Abstract：
:Three devices used to humidify the air delivered to hospitalized patients were evaluated for their relative hazard as measured by the concentration of bacterial output delivered with the gas. Two of the devices were evaporative types (commonly called "humidifiers"), moisturizing with water vapor, while the third was a nebulizer, delivering water droplets in aerosol form. Reservoirs were seeded with a tracer organism Pseudomonas cepacia (approximately 10(4)/ml) in distilled water. The output gas (approximately 30 1/min) was sampled through an Andersen six-stage bacterial sampler operated at 28.3 1/min. Excess gas was bled off through a Y-tubing. Results indicate that the nebulizer produces heavily contaminated bacterial aerosols (greater than 1000 P cepacia colonies in the 3-minute sampling period) even after a 20-minute warm-up period that raised the reservoir temperature to greater than 45 degrees C. The two evaporative type devices produced virtually no viable organisms even when sampling was initiated with the reservoir at room temperature.
journal_name
Respir Carejournal_title
Respiratory careauthors
Vesley D,Anderson J,Halbert MM,Wyman Lkeywords:
subject
Has Abstractpub_date
1979-03-01 00:00:00pages
228-34issue
3eissn
0020-1324issn
1943-3654journal_volume
24pub_type
杂志文章相关文献
Respiratory Care文献大全abstract：BACKGROUND:Calculation of physiologic dead space (dead space divided by tidal volume [VD/VT]) using the Enghoff modification of the Bohr equation requires measurement of the partial pressure of mean expired CO2 (PĒCO2) by exhaled gas collection and analysis, use of a metabolic analyzer, or use of a volumetric CO2 monit...
journal_title：Respiratory care
pub_type： 杂志文章
doi：10.4187/respcare.02116
更新日期：2013-07-01 00:00:00
abstract：:Because of the design characteristics, flow-triggering appears to offer measurable advantages over pressure-triggering, particularly during spontaneous breathing. During the trigger phase, flow-triggering provides a relatively shorter time delay than pressure-triggering. A trigger sensitivity that does not cause autoc...
journal_title：Respiratory care
pub_type： 共识发展会议,杂志文章,评审
doi：
更新日期：1992-09-01 00:00:00
abstract：UNLABELLED:Lectures and demonstrations have been the teaching and testing strategies most often employed by the American Heart Association in Advanced Cardiac Life Support (ACLS) training. I compared the abilities of interactive videodisc (IVD) courseware and ACLS instructors to evaluate airway management skills. METH...
journal_title：Respiratory care
pub_type： 杂志文章
doi：
更新日期：1991-08-01 00:00:00
abstract：BACKGROUND:Obstructive lung disease is diagnosed by a decreased ratio of FEV1 to the vital capacity (VC). Although the most commonly used VC is FVC, American Thoracic Society guidelines suggest alternative VCs, for example, slow VC (SVC), may offer a more-accurate evaluation of breathing capacity. There is recent evide...
journal_title：Respiratory care
pub_type： 杂志文章
doi：10.4187/respcare.06419
更新日期：2019-07-01 00:00:00
abstract：:High-frequency oscillation (HFO), applied to either the airway or chest wall, has been associated with changes in sputum attributes and clearance. The evolution of evidence, both in vitro and in vivo, supporting the use of HFO is reviewed. Devices that apply HFO to the airway range from the relatively simple mechanica...
journal_title：Respiratory care
pub_type： 杂志文章,评审
doi：
更新日期：2002-07-01 00:00:00
abstract：BACKGROUND:The addition of heated humidification to CPAP has been shown to improve nasal adverse effects in subjects with obstructive sleep apnea (OSA). However, current data regarding improvement in CPAP adherence is conflicting. Furthermore, there are no data from a tropical climate area with a high humidity level. ...
journal_title：Respiratory care
pub_type： 杂志文章,随机对照试验
doi：10.4187/respcare.04536
更新日期：2016-09-01 00:00:00
abstract：BACKGROUND:Blow-by, a common form of nebulizer therapy, in which the device is held away from a child's face, has been dismissed as ineffective because studies have demonstrated incremental aerosol drop-off with increasing distances from the face. Many of these studies do not take into account differences among nebuliz...
journal_title：Respiratory care
pub_type： 杂志文章
doi：10.4187/respcare.01653
更新日期：2012-12-01 00:00:00
abstract：OBJECTIVE:To determine whether outcomes (mortality and need for intensive care unit [ICU] readmission) of patients undergoing tracheostomy in the ICU can be predicted by common clinical or historical criteria. METHODS:We conducted a retrospective review of data from the medical record and Project Impact database in a ...
