Efficacy and safety of direct oral anticoagulants with diabetes and nonvalvular atrial fibrillation: a systematic review and meta-analysis

Background

Diabetes Mellitus (DM) is an independent risk factor for stroke and atrial fibrillation (AF). Therefore, the risk/benefit profile of the direct oral anticoagulants (DOAC) is of clinical interest.

Purpose

To compare efficacy and safety outcomes of DOAC for nonvalvular AF in patients with DM versus without DM.

Methods

We systematically searched PubMed, Embase and Cochrane databases, in January 2020, for interventional studies comparing DOAC efficacy and safety in patients with AF and diabetes versus without diabetes.

Results

Four randomized clinical trials were included, providing a total of 63987 patients, 18860 with DM and 45127 without DM. In terms of efficacy, our meta-analysis revealed a similar rate of stroke/systemic embolism (pooled OR 1.02 [0.79, 1.31], P=0.87, I2=83%), stroke (pooled OR 1.98 [0.68, 1.40], P=0.90, I2=90%) and all-cause mortality (pooled OR 1.18 [0.97, 1.43], P=0.10, I2=87%), albeit with a significant heterogeneity. However, in direct factor Xa inhibitors sub analysis, diabetic patients had a lower trend of systemic embolism/stroke (pooled OR 0.90 [0.79, 1.02], P=0.09, I2=18%), significantly lower stroke rate (pooled OR 0.82 [0.73, 0.93], P<0.01, I2=0%), but a higher all-cause mortality (pooled OR 1.08 [1.00, 1.16], P<0.01, I2=0%). In terms of safety, the diabetic patients receiving DOAC had higher rates of major bleeding events (pooled OR 1.28 [1.14, 1.45], P<0.01, I2=50%), although with significant heterogeneity. Direct factor Xa inhibitors sub analysis also revealed a higher rate of major bleeding events (pooled OR 1.22 [1.08, 1.38], P<0.01, I2=24%), but a similar intracranial bleeding events (pooled OR 1.03 [0.86, 1.24], P=0.72, I2=0%).

Conclusion

Our pooled analysis suggests that diabetic patients on DOAC have an higher bleeding risk on DOAC, although with a superior embolic protection.

Funding Acknowledgement

Type of funding sources: None. Systemic Embolism/Stroke in DM vs. NonDM

Impact of the COVID-19 pandemic on emergent pacemaker implantation during lockdown and its aftermath

Background

COVID-19 was first considered a pandemic on the 11th of March of 2020 by the World Health Organization. Its impact comprised not only the direct consequences of the disease but a decrease in the follow-up and interventions of patients with cardiovascular (CV) disease. In Portugal and the World, the consequences of this complex paradigm shift on emergent pacemaker implantation rates during and after this pandemic is largely unknown.

Purpose

We sought to analyse the impact of COVID-19 pandemic on emergent pacemaker implantation rate and patient profile in a tertiary hospital during the first Portuguese lockdown and subsequent post-lockdown period.

Methods

We retrospectively reviewed the clinical profile of patients who had pacemakers implanted in our hospital in an urgent/emergent setting from March 18, 2020 to May 17, 2020 (lockdown) and May 19 to July 17, 2020 (post-lockdown). This data was then directly compared to the homologous periods from the year before (H1 and H2, respectively).

Results

A total of 180 patients submitted to emergent pacemaker implantation were included.

The cohort was comprised of 29 patients who had a pacemaker implanted during lockdown, 60 post-lockdown, 38 in H1 (+31% vs lockdown) and 53 in H2. Average age and gender proportion were similar for all groups.

When comparing lockdown and post-lockdown periods, the number of cases significantly increased in the second period (+106.9%) and there was a tendency for a higher number of temporary pacemaker use (3.4% vs 16.7%; p=0.076). Patients admitted during lockdown were 7.57 times more likely to present with hypotension/shock (odds ratio (OR) 7.57; p=0.013).

Regarding lockdown and its homologous 2019 period, there was a decrease in the number of patients admitted (−23.7%). Again, there was a higher tendency for hypotension on presentation during lockdown (p=0.054).

In comparison to its homologous 2019 period, post-lockdown saw a slight increase in the number of patients (+13.2%) and more patients presented with bradycardia (16.7% vs 3.8%; p=0.026).

Also of note, no patients were admitted to the emergency department during lockdown for anomalies detected on ambulatory tests (Holter, electrocardiogram or implanted loop recorder).

Conclusion

During lockdown, clinical presentation was generally more severe, with a greater number of patients presenting with hypotension/shock. In addition, there appears to be a lockdown effect on emergent bradyarrhtmias admissions in the post-lockdown period with a profound impact: higher admission rates and more severe presentations including a higher need of temporary pacemaker. Patients with symptoms suggestive of bradyarrhythmias should be advised to present promptly regardless of the pandemic.

