Factors affecting mortality and reoperations in high-energy pelvic fractures

A new method of removing waste chips is proposed by focusing on the key factors affecting the processing quality and efficiency of high energy beams. Firstly, a mathematical model has been established to provide the theoretical basis for the separation of solid–liquid suspension under ultrasonic standing wave. Secondly, the distribution of sound field with and without droplet has been simulated. Thirdly, the deformation and movement of droplets are simulated and tested. It is found that the sound pressure around the droplet is greater than the sound pressure in the droplet, which can promote the separation of droplets and provide theoretical support for the ultrasonic suspension separation of droplet; under the interaction of acoustic radiation force, surface tension, adhesion, and static pressure, the droplet is deformed so that the gas fluid around the droplet is concentrated in the center to achieve droplet separation, and the droplet just as a flat ball with a central sag is stably suspended in the acoustic wave node.

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Angiography in patients with pelvic fractures and contrast extravasation on CT following high-energy trauma

European Journal of Trauma and Emergency Surgery ◽

10.1007/s00068-021-01628-w ◽

2021 ◽

Author(s):

Jonathan Hammerschlag ◽

Yehuda Hershkovitz ◽

Itamar Ashkenazi ◽

Zahar Shapira ◽

Igor Jeroukhimov

Keyword(s):

High Energy ◽

Pelvic Fractures ◽

Contrast Extravasation ◽

High Energy Trauma

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Pelvic Fractures: An Analysis of Factors Affecting Prehospital Triage and Patient Outcome

Southern Medical Journal ◽

10.1097/00007611-199007000-00017 ◽

1990 ◽

Vol 83 (7) ◽

pp. 785-788 ◽

Cited By ~ 25

Author(s):

MARK A. FOX ◽

EUGENE C. MANGIANTE ◽

TIMOTHY C. FABIAN ◽

GUY R. VOELLER ◽

KENNETH A. KUDSK

Keyword(s):

Patient Outcome ◽

Pelvic Fractures ◽

Factors Affecting ◽

Prehospital Triage

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Radiocarbon Dating of Holocene Calcareous Tufa in Southern Poland

Radiocarbon ◽

10.1017/s0033822200044076 ◽

1988 ◽

Vol 30 (2) ◽

pp. 133-152 ◽

Cited By ~ 28

Author(s):

Anna Pazdur ◽

Mieczysław F Pazdur ◽

Joachim Szulc

Keyword(s):

High Energy ◽

Clear Correlation ◽

Carbonate Sediments ◽

Radiocarbon Dates ◽

Factors Affecting ◽

Southern Poland ◽

Calcareous Tufa ◽

Organic Fractions ◽

Apparent Age

Calcareous tufa from five sites in southern Poland, representing several most typical conditions of tufa sedimentation, were chosen for 14C, 13C, and 18O measurements. These tufas were deposited in a high-energy turbulent stream (the Racławka site), in streams with moderate but variable flow (Rzerzuśnia and Trzebienice), and in semilimnic conditions (Sieradowice site). Sediments of the Gliczarów site represent spring travertines. In all but the latter site, direct comparison of 14C dates of carbonate and organic fractions was possible, leading to an estimate of initial apparent age of carbonate sediments. Clear correlation was found between the value of initial apparent age of tufas and the hydrodynamic conditions of sedimentation. Corresponding values range from ca 3900 yr (Racławka) to 910 yr for semilimnic sediments (Sieradowice). Intermediate, almost identical values, equal to 2460 ± 200 yr and 2100 ± 160 yr, were obtained for tufas from Rzerzuśnia and Trzebienice, respectively. Detailed sedimentologic classification of tufaceous deposits is presented and some primary and secondary factors affecting the accuracy of radiocarbon dates of various types of tufas are also discussed.

