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Sandoval RL, Horiguchi M, Ukaegbu C, Furniss CS, Uno H, Syngal S, Yurgelun MB. PREMM5 distinguishes sporadic from Lynch syndrome-associated MMR-deficient/MSI-high colorectal cancer. Fam Cancer 2023; 22:459-465. [PMID: 37572151 DOI: 10.1007/s10689-023-00345-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 07/24/2023] [Indexed: 08/14/2023]
Abstract
Current algorithms for diagnosing Lynch syndrome (LS) include multistep molecular tumor tests to distinguish LS-associated from sporadic colorectal cancer (CRC), which add cost and complexity to the evaluation. We hypothesized that PREMM5, a clinical LS prediction tool, could be an alternative approach to screen for LS, thereby lessening the need for specialized molecular diagnostics. We reviewed a consecutively ascertained institutional cohort of 1058 CRC patients on whom pathologic and clinical data were available, including prior LS germline testing. Data from MMR-D/MSI-H CRC patients were reviewed and PREMM5 scores were calculated for each individual. Using a PREMM5 score cutoff ≥ 2.5% to characterize the need for germline testing, we determined the rate of pathogenic/likely pathogenic germline variants (PGVs) in LS genes in patients with PREMM5 scores ≥ 2.5% versus < 2.5%. Sensitivity and negative predictive values (NPV) of PREMM5 were calculated for all MMR-D/MSI-H CRC patients, and those with MLH1-deficient CRC. MMR IHC and/or MSI results were available on 572/1058 cases. We identified 74/572 (12.9%) cases as MMR-D/MSI-H, of which 28/74 (37.8%) harbored a LS PGV. 11/49 (22.4%) patients with MLH1-deficient CRC harbored a LS PGV. PREMM5 had 100% sensitivity (95% CI: 87.7-100 for any MMR-D/MSI-H; 95% CI: 71.5-100 for MLH1-deficient CRC) and 100% NPV (95% CI: 83.2-100 for any MMR-D/MSI-H; 95% CI: 82.4-100 for MLH1-deficient CRC) for identifying LS PGVs in these cohorts. PREMM5 accurately distinguishes LS- from non-LS-associated MMR-D/MSI-H CRC without additional somatic molecular testing. These findings are particularly relevant for limited-resource settings where advanced molecular diagnostics may be unavailable.
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Affiliation(s)
- Renata L Sandoval
- Hospital Sírio-Libanês, Brasília, Brazil
- Dana-Farber Cancer Institute, 450 Brookline Avenue Dana 1126, 02215, Boston, MA, USA
| | - Miki Horiguchi
- Dana-Farber Cancer Institute, 450 Brookline Avenue Dana 1126, 02215, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Chinedu Ukaegbu
- Dana-Farber Cancer Institute, 450 Brookline Avenue Dana 1126, 02215, Boston, MA, USA
| | - C Sloane Furniss
- Dana-Farber Cancer Institute, 450 Brookline Avenue Dana 1126, 02215, Boston, MA, USA
| | - Hajime Uno
- Dana-Farber Cancer Institute, 450 Brookline Avenue Dana 1126, 02215, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Sapna Syngal
- Dana-Farber Cancer Institute, 450 Brookline Avenue Dana 1126, 02215, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
- Brigham and Women's Hospital, Boston, MA, USA
| | - Matthew B Yurgelun
- Dana-Farber Cancer Institute, 450 Brookline Avenue Dana 1126, 02215, Boston, MA, USA.
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Rustgi SD, Kastrinos F. Screening for Lynch Syndrome: Optimal Strategies and Performance Remain a Moving Target. Am J Gastroenterol 2023; 118:259-260. [PMID: 36735557 PMCID: PMC9907004 DOI: 10.14309/ajg.0000000000002132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 11/17/2022] [Indexed: 02/04/2023]
Affiliation(s)
- Sheila D Rustgi
- Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, New York, USA
- Division of Digestive and Liver Diseases, Columbia University Irving Medical Cancer and the Vagelos College of Physicians and Surgeons, New York, New York, USA
| | - Fay Kastrinos
- Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, New York, USA
- Division of Digestive and Liver Diseases, Columbia University Irving Medical Cancer and the Vagelos College of Physicians and Surgeons, New York, New York, USA
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A Canadian Provincial Screening Program for Lynch Syndrome. Am J Gastroenterol 2023; 118:345-353. [PMID: 36219179 DOI: 10.14309/ajg.0000000000002059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Accepted: 10/06/2022] [Indexed: 12/11/2022]
Abstract
INTRODUCTION Manitoba implemented the first Canadian provincial program of reflex screening through mismatch repair immunohistochemistry (MMR-IHC) for all colorectal cancers diagnosed at age 70 years or younger in December 2017. We evaluated compliance to universal reflex testing and for referrals to Genetics for individuals with MMR-deficient tumors. METHODS We searched the provincial pathology database with "adenocarcinoma" in the colorectal specimen pathology reports between March 2018 and December 2020. We cross-referenced with paper and electronic records in the Program of Genetics and Metabolism to determine whether patients with MMR-deficient tumors had been referred for Genetic assessment and what proportion of patients and first-degree relatives accepted an appointment and genetic testing. We performed logistic regression analysis to identify predictors of testing. RESULTS We identified 3,146 colorectal adenocarcinoma specimens (biopsies and surgical resections) from 1,692 unique individuals (mean age 68.66 years, male 57%). Of those aged 70 years or younger (n = 936), 89.4% received MMR-IHC screening. Individual pathologists (categorized by the highest, average, and lowest screening rates) were the biggest predictors of MMR-IHC screening on multivariable analysis (highest vs lowest: odds ratio 17.5, 95% confidence interval 6.05-50.67). While only 53.4% (n = 31) of 58 screen-positive cases were referred by pathologists for genetic assessment, other clinicians referred an additional 22.4% (n = 13), resulting in 75.8% overall referral rate of screen-positive cases. Thirteen (1.4%) patients (1.1%, aged 70 years or younger) were confirmed to experience Lynch syndrome through germline testing, and 8 first-degree relatives (an average of 1.6 per patient) underwent cascade genetic testing. DISCUSSION The first Canadian Lynch syndrome screening program has achieved high rates of reflex testing.
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Modell SM, Schlager L, Allen CG, Marcus G. Medicaid Expansions: Probing Medicaid's Filling of the Cancer Genetic Testing and Screening Space. Healthcare (Basel) 2022; 10:1066. [PMID: 35742117 PMCID: PMC9223044 DOI: 10.3390/healthcare10061066] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 05/25/2022] [Accepted: 06/05/2022] [Indexed: 12/24/2022] Open
Abstract
Cancer is the third largest source of spending for Medicaid in the United States. A working group of the American Public Health Association Genomics Forum Policy Committee reviewed 133/149 pieces of literature addressing the impact of Medicaid expansion on cancer screening and genetic testing in underserved groups and the general population. Breast and colorectal cancer screening rates improved during very early Medicaid expansion but displayed mixed improvement thereafter. Breast cancer screening rates have remained steady for Latina Medicaid enrollees; colorectal cancer screening rates have improved for African Americans. Urban areas have benefited more than rural. State programs increasingly cover BRCA1/2 and Lynch syndrome genetic testing, though testing remains underutilized in racial and ethnic groups. While increased federal matching could incentivize more states to engage in Medicaid expansion, steps need to be taken to ensure that they have an adequate distribution of resources to increase screening and testing utilization.
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Affiliation(s)
- Stephen M. Modell
- Epidemiology, Center for Public Health and Community Genomics, School of Public Health, University of Michigan, M5409 SPH II, 1415 Washington Heights, Ann Arbor, MI 48109, USA
| | - Lisa Schlager
- Public Policy, FORCE: Facing Our Risk of Cancer Empowered, 16057 Tampa Palms Boulevard W, PMB #373, Tampa, FL 33647, USA;
| | - Caitlin G. Allen
- Department of Public Health Sciences, College of Medicine, Medical University of South Carolina, 22 Westedge, Room 213, Charleston, SC 29403, USA;
| | - Gail Marcus
- Genetics and Newborn Screening Unit, North Carolina Department of Health and Human Services, C/O CDSA of the Cape Fear, 3311 Burnt Mill Drive, Wilmington, NC 28403, USA;
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Leiman DA, Cardona DM, Kupfer SS, Rosenberg J, Bocsi GT, Hampel H. American Gastroenterological Association Institute and College of American Pathologists Quality Measure Development for Detection of Mismatch Repair Deficiency and Lynch Syndrome Management. Gastroenterology 2022; 162:360-365. [PMID: 34666049 DOI: 10.1053/j.gastro.2021.09.071] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 08/25/2021] [Accepted: 09/02/2021] [Indexed: 12/02/2022]
Affiliation(s)
- David A Leiman
- Division of Gastroenterology, Duke University School of Medicine, Durham, North Carolina
| | - Diana M Cardona
- Department of Pathology, Duke University School of Medicine, Durham, North Carolina
| | - Sonia S Kupfer
- Section of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, University of Chicago, Chicago, Illinois
| | | | - Gregary T Bocsi
- Department of Pathology, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Heather Hampel
- Division of Human Genetics, The Ohio State University, Columbus, Ohio
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Patel SG, Karlitz JJ, Yen T, Lieu CH, Boland CR. The rising tide of early-onset colorectal cancer: a comprehensive review of epidemiology, clinical features, biology, risk factors, prevention, and early detection. Lancet Gastroenterol Hepatol 2022; 7:262-274. [DOI: 10.1016/s2468-1253(21)00426-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 10/27/2021] [Accepted: 11/01/2021] [Indexed: 02/07/2023]
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Almario CV, Shergill J, Oh J. Measuring and Improving Quality of Colonoscopy for Colorectal Cancer Screening. TECHNIQUES AND INNOVATIONS IN GASTROINTESTINAL ENDOSCOPY 2022; 24:269-283. [PMID: 36778081 PMCID: PMC9910391 DOI: 10.1016/j.tige.2021.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Colorectal cancer (CRC) is largely preventable, yet it remains a major public health issue as it is the third most common and deadly malignancy in the United States. While there are many ways to screen for CRC, colonoscopy remains the gold standard as it is the only test that is both cancer-detecting and cancer-preventing through removal of precancerous polyps. Through identifying and removing neoplastic lesions, colonoscopy reduces CRC incidence by 31%-91% and CRC mortality by 65%-88%. However, colonoscopy is not an infallible test-there is a chance for missed lesions during the exam and there is substantial variation in outcomes among endoscopists. To enhance the quality of colonoscopic exams, and ultimately to improve CRC outcomes, quality indicators have been developed for measuring endoscopists' performance. In this review, we describe the colonoscopic quality indicators and benchmarks recommended by the American Society for Gastrointestinal Endoscopy/American College of Gastroenterology Task Force on Quality in Endoscopy for screening colonoscopies in average-risk individuals. Measuring and monitoring endoscopists' performance on these measures are critical first steps in striving toward conducting high quality exams. We also review the evidence for interventions that aim to improve critical measures including adenoma detection rate, withdrawal time, cecal intubation, and bowel preparation quality. Finally, we provide a preview of the forthcoming Advancing Care for Appropriate Colon Health Merit-Based Incentive Payment System Value Pathway by the Centers for Medicare & Medicaid Services and its potential impact on clinical practice.
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Affiliation(s)
- Christopher V. Almario
- Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California;,Karsh Division of Gastroenterology and Hepatology, Cedars-Sinai Medical Center, Los Angeles, California;,Division of Health Services Research, Cedars-Sinai Medical Center, Los Angeles, California;,Cedars-Sinai Center for Outcomes Research and Education (CS-CORE), Los Angeles, California;,Division of Informatics, Cedars-Sinai Medical Center, Los Angeles, California;,Cancer Prevention & Control Program, Cedars-Sinai Cancer, Los Angeles, California
| | - Jaspreet Shergill
- Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California
| | - Janice Oh
- Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California
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Abstract
Lynch syndrome (LS) is an autosomal dominant hereditary cancer syndrome caused by pathogenic germline variants (PGV) in any of the 4 DNA mismatch repair (MMR) genes, MLH1, MSH2, MSH6, and PMS2, or deletions in EPCAM. LS leads to an increased risk of intestinal and extraintestinal cancers, of which colorectal and endometrial cancers are the most common. Individuals at risk for LS can be identified by using clinical criteria, prediction models, and universal tumor testing. Understanding each of these tools, including limitations and mimics of LS, is essential to the early identification of at-risk individuals.
