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The adoption of a surgical checklist is strongly recommended worldwide as an effective practice to improve patient safety; however, several studies have reported mixed results and a number of issues are still unresolved. The main objective of this study was to explore the impact of the first 5-year period of a surgical checklist-based intervention in a large regional health care system in Italy (4 500 000 inhabitants). We conducted a retrospective longitudinal study on 1 166 424 patients who underwent surgery in 48 public hospitals between 2006 and 2014. The adherence to the checklist was measured between 2011 and 2013 through a computerized database. The effects of the intervention were explored through multivariable logistic regression and difference-in-differences (DID) approaches, based on current administrative data sources. In-hospital and 30-days mortality, 30-days readmissions and length-of-stay (LOS) ⩾8 days were the observed outcomes. Adherence to the checklist showed marked variations across hospitals (0%-93.3%). A pre/post analysis detected statistically significant differences between surgical interventions performed in hospitals with higher adherence to the checklist (⩾75% of the surgeries) and those performed in other hospitals, as for the 30-days readmissions rate (odds ratio [OR]: 0.96; 95% confidence interval [CI]: 0.94-0.98) and LOS ⩾ 8 days rate (OR: 0.88; 95% CI: 0.87-0.89). These findings were confirmed after risk adjustment and DID analysis. No association was observed with mortality outcomes. On the whole, our study attained mixed results. Although a protective effect of the surgical checklist use could not be proved over the first 5 years of this regional implementation experience, our research offers some methodological insights for practical use in the evaluation process of large-scale implementation projects., Competing Interests: Declaration of conflicting interests:The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.

Aims and Background: We evaluated some standardized criteria for classifying incident cases of liver cancer into either primary liver cancer (PLC) or unspecified liver cancer (ULC) on the basis of the diagnostic examinations performed and their results., Methods: A pilot hospital-based study (98 cases) was carried out in Verona, northern Italy, with the main aim of assessing the feasibility of the method. The same procedures were subsequently applied in a population-based study (349 cases) in Brescia, northern Italy., Results: Diagnosis was made on histologic data in 38.7% and 41.8% of the hospital based and population-based studies, respectively, with a wide variation among different hospitals. The percentage of cases classified as PLC was 78.6% in the hospital-based study and 78.8% in the population-based study. No differences in the proportion of cases attributed to PLC were found according to patients' age and sex or hospital of admission. The repeatibility of the procedure was assessed by a cross-panel review of 198 cases, and concordance was found in 91.9% of them., Conclusions: An operational method for case definition of PLC based on the results of the diagnostic examinations currently performed and some suggestions for cancer registration are proposed.

Aims and Background: The role of distribution by stage at diagnosis in breast cancer has been considered in many studies, with particular regard to evaluation of prognosis, impact of screening programs and quality of care. Nevertheless, international comparisons of descriptive data can be hampered by lack of homogeneity in staging methods. The TNM is presently the most common staging system used all over the world, although some criticism have been raised recently against its pragmatic value. The present study reports a population-based survey of pathologic TNM distribution in incident cases of female breast cancer in the Verona province, a geographical area of northern Italy covered by cancer registration., Methods: All histologically proven incident cases of breast cancer were identified in the study period 1988-1990 and classified as for tumor size and nodal involvement according to the pathological TNM criteria. The type of surgical treatment was also registered for all cases diagnosed in 1990., Results: one thousand two hundreds and fifty-four invasive and in situ breast cancers were observed and pT1 cases accounted for 44.4%. Nodal involvement was present in 41.5% of invasive cancers. A surgical treatment was performed in 1213 patients (96.7%). Axillary dissection was reported in 1080 cases, 820 of them (76.6%) having 10 or more lymph nodes examined. Radical mastectomy accounted for 74% of the 458 breast cancers diagnosed in 1990 and 31.6% of the eligible cases were conservatively treated., Conclusions: Cancer registries should be encouraged to report data on stage distribution in breast cancer (and in other malignancies). This practice could improve international comparisons and give an essential contribution to studies on survival, screening programs and quality of care.