Françoise Riou

Variations between endoscopists in rates of detection of colorectal neoplasia and their impact on a regional screening program based on colonoscopy after fecal occult blood testing

BACKGROUND There are few data about the performance variability among endoscopists participating to nationwide or regionwide colorectal cancer screening programs. OBJECTIVE To assess the variability of neoplasia detection rates among endoscopists participating in a regional colorectal cancer screening program based on colonoscopy after biennial fecal occult blood testing (FOBT). DESIGN Two rounds of colonoscopy were performed: round 1 took place in 2003 and 2004, and round 2 took place in 2005 and 2006. Secondary analysis of colonoscopy findings from the first 2 rounds was performed by using data drawn from all endoscopists who performed more than 30 colonoscopies in each round. Detection rates were adjusted for patient age and sex, and logistic regression analyses were conducted including these 2 variables and round number (1 or 2). SETTING District of Ille-et-Vilaine in Brittany (population >900,000) between 2003 and 2007. MAIN OUTCOME MEASUREMENTS The per-endoscopist adjusted rates of colonoscopies with at least 1, 2, or 3 adenomas, 1 adenoma 10 mm or larger, or a cancer. RESULTS Among the 18 endoscopists who performed 3462 colonoscopies, the adjusted detection rates were in the following ranges: at least 1 adenoma, 25.4% to 46.8%; 2 adenomas, 5.1% to 21.7%; 3 adenomas, 2.7% to 12.4%; 1 adenoma 10 mm or larger, 14.2% to 28.0%; and cancer, 6.3% to 16.4%. Multivariate analyses showed that the endoscopist was not an independent predictor of cancer detection, but was an independent predictor of detecting adenomas, regardless of category; the R(2) of the models ranged from 6% to 13% only. LIMITATIONS Other factors known to influence colorectal neoplasia occurrence and withdrawal time could not be taken into account. CONCLUSIONS In a screening program with a high compliance rate with colonoscopy after FOBT, interendoscopist variability had no effect on cancer detection, but did influence identification of adenomas. The clinical impact of such findings merits further evaluation.

Yield of High-Grade Dysplasia Based on Polyp Size Detected at Colonoscopy: A Series of 2295 Examinations Following a Positive Fecal Occult Blood Test in a Population-Based Study

PURPOSE: The aim was to determine the rate of high-grade dysplasia among patients with all adenomas, and its prevalence in patients with adenomas of different sizes in a well-defined population-based study. POPULATION AND METHODS: We performed a secondary analysis of the 2295 colonoscopies performed following a positive fecal occult blood test result during the first round of colorectal cancer screening in one French district. The rates of high-grade dysplasia were calculated for 3 size categories of adenoma (diminutive, ≤5 mm; small, 6–9 mm; large, ≥10 mm). Predictive factors for high-grade dysplasia were assessed by univariate and multivariate analyses. RESULTS: A total of 1284 adenomas were detected in 784 subjects. High-grade dysplasia was present in 32.1% of the 784 subjects and in 2.7%, 16.0%, and 51.1% of those whose adenomas were diminutive, small, and large, respectively. Among subjects with no more than 2 small adenomas, the proportion of those with high-grade dysplasia was 12.4%. Both adenoma size and a villous component within adenomas were found to be independent predictive factors for high-grade dysplasia by multivariate analysis. CONCLUSIONS: Because of the high rate of high-grade dysplasia among small adenomas, our results reinforce the need to remove all small adenomas detected at colonoscopy. Furthermore, the results suggest that opting for CT colonography surveillance instead of colonoscopic removal among subjects with one or 2 small polyps revealed by CT colonography would have led to missed high-grade dysplasia in 12.4% of them.

Frequency of and risk factors for the surgical resection of nonmalignant colorectal polyps: a population-based study.

BACKGROUND AND STUDY AIMS The management of patients with colon polyps who are referred to surgery remains uncharacterized in a population-based setting. The aims of this study were to determine the frequency, risk factors, and outcomes of patients referred for surgical resection of colorectal polyps. PATIENTS AND METHODS All patients who underwent a colonoscopy for positive fecal occult blood test in the setting of a population-based colorectal cancer screening program in France between 2003 and 2012 were analyzed. The primary outcome was the proportion of patients undergoing colorectal surgery for polyps without invasive carcinoma. Logistic regression analysis was applied to identify risk factors for surgical resection. RESULTS Among 4251 patients with at least one colorectal polyp, 175 (4.1 %) underwent colorectal surgery. Risk factors for surgery included size, proximal polyp location, advanced histology (villous or high grade dysplasia), the endoscopy center, and colonoscopy performed during the first half of the study period. Subgroup analysis of 3475 colonoscopies performed by 22 endoscopists who performed at least 50 colonoscopies during the study period, identified the endoscopist as an additional risk factor. The adjusted proportions of referrals to surgery ranged from 0 to 46.6 % per endoscopist for polyps ≥ 20  mm (median 20.2 %). Overall, surgical complications occurred in 24.0 %, and one patient died following surgery (0.5 %). None of the 175 patients who underwent surgery were referred to a tertiary endoscopic center prior to surgery. CONCLUSIONS In this population-based study, 4.1 % of patients with nonmalignant polyps were referred for surgical resection. The endoscopist was one important factor that was associated with surgical referral. To further decrease the proportion of inappropriate surgery in patients, endoscopists should refer their patients with large or difficult polyps to expert endoscopists prior to surgery.

Factors associated with treatment lag in infantile spasms

Aim  The aim of this study was to evaluate the conditions in which infantile spasms are diagnosed and their possible impact on the course of the disease.