Funding Acknowledgement

Type of funding sources: None. Pacemakers during lockdown/post-lockdownPacemakers implanted by diagnosis

Direct oral anticoagulants compared with vitamin K antagonists for left ventricular thrombi systematic review and meta-analysis

Background

Left ventricular thrombus (LVT) is a serious complication primarily occurring in patients with LV dysfunction following large myocardial infarction. The role of direct oral anticoagulants in this clinical setting remains controversial.

Purpose

To compare DOACs versus vitamin K antagonists (VKA) in LVT treatment.

Methods

We systematically searched PubMed, Embase and Cochrane databases, in February 2020, for interventional or observational studies comparing DOAC with VKA on LVT treatment.

Results

Fourteen publications were included, nine published studies and five conference abstracts, providing 1899 patients, 490 patients on DOACs and 1409 subjects on VKA. In terms of efficacy, DOAC had a lower LVT resolution for all studies included which reported LVT resolution (pooled OR, 0.73; 95% CI, 0.55–0.98; P=0.04; I2=52%), but sensitivity analysis revealed no difference between anticoagulant strategy (pooled OR, 0.78; 95% CI, 0.57–1.05; P=0.10; I2=59%). In terms of systemic embolism or stroke, DOAC had a similar efficacy (pooled OR, 1.06; 95% CI, 0.69–1.63; P=0.78; I2=30%) compared to VKA. In clinically relevant bleeding events analysis, the anticoagulation strategy did not differ in the odds of bleeding (pooled OR, 0.65; 95% CI, 0.37–1.15 P=0.14; I2=0%), with similar findings in net adverse clinical events analysis (pooled OR, 0.66; 95% CI, 0.35–1.25; I2=54%; P=0.20).

Conclusion

Our pooled data suggests DOACs as a safe approach to LVT, despite inconsistent efficacy on LVT resolution.

Funding Acknowledgement

Type of funding sources: None.

The prevalence of cardiac sarcoidosis is underestimated: [18F]FDG-PET is the answer

Funding Acknowledgements

Type of funding sources: None.

Background

Overt cardiac involvement is reported in 5% of patients with sarcoidosis, although autopsy and imaging studies suggest higher prevalence, worldwide variation. The role of 18F-fluorodeoxyglucose positron emission tomography ([18F]FDG-PET) in non-invasive diagnosis and follow-up has increased in the last decade.

Purpose

Our goal is to describe the prevalence, clinical manifestations and outcomes of cardiac sarcoidosis (CS), diagnosed through [18F]FDG-PET, in a southern European population.

Methods

We included all patients with histological diagnosis of extracardiac sarcoidosis screened with [18F]FDG-PET between 2009 and 2020. We collected data on clinical manifestations, cardiac magnetic resonance (CMR) results, and mortality outcomes and compared those with and without cardiac involvement. We applied the criteria for the diagnosis of CS from Heart Rhythm Society.

Results

Of the 400 patients screened with [18F]FDG-PET, 128 had a histological diagnosis of extracardiac sarcoidosis (54.7% females, mean age 51.0 ± 14.2 years). None underwent endomyocardial biopsy. Ten patients had a pattern of [18F]FDG uptake consistent with CS defined as diffuse (n = 5), focal (n = 3), and focal on diffuse (n = 2). Of the 128 patients, 14 also underwent CMR, which identified 2 subjects with positive findings in both modalities and 3 additional patients: focal (n = 1), multifocal mid-wall (n = 2), focal mid-wall (n = 2), and multifocal subepicardial (n = 1) delayed gadolinium enhancement. Overall, 13 patients (10.2%) fulfilled the criteria for probable CS (53.8% female, mean age 56.2 ± 12.6 years), all with multiorgan involvement, mostly lung and lymph nodes (each 92%), followed by skin and central nervous system (each 15%). Median left ventricle ejection fraction was 62% [55-65] and there were cardiac manifestations of CS in 6 patients (46%): sick sinus syndrome (n = 2), complete heart block (n = 1), frequent premature ventricular complexes (n = 1), ventricular tachycardia plus heart failure (n = 1), and bifascicular block plus heart failure (n = 1). Eleven patients (85%) with probable CS were medicated with immunosuppressant drugs: corticosteroids (n = 9), methotrexate (n = 4), and azathioprine (n = 2). Four patients with previous [18F]FDG screening were revaluated after treatment, each showing no cardiac uptake.  After a mean follow-up of 4.0 ± 1.0 years, mortality was three-fold higher in patients with cardiac involvement, despite the absence of statistical significance (15% vs. 5%, P = 0.151).

