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Biomedical subjects

W Ott

Publications and source records attributed to W Ott.

35 records · Page 2Linked to original sources
PubMed1980

[Antibacterial therapy of purulent peritonitis: a prospective randomized study on the effects of antibiotics and taurolin, a new chemotherapeutic and antiendotoxic agent (author's transl)].

A prospective randomized study on the value of additional antibacterial therapy in surgically treated, purulent peritonitis (69 patients) is presented. A new chemotherapeutic agent Taurolin with antiendotoxin activity is tested against conventional antibiotic therapy. There was an increased rate of secondary wound healing and overall complications in the Taurolin group (especially bronchopneumonia). Local complications and lethality due to peritonitis occur similarly frequently in both groups. The bactericidal and antiendotoxic effects of Taurolin, its lacking toxicity (possibility of higher dosage), and the choice of combination with antibiotics make it a most interesting substance for additional antibacterial therapy for purulent peritonitis following surgical treatment.

Anti-Bacterial Agents↗
PubMed1979

[An index of peritonitis originating in the biliary tract: correlation with the postoperative course (author's transl)].

Peritonitis originating in the biliary tract is analyzed in 41 patients (1973--1977). Cholelithiasis was the underlying disease in 90% of the cases, and one patient suffered from carcinoma of the biliary tree. Early cholecystectomy was performed in 95% of the patients. Peritonitis was localized in two-thirds and diffuse in one-third of the patients. A perforation was present in 63%. The grade and extent of peritonitis could be correlated with the postoperative course. One-half of the patients with turbid or purulent exudate developed postoperative fever; one fifth showed secondary wound healing. The diffuse form of peritonitis was followed more often by postoperative fever than the localized form. Although the presence or absence of perforation did not influence this parameter in the diffuse form, it did influence cases of localized peritonitis. Only the diffuse forms of peritonitis were followed by secondary wound healing. A peritonitis index was established from age, risk factors, and several preoperative and intraoperative findings. It could also be correlated with the postoperative course. The peritonitis index may classify the disease state of patients with peritonitis and may be found useful in evaluating prognosis at the time of the operation.

Aged↗
PubMed1976

[Severe hyperosmolarity caused by dietary error in the newborn. A disorder of particular concern in migrants].

Hyperosmolarity as a result of dietary error is a fairly common condition. It is more grave than "thirst fever", the benign reputation of which should not be taken too lightly. The consequences may be serious: death or sequelae related to vascular thrombosis or cerebral lesions. Prevention should be possible in most instances as long as obstetricians, paediatricians, midwives and nursery nurses are aware of the danger of overconcentrated milk formula. Its treatment remains fraught with hazard.

Animals↗
PubMedDate not supplied

Assessment of indoor fine aerosol contributions from environmental tobacco smoke and cooking with a portable nephelometer.

Personal monitoring studies have indicated that environmental tobacco smoke (ETS) and cooking are major indoor particulate sources in residential and nonindustrial environments. Continuous monitoring of fine particles improves exposure assessment by characterizing the effect of time-varying indoor sources. We evaluated a portable nephelometer as a continuous monitor of indoor particulate levels. Simultaneous sampling with the nephelometer and PM2.5 impactors was undertaken to determine the relationship between particle light scattering extinction coefficient (sigma(sp)) and particle mass concentration in field and environmental chamber settings. Chamber studies evaluated nephelometer measurements of ETS and particles produced from toasting bread and frying foods. Field measurements were conducted in 20 restaurants and bars with different smoking restrictions, and in five residential kitchens. Additional measurements compared the nephelometer to a different mass measurement method, a piezobalance, in a well-characterized residence where various foods were cooked and ETS was produced. Since the piezobalance provides 2-min average mass concentration measurements, these comparisons tested the ability of the nephelometer to measure transient particle concentration peaks and decay rate curves. We found that sigma(sp) and particle mass were highly correlated (R2 values of 0.63-0.98) over a large concentration range (5-1600 microg/m3) and for different particle sources. Piezobalance and gravimetric comparisons with the nephelometer indicated similar sigma(sp) vs. mass slopes (5.6 and 4.7 m2/g for piezobalance and gravimetric comparisons of ETS, respectively). Somewhat different sigma(sp) vs. particle mass slopes (1.9-5.6 m2/g) were observed for the different particle sources, reflecting the influence of particle composition on light scattering. However, in similar indoor environments, the relationship between particle light scattering and mass concentration was consistent enough to use independent nephelometer measurements as estimates of short-term mass concentrations. A method to use nephelometer measurements to determine particulate source strengths is derived and an example application is described.

Aerosols↗