BACKGROUND Electromagnetic fields used in physiotherapeutic treatment affect not only patients, but also physiotherapists, patients not undergoing treatment and electronic medical equipment. OBJECTIVE The aim of the work was to study the parameters of the electromagnetic fields of physiotherapeutic devices with respect to requirements regarding the protection of electronic devices, including ...

This paper utilizes a statistical approach, the response surface optimization methodology, to determine the optimum conditions for the Acid Black 172 dye removal efficiency from aqueous solution by electrocoagulation. The experimental parameters investigated were initial pH: 4-10; initial dye concentration: 0-600 mg/L; applied current: 0.5-3.5 A and reaction time: 3-15 min. These parameters wer...

Diathermy is used in most theatres for every case but how many people think about the contents of diathermy plume or surgical smoke? Surgical smoke is an unpleasant smell that leaves many considering whether surgical masks reduce the risk of inhaling its contents. This article suggests that practitioners should be more aware of its contents and take action to lessen the risk to themselves and t...

The effect of intraocular diathermy on the closure of intravitreal vessels was studied in a new experimental model and compared with previous studies on argon laser photocoagulation. Intravitreal vessels could be closed easily with diathermy regardless of size or type of vessel. Complete occlusion occurred in 60 per cent of treated vessels and partial occlusion of the vascular tree occurred in ...

this accident. Experiments have shown, however, that halothane of less than 7% concentration in 70% nitrous oxide with 30% oxygen cannot be ignited by a power source of 80-120 J, which is much greater than that used in surgical diathermy (10 J).' The presence of other gases, such as hydrogen and methane, would make an explosion possible. We postulate that fermentation can occur in an obstructed...

OBJECTIVES Recent publications have identified different rates of postoperative hemorrhage between "cold" tonsillectomy techniques and "hot" tonsillectomy techniques, generally identifying lower bleeding rates after cold techniques. Data from a prospective institutional review were analyzed to determine the relative risk factors for post-tonsillectomy hemorrhage among different techniques and b...