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Biomedical subjects

James A Hadley

Publications and source records attributed to James A Hadley.

20 records · Page 2Linked to original sources

Pharmacological treatments for rhinosinusitis.

Acute bacterial rhinosinusitis (ABRS) is a well-recognised and common problem confronting many primary care physicians but the abuse of antibiotic therapy for viral aetiologies of ABRS has lead to widespread bacterial resistance. The once easily-eradicated pathogens have developed many mechanisms to resist antimicrobial therapies. The most common pathogens Streptococcus pneumoniae, Haemophilus influenzae and Moraxella catarrhalis are still found in cultures of sinus cavities but Staphylococcus and possibly some anaerobes play an important role in the development of the chronic stage of rhinosinusitis. The choice of antibiotic therapy for both ABRS and chronic rhinosinusitis (CRS) are reviewed, along with considerations for ancillary therapy. Note is made of the role of chemical mediators in the inflammatory stage possible strategies to reduce this problem. Allergic fungal rhinosinusitis results from a hypersensitivity reaction to demetiaceous fungi. Cure of the effects of rhinosinusitis depends on the establishment of a healthy sinus cycle.

Anti-Bacterial Agents↗

Rational use of antibiotics to treat respiratory tract infections.

OBJECTIVES: To foster the appropriate use of antimicrobial agents for respiratory tract infections and to review factors that should help achieve this objective. STUDY DESIGN: Review of evidence-based guidelines and recommendations for proper antibiotic drug use for respiratory tract infections. RESULTS AND CONCLUSIONS: Antibiotic drug overuse and inappropriate antibiotic drug selection are associated with increased drug resistance among respiratory pathogens (most notably, Streptococcus pneumoniae), possible progression to chronic disease, and increased treatment costs. Awareness of clinical manifestations that help differentiate viral from bacterial infection and the use of guidelines can promote the appropriate management of respiratory tract infections. Community-acquired pneumonia, acute bacterial rhinosinusitis, and selected cases of acute exacerbations of chronic bronchitis (50%) warrant antimicrobial therapy, whereas otitis media with effusion, acute bronchitis, and most rhinosinusitis are viral and do not require antibiotic therapy.

Anti-Bacterial Agents↗