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Biomedical subjects

F J Wenzel

Publications and source records attributed to F J Wenzel.

At least 37 records · Page 2Linked to original sources
PubMed1975

Impact of membership in an enrolled, prepaid population on utilization of health services in a group practice.

Members of prepaid group-practice medical-care plans are believed to use more ambulatory, but fewer inpatient, services than populations served by fee-for-service practitioners. It is not known whether these differences are attributable to the prepayment aspects of the plan or to other circumstances. We studied the impact on use of services of only one factor-prepayment at the Marshfield Clinic, Wisconsin--with all other factors, including group practice, held constant. The findings were derived from the experience one year before, and two years after, the initiation of the prepaid program. Results showed that prepayment alone resulted in significant increases in both inpatient and ambulatory care (about 100 per cent in ambulatory-care visits, 75 per cent in hospital discharges, and 60 per cent in hospital days). These increases were far greater than comparable increases in the fee-for-service population served by the Clinic.

Ambulatory Care↗
PubMed1975

Cholecystectomy peer review: measurement of four variables.

Process and outcome analyses were carried out on a group of patients who had uncomplicated cholecystectomy. The postoperative length of stay and patient satisfaction were also measured. A random sample of 80 charts was selected from 222 eligible records for process analysis. Outcome was evaluated in 218 of the 222 eligible patients against explicit criteria. More patients were in the symptomatic and back-to-work group than expected. The peer consensus was that these results were not related to the surgical procedure or specifically related to gallbladder disease. Ninety-five per cent of the patients assessed care as good or excellent, and 90 per cent felt the length of postoperative stay was satisfactory. When the patients were divided according to surgeon, significant differences in the length of postoperative stay were found in the 154 patients without common bile duct exploration. After the findings were presented to the surgeons through an educational program, changes occurred which resulted in a decrease of nearly one day in the postoperative hospitalization.

Cholecystectomy↗
PubMed1975

Complement fixation test as an aid in the diagnosis of farmer's lung.

Complement-fixing antibodies to Micropolyspora faeni were measured in farmers and controls. Farmers with known or suspected farmer's lung showed significantly higher titers than control groups. Variations in titer were measured and correlated with the clinical disease.

Antibodies, Bacterial↗
PubMed1975

Pulmonary mycotoxicosis.

Mycotoxicosis is a term used to define a toxic reaction due to the ingestion of toxins produced by fungi. Oral ingestion, however, may not be the sole means of exposure. We have recently observed ten patients who had inhaled massive amounts of fungi, which resulted in an apparent toxic pulmonary reaction. Immunologic studies showed no sensitivity to various fungal antigen preparations and histologic study of the lung showed a multi-focal acute process, with primary involvement of the terminal bronchioles containing large numbers of various spores. Cultures from lung biopsy material revealed at least five fungal organisms. A one to ten year followup indicates that avoidance of massive reexposure to fungal dust is the key to the prevention of recurrent pulmonary mycotoxicosis.

Adolescent↗
PubMed1975

Distal propulsion of vena cava umbrella by cardiac massage.

Distal propulsion of a 28 mm umbrella filter from vena cava to femoral vein occurred in a 75-year-old woman during external cardiac massage. After cardiac massage, filter position must be checked roentgenographically. Optimal management of distal migration might include placement of a second umbrella to prevent recurrent emboli and proximal migration of the dislodged umbrella.

Aged↗