How sensitive is S1Q3T3?

The S1Q3T3 pattern had a sensitivity of 35%, specificity of 90%, and diagnostic accuracy of 63%, with positive and negative predictive values of 78% and 59%, respectively. Diagnostic sensitivity and specificity of standard electrocardiogram (ECG) in acute pulmonary embolism (APE) are low.

What is the usual cause of death from pulmonary embolism?

The mortality in patients with undiagnosed pulmonary embolism is 30%. In the PIOPED study, the 1-year mortality rate was 24%. The deaths occurred due to cardiac disease, recurrent pulmonary embolism, infection, and cancer.

What does electrical alternans indicate?

Electrical alternans. This electrocardiogram shows ventricular tachycardia from the right ventricular outflow tract (RVOT) region. Note the R wave alternans seen in the wide QRS complexes. The presence of micro-T wave alternans may indicate a higher risk of sudden cardiac death and spontaneous ventricular arrhythmias.

What is the best diagnostic test for pulmonary embolism?

Pulmonary angiogram It’s the most accurate way to diagnose pulmonary embolism, but because it requires a high degree of skill to administer and has potentially serious risks, it’s usually performed when other tests fail to provide a definitive diagnosis.

How is a PE detected?

CT (computed tomography) scan or CT angiogram. These tests might be done to look for pulmonary embolism or for a blood clot that may cause it. Magnetic resonance imaging (MRI). This test may be used to view clots in the lungs.

What are the odds of dying from a pulmonary embolism?

If untreated, acute PE is associated with a significant mortality rate (as high as 30%), whereas the death rate of diagnosed and treated PE is 8%. Up to 10% of acute PE patients die suddenly….TABLE 1.

Clinical presentation of acute pulmonary embolism Mortality rate
With cardiogenic shock 25% to 30%
With resuscitation 65%