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Chest x-ray has lower sensitivity for detecting thoracic injury in children exposed to blast
U.K.: Chest CT is better than chest X-ray (CXR) for identifying blast injuries in children exposed to blast, a recent study in the journal Injury has revealed.
The study found that for identifying significant thoracic Injury in children who have experienced blast injuries, chest X-ray has a poor sensitivity necessitating a low threshold for C.T. chest use for such patients.
Paediatric thoracic trauma is not common in civilian practice. It is dominated by a blunt mechanism of Injury (MOI). Still, it is common in war and is a significant cause of mortality and morbidity in children exposed to blast injury. These injuries must get recognized in the early stages. Several studies have investigated the sensitivity of chest X-rays for chest injury detection in blunt trauma, but none have evaluated its performance in pediatric blast injury.
Against the above background, Will Sargent and Iain Gibb from the Centre for Blast Injury Studies in Imperial College London, London, UK, compared CXR findings to the 'gold standard computed tomography (C.T.) for detecting significant thoracic injuries among 103 children who got injuries from the blast and presented to a U.K. Role 3 Hospital at Camp Bastion in Afghanistan during the conflict in Afghanistan from 2011-2013.
Significant thoracic injuries were defined as haemothorax, pneumothorax, great vessel or aortic Injury, ruptured diaphragm, two or more rib fractures, sternal fracture, pulmonary contusion, and penetrating fragments.
The study led to the following findings:
· CXR's sensitivity for the detection of significant injuries was: subdermal metallic fragments 75%, haemothorax 40%, blast lung 80%, laceration 100%, contusion 44%, and pneumothorax 43%.
· CXR missed all cases of ≥2 rib fractures, diaphragm injury, pleural effusion, and clavicle fracture, although the numbers of each were small.
· Specificity for chest X-ray injury detection was 93% for the fragment and 94% for contusion, and 100% otherwise.
· The Specificity and sensitivity of chest X-ray for the identification of an abnormality that would prompt C.T. imaging were 82% and 72%.
"The findings stress that chest computed tomography is still the better modality for the evaluation of children injured in war conflict," the authors wrote.
The authors argued that there should be a low threshold for using chest C.T. in evaluating children exposed to blasts, given the challenge of injured children's clinical assessment and the prospective for severe adverse consequences of missed thoracic injuries.
Reference:
The study "The sensitivity of chest x-ray (CXR) for the detection of significant thoracic injury in children exposed to blast" was published in Injury, International Journal of the Care of the Injured.
DOI: https://doi.org/10.1016/j.injury.2022.12.001
MSc. Biotechnology
Medha Baranwal joined Medical Dialogues as an Editor in 2018 for Speciality Medical Dialogues. She covers several medical specialties including Cardiac Sciences, Dentistry, Diabetes and Endo, Diagnostics, ENT, Gastroenterology, Neurosciences, and Radiology. She has completed her Bachelors in Biomedical Sciences from DU and then pursued Masters in Biotechnology from Amity University. She has a working experience of 5 years in the field of medical research writing, scientific writing, content writing, and content management. She can be contacted at  editorial@medicaldialogues.in. Contact no. 011-43720751
Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751