Troponin elevation in supraventricular tachycardia: primary dependence on heart rate

Naïm Ben Yedder, Jean Francois Roux, Felix Ayala Paredes
Canadian Journal of Cardiology 2011, 27 (1): 105-9

BACKGROUND: It is known that some patients with supraventricular tachycardia (SVT) could have increased troponin levels without coronary artery disease.

OBJECTIVES: To compare the cardiovascular risk of patients admitted with SVT with troponin T elevation (T+ patients) versus those without (T- patients), to determine if the rise in troponin levels could be predicted, and to identify the right approach in T+ patients.

METHODS: Retrospective database search of patients with SVT from 2002 to 2007 either with or without troponin T elevation at admission.

RESULTS: Of the 73 study patients, there were 24 (32.9%) T+ patients and 49 (67.1%) T- patients. All except 5 T+ patients underwent either a stress test/MIBI or a coronary angiogram. Two noninvasive tests were positive and only 1 patient needed an angiogram and percutaneous coronary intervention; none of the other angiograms triggered any further treatment. Of the 49 T- patients, 11 had a noninvasive stress test; none of these tests was positive or triggered any further treatment. Compared with that of T- patients, the maximum heart rate was significantly higher in T+ patients (190.8 versus 170.3 beats per minute, P = .008). A correlation was found between the maximal heart rate during SVT and the level of troponin elevation (r = 0.637, P = .001).

CONCLUSIONS: SVT could be associated with a troponin elevation without any severe coronary artery disease. In most patients, either conservative management or noninvasive stratification seems to be sufficient; an invasive strategy could then be reserved only for high-risk patients who tested positive. The only clinical variable correlated with the troponin rise was a higher maximal heart rate during the SVT episode.

Full Text Links

Find Full Text Links for this Article


You are not logged in. Sign Up or Log In to join the discussion.

Related Papers

Remove bar
Read by QxMD icon Read

Save your favorite articles in one place with a free QxMD account.


Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"

We want to hear from doctors like you!

Take a second to answer a survey question.