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Affiliation(s)
- Jennifer K Maratt
- Division of Gastroenterology and Hepatology, Indiana University School of Medicine, 1101 West Tenth Street, Indianapolis, IN 46202, USA; Richard L. Roudebush Veterans Affairs Medical Center, Indianapolis, IN, USA; Regenstrief Institute, Inc, Indianapolis, IN, USA.
| | - Elena Stoffel
- Division of Gastroenterology, Department of Internal Medicine, University of Michigan, 1500 East Medical Center Drive, Ann Arbor, MI 48109, USA; Rogel Cancer Center, Ann Arbor, MI, USA
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The Prevalence of Pathogenic or Likely Pathogenic Germline Variants in a Nationwide Cohort of Young Colorectal Cancer Patients Using a Panel of 18 Genes Associated with Colorectal Cancer. Cancers (Basel) 2021; 13:cancers13205094. [PMID: 34680242 PMCID: PMC8534092 DOI: 10.3390/cancers13205094] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 09/29/2021] [Accepted: 10/06/2021] [Indexed: 11/17/2022] Open
Abstract
INTRODUCTION The prevalence of pathogenic or likely pathogenic germline variants (PGV) in colorectal cancer (CRC) in young patients is seen in approximately one in five patients, with the majority of cases having gene variants associated with Lynch syndrome (LS). The primary aim was to describe the prevalence of 18 genes, all associated with hereditary polyposis and CRC, in a nationwide population of young CRC (yCRC) patients, and outline disease characteristics in patients with or without germline variants. METHODS We screened 98 patients aged 18-40 with CRC diagnosed in 2010-2013 for variants in MSH2, MSH6, MLH1, PMS2, EPCAM, APC, MUTYH, SMAD4, BMPR1A, STK11, PTEN, POLE, POLD1, NTHL1, AXIN2, MSH3, GREM1 and RNF43 using Next Generation Sequencing. Comparisons between patients' characteristics in patients with PGV, and patients without germline variants (NPGV) were analyzed. RESULTS PGV were detected in twenty-four patients (24.5%), and twenty-one patients (21.1%) had variants in the mismatch repair (MMR) genes associated with LS. Variants in the APC and MUTYH genes were detected in 1% and 4%, respectively. Patients with NPGV had more advanced disease with adverse histopathological features. CONCLUSION PGV was detected in one in four yCRC patients, and one in five yCRC patients had disease causing variants in the mismatch repair genes associated with LS.
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When guidelines face reality - Lynch syndrome screening in the setting of public health system in a developing country. J Community Genet 2021; 13:19-29. [PMID: 34623598 DOI: 10.1007/s12687-021-00549-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Accepted: 08/24/2021] [Indexed: 10/20/2022] Open
Abstract
Lynch syndrome (LS) is the most common cause of hereditary colorectal cancer (CRC); however, it is still underrecognized and underdiagnosed. While international guidelines gravitate towards universal screening, the underuse of screening methods has been reported in real-world scenarios. This study aims to evaluate screening for LS among patients diagnosed with CRC in a public cancer center in Brazil and evaluate access to genetic counseling and testing for abnormal screens. For that purpose, all patients with CRC registered in our institution from July 2012 to December 2018 had their charts reviewed. Demographic and clinical characteristics were noted, as well as immunohistochemistry and microsatellite instability analysis results, when available. After applying exclusion criteria, a total of 1234 charts were reviewed. Among these, 257 patients were screened for LS, making up a 20.8% screening rate; when considering Jerusalem criteria, screening rate was 24.5%; for Bethesda criteria, it was 35.1%. Almost 80% of patients fulfilling Amsterdam criteria I/II were screened. There were 64 abnormal screens, from which 40 (62.5%) underwent genetic counseling and 12 (18.7%) underwent genetic testing. We concluded that overall screening rates for LS among CRC patients in a public cancer center in Brazil are low, and still very guided by stringent clinical criteria. Referral to genetic counseling and access to testing is limited, calling the whole process into question. Public policies aiming to raise awareness on hereditary cancer and include genetic testing in the public health system could help improve this scenario.
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Sierra I, Pérez-Mayoral J, Rosado K, Maldonado V, Alicea-Zambrana K, Reyes JS, Torres M, Tous L, Lopéz-Acevedo N, Diaz-Algorrí Y, Carlo-Chevere V, Rodriguez-Quilichini S, Cruz-Correa M. Implementation of Universal Colorectal Cancer Screening for Lynch Syndrome in Hispanics Living in Puerto Rico. J Racial Ethn Health Disparities 2021; 8:1185-1191. [PMID: 33006754 PMCID: PMC8183604 DOI: 10.1007/s40615-020-00876-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 08/13/2020] [Accepted: 09/16/2020] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Colorectal cancer is the leading cause of cancer death in Puerto Rico and third among Hispanics in the USA. Up to 2-4% of colorectal cancer cases are a result of Lynch syndrome (LS), a hereditary cancer syndrome caused by a germline mutation in at least one of the DNA mismatch repair genes. The objective of this study was to determine the prevalence of LS in colorectal tumors during the first 15-months after the implementation of universal tumor-based screening for LS in Puerto Rico. METHODS A total of 317 colorectal tumors were evaluated in a large private pathology laboratory from September 2014 to December 2015. Clinical characteristics were obtained from the pathology reports. Unadjusted and adjusted logistic regression models were used to estimate the magnitude of association (odds ratio [OR] with 95% confidence intervals [CI]) between absent MMR protein expression and patient characteristics. RESULTS Most cases (93.4%) were analyzed by immunohistochemistry; 11.8% (35 of 296) had deficient mismatch repair protein expression. While 29 of the 317 cases were subjected to PCR-based microsatellite instability analysis of which 10.3% (3 of 317) had microsatellite instability. In total, 11.0% of the tumors were reported MMR deficient. These tumors were more likely from females and more likely localized in the proximal colon compared to those with proficient MMR expression. CONCLUSIONS Our data is consistent with the results from other studies including US Hispanics, where approximately 10% of Hispanic individuals with colorectal cancer have microsatellite instability. Our results support universal tumor-based screening for LS among Hispanics in accordance with National Comprehensive Cancer Network guidelines.
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Affiliation(s)
- Isabel Sierra
- Division of Cancer Biology, University of Puerto Rico Comprehensive Cancer Center, San Juan, Puerto Rico
| | - Julyann Pérez-Mayoral
- Division of Cancer Biology, University of Puerto Rico Comprehensive Cancer Center, San Juan, Puerto Rico
| | - Kathia Rosado
- Hato Rey Pathology Laboratories, San Juan, Puerto Rico
| | - Valerie Maldonado
- Department of Allied Health Sciences, San Juan Bautista School of Medicine, Caguas, Puerto Rico
| | | | - José S Reyes
- Colorectal Cancer Surgery Clinic, San Juan, Puerto Rico
| | - Marla Torres
- Colorectal Cancer Surgery Clinic, San Juan, Puerto Rico
| | - Luis Tous
- Colorectal Cancer Surgery Clinic, San Juan, Puerto Rico
| | | | - Yaritza Diaz-Algorrí
- Department of Allied Health Sciences, San Juan Bautista School of Medicine, Caguas, Puerto Rico
| | - Victor Carlo-Chevere
- Department of Medicine, University of Puerto Rico Medical Sciences Campus, PO BOX 365067, San Juan, 00936, Puerto Rico
| | | | - Marcia Cruz-Correa
- Division of Cancer Biology, University of Puerto Rico Comprehensive Cancer Center, San Juan, Puerto Rico.
- Department of Medicine, University of Puerto Rico Medical Sciences Campus, PO BOX 365067, San Juan, 00936, Puerto Rico.
- Department of Biochemistry, University of Puerto Rico Medical Sciences Campus, San Juan, PR, Puerto Rico.
- Johns Hopkins School of Medicine, Baltimore, MD, USA.
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Karlitz JJ, Phillips A, Sorrells KS, Rao S. Genetic Analysis of Archived Tumor Specimens for Hereditary Colorectal Cancer Syndromes in the Cajuns of Louisiana, a US Founder Population. Clin Transl Gastroenterol 2021; 12:e00392. [PMID: 34545850 PMCID: PMC8460225 DOI: 10.14309/ctg.0000000000000392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 07/12/2021] [Indexed: 11/17/2022] Open
Abstract
INTRODUCTION The Louisiana Acadian region (population 1.2 million), home of the Cajuns, has among the highest US colorectal cancer (CRC) rates. Although Cajuns are a known genetic founder population, studies assessing for hereditary CRC have not been performed. METHODS A retrospective review of 2 hospital cancer registries was performed to identify young (<55) Cajun CRC patients in Lafayette, Louisiana (the Acadian region population center), diagnosed from 2003 to 2016. Men were studied because of the higher likelihoods of retaining Cajun surnames for ancestry identification compared with women. Immunohistochemistry for mismatch repair proteins associated with the Lynch syndrome (LS) was performed on tumors. Germline sequencing was performed on adjacent normal tissue of these archived formalin-fixed paraffin-embedded surgical resection specimens for pathogenic variants underlying CRC-associated syndromes, including LS, familial adenomatous polyposis, and others. RESULTS Of 9 young Cajuns, a germline analysis revealed LS in 2 (MLH1 frameshift, MLH1 missense pathogenic variants). Both had immunohistochemistry-deficient MLH1. Two others had the same adenomatous polyposis coli variant of unknown significance (2 algorithms predicting deleterious and probably damaging change), making this a potential familial adenomatous polyposis founder effect candidate. DISCUSSION This is the first study assessing for hereditary CRC in a large US regional founder population. This small study did not identify clear Cajun founder pathogenic variants. However, larger studies are warranted, which could also help clarify the clinical significance of the adenomatous polyposis coli variant of unknown significance. This study is important because it demonstrates that a retrospective tumor analysis can be used to ascertain the prevalence of genetic susceptibility in specific populations.
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Affiliation(s)
- Jordan J. Karlitz
- Division of Gastroenterology, Tulane University School of Medicine, New Orleans, Louisiana, USA
- Division of Gastroenterology, Denver Health Medical Center, University of Colorado School of Medicine, Denver, Colorado, USA
| | - Amanda Phillips
- Department of Family Medicine, Louisiana State University Health Sciences Center - Ochsner University Hospitals and Clinics, Lafayette, Louisiana, USA
| | - Kelly S. Sorrells
- Louisiana State University Health Sciences Center - Ochsner University Hospitals and Clinics, Lafayette, Louisiana, USA
| | - Shanti Rao
- Department of Medicine, Tulane University School of Medicine, New Orleans, Louisiana, USA
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Actkins KV, Srinivasan S, Spees LP, Turbitt E, Allen CG, Roberts MC. Uptake of Genetic Testing Among Patients with Cancer At Risk for Lynch Syndrome in the National Health Interview Survey. Cancer Prev Res (Phila) 2021; 14:927-932. [PMID: 34341014 DOI: 10.1158/1940-6207.capr-21-0073] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 06/14/2021] [Accepted: 07/23/2021] [Indexed: 11/16/2022]
Abstract
Lynch syndrome is the most common inherited cancer syndrome that increases the risk of developing colorectal and endometrial cancer. Universal screening guidelines were first recommended by the Centers for Disease Control and Prevention (CDC) in 2009 and are updated annually by multiple societies. Therefore, one would expect genetic testing rates to increase over time. But testing remains underutilized among those with colorectal or endometrial cancer, even though early detection can improve prognosis and survival rates. In this study, we aimed to understand differences in genetic testing uptake among those with colorectal cancer or endometrial cancer from 2005, 2010, 2015, using data from the National Health Interview Survey (NHIS). We examined genetic testing uptake across cancer-type, age (≤50 or ≥51), sex, race, insurance, and education using a χ2 statistical analysis. Despite an upward genetic testing trend in 2010, we found no significant differences in genetic testing uptake over time. In 2010, non-White individuals experienced the highest increase from 2005 in comparison with White individuals. However, genetic testing rates declined for both groups by 2015. Our findings show that genetic testing for colorectal cancer and endometrial cancer did not increase over a 10-year period in spite of guidelines that recommend testing. PREVENTION RELEVANCE: Genetic testing uptake for colorectal cancer and endometrial cancer has not increased over a 10-year period in spite of universal screening guidelines. More genetic testing education is needed at the provider and patient level to improve screening strategies for cancer patients who are most at risk for Lynch syndrome.
