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Ritz Thomas - - 2011
Objectives To build upon prior research on stress-related breathing pattern changes in asthma. Previous research has considered a limited set of respiratory parameters and has remained equivocal. Emotions and stress are known to change the respiratory pattern. In asthma, certain breathing patterns have adverse effects on the airways and lead ...
Gupta Rockendra R Department of Food Science and Technology, The Ohio State University, Columbus, OH 43210, - - 2011
This study highlights the changes in lycopene and β-carotene retention in tomato juice subjected to combined pressure-temperature (P-T) treatments ((high-pressure processing (HPP; 500-700 MPa, 30 °C), pressure-assisted thermal processing (PATP; 500-700 MPa, 100 °C), and thermal processing (TP; 0.1 MPa, 100 °C)) for up to 10 min. Processing treatments utilized ...
Massey Christopher J - - 2011
A significant biochemical change that takes place in intervertebral disc degeneration is the loss of proteoglycans in the nucleus pulposus. Proteoglycans attract fluid, which works to reduce mechanical stresses in the solid matrix of the nucleus and provide a hydrostatic pressure to the annulus fibrosus, whose fibrous nature accommodates this ...
Cong Yan - - 2011
Abnormal and excessive plantar pressure and shear are potential risk factors for high-heeled related foot problems, such as forefoot pain, hallux valgus deformity and calluses. Plantar shear stresses could be of particular importance with an inclined supporting surface of high-heeled shoe. This study aimed to investigate the contact pressures and ...
Timofeev Ivan I Division of Neurosurgery, University of Cambridge, Addenbrooke's Hospital, Cambridge, United Kingdom. - - 2011
Bedside monitoring of cerebral metabolism in traumatic brain injury (TBI) with microdialysis is gaining wider clinical acceptance. The objective of this study was to examine the relationship between the fundamental physiological neuromonitoring modalities intracranial pressure (ICP), cerebral perfusion pressure (CPP), brain tissue oxygen (P(bt)O(2)), and cerebrovascular pressure reactivity index (PRx), ...
Anesäter Erik - - 2011
The use of a rigid disc as a barrier between the wound bed and the wound filler during negative pressure wound therapy (NPWT) has been suggested to prevent damage to exposed organs. However, it is important to determine that the effects of NPWT, such as wound contraction and fluid removal, ...
Anesäter Erik - - 2011
Negative pressure wound therapy (NPWT) contracts the wound and alters the pressure in the tissue of the wound edge, which accelerates wound healing. The aim of this study was to examine the effect of the type (foam or gauze) and size (small or large) of wound filler for NPWT on ...
Cilurzo Francesco - - 2011
The current work aimed to propose a system of scoring to rationalize and support the selection of the optimal diameter and length of needles. Four formulations at different viscosity and needles ranging from 21 to 26 G and length ranging from 16 to 40 mm were used. Plunger-stopper breakloose force, ...
Martínez-Nova Alfonso - - 2011
Mild hallux valgus (HV), which can lead to alteration of the plantar pressure pattern with an overpressure under the hallux, can be repaired percutaneously. Our goals were to determine whether the percutaneous distal soft tissue release (DSTR)-Akin procedure restores the loading pattern and to evaluate which are the determinants of ...
Karabulut Murat - - 2011
Blood flow restriction training technique can be affected by several factors resulting in changes in responses to training; therefore it is necessary to investigate and reveal detailed information about this novel training technique. Participants had their thigh size, thickness of subcutaneous fat, and regional bone free muscle mass measured prior ...
Jia Xiao-Yan - - 2011
The vascularized capitate transposition has been designed to treat advanced Kienböck disease, in which the necrotic lunate is excised and the vascularized capitate bone graft is proximally shifted into the lunate fossa to reconstruct the radiocarpal joint. Since it notably alters the normal anatomy of the wrist, the anatomical alterations ...
Auerbach Joshua D - - 2011
STRUCTURED ABSTRACT: Study Design: In-vitro cadaveric studyObjective: The purpose of this study was to quantify the relative biomechanical protection resulting from "saving a level" in long spinal fusions.Summary of Background Data: "Saving levels" in spinal deformity surgery is desirable. Constructs with lowest instrumented vertebrae (LIV) in the lumbar spine may ...
