Search Results
Results 201 - 250 of 1772
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Cerveny Shannon N - - 2012
The laryngeal mask airway is an alternative to endotracheal intubation that achieves control of the airway by creating a seal around the larynx with an inflatable cuff. This study compared use of the laryngeal mask airway with endotracheal intubation in anesthetized western lowland gorillas (Gorilla gorilla gorilla). Eight adult gorillas ...
Jeon Woo Jae - - 2012
The relatively recently developed I-gel (Intersurgical Ltd., Workingham, England) is a supraglottic airway device designed for single-use that, unlike conventional LMAs, does not require an inflatable cuff. In addition, the I-gel, much like the Proseal LMA (PLMA), has a gastric drainage tube associated with an upper tube for decompression of ...
Kushida Clete A - - 2012
To determine the neurocognitive effects of continuous positive airway pressure (CPAP) therapy on patients with obstructive sleep apnea (OSA). The Apnea Positive Pressure Long-term Efficacy Study (APPLES) was a 6-month, randomized, double-blind, 2-arm, sham-controlled, multicenter trial conducted at 5 U.S. university, hospital, or private practices. Of 1,516 participants enrolled, 1,105 ...
Rashid Ali M AM Department of Anesthesiology, Critical Care and Emergency Surgery, Department of Surgery, Virginia Commonwealth University and Massey Cancer Center, Richmond, Virginia, - - 2012
While airway exchange catheters (AEC) are designed to safely maintain a secure airway and sometimes allow for ventilation while exchanging an endotracheal tube or performing a trial tracheal extubation, their use is sometimes associated with devastating complications. Pneumothorax is an underappreciated complication with AECs that can occur even in the ...
Lippmann John - - 2012
OBJECTIVE: Anterior chest thrusts (with the subject sitting or standing and thrusts applied to the lower sternum) are recommended by the Australian Resuscitation Council as part of the sequence for clearing upper airway obstruction by a foreign body. Lateral chest thrusts (with the victim lying on their side) are no ...
Yoo K Y - - 2012
BACKGROUND: Remifentanil is known to attenuate the cardiovascular responses to tracheal intubation. We determined effective doses (ED(50)/ED(95)) of remifentanil to prevent the pressor response to tracheal intubation in patients with severe preeclampsia. METHODS: Seventy-five women with severe preeclampsia were randomly allocated to one of five remifentanil dose groups (0.25, 0.50, ...
Lee Hyoung Youn - - 2012
Abstract Background. A tight mask seal is frequently difficult to obtain and maintain during single-rescuer bag-valve-mask (BVM) ventilation. The ResMed mask (Bella Vista, NSW, Australia) is a continuous-positive-airway-pressure mask (CM) designed for noninvasive ventilation. Objective. In this study, we compared the ventilation performances of a standard mask (SM) and a ...
Kim Min-Soo - - 2012
PURPOSE: This prospective, randomized trial was conducted to establish whether the pediatric laryngeal mask airway (LMA) could be used without any concerns for abnormally high intra-cuff pressure when a cuff of the LMA was inflated with half the maximum recommended inflation volume or the resting volume before insertion. BASIC PROCEDURES: ...
Fung Constance H - - 2012
PURPOSE: Little is known about the ease of use of positive airway pressure (PAP) equipment and whether PAP equipment usability is associated with adherence. This pilot project aims to determine whether perceived difficulty with the mechanics of using PAP equipment is associated with nonadherence. METHODS: Within a larger study of ...
Friedman Oded - - 2012
We previously showed that in hypertensive patients the amount of fluid displaced from the legs overnight is directly related to the severity of obstructive sleep apnea and that the rostral fluid shift was greater in drug-resistant hypertensive patients. The findings suggested that this fluid redistribution increases upper airway collapsibility, yet ...
Kutter Annette P N - - 2012
BACKGROUND: Modern high volume-low pressure (HVLP) endotracheal tubes (ETT) cuffs can seal the trachea using baseline cuff pressures (CP) lower than peak inspiratory airway pressures (PIP). The aim of the study was to determine whether this technique reduces the damage to the tracheal mucosa compared to constant CP of 20 cmH(2) ...
Williams Brett - - 2012
BACKGROUND: Heart failure poses a significant burden of disease, resulting in 2,658 Australian deaths in 2008, and listed as an associated cause of death in a further 14,466 cases. Common in the hospital setting, continuous positive airway pressure (CPAP) therapy is a non-invasive ventilation technique used to prevent airway collapse ...
