The 'frozen leaflet sign' on chest X-ray correlates with thrombotic prosthetic valve obstruction and may enable early suspicion of this life-threatening condition.
Can the 'frozen leaflet' sign on routine chest radiography aid in the early suspicion of prosthetic valve obstruction?
The 'frozen leaflet' sign on routine chest radiography may provide an early, incidental clue for diagnosing life-threatening prosthetic valve obstruction.
Absolute Event Rate: 0% vs 0%
Abstract Prosthetic valve obstruction (PVO) is a life-threatening complication following mechanical valve replacement. Although transesophageal echocardiography, fluoroscopy, and CT angiography are established diagnostic modalities, findings on routine chest radiography (CXR) may occasionally provide valuable clues. We present a case of acute mitral PVO in which a linear radiopaque density across the prosthetic valve, observed on CXR and termed the "frozen leaflet" sign, correlated with the subsequent diagnosis of thrombotic leaflet immobilization. This case illustrates that recognition of this radiographic finding may aid in raising early suspicion of PVO, particularly when noted incidentally on initial imaging.
Bai et al. (Sun,) reported a other. The 'frozen leaflet sign' on chest X-ray correlates with thrombotic prosthetic valve obstruction and may enable early suspicion of this life-threatening condition.
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