Job Agnès - - 2011
Middle ear sensory information has never been localized in the homunculus of the somatosensory cortex (S1). We investigated the somatosensory representation of the middle ear in 15 normal hearing subjects. We applied small air pressure variations to the tympanic membrane while performing a 3T-fMRI study. Unilateral stimulations of the right ...
Hughes C M - - 2011
Reflexology has been shown to reduce anxiety and stress in various populations. The mechanism by which this occurs may be in modulating autonomic nervous system (ANS) function; however; there is limited evidence available in the area. The aim of the study was to investigate the feasibility of using an experimental ...
Selvaraj N - - 2011
Accurate and early detection of blood volume loss would greatly improve intraoperative and trauma care. This study has attempted to determine early diagnostic and quantitative markers for blood volume loss by analyzing photoplethysmogram (PPG) data from ear, finger and forehead sites with our high-resolution time-frequency spectral (TFS) technique in spontaneously ...
Kasanen I H E - - 2011
Individual and permanent identification of experimental animals is a common and often essential research practice. There is little information available on the short-term effects of these procedures on the animals. In this study, seven rats were implanted with telemetric devices. The effects of three different identification methods (ear tattoo, ear ...
Myers Stephan R - - 2011
BACKGROUND: Anastomotic leak after gastrointestinal anastomosis is a well-known and serious complication, yet there is no standardized approach to reliably create an anastomosis with sufficient mechanical properties to consistently avoid an anastomotic leak. The purpose of this study was to evaluate the relationships among combined tissue thickness, tissue compression, closed ...
Marchioni Daniele - - 2011
Epitympanic primary cholesteatoma represents a challenge for ENT surgeons. Its exact pathogenesis is still unknown because of the very complex anatomy of this region. Until now, only a few authors have described this region and tried to hypothesize the causes that could lead to cholesteatoma genesis. We hypothesize the existence ...
Krzemiński T F - - 2011
Krzemiński TF, Gilowski Ł, Wiench R, Płocica I, Kondzielnik P, Sielańczyk A. Comparison of ropivacaine and articaine with epinephrine for infiltration anaesthesia in dentistry - a randomized study. International Endodontic Journal. ABSTRACT: Aim  To compare the efficacy, onset time and duration of maxillary infiltration anaesthesia with 0.5% plain ropivacaine or ...
Tompkins Marc - - 2011
PURPOSE: To evaluate whether the use of knotless lateral anchors in a suture bridge construct produces better contact area and pressure parameters than a suture bridge construct with standard lateral anchors that require knots or a double-row repair. The hypothesis was that knotless lateral anchors would produce better contact area ...
Hayward Wap - - 2011
Objective: Hydrodissection and high-pressure injection are important for the treatment of dense connective tissue lesions including rheumatoid nodules, Dupuytren's contracture, and trigger finger. The present study determined the optimal syringes for high-pressure injection of dense connective tissue lesions. Methods: Different sizes (1, 3, 5, 10, 20, and 60 mL) of ...
Pattavilakom Ananthababu - - 2011
BACKGROUND:: Retraction injury might explain the soft tissue complications seen after anterior cervical surgery. A novel retractor system (SRS), using a principle of bone fixation with rotation, has been shown to reduce retraction pressure in a cadaveric model of anterior cervical decompression and fusion (ACDF). OBJECTIVE:: To compare conventional Cloward ...
Christal Aric A - - 2011
: The purpose of this study was to examine the efficacy of a fluoroscopically guided hip capsulotomy. : Ten fresh-frozen paired cadaveric hips were injected under fluoroscopic guidance with saline sufficient to generate an intra-articular pressure greater than 58 mmHg. The pressure was monitored continuously using a percutaneous transducer. A ...
Atik O Sahap - - 2011
We describe a case, which gives an answer to the question of 'Does the surgical repair of the acute Achilles tendon ruptures cause the structural changes in the 15-year follow-up?' The only complaint of the patient was the feeling of that the size of the left foot is smaller than ...
Lin Hsin-Ching - - 2011
To study the effect of Z-palatopharyngoplasty plus radiofrequency of the base of the tongue on middle ear function. A retrospective review of a prospective data set at a tertiary care center. University-affiliated medical center. The study population included 47 patients (42 men and 5 women; mean age, 40.8 years) who ...
