| Hospital Specific Reports |
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| Balloon Angioplasty (PTCA) |
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Oregon 2004
| What is a Balloon Angioplasty?* |
Balloon angioplasty is also known as angioplasty, percutaneous transluminal coronary angioplasty (PTCA), percutaneous coronary intervention (PCI), or coronary artery balloon dilation. During this procedure, a catheter-guided balloon is used to open a narrowed coronary artery. A stent (a wire-mesh tube that expands to hold the artery open) is usually placed at the narrowed section during angioplasty. Angioplasty with stent placement has become the first choice of treatment for heart attack if it can be performed in a timely manner and is a common procedure in large medical centers in the United States.
For additional information on balloon angioplasty.
* Adapted with permission from Healthwise® Knowledgebase, © 1995-2005 Healthwise, Incorporated, P.O. Box 1989, Boise, Idaho 83701. ALL RIGHTS RESERVED
| What do these indicators mean? |
Volume. The number of patients who underwent balloon angioplasty is displayed as the volume. Balloon angioplasty is highly specialized, and staff at hospitals that perform more of these surgeries may be more familiar with possible complications that can occur. Therefore, performing more of these surgeries may lead to better outcomes. Volume is not a direct measure of the quality of care, but is useful in gauging how much experience a particular hospital has for this procedure.
Research indicates that performing at least 400 surgeries per year may lead to better patient outcomes. In Oregon, fourteen hospitals performed at least one balloon angioplasty in 2004, and six hospitals performed 400 or more.
Death Rate. The balloon angioplasty death rate is the percent of patients admitted for balloon angioplasty who died in the hospital. However, some patients are sicker or more difficult to treat, and some hospitals admit more of these complex patients than others. Each hospital’s death rate is adjusted to help account for differences in these factors, but keep in mind that the adjustment is not perfect. The adjusted death rate is presented in the displays that follow.
The average death rate for balloon angioplasty in the United States was 1.3% in 2002. In Oregon, the death rate was 1.4% in 2004. This report uses the statewide average as the reference rate.
Gray lines are displayed with each hospital rate. These lines represent the amount of random variation or “noise” in the data. If the gray line crosses the state average, the hospital rate is “within the margin of error” and therefore not statistically different than the state average for this procedure. The margin of error is wider for hospitals with fewer balloon angioplasty patients.
| What do the symbols mean? |
The symbols on this chart tell you which differences are large enough to be considered “statistically significant,” or outside the “margin of error”. Statistical differences are based on the margin of errors described above.
- If a hospital’s rate is significantly lower than the state average, it gets a plus symbol
- If a hospital’s rate is significantly higher than the state average, it gets a cross symbol
- If a hospital’s rate is statistically neither higher nor lower than the state average (within the margin of error), no symbol is shown.
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| Balloon Angioplasty Volume |
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Oregon 2004
Notes
- Hospitals not shown performed fewer than 5 of these procedures in 2004.
- Applies to adults 40 years of age and older.
- Statewide Balloon Angioplasty volume was 6,439 in 2004
- See Technical Documentation for more detail
- Hospitals that submitted additional information about their volume are listed below each graph; click on the hospital name to access their comments.
- The Agency for Healthcare Research and Quality indicates that performing more than 400 cases per year may lead to better outcomes.
The following hospitals have provided comments regarding these figures:
Hospitals not shown had fewer than 5 cases in the reporting year.
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The following hospitals have provided comments regarding these figures:
Hospitals not shown had fewer than 5 cases in the reporting year.
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The following hospitals have provided comments regarding these figures:
Hospitals not shown had fewer than 5 cases in the reporting year.
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The following hospitals have provided comments regarding these figures:
Hospitals not shown had fewer than 5 cases in the reporting year.
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The following hospitals have provided comments regarding these figures:
Hospitals not shown had fewer than 5 cases in the reporting year.
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| Balloon Angioplasty (PTCA) |
|
Oregon 2004
| What is a Balloon Angioplasty?* |
Balloon angioplasty is also known as angioplasty, percutaneous transluminal coronary angioplasty (PTCA), percutaneous coronary intervention (PCI), or coronary artery balloon dilation. During this procedure, a catheter-guided balloon is used to open a narrowed coronary artery. A stent (a wire-mesh tube that expands to hold the artery open) is usually placed at the narrowed section during angioplasty. Angioplasty with stent placement has become the first choice of treatment for heart attack if it can be performed in a timely manner and is a common procedure in large medical centers in the United States.
