Liu N, et al. - Among patients undergoing recovery from an acute exacerbation of chronic obstructive pulmonary disease (AECOPD), researchers investigated silent aspiration by using radionuclide imaging. They also determined how silent aspiration in COPD patients was influenced by exercise-induced dyspnoea. In addition to the aforementioned cases, this study included healthy volunteers of similar age. According to the findings, significantly higher silent aspiration rates were reported in recovering AECOPD patients vs healthy volunteers of similar age. No strong evidence was gained indicating increased aspiration rate among patients with exercise-induced dyspnoea.