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Bush Mark B MB School of Mechanical and Chemical Engineering, The University of Western Australia, M050, 35 Stirling Hwy, Crawley, WA, 6081, Australia, - - 2014
Existing theories for micturition in the female mandate total relaxation of the pelvic floor while detrusor pressure pushes the urethra open. However, video X-ray and electromyogram data indicate that micturition is preceded by active outwards opening of the outflow tract by backward-/downward-acting muscle vectors. If the detrusor pressure alone is ...
Broens Paul M A PM Department of Surgery, Anorectal Physiology Laboratory, University Medical Center Groningen, University of Groningen, Groningen, The - - 2014
The vaginal canal is an active and responsive canal. It has pressure variations along its length and shows reflex activity. At present, the prevailing idea is that the vaginal canal does not have a sphincter mechanism. It is hypothesized that an active vaginal muscular mechanism exists and might be involved ...
Mérillon Jean Paul JP Suresnes, France. Electronic address: - - 2014
Left ejection fraction (LVEF) - resulting from the difference between end-diastolic volume (EDV) and end-systolic volume (ESV), divided by EDV - is a poor index of left ventricular (LV) systolic performance due to its dependency on load conditions, inotropic state and LV remodelling. The characteristic impedance of the ascending aorta (Zc) integrates ...
Kuribayashi S S Department of Gastroenterology, Gunma University Hospital, Gunma, Japan; Department of Gastroenterology and Hepatology, National Hospital Organization Numata National Hospital, Gunma, - - 2014
Recently reported normal values for esophageal motility obtained by high-resolution manometry (HRM) using a system with a Unisensor catheter were significantly different from those obtained by the ManoScan(®) , which could result in a wrong diagnosis. To clarify whether these differences were due to system or subject differences, we compared ...
Donazzan Luca L Department of Cardiology, San Maurizio Regional Hospital, Bolzano, - - 2014
Systemic hypertension (HT) is a major long-term complication even after successful repair of aortic coarctation (CoA), and many factors are involved in this pathophysiology. To investigate the role of abnormalities in the aortic arch shape, central aortic flow dynamics, and distensibility in developing HT after successful repair of CoA. We ...
Ji Fuhai F Department of Anesthesiology and Pain Medicine, University of California Davis Health System, 4150 V Street, Suite 1200, Sacramento, CA, 95817, - - 2014
Phenylephrine is often used to treat intra-operative hypotension. Previous studies have shown that the FloTrac cardiac monitor may overestimate cardiac output (CO) changes following phenylephrine administration. A new algorithm (4th generation) has been developed to improve performance in this setting. We performed a prospective observational study to assess the effects ...
Zhang Shu S Department of Nephrology, The First Affiliated Hospital of Nanjing Medical University , Nanjing , China - - 2014
Abstract Objective: To explore the relationship between ambulatory blood pressure and arterial atherosclerosis and provide simple and easy reference indicators for the prediction, prevention and prognosis of cardiovascular events in end-stage renal disease (ESRD) patients. Method: This prospective study consecutively collected clinical data of 114 ESRD hospitalized patients in the ...
Pan Youlian Y College of Life Science and Bio-Engineering, Beijing University of Technology, Beijing, 100124, - - 2014
This study was designed to investigate the effect of sinotubular junction and sinus diameters on aortic valve closure to prevent the regurgitation of blood from the aorta into the left ventricle during ventricular diastole. The 2-dimensional geometry of a base aortic valve was reconstructed using the geometric constraints and modeling ...
Goubergrits L L Biofluid Mechanics Laboratory, Charité - Universitätsmedizin Berlin, Augustenburger Platz 1, Berlin, 13353, Germany, - - 2014
Pressure drop associated with coarctation of the aorta (CoA) can be successfully treated surgically or by stent placement. However, a decreased life expectancy associated with altered aortic hemodynamics was found in long-term studies. Image-based computational fluid dynamics (CFD) is intended to support particular diagnoses, to help in choosing between treatment ...
