COVID‐19‐associated pulmonary aspergillosis (CAPA) is a recently recognized entity associated with the COVID‐19 pandemic and known post‐viral pneumonia complications. More data are awaited and there has been a recent consensus criteria published hoping to generate more research and registries to inform clinical decision‐making. Nevertheless, it is clear that CAPA imposes a worsening disease course of COVID‐19 pneumonia with added morbidity and mortality. We present two cases with differing outcomes managed within the limitations of our institute and make reference to the recent consensus criteria. We hope to highlight the importance of considering empirical treatment in the correct clinical context while awaiting the results of microbiological workup as ascertaining the diagnosis of proven CAPA is challenging in the real‐world setting.
Introduction: Pleural fluid adenosine deaminase (pfADA) is a simple, rapid and inexpensive surrogate marker for tuberculous pleural effusion (TPE). A nationwide cut-off of 40 U/L is currently used based on overseas data. There is a need to optimise the diagnostic utility of pfADA by establishing a local cut-off value. In this study, we aimed to describe the demographics and clinical characteristics of patients with TPE and non-TPE; determine the sensitivity and specificity of current pfADA of 40 U/L; and establish a new local pfADA cut-off for TPE. Methods: We conducted a single-centre, observational, prospective study of patients with exudative pleural effusion and pfADA measured from 1 October 2019 to 30 April 2020 at Queen Elizabeth Hospital, Malaysia. Results: The diagnosis of analysed patients ( n = 93) included TPE ( n = 41), malignancy ( n = 28), parapneumonic effusion ( n = 12) and other causes ( n = 12). The mean pfADA was 51.15 U/L (standard deviation (SD) = 13.77) among TPE group and 18.86 U/L (SD = 12.33) among non-TPE. When analysis was restricted to TPE patients, the local pfADA cut-off is 29.6 U/L, with a sensitivity of 97.6% and specificity of 90.4%. The current pfADA of 40 U/L has a sensitivity of 87.8% and specificity of 92.3%. Conclusion: We established a local pfADA cut-off of 29.6 U/L for TPE. Optimising the utility of pfADA helps to enhance clinicians’ treatment confidence of TPE when initial work-up is inconclusive.
Pulmonary artery pseudoaneurysm is a differential diagnosis to be considered in COVID-19 patients presenting with or developing haemoptysis in order to facilitate early recognition as delayed management could be catastrophic https://bit.ly/3rQTrDT
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