Kim Doo-Sup - - 2011
BACKGROUND: Despite the attention that has been paid to restoration of the capsulolabral complex anatomic insertion onto the glenoid, studies comparing the pressurized contact area and mean interface pressure at the anatomic insertion site between a single-row repair and a double-row labral repair have been uncommon. PURPOSE: The purpose of ...
Noble E J - - 2011
BACKGROUND: Several instruments are available for open and laparoscopic dissection, including electrothermal bipolar vessel sealers and ultrasonically coagulating shears. The vessel sealing ability of three devices in colorectal specimens was compared in an experimental study. METHODS: Surgical specimens from patients scheduled for elective open or laparoscopic colorectal resection were allocated ...
Yu Jun - - 2011
The aim of the present study was to examine the expression of glutamine synthetase (GS) in rat retinal Müller cells induced by different levels of hydrostatic pressure using a novel pressure mechanism. pH, PCO(2) or PO2 in culture medium as determined by gas analysis was used to examine the pressure ...
Schrey Aleksi - - 2011
Abstract Conclusion: This study suggests that although oxygen partial pressure in tissue (p (ti)O(2)) measurement is a feasible method for continuous postoperative monitoring of free flaps, low correlation between blood pressure (BP) and p (ti)O(2) might predict compromised overall outcome. Thus, it is of utmost importance to keep the BP ...
Hofer Jason K - - 2011
BACKGROUND: Repetitive kneeling in certain occupations, hobbies and cultures is associated with tibiofemoral joint osteoarthritis. The biomechanics of kneeling is therefore of interest. This cadaveric study investigated tibiofemoral joint contact areas, pressures, and kinematics in response to kneeling. METHODS: Five human cadaveric knees were subjected to simulated kneeling at flexion ...
De Maria Carmelo - - 2011
A novel squeeze pressure bioreactor (SQPR) for non-contact hydrodynamic stimulation of cartilage is described. The bioreactor is based on a small piston which moves up and down, perpendicular to a tissue construct, in a fluid-filled chamber. Fluid displaced by the piston generates a pressure wave as well as shear stress ...
Portnoy Sigal - - 2011
Spinal cord injury patients are under daily risk for developing deep tissue injury which is a severe pressure ulcer that initiates in soft tissues at the bones' proximity. We aimed to formulate a patient-specific biomechanical model that can continuously monitor internal tissue stresses in real time. We adopted a formulation ...
Duggan John P JP - - 2011
Complete ulnar collateral ligament (UCL) injury increases articular pressure and reduces contact area compared with the normal intact UCL. UCL reconstruction restores the contact area and contact pressure observed in the native joint. Six male cadaveric elbows were mounted on a custom jig capable of simulating the 2 critical phases ...
Voermans R P - - 2011
Colonic perforation is a serious complication of colonoscopy, with surgical repair usually indicated. The aim was to compare acute strength of various endoscopic colonic closure techniques by assessing air leak pressures in a previously described ex vivo experimental apparatus. Standardized colonic perforations were created using fresh porcine colon and subsequently ...
Curtis Cara Anne - - 2011
A pressure ulcer is a medical complication that arises in persons with decreased mobility and/or sensation. Deep pressure ulcers starting at the bone-muscle interface are the most dangerous, as they can cause extensive damage before showing any signs at the skin surface. We previously proposed a novel intervention called intermittent ...
Schmidt Hendrik - - 2011
Previous biphasic finite element studies investigated the temporal response of a spinal segment under rather simplified loading conditions with no attention to unloading and recovery phases. Employment of existing constitutive relations in porous media yields rather large suction-type pore pressures in the disc as the load suddenly disappears. Such negative ...
Bariteau Jason T - - 2011
While intracompartmental pressure monitoring is a widely used diagnostic tool to measure intracompartmental pressures in the setting of compartment syndrome, its invasive nature has prompted the development of noninvasive techniques, such as near-infrared spectrometry. We prospectively assessed the association between tissue oxygen saturation measured by near-infrared spectrometry and compartment pressure ...
Rasdi A R - - 2011
The aim of this study was to determine the prevalence of hypertensive retinopathy, features of hypertensive retinopathy and visual outcome in hypertensive disorders in pregnancy in Hospital Universiti Sains Malaysia, Kelantan, Malaysia. A prospective observational hospital based study involving 154 patients (308 eyes) with hypertensive disorders in pregnancy was conducted. ...
