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In this edition of “How I will treat my next patient,” I focus on a recent presentation at the American Society for Radiation Oncology meeting regarding the association of recent closures in women’s health clinics with cervical cancer outcomes and on a publication regarding guideline-concordant radiation exposure and organizational characteristics of lung cancer screening programs.
Cervical cancer screening and outcomes
Between 2010 and 2013, nearly 100 women’s health clinics closed in the United States because of a variety of factors, including concerns by state legislatures about reproductive services. Amar J. Srivastava, MD, and colleagues, performed a database search to determine the effect of closures on cervical cancer screening, stage, and mortality (ASTRO 2019, Abstract 202). The researchers used the Behavioral Risk Factors Surveillance Study, which provided data from 197,143 cases, to assess differences in screening availability in 2008-2009 (before the closures). They used the Surveillance, Epidemiology, and End Results (SEER) registry data from 2014-2015 (after) on 10,652 patients to compare stage at diagnosis and disease-specific mortality in states with women’s health clinic closures and states without closures.
They found that the cervical cancer screening rate in states that had a decline in the number of women’s health clinics was 1.63% lower than in states that did not lose clinics. The disparity was greater in medically underserved subgroups: Hispanic women, women aged 21-34 years, unmarried women, and uninsured women.
Early-stage diagnosis was also significantly less common in states that had a decreased number of women’s health clinics – a 13.2% drop – and the overall mortality rate from cervical cancer was 36% higher. The difference was even higher (40%) when comparing only metro residents. All of these differences between states with and without closures were statistically significant.
How these results influence clinical practice
The law of unintended consequences is that the actions of people, and especially of governments, will have effects that are unanticipated or unintended. All oncologists understand this law – we live it every day.
The data generated by Dr. Srivastava and colleagues bring to mind two presentations at the 2019 annual meeting of the American Society of Clinical Oncology: the impact of Medicaid Expansion on racial disparities in time to cancer treatment (LBA 1) and the impact of the Affordable Care Act on early-stage diagnosis and treatment for women with ovarian cancer (LBA 5563). Collectively, they remind us that health care policy changes influence the timeliness of cancer care delivery and disparities in cancer care. Of course, these analyses describe associations, not necessarily causation. Large databases have quality and completeness limitations. Nonetheless, these abstracts and the associated presentations and discussions support the concept that improved access can be associated with improved cancer care outcomes.
In 1936, American sociologist Robert K. Merton described “imperious immediacy of interest,” referring to instances in which an individual wants the intended consequence of an action so badly that he or she purposefully chooses to ignore unintended effects. As a clinical and research community, we are obliged to highlight those effects when they influence our patients’ suffering.
Lung cancer screening
As a component of the Centers for Medicare & Medicaid Services’ requirements for lung cancer screening payment, institutions performing screening must use low-dose techniques and participate in a dose registry. The American College of Radiology (ACR) recommends the dose levels per CT slice (CTDIvol; 3 mGy or lower) and the effective dose (ED; 1 mSr or lower) that would qualify an examination as “low dose,” thereby hoping to minimize the risk of radiation-induced cancers.
Joshua Demb, PhD, and colleagues prospectively collected lung cancer screening examination dose metrics at U.S. institutions in the University of California, San Francisco, International Dose Registry (JAMA Intern Med. 2019 Sep 23. doi: 10.1001/jamainternmed.2019.3893). Only U.S. institutions that performed more than 24 lung cancer screening scans from 2016-2017 were included in the survey (n = 72, more than 12,500 patients). Institution-level factors were collected via the Partnership for Dose trial, including how CT scans are performed and how CT protocols are established at the institutional level.
In a data-dense analysis, the authors found that 65% of institutions delivered, and more than half of patients received, radiation doses above ACR targets. This suggests that both the potential screening benefits and the margins of benefits over risks might be reduced for patients at those institutions. Factors associated with exceeding ACR guidelines for radiation dose were using an “external” medical physicist, although having a medical physicist of any type was more beneficial than not having one; allowing any radiologist to establish or modify the screening protocol, instead of limiting that role to “lead” radiologists; and updating CT protocols as needed, compared with updating the protocols annually.
