SARS-CoV-2 infection: efficacy of extensive vaccination of the healthcare workforce in a large Italian hospital

BACKGROUND

A prospective observational study involved 13,787 Health Care Workers (HCWs) of a large hospital to assess the effectiveness of a SARS-CoV-2 mRNA vaccine.

METHODS

The daily incidence of infections was estimated from 1st October 2020 to 30th April 2021 and compared with that of the province of Turin (2.26 million). In the middle of this period, a mass vaccination began among HCW, and its effect was assessed.

RESULTS

In the first half-period, 1,163 positive HCWs were observed, the average daily incidence rate per 100,000 being 79.58 (± 15.58; 95% CI) compared to 38.54 (± 5.96; 95% CI) in the general population (p<0.001). The vaccination campaign immunized 9,843 HCWs; among them, the average daily incidence was 14.23 (± 2.73; 95% CI) compared to 34.2 (± 2.95; 95% CI) in the province (p<0.001). Among fully vaccinated HCW, 59 cases were observed, giving rise to an incidence of 6.3 (± 2.66; 95% CI) much lower than in the province (p<0.001). In the second half of the observation period, the RR for HCWs compared to the province dropped from 2.07 (1.96 - 2.18; 95% CI; p<0.001) to 0.5 (0.42 - 0.58; 95% CI; p<0.001) and to 0.17 (0.13 - 0.22; 95% CI; p<0.001) for unvaccinated and vaccinated HCWs, respectively. The RR of vaccinate HCW was 0.43 (0.31 - 0.58; 95% CI; p<0.001) compared to unvaccinated. In the second half of the observation period, unvaccinated HCWs had a RR of 0.21 (0.18 - 0.25; 95% CI; p<0.001) as compared to the first one. A linear regression model (R2 = 0.87) showed that every percent increase in vaccinated HCWs lowered daily incidence by 0.94 (0.86 - 1.02; IC 95%; p<0.001). Vaccinated HCWs had a RR of 0.09 (0.07 - 0.12; 95% CI; p<0.001) compared to unvaccinated HCWs, which led to estimated effectiveness of the two-dose vaccine of 91 % (± 3 %; CI 95%) similar to that reported by the manufacturer.

Interrupted time series analysis of the impact of a bundle on surgical site infections after colon surgery

BACKGROUND

Surgical site infections (SSIs) are monitored in Italy through a national surveillance system. A 4-element bundle was introduced in 2012, consisting of: appropriate preoperative shower and hair removal, perioperative normothermia, and antibiotic prophylaxis. The aim of this study was to evaluate the effect of the intervention on SSI rates after colon surgery.

METHODS

A retrospective cohort study was conducted between 2008 and 2019 in 29 hospitals of northern Italy. An interrupted time series analysis (ITSA) was modeled to assess the bundle's impact on SSI trends. Logistic regression was performed to identify predictors of SSI among procedures performed in the postintervention period, comparing full and partial bundle compliance.

RESULTS

Data of 5487 colon surgery procedures were collected (1243 preintervention and 4244 postintervention). The ITSA identified a significant change in the monthly postintervention SSI trend of -0.19% and a change in level of -2.09%. A significant protective effect of full bundle compliance compared to partial bundle compliance (OR 0.74, P.043) was found, whereas the single effect of the bundle elements was nonsignificant.

CONCLUSIONS

Results of this study suggest this relatively simple bundle protocol is effective in reducing SSI risk.

Beyond COVID-19: a cross-sectional study in Italy exploring the covid collateral impacts on healthcare services

With COVID-19, populations are facing unmet health needs due to fear of contagion, lockdown measures and overload of Healthcare services (HCS). The COCOS study aimed to investigate reduced healthcare access among Italian citizens, additionally looking for specific subgroups that will primarily need health services in the next future. A cross-sectional online survey was performed during the Italian lockdown between April and May 2020. Descriptive, univariable and multivariable (logistic regression models) analyses were performed: results are expressed as Odd Ratios and Adjusted Odd Ratios (ORs and AdjORs). Totally, 1,515 questionnaires were collected. Median age was 42 years (IQR 23), 65.6% were females. Around 21.8% declared to suffer from chronic diseases. About 32.4% faced a delay of a scheduled Medical Service (MS) by provider decision, 13.2% refused to access scheduled MS for the fear of contagion, and 6.5% avoided HCS even if having an acute onset issue. Alarmingly, 1.5% avoided Emergency Department when in need and 5.0% took medications without consulting any physician: patients suffering from chronic conditions resulted to be more prone to self-medication (AdjOR [95% CI]: 2.16 [1.16-4.02]). This study demonstrated that indirect effects of COVID-19 are significant. Large groups of population suffered delays and interruptions of medical services, and the most vulnerable were the most affected. Immediate efforts are needed to reduce the backlog that HCSs incurred in.

Cost-Effectiveness Analysis of the Prophylactic Use of Ertapenem for the Prevention of Surgical Site Infections after Elective Colorectal Surgery

Standard surgical antimicrobial prophylaxis (SAP) regimens are less effective in preventing surgical site infections (SSIs) due to rising antimicrobial resistance (AMR) rates, particularly for patients undergoing colorectal surgery. This study aimed to evaluate whether ertapenem should be a preferred strategy for the prevention of SSIs following elective colorectal surgery compared to three standard SAP regimens: amoxicillin-clavulanate, cefoxitin, and cefazolin plus metronidazole. A cost-effectiveness analysis was conducted using decision tree models. Probabilities of SSIs and AMR-SSIs, costs, and effects (in terms of quality-adjusted life-years) were considered in the assessment of the alternative strategies. Input parameters integrated real data from the Italian surveillance system for SSIs with data from the published literature. A sensitivity analysis was conducted to assess the potential impact of the decreasing efficacy of standard SAP regimens in preventing SSIs. According to our models, ertapenem was the most cost-effective strategy only when compared to amoxicillin-clavulanate, but it did not prove to be superior to cefoxitin and cefazolin plus metronidazole. The sensitivity analysis found ertapenem would be the most cost-effective strategy compared to these agents if their failure rate was more than doubled. The findings of this study suggest ertapenem should not be a preferred strategy for SAP in elective colorectal surgery.

