Analysis of volatile organic compounds (VOCs) in exhaled breath is of increasing interest in the diagnosis of lung infection. Over 2,000 VOCs can be detected through gas chromatography and mass spectrometry (GC-MS); patterns of VOC detected can offer information on chronic obstructive pulmonary disease, asthma, lung cancer and interstitial lung disease. Unfortunately, GC-MS while highly sensitive cannot be done at the bedside and at best takes hours to prepare samples, run the analysis and then interpret the results.
Compared with other methods of breath analysis, ion mobility spectrometry (IMS) offers a tenfold higher detection rate of VOCs. By coupling an ion mobility spectrometer with a GC column, GC-IMS offers immediate twofold separation of VOCs with visualisation in a three-dimensional chromatogram. The total analysis time is about 300 seconds and the equipment has been miniaturised to allow bedside analysis.
The primary objective of this trial is to perform an GC-IMS metabolomic definition study in patients with clinical features consistent with pneumonia or chest infection to identify a signature of COVID-19 pneumonia in patients exposed to SARS-CoV-2, compared to unexposed patients or those without pneumonia. This would allow for the identification of biomarkers in breath that characterise COVID-19.
People who develop an Acute Kidney Injury (AKI) often have a poor prognosis and many go on to develop chronic kidney disease (CKD). The recognition that AKI and CKD are linked is recent and the molecular pathways that control the transition from acute injury to chronic disease are not well defined. Currently there are no specific treatments that reduce the risk of progressing to CKD after AKI.
Preliminary investigations (not yet published) suggest that AKI causes sustained activation of the endothelin (ET) system to the long-term detriment of renal and systemic haemodynamic function. These pilot data form the basis of our project that seeks to determine whether the ET system is active in patients with AKI and, thus, represents a potential target for therapeutic intervention.
KRAKIL aims to recruit altogether 100 patients from across the emergency department, acute medical unit and inpatient wards at the Royal Infirmary. 50 of which with AKI’s and 50 matched controls with normal kidney function. We will monitor their bloods and urine for 90 days and compare the data from between the two groups.
Diagnostics devices play an important part in the clinical assessment of a patient’s health and treatment. The purpose of the study is the evaluation of a new diagnostic platform developed by LumiraDx. The evaluation is focused around various biomarkers useful in the emergency settings.
Collection of venous and capillary blood samples for the evaluation of new diagnostic devices for cardiovascular conditions
TARGET CTCA is a joint venture between EMERGE and the cardiology research team aiming to recruit patients with suspected ACS across NHS Lothian and NHS Greater Glasgow and Clyde. The study aims to recruit 2270 participants. For further information, please contact the EMERGE team.