Miller Nathaniel R NR Department of Obstetrics and Gynecology, Carl R. Darnall Army Medical Center, Ft. Hood, TX - - 2014
Abstract Objective: Investigate if micronized progesterone (P4) has the ability to attenuate thromboxane mimetic U46619-mediated fetoplacental artery vasoconstriction. Methods: Paired cotyledons obtained from the same placenta of five term subjects were analyzed. The fetal artery and maternal intervillous space of one cotyledon was infused with P4 while another cotyledon was ...
Sanchez-Gonzalez Marcos A MA Family Institute, Florida State University, Tallahassee, Florida, USA; Office of Clinical Research, Larkin Community Hospital, South Miami, Florida, - - 2014
Prior research suggests that negative affectivity (NA) may have a direct adverse effect on coronary circulation, whereas forgiveness may provide cardioprotection. This study examined whether NA and forgiveness were independently related to aortic hemodynamics and the subendocardial viability index (SVI), a marker of coronary perfusion. A sample of 131 adults ...
Bruce Beau B BB Departments of Ophthalmology and Neurology, Emory University, Atlanta, - - 2014
: Measurement of intracranial pressure (ICP) is critical for the evaluation and management of many neurological and neurosurgical conditions. The invasiveness of ICP measurement limits the frequency with which ICP can be evaluated, hampering the clinical care of patients with ICP disorders. Thus, there has been substantial interest in developing ...
Avery Robert A RA Departments of Neurology, Ophthalmology, Pediatrics, The Gilbert Family Neurofibromatosis Institute, Center for Neuroscience and Behavior (RAA), Children's National Health System, Washington, District of - - 2014
Understanding the reference range of cerebrospinal fluid opening pressure (CSFOP) in children is essential to the diagnosis of elevated intracranial pressure. Recent studies have highlighted several clinical elements that need to be considered when interpreting CSFOP measures. This review and recommendations are based on peer-reviewed literature, primarily from the past ...
Lee Sarah C M SC Department of Neurology (SCML, CJL), The Canberra Hospital, Canberra, Australia; Department of Neuroscience (SCML), Box Hill Hospital, Box Hill, Australia; and Australian National University Medical School (CJL), Canberra, - - 2014
Lumbar puncture (LP) is a widely-used investigative procedure. It allows relatively non-invasive measurement of intracranial pressure (ICP) which may have a significant impact on diagnosis and/or patient management. Over the years there has been considerable discussion about various aspects of the procedure, including what constitutes a normal opening pressure, what ...
Hazenfield Kurtis M KM Department of Small Animal Surgery, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO - - 2014
Objective-To compare in vitro security of 6 friction knots used as a first throw in the creation of a vascular ligation. Design-Experimental study. Sample-20 constructs of 6 friction knots created with 2-0 polyglyconate suture. Procedures-Security of the surgeon's throw, Miller's knot, Ashley modification of the Miller's knot, modified Miller's hand-tie, ...
Riesenkampff Eugénie E German Heart Institute Berlin, Unit of Cardiovascular Imaging, Department of Congenital Heart Disease and Pediatric Cardiology, Berlin, - - 2014
This study compared pressure fields by 4-dimensional (4D), velocity-encoded cine (VEC) cardiac magnetic resonance imaging (CMR) with pressures measured by the clinical gold standard catheterization. Thirteen patients (n = 7 male, n = 6 female) with coarctation were studied. The 4D-VEC-CMR pressure fields were computed by solving the Pressure-Poisson equation. The agreement ...
Pecha Simon S Department of Cardiovascular Surgery, University Heart Center, University Hospital Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany, - - 2014
Vascular reflex mechanisms contribute to vasovagal syncope. However, the alterations in central haemodynamics in patients with vasovagal syncope are unknown. 30 consecutive patients (36.5 ± 15 years, 14 females) with recurrent vasovagal syncope (VVS) and a positive tilt table test were compared to 39 age- and sex-matched controls (36.9 ± 16 years, 15 females) with a ...
