Community-acquired pneumonia: pathophysiology and host factors with focus on possible new approaches to management of lower respiratory tract infections

2004 ◽  
Vol 18 (4) ◽  
pp. 743-759 ◽  
Author(s):  
Richard G. Wunderink ◽  
Grant W. Waterer
2017 ◽  
Vol 145 (13) ◽  
pp. 2770-2776 ◽  
Author(s):  
G. ANDERSON ◽  
G. DECEUNINCK ◽  
Z. ZHOU ◽  
F. D. BOUCHER ◽  
Y. BONNIER VIGER ◽  
...  

SUMMARYStreptococcus pneumoniaeis an important cause of community-acquired pneumonia and pneumococcal conjugate vaccines (PCVs) may reduce this burden. This study's goal was to analyse trends in lower respiratory tract infections (LRTI) hospitalisations before and during a routine vaccination programme targeting all newborns with PCV was started in the province of Quebec, Canada in December 2004. The study population included hospital admissions with a main diagnosis of LRTI among 6–59 month-old Quebec residents from April 2000 to December 2014. Trends in proportions and rates were analysed using Cochran-Armitage tests and Poisson regression models. We observed a general downward trend in all LTRI hospitalisations rate: from 11·55/1000 person-years in 2000–2001 to 9·59/1000 in 2013–2014, a 17·0% reduction, which started before the introduction of PCV vaccination. Downward trends in hospitalisation rates were more pronounced for all-cause of pneumonia (minus 17·8%) than for bronchiolitis (minus 15·4%). There was also a decrease in the mean duration of hospital stay. There was little evidence that all-cause pneumonia decreased over the study period due mainly to the introduction of PCVs. Trends may be related to changes in clinical practice. This study casts doubt on the interpretation of ecological analyses of the implementation of PCV vaccination programmes.


F1000Research ◽  
2018 ◽  
Vol 7 ◽  
pp. 1121 ◽  
Author(s):  
Charles Feldman ◽  
Guy Richards

Lower respiratory tract infections are the leading cause of infectious disease deaths worldwide and are the fifth leading cause of death overall. This is despite conditions such as pneumococcal infections and influenza being largely preventable with the use of appropriate vaccines. The mainstay of treatment for the most important bacterial lower respiratory tract infections, namely acute exacerbations of chronic obstructive pulmonary disease (AECOPD) and community-acquired pneumonia (CAP), is the use of antibiotics. Yet despite a number of recent publications, including clinical studies as well as several systematic literature reviews and meta-analyses, there is considerable ongoing controversy as to what the most appropriate antibiotics are for the empiric therapy of CAP in the different settings (outpatient, inpatient, and intensive care unit). Furthermore, in the case of AECOPD, there is a need for consideration of which of these exacerbations actually need antibiotic treatment. This article describes these issues and makes suggestions for appropriately managing these conditions, in the setting of the need for antimicrobial stewardship initiatives designed to slow current emerging rates of antibiotic resistance, while improving patient outcomes.


1998 ◽  
Vol 9 (suppl e) ◽  
pp. 23E-26E
Author(s):  
Arne C Rodloff

The present paper evaluates the clinical trial program in lower respiratory tract infections treated with a new fluoroquinolone antibiotic, grepafloxacin. Unlike older quinolones, grepafloxacin has excellent activity against Gram-positive organisms, which includeStreptococcus pneumoniaeand “atypical” pathogensLegionellaspecies. MycoplasmapneumoniaeandChlamydia pneumoniae. Grepafloxacin has a long half-life of 12 to 15 h, which allows once daily dosing. Six studies have been conducted regarding community-acquired lower respiratory tract infections (LRTls), four about community-acquired pneumonia (CAP) and two about acute bacterial exacerbations of chronic bronchitis (ABECB) . In these studies, grepafloxacin demonstrated clinical equivalence with standard therapies. but, in patients with documented infections. grepafloxacin was statistically superior to amoxycillin in both CAP and ABECB. The new fluoroquinolone has a good safety profile, comparable with that of ciprofloxacin. The most common adverse effects of grepafloxacin were nausea and a metallic taste; however, these effects resulted in only a few discontinuations of therapy. With the increasing prevalence of resistance in pathogens isolated from community-acquired LRTIs, grepafloxacin offers a good alternative for monotherapy in these patients.


Critical Care ◽  
2010 ◽  
Vol 14 (3) ◽  
pp. R106 ◽  
Author(s):  
Philipp Schuetz ◽  
Marcel Wolbers ◽  
Mirjam Christ-Crain ◽  
Robert Thomann ◽  
Claudine Falconier ◽  
...  

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