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Biomedical subjects

O Sugar

Publications and source records attributed to O Sugar.

At least 19 recordsLinked to original sources
PubMed1992

Dorcas Hager Padget: artist and embryologist.

Dorcas Hager Padget (1906-1973), a largely self-taught illustrator, became a more polished artist under Max Brödel at Johns Hopkins Hospital, before going to work for neurosurgeon Walter Dandy. In search of more information on vascular anatomy, she became an expert neuroembryologist, first in the development of arteries and veins and later chiefly involved with anomalies of neural tube development. She was able to clarify the development of the Arnold-Chiari and Dandy-Walker syndromes.

Embryology↗
PubMed1990

Victor Horsley, John Marshall, nerve stretching, and the nervi nervorum.

In his early professional life, Victor Horsley was registrar and assistant to Mr. John Marshall, anatomist, surgeon, and president of the Royal College of Surgeons. In helping with the research for the Bradshaw Lecture on Nerve Stretching given by Marshall in 1883, Horsley demonstrated changes in nerve fibers due to mechanical stretching of the sciatic nerve, and he also demonstrated small nerve fibers in the sheaths of peripheral nerves--the so-called nervi nervorum. Marshall attributed the benefits of nerve stretching in sciatica to the interference with these nervi nervorum hitherto considered to exist only in the sheath of the optic nerve.

History, 19th Century↗
PubMed1989

Nonoperative versus operative intervention in low back disorders.

Examination of the patient is necessary to rule out those numerous causes of lumbosacral backache that need not involve the neurosurgeon. A variety of nonoperative treatments (rest, injection of tender pressure points, extradural injections, traction in which the pelvis is fixed and the chest and upper spine can be pulled from the pelvis, and manipulations of the spine) can be used with proper precautions. Injections of enzymes to dissolve the disc have had declining use among neurosurgeons because of actual or feared complications. Operations range from percutaneous disc excision or laminotomy with decompression of nerve roots, to disc excision with interbody fusion. Selection of proper operative treatment to be undertaken when an adequate period of conservative (nonoperative) therapy has been fruitless is controversial. Probably the simplest way of excising a disc with small incisions and minimal disruption of normal anatomic relationships is preferred.

Back Pain↗
PubMed1987

How the sacrum got its name.

The os sacrum (sacred bone) was so named by the Romans as a direct translation from the older Greek hieron osteon. Explanations of the attribute "sacred" or "holy" in the past have included misinterpretation of the Greek word hieron, use of the bone in sacrificial rites, the role of the bone in protecting the genitalia (themselves considered sacred), and the necessity for the intactness of this bone as a nidus for resurrection at the Day of Judgment. A more plausible explanation may be that the holiness of the sacral bone was an attribute borrowed from the ancient Egyptians, who considered this bone sacred to Osiris, the god of resurrection and of agriculture.

History, Ancient↗
PubMed1987

Hyponatremia.

Explore the source record for details and available documents.

Diagnosis, Differential↗