Biomedical subjects

S Lippert

Publications and source records attributed to S Lippert.

13 recordsLinked to original sources

PubMed1992

Bacterial sedimentation during cardiac surgery reduced by disposable clothing.

The effect of three types of operating-room clothing on bacterial sedimentation was studied during cardiac valve surgery. The 24 operations were divided into three groups, according to type of clothing worn by all personnel--standard cotton, open style non-woven or closed style non-woven. Sedimentation on open agar plates was greatest when cotton clothing was worn, less with open style non-woven garments (difference not significant), and still less with closed style non-woven clothing (difference statistically significant). The sedimentation corresponded to estimated airborne concentrations (cfu/m3) of 79.6 (cotton clothing), 59.7 (open style non-woven) and 7.2 (closed style non-woven). Use of closed style non-woven operation clothing is recommended for cardiac surgery.

Adult↗

PubMed1990

Dental procedures and endocarditis prophylaxis: experiences from 108 dental practices.

In a previous survey, we analyzed a questionnaire to 220 patients, who underwent cardiac surgery with insertion of prosthetic heart valves in the period 1978-1982. Of the 147 patients with their own natural teeth, 136 gave us permission to contact their regular or casual dentists. Of the 108 dentists (79%), who responded to a questionnaire, two thirds were well aware that their patients had prosthetic heart valve and the vast majority of dentists believed that antibiotic prophylaxis is justified in connection with (certain) dental procedures. However, only 15 dentists (14%) prescribed prophylactic antibiotics, i.e. before scaling. The dosage route, frequency and duration of antibiotic administration used by more than half of the dentists was not in accordance with modern principles of antibiotic prophylaxis to prevent bacterial endocarditis. Proposals for antibiotic regimens have to be linked to better education/information of the patients, doctors and dentists and should be linked to recommendations to ensure the highest level of dental care in risk patients.

Anti-Bacterial Agents↗

PubMed1989

Automated turbidimetry for the rapid differentiation and enumeration of bacteria in food.

A fully automated analysis system has been used to determine bacterial contamination in food, both qualitatively and quantitatively. Growth curves of bacterial flora were monitored using differential media, and a correlation was established between growth curve parameters and colony-forming units derived from drop-plating as the reference method. Optimal correlation was reached by multiple linear regression. The results were already obtained 16 h.

Animals↗

PubMed1989

Elimination of cefuroxime and gentamicin during and after open heart surgery.

In eight consecutive adult heart surgery patients, serum concentrations of cefuroxime and gentamicin were studied during and after operation. Repeated doses of cefuroxime 1.5 g and gentamicin 80 mg were given. Intra-operative concentrations were deemed adequate (cefuroxime Cmin: 16-45 mg/l, gentamicin Cmin: 1.6-2.8 mg/l), and no differences (P = 0.05) could be demonstrated between elimination rates during and after open heart operation (cefuroxime T1/2 101 vs 111 min, gentamicin T1/2 191 vs 193 min).

Adult↗

PubMed1989

Dental procedures and endocarditis prophylaxis in patients with prosthetic heart valves: results of a questionnaire to 220 patients.

220 patients with prosthetic heart valves were surveyed regarding dental status, dental health, patient-dentist relationship, information on dental procedures and antimicrobial prophylaxis at the last visit to the dentist. The vast majority of these patients were on life-long anticoagulant treatment because of mechanical heart valve prostheses. Half of the patients had a regular dentist and customarily visited a dentist one or more times a year. One third of the patients were edentulous and 26.5% of the patients indicated dental disease, including chronic periodontitis. Only 30.4% of the patients received antimicrobial prophylaxis in connection with dental extraction and only 13.8% in connection with scaling. Maintenance of good oral health, routine dental checks and better information to the patients and the dentist are called for.

Adult↗

PubMed1987