Conclusions

In a southern European population with histological extracardiac sarcoidosis, the prevalence of cardiac involvement was 10.2%, most asymptomatic. [18F]FDG-PET improves the diagnostic yield and plays an important role in monitoring response to therapy. The higher mortality trend in those with CS needs to be ascertained in longer follow-up.

Prediction of remnant liver volume using 3D simulation software in patients undergoing R1vasc parenchyma-sparing hepatectomy for multiple bilobar colorectal liver metastases: reliability, clinical impact, and learning curve

BACKGROUND

Assessment of the future liver remnant (FLR) is routinely performed before major hepatectomy. In R1-vascular one-stage hepatectomy (R1vasc-OSH), given the multiplanar dissection paths, the FLR is not easily predictable. Preoperative 3D-virtual casts may help. We evaluated the predictability of the FLR using the 3D-virtual cast in the R1vasc-OSH for multiple bilobar colorectal liver metastases (CLM).

METHODS

Thirty consecutive patients with multiple bilobar CLMs scheduled for R1vasc-OSH were included. Predicted and real-FLRs were compared. Propensity score-matched analysis was used to determine the impact of 3D-virtual cast on postoperative complications.

RESULTS

Median number of CLM and resection areas were 12 (4-33) and 3 (1-8). Median predicted-FLR was 899 ml (558-1157) and 60% (42-85), while for the real-FLR 915 ml (566-1777) and 63% (43-87). Median discrepancy between predicted and real-FLR was -0.6% (p = 0.504), indicating a slight tendency to underestimate the FLR. The difference was more evident in more than 12 CLMs (p = 0.013). A discrepancy was not evident according to the number of resection areas (p = 0.316). No mortality occurred. Patients in virtual-group had lower major complications compared to nonvirtual-group (0% vs 18%, p-value 0.014).

CONCLUSION

FLR estimation based on 3D-analysis is feasible, provides a safe surgery and represents a promising method in planning R1vasc-OSH for patients with multiple bilobar CLMs.

Contrast Administration Impacts CT-Based Radiomics of Colorectal Liver Metastases and Non-Tumoral Liver Parenchyma Revealing the "Radiological" Tumour Microenvironment

The impact of the contrast medium on the radiomic textural features (TF) extracted from the CT scan is unclear. We investigated the modification of TFs of colorectal liver metastases (CLM), peritumoral tissue, and liver parenchyma. One hundred and sixty-two patients with 409 CLMs undergoing resection (2017–2020) into a single institution were considered. We analyzed the following volumes of interest (VOIs): The CLM (Tumor-VOI); a 5-mm parenchyma rim around the CLM (Margin-VOI); and a 2-mL sample of parenchyma distant from CLM (Liver-VOI). Forty-five TFs were extracted from each VOI (LIFEx^®®). Contrast enhancement affected most TFs of the Tumor-VOI (71%) and Margin-VOI (62%), and part of those of the Liver-VOI (44%, p = 0.010). After contrast administration, entropy increased and energy decreased in the Tumor-VOI (0.93 ± 0.10 vs. 0.85 ± 0.14 in pre-contrast; 0.14 ± 0.03 vs. 0.18 ± 0.04, p < 0.001) and Margin-VOI (0.89 ± 0.11 vs. 0.85 ± 0.12; 0.16 ± 0.04 vs. 0.18 ± 0.04, p < 0.001), while remaining stable in the Liver-VOI. Comparing the VOIs, pre-contrast Tumor and Margin-VOI had similar entropy and energy (0.85/0.18 for both), while Liver-VOI had lower values (0.76/0.21, p < 0.001). In the portal phase, a gradient was observed (entropy: Tumor > Margin > Liver; energy: Tumor < Margin < Liver, p < 0.001). Contrast enhancement affected TFs of CLM, while it did not modify entropy and energy of parenchyma. TFs of the peritumoral tissue had modifications similar to the Tumor-VOI despite its radiological aspect being equal to non-tumoral parenchyma.

Virtual Biopsy for Diagnosis of Chemotherapy-Associated Liver Injuries and Steatohepatitis: A Combined Radiomic and Clinical Model in Patients with Colorectal Liver Metastases

