Subha L. Varahan, M.D.
Posted on March 3rd, 2017
SVT (supraventricular tachycardia) is a general classification of heart rhythm issues that occur in the upper part of the heart (the atria). As with other heart rhythms, SVTs occur because of a disruption in the heart’s normal electrical rhythm. Symptoms may include heart palpitations, light-headedness, dizziness, shortness of breath, fatigue, or passing out.
Atrial fibrillation (AFib) is... Read More
Posted on December 5th, 2016
In November, physicians at the Heart Rhythm Institute at the Oklahoma Heart Hospital became the first in the state of Oklahoma to use His-bundle pacing (HBP).
His-bundle pacing uses the same pacemaker as in a typical pacemaker placement, but utilizes a specialized screw-in lead placed in the His bundle rather than in the right ventricle. The His bundle is a bundle of cardiac fibers... Read More
Posted on September 15th, 2016
Premature ventricular contractions are extra beats that occur in the lower chambers of the heart, or ventricles. Patients often describe them as feeling like a very hard heartbeat followed by a missed beat, or like a fluttering or pounding in their chest. While not typically life-threatening on their own, frequent premature ventricular contractions can affect the heart’s overall function if... Read More
Posted on September 8th, 2016
Premature ventricular contractions, or PVCs, are a type of heart palpitation where extra beats originate in the bottom chambers of the heart, or ventricles. Single extra beats are called premature ventricular contractions. When multiple extra beats happen together, it becomes non-sustained ventricular tachycardia or ventricular tachycardia.
Many patients describe their PVCs as feeling a really... Read More