What is surgical diathermy?
Surgical diathermy is the passage of a high-frequency alternating current through the body to produce a desirable surgical effect. Diathermy involves the deliberate use of electrical energy to produce tissue damage and despite the incorporation of various safety measures, injury to patients still occurs.
What does diathermy mean?
Diathermy is a therapeutic treatment most commonly prescribed for muscle and joint conditions. It uses a high-frequency electric current to stimulate heat generation within body tissues. The heat can help with various processes, including: increasing blood flow. relieving pain.
What precautions is used in diathermy?
Simple precautions such as monitoring the application and removal of the diathermy pad are not performed by the operating surgeon. Furthermore, most surgeons increase the frequency of the diathermy current if there is an inappropriate effect rather than check the pad placement.
Is diathermy the same as cautery?
Diathermy is produced by rotation of molecular dipoles in high frequency alternating electric field – the effect produced by a microwave oven. The term electrocautery is most often used in reference to a device in which a direct current is used to heat the cautery probe.
How does diathermy work in surgery?
Diathermy is the use of high frequency alternate polarity radio-wave electrical current to cut or coagulate tissue during surgery . It allows for precise incisions to be made with limited blood loss and is now used in nearly all surgical disciplines.
Is diathermy the same as laser?
Diathermy devices produce electromagnetic waves from either the shortwave or microwave frequency ranges. Lasers produce electromagnetic waves from the visible light frequency range. Much higher frequencies are used to produce ultraviolet light and x-rays for diagnostic purposes.
What is the purpose of diathermy?
Diathermy is the controlled production of “deep heating” beneath the skin in the subcutaneous tissues, deep muscles and joints for therapeutic purposes . There are basically two types of diathermy devices on the market today: radio or high frequency and microwave.
Can diathermy cause burns?
Although most of the newest diathermy machines are largely safe, the electric fields they generate are still inherently hazardous for the patient, operating surgeons, and theatre staff. They can cause burn injury, electrocution, operating room fire, smoke inhalation, and gene mutation.
How does ultrasound relieve pain?
Mechanical ultrasound therapy uses pulses of sound waves to penetrate tissues. While this still has a minor warming effect, it also causes expansion and contraction in tiny gas bubbles in soft tissues. This decreases the inflammatory response, which reduces swelling and decreases pain .
Is shortwave diathermy harmful?
Exposure to RF radiation can result in effects that are benign, beneficial (e.g., short-wave diathermy treatment) or potentially harmful .
Where should a grounding pad be placed?
To reduce the risk of this complication, grounding pads should ideally be positioned over dry, shaven and well-vascularized tissue surfaces, to maximize the contact area of the return electrode and reduce the heat of the underlying tissues.
What is the frequency range of sound used for ultrasound diathermy?
Basic principles: the ultrasound waves used in ultrasound therapy represent mechanical oscillation of a frequency of 800 kHz–1 MHz.
Is cauterization a surgery?
Nasal cautery is a type of surgery (operation) to treat nose bleeds. It involves using electricity to seal blood vessels in the nose that bleed regularly.
Why is cautery used in surgery?
Electrocauterization (or electrocautery ) is often used in surgery to remove unwanted or harmful tissue. It can also be used to burn and seal blood vessels. This helps reduce or stop bleeding during surgery or after an injury. It is a safe procedure .
What is a bipolar cautery?
Cauterization using a high frequency electrical current passed through tissue from one electrode to another.