Related Experiment Videos
Parenteral calcium treatment shortens the left ventricular systolic time intervals of hypocalcemic neonates
Insights
Calcium infusion improved heart function in premature infants with low calcium levels. This study supports parenteral calcium therapy for hypocalcemic neonates, especially those with compromised heart function.
Area of Science:
- Neonatal Medicine
- Pediatric Cardiology
- Biochemistry
Background:
- Hypocalcemia is common in premature infants.
- Compromised myocardial function can occur in neonates.
- Parenteral calcium is used to treat hypocalcemia.
Purpose of the Study:
- To evaluate the effect of calcium bolus infusions on myocardial function in hypocalcemic premature infants.
- To compare the effects of calcium and saline infusions on cardiac parameters.
Main Methods:
- Study included 16 hypocalcemic premature infants.
- Measurements taken before and after bolus infusions of calcium and saline.
- Left ventricular systolic time interval ratios, heart rate, and blood pressures were assessed.
Main Results:
- Calcium infusion significantly decreased left ventricular systolic time interval ratios.
- Heart rate and blood pressures (systolic, mean, diastolic) increased after calcium infusion.
- Saline infusion showed no significant changes in these parameters.
Conclusions:
- Parenteral calcium therapy improves myocardial function in hypocalcemic preterm neonates.
- Calcium is beneficial, particularly for neonates with compromised cardiac function.
- Findings support the use of calcium for treating hypocalcemia in this population.
Abstract:
We studied 16 hypocalcemic premature infants before and after bolus infusions of calcium and saline. Their left ventricular systolic time interval ratios decreased significantly after calcium but not after saline administration. In addition, heart rate and systolic, mean and diastolic blood pressures increased after calcium infusion but not after saline infusion. These findings reflect an improvement in myocardial function and support the use of parenteral calcium therapy for hypocalcemic preterm neonates, particularly those who may have compromised myocardial function.