Identification and diversity of multiresistant Corynebacterium striatum clinical isolates by MALDI-TOF mass spectrometry and by a multigene sequencing approach.

Background: The genus Corynebacterium is composed of gram-positive bacteria that are widely distributed throughout the environment; these bacteria are also part of the normal microbiota of human skin and mucous membranes. Multiple studies have shown that species of this genus, including C. striatum, become pathogenic to humans under special conditions.

Effectiveness of pulmonary rehabilitation in reducing health resources use in chronic obstructive pulmonary disease.

Objective: To determine the effectiveness of a multidisciplinary, outpatient pulmonary rehabilitation (PR) program in patients with severe and very severe chronic obstructive pulmonary disease (COPD). PR is recommended in advanced COPD, but there is limited evidence on the effectiveness of PR in reducing health care resources when applied in outpatients.

Design: Before and after intervention, a prospective research trial of patients enrolled in a PR program.

Set-up and pilot of a population cohort for the study of the natural history of COPD and OSA: the PULSAIB study.

Aims: We describe the set-up of a population-based study focussed on respiratory conditions, and describe a pilot study - the PULmons SAns Illes Balears (PULSAIB) study - aimed at investigating the natural history of COPD, obstructive sleep apnoea (OSA), and other common chronic diseases.

Methods: A cross-sectional study was designed to survey two fieldwork areas, one rural and one urban, in the Balearic Islands, Spain. Tests conducted included a questionnaire, spirometry with post-bronchodilator (PBD) test, and portable respiratory polygraphy.

Prognosis of COPD patients requiring frequent hospitalization: role of airway infection.

Rationale: A subgroup of patients with chronic obstructive pulmonary disease require frequent hospitalization because of exacerbations of the disease. We hypothesized that airway infection by non-usual pathogens is a major factor driving hospitalization needs in these patients.

Objectives: 1) To describe the clinical and functional characteristics of a cohort of COPD patients requiring > or =2 hospitalizations per year; 2) to determine prospectively their microbiological pattern during exacerbations; and, 3) to analyze the prognostic value of several clinical, functional and microbiological variables with respect to hospitalizations and mortality.

Nosocomial outbreak of Corynebacterium striatum infection in patients with chronic obstructive pulmonary disease.

We describe an unusual cluster of Corynebacterium striatum infections in 21 patients with chronic obstructive pulmonary disease (COPD) admitted to a medium-size respiratory unit. Eleven isolates from eight patients occurred simultaneously within a month. C.