerations in adult critically ill patients.

    abstract:OBJECTIVE:To address issues of antibiotic dosing during sustained low-efficiency dialysis by using available pharmacokinetic data, intermittent and continuous renal replacement therapy dialysis guidelines, and our experience with sustained low-efficiency dialysis. DATA RESOURCES:Published clinical trials, case reports...

    journal_title:Critical care medicine

    pub_type: 杂志文章,评审

    doi:10.1097/CCM.0b013e318206c3b2

    authors: Bogard KN,Peterson NT,Plumb TJ,Erwin MW,Fuller PD,Olsen KM

    更新日期:2011-03-01 00:00:00

  • Toll-like receptor 2 plays a critical role in cardiac dysfunction during polymicrobial sepsis.

    abstract:OBJECTIVE:To determine the role of toll-like receptor 2 in cardiac dysfunction during polymicrobial sepsis. DESIGN:Controlled animal study. SETTING:University hospital research laboratory. SUBJECTS:Male C57BL/6, wild-type, toll-like receptor 2-/-. INTERVENTION:Polymicrobial peritonitis, a clinically relevant model ...

    journal_title:Critical care medicine

    pub_type: 杂志文章

    doi:10.1097/CCM.0b013e3181d99e67

    authors: Zou L,Feng Y,Chen YJ,Si R,Shen S,Zhou Q,Ichinose F,Scherrer-Crosbie M,Chao W

    更新日期:2010-05-01 00:00:00

  • Heat shock factor 1 and heat shock proteins: critical partners in protection against acute cell injury.

    abstract:OBJECTIVE:Life-threatening conditions cause severe changes in the organization and conformation of macromolecules, creating urgent requirements for protein repair to ensure survival. As molecular chaperones, heat shock proteins (HSP) that have specialized functions in protein folding are now well established to restore...

    journal_title:Critical care medicine

    pub_type: 杂志文章,评审

    doi:

    authors: Christians ES,Yan LJ,Benjamin IJ

    更新日期:2002-01-01 00:00:00

  • Pneumonia as a complication of blood product transfusion in the critically ill: transfusion-related immunomodulation (TRIM).

    abstract:BACKGROUND:An increased risk of postoperative infection (including pneumonia) attributable to the receipt of allogeneic blood transfusion has been investigated as a possible manifestation of transfusion-related immunomodulation (TRIM) in 16 randomized controlled trials (RCTs) and approximately 40 observational studies....

    journal_title:Critical care medicine

    pub_type: 杂志文章,meta分析,评审

    doi:10.1097/01.CCM.0000214310.70642.8C

    authors: Vamvakas EC

    更新日期:2006-05-01 00:00:00

  • Nitrogen balance, protein loss, and the open abdomen.

    abstract:OBJECTIVE:Goal-directed nutritional support is essential to improving morbidity and mortality. Open abdominal decompression is similarly crucial to the successful treatment of intra-abdominal hypertension and abdominal compartment syndrome. The open abdomen, however, places the patient at risk for potentially significa...

    journal_title:Critical care medicine

    pub_type: 杂志文章

    doi:10.1097/01.CCM.0000250390.49380.94

    authors: Cheatham ML,Safcsak K,Brzezinski SJ,Lube MW

    更新日期:2007-01-01 00:00:00

  • Living and dying with medical technology.

    abstract::Medical technology is a two-edged sword, capable of saving and improving life but also of ending and harming life. Finding the right stance toward technology requires great balance and sensitivity. It has seductive powers because of its expected benefits, the social and professional pressures to use it, and a frequent...

    journal_title:Critical care medicine

    pub_type: 杂志文章

    doi:10.1097/01.CCM.0000065122.55187.22

    authors: Callahan D

    更新日期:2003-05-01 00:00:00

  • The impact of a neurointensivist-led team on a semiclosed neurosciences intensive care unit.

    abstract:OBJECTIVE:To evaluate the impact of a newly appointed neurointensivist on neurosciences intensive care unit (NICU) patient outcomes and quality of care variables. DESIGN:Observational cohort with historical controls. SETTING:Ten-bed neurointensive care unit in tertiary university hospital. PATIENTS:Mortality, length...

    journal_title:Critical care medicine

    pub_type: 杂志文章

    doi:10.1097/01.ccm.0000146131.03578.21

    authors: Varelas PN,Conti MM,Spanaki MV,Potts E,Bradford D,Sunstrom C,Fedder W,Hacein Bey L,Jaradeh S,Gennarelli TA

    更新日期:2004-11-01 00:00:00

  • Comparison of multiple organ dysfunction scores in the prediction of hospital mortality in the critically ill.

    abstract:OBJECTIVE:To compare the scales and predictive power for hospital mortality of three recent multiple organ dysfunction scores. DESIGN:Prospective, observational, validation cohort study. SETTING:A ten-bed medical-surgical intensive care unit in a Finnish tertiary care hospital. PATIENTS:Among the 591 consecutive pat...