Pereira Tânia T Instrumentation Center, Physics Department, University of Coimbra, Coimbra, Portugal. Electronic address: - - 2014
The pulse pressure waveform has, for long, been known as a fundamental biomedical signal and its analysis is recognized as a non-invasive, simple, and resourceful technique for the assessment of arterial vessels condition observed in several diseases. In the current paper, waveforms from non-invasive optical probe that measures carotid artery ...
Schmidt Frank F 2 Medical Clinic, Cardiology, University Medical Center Mainz, Johannes Gutenberg University, Langenbeckstrasse 1, 55131, Mainz, - - 2014
Epidemiological studies suggest the existence of a relationship between aircraft noise exposure and increased risk for myocardial infarction and stroke. Patients with established coronary artery disease and endothelial dysfunction are known to have more future cardiovascular events. We therefore tested the effects of nocturnal aircraft noise on endothelial function in ...
Ribeiro Fernando F School of Health Sciences, University of Aveiro, Aveiro, Portugal; Research Centre in Physical Activity, Health and Leisure (CIAFEL), Faculty of Sport, University of Porto, Porto, Portugal. Electronic address: - - 2014
The study examined the effects of treadmill walking with load carriage on derived measures of central pressure and augmentation index in young healthy subjects. Fourteen male subjects (age 31.0 ± 1.0 years) volunteered in this study. Subjects walked 10 minutes on a treadmill at a speed of 5 km/h carrying ...
Kandail Harkamaljot H Department of Chemical Engineering, Imperial College London, South Kensington Campus, London, - - 2014
Treatment options for abdominal aortic aneurysm (AAA) include highly invasive open surgical repair or minimally invasive endovascular aneurysm repair (EVAR). Despite being minimally invasive, some patients are not suitable for EVAR due to hostile AAA morphology. Fenestrated-EVAR (F-EVAR) was introduced to address these limitations of standard EVAR, where AAA is ...
Tan Long Bin LB Department of Mechanical Engineering, National University of Singapore, - - 2014
Head injuries due to complex blasts are not well examined due to limited published articles on the subject. Previous studies have analyzed head injuries due to impact from a single planar blast wave. Complex or concomitant blasts refer to impacts usually caused by more than a single blast source, whereby ...
Childs Charmaine C Centre for Health and Social Care Research, Sheffield Hallam University, Montgomery House , 32 Collegiate Crescent , Sheffield S10 2BP - - 2014
Abstract The objective was to investigate sensor measurement uncertainty for intracerebral probes inserted during neurosurgery and remaining in situ during neurocritical care. This describes a prospective observational study of two sensor types and including performance of the complete sensor-bedside monitoring and readout system. Sensors from 16 patients with severe traumatic ...
Iwai Kosuke K Department of Mechanical Engineering, University of California, Berkeley, USA. - - 2014
Point-of-care (POC) and disposable biomedical applications demand low-power microfluidic systems with pumping components that provide controlled pressure sources. Unfortunately, external pumps have hindered the implementation of such microfluidic systems due to limitations associated with portability and power requirements. Here, we propose and demonstrate a 'finger-powered' integrated pumping system as a ...
Gao Ji J *Laboratory of Central Neuropeptides in the Regulation of Body Fluid Homeostasis and Cardiovascular Functions, CIRB, Collège de France, INSERM U1050, Paris, F-75231, - - 2014
Hypertension affects one-third of the adult population and is a growing problem due to the increasing incidence of obesity and diabetes. Brain RAS (renin-angiotensin system) hyperactivity has been implicated in the development and maintenance of hypertension in several types of experimental and genetic hypertension animal models. We have identified in the ...
Hay Meredith M Department of Physiology, University of Arizona, 1501 N Campbell Rd Bldg 201, Rm 4103, Tucson, AZ, 85724, USA, - - 2014
The role of the brain in hypertension between the sexes is known to be important especially with regards to the effects of circulating sex hormones. A number of different brain regions important for regulation of sympathetic outflow and blood pressure express estrogen receptors (ERα and ERβ). Estradiol, acting predominantly via ...