Prevalence of gastro-oesophageal reflux symptoms: An Italian cross-sectional survey focusing on knowledge and attitudes towards lifestyle and nutrition

INTRODUCTION

The gastro-oesophageal reflux disease (GERD) is a public health issue for its prevalence and association with low life quality and substantial costs. Since most of Italian data refer to over a decade ago, the aim was to provide an updated estimate of GERD symptoms prevalence. Knowledge about appropriate nutrition and behaviours in presence of GERD was assessed. Predictors for symptoms presence and knowledge were explored.

METHODS

This study was an online cross-sectional survey that investigated socio-demographics, knowledge about nutrition/behaviours in case of GERD (Knowledge Score KS: percentage of right answers), nutrition/lifestyle attitudes. The questionnaire included the GerdQ to assess symptoms (presence if score ≥8). Adults resident in Italy were enrolled between June and August 2019 through convenience sampling on the major social networks (sample size = 559). Descriptive analyses were run. Multivariable regressions were performed to explore predictors of symptoms presence and KS.

RESULTS

The 27.7% had GERD symptoms. Among them, 33.8% never received GERD information by their general practitioner (GP). Body mass index (P = .036), secondary education (P = .040) were associated with higher symptoms risk. Weekly exercise was associated with lower risk (P < .001). Median KS was 92% (IQR = 12). Sleeping on the left side, chocolate, citrus fruit, mint reported the lowest right answers percentages. None/basic education was negatively associated with KS (P < .001), being female (P = .004) and in a relationship (P = .012) positively.

CONCLUSIONS

A high prevalence was reported, consistently with the worldwide increasing trend. Despite overall knowledge was high, specific gaps were found. GPs should improve communication and awareness campaigns targeted to less known aspects must be planned.

Healthcare Workers' (HCWs) attitudes towards mandatory influenza vaccination: A systematic review and meta-analysis

Influenza is a disease responsible for thousands of deaths every year. Although healthcare workers (HCWs) represent a way of contagion for patients, vaccination coverage among them is low. Mandatory vaccination has been proposed, but controversies remain. This systematic review and meta-analysis aimed to assess the acceptance of mandatory vaccination by HCWs, and to investigate associated characteristics. MEDLINE, Scopus, Embase, PsycInfo, CINAHL and Web of Science were used to search for studies assessing the topic. PRISMA statements were followed. Of the 13,457 univocal records found, 52 studies were included in the systematic review and 40 in the meta-analysis. The pooled proportion of HCWs accepting the policy was of 61% (95% CI: 53%- 68%) but with great heterogeneity between continents (from 54% in Europe to 69% in Asia) and in different professionals (from 40% in nurses to 80% in students). Vaccinated HCWs agreed more frequently with mandatory vaccination than non-vaccinated ones. More studies that consider mandatory vaccination acceptance as the main outcome are needed, but the results of this study confirm that in some settings the majority of HCWs favour mandatory vaccination. This, combined with effects that a flu epidemic could have if overlapped to pandemics with similar symptoms, requires renewed considerations on mandatory vaccination.

Beyond COVID-19: a cross-sectional study in Italy exploring the Covid Collateral Impacts

Background

The COVID-19 pandemic is a calamity affecting many aspects. In particular healthcare services (HCS) are facing a great stress-test worldwide. The present work aims to explore what were health needs, beyond COVID, not covered among Italian citizens, due to fear, lockdown measures and overload of HCS, also in order to understand if there are specific subgroups of populations that will need urgent access to health services in the next future.

Methods

COCOS (COvid COllateral impactS) is a cross-sectional study performed during the Italian lockdown between April and May 2020. A forty-nine items online questionnaire was filled by the respondents. Participation was voluntary and without compensation. Informed consents were obtained. Descriptive, univariable and multivariable (logistic regression models) analyses were performed: results are expressed in ORs.

Results

Totally, 1,515 questionnaires were collected. Median age was 42 years, 65.6% were females. Around 22% declared to suffer from chronic diseases. Interestingly, 32.4% of the sample faced a delay of a scheduled Medical Service (MS) by provider decision, while 25.6% reported that this issue hit a family member. More than 13% refused to access scheduled MS for the fear of contagion, and the 6.5% avoided HCS even if having an acute onset issue: this behavior was associated with scarce trust in physicians (AdjOR 0.75); alarmingly, 1.5% avoided Emergency Department when in need and 5% of the sample took medications without consulting any physician: patients suffering from chronic conditions resulted to be more prone to self-medication (AdjOR: 2.16; 95% C.I.: 1.16-4.02).

Conclusions

COVID-19 immediate effects are just the tip of the iceberg. Large groups of population suffered delays and interruptions of medical services, and the most vulnerable were the most affected. To estimate the effects of the pandemic on non-COVID-19 patients is required, leading to aimed efforts, to reduce the backlog that HCS incurred in.

Key messages

COVID-19 biggest toll on public health is still to come if not prevented, due to temporary but widespread suspensions of scheduled medical services and the avoidance of these for fear of contagion.

The most in need are the most vulnerable: older patients and those with chronic conditions are the most affected by suspension of medical services and will potentially pay the greatest cost.

Meta-analysis of the efficacy of ertapenem in preventing SSIs after elective colorectal surgery

Background

The efficacy of standard surgical antimicrobial prophylaxis (SAP) regimens in preventing surgical site infections (SSIs) after colorectal surgery is declining, along with rising rates of intestinal colonization with antimicrobial resistant (AMR) Enterobacteriaceae and Bacteroides spp. Ertapenem has been approved by the FDA and EMA for SAP in this context, however it has not been used extensively for this indication out of concern for increasing carbapenem-resistance rates. A limited number of studies have investigated the efficacy of ertapenem in preventing SSIs after colorectal surgery, comparing ertapenem with different agents or combinations of agents.

