Diagnosing poststernotomy mediastinitis in the ED

The American Journal of Emergency Medicine
Jan J van WingerdenBas A de Mol

Abstract

Poststernotomy mediastinitis (PSM), the severe chest wall and mediastinal infection that may arise at any time after a sternotomy, causes significant morbidity and mortality globally. Late recognition and diagnosis are the major contributors to a poor outcome. This review focuses on recent advances in diagnosing PSM (particularly after cardiovascular surgery) at the earliest opportunity--in the emergency department. Morbidity and mortality of PSM, especially when associated with numerous other complications, remain unaltered high. Careful history taking and clinical examination remain the mainstays of a preliminary diagnosis. No specific signs are indicative of PSM alone. Procalcitonin as a biomarker and neutrophil volume distribution width obtained during a complete blood count with differential, assessed in the clinical context, offer interesting prospects of obtaining a speedy and accurate diagnosis. Adjunctive diagnostic imaging modalities such as contrast-enhanced computed tomography can differentiate PSM from postcardiac injury syndrome and other causes of vague chest pain some time after sternotomy with increasing accuracy. The speed and accuracy of diagnosing PSM have improved with recent advances in imaging and laborat...Continue Reading

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