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Berger David - - 2014
IntroductionAssist in unison to the patient¿s inspiratory neural effort and feedback- controlled limitation of lung distension with neurally adjusted ventilatory assist (NAVA) may reduce the negative effects of mechanical ventilation on right ventricular function.MethodsHeart-lung interaction was evaluated in 10 intubated patients with impaired cardiac function using esophageal balloons, pulmonary artery ...
Suehiro Koichi K Department of Anesthesiology, Osaka City University Graduate School of Medicine, 1-5-7 Asahimachi, Abenoku, Osaka City, Osaka, 545-8586, Japan, - - 2014
This study was aimed at comparing the cardiac output (CO) measured by the Vigileo™-FloTrac™ system with that estimated by the thermodilution pulmonary artery catheter (PAC) during one-lung ventilation (OLV) and determining the reliability of this system in tracking phenylephrine-induced CO changes during OLV. Sixteen patients scheduled for descending aorta replacement ...
Strnad Matej M aCenter for Emergency Medicine, Community Health Center Maribor bMedical Faculty cFaculty of Health Sciences, University of Maribor, Maribor, - - 2014
The aim of this pilot study was to determine the usefulness of prehospital lung ultrasound in monitoring the effectiveness of treatment with continuous positive airway pressure (CPAP) versus standard therapy in patients with acute decompensated heart failure (ADHF). Twenty patients with ADHF were enrolled in this prospective, observational study. They ...
Loring Stephen H SH http://orcid.org/0000-0002-6277-3979 Beth Israel Deaconess Medical Center - - 2014
Pneumoperitoneum for laparoscopic surgery is known to stiffen the chest wall and respiratory system, but its effects on resting pleural pressure in humans are unknown. We hypothesized that pneumoperitoneum would raise abdominal pressure, push the diaphragm into the thorax, raise pleural pressure and squeeze the lung, which would become stiffer ...
Fremuth Jiri J Pediatric intensive care unit (PICU), Department of Pediatrics, Faculty of Medicine, Charles University of Prague in Pilsen, Pilsen, Czech Republic - - 2014
Background: The aim of this comparative study was to assess the impact of two different settings of tidal volume (Vt) on the function and morphology of the mechanically ventilated lungs during a 12-h period. Materials and Methods: A total of 32 animals were randomly divided into two groups. Group A ...
Retamal Jaime - - 2014
IntroductionWhen alveoli collapse the traction forces exerted on their walls by adjacent expanded units may increase and concentrate. These forces may promote its re-expansion at the expense of potentially injurious stresses at the interface between the collapsed and the expanded units. We developed an experimental model to test the hypothesis ...
Potkay Joseph A JA VA Ann Arbor Healthcare System, Ann Arbor, MI 48105, USA. - - 2014
Microfluidic or microchannel artificial lungs promise to enable a new class of truly portable, therapeutic artificial lungs through feature sizes and blood channel designs that closely mimic those found in their natural counterpart. These new artificial lungs could potentially: 1) have surface areas and priming volumes that are a fraction ...
Guler Hasan H Department of Electrical-Electronics Engineering, Faculty of Engineering, Firat University, Elaziğ, Turkey - - 2014
The aim of this article is to develop a knowledge-based therapy for management of rats with respiratory distress. A mechanical ventilator was designed to achieve this aim. The designed ventilator is called an intelligent mechanical ventilator since fuzzy logic was used to control the pneumatic equipment according to the rat's ...
Ziebart Alexander - - 2014
BackgroundIn moderate acute respiratory distress syndrome (ARDS) several studies support the usage of assisted spontaneous breathing modes. Only limited data, however, focus on the application in systemic sepsis and developing lung injury. The present study examines the effects of immediate initiation of pressure support ventilation (PSV) in a model of ...
Blakeman Thomas T University of Cincinnati Department of Surgery, Division of Trauma and Critical Care , Cincinnati, OH , - - 2014
Abstract Purpose: Early ambulation in the ventilated patient is gaining wider acceptance. We evaluated a new portable (1 lb), gas powered, volume ventilator designed for NIV via a proprietary nasal pillows interface (Breathe Technologies, CA). We developed a model to approximate a patient's nose, upper airway and trachea. The model ...