Methods

A systematic review was conducted following the PRISMA checklist. PubMed, Embase and Cochrane databases were searched for studies measuring the efficacy of ertapenem in preventing SSIs following elective colorectal procedures. Studies were considered eligible if they reported extractable data on the proportion of SSIs and/or on the proportion of AMR pathogens isolated from SSIs. Data from all ertapenem study arms were extracted. A random effects meta-analysis was performed to estimate the overall proportion of SSI.

Results

Of 1109 identified studies, 5 met the inclusion criteria and were included in the meta-analysis, totalling 3176 participants. The pooled proportion of SSI was 0.10 (95% CI 0.05-0.18; I2=96%; τ2=0.6323; p ≤ 0.01). Only one study reported data on carbapenem resistance: out of 124 isolates from 30 patients, 1 gram negative carbapenem-resistant isolate was identified.

Conclusions

The pooled proportion of SSI using ertapenem as SAP found in this study is in line with the proportion of SSI using standard SAP found by a recent meta-analysis (Gandra, 2019). According to this analysis, the benefit of ertapenem does not outweigh the risk of further promoting AMR, although results should be interpreted with caution due to the high heterogeneity among included studies.

Key messages

According to this study, the efficacy of ertapenem in preventing surgical site infections after elective colorectal surgery is comparable to the efficacy of standard surgical antibiotic prophylaxis. The emergence of carbapenem resistance after surgical prophylaxis with ertapenem should be further investigated through longer term studies before widespread use for this indication.

Vaccination knowledge, attitudes and practices in patients with HIV: a cross-sectional survey

Background

Infectious diseases are more common and severe in patients with HIV, which show different response to vaccines and a diminished protection. It is therefore very important to assess knowledge and attitudes towards vaccination in people with HIV, since precise vaccination coverage and vaccine hesitancy are not well established in this subgroup of patients.

Methods

A sample of 119 patients with HIV completed a cross-sectional survey. Patients were recruited during their routine medical examination at the infectious diseases clinic in Turin. The survey explored these main areas: demographics and history of HIV infection, vaccination history, attitudes towards vaccination, confidence in the public health system, contagion risk and disease seriousness perception. In this preliminary phase descriptive analysis were conducted.

Results

Preliminary data show that mean age of the participants was 49.51 years, 80% were males. The median of HIV infection duration was 10 years, while the median of the lymphocyte count was 762.50 cells/mm3. The disease with the highest vaccination coverage was tetanus (88.7%), considered a serious or very serious disease by 85.6% of the participants, despite low or very low contagion risk perception (84.1%). The disease with the lowest vaccination coverage was Herpes Zoster (7.3%), despite high or very high seriousness perception (70%). Furthermore, 99.1% of the participants showed high or very high confidence toward public health system professionals, and the majority of them (59.5%) stated that vaccines are more useful for the community than for the single person.

Conclusions

Vaccination coverage is still not fully satisfactory regarding diseases considered infrequent or mild. Considering the high level of confidence toward the public health system that has emerged, it is necessary to implement informative and operative strategies about vaccination for European HIV patients, which are particularly at risk regarding infectious diseases.

Key messages

Vaccination coverage and risk perception in HIV patients is not satisfactory for many diseases and an effort to implement informative strategies in Europe is needed. The role of vaccination in preventing infectious diseases in HIV patients should be recognized and strengthened by relying on the high level of confidence toward European public health systems.

Empowering seizures awareness: knowledge, attitudes and fears of school staff trained in rescue drugs

Background

The administration of rescue medication at school concerns, in all Europe, students suffering from chronic pathologies for which it may be essential, on doctor's prescription, to take therapy during school hours. About 16% of the school's emergency calls are related to a seizure crisis. In this case, since the parents are absent, the first rescuer is necessarily the school staff, who should be properly trained because prolonged seizures can cause severe harm and even death.

Methods

Every year, the Local Health Unit “TO3”, in Northern Italy, provides training for school staff to administrate rescue medication at school. A questionnaire survey on knowledge, attitudes and fears towards seizures was conducted during the school year 2019/2020. The same questionnaire was administered to school staff trained for seizures at the end of the course, while the staff trained for other diseases such as diabetes, allergies and asthma completed it before the course.

Results

110 questionnaires have been completed. About 60% of the sample had been trained in seizure management at least once in their lifetime. The respondents had a mean age of 48.7±9.6 years and a mean job experience of 17.4±11.2 years. Most of them were females (83%). Median knowledge score (10 points max) in subjects with no seizures training was 6, while it was 8.5 in subjects with seizures training (p &lt; 0.001). The self-reported level of confidence in their own skills to administer rescue medication was high in 10.4% of subjects not trained for seizures and in 63.8% of those trained (p &lt; 0.001).

Conclusions

Results suggest that medical training for school staff boosts knowledge scores and levels of self-confidence relating to the administration of rescue medication. Moreover, after the training, the school staff changed attitude towards seizures, no longer considered as a problem, and became more aware, less fearful, and more inclined to act in case of need, making school a safer place for all students.

Key messages

School staff trained in the administration of rescue medication are fundamental to guarantee the right to education for students suffering from chronic pathologies such as seizures. Empowering seizures awareness in schools is very important to change the attitude of school staff no longer considering seizures as a problem, making school a safer place for all European students.

Core competencies for public health medicine: protocol for an Italian inter-society Delphi consensus

Background

Developing core competencies is crucial for the quality of educational curricula in Public Health Medicine (PHM). The postgraduate medical School of Public Health of the University of Pisa developed a core curriculum for PHM specialists (CCV0), adapted from the list of core competencies promoted by the Association of Schools in Public Health of the European Region (ASPHER).

Objectives

We will apply the Garavalia method, a three-round step-wise Delphi consensus, for adapting the CCV0 to the Italian context. Participants will be enrolled through purposive sampling among the members of the Italian Society of Hygiene, Public Health and Preventive Medicine, aiming at the best possible balance between geographical distribution and professional profiles (PHM residents, academics, and Public Health operators). A sample of representatives of other PHM-related Italian Societies will also be included.

