Search Results
Results 201 - 250 of 2722
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Vargas Frédéric - - 2009
OBJECTIVE: To compare the physiologic effects of noninvasive pressure-support ventilation (NPSV) delivered by a facemask, a helmet with the same settings, and a helmet with specific settings. Inspiratory muscle effort, gas exchange, patient-ventilator synchrony, and comfort were evaluated. DESIGN: Prospective crossover study. SETTING: A 13-bed medical intensive care unit in ...
Green Lesley - - 2009
BACKGROUND AND OBJECTIVE: The Difficult Airway Society protocol for the 'can't intubate, can't ventilate' scenario recommends the use of kink-resistant cannula cricothyroidotomy with transtracheal jet ventilation or surgical cricothyroidotomy. This survey aimed to assess the preparedness of anaesthetists and anaesthetic assistants for emergency tracheal access. METHODS: Ninety-seven anaesthetists and 63 ...
Rahe-Meyer N - - 2009
Bronchoscopy and bronchial suctioning during intra-operative artificial ventilation often causes leakage from the ventilation circuit with a decrease in ventilatory parameters and possible workplace contamination with anaesthetic gases. Different connectors have been developed to reduce gas leakage. We evaluated the following connectors : VBM 2 mm, 3 mm and 5 ...
Kondili Eumorfia - - 2009
Patient-ventilator asynchrony refers to the uncoupling between the mechanically delivered breath and the patient's respiratory effort. It is common during assisted mechanical ventilation and may affect the morbidity of critically ill patients. Close inspection of pressure, volume and flow waveforms - displayed by modern ventilators - may help the physician ...
Migliori Claudio - - 2009
OBJECTIVES: Our goal was to evaluate the effects of a helium/oxygen mixture (heliox) on pulmonary mechanics and gas exchange in preterm infants during both conventional and noninvasive ventilation. PATIENTS AND METHODS: Ten preterm infants, ventilated from birth, were enrolled. Resistive work of breathing, pulmonary compliance, static compliance, respiratory rate, minute ...
Harris R Scott - - 2009
The effect of body posture on regional ventilation during bronchoconstriction is unknown. In five subjects with asthma, we measured spirometry, low-frequency (0.15-Hz) lung elastance, and resistance and regional ventilation by intravenous (13)NN-saline positron emission tomography before and after nebulized methacholine. The subjects were imaged prone on 1 day and supine ...
Racca Fabrizio - - 2009
Noninvasive ventilation (NIV) has been widely used to decrease the complications associated with tracheal intubation in mechanically ventilated patients with neuromuscular diseases in acute respiratory failure. However, nasal ulcerations might occur when masks are used as an interface. Helmet ventilation is a possible option in this case. We describe two ...
Koutsoukou Antonia - - 2009
PURPOSE: The aim of this study was to investigate the effect of mechanical ventilation (MV) before acute respiratory distress syndrome (ARDS) on subsequent evolution of respiratory mechanics and blood gases in protectively ventilated patients with ARDS. METHODS: Nineteen patients with ARDS were stratified into 2 groups according to ARDS onset ...
Ferreira Juliana C - - 2009
BACKGROUND: Noninvasive positive-pressure ventilation (NPPV) modes are currently available on bilevel and ICU ventilators. However, little data comparing the performance of the NPPV modes on these ventilators are available. METHODS: In an experimental bench study, the ability of nine ICU ventilators to function in the presence of leaks was compared ...
Sarge T - - 2009
Acute respiratory distress syndrome (ARDS) and ventilator induced lung injury (VILI) continue to challenge clinicians who care for the critically ill. Current research in ARDS has focused on ventilator strategies to improve the outcome for these patients. In this review, we emphasize the limitations of managing ventilators based on airway ...
Schauvliege Stijn - - 2009
OBJECTIVE: To investigate the influence of two ventilation modes on the performance of an anaesthetic conserving device (AnaConDa) in piglets. STUDY DESIGN: Prospective randomized experimental trial. ANIMALS: Eight female piglets weighing 24.7 +/- 2.2 kg. METHODS: Anaesthesia was maintained with sevoflurane (in 60% oxygen) delivered from the AnaConDa placed between ...
Mahmoud R A - - 2009
AIM: Protective ventilation in neonates requires careful volume monitoring to prevent ventilator-induced lung injury caused by baro/volutrauma and hence chronic lung disease. This study investigated the effect of endotracheal tube (ET) leakage on the displayed tidal volume using an in vitro model. METHODS: A neonatal lung model was ventilated via ...