Vargas Maria M Department of Neuroscience and Reproductive and Odontostomatological Sciences, University of Naples "Federico II," Naples, Italy; - - 2014
Percutaneous dilational tracheostomy is normally a bronchoscope-guided procedure. The insertion of a bronchoscope into an endotracheal tube (ETT) affects resistance, flow, and alveolar pressure. To improve airway management and ventilation during percutaneous tracheostomy, we developed a double lumen endotracheal tube (DLET). The aim of this in vitro study was to ...
Carvalho Nadja C NC 1Department of Anesthesiology and Intensive Care Medicine, Pulmonary Engineering Group, University Hospital Dresden, Technische Universität Dresden, Dresden, Germany. 2Department of Electronic Engineering, Federal University of Minas Gerais, Belo Horizonte, Brazil. 3Institute for Medical Informatics and Biometry, Technische Universität Dresden, Dresden, Germany. 4Institute of Anatomy, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany. 5Laboratory of Pulmonary Investigation, Carlos Chagas Filho Biophysics Institute, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.. 6Department of Surgical Sciences and Integrated Diagnostics, IRCCS San Martino Hospital, University of Genoa, Genoa, - - 2014
To assess the effects of different levels of spontaneous breathing during biphasic positive airway pressure/airway pressure release ventilation on lung function and injury in an experimental model of moderate acute respiratory distress syndrome. Multiple-arm randomized experimental study. University hospital research facility. Thirty-six juvenile pigs. Pigs were anesthetized, intubated, and mechanically ...
Hong Sung Ok SO From the Departments of *Oral Maxillofacial Surgery and †Anesthesiology and Pain Medicine, School of Medicine, Kyung Hee University Dental Hospital at Gangdong, Kyung Hee University, Seoul, Republic of - - 2014
Perioperative pulmonary edema is a rare complication of maxillofacial surgery. However, this potentially fatal complication may arise during any maxillofacial surgery. Negative pressure pulmonary edema can be caused by upper airway obstruction after operation. When this phenomenon arises, if not treated properly, it progresses rapidly causing fatal outcomes. Because orthognathic ...
Wirth Steffen S Division of Experimental Anesthesiology, Department of Anesthesiology and Intensive Care Medicine, University Medical Center, Hugstetter Straße 55, Freiburg, Germany. Electronic address: - - 2014
Recently, we presented Flow Controlled Expiration (FLEX) as a new option for lung-protective ventilation. FLEX delays the expiratory volume decrease in the lungs without prolonging the duration of expiration. Most ventilated patients nowadays receive spontaneous breathing support. We investigated whether FLEX is tolerated by awake subjects. In 24 healthy subjects ...
Stanzi Alessia A Laboratory for Experimental Thoracic Surgery, Department of Clinical and Experimental Medicine, KU Leuven University, Leuven, Belgium; Department of Thoracic Surgery, Ospedale Maggiore Policlinico, University of Milan, Milan, - - 2014
After normothermic ex vivo lung perfusion (EVLP), pulmonary grafts are usually flush-cooled and stored on ice until implantation although evidence for this practice lacks. We compared outcomes between 2 post-EVLP preservation strategies in a porcine left single-lung transplantation model. After cold flush and 2-h EVLP, donor lungs were prepared and split. ...
Bakhshesh Morteza M Department of Physiology, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran. - - 2014
Nasal mucosa has an extraordinary nerve supply with unique geometry that encompasses complex physiology. Among these, side-specific predilections to the respiratory and autonomic centers are the interesting issues that have been raised about the consequences of the nasal irritations. The aim of the study was an evaluation of how intranasal ...
Hartland Benjamin L - - 2014
Awake, spontaneously breathing humans sigh on average 9 to 10 times per hour. The sigh is a normal homeostatic reflex proposed to maintain pulmonary compliance and decrease the formation of atelectasis by recruiting collapsed alveoli. The induction and maintenance of anesthesia with muscle paralysis and a fixed tidal volume abolish ...
Lavoisier Pierre P P. Lavoisier, PT, MD, Centre d'Etudes des Dysfonctions Sexuelles (CEDS), 153 Rue Pierre Corneille 69003, Lyon, - - 2014
In men, involuntary or voluntary ischiocavernosus muscle contractions after erection lead to intracavernous blood pressures far higher than the systolic pressure, which builds and maintains penile rigidity. Thus, erectile dysfunction may be partly due to ischiocavernosus muscle atrophy and treated by rehabilitation interventions. Determine whether pelvic floor muscle strengthening interventions ...