Non-invasive diagnosis of chemotherapy-associated liver injuries (CALI) is still an unmet need. The present study aims to elucidate the contribution of radiomics to the diagnosis of sinusoidal dilatation (SinDil), nodular regenerative hyperplasia (NRH), and non-alcoholic steatohepatitis (NASH). Patients undergoing hepatectomy for colorectal metastases after chemotherapy (January 2018-February 2020) were retrospectively analyzed. Radiomic features were extracted from a standardized volume of non-tumoral liver parenchyma outlined in the portal phase of preoperative post-chemotherapy computed tomography. Seventy-eight patients were analyzed: 25 had grade 2-3 SinDil, 27 NRH, and 14 NASH. Three radiomic fingerprints independently predicted SinDil: GLRLM_f3 (OR = 12.25), NGLDM_f1 (OR = 7.77), and GLZLM_f2 (OR = 0.53). Combining clinical, laboratory, and radiomic data, the predictive model had accuracy = 82%, sensitivity = 64%, and specificity = 91% (AUC = 0.87 vs. AUC = 0.77 of the model without radiomics). Three radiomic parameters predicted NRH: conventional_HUQ2 (OR = 0.76), GLZLM_f2 (OR = 0.05), and GLZLM_f3 (OR = 7.97). The combined clinical/laboratory/radiomic model had accuracy = 85%, sensitivity = 81%, and specificity = 86% (AUC = 0.91 vs. AUC = 0.85 without radiomics). NASH was predicted by conventional_HUQ2 (OR = 0.79) with accuracy = 91%, sensitivity = 86%, and specificity = 92% (AUC = 0.93 vs. AUC = 0.83 without radiomics). In the validation set, accuracy was 72%, 71%, and 91% for SinDil, NRH, and NASH. Radiomic analysis of liver parenchyma may provide a signature that, in combination with clinical and laboratory data, improves the diagnosis of CALI.

Adhesive small bowel obstruction: Single band or matted adhesions? A predictive model based on computed tomography scan

BACKGROUND

Preoperative identification of the cause of adhesive small bowel obstruction (ASBO) is crucial for decision making. Some computed tomography (CT) findings can be indicative of single adhesive bands or matted adhesions. Our aim was to build a predictive model based on CT data to discriminate ASBO due to single adhesive band or matted adhesions.

METHODS

A retrospective single center study was conducted, covering all consecutive patients with a preoperative CT scan, undergoing urgent surgery for ASBO between January 1, 2005, and December 31, 2017. Preoperative CT scans were blindly reviewed, and all the CT findings indicative of single adhesive band or matted adhesions described in literature were recorded. According to intraoperative findings, ASBOs were retrospectively classified into single band and matted ASBO. All observed CT findings were compared between the two groups. A predictive model based on logistic regression was developed, and its ability was quantified by discrimination and calibration. Internal cross-validation was conducted by bootstrap resampling.

RESULTS

A total of 116 patients were analyzed (males, 53.5%; median age, 68 years; single band ASBO in 65.5% of cases). The odds of single band ASBO were increased four times in presence of complete obstruction (odds ratios, 4.19; 95% confidence interval, 1.49-12.56) and seven times in presence of fat notch sign (odds ratios, 7.37; 95% confidence interval, 1.83-40.03). The predictive model combining all CT findings had an accuracy of 86% in single band ASBO prediction. Accuracy decreased to 79% in the internal validation. Sensitivity, specificity, and positive and negative predictive values were calculated at different cut-points of the predicted risk: using a 0.70 cut-point, the specificity is 80%, the sensitivity is 68%, and the positive and negative predictive values are 87% and 57%, respectively.

CONCLUSION

The proposed predictive model based on combination of specific CT findings may elucidate whether ASBO is caused by single bands or matted adhesions and, consequently, influence the clinical pathway.

LEVEL OF EVIDENCE

Prognostic study, level IV.

Adherence to the three Italian screening in a sample of women (and men) in the Southern Italy

INTRODUCTION

Although scientific evidence shows the numerous benefits of screening programs, in Italy. There is a great disparity between the regional coverage of the North and South despite the screening programs have been activated for several years in all regions even with territorial differences.

OBJECTIVE

The aim of our study was to evaluate the knowledge and adherence to different screenings in the population, the influence exercised by the local health authority the role of the general practitioner in advising and referring patients to screening tests and the main causes of refuse.

MATERIAL AND METHODS

The study was carried out, from December 2019 to May 2020, through the administration of anonymous self-filled "ad hoc" questionnaires to women and men over 26 years old.

RESULTS

in our sample 36% have never performed a breast check and 39% of the interviewees never had a mammogram; for cervical cancer 25% did not ever perform screening and 65% did not have an indication by GP. The worst result was found for colorectal cancer (only 27% of the sample performed the screening). The role of GP was fundamental for and similar to other studies, was fundamental in fact,similar to other studies the most frequent reported reasons for the non-execution of screening were the lack of physicians' advice, follwed by lack of time, the most frequent reported reasons for the non-execution of screening were the lack of physicians' advice, a lack of time, fear of cancer and embarrassment at visiting a gynaecologist.

DISCUSSION AND CONCLUSIONS

the study carried out found that despite the knowledge of the oncological disease and the possibilities of prevention is fairly rooted in the population, adherence to the screening is quite inadequate, especially as regards colorectal cancer.