Results

We will invite 139 participants through e-mail invitations. During round zero, we will collect additional suggested competencies through an open-ended question. We will analyze data qualitatively and integrate the most relevant suggestions with the CCV0, resulting in the CCV1. A subgroup of 64 experts (among PHM residents, academics, and representatives of the included Societies) will participate in the following rounds. The first round will use Likert scales to measure agreement on the appropriateness of the CCV1 competencies. Consensus and agreement will be computed using the RAND/UCLA criteria. The final round will reach out for consensus repeating the same ratings for competencies classified as uncertain, with the help of quali-quantitave summaries of the answers of the first round. The final document (CC2) will report competencies classified as consensus or uncertain, with the corresponding level of consent.

Conclusions

The CC2 will enable current courses to be assessed and inform the design of future educational programs for Italian PHM residents.

Key messages

The Delphi method ensures anonymity and a balanced involvement of all stakeholders –including medical residents- in the development of a core curriculum for Public Health Medicine specialists. A consensus on core competencies in Public Health Medicine will enable the evaluation of current training curricula and the development of future educational programs.

Predicting difficult discharge from surgical wards: a cohort study in an Italian sample

Background

Poor discharge planning (DP) can increase costs for European hospitals and worsen patient's experience. Validated scores are used in internal medicine to identify clinical or social difficulties in discharges upon admission but there is a lack of such a tool in the surgical context. This study aims to detect early predictors of difficult discharge.

Methods

Socio-demographic and clinical data from 15,165 surgical Hospital Discharge Records (SDOs) of the Molinette hospital of Turin, including an additional pre-surgery evaluation of social vulnerabilites from a subgroup of 388 patients, were collected between 2017 and 2019. Outcomes were length of stay (LOS), discharge destination (home, Long Term Care - LTC). Descriptive analysis and multivariable regressions were performed.

Results

52.3% of patients were male and the median age was 61 (IQR 22). Median LOS was 6 days (IQR 6) but 15 (IQR 30) for patients discharged to LTC. 18.7% were admitted through the Emergency Department (ED) with a median LOS of 7 (IQR 10). 17.6% of the subsample declared living alone. Linear regression showed associations between discharge to LTC, admission through ED, diagnosis of neoplasia and a longer LOS (Bs 10.76, 5.21 and 2.57 respectively, p &lt; 0.001). Logistic regression showed associations between admission by ED, age and discharge to LTC (OR 1.77 and 1.02 respectively, p &lt; 0.001). Preliminary analysis of the subsample did not show any new association with social vulnerabilities, but 98.2% attended elective surgery and thus probably had time to prepare for discharge.

Conclusions

Surgery LOSs are extremely diversified among patients. This study identified several predictors of difficult discharge, mainly admission through ED, discharge to LTC and diagnosis of neoplasia, suggesting difficulties handling an unexpected event by patients' relatives. Further studies gathering patients' data at admission are required in order to develop a predictive tool useful for European hospitals.

Key messages

Clinical (cancer) and social (sudden event, no housing solutions) factors can determine a difficult discharge for European patients and should be investigated to anticipate discharge planning. Elective surgery patients seem less prone to social vulnerabilities (e.g. living alone), probably because relatives have time to prepare, while ED patients often need help in the discharge process.

Mobile Apps for Vaccination: an in-depth scan of Apple App Store

Introduction

In a recent estimation, time spent engaging with smartphones is 3h43m in 2019 in US population, surpassing conventional media such as TV. However, smartphones are not just a distraction from everyday life, but also a powerful tool by which to search for information and interface with institutions and services providers. National Healthcare Systems are not an exception, in particular for tackling vaccine hesitancy and fake news: in this frame, we have focused our research on mobile apps for vaccination.

Methods

We scanned Apple App Store through an API (Application Programming Interface) made available from Apple Inc. itself searching single words related to vaccination (no Boolean operators available) from both Italian and English-speaking markets, then exporting and merging the results. The univocal 121 apps obtained were then classified according by category, description, target population, informative materials and n° of reviews.

Results

The majority of apps falls under the “organizer” category (49 apps, 40.5%) with almost half of them (22) with vaccination as main topic (vaccine reminders and recorders), the others as part of a health management tool, mostly designed for parents. Just 32% of these apps give information regarding vaccines or preventable diseases. The second one is medical education apps (26.4%) focused on healthcare workers with guidelines and updates, mainly in English, then games (11.6%), Local Healthcare Service booking services (9.1%) of which only 4 from Italy, and lastly travel management apps (2.5%).

Conclusions

Organizers and reminders are a recognised tool to increase vaccine adhesion, but a complete plain-language information should be provided together with the service, to answer the most frequently asked questions from parents and dispel their doubts. In the meanwhile, Italian NHS results rarely adequate in providing a fully digital experience, from planning shots to registration of vaccine status.

Key messages

Mobile vaccination organizers are a helpful tool for parents, but they are undervalued as a first-hand source of knowledge about vaccination programs. Italian NHS should develop a modern mobile interface in order to book vaccination services as a big nudge towards the increase of vaccine adherence.

Depression, suicidal ideation and stress among Italian medical students: PRIMES multicentre study

Background

Depression represents a public health priority and a major contributor to suicide worldwide. Medical students (MS) have been reported as a high-risk group and data are required to implement action plans. This study aimed to investigate depressive symptoms (DS), suicidal ideation (SI) and perceived stress (PS), and analyse factors that may impact on such conditions.

Methods

In 2018, a multicentre cross-sectional study (PRIMES) was carried out in 12 Medical Schools, reaching 2513 MS throughout Italy. Socio-demographic data and psychometric tests were collected. Main outcomes were measured by Beck Depression Inventory-II (DS and SI) and Perceived Stress Scale (PS). Mostly, multivariable logistic and linear regressions were run (p &lt; 0.05 as significant).

