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Updated: Jul 31, 2026

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慢性不律症の患者において,時間の関数として心室外視野活性の自発的変動の変化

M I Anastasiou-Nana1, R L Menlove, J N Nanas

  • 1Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City.

Circulation
|August 1, 1988
PubMed
まとめ

静脈動脈不律の自発的変動は顕著であり,1~2週間後に薬の有効性を確認するために,早発性静脈複合体 (PVC) の85%以上の減少が必要である. 変動性が増加したため,より長い評価期間にはより高い削減が必要である.

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Mechanism of Cardiac Arrhythmias01:28

Mechanism of Cardiac Arrhythmias

Arrhythmias are irregular heart rhythms occurring when the heart's electrical impulses become abnormal. These disturbances can lead to various symptoms, depending on their severity and the underlying cause. Some common factors contributing to arrhythmias include hypoxia, ischemia, electrolyte imbalances, excessive catecholamine exposure, drug toxicity, and muscle overstretching. Arrhythmias can be classified into two main types based on the rate and site of origin of abnormal heart rhythms.
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Disturbances in Heart Rhythm

Arrhythmia or dysrhythmia refers to an abnormal heart rhythm caused by a defect in the heart's conduction system. It can cause the heart to beat irregularly, too quickly, or too slowly, leading to symptoms like chest pain, shortness of breath, and fainting. Factors such as stress, caffeine, alcohol, nicotine, cocaine, certain drugs, congenital defects, diseases, and electrolyte abnormalities can trigger arrhythmias.
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ECG Interpretation of Arrhythmias I: Sinus Arrhythmias

Arrhythmias are disturbances in the heart's rhythm that lead to abnormal heartbeats. These irregularities can originate from different parts of the heart and are classified based on their origin and nature.
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Dysrhythmias III: Characteristics of Dysrhythmias

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