Kim Namkeun - - 2011
Of the two pathways through which we hear, air conduction (AC) and bone conduction (BC), the fundamental mechanisms of the BC pathway remain poorly understood, despite their clinical significance. A finite element model of a human middle ear and cochlea was developed to gain insight into the mechanisms of BC ...
Holmer Christoph - - 2011
PURPOSE: In recent years, vessel sealing has become a well-established method in surgical practice for sealing and transecting vessels. Since this technology depends on the fusion of collagen fibers abundantly present in the intestinal wall, it should also be possible to create intestinal anastomoses by thermofusion. Bipolar radiofrequency-induced thermofusion of ...
Boyd Nathan H - - 2011
Objective. Tragal pumping is the practice of pushing on the tragus to raise pressure in the external auditory canal. This is a study to determine if tragal pumping improves middle ear penetration of ototopical medications via a patent pressure equalization tube. Study Design. Prospective, randomized controlled trial. Setting. Tertiary referral ...
Buser Zorica - - 2011
STRUCTURED ABSTRACT: Study Design: Surgically-denucleated porcine intervertebral discs (IVD) were injected with BIOSTAT BIOLOGX® Fibrin Sealant (FS), and the in vivo effects were assessed over time by histological, biochemical and mechanical criteria.Objectives: The objectives were to test whether the intradiscal injection of FS stimulates disc healing.Summary of background data: Disc ...
Bacani C Joseph - - 2011
BACKGROUND: Measurement of intracranial pressure (ICP) is recommended in comatose acute liver failure (ALF) patients due to risk of rapid global cerebral edema. External ventricular drains (EVD) can be placed to drain cerebrospinal fluid and monitor ICP simultaneously although this remains controversial in the neurosurgical community given the risk of ...
Koreckij Jason - - 2011
Study Design. Prospective, two way complete block design analyzing facial contact pressures during prone positioning with the use of cervical traction for spinal surgery. Level 2 evidence.Objective. To assess the effect of varying traction angle and traction weight to limit facial contact pressure.Summary of Background Data. Posterior spine surgery has ...
Moerman Annelies - - 2011
Purpose: To describe a simple, noninvasive technique to detect changes in oxygen saturation at the level of the spinal cord and to suggest its suitability for individualized blood pressure management during and after thoracoabdominal aneurysm repair. Case Report: A 53-year-old man with a history of multiple arch and thoracic aortic ...
Arksornnukit Mansuang - - 2011
Pressure transmission and distribution under denture bases may be variable depending on the different materials and cuspal angulations of denture teeth. The purpose of this study was to evaluate pressure transmission and distribution under impact load using denture teeth made with different materials and cuspal angulations. Three types (acrylic resin, ...
Keefe Douglas H - - 2011
An insert ear-canal probe including sound source and microphone can deliver a calibrated sound power level to the ear. The aural power absorbed is proportional to the product of mean-squared forward pressure, ear-canal area, and absorbance, in which the sound field is represented using forward (reverse) waves traveling toward (away ...
Bunton Kate K Department of Speech, Language, and Hearing Sciences, University of Arizona, Tucson, Arizona, USA. - - 2011
Clinical evaluation of velopharyngeal function relies heavily on auditory perceptual judgments that can be supported by instrumental examination of the velopharyngeal valve. Many of the current instrumental techniques are difficult to interpret, expensive, and/or unavailable to clinicians. Proposed in this report is a minimally invasive and inexpensive approach to evaluating ...
Poh Seng-Yew - - 2011
The anterior intermeniscal ligament (AIML) is an anatomically distinct structure that connects the anterior horns of the medial and lateral menisci. We hypothesized that both menisci work together as a unit in converting axial joint loading into circumferential hoop stresses, due to intermeniscal attachments. Therefore, loss of the AIML could ...
Carreau Aude - - 2011
Oxygen supply and diffusion into tissues are necessary for survival. The oxygen partial pressure (PO(2) ), which is a key component of the physiological state of an organ, results from the balance between oxygen delivery and its consumption. In mammals, oxygen is transported by red blood cells circulating in a ...
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