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Workshop no. 1. Alternate metabolic pathways in protozoan energy metabolism

Parasitology ◽

10.1017/s0031182000150073 ◽

1981 ◽

Vol 82 (4) ◽

pp. 1-30 ◽

Cited By ~ 4

Keyword(s):

Energy Metabolism ◽

Metabolic Pathways ◽

Functional Role ◽

High Energy ◽

Strictly Anaerobic ◽

Factors Affecting ◽

Subcellular Compartmentation ◽

Similarities And Differences ◽

Metabolic Behaviour

The purpose of this workshop was to collect together colleagues investigating the intermediary metabolism of protozoa, with a view to discussing those pathways involved in energy metabolism and the production of ATP and other high-energy compounds, together with the factors affecting energy balance. The aspects of energy metabolism chosen for discussion comprised the metabolic pathways ranging from the strictly anaerobic to highly oxidative; subcellular compartmentation of these pathways within the protozoa; the functional role of these pathways including a consideration of aero-tolerance; and the use of inhibitors as biochemical probes and potential chemotherapeuticagents. Hopefully this approach has produced a broad 'over-view' of important areas of protozoan energy metabolism which will enable both the specialist and non-specialist to appreciate the similarities and differences between the metabolic behaviour of a range of protozoa.

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Methods for Improvement of the Thermal Efficiency during Spray Drying

E3S Web of Conferences ◽

10.1051/e3sconf/20185301031 ◽

2018 ◽

Vol 53 ◽

pp. 01031 ◽

Cited By ~ 1

Author(s):

Fangyuan Cheng ◽

Xueyong Zhou ◽

Yanmei Liu

Keyword(s):

Spray Drying ◽

Thermal Efficiency ◽

High Energy ◽

Point Of View ◽

Low Energy ◽

Energy Utilization ◽

Spray Dryer ◽

Unit Operation ◽

Factors Affecting ◽

High Energy Consumption

Spray drying is a kind of unit operation with high energy consumption and relatively low energy utilization, and the problem of low thermal efficiency has been attracted the attention by scholars at home and abroad. The factors affecting the thermal efficiency of spray dryer are analyzed. From a technical point of view, the thermal efficiency of spray dryer can be increased through the unit operation. Measurements for the reduction of energy saving of spray dryer were put forward.

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Acetate-induced depression of electrical and contractile activity in normoxic and hypoxic guinea pig papillary muscle

Canadian Journal of Physiology and Pharmacology ◽

10.1139/y89-118 ◽

1989 ◽

Vol 67 (7) ◽

pp. 734-739

Author(s):

Hideharu Hayashi ◽

Hajime Terada ◽

Alexander Kholopov ◽

Terence F. McDonald

Keyword(s):

Guinea Pig ◽

Action Potential ◽

Action Potential Duration ◽

Contractile Activity ◽

High Energy ◽

Factors Affecting ◽

Resting Tension ◽

Tension Increase ◽

Action Potential Shortening ◽

Action Potential Configuration

The action potential configuration, developed tension, and resting tension were monitored in normoxic and hypoxic guinea pig papillary muscles superfused with solutions containing no substrate, glucose, or acetate (1–10 mM). In normoxic muscle, acetate provoked a concentration-dependent transient depression of the action potential duration and force of contraction, depression was maximal after 10–30 min, and recovery was complete after 90–120 min. In hypoxic muscle, acetate accelerated functional rundown (action potential shortening, decline of developed tension, increase in resting tension). Because rundown in hypoxic muscle was sensitive to factors affecting glycolysis (moderated by external glucose; accentuated by 2-deoxyglucose), the accentuated rundown with acetate may be accounted for by a partial block of glycolysis. However, block of glycolysis cannot explain the acetate-induced transient depression in normoxic muscle, since the depression was enhanced in normoxic muscle with 2-deoxyglucose-blocked glycolysis. We suggest that the transient depression is due to a transient depression of high energy nucleotides with consequent effects on ionic currents.Key words: acetate, action potential duration, 2-deoxyglucose, hypoxia, ATP.