Redo-laparoscopy in the management of complications after laparoscopic colorectal surgery: a systematic review and meta-analysis of surgical outcomes

BACKGROUND

The laparoscopic approach for colorectal surgery has gradually become widely accepted for the treatment of both benign and malignant diseases thanks to its several advantages over the open approach. However, it is associated with the same potential postoperative complications. Some recent studies have analyzed the potential role of laparoscopy in early diagnosis and management of complications following laparoscopic colorectal surgery. The aim of this systematic review was to investigate the outcomes of redo-laparoscopy (RL) for the management of early postoperative complications following laparoscopic colorectal surgery, focusing on length of stay, morbidity and mortality.

METHODS

A systematic review of the literature was performed according to the preferred reporting items for systematic reviews and meta-analyses (PRISMA) guidelines through MEDLINE (PubMed), Embase and Google Scholar from January 1990 to December 2019. The main outcomes examined were conversion rate, length of hospital stay, postoperative morbidity and mortality rates. A meta-analysis of all eligible studies was then conducted and forest plots were generated.

RESULTS

A total of 19 studies involving 1394 patients who required reoperation after laparoscopic colorectal resection were included. In 539 (38.2%) of these patients, a laparoscopic approach was adopted. The most common indication for returning to the operating theater was anastomotic leakage (64.4% of all redo-surgeries, 67.7% of RL) and the most common type of intervention performed in RL was diverting stoma with or without anastomotic repair/redo (47.1%). Nine studies were included in the pooled analysis. The mean length of stay was significantly shorter in the RL group than in the redo-open one (WMD = - 0.90; 95% CI - 1.04 to - 0.76; Z =  - 12,6; p < 0.001). A significantly lower risk of mortality was observed in the RL cohort (OR =  - 0.91; 95% CI - 1.58 to - 0.23; Z = - 2.62; p = 0.009).

CONCLUSIONS

Laparoscopy is a valid and effective approach for the treatment of complications following laparoscopic primary colorectal surgery thanks to it is well-established advantages over the open approach, which remain noticeable even in redo-surgeries.

Infectious endocarditis: improving diagnostic performance in native and prosthetic valve infectious with 18F-FDG PET/CT

Background

The diagnosis of infective endocarditis (IE) remains a clinical challenge. Diagnostic accuracy of the modified Duke criteria is suboptimal for native valve endocarditis (NVE) and even worse in the presence of prosthetic material-related infection (PVE). We aim to evaluate the diagnostic performance of 18F-FDG PET in patients with suspected IE referred to perform PET/CT.

Methods

Consecutive patients with suspected IE, referred to perform PET/CT between May 2016 and June 2019 were included. Diagnostic performance of modified Duke criteria (mDC) and PET/ CT for IE for NVE and PVE was determined.

Results

In total, 82 patients (mean age of 61±19 years, 62% of male gender) were enrolled. There were 67 18F-FDG PET/CT concordant results with final diagnosis, corresponding to a 96% of agreement, k=0.91 (p=0.04). A SUVmax cutoff value of ≥3.1 identified positive cases with 88.9% sensitivity and 70.0% specificity. In patients with NVE, the addition of PET/CT to the mDC resulted in a reduction of the number of possible IE cases (from 58% to 4.3%). In patients with PVE/intracardiac devices, PET/CT allowed reclassification of 67.4% of possible cases to 4.2%. An alternative diagnosis was provided in 55.6% of the negative IE cases.

Conclusions

18F-FDG PET/CT proved to be a useful diagnostic tool in patients with both suspected NVE and PVE with good sensitivity and specificity, resulting in a significant decrease of the number of possible endocarditis. Furthermore, it allowed the identification of the cause of clinical scenario in more than 50% of patients in which the diagnosis was excluded.

18F-FDG PET SUV max ROC for IE diagnosis

Funding Acknowledgement

Type of funding source: None

Meta-analysis and meta-regression of early aortic valve replacement versus watchful waiting in asymptomatic severe aortic stenosis: a 2020 boost of evidence

Background

Current guidelines recommend aortic-valve replacement (AVR) as the only effective therapy for severe symptomatic aortic stenosis (AS) patients. Nevertheless, management and timing of intervention in asymptomatic AS remains a controversial topic, with sparse evidence to support the recommendations (level C).

Purpose

To assess an early-AVR strategy in asymptomatic severe AS, comparing it with a watchful waiting (WW) strategy

Methods

We systematically searched PubMed, Embase and Cochrane databases, in February 2020, for both interventional or observational studies comparing early-AVR with WW in the treatment of asymptomatic severe AS. Random-effects meta-analysis for early-AVR and WW were performed. Meta-regression was used to assess the influence of study characteristics on the outcome.