journal_title：Respiratory care
pub_type： 杂志文章
doi：
更新日期：2009-12-01 00:00:00
abstract：:There is now clear evidence that asthma prevalence increased significantly, especially in developed countries, during the second part of the 20th century. What caused this increase is currently unknown. Recent reports from the United States and the United Kingdom suggest that asthma prevalence may have plateaued betwe...
journal_title：Respiratory care
pub_type： 杂志文章
doi：
更新日期：2008-05-01 00:00:00
abstract：:Although oral and injectable drug formulations still dominate the market, interest in pulmonary delivery has been rising steadily. Given patients' desire for an alternative to injections, and recent advances in aerosol science and pulmonary medicine, the potential for improved disease management outcomes by using aero...
journal_title：Respiratory care
pub_type： 杂志文章,评审
doi：
更新日期：2000-07-01 00:00:00
abstract：:Mechanical ventilation is frequently used in pediatric patients to ensure adequate gas exchange, ameliorate respiratory distress, and enable resolution of pulmonary or other disorders. However, a number of important challenges remain in the pediatric population because there is a paucity of large-scale randomized cont...
journal_title：Respiratory care
pub_type： 杂志文章,评审
doi：10.4187/respcare.07029
更新日期：2019-07-01 00:00:00
abstract：BACKGROUND:The periodic administration of positive airway pressure combined with directed cough could aid mucus clearance in patients with cystic fibrosis (CF) and severe airway obstruction. OBJECTIVE:To compare the short-term effect of positive expiratory pressure (PEP) physiotherapy via mask (mask PEP), continuous p...
journal_title：Respiratory care
pub_type： 杂志文章,随机对照试验
doi：
更新日期：2006-10-01 00:00:00
abstract：:Although appropriate antibiotics may improve survival in patients with bacterial pneumonia, use of empirical broad-spectrum antibiotics in patients without infection is potentially harmful, facilitating colonization and superinfection with multiresistant microorganisms. Invasive diagnostic methods, including bronchoal...
journal_title：Respiratory care
pub_type： 杂志文章
doi：
更新日期：2005-06-01 00:00:00
abstract：BACKGROUND:Arterial oxygen desaturation frequently occurs in patients with COPD during daily activities at home. Oxygen flow is usually set at fixed and low rates for ambulatory patients. We evaluated an innovative closed-loop system (FreeO2) that automatically adjusts the oxygen flow to the patient's needs in subjects...
journal_title：Respiratory care
pub_type： 杂志文章,随机对照试验
doi：10.4187/respcare.04406
更新日期：2016-11-01 00:00:00
abstract：BACKGROUND:Frailty is a key issue in the care of elderly patients. Patients with COPD are more likely to be frail, with a prevalence of 57.8%. Frailty is associated with a low level of physical activity. The aim of this study was to analyze the predictive power and identify the cutoffs of physical activity in their dif...
journal_title：Respiratory care
pub_type： 杂志文章
doi：10.4187/respcare.04118
更新日期：2016-02-01 00:00:00
abstract：BACKGROUND:Percutaneous dilational tracheostomy (PDT) can potentially lead to hypoxia and alveolar derecruitment. The aim of this prospective study was to evaluate the efficacy of performing a recruitment maneuver (RM) before tracheostomy, in order to improve oxygenation. METHODS:We enrolled 29 eligible trauma patient...
journal_title：Respiratory care
pub_type： 杂志文章,随机对照试验
doi：10.4187/respcare.01798
更新日期：2012-11-01 00:00:00
abstract：INTRODUCTION:Patients receiving invasive mechanical ventilation with an endotracheal tube (ETT) can often benefit from pharmaceutical aerosols; however, drug delivery through the ventilator circuit is known to be very inefficient. The objective of this study was to improve the delivery of aerosol through an invasive me...
journal_title：Respiratory care
pub_type： 杂志文章
doi：10.4187/respcare.02782
更新日期：2014-05-01 00:00:00
abstract：:Respiratory volume monitoring (RVM) has been developed to noninvasively measure minute ventilation (V̇E), tidal volume, and breathing frequency and to display real-time respiratory curves in nonintubated patients. Although RVM was originally developed for post-anesthesia and monitored anesthesia care, we describe 3 ap...
journal_title：Respiratory care
pub_type： 杂志文章
doi：10.4187/respcare.03744
更新日期：2015-05-01 00:00:00
abstract：:Infants have low tidal volume, vital capacity, and functional residual capacity, and short respiratory cycles (low I:E ratio), which result in a low residence time for aerosol particles and, thus, low pulmonary deposition of aerosol particles (< 1% of the nominal dose), compared to adults (8-22%). Scintigraphy data su...
