Air ambulance regulation seen as liability aid.
Explore the source record for details and available documents.
Biomedical subjects
Publications and source records attributed to T Hudson.
Explore the source record for details and available documents.
The number of public referendums held on health care issues are increasing, And voters may have more to say about health care funding issues on a state and local level in the future, say experts. Health care executives are learning--sometimes the hard way--how to participate in campaigns and how to follow up with state legislatures to ensure that the vote is correctly interpreted in the rulemaking phase.
Six cases of osteoid osteoma of the elbow were reviewed to determine the spectrum of clinical, pathologic and radiologic findings. Since osteoid osteoma of the elbow may masquerade as a nonspecific synovitis, the diagnosis is challenging and frequently delayed. The histology is, however, indistinguishable from that of osteoid osteoma occurring in typical locations. The radiologic features of osteoid osteoma of the elbow include the following triad: (a) osteosclerosis, usually a dominant feature at initial imaging and typically enveloping the nidus; (b) joint effusion; and (c) periosteal reaction that can involve both the bone in which the osteoid osteoma arises and adjacent bones. Awareness of these features will facilitate correct diagnosis, thereby facilitating timely and appropriate treatment.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
The histologic features of aggressive Stage 3 benign giant cell tumor of bone were correlated with their radiologic staging studies. Our series includes 24 patients treated at the University of Florida, Department of Orthopaedic Oncology, from January 1979 to July 1983. Particularly in 13 cases, results of routine specimen histologic as well as of the histologic study of macrosections containing the entire resected specimen (the tumor and surrounding bone and soft tissue) were evaluated. Surgical staging studies including plain radiographs, bone scintigrams, computerized axial tomography scans, tomography, and angiography were used to delineate the anatomic location of the lesion. Within this group of giant cell tumors, the general histologic features resemble those of the classic giant cell tumor. However, certain aggressive features best demonstrated on the macrosections, such as cortical and subchondral invasion, capsular and reactive bony zone infiltration, "digital extension" of the tumor, and neovascularity correlated well with the anatomic localization and aggressiveness found on the staging studies. Those findings emphasize the value of staging studies in the delineation of the histologic potential of these benign aggressive lesions.
Parosteal osteosarcoma with either intralesional radiolucencies or extralesional clefts within the tumor was identified in eighteen patients. In each patient, both high-quality radiographs and whole macrosections of the lesions were available for correlative study of the radiolucencies. The intralesional radiolucencies were characterized as either deep or peripheral. Study of the macrosections showed that most of the peripheral lucent areas were comprised of low-grade malignant cartilaginous or fibrous tissue that was mixed with fat and bone trabeculae. The majority (67 per cent) of the high-grade dedifferentiated areas of tumor, however, corresponded to the deep radiolucencies. We think that the presence of a deep radiolucent area on a computed tomographic scan or other preoperative radiographic staging studies must create suspicion that a high-grade (grade-II) dedifferentiated region exists within an otherwise low-grade parosteal osteosarcoma.
The growth of children undergoing continuous ambulatory peritoneal dialysis (CAPD) therapy for end-stage renal disease (ESRD) was compared with the growth of children undergoing hemodialysis and that of children after successful kidney transplantation. The bone ages of the children were used to predict expected growth velocities. The actual growth velocities observed were then expressed as percentages of the predicted rates. Children receiving CAPD therapy grew better than those treated by hemodialysis and as well as the children who received a kidney transplant. There was some correlation between growth and allograft function in the transplant recipients. Children receiving CAPD were less acidotic and were more likely to exhibit improvement in renal osteodystrophy than children treated by ongoing hemodialysis. There were no significant differences in reported caloric intake between the two groups.
Eighteen infants, children, and adolescents were trained in the techniques of continuous ambulatory peritoneal dialysis (CAPD) as a therapy for end stage renal disease (ESRD) at the University of Florida. Fourteen patients successfully continued CAPD 4-24 months, for a total of 193 patient-months. Uremic symptoms were well controlled with blood urea nitrogen concentration (BUN) decreased to between 60 and 80 mg/dl. Parathyroid hormone levels increased but roentgenographic evidence of osteodystrophy improved in most patients. The rate of peritonitis was one episode in 7.7 patient-months. Blood transfusion requirements decreased for patients transferred from in-center hemodialysis to CAPD with no significant decrease in average hematocrits. Caloric intake was adequate and anorexia was usually not a major problem. Children who were evaluated for growth were under 15 years of age, with bone ages less than 12 years, and were using CAPD for longer than 6 months. Their mean growth velocity was 74.7 +/- 20.4% (SD) of the predicted velocity.
The usefulness of full-size radiographs obtained with the overhead tube following fluoroscopy was evaluated based on an analysis of 306 biphasic upper gastrointestinal studies that included follow-up postfluoroscopy views. In 32 studies with abnormal findings, the postfluoroscopy images were normal. In one case, the postfluoroscopy images revealed an abnormality not seen on spot views. The confidence levels rose in only 19 cases (6.2%) when postfluoroscopy images were used. In the appropriate setting, routine postfluoroscopy views after an upper gastrointestinal series are of little value. Nonetheless, in a teaching hospital, these images should be obtained when fluoroscopy is performed by junior residents.
A review of 618 pharyngeal examinations with barium demonstrated laryngotracheal barium in 108 patients. Frame-by-frame analysis of the video studies of these patients suggested the muscle groups responsible for the observed dyscoordination or dysfunction. Review of the literature suggested multiple causes for barium in the airway. Knowledge of specific muscular causes of aspiration should enhance the understanding of neuromuscular dyscoordinations and dysfunctions of the pharynx.
This article offers a general overview of Hansen's Disease (leprosy) and examines in some detail the spatial characteristics and demographic profiles of known sufferers. Over the years the pejorative labels attached to the disease and the societal and psychological attitudes which produce and accompany them have stigmatized leprosy sufferers. Unfortunately this stigma has often pre-empted rational understanding and treatment. Contrary to popular belief, leprosy, caused by the bacteriological agent Mycobacterium leprae, is relatively non-contagious and can be rendered completely non-contagious by chemotherapy. Incidence rates in the United States are extremely low (0.08 per 100,000 in 1979), but have shown a slight if erratic increase since 1942. Most of this can be attributed to increases in the number of foreign born cases; a result of immigration from areas of higher incidence (e.g. Southeast Asia, Latin America). Six states, California, Texas, Hawaii, New York, Florida, and Louisiana accounted for over 80% of the 1432 cases reported in the United States between 1967 and 1976.
The clinical courses of 29 children and adolescents who received their first renal allografts at the University of Florida from 1973 to 1979 were reviewed for the development of osteonecrosis. A minimum follow-up period of 24 months with adequate allograft function was required for inclusion in the study. The incidence of post transplantation osteonecrosis was 21%. The presence of osteodystrophy prior to transplant was strongly correlated with osteonecrosis. Dialysis against high calcium baths prior to transplantation played a protective role. Extensive reviews of their records failed to clearly identify other predisposing factors. Osteonecrosis of the knee was treated with plaster immobilization and osteonecrosis of the femoral head by resection arthroplasty and angulation osteotomy. Improved functional results were obtained on the Iowa Hip Rating Scales.