article thumbnail

Identification of a novel NKX2-5 variant in a young Ecuadorian patient with atrioventricular block and bradycardia: a case report

Frontiers in Cardiovascular Medicine

Among congenital heart diseases (CHDs), atrioventricular (AV) block is included. Notably, the transcription factor NKX2-5 plays a crucial role in heart development and function, and mutations in this gene have been linked to bradycardia and AV block. Furthermore, by performing NGS, a missense variant, p.(Tyr274Ser)

article thumbnail

9 Things to Monitor When Taking Medication for Congenital Heart Disease (CHD)

Conquering CHD

Blood Pressure Many medications used to treat congenital heart disease can affect blood pressure levels. A rapid heartbeat (tachycardia) can increase the workload on your heart, while a slow heartbeat (bradycardia) can cause fatigue and dizziness. Here are some key things for you and your healthcare team should keep an eye on: 1.

article thumbnail

Torsade in a patient with left bundle branch block: is there a long QT? (And: Left Bundle Pacing).

Dr. Smith's ECG Blog

Discontinue all negative chronotropic agents, since the risk of torsade is much higher with bradycardia or pauses. It should be kept in mind that on occasions, beta-one agonist can result in increased ventricular ectopy e.g., in severe myocardial ischemia (by increasing myocardial demand), or sometimes with congenital long-QT syndrome.

article thumbnail

Ventricular Tachycardia Management

All About Cardiovascular System and Disorders

Classical example of polymorphic ventricular tachycardia is torsade de pointes associated with congenital or acquired QT interval prolongation. Polymorphic VT is managed by intravenous magnesium and measures to increase heart rate like pacing as it occurs most often in the setting of bradycardia and QT interval prolongation.

article thumbnail

QT Correction Formulas Compared to The Rule of Thumb ("Half the RR")

Dr. Smith's ECG Blog

The rule of thumb is less accurate, and the risk is higher because a long QT in the presence of bradycardia ("pause dependent" Torsades) predisposes to Torsades. 6) Use a different rule of thumb for bradycardia : Manually approximate both the QT and the RR interval. 3) At heart rates below 60, far more caution is due.

article thumbnail

Why is ECG machine use? What diseases can EKG monitor detect?

Wellnest

A fast heartbeat is called tachycardia, while a slow heartbeat is called bradycardia in medical terms. Hypoplastic left heart syndrome is a common congenital heart defect in which there is a problem with the heart's blood supply, and the left side of the heart does not develop correctly.

article thumbnail

This was texted to me in real time. The patient has acute chest pain.

Dr. Smith's ECG Blog

Instead — my thoughts were as follows: The rhythm is sinus , with marked bradycardia and a component of sinus arrhythmia. If not HCM — some unusual form of cardiomyopathy might explain the findings in today's ECG (ie, muscular dystrophy; infiltrative heart disease from amyloid or sarcoid; some unusual form of congenital heart disease, etc. ).