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(ii) Management of high-energy pelvic fractures

Current Orthopaedics ◽

10.1016/s0268-0890(03)00108-7 ◽

2003 ◽

Vol 17 (5) ◽

pp. 335-345 ◽

Cited By ~ 3

Author(s):

David J.G Stephen

Keyword(s):

High Energy ◽

Pelvic Fractures

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Pre-hospital and emergency department management of pelvic fractures and major trauma centre status: Has practice changed?

Trauma ◽

10.1177/1460408616677562 ◽

2016 ◽

Vol 19 (3) ◽

pp. 207-211

Author(s):

Jonathan Barnes ◽

Philip Thomas ◽

Ramsay Refaie ◽

Andrew Gray

Keyword(s):

Emergency Department ◽

Clinical Practice ◽

Pelvic Fracture ◽

Major Trauma ◽

High Energy ◽

Trauma Centre ◽

Pelvic Fractures ◽

Major Trauma Centre ◽

Initial Imaging ◽

One Year

Introduction Pelvic fractures are indicative of high-energy injuries and carry a significant morbidity and mortality and pelvic binders are used to stabilise them in both the pre-hospital and emergency department setting. Our unit gained major trauma centre status in April 2012 as part of a national programme to centralise trauma care and improve outcomes. This study investigated whether major trauma centre status led to a change in workload and clinical practice at our centre. Methods A retrospective analysis of all patients admitted with a pelvic fracture for the six-month periods before, after and at one-year following major trauma centre status designation. Data were retrospectively collected from electronic patient records and binder placement assessed using an accepted method. Patients with isolated pubic rami fractures were excluded. Results Overall, 6/16 (37.5%) pelvic fracture admissions had a binder placed pre-major trauma centre status, rising to 14/34 (41.2%) immediately post-major trauma centre status and 22/32 (68.8%) ( p = 0.025) one year later. Binders were positioned accurately in 4 patients (80%, one exclusion) pre-major trauma centre status, 12 (92.4%) post-major trauma centre status and 22 (100%) at one year. CT imaging was the initial imaging used in 9 (56.3%) patients pre-major trauma centre status, 29 (85.3%) ( p = 0.04) post-major trauma centre status and 27 (84.4%) at one year. Discussion Pelvic fracture admissions doubled following major trauma centre status. Computed tomography, as the initial imaging modality, increased significantly with major trauma centre status, likely a reflection of the increased resources made available with this change. Although binder application rates did not change immediately, a significant improvement was seen after one year, with binder accuracy increasing to 100%. This suggests that although changes in clinical practice often do not occur immediately, with the increased infrastructure and clinical exposure afforded through centralisation of trauma services, they will occur, ultimately leading to improvements in trauma patient care.

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A Delayed and Rather Unusual Presentation of a Bladder Injury after Pelvic Trauma: 5 Years after a Road Traffic Accident

Case Reports in Orthopedics ◽

10.1155/2014/873079 ◽

2014 ◽

Vol 2014 ◽

pp. 1-3 ◽

Cited By ~ 1

Author(s):

Nikolaos Davarinos ◽

John Thornhill ◽

JP McElwain ◽

David Moore

Keyword(s):

Traffic Accident ◽

Road Traffic ◽

High Energy ◽

Pelvic Trauma ◽

Careful Consideration ◽

Pelvic Fractures ◽

Unusual Presentation ◽

Systematic Evaluation ◽

Bladder Injury ◽

Associated Injuries

Associated injuries frequently occur in patients who sustain fractures of the pelvis. Specifically, high-energy trauma resulting in pelvic fractures places the bladder and urethra at risk for injury, often resulting in significant complications. Timely identification and management of genitourinary injuries minimize associated morbidity. Prompt injury identification depends upon a systematic evaluation with careful consideration of the mechanism of injury. Physical examination is pertinent as well as analysis of the urine and appropriate diagnostic imaging. Despite such increased vigilance genitourinary injuries get missed and delayed presentations in the order of a few weeks have been well documented. To our knowledge, this is the first report of its kind in the literature showing such a particularly delayed (5 years) and rather unusual presentation of a bladder injury after pelvic trauma.

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