Results

The prevalence of DS and SI was 29.5% and 14%. The mean PS score was 18.6 (SD = 7.8), within a range to 0 from 40. Preliminary results showed that the variables associated with a higher risk of reporting all outcomes (DS, SI, PS, respectively) were: increasing age (p = 0.004, p = 0.016, p = 0.003), bisexuality (p = 0.002, p &lt; 0.001, p &lt; 0.001), poor economic status (p = 0.010, p = 0.014, p &lt; 0.001), psychiatric family history (p = 0.007, p = 0.003, p = 0.029), negative judgment about medical school choice (all p &lt; 0.001), unsatisfying classmates' friendships (p = 0.027, p &lt; 0.001, p &lt; 0.001) and classmates' climate competitive and hostile (all p &lt; 0.001). An excellent family bond reduced the odds instead (all p &lt; 0.001). Other socio-demographic and university-related items resulted associated to the outcomes in different ways.

Conclusions

PRIMES showed a high prevalence of DS and SI among MS, with alarming PS levels. Since this issue seems common worldwide, further analyses to understand the determinants are needed and a population-based approach pertaining to public health must be addressed, e.g. to increase resilience. Universities must realize interventions, offer counselling and improve modifiable factors, such as learning climate.

Key messages

Italian medical students reported a prevalence of depressive symptoms and suicidal ideation of 29.5% and 14% respectively, both higher than the prevalence among same-aged general population. Depression, suicidal ideation and stress were mainly influenced by age, sexuality, finances, psychiatric family history, judgment on medical school, family bond, classmates’ friendships and climate.

Orthorexia Nervosa, a challenging evaluation: analysis of a sample of customers from organic food stores

An excessive control of quality of food can turn into Orthorexia Nervosa (ON). The organic store customers (OSCs) can be apopulation at risk for ON. The aims of this study were to assess ON symptoms prevalence among them, comparing them with non-OSCs and investigate potential predictors of ON. Across-sectional survey was carried among 121 OSCs and 119 non-OSCs. The questionnaire assessed socio-demographic characteristics and investigated current dietary habits. The main outcome measures used were ORTO-15 and Eating Habits Questionnaire (EHQ). Chi-squared analyses were performed to assess differences between groups (OSCs and non-OSCs). Logistic and linear regressions were performed to evaluate potential predictors of ON symptoms and to compare questionnaires. As main results, OSCs had ahigher probability to result positive at ORTO-15 compared to non-OSCs. The prevalence among OSCs was 69.4% and 23.1% (using ORTO-15 with 40 and 35 cut-offs). Higher EHQ scores were reported among OSCs (p < 0.001). Potential predictors were mainly being an OSC or following food restrictions. Predictors varied using different cut-offsof ORTO-15 and EHQ. These results suggest the association between OSCs and ON symptoms. Some differences were found between ORTO-15 and EHQ. Further studies need to be performed to improve diagnostic tools.

Prevalence of depressive symptoms among Italian medical students: The multicentre cross-sectional "PRIMES" study

Background

Four percent of the world’s population suffers from depression, which is a major public health issue. Medical students are at risk, as their depressive symptoms (DS) prevalence is reported to be approximately 27% worldwide. Since few data on Italian medical students exist, this study aimed to estimate their DS prevalence and assess risk and protective factors.

Methods

The PRIMES was a multicentre cross-sectional study performed in 12 Italian medical schools. Questionnaires were self-reported and included 30 sociodemographic items and the Beck Depression Inventory-II (BDI-II). The primary outcome was the presence of DS (BDI-II score≥14). The main analyses were chi-squared tests and multivariable logistic regressions with a p-value<0.05 considered significant.

Results

The number of collected questionnaires was 2,513 (117 BDI-II incomplete). Females accounted for 61.3% of the respondents, and the median age was 22 years (IQR = 4). The prevalence of DS was 29.5%. Specifically, 14.0% had mild depression, 11.1% had moderate depression, and 4.5% had severe depression. The main risk factors for DS were age, being female, bisexual/asexual orientation, living with partner/housemates, poor economic status (worsened by living far from home), less than 90 min of weekly exercise, relatives with psychiatric disorders, personal chronic disease, judging medical school choice negatively, unsatisfying friendships with classmates, competitive and hostile climate among classmates, thinking that medical school hinders specific activities and being worried about not measuring up to the profession. Protective factors included family cohesion, hobbies, intellectual curiosity as a career motivation and no worries about the future.

Conclusion

Italian medical students are at high risk of reporting DS, similar to the global population of medical students’. Medical schools must make efforts to implement preventive and treatment interventions by offering counselling and working on modifiable factors, such as lifestyle and learning climate.

Depressive symptoms and suicidal ideation among medical students: a cross-sectional survey in Turin

Background

A high prevalence of mental illnesseshave been detected in medical students (MS) during college. The aim of this study was to evaluate depressive symptoms (DS) and suicidal ideation (SI) in MS and estimate factors that can influence these conditions.

Methods

In November 2018 a cross-sectional survey was conducted at the School of Medicine of Turin, Italy. The questionnaire consisted of a 30-item sociodemographic part and 3 psychometric tests, including the Beck Depression Inventory II (BDI-II). Overall, 506 surveys were collected. Multivariable logistic regressions were performed mainly. The significance level was p ≤ 0.05.

Results

Females were 65% and median age was 22 (IQR 19-24). Median BDI-II score was 9 (IQR 4-15). Presence of DS (BDI-II score&gt;13) and of SI was found in 29% and 15% of the sample, respectively. Preliminary results showed that females (OR 2.03, CI: 1.16-3.56), non-heterosexuals (OR 2.69, CI: 1.49-4-84), participants negative about their college choice (OR 4.79, CI: 2.78-8.26) had a higher risk to report DS. MS who consider unsatisfying their friendships with classmates had a higher likelihood of reporting DS and SI (OR 3.10, CI: 1.16-8.30; OR 2.91, CI: 1.10-7.68, respectively). While the opposite was for those with good economic condition (OR 0.39, CI: 0.16-0.91; OR 0.21, CI: 0.09-0.52, respectively) and those practicing sports more than 90 min/week (OR 0.60, CI: 0.37-0.99; OR 0.47, CI: 0.25-0.89, respectively). Choosing Medicine for profit was related to a higher risk of reporting SI (OR 3.36, CI: 1.43-7.92), having a good family bond to a lower risk instead (OR 0.42, CI: 0.20-0.84).