How these results influence clinical practice
As with the ASTRO 2019 presentation, the law of unintended consequences applies here. Whenever potentially healthy people are subjected to medical procedures to prevent illness or detect disease at early stages, protecting safety is paramount. For that reason, National Comprehensive Cancer Network (NCCN) guidelines are explicit that all lung cancer screening and follow-up scans should use low-dose techniques, unless evaluating mediastinal abnormalities or adenopathy.
The study by Dr. Demb and colleagues critically examined the proportion of lung cancer screening participants receiving guideline-concordant, low-dose examinations and several factors that could influence conformance with ACR guidelines. The results are instructive despite some of the study’s limits including the fact that the database used did not enable long-term follow-up of screened individuals for lung cancer detection or mortality, the survey relied on self-reporting, and the institutional level data was not solely focused on lung cancer screening examinations.
The survey reminds us that the logistics, quality control, and periodic review of well-intentioned programs like lung cancer screening require the thoughtful, regular involvement of teams of professionals who are cognizant of, adherent to, and vigilant about the guidelines that protect the individuals who entrust their care to us.
Dr. Lyss has been a community-based medical oncologist and clinical researcher for more than 35 years, practicing in St. Louis. His clinical and research interests are in the prevention, diagnosis, and treatment of breast and lung cancers and in expanding access to clinical trials to medically underserved populations.
In this edition of “How I will treat my next patient,” I focus on a recent presentation at the American Society for Radiation Oncology meeting regarding the association of recent closures in women’s health clinics with cervical cancer outcomes and on a publication regarding guideline-concordant radiation exposure and organizational characteristics of lung cancer screening programs.
Cervical cancer screening and outcomes
Between 2010 and 2013, nearly 100 women’s health clinics closed in the United States because of a variety of factors, including concerns by state legislatures about reproductive services. Amar J. Srivastava, MD, and colleagues, performed a database search to determine the effect of closures on cervical cancer screening, stage, and mortality (ASTRO 2019, Abstract 202). The researchers used the Behavioral Risk Factors Surveillance Study, which provided data from 197,143 cases, to assess differences in screening availability in 2008-2009 (before the closures). They used the Surveillance, Epidemiology, and End Results (SEER) registry data from 2014-2015 (after) on 10,652 patients to compare stage at diagnosis and disease-specific mortality in states with women’s health clinic closures and states without closures.
They found that the cervical cancer screening rate in states that had a decline in the number of women’s health clinics was 1.63% lower than in states that did not lose clinics. The disparity was greater in medically underserved subgroups: Hispanic women, women aged 21-34 years, unmarried women, and uninsured women.
Early-stage diagnosis was also significantly less common in states that had a decreased number of women’s health clinics – a 13.2% drop – and the overall mortality rate from cervical cancer was 36% higher. The difference was even higher (40%) when comparing only metro residents. All of these differences between states with and without closures were statistically significant.
How these results influence clinical practice
The law of unintended consequences is that the actions of people, and especially of governments, will have effects that are unanticipated or unintended. All oncologists understand this law – we live it every day.
The data generated by Dr. Srivastava and colleagues bring to mind two presentations at the 2019 annual meeting of the American Society of Clinical Oncology: the impact of Medicaid Expansion on racial disparities in time to cancer treatment (LBA 1) and the impact of the Affordable Care Act on early-stage diagnosis and treatment for women with ovarian cancer (LBA 5563). Collectively, they remind us that health care policy changes influence the timeliness of cancer care delivery and disparities in cancer care. Of course, these analyses describe associations, not necessarily causation. Large databases have quality and completeness limitations. Nonetheless, these abstracts and the associated presentations and discussions support the concept that improved access can be associated with improved cancer care outcomes.
In 1936, American sociologist Robert K. Merton described “imperious immediacy of interest,” referring to instances in which an individual wants the intended consequence of an action so badly that he or she purposefully chooses to ignore unintended effects. As a clinical and research community, we are obliged to highlight those effects when they influence our patients’ suffering.
