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首页> 外文期刊>Progress in pediatric cardiology >The infant with supraventricular tachycardia: Diagnosis and management
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The infant with supraventricular tachycardia: Diagnosis and management

机译：婴儿室上性心动过速的诊断与处理

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摘要

Supraventricular tachycardia (SVT) represents one of the most commonly encountered significant cardiac conditions in childhood occurring in 1 of 250-1000 children and is the most common sustained arrhythmia from intrauterine life onwards. The mechanism of SVT is age-related with atrioventricular reentry tachycardia (AVRT) representing the most common tachycardia substrate in infants and young childrea atrioventricular nodal reentrant tachycardia (AVNRT) becoming more common in older children and young adults [1] and atrial fibrillation most common in adults. AVRT is due to a reentrant circuit that involves unidirectional conduction over the atrioventricular (AV) node, usually antegrade, and unidirectional conduction over an accessory AV connection, usually in the retrograde direction. For reasons that are not yet clear, some accessory AV connections are capable of only retrograde conduction, from the ventricles to the atria. In this setting SVT can occur, but the 12-lead electrocardiogram (ECG) during sinus rhythm is normal and the pathways are considered "concealed." In others, antegrade conduction over the accessory connection is evident (manifest) on the surface ECG of these infants with Wolff-Parkinson-White Syndrome (WPW).
机译：室上性心动过速（SVT）代表250-1000名儿童中的1名儿童时期最常见的严重心脏疾病，并且是宫内生活以来最常见的持续性心律不齐。 SVT的机制与年龄有关，房室折返性心动过速（AVRT）代表婴儿和幼儿最常见的心动过速底物，房室结折返性心动过速（AVNRT）在年龄较大的儿童和年轻人中越来越普遍[1]，而房颤最常见在成人中。 AVRT是由于折返电路引起的，该电路涉及在房室（AV）节点上进行单向传导（通常为正向），并在辅助AV连接上进行单向传导（通常为逆向）。由于尚不清楚的原因，某些附件AV连接只能从心室到心房逆行传导。在这种情况下，可能会发生SVT，但是窦性心律期间的12导联心电图（ECG）是正常的，并且该路径被认为是“隐藏的”。在其他人中，这些沃尔夫·帕金森-怀特综合症（WPW）婴儿的表面心电图上明显显示（表明）了附件连接上的顺行传导。

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