[Bacteriological analysis of more than 600 febrile urinary infections managed in a community health network]. / Analyse microbiologique de plus de 600 infections urinaires fébriles prises en charge dans un réseau de soin.

UNLABELLED: Community-acquired febrile urinary tract infections (UTI) in adult has received little attention in the literature. The objective of our study was to determinate the distribution of bacterial strains isolated from adults with community-acquired febrile UTI and antibiotic susceptibility patterns of Escherichia coli. PATIENTS AND METHOD: We studied the SPHERES's databank. SPHERES is a Parisian medical community network aimed at securing and facilitating the ambulatory management of potentially serious acute illnesses. Each patient is included in the network according to specific clinical criteria and standardized medical data are recorded. We retrospectively studied the medical records of all patients treated for a pyelonephritis or a prostatitis between April 2005 and October 2008. RESULTS: Five hundred and sixty-eight patients were enrolled: 410 women and 158 men. The overall bacteria's distribution was similar to that observed in previous strictly microbiological studies with a more prominent role of E. coli (87.5%) to the detriment of other species. The overall susceptibility of E. coli to antibiotics recommended in the empiric treatment of pyelonephritis and prostatitis was preserved: ciprofloxacin (95.8%), cefotaxime (98%), gentamicin (99.4%). In women over 65 years, the susceptibility of E. coli to systemic fluoroquinolones fell up 89.7%. This could affect the empiric oral treatment of pyelonephritis in older women. CONCLUSIONS: We report the bacterial distribution and the resistance pattern of bacteria implicated in febrile urinary infections diagnosed and treated in a health network. It seems that E. coli resistance increased more in women more than 65 years than in men.

Role of the mechanical impairment on the ventilatory response to CO2 in chronic airway obstruction.

The purpose of this study was to assess the relationship between the breathing pattern response to CO2 and the severity of mechanical impairment in twenty patients with COLD. The CO2 response was compared to that of a control group of twelve normal subjects. All patients had airway obstruction (FEV1 = 40 +/- 14% of predicted; means +/- SD) and hyperinflation (FRC = 154 +/- 23% of predicted). Tidal volume (VT), inspiratory and total cycle duration (TI, TT), occlusion pressure (P0.1) and endtidal PCO2 were measured at rest and during hyperoxic CO2 rebreathing. On the same day, in all patients, arterial blood gas analysis, spirometric and plethysmographic measurements were made. The slope (S) of the P0.1 response (SP 0.1) to increasing endtidal PCO2 was negatively correlated with airway resistance (r = -0.59; p less than 0.01). Although the flow response, S(VT/TI), was positively and closely correlated with SP 0.1 (r = 0.88; p less than 0.001), it also appeared to be independently influenced by obstruction (p less than 0.01). The tidal volume response, SVT, was principally correlated with inspiratory capacity (r = 0.90; p less than 0.001) and also, independently, with Vmax50 (p less than 0.01). SVT was diminished in seventeen patients, ten of whom only had a decreased S(VT/TI). The shortening in TI during hypercapnia was most marked in patients with the greatest S(P0.1), who did not have arterial hypercapnia at rest. These results suggest: that the poor VT response to CO2 in COLD patients is principally caused by a limitation in inspiratory volume expansion.(ABSTRACT TRUNCATED AT 250 WORDS)