Linked Life Data

3974272

Source:http://linkedlifedata.com/resource/pubmed/id/3974272

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SubjectPredicateObjectContext
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pubmed-article:3974272pubmed:abstractTextMost reports of operations for ventricular arrhythmia have dealt with patients with anterior myocardial infarction. Patients with previous remote inferior myocardial infarction and recurrent ventricular tachycardia or fibrillation are a difficult subset of patients to treat with surgical ablative procedures. Over a 2 year period, 11 patients with prior inferior myocardial infarction and drug-refractory ventricular tachycardia or fibrillation underwent elective operation to control the arrhythmia. Five patients had monomorphic ventricular tachycardia. Three of these five patients had localized endocardial resection and/or cryoablative procedures when the ventricular tachycardia was well localized intraoperatively. In the remaining two patients, ventricular tachycardia was noninducible intraoperatively, and the patients underwent extensive endocardial resection and mitral valve replacement because of sites suspected near the posterior papillary muscle from preoperative catheter mapping. None of these five patients had inducible ventricular tachycardia postoperatively, and all are clinically free of the arrhythmia over a 24 month follow-up period. One patient with two morphologies of ventricular tachycardia previously had an unsuccessful blind endocardial resection. She underwent map-directed cryoablation of both sites of ventricular tachycardia. Postoperatively, the patient was free of inducible arrhythmia and has been asymptomatic over 8 months. Five patients had pleomorphic ventricular tachycardia or fibrillation that could not be electrically localized. One patient with ventricular fibrillation underwent extensive endocardial resection, but the posterior papillary muscle was spared. Postoperative electrophysiological study was positive. The patient has had no clinical ventricular arrhythmias on a regimen of amiodarone, however. Two patients had extensive endocardial resection and mitral valve replacement. One died early in the postoperative course and the other is clinically well. The remaining two patients had an encircling endocardial ventriculotomy. Both are clinically stable although one had inducible ventricular fibrillation postoperatively. We conclude that well-defined monomorphic ventricular tachycardia in patients with a previous inferior myocardial infarction can be successfully treated with localized endocardial resection and/or cryoablation. However, patients with poorly localized monomorphic ventricular tachycardia or pleomorphic ventricular tachycardia or fibrillation may require more extensive procedures. The role of posterior papillary muscle sacrifice with mitral valve replacement remains undefined.(ABSTRACT TRUNCATED AT 400 WORDS)lld:pubmed
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pubmed-article:3974272pubmed:authorpubmed-author:GreeneH LHLlld:pubmed
pubmed-article:3974272pubmed:authorpubmed-author:MisbachG AGAlld:pubmed
pubmed-article:3974272pubmed:authorpubmed-author:IveyT DTDlld:pubmed
pubmed-article:3974272pubmed:authorpubmed-author:BradyG HGHlld:pubmed
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pubmed-article:3974272pubmed:volume89lld:pubmed
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pubmed-article:3974272pubmed:pagination369-77lld:pubmed
pubmed-article:3974272pubmed:dateRevised2004-11-17lld:pubmed
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pubmed-article:3974272pubmed:year1985lld:pubmed
pubmed-article:3974272pubmed:articleTitleSurgical management of refractory ventricular arrhythmias in patients with prior inferior myocardial infarction. A preliminary report.lld:pubmed
pubmed-article:3974272pubmed:publicationTypeJournal Articlelld:pubmed
http://linkedlifedata.com/r...pubmed:referesTopubmed-article:3974272lld:pubmed