Cardiac scoring is a screening method used to detect calcium build-up in the coronary arteries. As a diagnostic tool, the examination can give physicians information that allows assessment of coronary artery disease (arteriosclerosis), which is the narrowing of the arteries that is usually...
Percutaneous lumbar discectomy (PLD) is a minimally invasive procedure for treating patients who suffer from low back and leg pain due to a herniated vertebral disc. Vertebral discs are the cushioning and connecting materials that lie between the vertebrae of the spine. They protect the...
The indications for amputation of part or all of an extremity include: trauma that is beyond repair; tumor of the bone, soft tissue, muscles, blood vessels, or nerves; extensive infection that does not respond to treatment or contributes to septicemia; and a variety of vascular diseases....
The term intravenous (IV) sedation is used to describe the type of anesthesia resulting in the loss of protective reflexes of the patient, but not in unconciousness as with general anesthesia. The purpose of IV sedation is to relax, not to completely anesthetize a patient.
Total parenteral nutrition (TPN) is a complex, expensive, and life-saving therapy used to meet the nutritional needs of patients with a variety of diseases and medical conditions. TPN may be used when a patient has a nonfunctional or inaccessible intestine, or cannot take food by mouth or...
Medical science has developed many procedures to stabilize the spinal column in the lower back and fuse vertebrae. These techniques range from the simplest, lumbar fusion, to the more complex, the use of instrumentation in pedicle screw fixation and Harrington rod placement. Currently, there is...
Discography is an invasive radiographic technique that uses the injection of contrast media to visualize intervertebral disk space. Developed in Sweden in 1948, it soon became widely used to diagnose such diseases or conditions as lumbar degenerative disease, disc herniation, disc protrusion,...
Implanting radioactive seeds (brachytherapy) into the prostate is considered as effective as surgery for men with early stage prostate cancer. Five years after treatment, men who received brachytherapy were as likely to be as disease-free as similar patients who have undergone a radical...
Vascular ultrasound is a noninvasive procedure used to diagnose and locate disorders of the vascular system. Widespread practical application of ultrasonography began in the 1960s. Neurosonography; echocardiography; obstetrical, gynecological, and ophthalmologic ultrasound are additional...
Physicians are now able to open an airway in the trachea by controlled percutaneous introduction of tracheostomy tubes. Elective percutaneous dilatational tracheostomy (PDT) is the gradual dilation of the tracheal entrance site made by sequentially sized dilators being placed over a wire guide,...
