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Modulation of QT Interval by Cardiac Sympathetic Nerve Sprouting and the Mechanisms of Ventricular Arrhythmia in a Canine Model of Sudden Cardiac Death

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dc.contributor.author이문형-
dc.date.accessioned2016-02-19T10:58:07Z-
dc.date.available2016-02-19T10:58:07Z-
dc.date.issued2001-
dc.identifier.issn1045-3873-
dc.identifier.urihttps://ir.ymlib.yonsei.ac.kr/handle/22282913/142100-
dc.description.abstractIntroduction: We previously reported that there is a high incidence of sudden cardiac death (SCD) in dogs with myocardial infarction (MI), complete AV block (CAVB), and nerve growth factor (NGF) infusion to the left stellate ganglion (LSG). Whether or not QT interval prolongation underlines the mechanism of SCD was unclear. Methods and Results: We analyzed QT intervals in three groups of dogs. All dogs had CAVB and MI. The LSG group (n = 9) and right stellate ganglion (RSG) group (n = 6) received NGF infusion via the osmotic pumps over a 5-week period to LSG and RSG, respectively. The control group (n = 6) received no NGF. The dogs either died suddenly or were sacrificed within 2 to 3 months after MI. Heart rhythm and QT and RR intervals were monitored using implantable cardioverter defibrillator ECG recordings. There was a time-dependent increase of QTc intervals in the LSG group and a time-dependent decrease of QTc intervals in the RSG group. At the end of NGF infusion, QTc intervals in the LSG group (408 ± 41 msec) were significantly longer than those in the control (350 ± 41 msec; P < 0.05) and RSG groups (294 ± 23 msec; P < 0.01). In the LSG group, 4 of 9 dogs died of SCD. There was no SCD in either the RSG or control group. Immunocytochemical staining showed NGF infusion to LSG and RSG resulted in left and right ventricular sympathetic nerve sprouting and hyperinnervation, respectively. Conclusion: NGF infusion to the LSG in dogs with MI and CAVB resulted in increased QT interval and incidence of ventricular tachycardia, ventricular fibrillation, and SCD, whereas NGF infusion to the RSG shortened QT interval and reduced the incidence of ventricular tachycardia. These findings indicate that QT interval prolongation is causally related to the occurrence of ventricular arrhythmia in dogs with nerve sprouting, MI, and CAVB.-
dc.description.statementOfResponsibilityopen-
dc.format.extent1068~1073-
dc.relation.isPartOfJOURNAL OF CARDIOVASCULAR ELECTROPHYSIOLOGY-
dc.rightsCC BY-NC-ND 2.0 KR-
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/2.0/kr/-
dc.subject.MESHAnimals-
dc.subject.MESHDeath, Sudden, Cardiac/etiology*-
dc.subject.MESHDisease Models, Animal-
dc.subject.MESHDogs-
dc.subject.MESHElectrocardiography/drug effects-
dc.subject.MESHHeart Block/etiology-
dc.subject.MESHHeart Block/physiopathology-
dc.subject.MESHHeart Rate/drug effects-
dc.subject.MESHMyocardial Infarction/complications-
dc.subject.MESHMyocardial Infarction/physiopathology-
dc.subject.MESHNerve Growth Factor/pharmacology*-
dc.subject.MESHNerve Regeneration-
dc.subject.MESHStellate Ganglion/drug effects*-
dc.subject.MESHStellate Ganglion/physiology-
dc.subject.MESHTachycardia, Ventricular/etiology*-
dc.subject.MESHVentricular Fibrillation/etiology*-
dc.titleModulation of QT Interval by Cardiac Sympathetic Nerve Sprouting and the Mechanisms of Ventricular Arrhythmia in a Canine Model of Sudden Cardiac Death-
dc.typeArticle-
dc.contributor.collegeCollege of Medicine (의과대학)-
dc.contributor.departmentDept. of Internal Medicine (내과학)-
dc.contributor.googleauthorSHENGMEI ZHOU-
dc.contributor.googleauthorJI-MIN CAO-
dc.contributor.googleauthorZACH D. TEBB-
dc.contributor.googleauthorTOSHIHIKO OHARA-
dc.contributor.googleauthorHSUN-LUN A. HUANG-
dc.contributor.googleauthorCHIKAYA OMICHI-
dc.contributor.googleauthorMOON-HYOUNG LEE-
dc.contributor.googleauthorBRUCE H. KENKNIGHT-
dc.contributor.googleauthorLAN S. CHEN-
dc.contributor.googleauthorMICHAEL C. FISHBEIN-
dc.contributor.googleauthorHRAYR S. KARAGUEUZIAN-
dc.contributor.googleauthorPENG-SHENG CHEN-
dc.identifier.doi10.1046/j.1540-8167.2001.01068.x-
dc.admin.authorfalse-
dc.admin.mappingfalse-
dc.contributor.localIdA02766-
dc.relation.journalcodeJ01293-
dc.identifier.eissn1540-8167-
dc.identifier.pmid11573698-
dc.identifier.urlhttp://onlinelibrary.wiley.com/doi/10.1046/j.1540-8167.2001.01068.x/abstract-
dc.subject.keywordarrhythmia-
dc.subject.keywordmyocardial infarction-
dc.subject.keywordheart block-
dc.subject.keywordsudden death-
dc.subject.keywordsympathetic nerve-
dc.contributor.alternativeNameLee, Moon Hyoung-
dc.contributor.affiliatedAuthorLee, Moon Hyoung-
dc.rights.accessRightsnot free-
dc.citation.volume12-
dc.citation.number9-
dc.citation.startPage1068-
dc.citation.endPage1073-
dc.identifier.bibliographicCitationJOURNAL OF CARDIOVASCULAR ELECTROPHYSIOLOGY, Vol.12(9) : 1068-1073, 2001-
dc.identifier.rimsid31601-
dc.type.rimsART-
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers

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