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Biomedical subjects

P Werner

Publications and source records attributed to P Werner.

At least 181 records · Page 10Linked to original sources

Left ventricular thrombus in agnogenic myeloid metaplasia.

A 40-year-old white male with agnogenic myeloid metaplasia presented to our institution with symptoms of fever, rash and pleuropericardial pain. A two-dimensional echocardiogram revealed a pedunculated left ventricular mass which simulated a left ventricular myxoma. Left ventricular wall motion and coronary arteries were normal on preoperative angiography. The mass was surgically removed and found to be fibrin thrombus. A mild chronic inflammatory infiltrate was present in the base of the thrombus. The formation of thrombus in the left ventricle was ascribed to spontaneous aggregation of platelets and myocarditis of unknown cause.

Adult↗

[Aseptic tracheobronchial aspiration].

Nosocomial lung superinfection is a frequent feature in ICU hospitalized patients. Up to 60 per cent of these patients may develop pneumonia, depending on the severity of their underlying disease. Necessary tracheobronchial irrigations and succions expose patients requiring mechanical ventilation to a risk of bacterial contamination by water containing infections particles. The "no touch method", elsewhere described, using disposable material and serious asepsis, try to diminish rate of one of the risk factors for acquired pneumonia. The use of a single-dose plastic bottle of sterile normal saline (solution ophta-ORL Faure) for tracheal irrigation is a clean and very low cost-price method, that minimize the risk of extrinsic contamination.

Cross Infection↗

Tumoral calcinosis associated with sarcoidosis and positive bone and gallium imaging.

A 63-year-old female with biopsy proven tumoral calcinosis presented with progressive and recurrent swelling and tenderness of the right hip, thigh, elbow, and wrist. Both gallium and bone imaging demonstrated intense, congruent uptake in these areas. This is the third case of tumoral calcinosis with sarcoidosis documented in the literature. However, these are the first published bone and gallium scans in a patient with a history of sarcoidosis and tumoral calcinosis.

Calcinosis↗

Development of movement schema in young children.

To examine the development of movement schema in young school-age children, i.e., whether principles which govern fine eye-hand coordination skill learning as suggested by Schmidt's schema theory apply to the learning of gross motor skills Exp. 1 involved 48 right-handed first-grade children. On a modification of the Fitts Reciprocal Tapping task children moved a stylus (held in the hand or attached to a special shoe worn on the foot) between two metal targets separated by different distances. Children were randomly assigned to one of eight groups: two control or no-practice groups and six experimental or transfer groups. A one-way analysis of variance followed by appropriate Scheffé post hoc tests indicated that movements of the lower limbs were not organized into a movement schema, but a pattern of schema of movement for the upper limbs developed. That no movement schema developed for lower limb movements suggests development of movement schema is intricately linked to both the existing as well as the potential for developing precise movement in those limbs. Exp. 2 involved 40 first-grade children who were randomly assigned to perform a gross-motor agility task under one of three conditions: direct practice on the criterion task, constant practice on a modification of the criterion task, or variable practice on several different modifications of the criterion task. A groups X trials analysis of variance with appropriate post hoc tests indicated that there were no significant differences among direct, constant, or variable practice groups. Data suggest that the amount of practice may be as important as the type of practice in developing movement schema involved in gross motor skills in young children.

Arm↗

[Substrate property of organic substances in the treatment of drinking water].

A method for the determination of the bacterial growth rate as parameter for the biodegradability of organics in water is described. The increase of the number of bacteria during incubation is measured by turbidity (12 degrees forward scattering) and total cell number counted in the microscope. The method allows to define the influence of water treatment steps (ozone, activated carbon filtration) on the growth rate being a decisive criterion on regrowth problems in distribution systems.

Bacteria↗

[Microbiological studies of ground water polluted with hydrocarbons. 1. Quantitative and qualitative distribution of bacterial populations].

The groundwater, polluted with hydrocarbons, showed large cell numbers during one year of examination: 10(3)-10(4) CFU/ml grown on N-agar after 5 days at 20 degrees C, 10(4)-10(5) CFU/ml grown on water-agar after 8 weeks at 20 degrees C and total cell numbers of 10(5)-10(7)/ml. The bacteria, which were isolated from N-agar, were chiefly Pseudomonas, Flavobacterium, Acinetobacter, and other gramnegative species, Arthrobacter and Bacillus as members of grampositive bacteria. Furthermore the following "physiological' groups were found in the groundwater: ammonium-oxidizing bacteria (MPN 10(1)-10(2)/ml), sulfur-oxidizing bacteria (MPN 10(1)-10(4)/ml), nitrate-reducing bacteria (MPN 10(3)-10(6)/ml), denitrifying bacteria (MPN 10(1)-10(4)/ml), spores of aerobe spore-forming bacteria (2-30/ml), spores of anaerobe spore-forming bacteria (0.2-0.4/ml), manganese-oxidizing bacteria (10(3)-10(4) CFU/ml) and Actinomycetes (0.1-1.0 CFU/ml).

Acinetobacter↗