CLINICAL MEDICINE

Detailed explanation-1: -In unstable angina the chest discomfort is similar in quality to that of chronic stable angina, although it is usually more intense, is usually described as pain, may persist for as long as 30 min, and occasionally awakens the patient from sleep. When it lasts more than 30 min, an infarction should be suspected.

Detailed explanation-2: -Vasospastic angina is a type of angina (chest pain) that usually occurs at rest – often in the early morning or at night-and feels like a constriction or tightening in the chest. Vasospastic angina is also known as prinzmetal angina, variant angina or coronary artery spasm.

Detailed explanation-3: -Coronary artery disease due to atherosclerosis is the most common cause of unstable angina. Atherosclerosis is the buildup of fatty material, called plaque, along the walls of the arteries. This causes arteries to become narrowed and less flexible. The narrowing can reduce blood flow to the heart, causing chest pain.

Detailed explanation-4: -Types of angina include: Unstable angina-A more unpredictable and/or severe pattern, where chest pain may occur while resting or even sleeping (nocturnal angina), which may be a sign that you’re about to have a heart attack.

Detailed explanation-5: -Unstable angina (a medical emergency). Unstable angina is unpredictable and occurs at rest. Or the angina pain is worsening and occurs with less physical effort. It’s typically severe and lasts longer than stable angina, maybe 20 minutes or longer. The pain doesn’t go away with rest or the usual angina medications.