Results

Eight studies were included (seven registry-based or unrandomized studies and one randomized clinical trial) providing a total of 3985 patients, and 1232 pooled all-cause deaths (172 in early-AVR and 1060 in watchful waiting). Meta-analysis showed a significantly lower all-cause mortality for the early-AVR compared with WW group (pooled OR 0.24 [0.17, 0.32], P&lt;0.01) although with a moderate amount of heterogeneity between studies in the magnitude of effect (I2=57%, P=0.02). The early-AVR patients also displayed a lower cardiovascular mortality (pooled OR 0.27 [0.15, 0.48], P&lt;0.01) plus a lower heart failure hospitalization rate (pooled OR 0.27 [0.06, 0.65], P&lt;0.007). No difference in clinical thromboembolic event rate (stroke or myocardial infarction) was noted.

The meta-regression for all cause mortality based on possible confounders such as time of follow-up, age, gender, diabetes mellitus, coronary artery disease, left ventricular ejection fraction, and mean peak aortic jet velocity showed that effect sizes reported by the individual studies seem to be independent from the covariates considered (P&gt;0.05).

Conclusions

Our 2020 pooled data reinforces the previous evidence suggesting the benefit of early-AVR in asymptomatic patients with severe AS.

Early AVR vs WW, All-cause death

Funding Acknowledgement

Type of funding source: None

Ultrafast electron and proton bunches correlation in laser-solid matter experiments

The interaction of an ultra-intense laser with a solid state target allows the production of multi-MeV proton and ion beams. This process is explained by the target normal sheath acceleration (TNSA) model, predicting the creation of an electric field on the target rear side, due to an unbalanced positive charge. This process is related to the emission of relativistic ultrafast electrons, occurring at an earlier time. In this work, we highlight the correlations between the ultrafast electron component and the protons by their simultaneous detection by means of an electro-optical sampling and a time-of-flight diagnostics, respectively, supported by numerical simulations showing an excellent agreement.

Towards a national health equity monitoring strategy

The 2017 Italian Review on health inequalities identified two main needs with regards to Italian health equity monitoring. (1) The need to collect a social covariate at individual level in each health information system at local, regional and national level. Such a social covariate is fundamental for monitoring if any avoidable inequality in access, use, quality of care and health outcome is occurring at local, regional, national level. (2) The need to re-engineer and frame the different health equity monitoring surveys already established into an explicit health inequalities monitoring strategy (HIMS). Both challenges are accounted for by Italy in the Joint Action Health Equity Europe workplan.

As for the social covariate, a pilot project is conducted. Data from 2011 census (education and area deprivation) and the national identification code used to link individual data on health and services utilization in four representative regions is linked. This will allow monitoring the social variation in selected performance indicators by region, across regions and through time.

As for HIMS, previous research projects have designed and successfully piloted different models of low-cost data linkage for already established longitudinal studies. Now these pilot results will evolve into a national HIMS. As a first step, a special project of consensus building will be implemented among institutional partners responsible for the following national longitudinal studies based on record linkage: a) Work Histories Italian Panel followed up prospectively for health outcomes; b) Italian Longitudinal Study: 2000, 2015, 2013 Health Interview Surveys followed up prospectively for health outcomes; c) differential mortality 2011-2017 in the 2011 censused Italian population; d) the network of the metropolitan and regional census based longitudinal studies followed up prospectively for mortality disease registries and health care utilization. Experiences gained will be shared and discussed.

Life expectancy inequalities and their evolution in Italy. How these impact on the equity of the pension system?

The article aims to present the most recent evidence on the life-expectancy differentials across socio-economic groups in Italy and discuss their implications in terms of equity and fairness of the pension systems. In fact, Italian pension rules are set according to average life expectancy, ignoring the shorter life expectancy at retirement observed in more disadvantaged socioeconomic groups, as well as in many occupations and economic sectors. This produces unintended consequences in terms of redistribution, which reinforce and exacerbate inequalities present in the labour market.

This article will present updated evidence on the evolution of life expectancy inequalities across job titles, sectors and occupational class in Italy to assess whether the social gap, already highlighted by previous scholars, has been widening or narrowing. Only a few studies are available in the literature on this subject, almost exclusively from the US, which suggest that the gap in terms of life expectancy at ages approaching retirement is increasing, mainly driven by a faster improvement in longevity across most advantaged groups. It is crucial to examine the trend in a country like Italy where retirement age has been strongly tightened and linked automatically to average life expectancy in the population. These results may be important in order to inform the public debate about future reforms on retirement rules and in particular for the definition of the so called “arduous and hazardous jobs” (in Italian: lavori gravosi), that could be exempted from the postponement of pension age.

