Jurnal Internasional Aprika vol.12 issue 3 2022
African Journal of Emergency Medicine
After-hour trauma-radiograph interpretation in the emergency centre of a District Hospital

Jurnal Internasional Aprika vol.12 issue 3 2022
African Journal of Emergency Medicine
After-hour trauma-radiograph interpretation in the emergency centre of a District Hospital

Plain films X-rays Trauma imaging Fracture detection Missed fracture

Introduction: Plain radiographs remain a first-line trauma investigation. Most trauma radiographs worldwide are reported by junior doctors. This study assesses the accuracy of after-hour acute trauma radiograph reporting by emergency centre (EC) doctors in an African district hospital. Methods: An institutional review board approved retrospective descriptive study over two consecutive weekends in February 2020. The radiologist report on the admission radiographs of adult trauma patients was compared with the initial EC interpretation. The accuracy, sensitivity, specificity, positive predictive value (PPV) and neg- ative predictive value (NPV) for EC interpretation were calculated with 95% confidence intervals (95%CI). The association between reporting accuracy and anatomical region, mechanism of injury, time of investigation, and the number of abnormalities per radiograph was assessed. Results: 140 radiographs were included, of which 49 (35%) were abnormal. EC doctors recorded (95%CI) 77% (69-84%) accuracy, 38% (25-54%) sensitivity, 97% (91-99%) specificity, 86% (65-95%) PPV and 76% (71-80%) NPV. Performance was associated with the anatomical region (p = 0.02), mechanism of injury (p = < 0.01) time of day (p = 0.04) and the number of abnormalities on the film (p = < 0.01). The highest sensitivity was achieved in reports of the appendicular skeleton (42%) and in the setting of simple blunt trauma (62%). Overall accuracy was in line with the range (44%-99%) reported in the international literature. Discussion: Accurate reporting of acute trauma radiographs is challenging. Key factors impact performance. Further training of junior doctors in this area of clinical practice is recommended. Future work should focus on assessing the impact of such training on reporting performance.

Yi-Ying Melissa Liu, Suzanne O’Hagan , Frederik Carl Holdt , Sa’ad Lahri , Richard Denys Pitcher

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11 April 2022

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