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Affiliation(s)
- Ky'Era V Actkins
- Department of Microbiology, Immunology, and Physiology, Meharry Medical College, Nashville, Tennessee
| | - Swetha Srinivasan
- Division of Pharmaceutical Outcomes and Policy, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Lisa P Spees
- Department of Health Policy and Management, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.,UNC Lineberger Comprehensive Cancer Center, UNC School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Erin Turbitt
- Discipline of Genetic Counselling, Graduate School of Health, University of Technology Sydney, Sydney, New South Wales, Australia
| | - Caitlin G Allen
- Department of Behavioral, Social, and Health Education Sciences, Rollins School of Public Health, Emory University, Atlanta, Georgia
| | - Megan C Roberts
- Division of Pharmaceutical Outcomes and Policy, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina. .,UNC Lineberger Comprehensive Cancer Center, UNC School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
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Aswath K, Welch J, Gubbi S, Veeraraghavan P, Avadhanula S, Gara SK, Dikoglu E, Merino M, Raffeld M, Xi L, Kebebew E, Klubo-Gwiezdzinska J. Co-Occurrence of Familial Non-Medullary Thyroid Cancer (FNMTC) and Hereditary Non-Polyposis Colorectal Cancer (HNPCC) Associated Tumors-A Cohort Study. Front Endocrinol (Lausanne) 2021; 12:653401. [PMID: 34326811 PMCID: PMC8315151 DOI: 10.3389/fendo.2021.653401] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Accepted: 06/11/2021] [Indexed: 12/11/2022] Open
Abstract
Familial non-medullary thyroid cancer (FNMTC) is a form of endocrine malignancy exhibiting an autosomal dominant mode of inheritance with largely unknown germline molecular mechanism. Hereditary nonpolyposis colorectal cancer syndrome (HNPCC) is another hereditary autosomal dominant cancer syndrome which, if proven to be caused by germline mutations in mismatch repair genes (MMR)-MLHL, MSH2, MSH6, PMS2, and EPCAM-is called Lynch syndrome (LS). LS results in hereditary predisposition to a number of cancers, especially colorectal and endometrial cancers. Tumors in LS are characterized by microsatellite instability (MSI) and/or loss of MMR protein expression in immunohistochemistry (IHC). MSI is a rare event in thyroid cancer (TC), although it is known to occur in up to 2.5% of sporadic follicular TC cases. There are limited data on the role of germline MMR variants FNMTC. The goal of this study was to analyze the potential clinical and molecular association between HNPCC and FNMTC. We performed a cohort study analyzing the demographic, clinical, and pathologic data of 43 kindreds encompassing 383 participants (104 affected, 279 unaffected), aged 43.5 [7-99] years with FNMTC, and performed high-throughput whole-exome sequencing (WES) of peripheral blood DNA samples of selected 168 participants (54 affected by FNMTC and 114 unaffected). Total affected by thyroid cancer members per family ranged between 2 and 9 patients. FNMTC was more prevalent in women (68.3%) and characterized by a median tumor size of 1.0 [0.2-5.0] cm, multifocal growth in 44%, and gross extrathyroidal extension in 11.3%. Central neck lymph node metastases were found in 40.3% of patients at presentation, 12.9% presented with lateral neck lymph node metastases, and none had distant metastases. Family history screening revealed one Caucasian family meeting the clinical criteria for FNMTC and HNPCC, with five members affected by FNMTC and at least eight individuals reportedly unaffected by HNPCC-associated tumors. In addition, two family members were affected by melanoma. Genome Analysis Tool Kit (GATK) pipeline was used in variant analysis. Among 168 sequenced participants, a heterozygous missense variant in the MSH2 gene (rs373226409; c.2120G>A; p.Cys707Tyr) was detected exclusively in FNMTC- HNPCC- kindred. In this family, the sequencing was performed in one member affected by FNMTC, HPNCC-associated tumors and melanoma, one member affected solely by HNPCC-associated tumor, and one member with FNMTC only, as well as seven unaffected family members. The variant was present in all three affected adults, and in two unaffected children of the affected member, under the age of 18 years, and was absent in non-affected adults. This variant is predicted to be damaging/pathogenic in 17/20 in-silico models. However, immunostaining performed on the thyroid tumor tissue of two affected by FNMTC family members revealed intact nuclear expression of MSH2, and microsatellite stable status in both tumors that were tested. Although the MSH2 p.Cys707Tyr variant is rare with a minor allele frequency (MAF) of 0.00006 in Caucasians; it is more common in the South Asian population at 0.003 MAF. Therefore, the MSH2 variant observed in this family is unlikely to be an etiologic factor of thyroid cancer and a common genetic association between FNMTC and HNPCC has not yet been identified. This is the first report known to us on the co-occurrence of FNMTC and HNPCC. The co-occurrence of FNMTC and HNPCC-associated tumors is a rare event and although presented in a single family in our large FNMTC cohort, a common genetic background between the two comorbidities could not be established.
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Affiliation(s)
- Kshama Aswath
- Metabolic Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, United States
| | - James Welch
- Metabolic Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Sriram Gubbi
- Metabolic Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Padmasree Veeraraghavan
- Metabolic Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Shirisha Avadhanula
- Department of Endocrinology, Diabetes and Metabolism, Cleveland Clinic, Cleveland, OH, United States
| | - Sudheer Kumar Gara
- National Cancer Institute, National Institutes of Health, Bethesda, MD, United States
| | - Esra Dikoglu
- Metabolic Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Maria Merino
- Metabolic Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Mark Raffeld
- National Cancer Institute, National Institutes of Health, Bethesda, MD, United States
| | - Liqiang Xi
- National Cancer Institute, National Institutes of Health, Bethesda, MD, United States
| | - Electron Kebebew
- Department of Surgery, Stanford University, Stanford, CA, United States
| | - Joanna Klubo-Gwiezdzinska
- Metabolic Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, United States
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Modell SM, Allen CG, Ponte A, Marcus G. Cancer genetic testing in marginalized groups during an era of evolving healthcare reform. J Cancer Policy 2021; 28:100275. [PMID: 35559905 PMCID: PMC8224823 DOI: 10.1016/j.jcpo.2021.100275] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 01/31/2021] [Indexed: 01/08/2023]
Abstract
BACKGROUND The Affordable Care Act and subsequent reforms pose tradeoffs for racial-ethnic, rural, and sex-related groups in the United States experiencing disparities in BRCA1/2 genetic counseling and testing and colorectal cancer screening, calling for policy changes. METHODS A working group of the American Public Health Association Genomics Forum Policy Committee engaged in monthly meetings to examine ongoing literature and identify policy alternatives in the coverage of cancer genetic services for marginalized groups. 589 items were collected; 408 examined. Efforts continued from February 2015 through September 2020. RESULTS African Americans and Latinos have shown 7-8 % drops in uninsured rates since the Exchanges opened. The ACA has increased BRCA1/2 test availability while several disparities remain, including by sex. Rural testing and screening utilization rates have improved. Medicaid expansion and the inclusion of Medicare in the ACA have resulted in mixed improvements in colorectal cancer screening rates in marginalized groups. CONCLUSION Cancer genetic testing and screening to date have only partially benefited from healthcare reforms. Sensitivity to cost concerns and further monitoring of emerging data are needed. A reduction in disparities depends on the availability of private insurance, Medicaid and Medicare to the marginalized. Attention to value-based design and the way cancer benefits are translated into actual testing and screening are crucial. POLICY SUMMARY The findings suggest the need for further benefits-related health agency interpretation of and amendments to the ACA, continued Medicaid and innovative Medicare expansion, and incorporation of cancer services values-based considerations at several levels, aimed at reducing group disparities.
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Affiliation(s)
- Stephen M Modell
- Epidemiology, University of Michigan School of Public Health, M5409 SPH II, 1415 Washington Hts., Ann Arbor, MI, 48109, United States.
| | - Caitlin G Allen
- Behavioral, Social and Health Education Sciences, Rollins School of Public Health, Emory University, 1518 Clifton Rd., Atlanta, GA, 30322, United States
| | - Amy Ponte
- Genedu Health Solutions, 47 Petigru Dr., Beaufort, SC, 29902, United States
| | - Gail Marcus
- Genetics and Newborn Screening Unit, North Carolina Department of Health and Human Services, C/O CDSA of the Cape Fear, 3311 Burnt Mill Dr., Wilmington, NC, 28403, United States
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16
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Abstract
Colorectal cancer screening is essential to detect and remove premalignant lesions to prevent the development of colorectal cancer. Multiple screening modalities are available, including colonoscopy and stool-based testing. Colonoscopy remains the gold standard for detection and removal of premalignant colorectal lesions. Screening guidelines by the American Cancer Society now recommend initiating screening for all average-risk adults at 45 years old. Family history of colorectal cancer, other cancers, and advanced colon polyps are strong risk factors that must be considered in order to implement earlier testing. Epidemiologic studies continue to show disparities in colorectal cancer incidence and mortality and wide variability in screening rates.
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Affiliation(s)
- Eric M Montminy
- Division of Gastroenterology, Tulane University School of Medicine, 1430 Tulane Avenue, New Orleans, LA 70112, USA
| | - Albert Jang
- Department of Internal Medicine, Tulane University School of Medicine, 1430 Tulane Avenue, New Orleans, LA 70112, USA
| | - Michael Conner
- Department of Internal Medicine, Tulane University School of Medicine, 1430 Tulane Avenue, New Orleans, LA 70112, USA
| | - Jordan J Karlitz
- Southeast Louisiana Veterans Health Care System, Gastroenterology Section, 2400 Canal St, Medicine Service, Ste 3H, New Orleans, LA 70119, USA; Division of Gastroenterology, Tulane University School of Medicine, New Orleans, LA 70112, USA.
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17
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Underutilization of Lynch Syndrome Screening at Two Large Veterans Affairs Medical Centers. Dig Dis Sci 2020; 65:3305-3315. [PMID: 32500284 DOI: 10.1007/s10620-020-06340-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Accepted: 05/12/2020] [Indexed: 12/09/2022]
Abstract
BACKGROUND Lynch syndrome (LS) is the most common hereditary colorectal cancer (CRC) syndrome, yet is grossly under-recognized. Multiple professional societies recommend screening all CRCs for LS by performing tumor testing. The veterans affairs system has not adopted universal tumor testing as a national performance metric and leaves screening for LS to clinical care at individual sites. AIMS Describe adherence to LS screening in the VA system. METHODS Dual-center, retrospective review of all CRCs diagnosed between 2010 and 2016. Rates of tumor testing, personal and family history of cancer were extracted from the medical record. Univariate and multivariate regression analysis was performed to determine predictors of tumor-based screening for LS. RESULTS A total of 421 cancers were reviewed. 15.1% of all cancers underwent either MSI and/or IHC for LS screening over the study period. There was improvement in LS screening from 3% of all CRCs in 2010 to 45% of all CRCs in 2016. 34% and 70% of patients did not have documentation of CRC in first- and second-degree relatives, respectively. Of the 73 patients who met one of the Revised Bethesda Criteria or had a PREMM1,2,6 score of ≥ 5, 34% and 56% underwent tumor testing, respectively. Younger age, non-Caucasian race, meeting Bethesda or PREMM1,2,6 criteria and right-sided tumor location were predictors of undergoing tumor testing. CONCLUSIONS CRC tumor screening for LS is grossly inadequate when left to routine clinical care. Our results lend support to implementation of reflexive universal tumor testing within the VA system.
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Bocsi GT, Kang J, Kennedy A, Singh L, Peditto S, Cardona DM. Developing Pathology Measures for the Quality Payment Program-Part I: A Quest for Meaningful Measures. Arch Pathol Lab Med 2020; 144:686-696. [PMID: 32459533 DOI: 10.5858/arpa.2019-0377-oa] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
CONTEXT.— Quality measures assess health care processes, outcomes, and patient perceptions associated with high-quality health care, which is commonly defined as care that is effective, safe, efficient, patient centered, equitable, and timely. Such measures are now being used in order to incentivize provision of high-quality health care. OBJECTIVE.— To meet the goals of the Quality Payment Program, quality measures will be developed from clinical practice guidelines and relevant, peer-reviewed research identifying evidence that the measure addresses 3 areas: a high-priority aspect of health care or a specific national health goal or priority; a meaningful focus, such as leading to a desired health outcome; and a gap or variation in care. DESIGN.— Within the College of American Pathologists (CAP), the Measures and Performance Assessment Subcommittee is tasked with developing useful performance measures. Participating practitioners can then select measures that are meaningful to their respective patients and practices, and reflect the quality of the services they provide. RESULTS.— The CAP developed 23 quality measures for reporting to the Centers for Medicare & Medicaid Services that reflect rigorous clinical evidence and address areas in need of performance improvement. CONCLUSIONS.— Because the implications of reporting on these pathology-specific metrics are significant, these measures and the process by which they were designed are presented here in peer-reviewed fashion. The measures described in this article (part 1) represent recent efforts by the CAP to develop meaningful measures that reflect rigorous clinical evidence and highlight areas with opportunities for performance improvement.