Martínez-Caro Leticia - - 2009
OBJECTIVE: To demonstrate that increased formation of reactive oxygen (ROS) and nitrogen species (RNS) is involved in VILI-induced vascular dysfunction. METHODS: Male Sprague-Dawley anesthetized rats were ventilated for 60 min using low V(T) ventilation [V(T) 9 ml/kg, positive end-expiratory pressure (PEEP) 5 cmH(2)O, n = 18], and high V(T) ventilation ...
Thille Arnaud W - - 2009
OBJECTIVE: To compare 13 commercially available, new-generation, intensive-care-unit (ICU) ventilators in terms of trigger function, pressurization capacity during pressure-support ventilation (PSV), accuracy of pressure measurements, and expiratory resistance. DESIGN AND SETTING: Bench study at a research laboratory in a university hospital. METHODS: Four turbine-based ventilators and nine conventional servo-valve compressed-gas ...
Aota, Sumihisa
In this thesis, the suggestion that the catecholamines, adrenaline (AD) and/or noradrenaline (NA) may have a role in the control of ventilation in fish was tested. This idea was developed from the observations that catecholamines could modify ventilation in eels, and that situations that cause changes in ventilation are usually ...
Vallée Fabrice - - 2009
OBJECTIVE: To evaluate the ability of DeltaPP/DeltaP [pulse pressure variations (DeltaPP) adjusted by alveolar pressure variations (DeltaP = Pplat-PEEPtot)] in predicting fluid responsiveness, to compare its accuracy to that of DeltaPP used alone and to evaluate the influence of tidal volume (Vt) on these two indices. DESIGN: Prospective study. SETTING: ...
Bauer K - - 2009
Inhomogeneously compliant lungs need special treatment during ventilation as they are often affected by respiratory insufficiency which is frequently caused by a regional collapse of the airways. To treat respiratory insufficiency atelectatic areas have to be recruited. Beside conventional mechanical ventilation, high-frequency oscillatory ventilation (HFOV) is an efficient method for ...
Rodriquez Dario D - - 2009
BACKGROUND: Aeromedical transport of critically ill casualties requires continued safe operation of medical equipment at altitude. We evaluated performance of two ventilators in an altitude chamber. METHODS: Two ventilators used by the United States Air Force (USAF) Critical Care Air Transport Teams were operated in an altitude chamber at barometric ...
Hahn Andreas - - 2009
OBJECTIVE: Noninvasive determination of the tension-time index of the inspiratory muscles (TT MUS) can identify predisposition to respiratory muscle fatigue in neuromuscular disease. We correlated TT MUS with age and extent of need of ventilator use for patients with Duchenne muscular dystrophy. DESIGN: Maximal inspiratory pressure, inspiratory pressure 0.1 sec ...
Halbertsma Feico J - - 2010
INTRODUCTION: Recruitment maneuvers (RMs) are advocated to prevent pulmonary collapse during low tidal volume ventilation and improve oxygenation. However, convincing clinical evidence for improved outcome is lacking. Recent experimental studies demonstrate that RMs translocate pulmonary inflammatory mediators into the circulation. To determine whether a single RM in ventilated children affects ...
Rabec C - - 2009
Empirically determined noninvasive ventilation (NIV) settings may not achieve optimal ventilatory support. Some ventilators include monitoring modules to assess ventilatory quality. We conducted a bench-to-bedside study to assess the ventilatory quality of the VPAPIII-ResLink (ResMed, North Ryde, Australia). We tested the accuracy of minute ventilation (MV) and leak calculations given ...
Bassani Mariana A - - 2009
OBJECTIVE: To evaluate how different ways of handling the neonatal self-inflating bag influences peak pressure and tidal volume. METHODS: This is an experimental study involving 141 different professionals (physicians, resident physicians, physiotherapists, nurses and nursing technicians), who ventilated an artificial lung, adjusted to simulate the lung of a term neonate, ...
Lloréns Julio - - 2009
BACKGROUND AND OBJECTIVE: The aim of the present study was to test the efficacy of adaptive support ventilation (ASV) to automatically adapt the ventilatory settings to the changes in the respiratory mechanics that occur during pneumoperitoneum and Trendelenburg position in gynaecological surgeries. METHODS: We prospectively studied 22 ASA I women ...
Cannesson Maxime - - 2009
BACKGROUND: Respiratory variations in arterial pulse pressure (DeltaPP) are accurate predictors of fluid responsiveness in mechanically ventilated patients. The aim of our study was to assess the ability of a novel algorithm for automatic estimation of stroke volume variation (SVV) to predict fluid responsiveness in mechanically ventilated patients. METHODS: We ...