In order to estimate life expectancy differentials among different occupations, three of the largest Italian longitudinal studies will be used: the Turin Longitudinal Study (SLT), the Italian Longitudinal Study (SLI) and WHIP-Health Study, all studies where it is possible to conduct mortality follow-up through administrative record linkage with archives of mortality of large cohorts until recent years.

Get to know to prevent: the Local Health Authority of Cuneo takes care of visual disability

Visual impairment has an important economic weight on our society; in addition to this considerable cost, loss of vision imposes physical, financial and quality of life limitations. Preventing visual impairment is not only a social duty but also an economically convenient activity for the national health system.

On the basis of this concept, a visual impairment disability campaign was carried out in the ASL CN1 (Southern Piedmont Region) taking into account the guidelines recommended by the WHO (1968 screening guidelines but still applicable) in the most disadvantaged territories of the cross-border and rural area, where people have more difficulties to reach territorial services or hospital.

Patients who tested positive for the screening were taken over by the local network for a second-level visit and subsequent follow-up based on the pathology found. In this frame, visual screening represents a promising health policy as it can identify visual disability at an early stage. Through the health information systems (hospital discharge, access to the emergency department and exemptions for pathology), the geographical distribution and demographic characteristics of the subjects with visual disability were described in the ASL CN1 area. The level of detail has reached granularity at the single municipality and single age level.

For the year 2018 among 416.000 residents in ASL CN1, about 4.000 visual impaired subjects were identified (3.188 on the basis of the presence of an exemption for glaucoma, 542 from hospital discharge and 535 at the emergency department). Assessing mortality in this subgroup, the mean age at death is slightly higher than that of general population (82,42 vs 81,39 years respectively). This can be suggestive of an efficient handling the local population with visual disability. The developed indicators can be extended to other periods and new areas.

Key messages

Visual screening represents a promising health policy as it can identify visual disability. Through the health information systems, the geographical distribution and demographic characteristics of the subjects with visual disability were described.

A diabetes focused inter-sectoral approach to a more equal and healthy living environment in Turin

The purpose of the project is to pilot an innovative intervention aiming to enroll the local actors in the responsibility to reduce inequalities in the epidemic of diabetes in the city. In the next few years, all the actors of the diabetes pathway (mostly the health professionals but also the local non-health actors) should analyse and recalibrate their organization and functioning, revising primary care system in the light of the paradigm of pro-active medicine

At first, a community of practice of health professionals involved in diabetes is being convened with the mandate to revise the process of generation, recognition and treatment of diabetes in order to identify the mechanisms potentially able to create inequalities. At the same time a community of practice of local non-health actors is being convened to react to the analysis of mechanisms of the community of practices of health professionals, with the mandate to interpret the data and enrich the diagnosis on mechanisms, relevance and responsibility. The two communities of practice will elaborate a plan of innovation involving the responsibility of the institutions and actors that are playing a role in the mechanisms generating diabetes inequalities, setting targets, assigning responsibilities, orienting resources. The Turin Longitudinal Study will serve as a tool for monitoring the process and assessing results and impact of this innovation. The expected results concern two types of effects, which are monitored. Firstly, improving the care system and collaboration among different services should have an impact on the accessibility and quality of care. These improvements will be introduced concerning specific problems that emerge from the analysis. Secondly, social capital should increase thus increasing the resources available to people, especially the most fragile and isolated ones. The results of this pilot on diabetes will be replicated for the other chronic diseases of the National Plan for Chronic Disease.

Macroalgal forest vs sea urchin barren: Patterns of macro-zoobenthic diversity in a large-scale Mediterranean study

The study aimed at contributing to the knowledge of alternative stable states by evaluating the differences of mobile and sessile macro-zoobenthic assemblages between sea urchin barrens and macroalgal forests in coastal Mediterranean systems considering a large spatial scale. Six sites (100 s km apart) were selected: Croatia, Montenegro, Sicily (Italy), Sardinia (Italy), Tuscany (Italy), and Balearic Islands (Spain). A total of 531 taxa, 404 mobile and 127 sessile macro-invertebrates were recorded. Overall, 496 and 201 taxa were found in macroalgal forests and in barrens, respectively. The results of this large-scale descriptive study have met the expectation of lower macrofauna complexity and diversity in barrens rather than in macroalgal forests, and have allowed estimating the differences in levels of diversity and the consistency of variability across Mediterranean sites. Some peculiar patterns in barrens, related to both abundance of specific taxa and to high values of beta diversity, have been evidenced.

