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Biomedical subjects

C R Cannon

Publications and source records attributed to C R Cannon.

At least 55 records · Page 3Linked to original sources
PubMed1990

Patient-controlled analgesia (PCA) in head and neck surgery.

Patients undergoing head and neck surgery often have significant pain because of the anatomic area involved, the nature of the surgery and trauma associated with the anesthesia and surgery, or the use of packing postoperatively. A patient-controlled analgesia (PCA) infuser is available that allows the patient to direct delivery of their own analgesia. The physician orders the narcotic analgesic dose to be given, the interval between doses, and the total amount of analgesic to be delivered over 4 hours. The patient simply presses a button connected to the analgesic infuser, which delivers a predetermined intravenous dose of the particular analgesic. The infuser is then "locked out" for an interval of 10 to 15 minutes before the patient can direct another dose of medicine. This system allows the patients to initiate intravenous delivery of their narcotic analgesic, and maintain control of pain, using small incremental doses of the analgesic agent. This PCA pump has been used successfully in a number of patients undergoing various general, head and neck, and facial aesthetic procedures. The general concept of the PCA pump, guidelines for use, and contraindications are presented.

Adult↗
PubMed1990

Basosquamous carcinoma of the head and neck.

Clinical experience with two cases of basosquamous are described. Wide surgical excision is the preferred method of treatment. In some cases, however, radiation therapy or chemotherapy may be useful treatment adjuncts. Unfortunately, prognosis is poor.

Aged↗
PubMed1989

Video documentation of endoscopic sinus surgery.

A simple, reliable technique for videotaping endoscopic sinus surgery is described. This system may be used for teaching purposes and patient education. It may also be used to document pathologic conditions of the sinus as well as for documenting the surgical procedure itself.

Endoscopy↗
PubMed1987

Immature teratoma of the larynx.

Teratomas are unusual tumors which occasionally occur in the head and neck. The tumor consists of the three basic germ-cell layers, in various degrees of maturation. Because of its malignant potential in adults, complete surgical excision is recommended. The patient we have described is believed to provide the first reported case of laryngeal teratoma in the English literature.

Adult↗
PubMed1986

Mandibular ameloblastoma.

Ameloblastoma is an uncommon invasive mandibular tumor usually occurring as a painless enlargement of the jaw. Radiologic evidence of a multilocular lesion requires biopsy for histopathologic distinction. With its propensity for recurrence, en bloc resection of the tumor is recommended. Careful and meticulous follow-up for an extended period is necessary.

Ameloblastoma↗
PubMed1986

Evaluation of the thyroid nodule.

Evaluation of thyroid nodules challenges the most astute clinician. The history and the physical examination often identify those patients who require immediate surgical management. In other patients, time-honored thyroid function studies and thyroid scanning are helpful. Fine needle aspiration and computed tomography are also valuable in the diagnostic work-up.

Adolescent↗
PubMed1985

Bilateral chondrodermatitis helicis: case presentation and literature review.

Chondrodermatitis helicis is a benign, painful lesion of the auricle affecting the elderly population, particularly men. These lesions usually affect the helix of the ear, although the antihelix and, less commonly, the antitragus may be involved. The lesions are most frequently unilateral, although bilateral involvement has been reported. An unusual case of bilateral involvement of the antitragus is presented. The etiologic and pathologic manifestations are reviewed and current treatment modalities outlined.

Dermatitis↗
PubMed1983

Temporal bone fractures. Review of 90 cases.

Of 1,300 consecutive head-injured patients admitted to the hospital over a 20-month time period, 118 were found to have skull fractures, of which 22% involved the temporal bone. These figures form part of a larger study of 90 temporal bone fractures treated over a six-year period from 1975 through 1981. The most common cause of a temporal bone fracture was a motor vehicle accident occurring in 40/90 (44%) patients. Pertinent physical findings, occurring alone or in combination, were a hemotympanum, bleeding from the ear canal, tympanic membrane perforation, facial paralysis, and CSF otorrhea. The diagnosis of temporal bone fractures is best made clinically and radiographically. The early care of temporal bone fractures is directed toward the treatment of CSF otorrhea and immediate onset facial paralysis. The delayed care is primarily concerned with hearing rehabilitation.

Adolescent↗