نتایج جستجو برای: external radial pressure

تعداد نتایج: 644055  

Journal: :Nuclear Fusion 2021

A new equilibrium pressure profile extending the Rigid-Rotor (RR) model with a simple unified expression $P=P(\psi;\beta_{s},\alpha, \sigma)$ for both inside and outside separatrix is proposed, in which radial normalized field-reversed configuration (FRC) profiles pressure, magnetic field, current can be determined by only two dimensionless parameters $\beta_s\equiv P_s/2\mu_0B_e^2$ $\delta_s\e...

Journal: :Chest 1987
S Aronson W A Neff S Slogoff A S Keats

The possibility that venous blood could be withdrawn through a radial artery cannula when venous pressure is high was examined in 30 patients during cardiopulmonary bypass for coronary artery bypass operation. Progressive desaturation of radial artery blood occurred when venous pressure was equal to arterial pressure. Desaturation not only increased with duration of venous obstruction but also ...

Journal: :Injury 2011
Konstantinos T Ditsios Stavros I Stavridis Anastasios G Christodoulou

BACKGROUND The aspiration of the accompanying haematoma by Mason type I radial head fractures is advocated by several authors to achieve an analgesic effect. The purpose of this study was to investigate the effect of haematoma aspiration on intra-articular pressure and on pain relief after Mason I radial head fractures. MATERIALS AND METHODS A total of 16 patients (10 men and six women, age 2...

Journal: :the archives of bone and joint surgery 0
valentin neuhaus orthopaedic hand and upper extremity service, yawkey center, suite 2100, massachusetts general hospital, 55 fruit street, boston, ma 02114, usa dimitrios c. christoforou orthopaedic hand and upper extremity service, yawkey center, suite 2100, massachusetts general hospital, 55 fruit street, boston, ma 02114, usa amir reza kachooei orthopedic research center, mashhad university of medical sciences, mashhad, iran jesse b. jupiter orthopaedic hand and upper extremity service, yawkey center, suite 2100, massachusetts general hospital, 55 fruit street, boston, ma 02114, usa david c. ring orthopaedic hand and upper extremity service, yawkey center, suite 2100, massachusetts general hospital, 55 fruit street, boston, ma 02114, usa chaitanya s. mudgal department of orthopedic surgery, massachusetts general hospital, 55 fruit street, boston, ma, 02114 usa.

background:  the purpose of this study was to report the preoperative complaints and postoperative outcome of patients after removal of the radial head prosthesis.   methods:  this is a retrospective review of 14 adult patients (6 females and 8 males) from 2007 to 2011, who underwent radial head prosthesis removal by three surgeons. the average time between implantation and removal was 23 month...

2010
Nicholas Olson Jason P Brown Andrew M Kahn William R Auger Michael M Madani Thomas J Waltman Daniel G Blanchard

BACKGROUND Echocardiographic evaluation of left ventricular (LV) strain and strain rate (SR) by 2D speckle tracking may be useful tools to assess chronic thromboembolic pulmonary hypertension (CTEPH) severity as well as response to successful pulmonary thromboendarterectomy (PTE). METHODS We evaluated 30 patients with CTEPH before and after PTE using 2D speckle tracking measurements of LV rad...

Journal: :Hypertension 2012
Henry Fok Benyu Jiang Brian Clapp Phil Chowienczyk

Arterial tone in muscular conduit arteries may influence pressure wave reflection through changes in diameter and pulse wave velocity. We examined the relative specificity of vasodilator drugs for radial artery and forearm resistance vessels during intrabrachial arterial infusion. The nitric oxide (NO) donors, nitroglycerine and nitroprusside, and brain natriuretic peptide were compared with th...

Journal: :Cerebral cortex 2011
Emi Takahashi Guangping Dai Glenn D Rosen Ruopeng Wang Kenichi Ohki Rebecca D Folkerth Albert M Galaburda Van J Wedeen P Ellen Grant

The immature cortex (cortical plate [CP]) and underlying subplate (SP), a transient cell layer just below the CP, play critical roles in the formation of intracerebral connections. The purpose of this study was to examine the diffusion characteristics of the developing cortex and subcortical structures and compare to histology. We obtained high-resolution diffusion spectrum images of postnatal ...

2010
S. Braun P. Helander

The Pfirsch-Schlüter transport of impurities is calculated for stellarator geometry. Contrary to the tokamak case, where the only contribution to the particle flux arises from friction between different species, in a stellarator there is another source of impurity transport due to pressure anisotropy. However, the pressure anisotropy term is usually smaller than the friction term, so that the i...

Journal: :Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions 2008
Samir Pancholy John Coppola Tejas Patel Marie Roke-Thomas

OBJECTIVE The objective of this study was to evaluate the efficacy of hemostasis with patency in avoiding radial artery occlusion after transradial catheterization. BACKGROUND Radial artery occlusion is an infrequent but discouraging complication of transradial access. It is related to factors such as sheath to artery ratio and is less common in patients receiving heparin. Despite being clini...

2014
Yong Jin Cho Sung Taek Jung

PURPOSE Multiple hereditary exostoses of the forearm typically form in the distal ulna, causing disturbances in the growth of the ulna and functional disability. Multiple hereditary exostoses inhibit the growth of the ulna, leading to an acquisition of a varus deformity in the radius, which sometimes leads to dislocation of the radial head, the development of limitations in the pronation-supina...

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