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Article: Clinical and angiographic findings of complete atrioventricular block in acute inferior myocardial infarction

TitleClinical and angiographic findings of complete atrioventricular block in acute inferior myocardial infarction
Authors
KeywordsCoronary angiography
In-hospital mortality
Issue Date2010
PublisherAcademy of Medicine Singapore. The Journal's web site is located at http://www.annals.edu.sg
Citation
Annals Of The Academy Of Medicine Singapore, 2010, v. 39 n. 3, p. 185-190 How to Cite?
AbstractIntroduction: The angiographic findings and prognosis of patients with complete atrioventricular block (AVB) complicating acute inferior myocardial infarction (MI) remain unclear. Materials and Methods: The clinical and angiographic findings of 70 consecutive patients with complete AVB were compared with those of 319 patients with inferior MI without AVB (control group) admitted within the same study period. Results: Patients with complete AVB were older (68 ± 12 vs 63 ± 13 years; P = 0.004) and clustered with clinical features indicative of larger infarct size, such as right ventricular infarction, cardiogenic shock, or low left ventricular ejection fraction (LVEF). The onset of the complete AVB was observed within 24 hours in 62 (88.6%), preceded by second-degree AVB in 26 (37.1%) and the escape QRS complex was wide in 8 (11.4%) patients. In patients with complete AVB, a dominant right coronary artery occlusion was found in >95% of cases and in-hospital mortality was increased (27.1% vs 10.7%; P = 0.000), especially in those with widen QRS escape rhythm (75.0%). Reperfusion therapy had a positive impact on the natural course of complete AVB. Conclusions: Complete AVB in acute inferior MI was associated with advanced age and larger infarct size. Complete AVB was virtually always caused by dominant right coronary artery occlusion. The in-hospital mortality was significantly higher, but improved by reperfusion therapy. No permanent pacemaker is performed at a mean follow-up of 47 months.
Persistent Identifierhttp://hdl.handle.net/10722/125057
ISSN
2015 Impact Factor: 1.041
2015 SCImago Journal Rankings: 0.425
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorJim, MHen_HK
dc.contributor.authorChan, AOOen_HK
dc.contributor.authorTse, HFen_HK
dc.contributor.authorBarold, SSen_HK
dc.contributor.authorLau, CPen_HK
dc.date.accessioned2010-10-31T11:09:01Z-
dc.date.available2010-10-31T11:09:01Z-
dc.date.issued2010en_HK
dc.identifier.citationAnnals Of The Academy Of Medicine Singapore, 2010, v. 39 n. 3, p. 185-190en_HK
dc.identifier.issn0304-4602en_HK
dc.identifier.urihttp://hdl.handle.net/10722/125057-
dc.description.abstractIntroduction: The angiographic findings and prognosis of patients with complete atrioventricular block (AVB) complicating acute inferior myocardial infarction (MI) remain unclear. Materials and Methods: The clinical and angiographic findings of 70 consecutive patients with complete AVB were compared with those of 319 patients with inferior MI without AVB (control group) admitted within the same study period. Results: Patients with complete AVB were older (68 ± 12 vs 63 ± 13 years; P = 0.004) and clustered with clinical features indicative of larger infarct size, such as right ventricular infarction, cardiogenic shock, or low left ventricular ejection fraction (LVEF). The onset of the complete AVB was observed within 24 hours in 62 (88.6%), preceded by second-degree AVB in 26 (37.1%) and the escape QRS complex was wide in 8 (11.4%) patients. In patients with complete AVB, a dominant right coronary artery occlusion was found in >95% of cases and in-hospital mortality was increased (27.1% vs 10.7%; P = 0.000), especially in those with widen QRS escape rhythm (75.0%). Reperfusion therapy had a positive impact on the natural course of complete AVB. Conclusions: Complete AVB in acute inferior MI was associated with advanced age and larger infarct size. Complete AVB was virtually always caused by dominant right coronary artery occlusion. The in-hospital mortality was significantly higher, but improved by reperfusion therapy. No permanent pacemaker is performed at a mean follow-up of 47 months.en_HK
dc.languageengen_HK
dc.publisherAcademy of Medicine Singapore. The Journal's web site is located at http://www.annals.edu.sgen_HK
dc.relation.ispartofAnnals of the Academy of Medicine Singaporeen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectCoronary angiographyen_HK
dc.subjectIn-hospital mortalityen_HK
dc.subject.meshAge Factors-
dc.subject.meshAged-
dc.subject.meshAtrioventricular Block - complications - mortality - radiography-
dc.subject.meshCoronary Angiography-
dc.subject.meshInferior Wall Myocardial Infarction - complications - mortality - radiography-
dc.titleClinical and angiographic findings of complete atrioventricular block in acute inferior myocardial infarctionen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0304-4602&volume=39&issue=3&spage=185&epage=190&date=2010&atitle=Clinical+and+Angiographic+findings+of+complete+atrioventricular+block+in+acute+inferior+myocardial+infarction-
dc.identifier.emailTse, HF:hftse@hkucc.hku.hken_HK
dc.identifier.authorityTse, HF=rp00428en_HK
dc.description.naturepublished_or_final_version-
dc.identifier.pmid20372753-
dc.identifier.scopuseid_2-s2.0-77950910236en_HK
dc.identifier.hkuros173631en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77950910236&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume39en_HK
dc.identifier.issue3en_HK
dc.identifier.spage185en_HK
dc.identifier.epage190en_HK
dc.identifier.isiWOS:000276665600008-
dc.publisher.placeSingaporeen_HK
dc.identifier.scopusauthoridJim, MH=6603860344en_HK
dc.identifier.scopusauthoridChan, AOO=7403167965en_HK
dc.identifier.scopusauthoridTse, HF=7006070805en_HK
dc.identifier.scopusauthoridBarold, SS=7101800584en_HK
dc.identifier.scopusauthoridLau, CP=7401968501en_HK

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