One-quarter of diagnostic catheterizations for suspected coronary artery disease are unnecessary

Study: One-Quarter of Diagnostic Catheterizations for Suspected Coronary Artery Disease are Unnecessary
A quarter of all patients undergoing diagnostic catheterizations for coronary artery disease in New York were rated as inappropriate for the procedure because they were relatively healthy, a new study finds.

(Medical Xpress)—One-quarter of patients undergoing diagnostic catheterizations (DC) for suspected coronary artery disease in New York were rated as inappropriate for the procedure primarily because they were relatively healthy, a recent study finds.

In the study published in January's Circulation: Cardiovascular Interventions, University at Albany School of Public Health and New York State Department of Health researcher Edward Hannan examined New York's Cardiac Diagnostic Catheterization Database to identify undergoing DC for coronary artery disease between 2010 and 2011.

Patients were rated using appropriateness criteria developed by professional societies as appropriate, uncertain, and inappropriate for DC. The relationships between various patient characteristics and the appropriateness ratings were examined, along with the relationships between hospital-level inappropriateness for DC and other hospital-level variables (hospital DC volume and inappropriateness).

Of the 8,986 patients who were rated, 35.3 percent were rated as appropriate, 39.8 percent as uncertain, and 24.9 percent as inappropriate for DC. Of the 2,240 patients rated as inappropriate, 56.7 percent were asymptomatic, had no previous , or had low or intermediate disease risk. An even 36 percent had a previous stress test with low-risk findings and no symptoms, and 7.3 percent were symptomatic, had no previous stress test, or had low pretest probability. 

Further, the study found that while one-quarter of patients undergoing DC for suspected were rated as inappropriate for the procedure, approximately two-thirds of those inappropriate patients had no previous stress test, and approximately 90 percent of the inappropriate patients with no previous stress test were asymptomatic with low or intermediate global risk scores, i.e. the majority of those rated as inappropriate for DC procedures were comparatively healthy.

At the hospital level, the inappropriateness of DC procedures rate ranged from a maximum of 48.8 percent to a minimum of 8.6 percent. The researchers suggest that since a wide range of inappropriateness rates exists across hospitals, hospitals with very high rates could learn best practices DC protocols from hospitals with the lowest rates.

More information: "Appropriateness of Diagnostic Catheterization for Suspected Coronary Artery Disease in New York State." Edward L. Hannan, Zaza Samadashvili, Kimberly Cozzens, Gary Walford, David R. Holmes, Jr, Alice K. Jacobs, Nicholas J. Stamato, Ferdinand J. Venditti, Samin Sharma, and Spencer B. King III. Circ Cardiovasc Interv. 2014; CIRCINTERVENTIONS.113.000741. published online before print January 28 2014, DOI: 10.1161/CIRCINTERVENTIONS.113.000741

Related Stories

Study examines multivessel mortality rates

Dec 29, 2011

(Medical Xpress) -- A new study led by University at Albany School of Public Health Distinguished Professor Emeritus Edward L. Hannan finds a link between higher mortality rates and incomplete revascularization ...

Recommended for you

Real-time volume imaging of hearts

2 hours ago

A new ultrasound system from Siemens enables doctors to carry out heart examinations through the esophagus for the first time. The system supplies 3D images of the heart as well as additional real-time information ...

Post-PCI bleeding rates vary widely across hospitals

20 hours ago

(HealthDay)—Patient case-mix and procedural factors may contribute to wide variation in the hospital rates of bleeding after percutaneous coronary intervention (PCI), according to research published online ...

Most seniors eligible for statin Rx under new guidelines

Nov 25, 2014

(HealthDay)—Most older Americans qualify for treatment with statins under new guidelines for the treatment of blood cholesterol released late last year by the American College of Cardiology and the American ...

User comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.