Chiam Patrick J T - - 2012
A man with rosacea developed bilateral eyelid edema from wearing a continuous positive airway pressure nasal mask daily. The edema was refractory to steroid, diuretics, and lymphatic drainage massage. The effect may be related to cumulative venous congestion and lymphostasis due to the continuous positive airway pressure treatment.
Gogineni Vk - - 2012
Patient-ventilator asynchrony has been associated with adverse outcomes. The largest body of investigation has focused on ineffective ventilator triggering. Nevertheless, the effect of other patterns of asynchrony on patient outcomes is unknown. The purpose of this study was to assess the performance of specific patterns of asynchrony in their ability ...
Arora Bhawana - - 2012
BACKGROUND: Heated, humidified, high-flow nasal cannula oxygen therapy (HHHFNC) has been used to improve ventilation in preterm infants. There are no data on airway pressures generated and efficacy in bronchiolitis. OBJECTIVE: The objective of this study was to determine nasopharyngeal (NP) pressures generated with HHHFNC therapy in bronchiolitis. METHODS: We ...
Kera Takeshi - - 2012
BACKGROUND: Airway occlusion pressure (P0.1) is used as an index of respiratory motor output; however, the reliability of P0.1 in this capacity has been not been sufficiently investigated. Therefore, the aim of our study was to examine the reliability of P0.1. METHODS: Eleven healthy subjects (7 men and 4 women) ...
Fierstra Jorn - - 2012
The PCO(2) in arterial blood (PaCO(2)) is a good parameter for monitoring ventilation and acid-base changes in ventilated patients, but its measurement is invasive and difficult to obtain in small children. Attempts have been made to use the partial pressure of CO(2) in end-tidal gas (PETCO(2)), as a noninvasive surrogate ...
Stein H - - 2012
Objective:Neurally adjusted ventilatory assist (NAVA) synchronizes spontaneous respiratory effort with mechanical ventilation. Electrodes detect the electrical activity of the diaphragm (Edi) and transmit this information to the ventilator, allowing the patient to determine their own respiratory rate (RR), peak pressures, and inspiratory and expiratory times in synchrony with the ventilator. ...
Peters Joost H - - 2012
In endotracheal intubation, a secured airway includes an insufflated cuff distal to the vocal cords. High cuff pressures may lead to major complications occurring after a short period of time. Cuff pressures are not routinely checked after intubation in the prehospital setting, dealing with a vulnerable group of patients. We ...
Mosing M - - 2012
REASONS FOR PERFORMING STUDY: Hypoxaemia is a common problem during equine anaesthesia. Continuous positive airway pressure (CPAP) is a ventilation mode routinely employed in man to overcome hypoxaemia but has not been objectively assessed in horses. OBJECTIVES: To test the effects of CPAP on oxygenation and its indices in anaesthetised ...
Deye N - - 2012
PURPOSE: The influence of posture on breathing effort in patients with difficult weaning is unknown. We hypothesized that posture could modulate the breathing effort in difficult-to-wean patients. METHODS: A prospective, crossover, physiologic study was performed in 24 intubated patients breathing with pressure support who had already failed a spontaneous breathing ...
Martin David P - - 2012
BACKGROUND: Unintended hyperinflation of the cuff of a laryngeal mask airway (LMA) may be associated with increased airway morbidity and postoperative pain. While the manufacturers recommend a cuff pressure of ≤60cmH(2)O, in usual clinical practice, there is no method used to determine the intracuff pressure. The purpose of this prospective ...
Frutos-Vivar F - - 2012
Most patients who require mechanical ventilation for longer than 24hours, and who improve the condition leading to the indication of ventilatory support, can be weaned after passing a first spontaneous breathing test. The challenge is to improve the weaning of patients who fail that first test. We have methods that ...
Arenkiel B - - 2012
BACKGROUND: In some categories of patients, a rapid sequence induction using a fibre-optic method may be indicated. The aim of the present study was to examine the effect of cricoid pressure (CP) on the duration of fibre-optic intubation. The hypothesis was that CP would prolong the intubation time. METHODS: The ...
Prasad Bharati - - 2012
Mechanistic and observational studies support an independent increase in risk of hypertension and abnormal glucose metabolism associated with obstructive sleep apnea (OSA). However, the specific populations and outcomes that improve with treatment of OSA in clinical practice are not established. We examined the effectiveness of OSA treatment on clinical blood ...