    journal_title:Critical care medicine

    pub_type: 杂志文章

    doi:10.1097/00003246-200208000-00005

    authors: Pettilä V,Pettilä M,Sarna S,Voutilainen P,Takkunen O

    更新日期:2002-08-01 00:00:00

  • Changes in conjunctival oxygen tension and temperature with advancing age.

    abstract::The conjunctival oxygen monitor reflects oxygen tension of the internal carotid artery without introducing the heating artifact characteristic of transcutaneous monitors. It is now being used in the ICU and the operating room to measure accurately and continuously Po2 and temperature of conjunctival tissue. We examine...

    journal_title:Critical care medicine

    pub_type: 杂志文章

    doi:10.1097/00003246-198508000-00016

    authors: Isenberg SJ,Green BF

    更新日期:1985-08-01 00:00:00

  • Beyond the Team: Understanding Interprofessional Work in Two North American ICUs.

    abstract:OBJECTIVE:To examine the ways in which healthcare professionals work together in the ICU setting, through a consideration of the contextual, organizational, processual, and relational factors that impact their interprofessional collaboration. DESIGN:Data from over 350 hours of ethnographic observation and 35 semistruc...

    journal_title:Critical care medicine

    pub_type: 杂志文章

    doi:10.1097/CCM.0000000000001136

    authors: Alexanian JA,Kitto S,Rak KJ,Reeves S

    更新日期:2015-09-01 00:00:00

  • Transient regional hypothermia applied to a traumatic limb attenuates distant lung injury following blast limb trauma.

    abstract:OBJECTIVES:Explosive traumatic injury to an extremity may lead to both local and distant organ injury. Regional traumatic tissue hypothermia has been reported to offer systemic protection; here we investigated the protective effects of regional limb hypothermia on local tissue trauma and the lungs. Furthermore, the opt...

    journal_title:Critical care medicine

    pub_type: 杂志文章

    doi:10.1097/CCM.0b013e3182a84daa

    authors: Ning J,Mo L,Zhao H,Lu K,Wang L,Lai X,Yang B,Zhao H,Sanders RD,Ma D

    更新日期:2014-01-01 00:00:00

  • Protective effect of a novel, potent inhibitor of poly(adenosine 5'-diphosphate-ribose) synthetase in a porcine model of severe bacterial sepsis.

    abstract:OBJECTIVE:To determine whether activation of the nuclear enzyme poly(adenosine 5'-diphosphate [ADP]-ribose) synthetase (PARS) contributes to mortality rate, myocardial dysfunction, and cardiovascular collapse in a porcine model of sepsis induced by implantation of an infected clot. DESIGN:Prospective, random animal st...

    journal_title:Critical care medicine

    pub_type: 杂志文章

    doi:10.1097/00003246-200205000-00004

    authors: Goldfarb RD,Marton A,Szabó E,Virág L,Salzman AL,Glock D,Akhter I,McCarthy R,Parrillo JE,Szabó C

    更新日期:2002-05-01 00:00:00

  • Detection of false lumen perfusion at the beginning of cardiopulmonary bypass in patients undergoing repair of aortic dissection.

    abstract:OBJECTIVE:In patients undergoing surgical repair of aortic dissection, false lumen perfusion during cardiopulmonary bypass may produce central nervous system damage, myocardial ischemia, aortic rupture, and death. We describe a method to detect false lumen perfusion at the beginning of retrograde aortic perfusion that ...

    journal_title:Critical care medicine

    pub_type: 杂志文章

    doi:10.1097/00003246-200006000-00026

    authors: Voci P,Testa G,Tritapepe L,Menichetti A,Caretta Q

    更新日期:2000-06-01 00:00:00

  • Role of regulatory T cells in long-term immune dysfunction associated with severe sepsis.

    abstract:OBJECTIVE:To investigate the role of regulatory T cells in the modulation of long-term immune dysfunction during experimental sepsis. It is well established that sepsis predisposes to development of a pronounced immunosuppression. Nevertheless, the mechanisms underlying the immune dysfunction after sepsis are still not...

    journal_title:Critical care medicine

    pub_type: 杂志文章

    doi:10.1097/CCM.0b013e3181e78ad0

    authors: Nascimento DC,Alves-Filho JC,Sônego F,Fukada SY,Pereira MS,Benjamim C,Zamboni DS,Silva JS,Cunha FQ

    更新日期:2010-08-01 00:00:00

  • Can healthcare providers obtain judicial intervention against surrogates who demand "medically inappropriate" life support for incompetent patients?

    abstract:OBJECTIVE:This article analyzes, from a legal perspective, a recent phenomenon involving a clash between the values of attending medical personnel and the instructions of surrogate decision-makers acting on behalf of incompetent patients. Some hospitals have gone to court to challenge decisions by surrogates to continu...

    journal_title:Critical care medicine

    pub_type: 杂志文章,评审

    doi:10.1097/00003246-199605000-00026

    authors: Cantor NL

    更新日期:1996-05-01 00:00:00

  • Intensive care unit: how stressful for physicians?