Indocyanine Green Compression Technique for Anatomical S8 Dorsal Subsegmentectomy for Hepatocellular Carcinoma

BACKGROUND

Anatomical resection (AR) is a recommended surgical treatment for hepatocellular carcinoma (HCC), although the conventional procedure (dye injection) for AR is difficult to reproduce.1,2 The tumor-feeding portal pedicle compression technique has been proposed as an easy, reversible, repeatable, and oncologically suitable procedure,3-5 and its only drawback is the sometimes faint discoloration of the compressed area. For enhancing its visibility, indocyanine green (ICG) fluorescence imaging has been introduced. This technique is herein disclosed while performing an anatomical S8 dorsal subsegmentectomy.

METHODS

A 66-year-old male was admitted for a 3.7 cm HCC in segment 8 dorsal (S8d) grown in non-alcoholic steatohepatitis. The preoperative liver function was graded as Child-Pugh class A. After adequate liver mobilization, the subsegmental Glissonian pedicle to S8d was identified by intraoperative ultrasound (IOUS) and compressed transparenchymally between the probe and the surgeon's fingertip positioned at the opposed side of the liver. Once IOUS-guided vessel compression had begun, ICG was administered intravenously. The compressed vessel created a non-stained area, which was marked using electrocautery.

RESULTS

An anatomical S8d subsegmentectomy using the ICG compression technique was performed. There was no congested area and the right hepatic vein was exposed at the hepatocaval confluence because the resection was conducted in a subsegmental fashion. There was no morbidity and no blood transfusions were necessary. The patient was discharged on day 6 after surgery.

CONCLUSIONS

This video shows, for the first time, the finger compression technique successfully implemented by ICG imaging for performing an AR for HCC.

Is the outcome after hepatectomy for transitional hepatocholangiocarcinoma different from that of hepatocellular carcinoma and mass-forming cholangiocarcinoma? A case-matched analysis

Hepatocholangiocarcinoma (HCC-CC) is a rare malignancy containing features of both hepatocellular carcinoma (HCC) and mass-forming cholangiocarcinoma (MFCCC), of which the outcome after hepatectomy remains to be clarified. The aim of this study was to analyze the characteristics and outcomes of patients with transitional HCC-CC and compare them with those of patients with HCC and MFCCC. Our prospectively maintained database was queried, and 14 transitional HCC-CC patients were identified over a total of 406 consecutive hepatic resections. A 1:1:1 match was performed with HCC and MFCCC patients operated in the same period. A total of 42 patients were matched according to tumor stage (T1-2-3, N0, M0), number of tumors, R0 resection, no 90-day mortality, and follow-up. Primary endpoints were disease-free survival (DFS) and overall survival (OS). Disease-free survival rates at 1-, 3-, and 5-year were 71.4%, 57.1%, 35.7% for transitional HCC-CC patients; 85.7%, 40.4%, 10.1% for HCC patients; 85.1%, 34.0%, 22.7% for MFCCC patients (5-year DFS: HCC-CC vs. HCC, p = 0.575; HCC-CC vs. MFCCC, p = 0.766, respectively). Similarly, OS rates at 1-, 3-, and 5-year were 92.9%, 71.4%, 64.3% for transitional HCC-CC patients; 100%, 64.3%, 41.7% for HCC patients; 100%, 54.5%, 43.6% for MFCCC patients (5-year OS: HCC-CC vs. HCC, p = 0.891; HCC-CC vs. MFCCC, p = 0.673, respectively). When accurately matched with respect to tumor burden, transitional HCC-CC patients show similar outcomes to those of HCC and MFCCC patients. Further evaluations of differences in tumor biology are necessary to better characterize the prognosis of transitional HCC-CC patients.

A nanomechanical model enables comprehensive characterization of biological tissues in ultrasound imaging

Sonography, elastography, sonoelastography are ultrasound imaging techniques commonly used in the clinical practice for the diagnosis of many pathological conditions. These highly reliable, non-invasive methods use high frequency, elastic pressure waves (ultrasounds) to interrogate the internal structure of biological tissues and organs, and the continuum mechanics hypothesis to reconstruct, from the output of the system, the biophysical characteristics of the samples. Nevertheless, continuum mechanics disregards the discrete nature of tissues and organs, resulting in an inability for the model to describe some important tissue biophysical characteristics such as the cell size and their spatial layout. Here, we used the theory of doublet mechanics - a discrete nano-mechanical field theory - to model the propagation of ultrasounds in a multilayered biological tissue. We found that the output of the model exhibits a very high sensitivity to the macro and micro characteristics of the tissue, including cell size. We used results from the model to correlate the internal structure of the samples to the reflection coefficient, i.e. the continuum level response of the system. This model, and its more sophisticated evolutions that will be developed over time, can complement traditional ultrasound imaging, and provide ways to analyze non-invasively living tissues with a resolution inaccessible to conventional techniques of analysis, including positron emission tomography, computer tomography, and magnetic resonance.