Medicine
Based on standards set by the U.S. Preventive Services Task Force (USPSTF), the widely respected independent committee of primary care health professionals that for more than 25 years has rigorously reviewed the evidence for benefits of clinical preventive services, President Obama's recent physical examination contained at least 3 screening tests that were either unnecessary or of uncertain health benefit. These tests included:
A prostate-specific antigen (PSA) test for prostate cancer. In 2008, the USPSTF found insufficient evidence that this test reduced mortality from prostate cancer, and 2 subsequent long-term studies of PSA screening published in March 2009 reported no mortality benefit and a very small survival benefit limited to men ages 55 to 69 years, respectively. (President Obama is 48 years old.)
A coronary calcium scan for coronary heart disease. In 2009, the USPSTF found insufficient evidence that patients who test positive and receive treatment for coronary artery blockages have fewer heart attacks compared to similar patients who don't have the test.
CT colonography ("virtual colonoscopy") for colorectal cancer. Most guidelines, including the USPSTF's, recommend that colorectal cancer screening start at age 50 in persons without a family history. However, in 2008 the USPSTF found insufficient evidence that CT colonography was as effective as older, established tests such as fecal occult blood testing and optical colonoscopy, exposed patients to higher doses of radiation, and commonly leads to unforeseen consequences of incidental scan findings in other parts of the abdomen. Based largely on these concerns, in 2009 the Centers for Medicare and Medicaid Services declined to extend Medicare coverage to CT colonography.
A colleague of mine argued that the Leader of the Free World might be subject to different standards than you and me, given the psychological impact it would have on the nation and the world were President Obama to be suddenly felled by a heart attack or belatedly diagnosed with metastatic prostate or colorectal cancer. But this argument cuts both ways. What if his PSA test (reportedly a normal 0.70) had been slightly high, leading to a prostate biopsy that showed a low-grade cancer? Or if the coronary calcium scan had suggested a non-critical blockage in a coronary artery? Or if CT colonography had picked up a suspicious mass on a kidney that couldn't be distinguished from cancer? All of these results would have potentially been false positives, but would have required additional invasive diagnostic tests and treatments with important adverse effects.
The experience of the late President Reagan, who underwent surgery during his Presidency to remove an apparently malignant colon tumor, reminds us that even the perception of poor Presidential health can dramatically affect the psyche of the nation. So regardless of your political persuasion, we should probably be happy that President Obama's physicians gave him a "clean bill of health" this time around. At any rate, I hope that they counseled him to stop smoking and offered medications to help him quit - a preventive service that the USPSTF reaffirmed in 2009 with an unequivocal "A" recommendation.
- "the Best [colorectal Cancer Screening] Test Is The One That Gets Done"
Last week was a busy one for cancer screening. I could choose to criticize the Centers for Disease Control and Prevention's premature guidelines to screen all baby boomers for hepatitis C (which can lead to cirrhosis and liver cancer) or the less-than-sound...
- Screening Tests That Do More Harm Than Good
The U.S. Preventive Services Task Force may have been slow to finalize new recommendations recently, but the same can't be said for its main Evidence-Based Practice Center at Oregon Health and Science University, which has been producing systematic...
- Psa Testing: Will Science Finally Trump Politics?
Maybe the third time will finally be the charm.In early November 2009, the U.S. Preventive Services Task Force voted unanimously to update its 15-month old recommendations on screening for prostate cancer in men younger than 75, changing its previous...
- Challenging Conventional Clinical Wisdom
Over the past few years, I've been invited to speak twice at Lancaster General Hospital (PA) about studies of the effects of screening for colorectal and prostate cancer. Recognizing the need to further explore the controversies surrounding the evidence...
- Information On Colorectal Cancer Screening
If you’re a man or woman over 50, chances are that you’ve been told about the importance of being checked for cancer of the prostate or breast. Finding some types of cancers at early stages (before they cause symptoms) may increase one’s chances...
