Direct transthoracic left ventricular puncture

Direct transthoracic left ventricular puncture is used to measure left ventricular pressure and to perform ventriculography in certain specific situations
If a patient has undergone both aortic and mitral valve replacement with mechanical prosthetic valves, retrograde arterial catheterisation and trans septal catheterisation is not possible
If catheterisation is attempted across tilting disc valves, it may result in catheter entrapment, valve occlusion or even dislodgement of the disc leading to embolisation

What is hsTnT?

hsTnT stands for high sensitivity troponin T. Troponin T is a protein in the heart muscle which can be released into the blood when there is damage to the heart muscle as in a heart attack. Even small quantities of troponin T can be detected by a high sensitivity assay (laboratory estimation). hsTnT is more […]

What is bidirectional ventricular tachycardia?

Bidirectional ventricular tachycardia is an abnormal fast rhythm originating from the ventricle. It is named so because alternate QRS complexes (electrical activity of the ventricles) have opposite directions: one being upwards while the other is downwards. This is a characteristic rhythm disorder seen in toxicity of a medicine called digitalis, which is used to augment […]

What is the treatment of supraventricular ectopics?

Supra ventricular ectopics (SVPC: supra ventricular premature complex) are abnormal heart beats with trigger signals originating above the ventricles (lower chambers of the heart). They could be from the atrium or atrioventricular junction. Isolated supra ventricular ectopics may not need any specific treatment other than that of the disorder causing them. Stretching of the atria due […]

How to remove blood clots in coronary artery?

Coronary arteries are blood vessels supplying oxygenated blood to the heart. Clots in a coronary artery can block the blood flow to a region of the heart muscle, causing a heart attack (myocardial infarction). Clots in the coronary artery can be dissolved by clot busting drugs like streptokinase, urokinase, tissue plasminogen activator, tenecteplase or reteplase. […]

What is the route a catheter takes in coronary angio?

Coronary angiography (angio for short) is X-ray imaging of the coronary arteries (blood vessels supplying oxygenated blood to the heart muscle) after injecting radiocontrast material into the arteries using small tubes known as catheters. Tip of the coronary catheter is introduced into the opening of the arteries from the aorta (largest blood vessel supplying oxygenated […]