Annals of Emergency Medicine
Volume 53, Issue 5 , Pages 691-692 , May 2009

Electrocardiographic Research on Left Bundle Branch Block Must Use Angiographic Outcomes and Proportionality If It Is to Guide Reperfusion Therapy

References 

  1. Tabas JA, Rodriguez RM, Seligman HK, et al. Electrocardiographic criteria for detecting acute myocardial infarction in patients with left bundle branch block: a meta-analysis. Ann Emerg Med. 2008;52:329–336
  2. GUSTO Investigators. An international randomized trial comparing four thrombolytic strategies for acute myocardial infarction. N Engl J Med. 1993;329:673–682
  3. Fesmire FM, Percy RF, Bardoner JB, et al. Usefulness of automated serial 12-lead ECG monitoring during the initial emergency department evaluation of patients with chest pain. Ann Emerg Med. 1998;31:3–11
  4. Fesmire FM, Percy RF, Wears RL, et al. Initial ECG in Q wave and non-Q wave myocardial infarction. Ann Emerg Med. 1989;18:741–746
  5. Rouan GW, Lee TH, Cook EF, et al. Clinical characteristics and outcome of acute myocardial infarction in patients with initially normal or nonspecific electrocardiograms (a report from the Multicenter Chest Pain Study). Am J Cardiol. 1989;64:1087–1092
  6. Rude RE, Poole WK, Muller J, et al. Electrocardiographic and clinical criteria for recognition of acute myocardial infarction based on analysis of 3,697 patients. Am J Cardiol. 1983;52:936–942
  7. Schmitt C, Lehmann G, Schmieder S, et al. Diagnosis of acute myocardial infarction in angiographically documented occluded infarct vessel: limitations of ST-segment elevation in standard and extended ECG leads. Chest. 2001;120:1540–1546
  8. Stark KS, Krucoff MW, Schryver B, et al. Quantification of ST-segment changes during coronary angioplasty in patients with left bundle branch block. Am J Cardiol. 1991;67:1219–1222
  9. Madias JE, Sinha A, Ashtiani R, et al. A critique of the new ST-segment criteria for the diagnosis of acute myocardial infarction in patients with left bundle branch block. Clin Cardiol. 2001;24:652–655
  10. Madias JE, Sinha A, Agarwal H, et al. ST-Segment elevation in Leads V1-V3 in Patients with Left Bundle Branch Block (LBBB). Journal of Electrocardiology. 2001;34:87–88
  11. Smith SW, Bertog SC, Lathrop LM, et al. ST/S Ratio Distinguishes Left Bundle Branch Block from Left Bundle Branch Block with Simultaneous Anterior Myocardial Infarction [abstract]. Acad Emerg Med. 2006;13:S160–S161
  12. Smith SW, Heegaard W, Bachour FA, et al. Acute myocardial infarction with left bundle-branch block: disproportional anterior ST elevation due to right ventricular myocardial infarction in the presence of left bundle-branch block. Am J Emerg Med. 2008;26:342–347

 Funding and support: By Annals policy, all authors are required to disclose any and all commercial, financial, and other relationships in any way related to the subject of this article that might create any potential conflict of interest. The author has stated that no such relationships exist. See the Manuscript Submission Agreement in this issue for examples of specific conflicts covered by this statement.

PII: S0196-0644(08)02015-5

doi: 10.1016/j.annemergmed.2008.10.034

Annals of Emergency Medicine
Volume 53, Issue 5 , Pages 691-692 , May 2009