Multiparametric Home Telemonitoring of Patients With Chronic Obstructive Pulmonary Disease Exacerbation

COPD, COPD Exacerbation Acute

Chronic obstructive pulmonary disease (COPD) exacerbations are risk factors for disease progression and short-term re- hospitalizations. We propose a randomized controlled trial to evaluate the efficacy of a one-device multiparameter telemonitoring in reducing functional decline, symptoms, and risk of re-hospitalization of patients discharged after hospitalization for exacerbated COPD.

Respiratory diseases such as asthma, chronic obstructive pulmonary disease (COPD), lung cancer, obstructive sleep apnea syndrome, pulmonary fibrosis and others are important causes of morbidity and mortality and have a substantial impact on healthcare costs. Furthermore, the Coronavirus-19 (COVID-19) pandemic has shown how respiratory complications are the most dangerous for infected subjects, as they can evolve into a severe pneumonia burdened by either subacute or chronic complications. Strict monitoring, early treatment initiation and timely hospitalization are fundamental to ameliorate short-term prognosis and reduce long-term sequelae of all acute respiratory conditions, including chronic obstructive pulmonary disease (COPD). Indeed, acute worsening of respiratory symptoms, called exacerbations, often occur during the course of the disease. COPD exacerbations are associated with an accelerated decline in respiratory function, and exacerbation frequency or intensity is a powerful predictor of future episodes and ultimate mortality which reaches as high as 50% at 5 years. Indeed, exacerbation frequency is the strongest single factor related to future exacerbations, and mortality rates increase 3-fold as exacerbation frequency increases from 0 to 3 or more per year. Recent data shown that 30-day readmission rate for COPD patients after discharge ranged from 22.6% to 24%, while 90-day readmission was 35.1% to 43% in different studies. Furthermore, severe COPD exacerbations resulting in hospitalization can be up to 60 times more expensive than mild or moderate exacerbations managed by primary care services. As a consequence, the medical community have launched numerous initiatives to reduce exacerbations, with a particular focus on reducing readmissions. These initiatives involve improving medication regimens and adherence, smoking cessation, pulmonary rehabilitation, assessments for oxygen supplementation and noninvasive ventilation, and close follow-up by clinicians following discharge. At the current state of things, patients discharged after an hospitalization for COPD exacerbation are followed-up through discrete, in-person, evaluation within one to three months. However, this timeframe is often not sufficient to identify clinical deterioration and the need for changes in the therapeutic strategy (e.g. switch of inhaler, counselling on the inhalation technique, need for oral add-on therapy) to avoid recurrence of symptoms and re-hospitalization. Nevertheless, there are no established programs to help medical doctors reduce COPD re-admissions. Since over two decades, telemedicine has been demonstrated effective in improving patients' health-related quality of life and in increasing the efficiency of care processes, but it has only recently been proposed as a strategy to reduce COPD readmission rate. Indeed, The COVID-19 pandemic has increased the awareness on the available systems for telemonitoring and favored the development of new ones. Telemonitoring is one major field of telemedicine which encompasses remote tracking of physiological parameters, either in real time or using store-and-forward technologies, allowing to screen for the patients who could benefit most of either home visits or hospitalization. Multiple devices have been made available for these purposes during the COVID-19 pandemic. We designed a randomized controlled trial to evaluate the ability of telemonitoring to avoid lung function decline, reduce symptoms and the risk of re-hospitalizations of patients discharged after a COPD exacerbation.

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