Telemonitoring interventions ranging from simple telephone follow-up to daily telemonitoring of physiological or symptom scores, to more complex telemonitoring interventions with greatly enhanced clinical support; have been evaluated in patients with COPD. A Cochrane Review found that telehealth may have an impact on quality of life and emergency attendances in COPD, however, further research is needed to clarify its precise roles, as to date trials have included telecare as part of more complex packages (McLean 2011)[evidence level I). The positive effect of telemonitoring seen in some trials could thus be due to enhancement of the underpinning clinical service rather than to the telemonitoring communication.
Pinnock et al separated the effects of telemonitoring from the effects of existing services by adding telemonitoring alone to background self-management and clinical support in the usual care group. Adults registered with general practices in Scotland who had been admitted to hospital with an exacerbation of COPD in the previous year and who were thus at risk of future admissions were randomised to telemonitoring or usual care. All participants received self-management advice—education on self-management of exacerbations reinforced with a booklet, a written management plan, and an emergency supply of antibiotics and steroids, integrated within the standard clinical care service for the region. The telemonitoring package consisted of touch screen operated daily questionnaires about symptoms and drug use, with an instrument to measure oxygen saturation. Data were transmitted daily by an internet connection to the clinical monitoring team, which contacted patients whose score reached a validated threshold. Algorithms, based on the symptom score, alerted the clinical monitoring team if daily readings had not been submitted or if a high symptom score had been recorded. Clinicians responded by advising rescue drugs, a home visit, admission to hospital, or further review. Intervention fidelity was high. After 12 months, no difference was seen in hospital admissions for COPD between the two groups (hazard ratio 0.98, 95% confidence interval 0.66 to 1.44). Furthermore, no differences were seen in health related quality of life, anxiety or depression, self-efficacy, knowledge, or adherence to drugs. This trial suggested that the addition of telemonitoring to the management of high risk patients, over and above the backdrop of self-management education and a good clinical service, is costly and ineffective (Pinnock 2013) [evidence level II). These findings are in agreement with a 2011 systematic review of telemonitoring, which suggested that in the absence of other care packages the benefit of telemonitoring is not yet proven and that further work is required before its wide-scale implementation (Bolton 2011). A systematic review (Gregersen 2016) examined the effects of telehealth on quality of life in COPD. Of 18 suitable studies found, only three demonstrated significant improvements in quality of life as a consequence of a telehealth intervention.
In contrast to the above studies, Segrelles et al., demonstrated that telehealth monitoring with daily tele- transmission of indices from home, including self-recorded oxygen saturation and peak expiratory flow rate (PEFR), by subjects with severe LTOT dependent COPD, with monitoring for pre-determined ‘red flag’ deteriorations in indices by nurses, was associated with an approximate halving of emergency room visits, admissions, and hospital bed days (Segrelles Calvo 2014) [evidence level II]. Similarly, in a prospective randomised controlled study from Taiwan where 106 patients were randomised to usual care (including telephone calls) or telemedicine which involved accessing a website to record a range of daily variables with clinician access and intervention depending upon certain “flags”, time to readmission was significantly greater in the telemedicine group (p=0.026) (Ho 2016).< Prev Next >