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Affiliation(s)
- Gregary T Bocsi
- From the Department of Pathology, University of Colorado-Anschutz Medical Campus, Aurora (Dr Bocsi); the Department of Pathology, NorthShore University Health System, Evanston, Illinois (Dr Kang); the Advocacy Division, College of American Pathologists, Washington, DC (Mss Kennedy, Singh, and Peditto); and the Department of Pathology, Duke University Medical Center, Durham, North Carolina (Dr Cardona). Ms Kennedy is currently with the American Society of Clinical Oncology, Arlington, Virginia
| | - Jason Kang
- From the Department of Pathology, University of Colorado-Anschutz Medical Campus, Aurora (Dr Bocsi); the Department of Pathology, NorthShore University Health System, Evanston, Illinois (Dr Kang); the Advocacy Division, College of American Pathologists, Washington, DC (Mss Kennedy, Singh, and Peditto); and the Department of Pathology, Duke University Medical Center, Durham, North Carolina (Dr Cardona). Ms Kennedy is currently with the American Society of Clinical Oncology, Arlington, Virginia
| | - Angela Kennedy
- From the Department of Pathology, University of Colorado-Anschutz Medical Campus, Aurora (Dr Bocsi); the Department of Pathology, NorthShore University Health System, Evanston, Illinois (Dr Kang); the Advocacy Division, College of American Pathologists, Washington, DC (Mss Kennedy, Singh, and Peditto); and the Department of Pathology, Duke University Medical Center, Durham, North Carolina (Dr Cardona). Ms Kennedy is currently with the American Society of Clinical Oncology, Arlington, Virginia
| | - Loveleen Singh
- From the Department of Pathology, University of Colorado-Anschutz Medical Campus, Aurora (Dr Bocsi); the Department of Pathology, NorthShore University Health System, Evanston, Illinois (Dr Kang); the Advocacy Division, College of American Pathologists, Washington, DC (Mss Kennedy, Singh, and Peditto); and the Department of Pathology, Duke University Medical Center, Durham, North Carolina (Dr Cardona). Ms Kennedy is currently with the American Society of Clinical Oncology, Arlington, Virginia
| | - Stephanie Peditto
- From the Department of Pathology, University of Colorado-Anschutz Medical Campus, Aurora (Dr Bocsi); the Department of Pathology, NorthShore University Health System, Evanston, Illinois (Dr Kang); the Advocacy Division, College of American Pathologists, Washington, DC (Mss Kennedy, Singh, and Peditto); and the Department of Pathology, Duke University Medical Center, Durham, North Carolina (Dr Cardona). Ms Kennedy is currently with the American Society of Clinical Oncology, Arlington, Virginia
| | - Diana M Cardona
- From the Department of Pathology, University of Colorado-Anschutz Medical Campus, Aurora (Dr Bocsi); the Department of Pathology, NorthShore University Health System, Evanston, Illinois (Dr Kang); the Advocacy Division, College of American Pathologists, Washington, DC (Mss Kennedy, Singh, and Peditto); and the Department of Pathology, Duke University Medical Center, Durham, North Carolina (Dr Cardona). Ms Kennedy is currently with the American Society of Clinical Oncology, Arlington, Virginia
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Worldwide variation in lynch syndrome screening: case for universal screening in low colorectal cancer prevalence areas. Fam Cancer 2020; 20:145-156. [PMID: 32914371 DOI: 10.1007/s10689-020-00206-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 09/01/2020] [Indexed: 02/07/2023]
Abstract
To perform a systematic assessment of universal Lynch syndrome (LS) screening yield in colorectal cancer (CRC) patients around the world. Universal screening for LS is recommended in all CRC patients. However, the variation in yield of LS screening in the setting of significant global variation in CRC prevalence is unknown. A systematic review of articles in the MEDLINE database was performed to identify studies performing universal screening for LS. All cases with microsatellite instability (MSI-H) or missing one or more proteins on immunohistochemistry (IHC) were considered screening positive. The overall pooled yield of universal LS screening in 97 study arms from 89 identified studies was 11.9% (5649/47545) and the overall pooled percentage of confirmed LS patients was 1.8% (682/37220). LS screening positivity varied significantly based on geographic region (Kruskal Wallis test, p < 0.001) and reported 5-year CRC prevalence in the country (Fisher's exact, p < 0.001). Significant inverse correlation was found between LS screening positivity and 5-year CRC prevalence (Pearson correlation, r = - 0.56, p < 0.001). The overall yield of LS screening was 15.00% (382/2553) and rate of confirmed LS was 7.7% (113/1475) in LS screening done in patients ≤ 50 years (16 studies). There is significant geographic variation in LS screening positivity with higher yield in countries with lower prevalence of CRC. Our results highlight the importance of universal LS screening in younger patients and low CRC prevalence countries.
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Lowery JT, Weber TK, Ahnen DJ, Schroy III PC, Levell CL, Smith RA. An action plan to address the rising burden of colorectal cancer in younger adults. COLORECTAL CANCER 2020. [DOI: 10.2217/crc-2020-0004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Aim: The National Colorectal Cancer Roundtable convened a national Summit to discuss the causes of early-onset colorectal cancer and clinical challenges to mitigating burden of this disease. Materials & methods: Information presented was synthesized through scientific consensus building to determine priorities for new research and practice change. Results: Research priorities include evaluating role of novel risk factors, understanding natural history and identifying ways to implement evidenced-based practices for identifying and managing at-risk persons. Practice change should focus on adoption of guidelines for collecting family history, screening in young adults at risk, provider and population awareness about risk and symptoms, and universal tumor testing. Conclusion: Successful implementation of strategies to address research and practice change will require collaboration from multiple partners.
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Affiliation(s)
- Jan T Lowery
- Center for Personalized Medicine, University of Colorado, Aurora, CO 80045, USA
| | - Thomas K Weber
- Northwell Health, Professor of Surgery, Donald & Barbara Zucker School of Medicine at Hofstra/Northwell, New York, NY 10028, USA
| | - Dennis J Ahnen
- Gastroenterology of the Rockies, University of Colorado School of Medicine & Director of Genetics Program, Aurora, CO 80045, USA
| | - Paul C Schroy III
- Boston University School of Medicine, Section of Gastroenterology, Boston, MA 02118, USA
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21
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Erbs E, Rafaelsen SR, Lindebjerg J, Jensen LH, Hansen TF. The impact of mismatch repair status to the preoperative staging of colon cancer: implications for clinical management. COLORECTAL CANCER 2020. [DOI: 10.2217/crc-2020-0001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Aims: We sought to investigate if mismatch repair (MMR) status influences the preoperative staging of local colon cancer. Methods: Data from 590 patients in the Danish Colorectal Cancer Group national clinical database who were operated on for stage I-III colon cancer in 2010-15 were included. MMR status was determined by immunohistochemistry. Results: 22.9% had deficient(d) MMR tumors. Correlation of the clinical and pathological T-category was significant for both groups. The correlation of pre- and postoperative N-category was inferior (p >0.05) in dMMR cancers compared to a significant (p <0.01) correlation in proficient MMR cancers. 64.8% of dMMR tumors assessed node-positive demonstrated no sign of metastatic involvement at the postoperative assessment. Conclusion: MMR status seems to impact the accuracy of preoperative lymph node staging.
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Affiliation(s)
- Emilie Erbs
- Danish Colorectal Cancer Center South, Vejle Hospital, Institute of Regional Health Research, University of Southern Denmark, Vejle 7100, Denmark
| | - Søren Rafael Rafaelsen
- Danish Colorectal Cancer Center South, Vejle Hospital, Institute of Regional Health Research, University of Southern Denmark, Vejle 7100, Denmark
| | - Jan Lindebjerg
- Danish Colorectal Cancer Center South, Vejle Hospital, Institute of Regional Health Research, University of Southern Denmark, Vejle 7100, Denmark
| | - Lars Henrik Jensen
- Danish Colorectal Cancer Center South, Vejle Hospital, Institute of Regional Health Research, University of Southern Denmark, Vejle 7100, Denmark
| | - Torben Frøstrup Hansen
- Danish Colorectal Cancer Center South, Vejle Hospital, Institute of Regional Health Research, University of Southern Denmark, Vejle 7100, Denmark
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Tognetto A, Pastorino R, Castorina S, Condorelli DF, DeCensi A, De Vito C, Magnano A, Scaldaferri F, Villari P, Genuardi M, Boccia S. The Current Practice of Lynch Syndrome Diagnosis and Management in Italy: A Qualitative Assessment. Public Health Genomics 2019; 22:189-207. [PMID: 31805557 DOI: 10.1159/000504305] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 10/22/2019] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Lynch syndrome (LS) is the most frequent form of hereditary colorectal cancer (CRC; up to 3-5% of the total CRC burden) and predisposes to the development of other cancers. Multidisciplinary diagnostic strategies are relevant both to the index cases and to their at-risk relatives, but their implementation is still limited. Our study aimed to explore LS testing practices in Italy. METHODS In order to ascertain the current practice of LS diagnosis and management, we conducted a qualitative assessment by sending a questionnaire to health care professionals at 4 Italian hospitals selected as "models" representing different hospital settings. Based on the surveys, we reconstructed the management pathways for CRC patients in terms of diagnostic strategies and health professionals involved. RESULTS Seven of the 8 invited professionals filled in the questionnaire. Noncompliance with the latest guidelines was reported, as no tumor "screening" was performed on CRC cases. The lack of a structured multidisciplinary team who manages CRC patients from risk assessment to diagnosis and follow-up was reported. The availability of professionals and laboratory technologies differ widely between hospitals. As for cascade testing of at-risk relatives, a systematic and active approach was absent in all the considered hospitals. CONCLUSIONS Our study shows that no structured and standardized pathways for the diagnosis and management of LS patients are currently in place in Italy. We envisage that by extending our research to further experiences and countries, an increasing awareness of the topic can be translated into a health gain for hereditary CRC patients and their at-risk relatives.
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Affiliation(s)
- Alessia Tognetto
- Sezione di Igiene, Istituto di Sanità Pubblica, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Roberta Pastorino
- Department of Woman and Child Health and Public Health - Public Health Area, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy,
| | - Sergio Castorina
- Department of Medical and Surgical Sciences and Advanced Technologies, G.F. Ingrassia, Catania University, Catania, Italy
| | - Daniele Filippo Condorelli
- Section of Medical Biochemistry, Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | | | - Corrado De Vito
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy
| | - Antonio Magnano
- UOC Gastroenterologia, AOU Policlinico VE - Catania, Catania, Italy
| | - Franco Scaldaferri
- UOC Medicina Interna, Gastroenterologia e Malattie del Fegato, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Paolo Villari
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy
| | - Maurizio Genuardi
- UOC Genetica Medica, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy.,Istituto di Medicina Genomica, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Stefania Boccia
- Sezione di Igiene, Istituto di Sanità Pubblica, Università Cattolica del Sacro Cuore, Rome, Italy.,Department of Woman and Child Health and Public Health - Public Health Area, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
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Incorporating Colorectal Cancer Genetic Risk Assessment into Gastroenterology Practice. ACTA ACUST UNITED AC 2019; 17:702-715. [DOI: 10.1007/s11938-019-00267-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Abstract
Purpose of review: Identification of Lynch syndrome is important from an individual patient and public health standpoint. As paradigms for Lynch syndrome diagnosis have shifted in recent years, this review will discuss rationale and limitations for current strategies as well as provide an overview of future directions in the field. Recent findings: In recent years, the use of clinical criteria and risk scores for identification of Lynch syndrome have been augmented by universal testing of all newly diagnosed colorectal cancers with molecular methods to screen for mismatch repair deficiency with high sensitivity and specificity. Studies of implementation and outcomes of universal testing in clinical practice have demonstrated significant heterogeneity that results in suboptimal uptake and contributes to disparities in diagnosis. Emerging technologies, such as next-generation sequencing, hold significant promise as a screening strategy for Lynch syndrome. Summary: Universal testing for Lynch syndrome is being performed with increasing frequency, although real-world outcomes have demonstrated room for improvement. Future directions in Lynch syndrome diagnosis will involve optimization of universal testing workflow and application of new genetics technologies.