Goligher Ewan - - 2009
PURPOSE OF REVIEW: To describe the trends in the results of epidemiological studies of mechanical ventilation. RECENT FINDINGS: Changes in population demographics have increased the incidence of mechanical ventilation. Higher age and comorbidity rates portend poorer outcomes of mechanical ventilation. The most common indication for initiation of mechanical ventilation is ...
De Santo Luca S - - 2009
OBJECTIVE: Extubation failure is a serious complication after cardiac surgery. The role of noninvasive positive-pressure ventilation for acute respiratory failure in patients undergoing cardiac surgery is unknown. This study aimed to assess the safety of implementing noninvasive positive-pressure ventilation in this setting and its impact on lung function and operative ...
Spieth Peter M - - 2009
BACKGROUND: Noisy pressure support ventilation has been reported to improve respiratory function compared to conventional assisted mechanical ventilation. We aimed at determining the optimal level of pressure support variability during noisy pressure support ventilation. METHODS: Twelve pigs were anesthetized and mechanically ventilated. Acute lung injury was induced by surfactant depletion. ...
Choi Yong Seon - - 2009
BACKGROUND: The prone position during robotic esophageal mobilization for minimally invasive esophagectomy (MIE) provides several advantages with regards to operative times, surgeon ergonomics, and surgical view; however, this technique requires one-lung ventilation (OLV). There are no guidelines about ventilatory modes during OLV in the prone position. We investigated the effects ...
Carrera Miguel - - 2009
PURPOSE: This prospective, multicenter, double-blind, placebo-controlled study tested the hypothesis that noninvasive positive pressure ventilation reduces the need for endotracheal intubation in patients hospitalized in a pulmonary ward because of acute exacerbation of chronic obstructive pulmonary disease. MATERIALS AND METHODS: Seventy-five consecutive patients with exacerbation (pH, 7.31 +/- 0.02; Pao(2), ...
Peck Michael D - - 2009
One of the most hotly debated aspect of inhalation injury is the "best" method of mechanical ventilation. Mechanical ventilation protocols differ between both physicians and burn centers, and multiple different strategies for mechanical ventilation are currently being used to support the burn patient with inhalation injury. These strategies range from ...
Quintel Michael - - 2009
Extracorporeal lung-supporting procedures open the possibility of staying within widely accepted margins of 'protective' mechanical ventilation (tidal volume of less than 6 mL per kg of predicted ideal body weight and plateau pressure of less than 30 cm H2O) in most any case of respiratory failure or even of further ...
Mulqueeny Qestra - - 2009
An automated classification algorithm for the detection of expiratory ineffective efforts in patient-ventilator interaction is developed and validated. Using this algorithm, 5624 breaths from 23 patients in a pulmonary ward were examined. The participants (N = 23) underwent both conventional and non-invasive ventilation. Tracings of patient flow, pressure at the ...
Atkins Joshua H - - 2009
We describe a 61-year-old female who underwent KTP laser ablation and CRE balloon dilatation of symptomatic idiopathic subglottic stenosis (50% obstruction). The procedure was conducted, using our standard approach for such cases, under total intravenous general anesthesia with subglottic high-frequency jet ventilation (HFJV) via Lindholm laryngoscope. The patient was enrolled ...
Kneyber Martin C J - - 2009
INTRODUCTION: Respiratory syncytial virus (RSV) lower respiratory tract disease is characterised by narrowing of the airways resulting in increased airway resistance, air-trapping and respiratory acidosis. These problems might be overcome using helium-oxygen gas mixture. However, the effect of mechanical ventilation with heliox in these patients is unclear. The objective of ...
Rose L - - 2009
Using a one-day prospective point prevalence design, this study aimed to characterise the current practice of mechanical ventilation and weaning in Australian and New Zealand intensive care units. During 2005, a bi-national one-day survey of 55 intensive care units found the point-prevalence of mechanical ventilation to be 284/491(58%). Common modes ...
Schrijvers D - - 2009
INTRODUCTION: During robot assisted hysterectomies and prostatectomies, surgical exposure demands the application of a CO2 pneumoperitoneum with a very steep Trendelenburg position (40 degrees). The extent to which oxygenation and ventilation might be compromised intra-operatively remains poorly documented. METHODS: Dead-space ventilation and venous admixture were determined in 18 patients undergoing ...
Lemes Daniela Aires - - 2009
QUESTION: Is ventilator-induced hyperinflation in sidelying more effective than sidelying alone in removing secretions and improving respiratory mechanics in ventilated patients with pulmonary infection? DESIGN: Randomised crossover trial with concealed allocation and intention-to-treat analysis. PARTICIPANTS: 30 mechanically ventilated patients with pulmonary infection in an adult intensive care unit. INTERVENTION: The ...