Montesi Sydney B - - 2012
We sought to provide an updated systematic review and meta-analysis of studies investigating the effect of positive airway pressure (PAP) treatment for obstructive sleep apnea (OSA) on systolic and diastolic blood pressure (SBP, DBP). Two independent investigators undertook a systematic search of the PubMed database (1980-2012) to identify randomized controlled ...
Bach John R - - 2012
OBJECTIVES: Respiratory management of patients with end-stage respiratory muscle failure of neuromuscular disease has evolved from no treatment and inevitable respiratory failure to the use of up to continuous noninvasive intermittent positive pressure ventilatory support (CNVS) to avert respiratory failure and to permit the extubation of "unweanable" patients without tracheostomy. ...
Chiumello D - - 2012
CPAP is the application in the airways of continuous positive pressure, close to the positive end expiratory pressure (PEEP). The two common available systems are by a continuous (high/low) flow system and by a mechanical ventilator. Aim of this study was to compare the mechanical performance of the CPAP systems ...
Babik Barna - - 2012
ABSTRACT: INTRODUCTION: The slope of phase III of the capnogram (SIII) relates to progressive emptying of the alveoli, a ventilation/perfusion mismatch, and ventilation inhomogeneity. SIII depends not only on the airway geometry, but also on the dynamic respiratory compliance (Crs); this latter effect has not been evaluated. Accordingly, we established ...
Sato Fumitomo - - 2012
Negative pressure pulmonary edema (NPPE), or acute postobstructive pulmonary edema, is caused by negative intrathoracic pressure against an obstructed upper airway. Although NPPE is generally a benign condition, several fatal cases attributed to the delay in diagnosis have been reported. We report a case of NPPE experienced during Dumon stent ...
Rubini Alessandro - - 2012
To describe the consequences of the cranial displacement of the diaphgram occurring during pneumoperitoneum (Pnp) and/or Trendelenburg (Tnd) position on respiratory mechanics. Possible addictive effects and the changes of the viscoelastic respiratory system resistance were studied, which were not extensively described before. The end-inflation occlusion method was applied on eight ...
Kim Eun-Jung - - 2012
Desflurane has the most rapid onset and offset of action among the volatile anesthetic agents used for general anesthesia, but it can cause airway reactivity, tachycardia, and hypertension during induction, especially in pediatric patients. This study was designed to determine a median effective effect-site concentration (EC(50)) of remifentanil to prevent ...
Bell S F - - 2012
We compared insertion rates of single-use polyvinyl chloride laryngeal mask airways (LMAs) vs single-use silicone LMAs in 72 anaesthetised patients. Both airways were produced by Flexicare Medical. Laryngeal mask airway insertion was successful on the first attempt in 68/72 (94%) polyvinyl chloride LMAs vs 64/72 (89%) silicone LMAs (p = 0.39). Overall ...
Berg Katherine Margaret - - 2012
Noninvasive ventilation, both continuous positive airway pressure and noninvasive positive pressure ventilation, has been used increasingly for acute respiratory failure over the past several years. Noninvasive ventilation has been proven to be beneficial for some causes of acute respiratory failure, most clearly for acute exacerbations of chronic obstructive pulmonary disease, ...
Moorhead Katherine T - - 2012
Neurally adjusted ventilatory assist (NAVA) is a ventilation assist mode that delivers pressure in proportionality to electrical activity of the diaphragm (Eadi). Compared to pressure support ventilation (PS), it improves patient-ventilator synchrony and should allow a better expression of patient's intrinsic respiratory variability. We hypothesize that NAVA provides better matching ...
Fernandez Alvarez Ramon - - 2013
Leakage is common in patients receiving home mechanical ventilation (HMV) via a face mask. Although pressure ventilators have partial compensatory capacity, excessive leakage can compromise the effectiveness of treatment. Home ventilators are equipped with built-in software which provides information on leakage. However, the values of leakage and their effects in ...
Mojoli Francesco - - 2012
OBJECTIVE: To test the effects on mechanical performance of helmet noninvasive ventilation (NIV) of an optimized set-up concerning the ventilator settings, the ventilator circuit and the helmet itself. SUBJECTS AND METHODS: In a bench study, helmet NIV was applied to a physical model. Pressurization and depressurization rates and minute ventilation ...
