Ventricular Ectopic QRS Interval May Be Useful Post-MI Marker

Share this content:
Ventricular Ectopic QRS Interval May Be Useful Post-MI Marker
Ventricular Ectopic QRS Interval May Be Useful Post-MI Marker

MONDAY, June 6, 2016 (HealthDay News) -- The ventricular ectopic QRS interval (VEQSI) can identify post-myocardial infarction (MI) patients with prior serious ventricular arrhythmia, according to a study published online June 1 in JACC: Clinical Electrophysiology.

Rachel Bastiaenen, Ph.D., from St. George's University Hospitals NHS Foundation Trust in London, and colleagues analyzed 12-lead Holter recordings from 189 patients with previous MI: 38 with prior life threatening events (MI-VT/VF) and 151 without prior significant ventricular arrhythmia (MI-no VT/VF). Results were compared with those from 60 healthy controls. All ventricular ectopic beats (VEB) were reviewed; the duration of the longest VEB was recorded as VEQSI max.

The researchers found that VEQSI max was longer in post-MI patients than healthy controls, and in MI-VT/VF patients with prior life threatening events than in MI-no VT/VF patients without prior life threatening events (both P < 0.001). VEQSI max was established as the strongest independent marker for prior serious ventricular arrhythmia in multivariate analysis. For identifying patients with prior life threatening events, VEQSI max >198 ms had 86 percent sensitivity, 85 percent specificity, 62 percent positive predictive value, and 96 percent negative predictive value (odds ratio, 37.4).

"This may be a useful additional index for risk stratification in ischemic heart disease," the authors write.

One author disclosed financial ties to Boston Scientific and Medtronic; Boston Scientific partially funded the study.

Full Text (subscription or payment may be required)

Share this content:

is free, fast, and customized just for you!

Already a member?

Sign In Now »


Sign up for myCME e-newsletters


Drug Lookup

Browse drugs by: BrandGenericDisease

Trending Activities

All Professions

More in Home

ASCO: Moderate Activity Tied to Longer Survival in Advanced CRC

ASCO: Moderate Activity Tied to Longer Survival in ...

Patients only appeared to derive benefit from moderate -- not vigorous -- activity

Number of Infants Born to Women Using Opioids Up Sharply

Number of Infants Born to Women Using Opioids ...

Few treatment programs deal with substance abuse in expectant moms, federal report says

Hypertension Onset After Age 80 May Protect Against Dementia

Hypertension Onset After Age 80 May Protect Against ...

Association independent of antihypertensive medication use

is free, fast, and customized just for you!

Already a member?

Sign In Now »