Conclusions

Since depression is the leading cause of disability worldwide, it has to be a public health priority in Europe. It is essential to consider MS as at risk and set up interventions to improve factors surrounding them and help them to face difficulties in personal and academic life, without forgetting that they will be the future health professionals.

Key messages

Females, non-heterosexuals, students negative about Medical School choice and students unsatisfied with their friendships with classmates had a higher risk of reporting depressive symptoms. Students unsatisfied with their friendships with classmates and students who chose Medical School for profit had a higher risk of reporting suicidal ideation.

Markers of Hemostatic System Activation during Thromboprophylaxis with Recombinant Hirudin in Total Hip Replacement

Coagulation activation markers were studied in 148 patients undergoing total hip replacement under recombinant-hirudin (Desirudin, TMRevasc) prophylaxis with the aim of investigating the efficacy and safety of this anticoagulant compared with heparin in terms of biological effects on coagulation variables and bleeding. Hirudin (10, 15 or 20 mg s.c. b.i.d.) or unfractionated heparin (5000IU s.c. t.i.d.) was administered immediately before surgery and continued for 8-12 days. Activated partial thromboplastin time (aPTT), prothrombin activation fragment F1+2 (F1+2), thrombin-antithrombin III complexes (TAT) and D-dimer were measured at baseline and on postoperative days 1,3 and 6, immediately before the morning injection.

In comparison with baseline values, heparin had little effect on aPTT whereas the three hirudin doses prolonged aPTT significantly with no differences among the three doses. Moreover, there were no group differences in perioperative or cumulative blood loss or transfusion requirements. F1+2 fragment, TAT and D-dimer plasma levels were higher than at baseline during the entire postoperative period, with different trends (F1+2 increasing, TAT decreasing, D-dimer increasing, decreasing and then increasing again), but without significant differences among the four treatment groups. Our findings suggest that specific inhibition of thrombin seems a safe and efficacious mode of blocking thrombin activity after hip surgery although it does not prevent thrombin generation.

Coagulation Activation Markers in the Prediction of Venous Thrombosis after Elective Hip Surgery

Background. Despite prophylaxis, deep vein thrombosis (DVT) after hip surgery continues to occur frequently. Thus it would be helpful if before surgery patients at higher risk of DVT could be identified and more adequate prophylaxis given. As part of an international study on the prevention of DVT after total hip replacement, we investigated whether preoperative levels of three coagulation activation markers, prothrombin fragment F1+2 (F1+2), thrombin-antithrombin III complexes (TAT) and D-dimer, correlate with results of postoperative venography.

Methods. 159 patients undergoing total hip replacement were randomized to receive 10, 15 or 20 mg desirudin bid or 5000 IU unfractionated heparin tid immediately before surgery and then for 11 days, until bilateral venography was performed. Preoperative F1+2, TAT and D-dimer plasma levels were measured using ELISA procedures. As no difference among anticoagulant treatments or in the interaction between treatments and DVT was detected for any of the three variables, results are reported as pooled data.

Findings. The frequency of DVT was 18.8% in the low (0.75-1.33 nM) vs 65.7% in the high third of distribution (1.77-3.47 nM) of F1+2 (p ˂.001), 27.3% in the low (2.00-2.50 μg/1) vs 57% in the high third (5.10-61.00 μg/l) of TAT (p = .042), and 29.4% in the low (39-59 μg/1) vs 57.1% in the high third (129-651 μg/1) of D-dimer (p = .051).

Interpretation. Preoperative F1+2, TAT and D-dimer levels are associated with the risk of development of DVT after total hip replacement.

Clinical Utility of Prothrombin Fragment 1+2, Thrombin Antithrombin III Complexes and D-dimer Measurements in the Diagnosis of Deep Vein Thrombosis following Total Hip Replacement

Background: Measurements of prothrombin fragment 1+2 (F1+2), thrombin antithrombin III complexes (TAT) and D-dimer plasma levels have been proposed as non-invasive screening tests to exclude postoperative deep venous thrombosis (DVT). We investigated the diagnostic efficacy of these coagulation activation markers to rule out postoperative DVT in patients undergoing hip surgery under antithrombotic prophylaxis. Methods: In this substudy of a randomized double-blind thrombosis prophylaxis trial comparing three doses of desirudin (10, 15 or 20 mg b.i.d.) with unfractionated heparin (5000 IU t.i.d.) we used ELISA procedures to measure F1+2, TAT and D-dimer in 159 patients undergoing total hip replacement at baseline (day 0) and on postoperative days 1, 3 and 6. Bilateral venography was performed in all cases 8-11 days after surgery. Results: For the F1+2 assay sensitivity ranged from 73 to 83% in the three postoperative days investigated, and negative predictive value (NPV) from 68 to 74%. For TAT and D-dimer sensitivity ranged from 71 to 73% and from 71 to 83% and NPV from 61 to 65% and from 61 to 74% respectively. Interpretation: In terms of sensitivity and NPV F1+2 and D-dimer are equivalent and are superior to TAT. However, their accuracy is too low to rule out the presence of DVT after hip surgery under antithrombotic prophylaxis.

