Quiz-Narrow complex tachycardia

Here is a short quiz on narrow QRS complex tachycardia.Questions range from easy to difficult as you progress through. QUIZ Second most common narrow complex tachycardia (NCT)? 95% of AVRT is of which type —– Three or more different P wave morphologies, with associated irregular PR and R–R intervals are diagnostic of  ? For differentiatingContinue reading “Quiz-Narrow complex tachycardia”

Chloroquine and arrhythmia

Dear friends, Now as US FDA has issued an emergency use authorization to allow hydroxychloroquine and chloroquine used for certain hospitalized patients with COVID-19, it is useful to know some risk predictors in those using drug in view of its much debated pro-arrhythmic potential. American college of cardiology has recently published an article regarding same.Continue reading “Chloroquine and arrhythmia”

Triadin knockout syndrome

Triadin Knockout syndrome New cause of recessive genetic LQTS Presents before 5 years of age sudden cardiac arrest common Beta blockers no use ECG show symmetric inversion in anterior leads +/- Qt prolongation These may be the genotype negative cases of CPVT Triadin links calsequestrin, ryanodine receptor and junctophilin to L type calcium channel inContinue reading “Triadin knockout syndrome”

ABC-VT score

A new score to help predict adverse events in patients with frequent premature ventricular contractions (PVCs). In the study predictors of adverse remodeling were: non-sustained VT) (odds ratio [OR], 5.3) longer PVC coupling interval of at least 500 ms (OR, 4.7) PVC burden (OR, 4.4 for >20%; OR, 3.5 for 10% to 20%) Superiorly directed PVC axisContinue reading “ABC-VT score”

Pin pointing the pathway !

I’m sure that for many budding cardiologists including me, diagnosing accessory pathway based on surface ECG has been herculean task. Neverthless i have seen people doing it with ease, may be fruits of their hard work Recently i found an article mentioning pathway localisation after atrial pacing during EP study.Amazingly it works well on surfaceContinue reading “Pin pointing the pathway !”

ECG in Ebsteins anomaly

“Most of chd children dont look sick, but the scars on their chest are real .They are battle scars, the scars of their fight to live” anonymous Ecg is almost never normal in ebsteins anomaly of the heart.The range of anomalies include the following,The PQRST way P wave -right atrial enlargement is almost always seenContinue reading “ECG in Ebsteins anomaly”

Exercise ECG aka “TMT test”

When not to do? Treadmill and cardiology have an evergreen affair.Treadmill is known to give the user not just an exemplary cardiac fitness ,but diagnose serious heart diseases.But what if treadmill can lead to death!! yes it can sometimes… Exercise ecg testing is quite popular in clinical cardiology for more than 50 years.It can beContinue reading “Exercise ECG aka “TMT test””