Adherence to GOLD guidelines in real-life COPD management in the Puglia region of Italy.

Background: COPD is a disease associated with significant economic burden. It was reported that Global initiative for chronic Obstructive Lung Disease (GOLD) guideline-oriented pharmacotherapy improves airflow limitation and reduces health care costs. However, several studies showed a significant dissociation between international recommendations and clinicians' practices. The consequent reduced diagnostic and therapeutic inappropriateness has proved to be associated with an increase in costs and a waste of economic resources in the health sector. The aim of the study was to evaluate COPD management in the Puglia region. The study was performed in collaboration with the pulmonology centers and the Regional Health Agency (AReS Puglia). Methods: An IT platform allowed the pulmonologists to enter data via the Internet. All COPD patients who visited a pneumological outpatient clinic for the first time or for regular follow-ups or were admitted to a pneumological department for an exacerbation were considered eligible for the study. COPD's diagnosis was confirmed by a pulmonologist at the moment of the visit. The project lasted 18 months and involved 17 centers located in the Puglia region. Results: Six hundred ninety-three patients were enrolled, evenly distributed throughout the region. The mean age was 71±9 years, and 85% of them were males. Approximately 23% were current smokers, 63% former smokers and 13.5% never smokers. The mean post-bronchodilator forced expiratory volume in 1 second was 59%±20% predicted. The platform allowed the classification of patients according to the GOLD guidelines (Group A: 20.6%, Group B: 32.3%, Group C: 5.9% and Group D: 39.2%), assessed the presence and severity of exacerbations (20% of the patients had an exacerbation defined as mild [13%], moderate [37%] and severe [49%]) and evaluated the appropriateness of inhalation therapy at the time of the visit. Forty-nine percent of Group A patients were following inappropriate therapy; in Group B, 45.8% were following a therapy in contrast with the guidelines. Among Group C patients, 41.46% resulted in triple combination therapy, whilê14% of Group D patients did not have a therapy or were following an inappropriate therapy. In conclusion, 30% of all patients evaluated had been following an inadequate therapy. Subsequently, an online survey was developed to inquire about the reasons for the results obtained. In particular, we investigated the reasons why 30% of our population did not follow the therapy suggested by the GOLD guidelines: 1) why was there an excessive use of inhaled corticosteroids, 2) why a significantly high percentage was inappropriately treated with triple therapy and 3) why a consistent percentage (11%) of Group D patients were not treated at all. Conclusion: The data provides an overview on the management of COPD in the region of Puglia (Italy) and represents a resource in order to improve appropriateness and reduce the waste of health resources.

Microsatellite alterations and cell-free DNA analysis: could they increase the cytology sensitivity in the diagnosis of malignant pleural effusion?

BACKGROUND: The exact diagnosis of malignant pleural effusions (PE) is difficult and often requires combined procedures, because the cytological examination of pleural fluid does not detect tumoral cells in 40% of malignant effusion cases. The aim of this study was to analyze microsatellite alterations (MA) in malignant PE and to determine their diagnostic value as an additional test to cytological examination. The increase in cell-free DNA levels was also evaluated as a signal of probable malignancy. METHODS: A total of 84 patients with PE were enrolled and underwent PE and whole blood and exhaled breath condensate analyses. Free DNA was measured by spectrophotometer analyses. DNA was extracted from all samples and analyzed for MA, using the microsatellite markers at chromosomes 3p, 12p, 5q, and 17p. RESULTS: The microsatellite analysis of PE exhibited a higher percentage of alterations in malignant PE than in benign PE. In addition to this, cell-free DNA in PE was seen to be significantly more elevated in malignant than in benign PE. The sensitivity of the sole cytology increased considerably when patients showed at least one MA or DNA>4 ng/µL in the PE. CONCLUSION: In conclusion, it was seen that the combination of the cytological examination with microsatellite analyses and cell-free DNA in pleural fluid could increase the sensitivity of the diagnosis in patients with PE who have a suspected malignancy, obviating the need for other invasive diagnostic procedures.