troponin I


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Related to troponin I: Troponin T

troponin I

Cardiology A contractile protein that ↑ in serum after myocardial necrosis; it is a sensitive and specific marker of acute MI, and better than CK-MB as a cardiac injury marker Indications Acute, recent, or perioperative MI, cardiac contusion, heart allograft rejection, assessment of side-branch occlusion during coronary revascularization procedures or thrombolysis. See Myocardial infarction. Cf Surrogate marker.

troponin I

A protein that is released into the blood by damaged heart muscle (but not skeletal muscle), and therefore is a highly sensitive and specific indicator of recent myocardial infarction.
See also: troponin
References in periodicals archive ?
A massive bilateral pulmonary embolus was seen on CT scan in 36% of patients with troponin I values above 0.
A comparative study of cardiac troponin I and troponin T release in the early phase after myocardial infarction.
Except where cardiac troponin is measured in the setting of an obvious acute ischemic event the interpretation of increased troponin concentrations can pose a substantial diagnostic challenge to clinicians.
While troponin I appears to be more accurate, these data are based on the results of a single relatively small study and should be interpreted with caution.
The Randomized Assessment of Treatment using Panel Assay of Cardiac markers (RATPAC) trial randomly assigned patients to standard assessment including serial troponin testing or point of care testing for CKMB, myoglobin, and troponin I on arrival and at 90 min (37).
Circulating cardiac troponin I in severe congestive heart failure.
These findings suggest that high serum levels of troponin I may be a good way to identify patients who have a pulmonary embolism (PE) and could benefit from aggressive throm-bolysis, Dr.
In accordance with guideline-recommendations (3-5), several laboratories have implemented sex-specific ranges for cardiac troponin I (cTnl).
In a study with 126 asymptomatic patients on dialysis, a rise in their serum level of troponin I was linked with an increased risk of coronary events during the subsequent year, Dr.