Cardio Trial Shows Lesser Waiting Time and Admission Into ED

by Ramya Rachamanti on  September 4, 2019 at 6:11 PM Heart Disease News
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New protocol enables 70% of the patients admitted to emergency department(ED) with chest pain in Australian hospitals to get discharged safely in a shorter span of time compared to the present protocol, according to Flinders University Professor Derek Chew.
Cardio Trial Shows Lesser Waiting Time and Admission Into ED
Cardio Trial Shows Lesser Waiting Time and Admission Into ED

The world-first 'RAPID-TnT' trial focuses on a more sensitive cardiac blood test for a protein called Troponin T, paired with a faster testing protocol.

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Current protocols see patients with the suspected acute coronary syndrome (ACS) tested upon presentation and then re-tested three hours later to compare protein levels.

Under the trial, patients presenting to the hospital were randomly allocated to a 0-1 hour testing group or 0-3 hour testing group. Patients in the one-hour follow-up group on average spent one hour less in the emergency room and were significantly less likely to be admitted to hospital (33.2% compared to 45.5%)

"Currently there are around 30,000 ED presentations for chest pain each year in South Australia, so that represents a large number of people not unnecessarily taking up a hospital bed," says Matthew Flinders Fellow Professor Chew, also Network Director of Cardiology at Flinders Medical Centre, and leader of the Heart and Vascular Health Research program at SAHMRI.

"We continued to monitor both groups of patients and, over the next 30 days, there was no difference in the ongoing health between the two groups.

"We've shown the one-hour follow-up protocol is safe for patients. The benefits for the system as a whole are reducing crowding in EDs and reducing unnecessary hospital admissions," he says, adding wait times and admissions could be reduced even further by developing an artificial intelligence program to support doctors' decisions.

"Understandably, doctors err on the side of caution when it comes to the health of their patients. They would get a great deal of confidence from an electronic system which can accurately estimate the risk of heart attack with help from a vast database of blood test results which are measured against future health outcomes," says Professor Chew.

South Australia's Health and Wellbeing Minister Stephen Wade says this "exciting research could be a game-changer" for patients with suspected heart attacks, with potential to "dramatically cut wait time in our EDs".

"It shows our health services are services which learn and encourage learning. Yet again South Australia is leading the world in best practice in medicine," Mr Wade says. "It demonstrates how our home-grown research can drive better outcomes for patients."

Investigations for suspected acute coronary syndrome (ACS) accounts for about 10% of the 7 million presentations at Australian EDs every year. However, a significant number of these patients present with "undifferentiated" symptoms such as chest pain or shortness of breath that may or may not reflect ACS.

RAPID-TnT (Rapid Assessment of Possible ACS In the ED with high sensitivity Troponin T), a randomised trial involved more than 3000 patients at four large metropolitan hospitals in Adelaide, was developed in consultation with South Australian and national public hospital and other universities.

Professor Chew says: "Given the demands on our EDs, it is essential that we establish effective, evidence-based ways to quickly distinguish those who are having a heart attack from those who aren't and who can safely go home."

"While it is critical that patients with chest pain and shortness of breath present at EDs, we know upon investigation that a large proportion of these patients are not having a heart attack," Professor Chew says.

Source: Eurekalert

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