TY - JOUR
T1 - Survival in Patients With Intraventricular Conduction Defects
AU - Mcanulty, John H.
AU - Kauffman, Susan
AU - Murphy, Edward
AU - Kassebaum, Donald G.
AU - Rahimtoola, Shahbudin H.
PY - 1978/1
Y1 - 1978/1
N2 - All 42,000 electrocardiograms taken at the University of Oregon Health Sciences Center from 1969 through 1971 were reviewed; 325 patients (0.77%) had left bundle-branch block (LBBB) or right bundle-branch block (RBBB) with axis deviation (AD). In December 1974, 90% were contacted or found to be dead. The five-year survival rate (actuarial technique) (mean ± SE) was 45.5 ± 2.9%. It was significantly worse than that of age- and sex-matched “controls.” In most patients the cause of death could not be determined. Survival of 164 LBBB patients (40.7 ± 4.1%) at five years was not significantly worse than that of 161 RBBB and AD patients (49.5 ± 4.2%). Those with syncope did no worse in terms of survival than did those without. The five-year survival in coronary artery disease patients was 33.7 ± 4.4%; in those with primary conduction system disease (20% of patients), it was 50.6 ± 6.6%. It will be necessary to know the causes of death and of syncope in conduction disease patients before it can be determined whether or not pacemakers can prevent either.
AB - All 42,000 electrocardiograms taken at the University of Oregon Health Sciences Center from 1969 through 1971 were reviewed; 325 patients (0.77%) had left bundle-branch block (LBBB) or right bundle-branch block (RBBB) with axis deviation (AD). In December 1974, 90% were contacted or found to be dead. The five-year survival rate (actuarial technique) (mean ± SE) was 45.5 ± 2.9%. It was significantly worse than that of age- and sex-matched “controls.” In most patients the cause of death could not be determined. Survival of 164 LBBB patients (40.7 ± 4.1%) at five years was not significantly worse than that of 161 RBBB and AD patients (49.5 ± 4.2%). Those with syncope did no worse in terms of survival than did those without. The five-year survival in coronary artery disease patients was 33.7 ± 4.4%; in those with primary conduction system disease (20% of patients), it was 50.6 ± 6.6%. It will be necessary to know the causes of death and of syncope in conduction disease patients before it can be determined whether or not pacemakers can prevent either.
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U2 - 10.1001/archinte.1978.03630250014009
DO - 10.1001/archinte.1978.03630250014009
M3 - Article
C2 - 619828
AN - SCOPUS:84942560555
SN - 0003-9926
VL - 138
SP - 30
EP - 35
JO - Archives of internal medicine
JF - Archives of internal medicine
IS - 1
ER -