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C A Rosenberg

Publications and source records attributed to C A Rosenberg.

12 recordsLinked to original sources
PubMed1998

Statistical methodology: VII. Q-methodology, a structural analytic approach to medical subjectivity.

Q-methodology is a relatively unknown tool to medical researchers, that uses a mixed quantitative/qualitative statistical technique known as by-person factor analysis to study subjectivity. Q-methodology allows the grouping of individuals according to their subjective feelings about a topic, without requiring preconceived ideas regarding the structure of those subjective feelings. Q-methodology is demonstrated using a study in which attitudes of emergency medicine residents toward computer education are explored systematically and classified in terms of statistically distinct factor viewpoints. In this example, Q-methodology identifies 4 attitude groups, as related to computers and computer education: 1) interested, eager to learn; 2) frustrated and interested, but with reservations; 3) interested mainly in benefits, willing to expend minimal effort; and 4) knowledgeable, independent learner. Q-methodology can be used to determine the structure of attitudes on a subjective topic, often yielding new insights.

Attitude↗
PubMed1996

GI cocktail.

Explore the source record for details and available documents.

Anesthetics, Local↗
PubMed1991

A comparison of prehospital estimated time of arrival and actual time of arrival to an emergency department.

The accuracy of the paramedic's estimated time until arrival (ETA) to an emergency department has never been studied. Two hundred and eighty paramedic runs were prospectively studied in a suburban, residency-affiliated emergency department. The average ETA was 7.39 +/- 3.72 minutes. The average actual time until arrival, as clocked by the directing emergency physician was 10.29 +/- 3.95 minutes. Two hundred and twenty-seven (81%) patients arrived later than their ETA. There were 24 (8.5%) cases where the physician's prehospital management would have been different had the ETA been more accurate.

Emergency Medical Technicians↗
PubMed1991

Narrow-angle glaucoma presenting as acute, painless visual impairment.

A 42-year-old woman presented with the acute onset of bilateral blurred vision that occurred immediately after bending over. She denied pain or any other associated symptoms. Markedly increased intraocular pressure readings were found. Treatment for acute narrow-angle glaucoma was initiated, and normal vision returned. This case represents an atypical presentation of acute narrow-angle glaucoma, a true ophthalmological emergency. The pathophysiology and treatment options of this disease process are summarized.

Acetazolamide↗
PubMed1985

Hormonal and chemotherapeutic treatment of prostatic carcinoma; Dunning adenocarcinoma of the prostate in Copenhagen-Fischer rats.

The relative efficacy of hormonal, chemical, or combined therapy was investigated in a prostate cancer animal model. 96 Copenhagen-Fischer hybrid rats were implanted with equal-sized fragments of the Dunning H strain transplantable prostatic adenocarcinoma. These animals were randomly assigned to 1 of 6 treatment groups: (1) control, (2) testosterone, (3) testosterone followed by cyclophosphamide, (4) cyclophosphamide, (5) orchiectomy or (6) orchiectomy followed by cyclophosphamide. Animals in the control group had the shortest survival, fastest tumor growth rate, and largest tumor size. Testosterone, when compared to the control group, did not accelerate tumor growth. Cyclophosphamide alone, orchiectomy alone, cyclophosphamide plus orchiectomy, and testosterone plus cyclophosphamide were each equally effective in decreasing tumor growth rate. Tumor size in the testosterone plus cyclophosphamide-treated animals was equivalent to that in orchiectomized animals. The survival of all groups treated with cyclophosphamide was reduced because of toxicity. Testosterone administered prior to cyclophosphamide eliminated and shortened survival from cyclophosphamide. The best overall results were obtained by orchiectomy alone, orchiectomy plus cyclophosphamide, and testosterone plus cyclophosphamide. Although chemotherapy alone was effective in shrinking tumor size, it was highly toxic.

Adenocarcinoma↗
PubMedDate not supplied

Emergencies in the air: problems, management, and prevention.

Medical emergencies may arise on board commercial airlines. Although infrequent, such events annually affect a substantial number of air travelers. Physicians should be aware of the options available to them should they find themselves in an emergency situation on an aircraft. This article examines the incidence of in-flight emergencies, surveys the onboard medical kit, and explores various in-flight medical problems and treatments. It concludes with a discussion of various methods of prevention.

Aerospace Medicine↗