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Dicks E, Pullman D, Kao K, MacMillan A, Simmonds C, Etchegary H. Universal tumor screening for Lynch syndrome: perspectives of Canadian pathologists and genetic counselors. J Community Genet 2019; 10:335-344. [PMID: 30465127 PMCID: PMC6591350 DOI: 10.1007/s12687-018-0398-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 11/13/2018] [Indexed: 12/31/2022] Open
Abstract
Universal screening of all newly diagnosed colorectal cancer tumors can identify individuals at high risk for Lynch syndrome (LS), a hereditary cancer syndrome predisposing carriers to increased risk of colorectal, endometrial, and other cancers. To inform planning of a universal tumor screening program for LS in our jurisdiction, we undertook online surveys of Canadian pathologists and genetic counselors to describe existing tumor screening programs. Online surveys were hosted on SurveyMonkey between October 2016 and March 2017. Fifty-three pathologists and 66 genetic counselors completed surveys (total n = 119). While attitudes towards tumor screening were positive, considerable variability was observed in the existence of tumor screening, test ordering criteria, and practices. Most respondents indicated consent was not obtained for tumor screening nor were educational materials provided to patients; however, opting out of additional mutation testing in the event of a positive tumor screen was endorsed. Results add to the growing literature on providers' perspectives on population-based tumor screening programs and inform ways to offer these. Findings highlight the need to develop methods of patient education that allow meaningful opt-out decisions. The variability we observed also suggests the need for national standards and guidance on tumor screening for LS.
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Affiliation(s)
- Elizabeth Dicks
- Faculty of Medicine, Memorial University, St. John's, NL, Canada
| | - Daryl Pullman
- Faculty of Medicine, Memorial University, St. John's, NL, Canada
| | - Ken Kao
- Faculty of Medicine, Memorial University, St. John's, NL, Canada
- Immunohistochemistry Laboratory, Eastern Regional Health Authority, St. John's, NL, Canada
| | - Andrée MacMillan
- Provincial Medical Genetics Program, Eastern Regional Health Authority, St. John's, NL, Canada
| | | | - Holly Etchegary
- Faculty of Medicine, Memorial University, St. John's, NL, Canada.
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Green RF, Ari M, Kolor K, Dotson WD, Bowen S, Habarta N, Rodriguez JL, Richardson LC, Khoury MJ. Evaluating the role of public health in implementation of genomics-related recommendations: a case study of hereditary cancers using the CDC Science Impact Framework. Genet Med 2019; 21:28-37. [PMID: 29907802 PMCID: PMC6295277 DOI: 10.1038/s41436-018-0028-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Accepted: 03/20/2018] [Indexed: 01/21/2023] Open
Abstract
Public health plays an important role in ensuring access to interventions that can prevent disease, including the implementation of evidence-based genomic recommendations. We used the Centers for Disease Control and Prevention (CDC) Science Impact Framework to trace the impact of public health activities and partnerships on the implementation of the 2009 Evaluation of Genomic Applications in Practice and Prevention (EGAPP) Lynch Syndrome screening recommendation and the 2005 and 2013 United States Preventive Services Task Force (USPSTF) BRCA1 and BRCA2 testing recommendations.The EGAPP and USPSTF recommendations have each been cited by >300 peer-reviewed publications. CDC funds selected states to build capacity to integrate these recommendations into public health programs, through education, policy, surveillance, and partnerships. Most state cancer control plans include genomics-related goals, objectives, or strategies. Since the EGAPP recommendation, major public and private payers now provide coverage for Lynch Syndrome screening for all newly diagnosed colorectal cancers. National guidelines and initiatives, including Healthy People 2020, included similar recommendations and cited the EGAPP and USPSTF recommendations. However, disparities in implementation based on race, ethnicity, and rural residence remain challenges. Public health achievements in promoting the evidence-based use of genomics for the prevention of hereditary cancers can inform future applications of genomics in public health.
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Affiliation(s)
- Ridgely Fisk Green
- Carter Consulting and Office of Public Health Genomics, Division of Public Health Information Dissemination, Center for Surveillance, Epidemiology, and Laboratory Services, Centers for Disease Control and Prevention, Atlanta, Georgia, USA.
| | - Mary Ari
- Office of the Director, Office of the Associate Director for Science, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Katherine Kolor
- Office of Public Health Genomics, Division of Public Health Information Dissemination, Center for Surveillance, Epidemiology, and Laboratory Services, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - W David Dotson
- Office of Public Health Genomics, Division of Public Health Information Dissemination, Center for Surveillance, Epidemiology, and Laboratory Services, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Scott Bowen
- Office of Public Health Genomics, Division of Public Health Information Dissemination, Center for Surveillance, Epidemiology, and Laboratory Services, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Nancy Habarta
- Division of Public Health Information Dissemination, Center for Surveillance, Epidemiology, and Laboratory Services, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Juan L Rodriguez
- Division of Cancer Prevention and Control, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Lisa C Richardson
- Division of Cancer Prevention and Control, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Muin J Khoury
- Office of Public Health Genomics, Division of Public Health Information Dissemination, Center for Surveillance, Epidemiology, and Laboratory Services, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
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27
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Henriksson I, Henriksson K, Ehrencrona H, Gebre-Medhin S. Hereditary colorectal cancer diagnostics in southern Sweden: retrospective evaluation and future considerations with emphasis on Lynch syndrome. J Community Genet 2018; 10:259-266. [PMID: 30251116 PMCID: PMC6435770 DOI: 10.1007/s12687-018-0385-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 08/31/2018] [Indexed: 01/16/2023] Open
Abstract
Overlapping phenotypes between different hereditary colorectal cancer (CRC) syndromes together with a growing demand for cancer genetic testing and improved sequencing technology call for adjusted patient selection and adapted diagnostic routines. Here we present a retrospective evaluation of family history of cancer, laboratory diagnostic procedure, and outcome for 372 patients tested for Lynch syndrome (LS), i.e., the single most common hereditary cause of CRC. Based on number of affected family members and age at cancer diagnosis in families with genetically confirmed LS, we developed local patient selection criteria for a simplified one-step gene panel mutation screening strategy targeting also less common Mendelian CRC syndromes. Pros and cons of this strategy are discussed.
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Affiliation(s)
- Isabelle Henriksson
- Department of Clinical Genetics and Pathology, Office for Medical Services, Division of Laboratory Medicine, Lund, Sweden
| | - Karin Henriksson
- Department of Clinical Genetics and Pathology, Office for Medical Services, Division of Laboratory Medicine, Lund, Sweden
| | - Hans Ehrencrona
- Department of Clinical Genetics and Pathology, Office for Medical Services, Division of Laboratory Medicine, Lund, Sweden.,Division of Clinical Genetics, Department of Laboratory Medicine, Lund University, Lund, Sweden
| | - Samuel Gebre-Medhin
- Department of Clinical Genetics and Pathology, Office for Medical Services, Division of Laboratory Medicine, Lund, Sweden. .,Division of Clinical Genetics, Department of Laboratory Medicine, Lund University, Lund, Sweden. .,Department of Clinical Genetics and Pathology, University Hospital, SE-221 85, Lund, Sweden.
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28
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Noll A, J Parekh P, Zhou M, Weber TK, Ahnen D, Wu XC, Karlitz JJ. Barriers to Lynch Syndrome Testing and Preoperative Result Availability in Early-onset Colorectal Cancer: A National Physician Survey Study. Clin Transl Gastroenterol 2018; 9:185. [PMID: 30237431 PMCID: PMC6148048 DOI: 10.1038/s41424-018-0047-y] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 07/17/2018] [Accepted: 07/19/2018] [Indexed: 01/07/2023] Open
Abstract
Objective Although widely recommended, Lynch syndrome (LS) testing with tumor microsatellite instability (MSI) and/or immunohistochemistry (IHC) is infrequently performed in early-onset colorectal cancer (CRC), and CRC generally. Reasons are poorly understood. Hence, we conducted a national survey focusing on gastroenterologists, as they are frequently first to diagnose CRC, assessing testing barriers and which specialist is felt responsible for ordering MSI/IHC. Additionally, we assessed factors influencing timing of MSI/IHC ordering; testing on colonoscopy biopsy, opposed to post-operative surgical specimens, assists decisions on preoperative germline genetic testing and extent of colonic resection (ECR). Methods A 21-question web-based survey was distributed through an American College of Gastroenterology email listing. Results In total 509 completed the survey. 442 confirmed gastroenterologists were analyzed. Only 33.4% felt gastroenterologists were responsible for MSI/IHC ordering; pathologists were believed most responsible (38.6%). Cost, unfamiliarity interpreting results and unavailable genetic counseling most commonly prevented routine ordering (33.3%, 29.2%, 24.9%, respectively). In multivariable analysis, non-academic and rural settings were associated with cost and genetic counseling barriers. Only 46.1% felt MSI/IHC should always be performed on colonoscopy biopsy. Guideline familiarity predicted whether respondents felt surgical resection should be delayed until results returned given potential effect on ECR decisions. Conclusion Inconsistencies in who is felt should order MSI/IHC may lead to diffusion of responsibility, preventing consistent testing, including preoperatively. Assuring institutional universal testing protocols are in place, with focus on timing of testing, can optimize care. Strategies addressing cost barriers and genomic service availability in rural and non-academic settings can enhance testing. Greater emphasis on guideline familiarity is required.
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Affiliation(s)
- Alan Noll
- Tulane University School of Medicine, New Orleans, LA, USA;, Emory University School of Medicine, Atlanta, GA, USA
| | - Parth J Parekh
- Tulane University School of Medicine, New Orleans, LA, USA;, Eastern Virginia Medical School, Norfolk, VA, USA
| | - Meijiao Zhou
- Louisiana Tumor Registry and Epidemiology, School of Public Health, Louisiana State University Health Sciences Center, New Orleans, LA, USA
| | - Thomas K Weber
- Zucker School of Medicine, Hofstra Northwell, Northwell Health Cancer Institute, Hempstead, NY, USA
| | - Dennis Ahnen
- Gastroenterology of the Rockies, University of Colorado School of Medicine, Aurora, CO, USA
| | - Xiao-Cheng Wu
- Louisiana Tumor Registry and Epidemiology, School of Public Health, Louisiana State University Health Sciences Center, New Orleans, LA, USA
| | - Jordan J Karlitz
- Tulane University School of Medicine, Division of Gastroenterology. Staff Gastroenterologist Southeast Louisiana Veteran Health Care System, New Orleans, LA, USA.
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Bednar EM, Walsh MT, Baker E, Muse KI, Oakley HD, Krukenberg RC, Dresbold CS, Jenkinson SB, Eppolito AL, Teed KB, Klein MH, Morman NA, Bowdish EC, Russ P, Wise EE, Cooper JN, Method MW, Henson JW, Grainger AV, Arun BK, Lu KH. Creation and Implementation of an Environmental Scan to Assess Cancer Genetics Services at Three Oncology Care Settings. J Genet Couns 2018; 27:10.1007/s10897-018-0262-4. [PMID: 29770910 PMCID: PMC6240000 DOI: 10.1007/s10897-018-0262-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 05/06/2018] [Indexed: 02/03/2023]
Abstract
An environmental scan (ES) is an efficient mixed-methods approach to collect and interpret relevant data for strategic planning and project design. To date, the ES has not been used nor evaluated in the clinical cancer genetics setting. We created and implemented an ES to inform the design of a quality improvement (QI) project to increase the rates of adherence to national guidelines for cancer genetic counseling and genetic testing at three unique oncology care settings (OCS). The ES collected qualitative and quantitative data from reviews of internal processes, past QI efforts, the literature, and each OCS. The ES used a data collection form and semi-structured interviews to aid in data collection. The ES was completed within 6 months, and sufficient data were captured to identify opportunities and threats to the QI project's success, as well as potential barriers to, and facilitators of guideline-based cancer genetics services at each OCS. Previously unreported barriers were identified, including inefficient genetic counseling appointment scheduling processes and the inability to track referrals, genetics appointments, and genetic test results within electronic medical record systems. The ES was a valuable process for QI project planning at three OCS and may be used to evaluate genetics services in other settings.