Smith Andrea L AL Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California-Davis, Davis, - - 2014
Lung lobectomy is necessary in neonatal patients for the treatment of a variety of congenital bronchopulmonary malformations. The working space required for traditional stapling devices limits their use in pediatric video-assisted thoracoscopic (VATS) lung lobectomy. The use of Hem-o-lok clips (Teleflex Medical Inc. Research Triangle Park, NC) has been described ...
Izumi Hideaki H Department of Urology, Tohoku University Graduate School of Medicine, 1-1 Seiryomachi, Aoba-ku, Sendai, 980-8574, - - 2014
Effects of tadalafil, a phosphodiesterase type 5 inhibitor, on the urethral continence reflex induced by sneezing were investigated. The amplitude of urethral pressure responses during sneezing (A-URS) and urethral baseline pressure (UBP) were measured in female rats using a microtransducer-tipped catheter. Sneeze leak-point pressure (S-LPP), defined as the lowest amount ...
Ludolph Ingo I Department of Plastic and Hand Surgery and Laboratory for Tissue Engineering and Regenerative Medicine, University Hospital of Erlangen, Friedrich-Alexander-University of Erlangen-Nuernberg, Erlangen, - - 2014
The aim of this article is to improve the treatment of patients with complete skin loss of the penile shaft after Fournier's gangrene or hidradenitis suppurativa using modern biomatrices and topical negative pressure therapy. From January 2010 to December 2011, three patients with Fournier's gangrene or hidradenitis suppurativa were treated. ...
Saaby Marie-Louise ML Sorgenfrigaardsvej 108b, 2800 Lyngby, Denmark. - - 2014
Stress urinary incontinence (SUI) occurs when the bladder pressure exceeds the urethral pressure in connection with physical effort or exertion or when sneezing or coughing and depends both on the strength of the urethral closure function and the abdominal pressure to which it is subjected. The urethral closure function in ...
Shi Yan Y School of Automation Science and Electrical Engineering, Beihang University, Beijing 100191, China ; The State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, Hangzhou 310058, China ; Department of Mechanical Engineering, University of Bath, Bath BA2 7AY, - - 2014
Mechanical ventilation is an important life support treatment of critically ill patients, and air pressure dynamics of human lung affect ventilation treatment effects. In this paper, in order to obtain the influences of seven key parameters of mechanical ventilation system on the pressure dynamics of human lung, firstly, mechanical ventilation ...
Goikoetxea Estibalitz E Research Unit for Experimental Neonatal Respiratory Physiology, Cruces University Hospital, Barakaldo, Bizkaia, Spain; Thermal and Fluids Engineering Division, Mechanical Engineering Department, TECNUN, University of Navarra, San Sebastian, Gipuzkoa, - - 2014
Aerosol delivery holds potential to release surfactant or perfluorocarbon (PFC) to the lungs of neonates with respiratory distress syndrome with minimal airway manipulation. Nevertheless, lung deposition in neonates tends to be very low due to extremely low lung volumes, narrow airways and high respiratory rates. In the present study, the ...
Tong Kim - - 2013
To describe (1) the radiographic appearance of intact hydraulic urethral sphincters (HUS) and (2) the success of leak detection using clinically feasible methods. Prospective, blinded in vitro study. Thirty HUS devices (10 each of 8, 10, and 12 mm diameter sizes). All devices were inflated with saline (0.9% NaCl) solution to ...
Lee J H - - 2013
A recording of the intracavernosal pressure (ICP) in conscious rats using telemetry has the advantage of being able to evaluate erection under physiological conditions. The aim of this study was to determine whether the radiotelemetric assessment of ICP in apomorphine-induced erection is appropriate for assessing erectile function in an animal ...
Corona-Quintanilla Dora L - - 2013
AIM: To evaluate the role of pelvic and perineal striated muscles on urethral function during micturition. METHODS: Pubococcygeus, or both bulbospongiosus and ischiocavernosus muscles were electrically stimulated during the voiding phase of micturition, and bladder and urethral pressure were simultaneously recorded in urethane anesthetized female rabbits. Bladder and urethral function ...