    abstract::The ICU has been considered a psychologically stressful environment. Although numerous studies have investigated this stress in ICU nurses, virtually none have examined how stressful the ICU is for physicians. This prospective study compares housestaff physicians' ratings of stress in the ICU to other medical-surgical...

    journal_title:Critical care medicine

    pub_type: 杂志文章

    doi:10.1097/00003246-198602000-00004

    authors: Eisendrath SJ,Link N,Matthay M

    更新日期:1986-02-01 00:00:00

  • Lung Purinoceptor Activation Triggers Ventilator-Induced Brain Injury.

    abstract:OBJECTIVES:Mechanical ventilation can cause ventilator-induced brain injury via afferent vagal signaling and hippocampal neurotransmitter imbalances. The triggering mechanisms for vagal signaling during mechanical ventilation are unknown. The objective of this study was to assess whether pulmonary transient receptor po...

    journal_title:Critical care medicine

    pub_type: 杂志文章

    doi:10.1097/CCM.0000000000003977

    authors: González-López A,López-Alonso I,Pickerodt PA,von Haefen C,Amado-Rodríguez L,Reimann H,Niendorf T,Kuebler W,Albaiceta GM,Francis RCE,Spies CD

    更新日期:2019-11-01 00:00:00

  • Procalcitonin release patterns in a baboon model of trauma and sepsis: relationship to cytokines and neopterin.

    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

    authors: Redl H,Schlag G,Tögel E,Assicot M,Bohuon C

    更新日期:2000-11-01 00:00:00

  • The endothelium in sepsis: source of and a target for inflammation.

    abstract:OBJECTIVE:To discuss a possible role of the endothelium in sepsis. DATA SOURCES:Studies published in biomedical journals and our own experimental results. STUDY SELECTION:Studies on endothelial mechanisms in the context of sepsis. DATA EXTRACTION AND SYNTHESIS:Changes in endothelial cells on activation by inflammato...

    journal_title:Critical care medicine

    pub_type: 杂志文章,评审

    doi:10.1097/00003246-200107001-00011

    authors: Hack CE,Zeerleder S

    更新日期:2001-07-01 00:00:00

  • Effects of an angiotensin-converting enzyme inhibitor on the inflammatory response in in vivo and in vitro models.

    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

    authors: Hagiwara S,Iwasaka H,Matumoto S,Hidaka S,Noguchi T

    更新日期:2009-02-01 00:00:00

  • Accuracy of intramucosal pH calculated from arterial bicarbonate and the Henderson-Hasselbalch equation: assessment using simulated ischemia.

    abstract:OBJECTIVES:To determine the accuracy of intramucosal pH (pHi) calculated using arterial bicarbonate instead of mucosal capillary bicarbonate in the Henderson-Hasselbalch equation. DESIGN:Simulation of progressive ischemia in mucosal capillary blood. SETTING:University research laboratory. SUBJECTS:Normal human blood...

    journal_title:Critical care medicine

    pub_type: 杂志文章

    doi:10.1097/00003246-199911000-00028

    authors: Morgan TJ,Venkatesh B,Endre ZH

    更新日期:1999-11-01 00:00:00

  • Can we prevent the spread of focal lung inflammation?

    abstract::By definition, the acute respiratory distress syndrome is associated with diffuse cellular infiltration and proteinaceous edema. It is generally believed that the widespread injury that characterizes acute respiratory distress syndrome is a process that is launched almost synchronously throughout the lung, caused by b...

    journal_title:Critical care medicine

    pub_type: 杂志文章

    doi:10.1097/CCM.0b013e3181f20f01

    authors: Marini JJ

    更新日期:2010-10-01 00:00:00

  • Federal and nationwide intensive care units and healthcare costs: 1986-1992.

    abstract:OBJECTIVES:To establish Department of Veterans Affairs' intensive care unit (ICU) costs from a database and to use this information to validate the Russell equation, the most commonly used method of calculating ICU costs. To compare and trend Department of Veterans Affairs' and nationwide (USA) ICU and healthcare costs...

    journal_title:Critical care medicine

    pub_type: 杂志文章

    doi:

    authors: Halpern NA,Bettes L,Greenstein R

    更新日期:1994-12-01 00:00:00

  • Intracoronary Transfusion of Circulation-Derived CD34+ Cells Improves Left Ventricular Function in Patients With End-Stage Diffuse Coronary Artery Disease Unsuitable for Coronary Intervention.

    abstract:OBJECTIVE:This study tested the hypothesis that intra-coronary transfusion of circulation-derived autologous CD34+ cells can improve ischemia-related left ventricular dysfunction in patients with severe diffuse coronary artery disease refractory to medication and unsuitable for coronary intervention. DESIGN:A prospect...

    journal_title:Critical care medicine

    pub_type: 杂志文章,随机对照试验

    doi:10.1097/CCM.0000000000001138

    authors: Lee FY,Chen YL,Sung PH,Ma MC,Pei SN,Wu CJ,Yang CH,Fu M,Ko SF,Leu S,Yip HK

    更新日期:2015-10-01 00:00:00