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Affiliation(s)
- Erica M Bednar
- The Department of Clinical Cancer Genetics, The University of Texas MD Anderson Cancer Center, Unit 1362 P.O. Box 301439, Houston, TX, 77230-1439, USA.
- The Cancer Prevention and Control Platform, Moon Shots Program™, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
| | - Michael T Walsh
- The Cancer Prevention and Control Platform, Moon Shots Program™, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Ellen Baker
- The Cancer Prevention and Control Platform, Moon Shots Program™, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Kimberly I Muse
- The Department of Clinical Cancer Genetics, The University of Texas MD Anderson Cancer Center, Unit 1362 P.O. Box 301439, Houston, TX, 77230-1439, USA
| | - Holly D Oakley
- The Department of Clinical Cancer Genetics, The University of Texas MD Anderson Cancer Center, Unit 1362 P.O. Box 301439, Houston, TX, 77230-1439, USA
| | | | - Cara S Dresbold
- Oncology Genetic Counseling, Community Health Network, Indianapolis, IN, USA
| | - Sandra B Jenkinson
- Oncology Genetic Counseling, Community Health Network, Indianapolis, IN, USA
| | | | - Kelly B Teed
- Piedmont Cancer, Piedmont Healthcare, Atlanta, GA, USA
| | - Molly H Klein
- Piedmont Cancer, Piedmont Healthcare, Atlanta, GA, USA
| | | | | | - Pauline Russ
- Genetic Counseling Program, OhioHealth, Columbus, OH, USA
| | - Emaline E Wise
- Genetic Counseling Program, OhioHealth, Columbus, OH, USA
| | - Julia N Cooper
- Genetic Counseling Program, OhioHealth, Columbus, OH, USA
| | - Michael W Method
- Gynecologic Cancer Care, Community Health Network, Indianapolis, IN, USA
| | - John W Henson
- Piedmont Cancer, Piedmont Healthcare, Atlanta, GA, USA
| | | | - Banu K Arun
- Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Karen H Lu
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
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Leicher LW, Lammertink MHA, Offerman SR, Morreau H, de Jong MM, de Groot JWB, van Westreenen HL, Vasen HFA, de Vos Tot Nederveen Cappel WH. Consequences of testing for mismatch repair deficiency of colorectal cancer in clinical practice. Scand J Gastroenterol 2018; 53:632-636. [PMID: 29161904 DOI: 10.1080/00365521.2017.1406534] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
INTRODUCTION Mismatch repair deficiency (dMMR) can be found in Lynch syndrome (LS)-associated colorectal carcinoma and in 15% of sporadic colorectal cancer (CRC). Outcome of MMR-deficiency testing is important for surgical decisions as extended colectomy is recommended in young LS-patients with CRC. Moreover, the finding of a dMMR tumour has consequences for the choices of adjuvant chemotherapy as MMR-deficient CRC is resistant to 5-fluorouracil (5-FU) monotherapy. Aims of our study are to evaluate whether MMR-deficiency testing leads to (1) identification of LS, (2) change in surgical treatment and (3) adjustment of systemic therapy in patients with dMMR CRC. METHODS We performed a multicentre, retrospective study, in a community hospital and a University Medical Centre. We included all CRC-patients between 2012 and 2016 who were tested for microsatellite instability. We collected clinical data such as gender, age, referral to clinical geneticist, surgical procedure and choice of chemotherapy. RESULTS We analysed 225 CRCs. Twenty-four (10.7%) of 225 CRC were MMR-deficient. Of the 24 patients with dMMR CRC, 18 (75%) were referred to the clinical geneticist and in nine (37%) patients a MMR mutation was identified. In one (4%) of the 24 patients, a subtotal colectomy was performed. In seven (35%) out of 20 MMR deficient patients, the chemotherapy regimen was adjusted. CONCLUSIONS The finding of a dMMR CRC had consequences for decisions on chemotherapy in a relative high proportion of patients. We recommend testing in all patients with CRC independent of age at diagnosis, as proper treatment decisions and genetic counselling are very important.
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Affiliation(s)
- L W Leicher
- a Department of Gastroenterology and Hepatology , Isala , Zwolle , The Netherlands
| | - M H A Lammertink
- a Department of Gastroenterology and Hepatology , Isala , Zwolle , The Netherlands
| | - S R Offerman
- b Department of Pathology , Isala , Zwolle , The Netherlands
| | - H Morreau
- c Department of Pathology , Leiden University Medical Centre , Leiden , The Netherlands
| | - M M de Jong
- d Department of Genetics , University Medical Centre Groningen , Groningen , The Netherlands
| | - J W B de Groot
- e Department of Oncology , Isala , Zwolle , The Netherlands
| | | | - H F A Vasen
- g Department of Gastroenterology , Leiden University Medical Centre , Leiden , The Netherlands.,h The Netherlands Foundation for the Detection of Hereditary Tumors , Leiden , The Netherlands
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Shaikh T, Handorf EA, Meyer JE, Hall MJ, Esnaola NF. Mismatch Repair Deficiency Testing in Patients With Colorectal Cancer and Nonadherence to Testing Guidelines in Young Adults. JAMA Oncol 2018; 4:e173580. [PMID: 29121143 DOI: 10.1001/jamaoncol.2017.3580] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Importance Mismatch repair (MMR) deficiency of DNA has been observed in up to 15% of sporadic colorectal cancers (CRCs) and is a characteristic feature of Lynch syndrome, which has a higher incidence in young adults (age, <50 years) with CRC. Mismatch repair deficiency can be due to germline mutations or epigenetic inactivation, affects prognosis and response to systemic therapy, and results in unrepaired repetitive DNA sequences, which increases the risk of multiple malignant tumors. Objective To evaluate the utilization of MMR deficiency testing in adults with CRC and analyze nonadherence to long-standing testing guidelines in younger adults using a contemporary national data set to help identify potential risk factors for nonadherence to newly implemented universal testing guidelines. Design, Setting, and Participants Adult (age, <30 to ≥70 years) and, of these, younger adult (<30 to 49 years) patients with invasive colorectal adenocarcinoma diagnosed between 2010 and 2012 and known MMR deficiency testing status were identified using the National Cancer Database. The study was conducted from March 16, 2016, to March 1, 2017. Exposures Patient sociodemographic, facility, tumor, and treatment characteristics. Main Outcomes and Measures The primary outcome of interest was receipt of MMR deficiency testing. Multivariable logistic regression was used to identify independent predictors of testing in adult and/or young adult patients. Results A total of 152 993 adults with CRC were included in the study (78 579 [51.4%] men; mean [SD] age, 66.9 [13.9] years). Of these patients, only 43 143 (28.2%) underwent MMR deficiency testing; the proportion of patients tested increased between 2010 and 2012 (22.3% vs 33.1%; P<.001). Among 17 218 younger adult patients with CRC, only 7422 (43.1%) underwent MMR deficiency testing; the proportion tested increased between 2010 and 2012 (36.1% vs 48.0%; P < .001). Irrespective of age, higher educational level (OR, 1.38; 95% CI, 1.15-1.66), later diagnosis year (OR, 1.81; 95% CI, 1.65-1.98), early stage disease (OR, 1.24; 95% CI, 1.18-1.30), and number of regional lymph nodes examined (≥12) (OR, 1.44; 95% CI, 1.34-1.55) were independently associated with MMR deficiency testing, whereas older age (OR, 0.31; 95% CI, 0.26-0.37); Medicare (OR, 0.89; 95% CI, 0.84-0.95), Medicaid (OR, 0.83; 95% CI, 0.73-0.93), or uninsured (OR, 0.78; 95% CI, 0.66-0.92) status; nonacademic vs academic/research facility type (OR, 0.44; 95% CI, 0.34-0.56); rectosigmoid or rectal tumor location (OR, 0.76; 95% CI, 0.68-0.86); unknown grade (OR, 0.61; 95% CI, 0.53-0.69); and nonreceipt of definitive surgery (OR, 0.33; 95% CI, 0.30-0.37) were associated with underuse of MMR deficiency testing. Conclusions and Relevance Despite recent endorsement of universal use of MMR deficiency testing in patients with CRC and well-established guidelines aimed at high-risk populations, overall utilization of testing is poor and significant underuse of testing among young adults persists. Interventions tailored to groups at risk for nonadherence to guidelines may be warranted in the current era of universal testing.
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Affiliation(s)
- Talha Shaikh
- Department of Radiation Oncology, Fox Chase Cancer Center, Philadelphia, Pennsylvania
| | - Elizabeth A Handorf
- Department of Biostatistics, Fox Chase Cancer Center, Philadelphia, Pennsylvania
| | - Joshua E Meyer
- Department of Radiation Oncology, Fox Chase Cancer Center, Philadelphia, Pennsylvania
| | - Michael J Hall
- Department of Medical Oncology, Fox Chase Cancer Center, Philadelphia, Pennsylvania
| | - Nestor F Esnaola
- Department of Surgical Oncology, Fox Chase Cancer Center, Philadelphia, Pennsylvania
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Fiorot A, Pozza A, Ruffolo C, Caratozzolo E, Bonariol L, D’Amico FE, Padoan L, Calia di Pinto F, Scarpa M, Castoro C, Bassi N, Massani M. Colorectal cancer in the young: a possible role for immune surveillance? Acta Chir Belg 2018; 118:7-14. [PMID: 28743216 DOI: 10.1080/00015458.2017.1353233] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Younger patients with colorectal cancer (CRC) generally have better survival in spite of worse clinical and pathological features. METHODS Twenty-six patients under 50 years operated for primary CRC were enrolled and matched 1:2:2 according to stage, tumor site and gender with 52 patients from 50 to 70 years and 52 patients over 70 years old. RESULTS Patients under 50 years had a significantly longer overall, cancer specific and disease free survival (p = .001, p = .007 and p = .05, respectively). However, they had more frequently lymphovascular invasion (p = .006) and they more frequently developed metachronous CRC at follow-up (p = .03). Nevertheless, preoperative lymphocytes blood count/white blood count (LBC/WBC) ratio inversely correlated with age at operation (rho = -.21, p = .04) and it predicted CRC recurrence with an accuracy of 70%, p < .001 (threshold value LBC/WBC = 0.21%) and better overall, cancer specific and disease free survival (p < .0001 for all). At multivariate analysis, stage and LBC/WBC ratio resulted independent predictors of disease free survival (p = .0001 and p = .01, respectively). CONCLUSIONS Patients under 50 years had a significantly longer survival with a higher LBC/WBC ratio. These results could suggest a possible role of immunosurveillance in neoplastic control.