journal_title：Respiratory care
pub_type： 杂志文章,评审
doi：
更新日期：2004-06-01 00:00:00
abstract：:Dexmedetomidine is a selective alpha-2 receptor agonist that possesses both sedative and analgesic properties, with minimal respiratory depression. We report the successful administration of dexmedetomidine on a 16-year-old primigravida woman that allowed the patient to tolerate application of bi-level positive airwa...
journal_title：Respiratory care
pub_type： 杂志文章
doi：10.4187/respcare.01733
更新日期：2012-11-01 00:00:00
abstract：BACKGROUND:In this study, we aimed to validate the agreement between pulmonary function measurements obtained with a portable spirometer and measurements obtained with conventional spirometry in Chinese pediatric and adult populations. METHODS:Pulmonary function testing was performed to evaluate subjects enrolled at S...
journal_title：Respiratory care
pub_type： 杂志文章
doi：10.4187/respcare.07116
更新日期：2020-05-01 00:00:00
abstract：:Checking and maintaining mechanical ventilators traditionally have been the responsibility of the respiratory care practitioner and among the many reasons that the need for the profession of respiratory care persists. The increasing complexity of the mechanical ventilator itself and the appropriate application and mon...
journal_title：Respiratory care
pub_type： 杂志文章,评审
doi：
更新日期：1994-03-01 00:00:00
abstract：:End-stage liver disease and its complications are a leading cause of death among adults in the United States, and thousands of patients await liver transplantation. The liver plays a central role in health and homeostasis and thus the diseased liver leads to many deleterious effects on multiple organ systems, includin...
journal_title：Respiratory care
pub_type： 杂志文章,评审
doi：
更新日期：2007-08-01 00:00:00
abstract：BACKGROUND:Pneumoperitoneum and Trendelenburg position affect respiratory system mechanics and oxygenation during elective pelvic robotic surgery. The primary aim of this randomized pilot study was to compare the effects of a conventional low tidal volume ventilation with PEEP guided by gas exchange (VGas-guided) versu...
journal_title：Respiratory care
pub_type： 杂志文章,随机对照试验
doi：10.4187/respcare.07238
更新日期：2020-05-01 00:00:00
abstract：BACKGROUND:Directed cough maneuvers are often included in physiotherapy management aimed at preventing postoperative pulmonary complications after open heart surgery, but there is little scientific evidence of the effectiveness of directed cough maneuvers. METHODS:We conducted a randomized intra-subject crossover tria...
journal_title：Respiratory care
pub_type： 杂志文章,随机对照试验
doi：
更新日期：2008-08-01 00:00:00
abstract：:Ventilator-associated pneumonia (VAP) is an acquired infection related primarily to the consequences of prolonged endotracheal intubation. It is considered the most important infectious challenge in the critical care setting. Preventable complications of hospital care are considered an important source of wasted healt...
journal_title：Respiratory care
pub_type： 杂志文章,评审
doi：10.4187/respcare.03774
更新日期：2015-10-01 00:00:00
abstract：UNLABELLED:Because of the temperature extremes encountered during emergency resuscitation and transport in the field, we sought to evaluate the performance and safety of 10 adult resuscitators (5 permanent units: Hope 4, Laerdal, Lifesaver, Mark 3, and PMR; and 5 disposable units: BagEasy, Code Blue, CPR Bag, DMR, and ...
journal_title：Respiratory care
pub_type： 杂志文章
doi：
更新日期：1991-03-01 00:00:00
abstract：BACKGROUND:Improving quality of life (QOL) is a key goal in the care of patients with COPD. Pulmonary rehabilitation (PR) has clearly been shown to improve QOL, but is not accessible to many eligible patients. There is a need for alternative programs designed to improve patient well-being that are accessible to all pat...
journal_title：Respiratory care
pub_type： 杂志文章
doi：10.4187/respcare.04984
更新日期：2017-08-01 00:00:00
abstract：BACKGROUND:Obstructive sleep apnea is a disorder characterized by recurrent obstruction of the upper airways during sleep. The high prevalence of this disease led to proposed new strategies based on the home evaluation and management of patients. OBJECTIVE:To compare home unattended portable monitoring and automatic C...
journal_title：Respiratory care
pub_type： 杂志文章,随机对照试验
doi：10.4187/respcare.01939
更新日期：2013-07-01 00:00:00
abstract：:A summary of the 2-day Journal Conference on Current Trends in Neonatal and Pediatric Respiratory Care is provided. Topics included: diagnosis and management of common respiratory disorders of infants and children such as asthma, respiratory syncytial virus bronchiolitis, and cystic fibrosis; and common pediatric resp...
journal_title：Respiratory care
pub_type：
doi：
更新日期：2003-04-01 00:00:00
