Q; What is the significance of increased Troponin in Pulmonary Embolism?

Answer: 

In acute pulmonary embolism, troponins probably rise because of acute right heart overload. The release is of shorter duration than in unstable angina, and the peak level is linked to the outcome.

References:

1. Müller-Bardorff M, Weidtmann B, Giannitsis E, et al. Release kinetics of cardiac troponin T in survivors of confirmed severe pulmonary embolism. Clin Chem. 2002; 48: 673–675.

2. Giannitsis E, Müller-Bardorff M, Kurowski V, et al. Independent prognostic value of cardiac troponin T in patients with confirmed pulmonary embolism. Circulation. 2000; 102: 211–217