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Biomedical subjects

N Shafer

Publications and source records attributed to N Shafer.

At least 19 recordsLinked to original sources

Cafe coronary: recognition, treatment and prevention.

Cafe coronary or foreign body upper airway obstruction claims more than 3,000 deaths each year in the United States. Early recognition of airway obstruction is imperative, because hypoxia of only four to six minutes' duration may result in irreversible brain damage. Fortunately, the foreign body preventing adequate air exchange can often be dislodged and expelled once the correct emergency procedures are implemented. The Heimlich maneuver or external subdiaphragmatic abdominal thrust is recognized as the basic procedure for relief of complete larynx/trachea obstruction. This technique, by elevating the diaphragm, can force a sufficient quantity of air from the lungs to create an artificial cough that is often of adequate force and duration to expel the obstructing foreign body from the airway. If non-invasive procedures prove to be ineffective, a cricothyrotomy should be performed by trained rescuers. Many of the victims of foreign body airway obstruction are either children or elderly. Most foreign body airway obstruction deaths can be avoided if the rescuer has been trained in the proper treatment.

Acquired Immunodeficiency Syndrome↗

Transcutaneous electrical nerve stimulation and pain relief: an overview.

Pain serves a very useful purpose. It is an important symptom for the physician when diagnosing disease. Pain is often thought of as a secondary phenomenon for some sort of bodily dysfunction. However, pain can become the principal problem and very often the only problem. Its persistence over many months ultimately leads to personal, familial and social deterioration. Chronic pain costs industry a minimum of 50 billion dollars a year. One in every 10 Americans will sooner or later suffer from chronic pain. Pain and headaches together account for 30 million yearly visits to health practitioners. Drugs have always been used as the primary source of relief from pain. These may range from aceteminophen and aspirin, to strong narcotics, such as morphine. Drugs, however, are not the final answer to pain relief. In addition to other side effects, 25 percent of patients with chronic pain become addicted, and many go through withdrawal upon discontinuing the pain relieving drugs. Transcutaneous electrical nerve stimulation (TENS) works by providing sensation which interferes with the perception of pain, sometimes providing periods of relief after the electrical sensation has stopped.

Electric Stimulation Therapy↗

The early diagnosis of peripheral vascular disease.

The time has long since passed when gangrene followed by amputation was the anticipated outcome of peripheral vascular disease of the extremities. Nevertheless, today in the United States it is estimated that there are more than half a million amputees. With preventive measures, early diagnosis, and adequate treatment, gangrene will be avoided and the patient will retain the use of his limbs.

Arterial Occlusive Diseases↗

Stress and ulceration: medico-legal aspects.

This paper outlines the possibility of acute, and perhaps, fatal, if not diagnosed, stress ulcers precipitated by trauma, surgery, or other potentiating events. It should once again be emphasized that prevention is the best treatment for the stress-induced ulcer, and that this prevention may occur at both a secondary level (defusion of emotive or physical precipitators) and a primary level (reduction of gastric acid and/or bleeding).

Arousal↗

Antimicrobial prophylaxis.

This paper discusses when antimicrobial prophylaxis should be initiated and when it is not recommended as an effective treatment or means of prophylaxis. Various surgical procedures take complete advantage of the effectiveness of such prophylaxis against the emergence of infection and complications; however, the possibility of superinfection is always present and should not be overlooked by the attending physician.

Anti-Bacterial Agents↗

Gunshot wounds.

Explore the source record for details and available documents.

Abdominal Injuries↗

Blood transfusion reactions.

Transfusion reactions range from mismatching of blood causing reaction, to the transmission of diseases such as hepatitis through the improper screening of blood. This paper discusses guidelines for transfusions of various blood fractions or components, reasons for transfusions of red blood cells rather than whole blood, the problem of blood platelets, the prohibition against fibrinogen, and the various volume expanders.

Blood Group Incompatibility↗