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- W2077692169 abstract "Background: Mild hypotension (drops of systolic blood pressure of ≥20 mmHg) occurs in 14--38% of dobutamine stress echo (DSE) and carries a good prognosis for subsequent cardiac events. The incidence and significance of more profound hypotension (PH) (≥ 50mmHg) is unknown. Hypothesis: The aim of the study was to determine the incidence of PH during DSE and its prognosis for subsequent cardiac events. Methods: We reviewed 617 DSE performed at our institution between 1992 and 1996 and identified two DSE subgroups. The first group (PH group) consisted of all patients with PH during DSE. A second group was selected with baseline characteristics similar to the PH group but without PH during DSE (non-PH group). Follow-up was by a physician chart review and direct telephone contact. Cardiac event rates were determined for hard [myocardial infarction (MI), or cardiac death] and soft (angina, congestive heart failure, coronary angioplasty, or coronary bypass surgery) events occurring after the DSE. Results: Of the 617 DSE performed, 16 (3%) patients developed PH (PH group) during DSE, with 13 showing no inducible ischemia. The hard and soft cardiac event rate in this 13 PH group was 46% (mean follow-up of 28.7 ± 18 months). Of the non-PH group, 32 patients had a negative DSE with a coronary event rate of 12.5%. Profound hypotension correlated with a significantly higher cardiac event rate (p < 0.02). Conclusions: The incidence of PH during DSE is low (3%) and appears to predict a worse prognosis for subsequent cardiac events." @default.
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- W2077692169 date "2000-01-01" @default.
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- W2077692169 title "Incidence and significance of profound hypotension during dobutamine stress echocardiography" @default.
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- W2077692169 doi "https://doi.org/10.1002/clc.4960230109" @default.
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