Inactivated Salmonella enterica serovar Typhimurium monophasic variant (S. Typhimurium 1,4,[5],12:i-) in sows is effective to control infection in piglets under field condition

The monophasic variant of Salmonella enterica serovar Typhimurium, namely Salmonella 1,4,[5],12:i-, has been increasingly responsible for foodborne human cases of disease and is most frequently detected in pork, since the variant is widely spread in pig farms. The aim of this study was to assess the efficacy of an autologous vaccine in decreasing the prevalence of Salmonella 1,4,[5],12:i-, in pigs. The trial was performed in a multisite pig production system of Northern Italy. The autogenous vaccine was prepared from the Salmonella 1,4,[5],12:i- strain isolated from the clinical case occurring in the Farm. Different immunization protocols were applied, ranging from interventions only in sows or piglets, or both. Microbiological analysis was performed to assess faecal shedding in sows and their offspring from birth till end of the production cycle and organ colonization of slaughtered pigs. Body weight of pigs was recorded at different time-points. Humoral immune response was evaluated in serum samples of sows and piglets. S. Typhimurium 1,4,[5],12:i- determines reduction of animal growth and farm production, furthermore, contamination of carcasses at the slaughterhouse. The load of bacteria entering into the food processing chain is differently influenced by the regimen of administration of inactivated vaccine. In particular, a combined vaccination of sows and their offspring was able to improve the weight gain of growing pigs, to limit Salmonella colonization of organs and to reduce the number of carrier pigs, and hence lowering the risk of introducing Salmonella organisms in the slaughter process.

Validation of the Non-Union Scoring System in 300 long bone non-unions

INTRODUCTION

Non-union of long bones is a significant consequence of fracture treatment. The ideal classification for non-union of long bones would give sufficient significant information to the orthopaedic surgeon to enable good management of the treatment required and to facilitate the creation of comparable study groups for research purposes. The Non-Union Scoring System (NUSS) is a new scoring system to assist surgeons in the choice of the correct treatment in non-union surgery. The aim of this study was to determine the evidence supporting the use of the NUSS classification in the treatment of non-unions of long bones and to validate the treatment algorithm suggested by this scoring system.

MATERIALS AND METHODS

A total of 300 patients with non-union of the long bones were included in the clinical study.

RESULTS

A radiographic and clinical healing was reached in 60 of 69 non-unions (86%) in group 1 (0-25 points), in 102 of 117 non-unions (87%) in group 2 (26-50 points), and in 69 of 84 (82%) in group 3 (51-75 points). The mean time to clinical healing was 7.17 ± 1.85 months in group 1, 7.30 ± 1.72 months in group 2 and 7.60 ± 1.49 months in group 3. The mean time to radiographic healing was 8.78 ± 2.04 months in group 1, 9.02 ± 1.84 months in group 2 and 9.53 ± 1.40 months in group 3.

DISCUSSION

There are few articles in the scientific literature that examine the classification systems for non-union.

CONCLUSIONS

A statistical analysis of the first results we have obtained with the use of NUSS showed significant rates of union in all the evaluated groups. This indicates that NUSS could be an appropriate scoring system to classify and stratify non-unions and to enable the surgeon to choose the correct treatment.

Production and secretion of interleukin 1 receptor antagonist in monocytes and keratinocytes

IL-1 receptor antagonist (IL-1ra) is a newly described member of the IL-1 family, isolated from supernatants of Ig stimulated monocytes, that binds competitively to IL-1 receptors without stimulating target cells (1-3). Also epithelial cells produce IL-1ra in a form which lacks a secretory signal sequence (4).Here we have compared the biosynthesis and secretion of IL-1ra in monocytes and keratinocytes. Our data show that monocytes produce two molecular forms of IL-1ra, of 18 Kd and 23 Kd respectively, which differ in the degree of glycosylation. Both forms are secreted via the "classical" endoplasmic reticulum (ER)-Golgi secretory pathway. By contrast keratinocytes produce IL-1ra in a molecular form of 20 Kd, which is not N-glycosylated: 20 Kd IL-1ra is detectable in supernatants of keratinocytes, although in small amounts. The presence of IL-1ra in keratinocytes cultures fluids is not inhibited by Brefeldin A (BFA), suggesting a possible secretion through the leaderless secretory pathway.

Laparoscopic approach to acute abdomen from the Consensus Development Conference of the Società Italiana di Chirurgia Endoscopica e nuove tecnologie (SICE), Associazione Chirurghi Ospedalieri Italiani (ACOI), Società Italiana di Chirurgia (SIC), Società Italiana di Chirurgia d'Urgenza e del Trauma (SICUT), Società Italiana di Chirurgia nell'Ospedalità Privata (SICOP), and the European Association for Endoscopic Surgery (EAES)

BACKGROUND

In January 2010, the SICE (Italian Society of Endoscopic Surgery), under the auspices of the EAES, decided to revisit the clinical recommendations for the role of laparoscopy in abdominal emergencies in adults, with the primary intent being to update the 2006 EAES indications and supplement the existing guidelines on specific diseases.

METHODS

Other Italian surgical societies were invited into the Consensus to form a panel of 12 expert surgeons. In order to get a multidisciplinary panel, other stakeholders involved in abdominal emergencies were invited along with a patient's association. In November 2010, the panel met in Rome to discuss each chapter according to the Delphi method, producing key statements with a grade of recommendations followed by commentary to explain the rationale and the level of evidence behind the statements. Thereafter, the statements were presented to the Annual Congress of the EAES in June 2011.

RESULTS

A thorough literature review was necessary to assess whether the recommendations issued in 2006 are still current. In many cases new studies allowed us to better clarify some issues (such as for diverticulitis, small bowel obstruction, pancreatitis, hernias, trauma), to confirm the key role of laparoscopy (such as for cholecystitis, gynecological disorders, nonspecific abdominal pain, appendicitis), but occasionally previous strong recommendations have to be challenged after review of recent research (such as for perforated peptic ulcer).

CONCLUSIONS

Every surgeon has to develop his or her own approach, taking into account the clinical situation, her/his proficiency (and the experience of the team) with the various techniques, and the specific organizational setting in which she/he is working. This guideline has been developed bearing in mind that every surgeon could use the data reported to support her/his judgment.

Laparoscopic adhesiolysis: consensus conference guidelines

AIM

Laparoscopic adhesiolysis has been demonstrated to be technically feasible in small bowel obstruction and carries advantages in terms of post-surgical course. The increasing dissemination of laparoscopic surgery in the emergency setting and the lack of concrete evidence in the literature have called for a consensus conference to draw recommendations for clinical practice.

