PubMed Health⌕ Search

Biomedical subjects

J E Chapman

Publications and source records attributed to J E Chapman.

At least 19 recordsLinked to original sources
PubMed1991

The diffusion of medical technology: free enterprise and regulatory models in the USA.

The diffusion of technology in the US has taken place in an environment of both regulation and free enterprise. Each has been subject to manipulation by doctors and medical administrators that has fostered unprecedented ethical dilemmas and legal challenges. Understanding these developments and historical precedents may allow a more rational diffusion policy for medical technology in the future.

Certificate of Need↗
PubMed1990

Business and managerial education in the medical school curriculum.

The need for medically related business and managerial training for medical students and physicians is an area of education that has been frequently discussed among physicians in private and academic practice. However, little has been done by physicians or in formal programs of medical or graduate medical education to address the need to introduce this type of training. This paper, based upon a survey of the medical students at Vanderbilt University, analyzes this need and proposes three new approaches in implementing medically related business and management education and training.

Curriculum↗
PubMed1988

Congenital absence of pericardium: an unusual cause of atypical angina.

Congenital defects of the pericardium are unusual. Patients may experience exertional chest pain, cardiac arrhythmias, syncope, sudden death, or incarceration of myocardium, or they may be entirely asymptomatic. We describe the case of a symptomatic pericardial herniation diagnosed by echocardiography and confirmed by cineangiography. Successful repair was accomplished using a polytetrafluoroethylene soft-tissue prosthesis.

Adult↗
PubMed1988

Repair of aneurysms of the thoracic aorta: 12-year experience in a high-risk population.

We present our 12-year experience with surgical treatment of aneurysms of the thoracic aorta in a high-risk patient population. Of 52 patients with aneurysms, 36 patients, aged 19 to 80 years, had operation. In 24 of the 36, there were three or more associated major disease processes, such as chronic bronchitis, hypertensive cardiovascular disease, aortic valve disease, cerebrovascular disease, abdominal aortic aneurysm, and coronary artery disease. Eight patients with acute type A (ascending aorta) and seven with acute type B (descending aorta) aneurysms had emergency repair, with survival in four and seven, respectively. All patients with chronic type A or B aneurysms had elective repair, and all patients with acute or chronic type A aneurysms had surgical treatment. Four patients with acute type A and two with acute type B aneurysms had elective operation, with survival in three and one, respectively. Nine patients with chronic type A and six with chronic type B aneurysms had elective operation, and all survived. Twelve patients with chronic type B aneurysms did not have operation, and all were alive at early follow-up. Mortality for patients having acute type A aneurysms requiring emergency operation was greater than that after elective repair of acute or chronic type A aneurysms. Short-term survival for chronic type B aneurysms was similar whether the patient was treated medically or surgically.

Aorta, Thoracic↗
PubMed1988

Combined paraesophageal and sliding hiatal hernia.

We have reported a case of a large paraesophageal herniation with a small sliding component. Abnormal positioning of the esophagogastric junction or the necessity for mobilizing it during repair requires the addition of an antireflux procedure to the standard reduction and repair. Elective repair of a paraesophageal herniation, even in the absence of limiting symptoms, is warranted, since complications of nonsurgical treatment may be sudden and severe.

Esophagogastric Junction↗
PubMed1987

Impaired induction of ornithine decarboxylase activity following nerve crush in the streptozotocin-diabetic rat.

Ornithine decarboxylase activity was measured in the dorsal root ganglia from crushed and uncrushed contralateral sciatic nerve of control and streptozotocin-diabetic rats. A further group of diabetic rats was treated with insulin throughout the experiment. Ornithine decarboxylase activity in ganglia from uncrushed nerves was the same in diabetic and non-diabetic rats. A significant (greater than 4-fold) increase in mean levels of ornithine decarboxylase activity 72 h after crush injury was found in ganglia from crushed nerves in non-diabetic but not in diabetic rats. The enzyme activity in ganglia from diabetic rats treated with insulin resembled that in non-diabetic rats. Twenty-four hours after crush injury, ornithine decarboxylase activity in ganglia from crushed nerves was higher in non-diabetic than in diabetic animals. This may be responsible for the delayed and defective nerve regeneration known to occur in peripheral nerve of the streptozotocin-diabetic rat.

Animals↗
PubMed1986

Angio and peritoneal access for endstage renal disease in the community hospital: a cost analysis.

As the population requiring maintenance dialysis continues to grow, costs have become an important consideration to professionals dealing with this clinical problem. A four and one-half year experience with various methods of dialysis in a community hospital is reviewed. The overall base-level estimate for providing functional access of various types if $19,000 per patient per year.

Arteriovenous Shunt, Surgical↗
PubMed1985

Subclavian steal.

Explore the source record for details and available documents.

Angioplasty, Balloon↗