Incidence, clinical significance and prognosis of ventricular fibrillation in the early phase of myocardial infarction |
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Authors: | DUBOIS, CH. SMEETS, J. P. DEMOULIN, J. CL. PIERARD, L. FOIDART, G. HENRARD, L. TULIPPE, CH. PRESTON, L. CARLIER, J. KULBERTUS, H. E. |
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Affiliation: | University of Liège, School of Medicine, Section of Cardiology 66 Bvd de la Constitution, 4020 Liege, Belgium |
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Abstract: | Of 1265 patients admitted to the CCU with the diagnosis of acuteMI, 96 (7.6%) developed ventricular fibrillation within 72 hoursfollowing admission. Of these 96, 35 (36.5%) had secondary VFassociated with left ventricular failure; they had a high in-hospitalmortality of 57.1%. The remaining 61 (63.5%) had primary VF,i.e. VF occurring in the absence of significant LV failure.Fourteen of these (23%) died in hospital: 9 due to PVF (3 duringthe first episode, 6 during a recurrence). This mortality figurewas significantly higher (P<0.001) than the mortality of10% seen among patients who did not experience VF. Primary VFshowed a recurrence rate of 20%. Compared with the 1061 patientswho left the hospital without primary VF, the 61 subjects withthis rhythm disorder were older, had larger infarcts and morefrequent complications, such as pericarditis, conduction abnormalities,frequent ventricular premature contractions and signs of rightventricular failure. These findings, in contrast with a widelyheld view, suggest that primary VFmay carry a guarded prognosis. |
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Keywords: | Myocardial infarction ventricular fibrillation primary VF secondary VF |
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