Wang Zhihong - - 2013
We investigated the dependence of electromechanical coupling and the piezoelectric response of a micromachined Pb(Zr0.52Ti0.48)O3 (PZT) diaphragm on its curvature by observing the impedance spectrum and central deflection responses to a small AC voltage. The curvature of the diaphragm was controlled by applying air pressure to its back. We found ...
Carvell James J Paediatric Department, Heartlands Hospital, Birmingham, UK - - 2013
This report outlines the case of a 3-year-old boy whose initial presentation was that of asymptomatic hypertension (lowest recording 148/90), found at preoperative check prior to stage 2-correction surgery for distal hypospadias. Upon diagnosis of true hypertension, an ultrasound of the child's renal tract showed evidence of marked hydronephrosis and ...
Jesus L E - - 2012
OBJECTIVE: Abnormal uroflowmetries are common after tubularized incised plate urethroplasties (TIP), perhaps due to low compliance. We hypothesized that (1) abnormal uroflowmetries after TIP might be caused by segmental lower compliance; (2) by adding a graft to the raw area in the incised plate (TIPG), compliance might be improved by ...
Anusionwu Ifeanyi - - 2012
PURPOSE: We compared cuff sites and assessed anatomical and manometric differences between the transscrotal and perineal approaches to artificial urinary sphincter placement in fresh male cadavers. MATERIALS AND METHODS: Artificial urinary sphincter implantation using perineal and transscrotal incisions was performed in 15 fresh male cadavers. The artificial urinary sphincter cuffs ...
Ishimatsu Naoki - - 2012
Nano-polycrystalline diamond (NPD) [Irifune et al. (2003), Nature (London), 421, 599] has been used to obtain a glitch-free X-ray absorption spectrum under high pressure. In the case of conventional single-crystal diamond (SCD) anvils, glitches owing to Bragg diffraction from the anvils are superimposed on X-ray absorption spectra. The glitch has ...
Hannah Daniel C - - 2012
A lack of consensus persists regarding the origin of photoluminescence in silicon nanocrystals. Here we report pressure-dependences of x-ray diffraction and photoluminescence from alkane-terminated colloidal particles. We determine the diamond-phase bulk modulus, observe multiple phase transitions, and importantly find a systematic photoluminescence red-shift that matches the Xconduction-to-valence transition of bulk ...
Liu Yihong - - 2012
Pinned water films in a microfluidic channel act as elastic membranes under tension that increase capillary pressures while preserving the mechanical work dissipated around capillary pressure-saturation, P(c)-S(w), hysteresis cycles. High-resolution two-photon laser micromachining of SU-8 photoresist was used to fabricate wedge-shaped microfluidic channels that included sharp edge features to pin ...
Senbel Amira M - - 2012
Objectives  This study aims to further elucidate the role of adrenergic transmission in erection and to highlight whether adrenergic transmission in the penis modulates sildenafil's action. Methods  measurement of intracavernosal pressure in the anesthetized rat model. Key findings  Guanethidine (3 and 6 mg/kg) potentiated intracavernosal pressure/mean arterial pressure (ICP/MAP) rises in ...
Kadhim Muayad - - 2012
Planovalgus foot deformity is common in children with cerebral palsy. Several pathologies contribute to the deformity. It begins with the lateral displacement of the navicular and the talar head becomes uncovered and prominent in the medial side of the midfoot. The purpose of this study was to assess the correlation ...
Eshet Hagai H Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich, Switzerland. - - 2012
X-ray diffraction experiments have shown that sodium exhibits a dramatic pressure-induced drop in melting temperature, which extends from 1000 K at ~30 GPa to as low as room temperature at ~120 GPa. Despite significant theoretical effort to understand the anomalous melting, its origins are still debated. In this work, we ...
Ryan Silke - - 2011
Side-effects directly due to the nasal mask are common in patients with obstructive sleep apnoea syndrome (OSAS) commencing continuous positive airway pressure (CPAP). Recently, nasal pillows have been designed to overcome these issues. Limited evidence exists of the benefits and effectiveness of these devices. Twenty-one patients (19 male, 49±10years) with ...
Goldberg David S - - 2011
56-year-old man who had previously undergone Jones tube placement began nasal continuous positive airway pressure for obstructive sleep apnea. Continuous positive airway pressure was not tolerated due to air regurgitation. A novel and simple treatment was devised by taping a small piece of wet cotton over the external end of ...