Ghai Babita - - 2012
BACKGROUND: Clinical end points are often used to guide inflation and adequacy of cuff seal after laryngeal mask airway placement. However, clinical end points for cuff inflation have been shown to have significantly higher intracuff pressure. The adjusted cuff pressure between 55 and 60 cm H(2) O causes significantly better seal ...
Jiménez Caballero Pedro Enrique - - 2012
BACKGROUND: Cerebral vasoreactivity in obstructive sleep apnea syndrome is altered. Continuous positive airway pressure is effective in the reduction of the occurrence of apneas. We studied whether this treatment also improves cerebral vasoreactivity. METHODS: The breath-holding maneuver was performed and assessed by apnea test with transcranial Doppler in the basilar ...
Theiler L L Department of Anesthesiology, Perioperative Medicine and Pain Management, University of Miami Miller School of Medicine, Gautier Bldg, Room 415, 1011 N.W. 15th Street, Miami, FL 33136, USA. - - 2012
The i-gel™ supraglottic airway device has been studied in randomized controlled studies, but it has not been evaluated in a large prospective patient cohort. Therefore, we performed this prospective multicentre observational study to evaluate success rates, airway leak pressure, risk factors for i-gel failure, and adverse events. With Ethics Committee ...
Scherer Ronald - - 2012
The air pressures within the glottis during phonation may be highly dependent upon the symmetry of the glottis and other laryngeal structures. Physical laryngeal models M5 and M6 have been used to explore the slanted "oblique" glottis with different included and oblique angles, the change to three dimensions, and the ...
Ramadan M - - 2012
The pressure exerted by an endotracheal tube cuff against the tracheal wall depends on the compliance of the trachea and cuff.
Jane Pillow J - - 2012
Various commercial and home-made continuous positive airway pressure (CPAP) systems are described in this article. CPAP may be delivered via a range of device-patient interfaces; nasal CPAP is most common, and short binasal prongs impose the least extrinsic load impedance on the infant. The source of pressure generation is categorized ...
Nivan L - - 2012
Cricoid pressure has been long used by clinicians to reduce the risk of aspiration during tracheal intubation. Historically, it is defined by Sellick as temporary occlusion of the upper end of the oesophagus by backward pressure of the cricoid cartilage against the bodies of the cervical vertebrae. The clinical relevance ...
Sankaran Koravangattu - - 2012
In the era of gentle ventilation and open lung strategy noninvasive ventilatory support in neonates has gained momentum and its use in nurseries around the world is also increased. This paper reviews various modalities of non-invasive respiratory support in some details and its relevance in the recent evidence based use. ...
Gregson Rachael - - 2012
A 7-year-old gelded Irish sports horse weighing 650 kg was anesthetized on 2 consecutive days for lavage of a septic right radio-carpal joint. On both occasions the endotracheal tube connector, which had been bound in medical tape to produce an airtight seal, functioned as a unidirectional valve during mechanical ventilation, ...
Al Masry Ashraf - - 2012
The PEEP in ALI/ARDS had been used since its' description (1967). Up-to-date no optimal approach to PEEP setting had been introduced, however common approaches that had been introduced included Pressure volume curves, increasing PEEP trial, decreasing PEEP trial & PEEP/FiO2 tables adopted by ARDS network. The present work assessed the ...
Lee Jeong Han - - 2012
This study was designed to compare the effect of dexmedetomidine and remifentanil used in anesthetic induction on hemodynamic change after direct laryngoscopy and tracheal intubation. A total of 90 ASA class 1 or 2 patients were randomly assigned to one of 3 groups to receive one of the following treatments ...
Ko Duk-Dong - - 2012
Optiscope™ is a newly developed video stylet device. This study evaluated and compared the hemodynamic changes observed after endotracheal intubation with video stylet and after conventional laryngoscopic endotracheal intubation. Fifty-eight adult patients with American Society of Anesthesiologists (ASA) physical status class 1 or 2, undergoing general anesthesia, were randomized into ...
Gupta Kapil - - 2012
The flexible fibreoptic bronchoscope and bonfils rigid intubation endoscope are being widely used for difficult intubations. The haemodynamic response to intubation under general anaesthesia was studied in 60 adult female patients who were intubated using either flexible fibreoptic bronchoscope or bonfils rigid intubation endoscope (30 in each group). Non-invasive blood ...
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