Ery??ksel Emel - - 2009
Legionella pneumonia has a serious clinical course and requires treatment at intensive care unit. The need for mechanical ventilation is one of the determinants of prognosis. Mortality rate is higher in patients treated with mechanical ventilation. Non-invasive positive pressure ventilation (NPPV) provides mechanical ventilation without endotracheal intubation and decreases the ...
Silva Dafne Cardoso Bourguignon da - - 2009
To investigate the relationship between mechanical ventilation and mortality and the practice of mechanical ventilation applied in children admitted to a high-complexity pediatric intensive care unit in the city of São Paulo, Brazil. Prospective cohort study of all consecutive patients admitted to a Brazilian high-complexity PICU who were placed on ...
Nehme Ziad - - 2009
Suboptimal bag ventilation in cardiopulmonary resuscitation (CPR) has demonstrated detrimental physiological outcomes for cardiac arrest patients. In light of recent guideline changes for resuscitation, there is a need to identify the efficacy of bag ventilation by prehospital care providers. The objective of this study was to evaluate bag ventilation in ...
Taniguchi Corinne - - 2009
Reduction of automatic pressure support based on a target respiratory frequency or mandatory rate ventilation (MRV) is available in the Taema-Horus ventilator for the weaning process in the intensive care unit (ICU) setting. We hypothesised that MRV is as effective as manual weaning in post-operative ICU patients. There were 106 ...
Chalmers James D - - 2008
The UK Department of Health has published concerns that pneumonia severity scores determined at hospital admission may underestimate the severity of pneumonia in young adults. SMART-COP (systolic blood pressure, multilobar chest radiography involvement, albumin level, respiratory rate, tachycardia, confusion, oxygenation, and arterial pH) was superior to both the CURB65 (confusion, ...
Mireles-Cabodevila Eduardo - - 2008
BACKGROUND: Studies have found that increasing the respiratory frequency during mechanical ventilation does not always improve alveolar minute ventilation and may cause air-trapping. OBJECTIVE: To investigate the theoretical and practical basis of higher-than-normal ventilation frequencies. METHODS: We used an interactive mathematical model of ventilator output during pressure-control ventilation to predict ...
Desebbe Olivier - - 2008
PURPOSE OF REVIEW: Hypovolemia is one of the most frequent causes of arterial hypotension in the operating room. Pulse oximeter plethysmographic waveform, obtained using a noninvasive and widely available device, has recently shown its potential interest in predicting fluid responsiveness in mechanically ventilated patients under mechanical ventilation. This review highlights ...
Piastra Marco - - 2008
An 11-year-old male developed a severe respiratory failure due to a iatrogenic flail chest following a surgery for removing a large chest wall area. A rare Ewing sarcoma was histologically diagnosed and intensive chemotherapy was administered. Postoperatively, because of the failure in ventilation weaning, the patient was electively extubated and ...
Sanders John C - - 2008
OBJECTIVES: Our objective was to assess the use of several tests of ProSeal LMA (PLMA) position and function that had been previously published but not studied in the pediatric population in a wide variety of clinical cases. BACKGROUND: The PLMA is widely used in pediatric anesthesia practice but complication rates ...
Kim Jin-Tae - - 2009
BACKGROUND: There are insufficient data as to the influence of the head and neck flexion, extension, and rotation on the ventilation with laryngeal tube suction II (LTS II). The purpose of this study was to investigate the influence of the head and neck position on oropharyngeal sealing pressure (primary outcome) ...
Hoegl Sandra - - 2009
BACKGROUND: High-pressure ventilation induces barotrauma and pulmonary inflammation, thus leading to ventilator-induced lung injury (VILI). By limiting the pulmonal inflammation cascade the anti-inflammatory cytokine interleukin (IL)-10 may have protective effects. Via inhalation, IL-10 reaches the pulmonary system directly and in high concentrations. METHODS: Thirty six male, anesthetized and mechanically ventilated ...
Orlikowski David - - 2009
Air leaks often result in alveolar hypoventilation in mechanically ventilated patients with neuromuscular disease. The primary objective of this study was to assess the feasibility, efficacy and tolerance of a ventilator equipped with an automated air-leak compensation system in a clinical situation. Fourteen neuromuscular patients with nocturnal air leaks during ...
DiBlasi Robert M - - 2008
BACKGROUND: Small endotracheal tubes (ETTs) and neonatal ventilators can impact gas exchange, work of breathing, and lung-mechanics measurements in infants, by increasing the expiratory resistance (R(E)) to gas flow. METHODS: We tested two each of the Babylog 8000plus, Avea, Carestation, and Servo-i ventilators. In the first phase of the study ...
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