Weingarten Toby N - - 2011
BACKGROUND: The purpose of this study was to determine if the routine use of postoperative continuous positive airway pressure (CPAP) in patients undergoing laparoscopic Roux-en-Y gastric bypass (RYGB) is associated with an increase in transmural gastric pouch pressure, which may create the risk for anastomotic leak. METHODS: Transmural gastric pressures ...
Silvestrini Nicolas - - 2011
This experiment investigated the combined effect of masked affective stimuli and task difficulty on effort-related cardiovascular response. Cardiovascular reactivity (ICG, blood pressure) was recorded during a baseline period and performance of an easy or difficult attention task in which participants were exposed to masked sad vs. happy facial expressions. As ...
Deeter Kristina H KH Department of Pediatrics, Seattle Children's Hospital, University of Washington, Seattle, WA, - - 2011
Diabetic ketoacidosis (DKA) may result in both dehydration and cerebral edema but these processes may have opposing effects on blood pressure. We examined the relationship between dehydration and blood pressure in pediatric DKA. A retrospective review was performed at Seattle Children's Hospital, Seattle, WA. Participants were hospitalized children less than ...
Soo J C L - - 2011
The scientific justification for particular values of intra-operative hypotension is poorly substantiated. To provide a rationale for appropriate values we recorded blood pressure measurements at home for 24 h using an automated non-invasive ambulatory blood pressure measurement device. These blood pressures were compared with blood pressure measured before and during general ...
Astengo Marco - - 2011
Background: Blood pressure (BP) variations occurring after hospital discharge in a population of older hypertensives have not been previously investigated. Design: elderly (≥65 years) hypertensives admitted to the geriatric acute ward of a university-teaching hospital were enrolled in this prospective observational study. Methods: Exclusion criteria were terminal illness, discharge to ...
Sung Shih-Hsien - - 2011
BackgroundThe role of pulsatile hemodynamics in the management of patients with acute heart failure syndrome (AHFS) remains to be elucidated. We investigated the changes of the pulsatile hemodynamics along the hospital course of AHFS in relation to short-term outcomes.MethodsA total of 80 AHFS patients (73.2 ± 14.1 years, 82.5% men) ...
Bakker Jessie - - 2011
Auto-adjusting positive airway pressure (APAP) devices are being increasingly used to treat obstructive sleep apnoea (OSA). Anecdotal encounters of obese patients requiring high therapeutic pressure whose OSA was inadequately controlled by APAP led to this study aiming to compare the effectiveness of continuous positive airway pressure (CPAP) and APAP (S8 ...
Nakajima Tadashi - - 2011
Objective This study aimed to identify factors associated with the functional outcomes of patients with cerebral embolism due to nonvalvular atrial fibrillation. Methods We retrospectively investigated the short-term functional outcomes of 134 patients diagnosed with cardiogenic cerebral embolism due to nonvalvular atrial fibrillation during the period of May 2006 to ...
Wald Martin - - 2011
Continuous positive airway pressure (CPAP) systems for preterm infants work with conventional ventilators or use a jet ventilation system. It is assumed that the most important advantage of jet-CPAP systems is a lower expiratory resistance (R(E) ). We investigated the R(E) of seven different CPAP systems. We studied two primary-care ...
Hasan Rashed A - - 2011
Use of high-flow humidified nasal cannulas to deliver continuous positive airway pressure in children is increasing. Data on the relationship between the flow values and the corresponding pressures are limited. The purpose of this experiment was to evaluate the relationship between the device, intraprong, and proximal airway pressures and the ...
Wang Jian-Qiang JQ Department of Critical Care Medicine, Jintan Hospital Affiliated to Jiangsu University, Jintan 213200, China; ICU, Zhongda Hospital, South-East University, Nanjing 210009, China (Pan C, Liu L, Jin L, Yang Y, Qiu - - 2011
This study aimed to observe the effect of recruitment maneuver (RM) and post-RM ventilation at different tidal volume on lung vascular diastole endothelial function in rats with acute lung injury (ALI). A ALI rat model was produced by intravenous infusion of lipopolysaccharide (6 mg/ kg). Twenty-five rats were randomly divided ...
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