unstable angina
noun Date: 1972 angina pectoris characterized by sudden changes (as an increase in the severity or length of anginal attacks or a decrease in the exertion required to precipitate an attack) especially when symptoms were previously stable

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • unstable angina — n angina pectoris characterized by sudden changes (as an increase in the severity or length of anginal attacks or a decrease in the exertion required to precipitate an attack) esp. when symptoms were previously stable * * * unstable angina… …   Medical dictionary

  • Angina pectoris — Angina redirects here. For other uses, see Angina (disambiguation). Angina pectoris Classification and external resources ICD 10 I20 ICD 9 …   Wikipedia

  • Angina pectoris — Chest pain that is typically severe and crushing with a feeling just behind the breastbone (the sternum) of pressure and suffocation, due to an inadequate supply of oxygen to the heart muscle. The term “angina pectoris” comes from the Latin… …   Medical dictionary

  • Angina — is chest pain that is due to an inadequate supply of oxygen to the heart muscle. The chest pain of angina is typically severe and crushing. There is a feeling just behind the breastbone (the sternum) of pressure and suffocation. The word “angina” …   Medical dictionary

  • Prinzmetal angina — Chest pain due to coronary artery spasm, a sudden constriction of a coronary artery (one of the vessels that supply the heart muscle with blood rich in oxygen) depriving the heart muscle (myocardium) of blood and oxygen. This is also called… …   Medical dictionary

  • stable angina — pectoris, typical angina angina pectoris occurring in attacks of predictable frequency and duration after provocation by circumstances that increase myocardial oxygen demands, such as exercise, emotional stress, or excitement, the precipitating… …   Medical dictionary

  • preinfarction angina — 1. angina pectoris preceding a myocardial infarction. 2. unstable a. pectoris …   Medical dictionary

  • UNASEM — Unstable Angina Study Using Eminase …   Medical dictionary

  • UNSA — Unstable Angina Study …   Medical dictionary

  • UNASEM — • Unstable Angina Study Using Eminase …   Dictionary of medical acronyms & abbreviations

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