News | Sudden Cardiac Arrest | July 11, 2017

Health Insurance Expansion Linked to Fewer Sudden Cardiac Arrests

Study shows incidence of cardiac arrest dropped significantly among previously uninsured middle-aged adults who acquired health insurance through the Affordable Care Act

Health Insurance Expansion Linked to Fewer Sudden Cardiac Arrests

July 11, 2017  – The incidence of sudden cardiac arrest, an often deadly loss of heart function, declined significantly among previously uninsured adults who acquired health insurance through the Affordable Care Act, a new study shows. 

The findings, published recently in the Journal of the American Heart Association, underscore how health insurance can affect outcomes. Most adults in the study gained insurance through Medicaid expansion, a jointly funded federal-state health insurance program for low-income people that was expanded under the federal law, also known as Obamacare.

Investigators based their analysis on emergency medical services in an urban Oregon county before and after the insurance expansion mandated by the law.

Among previously uninsured adults ages 45 to 64, the incidence of cardiac arrest decreased by 17 percent. The incidence remained the same among adults age 65 and older, a group that had consistently high rates of health insurance coverage before and after the ACA, primarily through Medicare.

"Cardiac arrest is a devastating and under-recognized cause of premature death for both men and women age 45 and older,” said Eric Stecker, M.D., MPH, associate professor of cardiology at Oregon Health & Science University's Knight Cardiovascular Institute in Portland, Ore., and the study's lead author. "Health insurance allows people to engage in regular medical care, which is crucial for the prevention of cardiovascular disease and the diagnosis and treatment of conditions that can cause cardiac arrest.”

More than 350,000 out-of-hospital cardiac arrests happen yearly in the United States. Although the terms "sudden cardiac arrest” and "heart attack” often are used interchangeably, the conditions are vastly different. A heart attack is caused when one of the major arteries leading to the heart becomes clogged, usually with plaque, disrupting the flow of blood to the heart muscle. A sudden cardiac arrest is an electrical disturbance in the heart rhythm that causes the heart to stop beating. Patients may have little or no warning, and the disorder usually causes instantaneous death.

"Because so few survive a sudden cardiac arrest, it is imperative that we be able to predict which patients are the most vulnerable,” said the study's senior author, Sumeet Chugh, M.D., director of the Heart Rhythm Center at the Cedars-Sinai Heart Institute in Los Angeles. "Effective primary prevention is the only way to make a significant impact on this problem. Fewer than 10 percent of these patients are going to make it out of the hospital alive. By the time we dial 911, it's much too late for most of them.”

The findings came out of a larger research enterprise called the Oregon Sudden Unexpected Death Study, a comprehensive, 16-hospital, multiyear assessment of cardiac deaths in the Portland metropolitan area, home to 2.4 million people. The study, led by Chugh, has been underway for more than a decade. Data collected from it provides Chugh and his team with unique, community-based information to mine for answers to what causes sudden cardiac arrest.

Researchers examined records for emergency medical services in Multnomah County, Oregon, to identify patients with out-of-hospital cardiac arrest. They compared this information to U.S. Census Bureau data for the county's adult population in the years before ACA implementation (2011-2012) and after the law took effect (2014-2015).

The investigators caution that although the study shows a strong association between health insurance and lower rates of cardiac arrest, it does not prove cause and effect. If larger studies among more diverse groups of patients confirm these findings, that would potentially have major public health implications, the study's authors said.

"It is crucial to more comprehensively identify the health benefits of insurance and to carefully consider public policies that affect the number of uninsured Americans,” Stecker said.

Co-authors are Kyndaron Reinier, Ph.D., MPH; Carmen Rusinaru, M.D., Ph.D.; Audrey Uy-Evanado, M.D.; Jonathan Jui, M.D., MPH; and Sumeet Chugh, M.D. Author disclosures are on the manuscript.

This work was supported by the National Heart, Lung, and Blood Institute.

For more information: www.jaha.ahajournals.org

Related Content

New FDA Proposed Rule Alters Informed Consent for Clinical Studies
News | Cardiovascular Clinical Studies | November 19, 2018
The U.S. Food and Drug Administration (FDA) is proposing to add an exception to informed consent requirements for...
A key slide from Elnabawi's presentation, showing cardiac CT plaque evaluations, showing the impact of psoriasis medication on coronary plaques at baseline and one year of treatment. It shows a reversal of vulnerable plaque development. #SCAI, #SCAI2018

A key slide from Elnabawi's presentation, showing cardiac CT plaque evaluations, showing the impact of psoriasis medication on coronary plaques at baseline and one year of treatment. It shows a reversal of vulnerable plaque development.  

Feature | Cardiovascular Clinical Studies | May 14, 2018
May 14, 2018 – New clinical evidance shows common therapy options for psoriasis (PSO), a chronic inflammatory skin di
Intravenous Drug Use is Causing Rise in Heart Valve Infections, Healthcare Costs. #SCAI, #SCAI2018
News | Cardiovascular Clinical Studies | May 14, 2018
May 14, 2018 — The opioid drug epidemic is impacting cardiology, with a new study finding the number of patients hosp
Patient Enrollment Completed in U.S. IDE Study of THERMOCOOL SMARTTOUCH SF Catheter
News | Cardiovascular Clinical Studies | March 15, 2018
March 15, 2018 –  Johnson & Johnson Medical Devices Companies announced today that Biosense Webster, Inc., who wo
Lexington Begins HeartSentry Clinical Trial
News | Cardiovascular Clinical Studies | February 20, 2018
February 20, 2018 – Lexington Biosciences, Inc., a development-stage medical device company, announced the commenceme
Endologix Completes Patient Enrollment in the ELEVATE IDE Clinical Study
News | Cardiovascular Clinical Studies | February 06, 2018
February 6, 2018 – Endologix, a developer and marketer of treatments for aortic disorders, announced the completion o
12-Month Results from Veryan Medical's MIMICS-2 IDE Study Presented at LINC
News | Cardiovascular Clinical Studies | February 01, 2018
February 1, 2018 – Thomas Zeller (Bad Krozingen, Germany) presented the 12-month results from Veryan Medical’s MIMICS
LimFlow Completes U.S. Feasibility Study Enrollment, Receives FDA Device Status
News | Cardiovascular Clinical Studies | February 01, 2018
February 1, 2018 –  LimFlow SA, developer of minimally-inv
ESC 2017 late breaking trial hot line study presentations.
News | Cardiovascular Clinical Studies | September 12, 2017
September 12, 2017 – The European Society of Cardiology (ESC) Congress 2017 includes several Hot Line Late-breaking C
U.K., NHS studies, weekend effect, hospital admission, atrial fibrillation, heart failure
News | Cardiovascular Clinical Studies | June 28, 2016
New research shows patients admitted to National Health Service (NHS) hospitals in the United Kingdom for atrial...
Overlay Init