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At least 127 records · Page 7Linked to original sources
PubMed2000

Prophylactic antibiotics for cystic fibrosis.

BACKGROUND: Patients with cystic fibrosis are sometimes prescribed antibiotics to take continuously on a prophylactic (preventative) basis. This approach is most commonly used in infants where the objective is to reduce pulmonary infection with Staphylococcus aureus and prevent lung damage. This approach may also be used in older patients. This review evaluates the evidence for the effectiveness of this approach and considers potential adverse effects. OBJECTIVES: To compare continuous oral antibiotic prophylaxis with no prophylaxis (short courses of oral antibiotics given as clinically indicated) in patients with cystic fibrosis. This review considers both the effectiveness of prophylaxis (bacteria isolated from the respiratory tract, requirement for additional antibiotic treatment, lung function, survival) and the adverse effects. SEARCH STRATEGY: The Cochrane Cystic Fibrosis and Genetic Disorders Group clinical trials register was used. This comprises references identified from a comprehensive search of electronic databases, as well as hand searching relevant journals and conference abstracts. Companies manufacturing anti-staphylococcal antibiotics were also approached for unpublished data. Date of the most recent search of the Group's specialised register: November 1999. SELECTION CRITERIA: All randomised or pseudo-randomised trials where continuous oral prophylactic antibiotics, given for a period of at least one year, were compared to intermittent antibiotic therapy given "as required." Cystic fibrosis patients of any disease severity were considered. DATA COLLECTION AND ANALYSIS: Trials were assessed for eligibility, methodological quality and data extraction by two reviewers (AS & SW). The following outcomes were assessed: lung function; nutrition (weight standard deviation score); survival; requirement for additional antibiotic treatment; isolates of pathogens from the respiratory tract; occurrence of adverse reactions to prophylactic antibiotics. MAIN RESULTS: Only two studies, totalling 66 patients (over half of whom were infants), were suitable for inclusion in the review. A reduced prevalence of Staphylococcus aureus in the respiratory secretions was seen in children receiving anti-staphylococcal antibiotic prophylaxis, although no effect was seen on other common pathogens. This is associated with a reduced requirement for additional courses of oral antibiotics and fewer hospital admissions in the first two years of life in patients receiving prophylaxis. No effect on infant lung function has been shown after one year of prophylactic treatment. Data are not available on adverse effects of the interventions. As the duration of the studies reviewed has been of two years or less, conclusions cannot be drawn about the long term effects of prophylaxis on acquisition of Pseudomonas aeruginosa and survival. REVIEWER'S CONCLUSIONS: Anti-staphylococcal antibiotic prophylaxis may be of benefit when commenced early in infancy and continued up to two years of age. There is insufficient evidence from this review to say whether use in older children, or adults, or for periods of over two year is beneficial.

Adult↗
PubMed1983

Comparison of live bacteria infusions in a porcine model of acute respiratory failure.

Acute respiratory failure (ARF) related to sepsis continues to have a high mortality and uncertain pathogenesis. With a reproducible live Pseudomonas aeruginosa infusion pig model, the gas exchange, hemodynamics, and pulmonary clearance of this organism were compared with live Staphylococcus aureus and Escherichia coli. Lightly anesthetized, male, mixed-breed pigs, 15-30 kg, were intubated, allowed to breathe spontaneously, and had femoral artery, central venous, and Swan-Ganz catheterization through cutdowns. After baseline data were collected, approximately 1 X 10(9) organisms/20 kg/min were infused into a central vein for 4 hr with frequent monitoring of the variables. Immediate autopsies were done for related quantitative tissue culture studies. S. aureus pigs maintained a high rate of lung bacterial clearance with pulmonary hypertension, a nonsignificant decrease in PaO2, and relatively normal lungs at autopsy. Ps. aeruginosa and E. coli animals developed systemic hypotension, pulmonary hypertension, increased pulmonary vascular resistance, hypoxemia, and decreased pulmonary clearance. Their lungs had gross congestion and edema. These studies confirm the suitability of E. coli and Ps. aeruginosa infusion into pigs as a model of sepsis-induced ARF in man. The findings also indicate that neither pulmonary hypertension nor bacterial clearance by the lungs is sufficient to cause ARF.

Acute Disease↗
PubMed1989

Bombay experience in intensive respiratory care over 6 years.

The experience of the intensive respiratory care in 930 cases treated from 1983 for 4 years and in 404 cases over the next 2 years is reported. The background operational problems are stressed. Those between age 10 and 50 years did significantly better (p less than 0.05). The survival over the first 4 years in IPPR cases was 16.3% and in non IPPR group 71.8%; over the next 2 years, the former group, survival was 32.4 and 36.3%. The survival in asthmatic patients was high (76%). In cases with organophosphorus poisoning (without IPPR), survival was 81% while in IPPR group it was 29%. In 1988, the results in this group were better due to more aggressive management. In autopsy data on 85 cases, infection was not a major feature in those dying within 24 hours. The survival in COPD cases showed significant relation to age (p less than 0.05), initial arterial pO2 below 60 mm (p less than 0.01) and arterial pH below 7.3 (p less than 0.01). In cases with pneumonia (also asthma) younger cases did better (p less than 0.05) as also those with pneumonia and initial pO2 above 60 mm (p less than 0.01) and pH above 7.3 (p less than 0.001). When pneumonia was community acquired, survival (64.8%) was better than when it was hospital acquired (24%; p less than 0.01). Only the need for IPPR affected survival in trauma group. The major cause of death was infection with Klebsiella, Pseudomonas, Staphylococci and other gram--ve organisms. It is concluded that with proper planning and training, the IRCU does provide a useful mode of treatment in selected patients with respiratory problems.

Adolescent↗
PubMed1986

Infectious disease emergencies.

Patient visits to the primary care physician are prompted most often by an infectious disease. The clinician must be aware of the common and serious infections present in the community and must institute proper diagnostic and therapeutic measures. Diagnosis and treatment of streptococcal infections, staphylococcal infections, pneumonia and upper respiratory tract infection, bone and joint infections, sinusitis, clostridial infections, and tetanus are discussed.

Anti-Bacterial Agents↗