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Affiliation(s)
- Alain Fiorot
- Department of Surgery, IV Unit of Surgery, Regional Hospital “Cà Foncello”, Treviso, Italy
| | - Anna Pozza
- Department of Surgery, IV Unit of Surgery, Regional Hospital “Cà Foncello”, Treviso, Italy
| | - Cesare Ruffolo
- Department of Surgery, IV Unit of Surgery, Regional Hospital “Cà Foncello”, Treviso, Italy
| | - Ezio Caratozzolo
- Department of Surgery, IV Unit of Surgery, Regional Hospital “Cà Foncello”, Treviso, Italy
| | - Luca Bonariol
- Department of Surgery, IV Unit of Surgery, Regional Hospital “Cà Foncello”, Treviso, Italy
| | | | - Luigi Padoan
- Department of Surgery, IV Unit of Surgery, Regional Hospital “Cà Foncello”, Treviso, Italy
| | | | - Marco Scarpa
- Surgical Oncology Unit, Veneto Institute of Oncology IOV-IRCCS, Padova, Italy
| | - Carlo Castoro
- Surgical Oncology Unit, Veneto Institute of Oncology IOV-IRCCS, Padova, Italy
| | - Nicolò Bassi
- Department of Surgery, IV Unit of Surgery, Regional Hospital “Cà Foncello”, Treviso, Italy
| | - Marco Massani
- Department of Surgery, IV Unit of Surgery, Regional Hospital “Cà Foncello”, Treviso, Italy
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Sperber NR, Carpenter JS, Cavallari LH, J. Damschroder L, Cooper-DeHoff RM, Denny JC, Ginsburg GS, Guan Y, Horowitz CR, Levy KD, Levy MA, Madden EB, Matheny ME, Pollin TI, Pratt VM, Rosenman M, Voils CI, W. Weitzel K, Wilke RA, Ryanne Wu R, Orlando LA. Challenges and strategies for implementing genomic services in diverse settings: experiences from the Implementing GeNomics In pracTicE (IGNITE) network. BMC Med Genomics 2017; 10:35. [PMID: 28532511 PMCID: PMC5441047 DOI: 10.1186/s12920-017-0273-2] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Accepted: 05/10/2017] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND To realize potential public health benefits from genetic and genomic innovations, understanding how best to implement the innovations into clinical care is important. The objective of this study was to synthesize data on challenges identified by six diverse projects that are part of a National Human Genome Research Institute (NHGRI)-funded network focused on implementing genomics into practice and strategies to overcome these challenges. METHODS We used a multiple-case study approach with each project considered as a case and qualitative methods to elicit and describe themes related to implementation challenges and strategies. We describe challenges and strategies in an implementation framework and typology to enable consistent definitions and cross-case comparisons. Strategies were linked to challenges based on expert review and shared themes. RESULTS Three challenges were identified by all six projects, and strategies to address these challenges varied across the projects. One common challenge was to increase the relative priority of integrating genomics within the health system electronic health record (EHR). Four projects used data warehousing techniques to accomplish the integration. The second common challenge was to strengthen clinicians' knowledge and beliefs about genomic medicine. To overcome this challenge, all projects developed educational materials and conducted meetings and outreach focused on genomic education for clinicians. The third challenge was engaging patients in the genomic medicine projects. Strategies to overcome this challenge included use of mass media to spread the word, actively involving patients in implementation (e.g., a patient advisory board), and preparing patients to be active participants in their healthcare decisions. CONCLUSIONS This is the first collaborative evaluation focusing on the description of genomic medicine innovations implemented in multiple real-world clinical settings. Findings suggest that strategies to facilitate integration of genomic data within existing EHRs and educate stakeholders about the value of genomic services are considered important for effective implementation. Future work could build on these findings to evaluate which strategies are optimal under what conditions. This information will be useful for guiding translation of discoveries to clinical care, which, in turn, can provide data to inform continual improvement of genomic innovations and their applications.
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Affiliation(s)
- Nina R. Sperber
- Division of General Internal Medicine, Duke University School of Medicine, Durham, NC USA
- Duke Center for Applied Genomics & Precision Medicine, Duke University, Durham, NC USA
- VA Health Services Research & Development, Durham VA Health Care System, 411 West Chapel Hill Street, Suite 600, Durham, NC 27701 USA
| | | | - Larisa H. Cavallari
- Department of Pharmacotherapy and Translational Research and Center for Pharmacogenomics, University of Florida, Gainesville, FL USA
| | - Laura J. Damschroder
- Implementation Pathways, LLC and VA Ann Arbor Center for Clinical Management Research, Ann Arbor, USA
| | - Rhonda M. Cooper-DeHoff
- University of Florida, College of Pharmacy and Medicine and Center for Pharmacogenomics, Gainesville, USA
| | | | - Geoffrey S. Ginsburg
- Duke Center for Applied Genomics & Precision Medicine, Duke University, Durham, NC USA
| | - Yue Guan
- University of Maryland School of Medicine, Baltimore, USA
| | | | | | - Mia A. Levy
- Vanderbilt University Medical Center, Nashville, USA
| | - Ebony B. Madden
- National Human Genome Research Institute (NHGRI), Rockville, USA
| | - Michael E. Matheny
- Vanderbilt University Medical Center, Tennessee Valley HealthCare System VA, Nashville, USA
| | - Toni I. Pollin
- University of Maryland School of Medicine, Baltimore, USA
| | | | - Marc Rosenman
- Indiana University School of Nursing, Indianapolis, IN USA
| | - Corrine I. Voils
- William S. Middleton Memorial Veterans Hospital, Madison, WI USA
- Department of Surgery, University of Wisconsin-Madison, Madison, WI USA
| | - Kristen W. Weitzel
- University of Florida, College of Pharmacy and Medicine and Center for Pharmacogenomics, Gainesville, USA
| | - Russell A. Wilke
- Sanford School of Medicine, University of South Dakota, Vermillion, USA
| | - R. Ryanne Wu
- Duke Center for Applied Genomics & Precision Medicine, Duke University, Durham, NC USA
- Duke University, Duke-National University of Singapore Medical School, 8 College Road, Singapore, 169857 Singapore
| | - Lori A. Orlando
- Duke Center for Applied Genomics & Precision Medicine, Duke University, Durham, NC USA
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Patterns of Sociodemographic and Clinicopathologic Characteristics of Stages II and III Colorectal Cancer Patients by Age: Examining Potential Mechanisms of Young-Onset Disease. J Cancer Epidemiol 2017; 2017:4024580. [PMID: 28239395 PMCID: PMC5292385 DOI: 10.1155/2017/4024580] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 12/16/2016] [Accepted: 12/28/2016] [Indexed: 01/17/2023] Open
Abstract
Background and Aims. As a first step toward understanding the increasing incidence of colorectal cancer (CRC) in younger (age < 50) populations, we examined demographic, clinicopathologic, and socioeconomic characteristics and treatment receipt in a population-based sample of patients newly diagnosed with stages II and III CRC. Methods. Patients were sampled from the National Cancer Institute's Patterns of Care studies in 1990/91, 1995, 2000, 2005, and 2010 (n = 6, 862). Tumor characteristics and treatment data were obtained through medical record review and physician verification. We compared sociodemographic and clinicopathologic characteristics and treatment patterns of younger (age < 50) and older (age 50–69, age ≥ 70) CRC patients. Results. Younger patients were more likely to be black (13%) and Hispanic (15%) than patients aged 50–69 years (11% and 10%, resp.) and ≥70 years (7% each). A larger proportion of young white (41%) and Hispanic (33%) patients had rectal tumors, whereas tumors in the right colon were the most common in young black patients (39%). The majority of younger patients received chemotherapy and radiation therapy, although receipt of microsatellite instability testing was suboptimal (27%). Conclusion. Characteristics of patients diagnosed with young-onset CRC differ considerably by race/ethnicity, with a higher proportion of black and Hispanic patients diagnosed at the age of < 50 years.
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35
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Affiliation(s)
- Xavier Llor
- Department of Medicine and Cancer Center, Yale University, New Haven, Connecticut.
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Kim TJ, Kim ER, Hong SN, Kim YH, Huh JW, Park YA, Cho YB, Yun SH, Kim HC, Lee WY, Kim K, Kim K, Chang DK. Survival Outcome and Risk of Metachronous Colorectal Cancer After Surgery in Lynch Syndrome. Ann Surg Oncol 2016; 24:1085-1092. [PMID: 27766559 DOI: 10.1245/s10434-016-5633-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Indexed: 01/13/2023]
Abstract
BACKGROUND The survival benefit of extensive colectomy is controversial in Lynch syndrome, and risk factors for metachronous colorectal cancer (CRC) after segmental colectomy are unclear. OBJECTIVE The aim of this study was to investigate the survival outcome and risk of metachronous CRC after surgery in Lynch syndrome patients diagnosed with their first CRC. METHODS Overall, 106 patients with Lynch syndrome who underwent surgery for CRC were included in the study. The demographics, genotype, clinicopathological characteristics of the index CRC, and follow-up data were reviewed from a single-institution Lynch syndrome database. RESULTS Of 30 patients who underwent extensive surgery, no metachronous CRC was developed during a mean follow-up of 68.1 months. Of 76 patients who underwent segmental colectomy, 13 (17.1 %) developed metachronous CRC during a mean follow-up of 77.2 months. The cumulative risk of metachronous CRC was 8.4 % at 5 years and 20.4 % at 10 years after segmental colectomy. No difference in overall and CRC-specific survival was observed between segmental colectomy and extensive colectomy (p = 0.277 and p = 0.659, respectively). A 25 cm or longer resection of bowel decreased the risk of metachronous CRC after segmental colectomy compared with less extensive resection (hazard ratio 0.10, 95 % confidence interval 0.01-0.86). Annual surveillance colonoscopy did not decrease the risk of metachronous CRC compared with less frequent surveillance colonoscopy. Although not statistically significant, none of the MSH6 gene mutation carriers were diagnosed with metachronous CRC. CONCLUSIONS Although no survival benefit was identified, surgeons and patients might consider extensive colectomy to prevent metachronous CRC in Lynch syndrome patients regardless of their clinicopathological characteristics.
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Affiliation(s)
- Tae Jun Kim
- Division of Gastroenterology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Eun Ran Kim
- Division of Gastroenterology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Sung Noh Hong
- Division of Gastroenterology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Young-Ho Kim
- Division of Gastroenterology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Jung Wook Huh
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Yoon Ah Park
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Yong Beom Cho
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Seong Hyeon Yun
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Hee Cheol Kim
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Woo Yong Lee
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Kiyoun Kim
- Biostatistics and Clinical Epidemiology Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Kyunga Kim
- Biostatistics and Clinical Epidemiology Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Dong Kyung Chang
- Division of Gastroenterology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
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Kidambi TD, Lee R, Terdiman JP, Day L. Successful implementation of Lynch syndrome screening in a safety net institution. J Community Genet 2016; 7:255-60. [PMID: 27372833 DOI: 10.1007/s12687-016-0270-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Accepted: 06/20/2016] [Indexed: 10/21/2022] Open
Abstract
Lynch syndrome (LS) is the most common cause of hereditary colorectal cancer (CRC), and national guidelines recommend screening patients with CRC for LS. However, there is a paucity of data related to Lynch syndrome in the underserved population, in which unique issues of access, cultural beliefs regarding cancer, language barriers, immigration status, and financial restraints exist. We performed a descriptive, retrospective review of a selective LS screening protocol at an urban safety net hospital between 2009 and 2014 with the aim of describing the detected prevalence of LS as well as reporting the high quality and suboptimal screening rates. A total of 154 cases of CRC were identified over the 5-year period, of which 57 met selective LS screening criteria. Eleven patients had a positive screen, and three patients were diagnosed with LS, leading to an overall detected LS prevalence of 1.9 %. The rate of high quality screen was greater than 90 %, consistent with prior studies. Thus, we show that screening for LS in a safety net hospital can be successful in achieving high quality screening and provide an example for other public hospitals considering implementation of hereditary cancer screening.
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Affiliation(s)
- Trilokesh D Kidambi
- Division of Gastroenterology, University of California, San Francisco, San Francisco, CA, USA
| | - Robin Lee
- San Francisco and San Francisco General Hospital Cancer Genetics and Prevention Program, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, CA, USA
| | - Jonathan P Terdiman
- Division of Gastroenterology, University of California, San Francisco, San Francisco, CA, USA
| | - Lukejohn Day
- Division of Gastroenterology, University of California, San Francisco, San Francisco, CA, USA.
- Division of Gastroenterology, San Francisco General Hospital, 1001 Potrero Ave, SFGH 5, San Francisco, CA, 94110, USA.
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38
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Underhill M, Jones T, Habin K. Disparities in Cancer Genetic Risk Assessment and Testing. Oncol Nurs Forum 2016; 43:519-23. [DOI: 10.1188/16.onf.519-523] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Karlitz JJ, Sherrill MR, DiGiacomo DV, Hsieh MC, Schmidt B, Wu XC, Chen VW. Factors Associated With the Performance of Extended Colonic Resection vs. Segmental Resection in Early-Onset Colorectal Cancer: A Population-Based Study. Clin Transl Gastroenterol 2016; 7:e163. [PMID: 27077958 PMCID: PMC4855160 DOI: 10.1038/ctg.2016.17] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Accepted: 02/22/2016] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVES: Early-onset colorectal cancer (CRC) incidence rates are rising. This group is susceptible to heritable conditions (i.e., Lynch syndrome (LS)) and inflammatory bowel disease (IBD) with high metachronous CRC rates after segmental resection. Hence, extended colonic resection (ECR) is often performed and considered generally in young patients. As there are no population-based studies analyzing resection extent in early-onset CRC, we used CDC Comparative Effectiveness Research (CER) data to assess state-wide operative practices. METHODS: Using CER and Louisiana Tumor Registry data, all CRC patients aged ≤50 years, diagnosed in Louisiana in 2011, who underwent surgery in 2011–2012 were retrospectively analyzed. Prevalence of, and the factors associated with operation type (ECR including subtotal/total/proctocolectomy vs. segmental resection) were evaluated. RESULTS: Of 2,427 CRC patients, 274 were aged ≤50 years. In all, 234 underwent surgery at 53 unique facilities and 6.8% underwent ECR. Statistically significant ECR-associated factors included age ≤45 years, polyposis, synchronous/metachronous LS-associated cancers, and IBD. Abnormal microsatellite instability (MSI) was not ECR-associated. ECR was not performed in sporadic CRC. CONCLUSIONS: ECR is performed in the setting of clinically obvious associated high-risk features (polyposis, IBD, synchronous/metachronous cancers) but not in isolated/sporadic CRC. However, attention must be paid to patients with seemingly lower risk characteristics (isolated CRC, no polyposis), as LS can still be present. In addition, the presumed sporadic group requires further study as metachronous CRC risk in early-onset sporadic CRC has not been well-defined, and some may harbor undefined/undiagnosed hereditary conditions. Abnormal MSI (LS risk) is not associated with ECR; abnormal MSI results often return postoperatively after segmental resection has already occurred, which is a contributing factor.
