Key result
Higher peak reverse flow velocity associated with atrial contraction (PVa) was significantly associated with cardiac death or readmission for heart failure after acute myocardial infarction (p=0.039).
Why the study?
Do Doppler indexes of pulmonary venous flow predict cardiac death or heart failure readmission in patients after acute myocardial infarction?
Cohort (n=122)
Do Doppler indexes of pulmonary venous flow predict cardiac death or heart failure readmission in patients after acute myocardial infarction?
Answers are grounded in this paper and cite their sources.
Doppler-derived pulmonary venous flow indexes, specifically PVa and PVs/PVd ratio, are useful for predicting long-term cardiac events in patients with acute myocardial infarction and an E/A ratio >1.
Background and Objectives:Doppler indexes of pulmonary venous flow (PVF) have been recognized to be useful in defining left ventricular filling characteristics, but their long-term prognostic value in patients with acute myocardial infarction (AMI) is not clear. The purpose of this study was to determine the prognostic significance of Doppler indexes of PVF after AMI. Subjects and Methods:Doppler echocardiographic examination was performed in 122 patients with AMI between 7 to 10 days after attack, and followed for 30 months. Peak systolic velocity (PVs), peak diastolic velocity (PVd), and peak reverse flow velocity associated with atrial contraction (PVa) of PVF were measured by transthoracic echocardiography. End-points were cardiac death or readmission due to congestive heart failure (re-CHF). Results:There were 9 deaths (7.4%) and 13 patients with re-CHF (10.7%) during the follow-up period. Patients with events had higher PVa (p=0.039). Subgroup analysis of patients with E/A ratio >1 showed that they had lower PVs/PVd ratio (p=0.029) and higher PVa (p=0.069). Event-free survival was significantly lower in patients with PVs/PVd ratio 1. Conclusion:PVa and PVs/PVd ratio of PVF were helpful indexes in predicting the prognosis in patients with AMI and an E/A ratio of >1. (Korean Circulation J 2003;33 (6):491-498)
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Joo et al. (2003) conducted a cohort in acute myocardial infarction (n=122). Doppler indexes of pulmonary venous flow (PVF) was evaluated on cardiac death or readmission due to congestive heart failure (re-CHF) (p=0.039). Higher peak reverse flow velocity associated with atrial contraction (PVa) was significantly associated with cardiac death or readmission for heart failure after acute myocardial infarction (p=0.039).
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