Lung cancer screening
As a component of the Centers for Medicare & Medicaid Services’ requirements for lung cancer screening payment, institutions performing screening must use low-dose techniques and participate in a dose registry. The American College of Radiology (ACR) recommends the dose levels per CT slice (CTDIvol; 3 mGy or lower) and the effective dose (ED; 1 mSr or lower) that would qualify an examination as “low dose,” thereby hoping to minimize the risk of radiation-induced cancers.
Joshua Demb, PhD, and colleagues prospectively collected lung cancer screening examination dose metrics at U.S. institutions in the University of California, San Francisco, International Dose Registry (JAMA Intern Med. 2019 Sep 23. doi: 10.1001/jamainternmed.2019.3893). Only U.S. institutions that performed more than 24 lung cancer screening scans from 2016-2017 were included in the survey (n = 72, more than 12,500 patients). Institution-level factors were collected via the Partnership for Dose trial, including how CT scans are performed and how CT protocols are established at the institutional level.
In a data-dense analysis, the authors found that 65% of institutions delivered, and more than half of patients received, radiation doses above ACR targets. This suggests that both the potential screening benefits and the margins of benefits over risks might be reduced for patients at those institutions. Factors associated with exceeding ACR guidelines for radiation dose were using an “external” medical physicist, although having a medical physicist of any type was more beneficial than not having one; allowing any radiologist to establish or modify the screening protocol, instead of limiting that role to “lead” radiologists; and updating CT protocols as needed, compared with updating the protocols annually.
How these results influence clinical practice
As with the ASTRO 2019 presentation, the law of unintended consequences applies here. Whenever potentially healthy people are subjected to medical procedures to prevent illness or detect disease at early stages, protecting safety is paramount. For that reason, National Comprehensive Cancer Network (NCCN) guidelines are explicit that all lung cancer screening and follow-up scans should use low-dose techniques, unless evaluating mediastinal abnormalities or adenopathy.
The study by Dr. Demb and colleagues critically examined the proportion of lung cancer screening participants receiving guideline-concordant, low-dose examinations and several factors that could influence conformance with ACR guidelines. The results are instructive despite some of the study’s limits including the fact that the database used did not enable long-term follow-up of screened individuals for lung cancer detection or mortality, the survey relied on self-reporting, and the institutional level data was not solely focused on lung cancer screening examinations.
The survey reminds us that the logistics, quality control, and periodic review of well-intentioned programs like lung cancer screening require the thoughtful, regular involvement of teams of professionals who are cognizant of, adherent to, and vigilant about the guidelines that protect the individuals who entrust their care to us.
Dr. Lyss has been a community-based medical oncologist and clinical researcher for more than 35 years, practicing in St. Louis. His clinical and research interests are in the prevention, diagnosis, and treatment of breast and lung cancers and in expanding access to clinical trials to medically underserved populations.
In this edition of “How I will treat my next patient,” I focus on a recent presentation at the American Society for Radiation Oncology meeting regarding the association of recent closures in women’s health clinics with cervical cancer outcomes and on a publication regarding guideline-concordant radiation exposure and organizational characteristics of lung cancer screening programs.
Cervical cancer screening and outcomes
Between 2010 and 2013, nearly 100 women’s health clinics closed in the United States because of a variety of factors, including concerns by state legislatures about reproductive services. Amar J. Srivastava, MD, and colleagues, performed a database search to determine the effect of closures on cervical cancer screening, stage, and mortality (ASTRO 2019, Abstract 202). The researchers used the Behavioral Risk Factors Surveillance Study, which provided data from 197,143 cases, to assess differences in screening availability in 2008-2009 (before the closures). They used the Surveillance, Epidemiology, and End Results (SEER) registry data from 2014-2015 (after) on 10,652 patients to compare stage at diagnosis and disease-specific mortality in states with women’s health clinic closures and states without closures.
They found that the cervical cancer screening rate in states that had a decline in the number of women’s health clinics was 1.63% lower than in states that did not lose clinics. The disparity was greater in medically underserved subgroups: Hispanic women, women aged 21-34 years, unmarried women, and uninsured women.