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Affiliation(s)
- Jordan J Karlitz
- Department of Medicine, Division of Gastroenterology, Tulane University School of Medicine, New Orleans, Louisiana, USA
| | - Meredith R Sherrill
- Department of Medicine, Tulane University School of Medicine, New Orleans, Louisiana, USA
| | - Daniel V DiGiacomo
- Department of Medicine, Tulane University School of Medicine, New Orleans, Louisiana, USA
| | - Mei-Chin Hsieh
- Epidemiology Program, Louisiana Tumor Registry, LSU Health Sciences Center School of Public Health, New Orleans, Louisiana, USA
| | - Beth Schmidt
- Epidemiology Program, Louisiana Tumor Registry, LSU Health Sciences Center School of Public Health, New Orleans, Louisiana, USA
| | - Xiao-Cheng Wu
- Epidemiology Program, Louisiana Tumor Registry, LSU Health Sciences Center School of Public Health, New Orleans, Louisiana, USA
| | - Vivien W Chen
- Epidemiology Program, Louisiana Tumor Registry, LSU Health Sciences Center School of Public Health, New Orleans, Louisiana, USA
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Thiels CA, Naik ND, Bergquist JR, Spindler BA, Habermann EB, Kelley SR, Wolff BG, Mathis KL. Survival following synchronous colon cancer resection. J Surg Oncol 2016; 114:80-5. [DOI: 10.1002/jso.24258] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Accepted: 03/26/2016] [Indexed: 01/10/2023]
Affiliation(s)
- Cornelius A. Thiels
- Department of Surgery; Mayo Clinic; Rochester Minnesota
- The Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery; Mayo Clinic; Rochester Minnesota
| | | | | | | | - Elizabeth B. Habermann
- The Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery; Mayo Clinic; Rochester Minnesota
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Vindigni SM, Kaz AM. Universal Screening of Colorectal Cancers for Lynch Syndrome: Challenges and Opportunities. Dig Dis Sci 2016; 61:969-76. [PMID: 26602911 DOI: 10.1007/s10620-015-3964-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Accepted: 11/06/2015] [Indexed: 12/20/2022]
Abstract
Lynch syndrome (LS) is the most common heritable colorectal cancer (CRC) syndrome, accounting for approximately 3 % of CRC cases in the USA each year. LS results from a genetic mutation in one of the four mismatch repair genes, and clinically LS is associated with CRC and other gastrointestinal and extra-gastrointestinal malignancies. In this review, we describe the various clinical criteria utilized for the identification of LS patients and the inherent flaws with these criteria. We discuss the concept of universal testing for LS in all cases of newly diagnosed CRC, along with the potential benefits and challenges of universal testing. Several studies have shown that universal tumor testing is cost-effective and identifies cases of LS that are missed using traditional clinical criteria, which may result in reduced cancer mortality for probands and their families. Yet the full benefits of universal tumor testing may be limited by the availability and patient acceptance of genetic testing, and by logistical obstacles affecting the implementation of universal testing programs. Lastly, we comment on developing technologies such as massively parallel next-generation sequencing, which permits simultaneous sequencing of multiple genes involved in LS and other inherited colon cancer syndromes.
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Affiliation(s)
- Stephen M Vindigni
- Division of Gastroenterology, University of Washington School of Medicine, 1959 NE Pacific Street, Box 356424, Seattle, WA, 98105, USA
| | - Andrew M Kaz
- Division of Gastroenterology, University of Washington School of Medicine, 1959 NE Pacific Street, Box 356424, Seattle, WA, 98105, USA. .,VA Puget Sound Health Care System, 1660 S. Columbian Way, S-111-Gastro, Seattle, WA, 98108, USA.
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42
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Diagnosis of Lynch syndrome before colorectal resection: does it matter? Tech Coloproctol 2016; 20:203-5. [DOI: 10.1007/s10151-016-1433-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Accepted: 01/22/2016] [Indexed: 10/22/2022]
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43
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Basterra M, Gomez M, Mercado MDR, Irisarri R, Amorena E, Arrospide A, Montes M, Aisa G, Cambra KI, Urman J. [Prevalence of altered mismatch repair protein nuclear expression detected by immunohistochemistry on adenomas with high-grade dysplasia and features associated with this risk in a population-based study]. GASTROENTEROLOGIA Y HEPATOLOGIA 2016; 39:500-7. [PMID: 26790715 DOI: 10.1016/j.gastrohep.2015.10.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Revised: 10/06/2015] [Accepted: 10/12/2015] [Indexed: 11/30/2022]
Abstract
INTRODUCTION Alteration of mismatch repair system protein expression detected by immunohistochemistry (IHQ) in tumoural tissue is a useful technique for Lynch Syndrome (LS) screening. A recent review proposes LS screening through immunohistochemical study not only in all diagnosed cases of colorectal cancer (CRC) but also in advanced adenomas, especially in young patients. OBJECTIVE To assess the prevalence of altered IHQ carried out in all adenomas with high-grade dysplasia (HGD) diagnosed in our community in 2011, as well as the variables associated with this alteration. METHODS We included all the cases of adenomatous polyps with HGD diagnosed in the three public pathology laboratories of Navarre during 2011 and performed a statistical study to assess the association between different patient and lesion characteristics and altered IHQ results. RESULTS A total of 213 colonic adenomas with HGD were diagnosed, and 26 (12.2%) cases were excluded from the final analysis (2 known LS, 22 without IHQ study and 2 with inconclusive IHQ studies). The final number of adenomas included was 187. Pathologic results were found in 10 cases (5.35%)-6 cases in MLH1 and PMS2, 2 cases in PMS2, 1 case in MSH6 and 1 case in MSH2 and MSH6. The factors showing a statistically significant association with the presence of abnormal proteins were the synchronous presence of CRC, the presence of only one advanced adenoma, proximal location of HGD and age <50 years. CONCLUSIONS The percentage of pathologic nuclear expression found in IHQ is high. Consequently, screening of all diagnosed HGD could be indicated, especially in young patients, with a single AA and proximal HGD.
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Affiliation(s)
- Marta Basterra
- Servicio de Aparato Digestivo, Complejo Hospitalario de Navarra, Pamplona, España.
| | - Marta Gomez
- Servicio de Aparato Digestivo, Complejo Hospitalario de Navarra, Pamplona, España
| | - María Del Rosario Mercado
- Servicio de Anatomía Patológica, Complejo Hospitalario de Navarra, Pamplona, España; Instituto de Investigación Sanitaria de Navarra (IdiSNA), Pamplona, España
| | - Rebeca Irisarri
- Servicio de Aparato Digestivo, Hospital García Orcoyen, Estella, España
| | - Edurne Amorena
- Servicio de Aparato Digestivo, Hospital Reina Sofía , Tudela, España
| | - Arantzazu Arrospide
- Unidad de investigación AP-OSIsGipuzkoa, OSI Alto Deba, Arrasate, España; Red de Investigación en Servicios de Salud en Enfermedades Crónicas (REDISSEC), España
| | - Marta Montes
- Servicio de Anatomía Patológica, Complejo Hospitalario de Navarra, Pamplona, España; Instituto de Investigación Sanitaria de Navarra (IdiSNA), Pamplona, España
| | - Gregorio Aisa
- Servicio de Anatomía Patológica, Hospital Reina Sofía, Tudela, España
| | - Koldo Iñaki Cambra
- Instituto de Investigación Sanitaria de Navarra (IdiSNA), Pamplona, España
| | - Jesús Urman
- Servicio de Aparato Digestivo, Complejo Hospitalario de Navarra, Pamplona, España; Instituto de Investigación Sanitaria de Navarra (IdiSNA), Pamplona, España
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Cohen SA, Laurino M, Bowen DJ, Upton MP, Pritchard C, Hisama F, Jarvik G, Fichera A, Sjoding B, Bennett RL, Naylor L, Jacobson A, Burke W, Grady WM. Initiation of universal tumor screening for Lynch syndrome in colorectal cancer patients as a model for the implementation of genetic information into clinical oncology practice. Cancer 2015; 122:393-401. [PMID: 26480326 DOI: 10.1002/cncr.29758] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Revised: 09/11/2015] [Accepted: 09/30/2015] [Indexed: 11/06/2022]
Abstract
BACKGROUND Lynch syndrome confers a hereditary predisposition to colorectal and other cancers. Universal tumor screening (UTS) for Lynch syndrome is recommended by several professional societies, but the implementation can be complex. This article describes the evaluation, process development, and initiation of Lynch syndrome UTS at a tertiary referral cancer center. METHODS A multidisciplinary team developed the new process design. Issues in 5 themes were noted: timing, funding, second-opinion patients, result processing, and the role of genetics providers. A committee approach was used to examine each issue for process-improvement development. RESULTS The issues related to testing were addressed individually for the successful implementation of UTS at the institutional level. In the conventional-care period, 9 of 30 cases (30%) received Lynch syndrome screening, and 4 cases were referred to medical genetics. During the 6 months following the implementation of UTS, 32 of 44 patients (73%) received Lynch syndrome screening. The 13 unscreened patients all had identified reasons for nonscreening (eg, financial limitations). Ten patients were referred to medical genetics, which identified no new cases of Lynch syndrome, but a low-risk adenomatous polyposis coli (APC) variant was detected in 1 individual. CONCLUSIONS The implementation of effective Lynch syndrome UTS can feasibly alter practice at the institutional level. This experience with the assessment and management of issues relevant to the successful implementation of a new clinical care paradigm based on emerging technology has implications for the uptake of advances across molecular oncology into clinical practice, and this is highly relevant in the current era of rapidly evolving genomic technology.
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Affiliation(s)
- Stacey A Cohen
- Division of Oncology, University of Washington, Seattle, Washington.,Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Mercy Laurino
- Division of Medical Genetics, University of Washington, Seattle, Washington.,Genetic Counseling, Seattle Cancer Care Alliance, Seattle, Washington.,Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Deborah J Bowen
- Department of Bioethics and Humanities, University of Washington, Seattle, Washington
| | - Melissa P Upton
- Department of Pathology, University of Washington, Seattle, Washington
| | - Colin Pritchard
- Department of Laboratory Medicine, University of Washington, Seattle, Washington
| | - Fuki Hisama
- Division of Medical Genetics, University of Washington, Seattle, Washington
| | - Gail Jarvik
- Division of Medical Genetics, University of Washington, Seattle, Washington.,Department of Genome Sciences, University of Washington, Seattle, Washington
| | | | - Britta Sjoding
- Genetic Counseling, Seattle Cancer Care Alliance, Seattle, Washington
| | - Robin L Bennett
- Division of Medical Genetics, University of Washington, Seattle, Washington.,Genetic Counseling, Seattle Cancer Care Alliance, Seattle, Washington
| | - Lorraine Naylor
- Division of Medical Genetics, University of Washington, Seattle, Washington.,Genetic Counseling, Seattle Cancer Care Alliance, Seattle, Washington
| | - Angela Jacobson
- Department of Laboratory Medicine, University of Washington, Seattle, Washington
| | - Wylie Burke
- Department of Bioethics and Humanities, University of Washington, Seattle, Washington
| | - William M Grady
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington.,Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, Washington.,Division of Gastroenterology, University of Washington, Seattle, Washington
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