Medicine
The Presidential Physical
Based on standards set by the U.S. Preventive Services Task Force (USPSTF), the widely respected independent committee of primary care health professionals that for more than 25 years has rigorously reviewed the evidence for benefits of clinical preventive services, President Obama's recent physical examination contained at least 3 screening tests that were either unnecessary or of uncertain health benefit. These tests included:
A prostate-specific antigen (PSA) test for prostate cancer. In 2008, the USPSTF found insufficient evidence that this test reduced mortality from prostate cancer, and 2 subsequent long-term studies of PSA screening published in March 2009 reported no mortality benefit and a very small survival benefit limited to men ages 55 to 69 years, respectively. (President Obama is 48 years old.)
A coronary calcium scan for coronary heart disease. In 2009, the USPSTF found insufficient evidence that patients who test positive and receive treatment for coronary artery blockages have fewer heart attacks compared to similar patients who don't have the test.
CT colonography ("virtual colonoscopy") for colorectal cancer. Most guidelines, including the USPSTF's, recommend that colorectal cancer screening start at age 50 in persons without a family history. However, in 2008 the USPSTF found insufficient evidence that CT colonography was as effective as older, established tests such as fecal occult blood testing and optical colonoscopy, exposed patients to higher doses of radiation, and commonly leads to unforeseen consequences of incidental scan findings in other parts of the abdomen. Based largely on these concerns, in 2009 the Centers for Medicare and Medicaid Services declined to extend Medicare coverage to CT colonography.
A colleague of mine argued that the Leader of the Free World might be subject to different standards than you and me, given the psychological impact it would have on the nation and the world were President Obama to be suddenly felled by a heart attack or belatedly diagnosed with metastatic prostate or colorectal cancer. But this argument cuts both ways. What if his PSA test (reportedly a normal 0.70) had been slightly high, leading to a prostate biopsy that showed a low-grade cancer? Or if the coronary calcium scan had suggested a non-critical blockage in a coronary artery? Or if CT colonography had picked up a suspicious mass on a kidney that couldn't be distinguished from cancer? All of these results would have potentially been false positives, but would have required additional invasive diagnostic tests and treatments with important adverse effects.
The experience of the late President Reagan, who underwent surgery during his Presidency to remove an apparently malignant colon tumor, reminds us that even the perception of poor Presidential health can dramatically affect the psyche of the nation. So regardless of your political persuasion, we should probably be happy that President Obama's physicians gave him a "clean bill of health" this time around. At any rate, I hope that they counseled him to stop smoking and offered medications to help him quit - a preventive service that the USPSTF reaffirmed in 2009 with an unequivocal "A" recommendation.
- "the Best [colorectal Cancer Screening] Test Is The One That Gets Done"
Last week was a busy one for cancer screening. I could choose to criticize the Centers for Disease Control and Prevention's premature guidelines to screen all baby boomers for hepatitis C (which can lead to cirrhosis and liver cancer) or the less-than-sound...
- Screening Tests That Do More Harm Than Good
The U.S. Preventive Services Task Force may have been slow to finalize new recommendations recently, but the same can't be said for its main Evidence-Based Practice Center at Oregon Health and Science University, which has been producing systematic...
- Psa Testing: Will Science Finally Trump Politics?
Maybe the third time will finally be the charm.In early November 2009, the U.S. Preventive Services Task Force voted unanimously to update its 15-month old recommendations on screening for prostate cancer in men younger than 75, changing its previous...
- Challenging Conventional Clinical Wisdom
Over the past few years, I've been invited to speak twice at Lancaster General Hospital (PA) about studies of the effects of screening for colorectal and prostate cancer. Recognizing the need to further explore the controversies surrounding the evidence...
- Information On Colorectal Cancer Screening
If you’re a man or woman over 50, chances are that you’ve been told about the importance of being checked for cancer of the prostate or breast. Finding some types of cancers at early stages (before they cause symptoms) may increase one’s chances...