Early-stage diagnosis was also significantly less common in states that had a decreased number of women’s health clinics – a 13.2% drop – and the overall mortality rate from cervical cancer was 36% higher. The difference was even higher (40%) when comparing only metro residents. All of these differences between states with and without closures were statistically significant.
How these results influence clinical practice
The law of unintended consequences is that the actions of people, and especially of governments, will have effects that are unanticipated or unintended. All oncologists understand this law – we live it every day.
The data generated by Dr. Srivastava and colleagues bring to mind two presentations at the 2019 annual meeting of the American Society of Clinical Oncology: the impact of Medicaid Expansion on racial disparities in time to cancer treatment (LBA 1) and the impact of the Affordable Care Act on early-stage diagnosis and treatment for women with ovarian cancer (LBA 5563). Collectively, they remind us that health care policy changes influence the timeliness of cancer care delivery and disparities in cancer care. Of course, these analyses describe associations, not necessarily causation. Large databases have quality and completeness limitations. Nonetheless, these abstracts and the associated presentations and discussions support the concept that improved access can be associated with improved cancer care outcomes.
In 1936, American sociologist Robert K. Merton described “imperious immediacy of interest,” referring to instances in which an individual wants the intended consequence of an action so badly that he or she purposefully chooses to ignore unintended effects. As a clinical and research community, we are obliged to highlight those effects when they influence our patients’ suffering.
Lung cancer screening
As a component of the Centers for Medicare & Medicaid Services’ requirements for lung cancer screening payment, institutions performing screening must use low-dose techniques and participate in a dose registry. The American College of Radiology (ACR) recommends the dose levels per CT slice (CTDIvol; 3 mGy or lower) and the effective dose (ED; 1 mSr or lower) that would qualify an examination as “low dose,” thereby hoping to minimize the risk of radiation-induced cancers.
Joshua Demb, PhD, and colleagues prospectively collected lung cancer screening examination dose metrics at U.S. institutions in the University of California, San Francisco, International Dose Registry (JAMA Intern Med. 2019 Sep 23. doi: 10.1001/jamainternmed.2019.3893). Only U.S. institutions that performed more than 24 lung cancer screening scans from 2016-2017 were included in the survey (n = 72, more than 12,500 patients). Institution-level factors were collected via the Partnership for Dose trial, including how CT scans are performed and how CT protocols are established at the institutional level.
In a data-dense analysis, the authors found that 65% of institutions delivered, and more than half of patients received, radiation doses above ACR targets. This suggests that both the potential screening benefits and the margins of benefits over risks might be reduced for patients at those institutions. Factors associated with exceeding ACR guidelines for radiation dose were using an “external” medical physicist, although having a medical physicist of any type was more beneficial than not having one; allowing any radiologist to establish or modify the screening protocol, instead of limiting that role to “lead” radiologists; and updating CT protocols as needed, compared with updating the protocols annually.
How these results influence clinical practice
As with the ASTRO 2019 presentation, the law of unintended consequences applies here. Whenever potentially healthy people are subjected to medical procedures to prevent illness or detect disease at early stages, protecting safety is paramount. For that reason, National Comprehensive Cancer Network (NCCN) guidelines are explicit that all lung cancer screening and follow-up scans should use low-dose techniques, unless evaluating mediastinal abnormalities or adenopathy.
The study by Dr. Demb and colleagues critically examined the proportion of lung cancer screening participants receiving guideline-concordant, low-dose examinations and several factors that could influence conformance with ACR guidelines. The results are instructive despite some of the study’s limits including the fact that the database used did not enable long-term follow-up of screened individuals for lung cancer detection or mortality, the survey relied on self-reporting, and the institutional level data was not solely focused on lung cancer screening examinations.
The survey reminds us that the logistics, quality control, and periodic review of well-intentioned programs like lung cancer screening require the thoughtful, regular involvement of teams of professionals who are cognizant of, adherent to, and vigilant about the guidelines that protect the individuals who entrust their care to us.
Dr. Lyss has been a community-based medical oncologist and clinical researcher for more than 35 years, practicing in St. Louis. His clinical and research interests are in the prevention, diagnosis, and treatment of breast and lung cancers and in expanding access to clinical trials to medically underserved populations.