نتایج جستجو برای: thermal burn
تعداد نتایج: 236497 فیلتر نتایج به سال:
Corneal ectasia is a rare complication involving the visual function. The disease starts sometimes insidiously with a long delay before clinical presentation; it is irreversible with pejorative prognosis (it may be an indication for a corneal graft). These characteristics make it a dreaded complication and give it an adverse and pernicious dimension. It can be caused by thermal burn. We report ...
Thermal injury is known to induce alterations in the immune system, but the precise mechanisms have yet to be elucidated. It has been shown that thermal injury in more than 20% of the total body surface area (TBSA) leads to disturbances in the cortisol metabolism and the equilibrium of the hypothalamic-pituitary-adrenal axis. We investigated the temporal relationship between serum cortisol leve...
Severe burn injuries cause functional impairment in distant internal organs. Although this mechanism is not clear, it is possible that free radical toxicity plays an important role. Research in animals and clinical studies have shown that there is a close relationship between a lipid peroxidative reaction and secondary pathological changes following thermal injury. It has been demonstrated that...
We present the fingings in a patient with acute thermal burn to the upper and lower airway who developed mucosal edema followed by patchy areas of granuloma-like lesions in the trachea and bronchi. A four-month follow-up showed resolution of the gross lesions, but functional alterations remained. This patient illustrates the necessity for repeated direct observation and functional evaluation of...
Anomalous reduction of the fusion yields by 50% and anomalous scaling of the burn-averaged ion temperatures with the ion-species fraction has been observed for the first time in D^{3}He-filled shock-driven inertial confinement fusion implosions. Two ion kinetic mechanisms are used to explain the anomalous observations: thermal decoupling of the D and ^{3}He populations and diffusive species sep...
Small, low-thrust, long-burn-time solid propellant rocket motors could provide propulsion for a new class of kilogram-scale, transonic, uncrewed aerial vehicles (UAVs). This paper investigates technological challenges small, low-thrust motors: slow-burn propellants, that have low thrust relative to their size (and thus chamber pressure), thermal protection the motor case, and small nozzles can ...
A computer code ICARUS (Injuries CAused by Radiation Upon the Skin) has been developed for evaluating the time to second degree burn injury from thermal radiation. This paper introduces the modelling methodology incorporated in ICARUS and illustrates the validation of the code. It solves the heat transfer problem associated with simultaneous radiation, conduction and convection within a multila...
Glucocorticoids (GC) are steroid hormones that modulate T cell functions and restrain their hyperresponsiveness following stimulation. Naive T lymphocytes are sensitive to GC but become more resistant when they are activated. A balance between activation and inhibition signals is important for a targeted and effective T cell response. Thermal injury is characterized by an immune dysfunction and...
The combination of skin loss and immune depression after thermal injury predisposes burn patients to an increased risk of infection. Since the commonest site of infection in the burn patient is the burn wound itself, we elected to study the opsonic activity of locally produced blister fluid, from 18 thermally injured patients, for the two most common organisms colonizing the burn wound (Pseudom...
To the Editor-The appropriate review, "Anesthesia for Major Thermal Injury," overstates the contraindication to succinylcholine on pages 754 (". . . succinylcholine . . . >24 h after burn injury is unsafe") and 755 (". . . safe only within 24 h of a burn").' The safe period for burn patients is 6-7 days after a burn injury, whereas that for denervation is 4 days. Studies beginning 6 days after ...
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