Khalifé Maya M Imagerie par Résonance Magnétique Médicale et Multi-Modalités (IR4M), Université Paris-Sud - CNRS, UMR 8081, Orsay, France. Electronic address: - - 2014
Aortic blood pressure is a strong indicator to cardiovascular diseases and morbidity. Clinically, pressure measurements are done by inserting a catheter in the aorta. However, imaging techniques have been used to avoid the invasive procedure of catheterization. In this paper, we combined MRI measurements to a one-dimensional model in order ...
Xu Gang-Zhu GZ From the *Department of Neurosurgery, First Affiliated Hospital, Medical College of Xi'an Jiaotong University; and †Department of Neurosurgery, Affiliated Hospital of Xi'an Medical College, Xi'an, - - 2014
This study was performed to investigate the effect of early pressure dressing on the prevention of postoperative subdural effusion secondary to decompressive craniectomy (DC) in patients with severe traumatic brain injury (STBI). Patients with STBI who had undergone DC for refractory increased intracranial pressure between January 2008 and December 2011 ...
Srivastava Divya D Theoretical Sciences Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bengaluru - 560064, - - 2014
First principles searches are carried out for the existence of an asymptotic scaling law for the zero temperature phonon dispersion relation of several elemental crystalline solids in the high pressure regime. The solids studied are Cu, Ni, Pd, Au, Al, and Ir in the face-centered-cubic (fcc) geometry and Fe, Re, ...
Koskinen Lars-Owe D LO Division of Pharmacology and Clinical Neuroscience, Department of Neurosurgery, Umeå University, 901 85, Umeå, Sweden, - - 2014
This prospective consecutive double-blinded randomized study investigated the effect of prostacyclin on pressure reactivity (PR) in severe traumatic brain injured patients. Other aims were to describe PR over time and its relation to outcome. Blunt head trauma patients, Glasgow coma scale ≤8, age 15-70 years were included and randomized to prostacyclin ...
Eide Per Kristian - - 2014
In order to characterize the intracranial pressure-volume reserve capacity, the correlation coefficient (R) between the ICP wave amplitude (A) and the mean ICP level (P), the RAP index, has been used to improve the diagnostic value of ICP monitoring. Baseline pressure errors (BPEs), caused by spontaneous shifts or drifts in ...
Chesnut Randall M RM Departments of Neurological Surgery and Orthopaedics and Sports Medicine, Harborview Medical Center, School of Medicine, and School of Global Health, University of Washington, Seattle, - - 2014
Current controversies in the literature suggest that a reassessment of the current management of severe traumatic brain injury (sTBI) is necessary. This article presents a conceptual framework toward individualizing sTBI treatment with respect to targeting thresholds and strategies on the basis of known physiologic processes and available monitors. Intracranial pressure ...
Lazaridis Christos C Division of Neurocritical Care, Department of Neurology, Baylor College of Medicine, 6501 Fannin Street, MS: NB 320, Houston, TX, 77030, USA, - - 2014
Prevention and detection of secondary brain insults via multimodality neuromonitoring is a major goal in patients with severe traumatic brain injury (TBI). Explore the underlying pathophysiology and clinical outcome correlates as it pertains to combined monitoring of ≥2 from the following variables: partial brain tissue oxygen tension (PbtO2), pressure reactivity ...
Roth Christian C Department of Neurology, Klinikum Kassel, Mönchebergstraße 41-43, 34125, Kassel, Germany, - - 2014
The objective of our trial was to obtain more comprehensive data on the risks and benefits of kinetic therapy in intensive care patients with intracerebral pathology. Standardized data of prone positioning in our NeuroIntensive Care Unit were collected from 2007 onward. A post hoc analysis of all available data was ...
