Ultrasound GEL
Early Systolic Notching Part 2
Aug 30, 2021
The podcast discusses the effectiveness of early systolic notching as a marker for pulmonary embolism, exploring a prospective study's findings. They highlight the diagnostic accuracy and significance of this marker in detecting proximal obstruction in the pulmonary arteries, comparing its specificity with other diagnostic methods. The hosts review diverse patient cases and emphasize the need for further research to establish a definitive marker for PE assessment.
15:55
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Quick takeaways
- Early systolic notching has high specificity (97%) but low sensitivity (34%) in detecting pulmonary embolism.
- The study highlights the need for further research on early systolic notching's predictive value in different patient populations.
Deep dives
Diagnostic Accuracy of Early Systolic Notching in Pulmonary Embolism
The podcast discusses a study published in the Journal of Ultrasound and Medicine in May 2021, analyzing the diagnostic accuracy of early systolic notching in pulmonary embolism. Early systolic notching is evaluated using pulse wave doppler to detect proximal obstruction in the pulmonary arteries, indicating a specific waveform characteristic. The study included 183 patients from academic emergency departments with suspected PE, showing that early systolic notching had a specificity of 97% but a low sensitivity of 34% for detecting PE.
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