'Weekend Effect' Does Not Apply to Cardiac Arrests: Study

Weekend survival rates of cardiac arrest patients are no different from weekday. Hence, researchers caution that the weekend effect does apply to some of the heart problems.

People admitted with a cardiac arrest over the weekend do not face a higher risk of dying compared with those admitted during the week, reports a new study. The findings of the study are presented at the British Cardiovascular Society Annual Conference.

The research led by Dr. Rahul Potluri, founder of the ACALM study unit at Aston University, investigated 4,803 people going to the hospital with a cardiac arrest. The team looked at five-year survival for people suffering a cardiac arrest and being treated in an NHS hospital. They found that there were no differences in survival for those admitted on the weekend.

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‘Weekend survival rates of cardiac arrest patients are no different from weekday. Hence, researchers caution that the weekend effect does apply to some of the heart problems.’
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The research was adjusted to account for external factors which could influence death rates, such as age, gender, ethnic group, and the most common causes of death in the UK.

A cardiac arrest is when an electrical fault in the heart occurs, causing it to stop pumping blood round the body suddenly. The chances of surviving an out-of-hospital cardiac arrest are around 1 in 10, but with swiftly-administered CPR and the use of a defibrillator, a huge difference can be made to the chances of survival.

This study follows on from work previously presented at the BCS conference suggesting that there is a 'weekend effect' in people going to the hospital with heart failure or atrial fibrillation, the most common type of abnormal heart rhythm. However, the presence of cardiac arrest teams working 24 hours a day, all year round, could be responsible for the same standard of care and outcome of those suffering a cardiac arrest whether they are being treated in the week or at the weekend.

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Dr. Rahul Potluri, Clinical Lecturer in Cardiology at Aston Medical School, said:

"No matter which day of the week someone goes to the hospital with a cardiac arrest, they have the same chance of survival, and that should be hugely reassuring to the public.

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"By no means is the weekend effect a blanket phenomenon. We know that it does exist for people affected by other heart conditions. It's therefore important to tease out who is affected by the weekend effect through research to ensure that specialist healthcare services are delivered when and where they are needed most."

Professor Metin Avkiran, Associate Medical Director at the British Heart Foundation, said:

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"This is a success story and shows the life-saving importance of specialist teams working in the NHS. A cardiac arrest is a medical emergency, and statistics show that for every minute that passes without CPR and defibrillation, a person's chance of survival decreases by around 10 percent.

"If you see someone who has suddenly collapsed and is unresponsive, it is vital that you call 999 and start administering CPR immediately to increase their chances of survival. When the emergency services arrive, you can rest assured that you've done your bit and the specialists are ready and waiting to take over."

Dr. Shajil Chalil, the Consultant Cardiologist at Blackpool Teaching Hospitals NHS Foundation Trust and co-author, said

"You can't choose when you're struck down by a devastating cardiac arrest. But our research potentially highlights the major value of cardiac arrest teams in hospitals set-up to ensure optimal care for these heart patients every minute of every day."

Source-Eurekalert