Colton Katharine K From the Shock Trauma Anesthesia Research Organized Research Center (K.C., S.Y., P.F.H., H.H.C., B.B., T.M.S., D.M.S.), University of Maryland School of Medicine; and R Adams Cowley Shock Trauma Center (K.C., S.Y., P.F.H., H.H.C., B.B., T.M.S., D.M.S.), Baltimore, Maryland; and Duke University School of Medicine (K.C.), Durham, North - - 2014
The accepted treatment of increased intracranial pressure (ICP) in patients experiencing severe traumatic brain injury is multimodal and algorithmic, obscuring individual effects of treatment. Using continuous vital signs monitoring, we sought to measure treatment effect and ascertain the accuracy of manual data recording. Patients older than 17 years, admitted and ...
Panikkath Ragesh R Departments of Internal Medicine (Panikkath, Lado-Abeal) and Anesthesiology (Welker, Johnston), Texas Tech University Health Sciences Center, Lubbock, - - 2014
Intracranial hypertension and intracranial hypotension are on the opposite end of the intracranial pressure spectra. It is extremely uncommon for both to cause headache in the same patient within a span of several days. This report describes a young man with intracranial hypertension who developed a severe excruciating headache due ...
Sun Qing - - 2014
Mechanical ventilation with positive end-expiratory pressure (PEEP) has been advocated as an essential life support for critical patients. However, its side effect, which is demonstrated by an elevation of intracranial pressure (ICP) under normobaric (NBO2) conditions, is potentially detrimental to patients. Hyperbaric oxygen (HBO2) therapy, on the other hand, is ...
Kundra Sandeep S Department of Anesthesia, Dayanand Medical College and Hospital, Ludhiana, Punjab, - - 2014
Aneurysmal subarachnoid hemorrhage is associated with high mortality. Understanding of the underlying pathophysiology is important as early intervention can improve outcome. Increasing age, altered sensorium and poor Hunt and Hess grade are independent predictors of adverse outcome. Early operative interventions imposes an onus on anesthesiologists to provide brain relaxation. Coiling ...
Takimoto Yoshiyuki Y Department of Stress Sciences and Psychosomatic Medicine, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, - - 2014
Autonomic dysfunction of the cardiovascular system in anorexia nervosa (AN) was reported not only in the rest position, but also in the standing position in some previous studies, which might contribute to cardiac complications such as lethal arrhythmia. However, there has not been sufficient literature in this issue. Therefore, we ...
Jian M M Department of Anaesthesiology, Beijing Tiantan Hospital, Capital Medical University, No. 6 Tiantan Xili, Beijing 100050, - - 2014
Post-craniotomy intracranial haematoma is one of the most serious complications after neurosurgery. We examined whether post-craniotomy intracranial haematoma requiring surgery is associated with the non-steroidal anti-inflammatory drugs flurbiprofen, hypertension, or hydroxyethyl starch (HES). A case-control study was conducted among 42 359 patients who underwent elective craniotomy procedures at Beijing Tiantan ...
Dias Celeste C University Hospital Sao Joao, Neurocritical Care Unit, Intensive Care Department, Porto, Portugal ; - - 2014
Emerging evidence suggests that hypertonic saline (HTS) is efficient in decreasing intracranial pressure (ICP). However there is no consensus about its interaction with brain hemodynamics and oxygenation. In this study we investigated brain response to HTS bolus with multimodal monitoring after severe Traumatic Brain Injury (TBI). We included 18 consecutive ...
Zhang Shuijun S From the Department of Hepatobiliary and Pancreatic Surgery and the Key Laboratory of Hepatobiliary and Pancreatic Surgery & Digestive Organ Transplantation of Henan Province, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, - - 2014
Experimental animal models of brain death that mimic human conditions may be useful for investigating novel strategies that increase quality and quantity of organs for transplant. Brain death was induced by increasing intracranial pressure by inflating an intracranial placed balloon catheter. Brain death was confirmed by flatline electroencephalogram, physical signs ...