For additional information on balloon angioplasty.
*Adapted with permission fromHealthwise® Knowledgebase, © 1995-2005 Healthwise, incorporated, P.O. Box 1989, Boise, Idaho 83701. ALL RIGHTS RESERVED
| What do these indicators mean? |
Volume. The number of patients who underwent balloon angioplasty is displayed as the volume. Balloon angioplasty is highly specialized, and staff at hospitals that perform more of these surgeries may be more familiar with possible complications that can occur. Therefore, performing more of these surgeries may lead to better outcomes. Volume is not a direct measure of the quality of care, but is useful in gauging how much experience a particular hospital has for this procedure.
Research indicates that performing at least 400 surgeries per year may lead to better patient outcomes. In Oregon, fourteen hospitals performed at least one balloon angioplasty in 2004, and six hospitals performed 400 or more.
Death Rate. The balloon angioplasty death rate is the percent of patients admitted for balloon angioplasty who died in the hospital. However, some patients are sicker or more difficult to treat, and some hospitals admit more of these complex patients than others. Each hospital’s death rate is adjusted to help account for differences in these factors, but keep in mind that the adjustment is not perfect. The adjusted death rate is presented in the displays that follow.
The average death rate for balloon angioplasty in the United States was 1.3% in 2002. In Oregon, the death rate was 1.4% in 2004. This report uses the statewide average as the reference rate.
Horizontal lines are displayed with each hospital rate. These lines represent the amount of random variation or “noise” in the data. If the gray line crosses the state average, the hospital rate is “within the margin of error” and therefore not statistically different than the state average for this procedure. The margin of error is wider for hospitals with fewer balloon angioplasty patients.
| What do the symbols mean? |
The symbols on this chart tell you which differences are large enough to be considered “statistically significant,” or outside the “margin of error”. Statistical differences are based on the margin of errors described above.
- If a hospital’s rate is significantly lower than the state average, it gets a plus symbol
- If a hospital’s rate is significantly higher than the state average, it gets a cross symbol
- If a hospital’s rate is statistically neither higher nor lower than the state average (within the margin of error), no symbol is shown.
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| Balloon Angioplasty Death Rate |
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Oregon 2004
The symbols on this chart tell you which differences are outside the margin of error:
Lower than the state average
Higher than the state average
No symbol The hospital’s rate is within the margin of error and therefore not statistically different than the state average for this condition
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Additional Notes
- Number of balloon angioplasties performed appears in parentheses. Hospitals not shown performed fewer than 30 of these procedures in 2004.
- Rates have been adjusted for age, sex, and Risk of death
- Applies to adults 40 years of age and older.
- See Technical Documentation for more detail
- Hospitals that submitted additional information about their death rates are listed below each graph; click on the hospital name to access their comments.
- Lower rates may represent better quality.
The following hospitals have provided comments regarding these figures:
*National data source: National rate is from 2002 Nationwide Inpatient Sample (NIS).
Number of cases in parentheses. Hospitals not shown had fewer than 30 cases in the reporting year.
Horizontal lines represent the margin of error (based on 95% confidence intervals)
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The following hospitals have provided comments regarding these figures:
*National data source: National rate is from 2002 Nationwide Inpatient Sample (NIS).
Number of cases in parentheses. Hospitals not shown had fewer than 30 cases in the reporting year.
Horizontal lines represent the margin of error (based on 95% confidence intervals)
|
The following hospitals have provided comments regarding these figures:
*National data source: National rate is from 2002 Nationwide Inpatient Sample (NIS).
Number of cases in parentheses. Hospitals not shown had fewer than 30 cases in the reporting year.
Horizontal lines represent the margin of error (based on 95% confidence intervals)
|
The following hospitals have provided comments regarding these figures:
*National data source: National rate is from 2002 Nationwide Inpatient Sample (NIS).
Number of cases in parentheses. Hospitals not shown had fewer than 30 cases in the reporting year.
Horizontal lines represent the margin of error (based on 95% confidence intervals)
|
The following hospitals have provided comments regarding these figures:
*National data source: National rate is from 2002 Nationwide Inpatient Sample (NIS).
Number of cases in parentheses. Hospitals not shown had fewer than 30 cases in the reporting year.
Horizontal lines represent the margin of error (based on 95% confidence intervals)
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