About My Health Careers Internship MedBlogs Contact us
Medindia LOGIN REGISTER
Advertisement

New Device to Measure Neonates’ Cardiac Output

by Colleen Fleiss on May 6, 2018 at 11:19 PM
Font : A-A+

New Device to Measure Neonates’ Cardiac Output

The COstatus monitor--a minimally invasive way to measure hemodynamics--captures cardiac output, total end diastolic volume, active circulation volume and central blood volume, reveal clinicians at Children's National Health System.

Clinicians caring for vulnerable babies in the neonatal intensive care unit (NICU) need to closely monitor their vital signs, but precisely gauging the function of their tiny hearts has remained elusive. Clinical markers like blood pressure, heart rate and urine output are available, but they are indirect measures of cardiac output, how much blood the heart pumps per minute. Less invasive techniques, such as Doppler ultrasound, can be imprecise. Respiratory mass spectrometry or catherization would provide more precision by directly calcuating cardiac output but carry risks or are not feasible for neonates.

Advertisement


The research team tested the approach by leveraging ultrasound dilution: Injecting saline, which has an ultrasound velocity of 1533m/second, slows the ultrasound velocity of blood from its normal rate of 1580m/second and produces a dilution curve. "It is feasible to directly measure neonatal cardiac output by ultrasound dilution via the COstatus monitor in the first two weeks of life with no adverse events," says Khodayar Rais-Bahrami, M.D., a Children's neonatologist and senior author for the research presented during the Pediatric Academic Societies 2018 annual meeting. "When we took consecutive measurements, we saw very little variance in the parameters."

The COstatus monitor uses an extracorporeal loop that is connected to arterial and venous catheters. The 12 neonates included in the study already had umbilical venous catheters as well as either a peripheral arterial line or umbilical arterial catheter. The infants ranged in weight from 0.72 to 3.74 kg and were born at 24 to 41.3 gestational weeks. The infants' cardiac output was measured 54 times from 1 to 13 days of life. Up to two measurement sessions occurred daily for a maximum of four days. The mean cardiac output was 0.43 L/minute with a mean cardiac index of 197mL/kg/minute.

Future research will describe normal cardiac output ranges for neonates as well as how these measurements evolve during the first week of life.

Source: Eurekalert
Advertisement

Advertisement
News A-Z
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
News Category
What's New on Medindia
Printed Temperature Sensors help with Continuous Temperature Monitoring
Health Benefits of Giloy
Breast Cancer Awareness Month 2021 - It's time to RISE
View all

Medindia Newsletters Subscribe to our Free Newsletters!
Terms & Conditions and Privacy Policy.

More News on:
Palpitations And Arrhythmias Statins Cardiomyopathy 

Recommended Reading
Congenital Heart Defects
Congenital heart defects are structural abnormalities of the heart present at birth, and that ......
Calculate Your Lifetime Risk of Heart Attack
Heart Risk Calculator assesses the lifetime risk for a heart attack and helps in making the right .....
Quiz on Heart Attack
The risk factors that work behind the scene before a heart attack are familiar to many. But do ......
Foods that Can Save Your Heart
Do you enjoy a glass of wine with your meal? If so it's good news for your heart!...
Cardiomyopathy
Cardiomyopathy weakens the heart muscles and the heart loses strength to pump blood throughout the b...
Palpitations And Arrhythmias
Palpitations are unpleasant sensation of one’s own heartbeat....
Statins
Statins are new wonder drugs that are proving to be efficacious, not merely in relieving symptoms bu...

Disclaimer - All information and content on this site are for information and educational purposes only. The information should not be used for either diagnosis or treatment or both for any health related problem or disease. Always seek the advice of a qualified physician for medical diagnosis and treatment. Full Disclaimer

© All Rights Reserved 1997 - 2021

This site uses cookies to deliver our services. By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Use