Zeiler Frederick A FA Section of Neurosurgery, Dept of Surgery, University of Manitoba, Winnipeg, Canada; Section of Neurocritical Care, Montreal Neurological Institute, McGill, Montreal, Canada. Electronic address: - - 2014
The purpose of the study was to perform a systematic review of the literature on the use of ketamine in nontraumatic neurological illness and its effects on intracranial pressure (ICP). Articles from MEDLINE, BIOSIS, EMBASE, Global Health, HealthStar, Scopus, Cochrane Library, the International Clinical Trials Registry Platform (inception to January ...
Eide Per Kristian PK Department of Neurosurgery, Oslo University Hospital - Rikshospitalet, Oslo, Norway; Faculty of Medicine, University of Oslo, Oslo, Norway. Electronic address: - - 2014
Antisecretory factor (AF) and derivates thereof counteract brain edema and inflammation, and normalize ICP dynamics. The aim of the present study was to assess whether AF normalized the abnormal ICP waves, indicative of impaired intracranial compliance, seen in patients with idiopathic normal pressure hydrocephalus (iNPH) and idiopathic intracranial hypertension (IIH). ...
Corry Jesse J JJ Department of Neurology, Marshfield Clinic, 1000 N. Oak Ave., Marshfield, WI, 54449-5777, USA, - - 2014
The use of hypothermia for treatment of intracranial hypertension is controversial, despite no other medical therapy demonstrating consistent improvements in morbidity or mortality. Much of this may be the result of negative results from randomized controlled trials. However, the patients selected for these trials may have obscured the results in ...
Wilson Mark H MH 1 The Brain Injury Centre-St Mary's Hospital , Imperial College, London, United Kingdom - - 2014
Abstract Wilson, Mark H., Alex Wright, and Christopher H.E. Imray. Intracranial pressure at altitude. High Alt Med Biol. 15:123-132, 2014.- Rapid ascent to high altitude can result in high altitude headache, acute mountain sickness, and less commonly, high altitude cerebral or pulmonary edema. The exact mechanisms by which these clinical ...
Lewis Philip M PM Department of Neurosurgery, Alfred Hospital, 1st Floor, Old Baker Building, Commercial Road, Melbourne, VIC, 3003, Australia, - - 2014
In the healthy brain, small oscillations in intracranial pressure (ICP) occur synchronously with those in cerebral blood volume (CBV), cerebrovascular resistance, and consequently cerebral blood flow velocity (CBFV). Previous work has shown that the usual synchrony between ICP and CBFV is lost during intracranial hypertension. Moreover, a continuously computed measure ...
Kliper Yael Y Baruch Padeh Medical Center, Poria, Affiliated to the Faculty of Medicine, Bar-Ilan University, Ramat-Gan, - - 2014
Introduction: The aim of this study was to assess the effect of mild pressure applied on the abdominal wall by the ultrasound transducer on fetal cephalic indices. Material and Methods: We examined by ultrasound 60 fetuses of healthy women, at 20-24 weeks of pregnancy, during routine prenatal evaluation. For every ...
Bershad Eric M EM 1Baylor College of Medicine, Department of Neurology, Houston, TX, USA 2Smith College, Department of Engineering, Northampton, MA, USA 3Amherst College, Department of Mathematics and Statistics, Amherst, MA, - - 2014
There is an important need to develop a non-invasive method for assessing intracranial pressure. We report a novel approach for monitoring intracranial pressure using cochlear derived distortion product otoacoustic emissions, which are affected by intracranial pressure. We hypothesized that changes of intracranial pressure may be reflected by altered DPOAE responses ...
Wang Xin X Department of Anesthesiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, 301 Yanchang zhong Road, Shanghai, 200072, - - 2014
Ketamine is traditionally avoided in sedation management of patients with risk of intracranial hypertension. However, results from many clinical trials contradict this concern. We critically analyzed the published data of the effects of ketamine on intracranial pressure (ICP) and other cerebral hemodynamics to determine whether ketamine was safe for patients ...
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