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Results 251 - 300 of 1838
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Pipanmekaporn Tanyong - - 2013
The purpose of this study was to determine the effect of dexmedetomidine on hemodynamic responses to DLT intubation compared to placebo and to assess the adverse effects related to dexmedetomidine. Sixty patients were randomly allocated to receive 0.7  μ g/kg dexmedetomidine (n = 30) or normal saline (n = 30) ...
Dolan Anne M - - 2013
An approach which promotes a rapid return to spontaneous respiration after tracheobronchial stent (TBS) insertion is considered the optimal one and is a belief shared by anaesthetists, respiratory physicians, and surgeons alike (Calvey and William (2008)). The value of the laryngeal mask airway (LMA), followed by use of the Monsoon ...
Johnston James - - 2013
Negative pressure wound therapy (NPWT) is an effective modality in most areas of the body and is associated with more rapid healing. However the use of negative pressure remains a challenge in managing complex wounds of the head and neck region. We present the case of a patient with a ...
Hassani Valiallah V Department of Anesthesiology, Rasoul-Akram Medical Center, Iran University of Medical Sciences (IUMS), Tehran, Iran ; Minimally Invasive Surgery Research Center, Rasoul-Akram Medical Center, Iran University of Medical Sciences (IUMS), Tehran, - - 2013
Induction of anesthesia and endotracheal intubation often creates a period of hemodynamic instability in hypertensive patients. Endotracheal intubation of the trachea stimulates laryngeal and tracheal sensory receptors, resulting in a marked increase in the elaboration of sympathetic amines. This trial aimed to evaluate and compare the efficacy of fentanyl and ...
Endara-Bravo Andres A Sleep Medicine Program, University of Miami - Miller School of Medicine, Miami, - - 2013
Continuous positive airway pressure (CPAP) is a safe therapy for the management of obstructive sleep apnea (OSA). Complications such as sinus infection, bronchitis, ear pain, nasal congestion, and dryness of mucous membranes secondary to CPAP use have been reported. To follow, we describe a rare case of alternobaric vertigo secondary ...
Kolli Kranthi K KK School of Dynamic Systems, Mechanical Engineering Program, University of Cincinnati, Cincinnati, OH, USA Veteran Affairs Medical Center, Cincinnati, OH, - - 2013
The study of hemodynamics in an animal model simulating coronary stenosis has been limited due to the lack of a safe, accurate and reliable technique for creating an artificial stenosis. Creating artificial stenosis using occluders in an open-chest procedure has often caused myocardial infarction (MI) or severe injury to the ...
Ratajczyk PaweĊ‚ P Department of Emergency Medicine and Disaster Medicine, Medical University of Lodz, - - 2013
The aim of this study was to compare ventilation parameters during mechanical ventilation using Laryngeal Mask Airway (LMA), Laryngeal Tube (LT), and Peri-Laryngeal Airway Cobra (PLA). In a prospective, randomised controlled trial, 90 patients undergoing general anaesthesia for elective surgery were divided into three subgroups. The settings of controlled ventilation ...
Siew Melissa L - - 2012
Background:Recent phase contrast (PC) X-ray imaging studies suggest that inspiration primarily drives lung aeration and airway liquid clearance at birth, which questions the role of adrenaline-induced activation of epithelial sodium channels (ENaCs). We hypothesised that pressures generated by inspiration have a greater role in airway liquid clearance than ENaCs after ...
Bassi Gianluigi Li - - 2012
OBJECTIVE:: To assess the structural characteristics involved in the design of high-volume low-pressure endotracheal tube cuffs that are associated with fluid sealing effectiveness and to determine the extent of transmitted tracheal pressures upon cuff inflation. DESIGN:: In vitro study. SETTINGS:: Pneumology laboratories. INTERVENTIONS:: Eight high-volume low-pressure cuffs of cylindrical or ...
Kasiakogias Alexandros - - 2012
OBJECTIVE:: Several studies have reported a small yet significant decrease in blood pressure (BP) with continuous positive airway pressure (CPAP) application in patients with obstructive sleep apnea (OSA). We investigated the long-term efficiency of CPAP in the management of hypertensive patients with OSA on top of conventional antihypertensive medication. METHODS:: ...
Fujikawa Tetsuya - - 2012
OBJECTIVE:: We developed a new technique to measure blood pressure (BP) - the triple cuff and pulse delay time technique (TC-PDT) - which measures delay time with a single sensor at a single site unlike the existing delay time methods. This study aimed to evaluate the adequacy and accuracy of ...
Olivieri C - - 2012
OBJECTIVE: To evaluate the performance of a new helmet (NH) recently introduced into clinical use relative to that of the standard helmet (SH) in terms of delivering non-invasive continuous positive airway pressure (nCPAP) and pressure support ventilation (nPSV). DESIGN: This was a bench study using a mannequin connected to an ...
Uchiyama Akinori - - 2012
BACKGROUND. Resistance ofthe endotracheal tube (ETT),the heat moisture exchanger (HME),and the ventilator may affect patients' respiratory status. Although previous studies examined the inspiratory work of breathing (WOB), investigation of WOB in the expiratory phase is rare. We measured estimated tracheal pressure at the tip of an ETT (P(trach)) and calculated ...
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 ...
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