Prevalence of intraventricular block in the general population: The Framingham Study
Key result
Complete intraventricular block is strongly linked to CHD and CHF in elderly adults.
Population
Members of the Framingham Heart Study cohort and offspring
Design
Cohort
Authors
Discussion
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Member takes
Implication
Alerts clinicians to monitor elderly men for conduction delay; leaves open whether block independently predicts outcomes beyond CHD and HF.
Study Design
Type
Cohort
Structured PICO
P
Population
Members of the Framingham Heart Study cohort and offspring assessed for the prevalence and correlates of intraventricular block.
O
Outcome
Prevalence of intraventricular block (QRS interval)surrogate
Intraventricular block is common in the elderly, particularly men, and is strongly associated with cardiovascular comorbidities such as coronary heart disease and heart failure.
Limitations
- Whether people with prolonged QRS intervals need special monitoring or attention cannot be told from these data.
- Whether people with prolonged QRS intervals need special monitoring or attention cannot be determined from these data
Cite This Study
Kreger et al. (1989) conducted a cohort in Intraventricular block. Prolonged QRS interval was evaluated on Prevalence of intraventricular block. Complete intraventricular block (QRS ≥0.12 second) was observed in 11% of elderly men and 5% of elderly women, and was strongly associated with coronary heart disease and congestive heart failure.