Trajectories of care home residents during the last month of life: the case of France

ABSTRACT This paper examines some demographic and medical factors associated with the likelihood of residing in a care home during the last month of life for persons aged 70 and over in France and, if so, of remaining in the care home throughout or being transferred to hospital. The data are from the Fin de vie en France (End of Life in France) survey undertaken in 2010. During the last month of life, very old people are more likely to be living in a care home but are not less likely to be transferred to hospital. Medical conditions and residential trajectories are closely related. People with dementia or mental disorders are more likely to live in a care home and, if so, to stay there until they die. Compared to care homes, a more technical and medication-based approach is taken in hospitals and care home residents who are transferred to hospital more often receive medication while those remaining in care homes more often receive support from a psychologist. In hospitals as in care homes, few older persons had recourse to advance directives and hospice programmes were not widespread. Promoting these two factors may help to increase the quality of end of life and facilitate an ethical approach to end-of-life care.

The positive predictive value of guaiac faecal occult blood test in relation to the number of positive squares in two consecutive rounds of colorectal cancer screening.

The aim of this study was to define the positive predictive values of a positive guaiac faecal occult blood test according to the number of positive squares, in two consecutive rounds of colorectal cancer mass screening in a French region. A total of 4172 colonoscopies were analyzed. Sex, age, number of positive squares, and colonoscopic and histopathologic findings were studied. In the results obtained, 76.6% of positive tests were positive with one or two squares. The number of positive squares was not related to sex, age and rank of participation. The positive predictive value for cancers and adenomas increased significantly with age, sex (male) and number of positive squares from 6.6% (one to two squares) to 27.6% (five to six squares) and from 15.2% to 22.2%, respectively. Cancer was diagnosed 211 times (54.1%) and advanced neoplasia was diagnosed 696 times (65.3%) following positive tests with one to two squares. The TNM stage of cancer increased significantly with the number of positive squares: 85.8% of stages 0–1–2 for one to two positive squares and 66.3% for five to six positive squares (P<0.001). Multivariate analysis showed an increased risk of cancer and advanced neoplasia for male patients and aged persons. The number of positive squares significantly increased the risk of cancer (odds ratio=4.6 for five to six positive squares) and the risk of advanced neoplasia (odds ratio=2.9). Age, sex and number of positive squares were independent predictive factors of positive guaiac faecal occult blood test. The proportion of TNM stages 3–4 was significantly higher in those with five to six positive squares. Performing a complete colonoscopy in every individual having a positive test, especially aged men with a high number of positive squares, should be a priority in any screening programme.

Physician-assisted deaths in France: Results from a nationwide survey

La Presse Medicale - In Press.Proof corrected by the author Available online since jeudi 4 juin 2015

Neoplasia detection rates after positive fecal occult blood test results are not affected by endoscopy center: a population-based study

BACKGROUND We previously showed a significant variability in adenoma detection among colonoscopists who were participating in a mass screening program. The reasons for such variability remain largely unknown. OBJECTIVE To study intercenter variations in neoplasia detection. DESIGN AND SETTING Secondary analyses of colonoscopy findings from the 2 first rounds of a French screening program: logistic regressions and repeated-measures analyses of variance. MATERIAL A total of 3487 colonoscopies performed by all 19 endoscopists who performed 30 examinations or more per round at 8 centers (6 private, 2 public). MAIN OUTCOME MEASUREMENTS Probabilities of detecting 1, 2, or 3 or more adenomas, 1 adenoma 10 mm or larger, or colorectal cancer, as well as the corresponding adjusted (for patient age and sex) per-center detection rates. RESULTS Endoscopy centers were not significant predictors of the probability of detecting any category of neoplasia with the exception of the 2 adenomas or more category (P < .005). The ranges of the adjusted detection rates for each of these categories were 33.1% to 43.1%, 11.1% to 21.6%, 3.6% to 8.1%, 16.3% to 23.6%, and 8.3% to 12.6%, respectively. When the colonoscopies that were performed by the 11 endoscopists who performed 30 examinations or more per center in 2 or more centers were separately analyzed, no intercenter statistically significant variability was observed with the exception of 1 endoscopist and the 1 adenoma category. In a subgroup of 1100 colonoscopies performed by 6 endoscopists who were working at the same 3 centers, intercenter variability was not statistically significant. LIMITATIONS Type II error because of sample sizes. CONCLUSIONS In our setting, intercenter variability did not explain interendoscopist variability for neoplasia detection rate.

When physicians report having used medical drugs to deliberately end a patient's life: Findings of the "End-of-life in France" Survey

CONTEXT The debate on the decriminalization of active assistance in dying is still a topical issue in many countries where it is regarded as homicide. Despite the prohibition, some physicians say they have used drugs to intentionally end a patients life. OBJECTIVES To provide some empirical grounding for the ongoing debate. METHODS Using data from the End-of-Life in France survey (a representative sample of 15,000 deaths that occurred in December 2009, questionnaires completed anonymously by the physicians who had certified the deaths), we selected all the cases where the physician had used one or more drugs to intentionally end a patients life and compared the decisions and decision-making process with the conditions imposed by the French law for decisions to withhold or withdraw life-supporting treatments and by the Belgian law on euthanasia. RESULTS Of the 36 cases analyzed, four situations seemed to be deliberate acts after explicit requests from the patients, and only two seemed to fulfill the eligibility and due care conditions of the Belgian euthanasia law. Decisions made without any discussion with patients were quite common, and we observed inadequate labeling, frequent signs of ambivalence (artificial feeding and hydration not withdrawn, types of drug used), and little interprofessional consultation. Where the patient had requested euthanasia, the emotional burden on the physician was heavy. CONCLUSION These findings underscore the pressing need for a clarification of the concepts involved among health professionals, patients, and society at large, and better training and support for physicians.