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CT Scans to Determine Heart Disease in the Emergency Room
November 28, 2007PHILADELPHIA - In the future, patients who arrive at a hospital Emergency Department complaining of chest pain may be diagnosed with a sophisticated CT scan. If the diagnosis is negative, the patient can go home-and the total time at the hospital will be much shorter than it is today.
That is the theory behind a study being presented at the RSNA (Abstract ID: 5009389; Monday, November 26, 3:10 p.m.) by Rajan Agarwal, M.D., a resident in Radiology at the University of Pennsylvania School of Medicine.
"The cost of chest pain triage (where patients in the Emergency Department are prioritized based on their symptoms) and management has been estimated to be as high as $8 billion annually, with most patients ultimately not having to remain in the hospital. Therefore," Dr. Agarwal states, "there is a tremendous opportunity to reduce health care costs if we can demonstrate the cost-effectiveness of this procedure with low-risk patients who go to the Emergency Department."
Further, this reduced length of stay improves resource utilization by decreasing costs, improving inpatient bed shortages and reducing crowding in the Emergency Department.
In the study, a total of 202 patients, older than age 30, who came to the Emergency Department at the Hospital of the University of Pennsylvania between October 2005 and February 2007, and whose primary complaint was chest pain, were given an electrocardiogram and a specialized CT scan.
Patients were excluded from the study who were allergic to an iodine contrast, had an abnormal heart rate or could not take beta blockers. Patients who were admitted to the hospital were also excluded.
"We looked to determine the length of stay and times between critical points in the treatment of low-risk patients," Dr. Agarwal explained.
"Patients were divided into three areas: all patients who received CT scans; patients who received the scans during 7 a.m. to 6 p.m. (ON hours) when the scans were available and 6 p.m. to 6 a.m. (OFF hours) when the scans were not available.
Results showed that patients who came into the Emergency Department during ON hours spent a total of 9 hours and 39 minutes in the department before being discharged; patients who came to the Emergency Department during OFF hours spent a total of 12 hours and 15 minutes in the unit. Patients who were referred to the CDU (Clinical Decision Unit, which provided the CT scan, as well as additional evaluation and observation) spent 21 hours and 50 minutes in the hospital if they came during ON hours and 18 hours and 38 minutes if they came during OFF hours.
Future studies, Dr. Agarwal suggests, will look at all the costs, including lab tests and diagnostic tests, associated with a low-risk patient's visit to the Emergency Department.
Editor's Note: For this research presentation, Dr. Agarwal worked with Harold Litt, M.D., Ph.D., assistant professor of Radiology and Chief, Cardiovascular Imaging, and Judd E. Hollander, M.D., professor of Emergency Medicine.
The University of Pennsylvania Health System
Further, this reduced length of stay improves resource utilization by decreasing costs, improving inpatient bed shortages and reducing crowding in the Emergency Department.
In the study, a total of 202 patients, older than age 30, who came to the Emergency Department at the Hospital of the University of Pennsylvania between October 2005 and February 2007, and whose primary complaint was chest pain, were given an electrocardiogram and a specialized CT scan.
Patients were excluded from the study who were allergic to an iodine contrast, had an abnormal heart rate or could not take beta blockers. Patients who were admitted to the hospital were also excluded.
"We looked to determine the length of stay and times between critical points in the treatment of low-risk patients," Dr. Agarwal explained.
"Patients were divided into three areas: all patients who received CT scans; patients who received the scans during 7 a.m. to 6 p.m. (ON hours) when the scans were available and 6 p.m. to 6 a.m. (OFF hours) when the scans were not available.
Results showed that patients who came into the Emergency Department during ON hours spent a total of 9 hours and 39 minutes in the department before being discharged; patients who came to the Emergency Department during OFF hours spent a total of 12 hours and 15 minutes in the unit. Patients who were referred to the CDU (Clinical Decision Unit, which provided the CT scan, as well as additional evaluation and observation) spent 21 hours and 50 minutes in the hospital if they came during ON hours and 18 hours and 38 minutes if they came during OFF hours.
Future studies, Dr. Agarwal suggests, will look at all the costs, including lab tests and diagnostic tests, associated with a low-risk patient's visit to the Emergency Department.
Editor's Note: For this research presentation, Dr. Agarwal worked with Harold Litt, M.D., Ph.D., assistant professor of Radiology and Chief, Cardiovascular Imaging, and Judd E. Hollander, M.D., professor of Emergency Medicine.
The University of Pennsylvania Health System
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Heart function significantly improved in children and young adults with single-ventricle congenital heart disease who have had the Fontan operation following treatment with sildenafil, a drug used to treat erectile dysfunction and pulmonary hypertension, say researchers from The Children's Hospital of Philadelphia.
Study raises concerns about outdoor second-hand smoke
Indoor smoking bans have forced smokers at bars and restaurants onto outdoor patios, but a new University of Georgia study in collaboration with the Centers for Disease Control and Prevention suggests that these outdoor smoking areas might be creating a new health hazard.
Night Beat, Overtime and a Disrupted Sleep Pattern Can Harm Officers' Health
A police officer who works the night shift, typically from 8 p.m. to 4 a.m., already is at a disadvantage when it comes to getting a good "night's" sleep.
Your Own Stem Cells Can Treat Heart Disease
The largest national stem cell study for heart disease showed the first evidence that transplanting a potent form of adult stem cells into the heart muscle of subjects with severe angina results in less pain and an improved ability to walk. The transplant subjects also experienced fewer deaths than those who didn't receive stem cells.
Vitamin B niacin offers no extra benefit to statin therapy in seniors already diagnosed with CAD
The routine prescription of extended-release niacin, a B vitamin (1,500 milligrams daily), in combination with traditional cholesterol-lowering therapy offers no extra benefit in correcting arterial narrowing and diminishing plaque buildup in seniors who already have coronary artery disease, a new vascular imaging study from Johns Hopkins experts shows.
Heart and bone damage from low vitamin D tied to declines in sex hormones
Researchers at Johns Hopkins are reporting what is believed to be the first conclusive evidence in men that the long-term ill effects of vitamin D deficiency are amplified by lower levels of the key sex hormone estrogen, but not testosterone.
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