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  • Title: [Myocardial contusions. Contribution of scintigraphy using thallium-201. A prospective series].
    Author: Hélias J, Daumy F, Nicolas F, Nicolas G.
    Journal: Arch Mal Coeur Vaiss; 1986 Jan; 79(1):69-74. PubMed ID: 3085612.
    Abstract:
    Traumatic myocardial contusion is observed in 15% of autopsy studies; however, it is much more difficult to detect in survivors. Thirty-two consecutive, unselected patients admitted to the intensive care unit for serious thoracic injuries, underwent Th 201 myocardial scintigraphy in 2 to 4 different projections, 2 to 13 days after admission. The results were interpreted double blind and considered positive when a zone of hypofixation creating a defect greater than 25% was observed. The results were correlated with daily ECG recordings, serum CPK MB levels and echocardiography. Thirteen patients (41%) had abnormal scintigraphy. Border line appearances in 1 case excluded any severe myocardial lesions. The other investigations (56%) were normal. These results did not correlate with the ECG or echocardiographic appearances but a significant relationship was found with serum CPK MB levels (p less than 0.05). Therefore, the first investigations did detect cardiac damage but were not specific for myocardial lesions. Thallium 201 myocardial scintigraphy is superior to other non-invasive investigations. It provides information as to the size of the lesion and, by repeated studies, can differentiate simple myocardial contusion from a true traumatic myocardial infarction.
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