partial heart block

partial heart block
second degree heart b.

Medical dictionary. 2011.

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  • Heart block — A block in the conduction of the normal electrical impulses in the heart. * * * heart block n incoordination of the heartbeat in which the atria and ventricles beat independently due to defective transmission through the bundle of His and which… …   Medical dictionary

  • heart block — a condition in which conduction of the electrical impulses generated by the natural pacemaker of the heart (the sinoatrial node) is impaired. In partial or incomplete heart block conduction between atria and ventricles is delayed (first degree… …   The new mediacal dictionary

  • second degree heart block — the partial form of heart block, in which some impulses are not conducted; often used specifically for second degree atrioventricular block. Called also partial heart b …   Medical dictionary

  • Блокада Сердца (Heart Block) — состояние, при котором нарушается проводимость электрических импульсов, генерируемых естественным водителем ритма сердца (синусно предсердным узлом), в результате чего нарушается способность сердца перекачивать кровь. При частичной (partial) или… …   Медицинские термины

  • block — 1. To obstruct; to arrest passage through. 2. A condition in which the passage of an electrical impulse is arrested, wholly or in part, temporarily or permanently. 3. SYN: atrioventricular b.. [Fr. bloquer] alveolocapillary b. the presence of… …   Medical dictionary

  • Heart sounds — Front of thorax, showing surface relations of bones, lungs (purple), pleura (blue), and heart (red outline). The location of best auscultation for each heart valve are labeled with M , T , A , and P . First heart sound: caused by atrioventricular …   Wikipedia

  • second degree atrioventricular block — a second degree heart block due to partial impairment of impulse conduction through the atrioventricular junctional tissue; impulses intermittently fail to reach the ventricles (dropped beats). It occurs as two types: type I is Wenckebach or… …   Medical dictionary

  • БЛОКАДА СЕРДЦА — (heart block) состояние, при котором нарушается проводимость электрических импульсов, генерируемых естественным водителем ритма сердца (синусно предсердным узлом), в результате чего нарушается способность сердца перекачивать кровь. При частичной… …   Толковый словарь по медицине

  • drug — drug1 /drug/, n., v., drugged, drugging. n. 1. Pharm. a chemical substance used in the treatment, cure, prevention, or diagnosis of disease or used to otherwise enhance physical or mental well being. 2. (in federal law) a. any substance… …   Universalium

  • Drug — /droog/, n. Zoroastrianism. the cosmic principle of disorder and falsehood. Cf. Asha. [ < Avestan drauga] * * * I Any chemical agent that affects the function of living things. Some, including antibiotics, stimulants, tranquilizers,… …   Universalium

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