Key result
Dobutamine infusion at 10 micrograms/kg.min significantly decreased the PEP/LVET ratio from 0.55 to 0.45 (p<0.01), enhancing left ventricular performance in premature infants.
Why the study?
Does dobutamine infusion improve left ventricular performance in hemodynamically unstable premature infants?
Population
17 hemodynamically unstable premature infants who had an elevated PEP/LVET ratio
Comparison
Dobutamine infusion (10 micrograms/kg.min) vs Baseline measurements before starting dobutamine…
Design
Cohort
Follow-up
30 min
Authors
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Supports dobutamine for LV performance in premature infants; hypothesis-generating and requires RCTs before practice change.
Does dobutamine infusion improve left ventricular performance in hemodynamically unstable premature infants?
Absolute Event Rate: 0.45% vs 0.55%
p-value: p=<.01
Dobutamine infusion enhances left ventricular performance in premature infants with depressed left ventricular function.
Stopfkuchen et al. (1990) studied Hemodynamically unstable premature infants (n=17). Dobutamine vs. Baseline (before infusion) was evaluated on PEP/LVET ratio (p=<.01). Dobutamine infusion at 10 micrograms/kg.min significantly decreased the PEP/LVET ratio from 0.55 to 0.45 (p<0.01), enhancing left ventricular performance in premature infants.
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