Syncope and conduction problems: when is pacing the solution?
- PMID: 7203020
Syncope and conduction problems: when is pacing the solution?
Abstract
SSS is characterized by sinus bradycardia and asystole. Syncope from SSS carries a better prognosis than syncope from heart block. AV node heart block is signaled by P-R prolongation and Wenckebach periodicity. Symptoms vary in severity, with or without syncope. TF heart block is preceded by left-bundle branch block or by right-bundle branch block plus fascicular block. Prognosis for the unpaced patient subject to TF block is grave. The fact that ECGs suggesting sinus bradycardia, P-R prolongation, and bifascicular block (all causes of syncope) are very common among the elderly and usually have an innocent course, increases the difficulty of deciding which patient will benefit from pacing. Certainly a pacemaker should not be inserted because of abnormal ECG alone.
Similar articles
-
[Syncope in bradycardic cardiac arrhythmias].Herz. 1993 Jun;18(3):182-6. Herz. 1993. PMID: 8330853 Review. German.
-
[Bradycardia-induced syncope].Ther Umsch. 1997 Mar;54(3):144-50. Ther Umsch. 1997. PMID: 9333979 Review. German.
-
Dizziness and near syncope due to sinus bradycardia and sinoatrial block associated with obesity and daytime tiredness. A clear indication for pacemaker implantation?Herz. 2008 Sep;33(6):455-9. doi: 10.1007/s00059-008-3096-2. Epub 2009 Jan 21. Herz. 2008. PMID: 19156381
-
Update on sick sinus syndrome, a cardiac disorder of aging.Geriatrics. 1990 Jan;45(1):26-30, 33-6. Geriatrics. 1990. PMID: 2403955 Review.
-
Clinical predictors of cardiac events in patients with isolated syncope and negative electrophysiologic study.Int J Cardiol. 2006 Apr 28;109(1):28-33. doi: 10.1016/j.ijcard.2005.05.025. Epub 2005 Jun 21. Int J Cardiol. 2006. PMID: 15975670
MeSH terms
LinkOut - more resources
Medical
Research Materials
Miscellaneous