All About Cardiovascular System and Disorders

Warfarin is an oral anticoagulant used to prevent clotting in certain critical regions of the circulation.

If the cervical rib compresses the nerve root from the spinal segment supplying the heart, pain will be similar in location to that of heart attack.

Single tablet of digoxin is unlikely to cause any adverse effect in a person with otherwise normal heart and a good kidney function.

Heart muscle contraction occurs due to the sliding in of actin and myosin myofilaments so that the length of the sarcomere decreases.

Genetically determined high cholesterol also responds to low fat diet, exercise and medicines like statins. Some may need LDL apheresis.

Stroke volume is the amount of blood ejected from the ventricles into the arterial bed with each contraction.

One syndrome X is normal epicardial coronaries with recurrent anginal pain. Usually it is not a dangerous condition.

Amiodarone markedly increases effect of warfarin sodium. Amiodarone inhibits cytochrome P450 mediated metabolism of warfarin.

In dual chamber AV sequential pacing, ventricles are paced a short while after the atria, facilitating atrial help for ventricular filling.

Ezetemibe lowers blood cholesterol by inhibiting its intestinal absorption by acting on Niemann-Pick C1Like1 (NPC1L1) receptor in intestinal brush border.