METHODS

A literature search was used to outline the evidence, and a consensus conference was held between experts in the field. A survey of international experts added expertise to the debate. A public jury of surgeons discussed and validated the statements, and the entire process was reviewed by three external experts.

RESULTS

Recommendations concern the diagnostic evaluation, the timing of the operation, the selection of patients, the induction of the pneumoperitoneum, the removal of the cause of obstructions, the criteria for conversion, the use of adhesion-preventing agents, the need for high-technology dissection instruments and behaviour in the case of misdiagnosed hernia or the need for bowel resection.

CONCLUSION

Evidence of this kind of surgery is scanty because of the absence of randomized controlled trials. Nevertheless laparoscopic skills in emergency are widespread. The recommendations given with the consensus process might be a useful tool in the hands of surgeons.

Consensus conference on laparoscopic appendectomy: development of guidelines

AIM

Laparoscopic appendectomy (LA) is not yet unanimously considered the gold standard treatment for appendicitis, despite the increasing use of advanced laparoscopic operations and the high incidence of the disease.

METHOD

Due to the results of an audit which classified LA as widespread in Italy, a Consensus Conference was organized, in order to give evidence-based answers to the most debated problems regarding the operation. After researching the literature, a panel of 20 experts were selected and interviewed on hot topics; a subsequent discussion using the Delphi methodology was utilized in the course of the consensus conference and submitted to the evaluation of an audience of surgeons.

RESULTS

Checkpoint statements were formulated whenever an agreement was reached. A level of evidence was then assigned to single statements and the process revised by two external reviewers.

CONCLUSION

Consensus development guidelines are herein reported and regard diagnostic pathway, diagnostic laparoscopy, indications, behaviour in case of innocent appendix, technical aspects, learning curve; however, some questions remain unsolved due to the lack of evidence.

Diffusion of laparoscopic appendectomies in Italy: a national audit

A national audit focused on laparoscopic appendectomy was promoted by the Italian Association of Hospital Surgeons (ACOI). Four-hundred and sixty surgical practices received an e-mail questionnaire. Data concerning epidemiology, timetable, surgeon's age, selection of patients, laparotomic conversion, behaviour in the case of a normal appendix, and technical aspects were investigated. The response rate was 51.7%. The median number of appendectomies performed is 50-100 each year in a surgery ward. Laparoscopic operations are very common (93%), but mostly performed in less than 50% of the observed cases. There is no significant difference between the number of operations during the day vs. at night, and they are performed by a limited (<30%) group of surgeons, equally composed of physicians aged above and below 40. The majority of surgeons adopt an "all comers" policy regarding laparoscopic appendectomy, including selected older patients (>70 years old). There are no standard indications for conversion, while the behaviour in the presence of a normal appendix is generally removal. Even if laparoscopic appendectomy is not yet considered a gold standard, it is widely diffused in Italy, and the audit's data show different behaviours between subgroups.

Innovative techniques for the osteosynthesis of distal humeral fractures

Adequate restoration of the mechanical alignment, anatomic reduction of the articular surface, and stable fixation allowing early motion of the elbow joint are the primary goals in the treatment of distal humeral fractures. The purpose of our study is the comparison of the effectiveness between distal humeral locking compression plates (LCP) and conventional reconstruction and one third tubular plates. Between January 2008 and January 2009, 11 consecutive patients (4 men and 7 women) with distal humeral fractures were treated with plates in our hospital; eight patients were treated with LCP distal humeral plates and three cases were fixed with a combination of 1/3 tubular plates and reconstruction plates. They were all followed up for 12 months using the functional score of Cassebaum and radiologically with standard X-rays. Good to excellent results were obtained in 6/11 patients with a mean range of motion of 115°. At this small cohort of patients no significant differences between the two fixation methods was identified regarding clinical outcome, complications and function of the affected limb.

Adult stem cells: perspectives for therapeutic applications

The use of adult stem cells in tissue regeneration appears to be a powerful research tool, due to the intrinsic characteristics of these cells, i.e., self-renewal and unlimited capacity for proliferation. In particular, mesenchymal stem cells (MSCs) obtained from bone marrow or peripheral blood can be easily isolated, cultivated, propagated and can be differentiated into several specialized cell types thanks to their plasticity. Among these cells, MSCs can evolve into cardiac cell lineages. Since heart damage leads to the irreversible loss of cardiac function, cell transplantation could be a potential therapy for heart injury. Our laboratory has focused on the purification and expansion of rat and sheep MSCs, their differentiation into cardiomyocytes and their characterisation. Numerous results indicate that MSCs could be promising for therapy, however we need to better understand the biology of stem cells to improve methods for delivery and/or pharmacological activation. These techniques can indeed track engrafted cells and systems to guarantee their safe use.

Isolation, purification, and heterogeneity of human lymphatic endothelial cells from different tissues

Relatively few attempts have been made in the past to isolate and expand lymphatic endothelial cells (LECs). Recently this task has become feasible thanks to the identification of new lymphatic markers such as Podoplanin, Lyve-1, Prox-1 and D2-40. Using a two-step purification method based on the sorting of endothelial cells with Ulex Europaeus Agglutinin 1-coated beads followed by purification with monoclonal antibody D2-40, we were able to purify and in vitro expand human derived LECs from tissues such as lymph node, spleen, thymus, palatine tonsil and iliac lymphatic vessels. The isolated LECs were expanded on collagen type 1 and fibronectin coated flasks for up to 8-10 passages and then analyzed for phenotypic and functional properties. LECs were able to form a capillary like network, when seeded on Cultrex BME, indicating their capability to form lymphatic vessels in vitro. Comparative studies were performed, and we found that specific lymphatic and vascular markers were differentially expressed by LECs prepared from different sources, clearly demonstrating the phenotypic heterogeneity of LECs from different organs and different segments of the lymphatic vasculature. We here propose a new technique to make available ready sources of abundant well-characterized human LECs to examine normal profiles and behavior to compare with abnormal conditions.