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題 名 | Emerging New Frontiers in Cardiac Pacing: Cardiac Pacing in Heart Failure=心律調節器治療(激搏)之新興領域:心臟衰竭之激搏治療 |
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作 者 | 郭啟泰; 林圀宏; 江正文; | 書刊名 | 長庚醫學 |
卷 期 | 24:3 2001.03[民90.03] |
頁 次 | 頁141-150 |
分類號 | 415.318 |
關鍵詞 | 激搏治療; 心臟衰竭; 心臟失去同步之現象; 心室內傳導障礙; Pacing; Heart failure; Cardiac dysynchrony; Intraventricular conduction defect; |
語 文 | 英文(English) |
英文摘要 | Indications for pacing have leapt beyond sinus node dysfunction and atrioventricular (AV) block. Pacing for the purpose of improving hemodynamics has become the prime subject of exploration. Several studies have reported hemodynamic and clinical improvement with bi-ventricular pacing and AV sequential pacing. Data is still pouring in from the various ongoing trials regarding the beneficial effects of these methods of pacing. This is especially true in a subset of patients with intractable heart failure. There are several indicators to identify these patients. Those who have intra-ventricular conduction defects and those who demonstrate hemodynamic improvement after temporary pacing are certainly the candidates who will benefit most from this new form of pacing. Prolonged PR interval or left bundle branch block with intractable heart failure also falls into this category. The rationale of pacing in heart failure is to correct the cardiac dysynchrony that occurs frequently in these patients. Cardiac dysynchrony can occur due to ineffective synchronization between atria and ventricles (AV dysynchrony) or due to lack of synchronization within the two ventricles (ventricular dysynchrony). This is overcome by AV sequential pacing or by multi chamber pacing using the coronary sinus as portal of entry of the electrode into the cardiac vein to pace the left ventricle. Pacing leads and generators have been designed to suit the new found methods of pacing. Clinical trials are in full swing to establish the efficacy of these methods. (Chang Gung Med J 2001;24:141-50) |
本系統中英文摘要資訊取自各篇刊載內容。