Sinus arrhythmia and sinus bradycardia are two conditions characterized by abnormal heart rhythms. Sinus arrhythmia is an irregularity in the heart rhythm due to a problem in the sinus node. The sinus node is the natural “pacemaker” of the heart.  This means it is the structure responsible for setting the rhythm of a person’s heartbeats. Sinus arrhythmia […]

Femoral and radial arterial pressure are two forms of arterial blood pressure measured in different sites of the body. Each time the heart beats, it pumps blood into the arteries. A blood pressure measurement usually measures the pressure in the arteries when the heart pumps. Blood measurements can be taken from different sites of the […]

The mitral valve prolapse and regurgitation are two heart valve conditions that affect the function of the mitral valve. The mitral valve controls the blood flow from the heart’s left atrium to the left ventricle. Heart valve conditions can affect the mitral valve function. The key difference between mitral valve prolapse and mitral valve regurgitation is […]

Cardiac tamponade and constrictive pericarditis are clinical problems involving the potential space surrounding the heart or pericardium. The pericardium is a fluid-filled sac that surrounds and protects the heart. Apart from that, the heart wall is made up of three layers: epicardium, myocardium, and endocardium. The key difference between cardiac tamponade and constrictive pericarditis is […]

The key difference between cardiac and non-cardiac chest pain is that cardiac chest pain refers to discomfort or pressure in the chest due to inadequate blood flow to the heart, while non-cardiac chest pain refers to unrelated sharp sensations in the chest that originate outside the heart. Chest pain is a pain or discomfort that […]

The key difference between prinzmetal and unstable angina is that prinzmetal angina is a type of angina characterized by strong pain that happens during rest such as between midnight and early morning, while unstable angina is a type of angina characterized by strong pain for longer periods of time without following a pattern such as […]

The key difference between bruise and purpura is that bruise is a discolored patch on the skin or tissue that is due to an injury while purpura is a purple-colored spot most recognizable on the skin or mucous membrane that is due to some problems inside the body. Skin lesions are areas of the skin […]

The key difference between paroxysmal and persistent atrial fibrillation is that paroxysmal atrial fibrillation is a type of atrial fibrillation that occurs suddenly and resolves by itself within 7 days, while persistent atrial fibrillation is a type of atrial fibrillation that is continual and lasts for more than 7 days. Atrial fibrillation is a condition that […]

The key difference between Torsades de Pointes and ventricular fibrillation is that Torsades de Pointes is a type of ventricular tachycardia where ventricles contract rapidly but usually regularly, while ventricular fibrillation is a type of irregular heart rhythm where ventricle walls twitch uncontrollably and irregularly. Arrhythmia is an irregular heartbeat. It is a problem with the rhythm […]

The key difference between AV block 1 and 2 is that AV block 1 is due to a delay in the conduction of atrial impulses to the ventricles, while AV block 2 is due to a blocking of the conduction of some of the atrial impulses to the ventricles. Heart block is also known as […]