Institut universitaire de cardiologie et pneumologie de Québec (IUCPQ-UL), Laval University, 2725 Chemin Ste-Foy, Quebec, QC, G1V 4G5, Canada.
Card Electrophysiol Clin. 2023 Sep;15(3):331-341. doi: 10.1016/j.ccep.2023.05.004. Epub 2023 Jun 18.
Short-coupled ventricular fibrillation (SCVF) is a distinct phenotype among individuals with unexplained cardiac arrest accounting for 7% to 14% of cases of idiopathic ventricular fibrillation (IVF). VF is typically initiated by a trigger premature ventricular contraction with a short-coupling interval of less than 350 milliseconds. In the absence of specific electrocardiographic features or provocative tests, the diagnosis remains challenging and requires documentation of VF onset. Most cases are diagnosed during follow-up at the time of VF recurrence. SCVF is characterized by a high risk of VF recurrence. Insertion of an implantable cardioverter-defibrillator and quinidine are the keystones of SCVF management.
短联律室性心动过速（SCVF）是不明原因心搏骤停患者中的一种特殊表型，占特发性室性心动过速（IVF）病例的 7%至 14%。VF 通常由短联律间期（小于 350 毫秒）的触发性室性期前收缩引发。在缺乏特定心电图特征或激发试验的情况下，诊断仍然具有挑战性，需要记录 VF 的起始。大多数病例在 VF 复发时的随访期间诊断。SCVF 的特点是 VF 复发风险高。植入式心脏复律除颤器和奎尼丁的植入是 SCVF 管理的关键。
