The Clean Care Contest: promoting hand hygiene among healthcare and medical students

INTRODUCTION

Despite continuing efforts, compliance rates and knowledge of best practices in hand hygiene remain disappointing. Recognizing that conventional educational tools seem out of touch with young people and that the med and messages contents need refreshing, the Italian Study Group of Hospital Hygiene of the Italian Society of Hygiene, Preventive Medicine and Public Health devised a novel approach to promote the creation of innovative educational tools for improving knowledge of, and compliance with, hand hygiene rules among healthcare and medical students.

METHODS

A contest in creating educational material on hand hygiene practices involved university students of nursing and medicine, and of other healthcare degrees. Students from the universities of the GISIO network were invited to create educational material (e.g., videos, posters, presentations, leaflets, and screensavers) to be presented by May 5th 2019 during the World Hand Hygiene Day / Save Lives: Clean Your Hands Global Annual Initiative of the World Health Organization). A local and a national winners were awarded.

RESULTS

Three different local and national contests were performed during 2016, 2017 and 2018. During the three-year period, more than 270 educational tools have been developed: 130 (48%) were judged useful for hand hygiene promotion campaigns. The most frequent projects participating in the contests were videos (39%), posters (29%), leaflets (14%), and others (18%) submitted by more than 1,500 students of nursing (40%), medicine (31%), dentistry (7%), and of other healthcare courses in 14 universities. Products were evaluated by a local committee and, subsequently, local winners represented their University in a national contest.

CONCLUSIONS

The contest provided a framework for the creation of innovative and potentially effective educational tools via an engaging approach that leveraged student creativity. Given the need to improve compliance rates, this study suggests that new ways can be advantageously explored to teach hand hygiene procedures and increase awareness of the importance of their consistent use among healthcare and medical students.

Diagnostic and infection control strategies for Clostridioides difficile infections in a setting of high antimicrobial resistance prevalence

Clostridioides difficile (CD) is a major nosocomial pathogen and the leading cause of antibiotic-associated diarrhoea. In light of the strong association between antimicrobial use and CD infections (CDI), it may be hypothesised that areas at higher prevalence of antimicrobial resistance, like the region of Campania in southern Italy, could also have a higher rate of CDI. In this multicentre, region-based, prospective study, we analysed such issues, exploiting CDI incidence data collected from local hospitals. In 2016, the Italian National Centre for Disease Control supported a project involving three Italian regions: Friuli Venezia Giulia, Lazio and Campania. In Campania, a network of 49 hospitals willing to participate in the project was created. The project consisted of two phases: a survey on practice patterns concerning CDI and an epidemiological surveillance study. We identified a stringent need to improve awareness about CDI among the regional health-care community, as a widespread lack of surveillance programmes for CDI control was observed (existing in only 40% of participating facilities). Moreover, almost half of the participating hospitals (n=16, 43%) had no standardised procedures or protocols to control and prevent CDI. In the second phase of the study, we collected data of CDI cases during a six-month surveillance programme. In all, 87 CDI cases were observed, for a total of 903,334 patient bed-days and 122,988 admissions. According to the above data, CDI incidence was 0.96 cases/10000 patient bed-days, much lower than expected based on prior studies conducted elsewhere. The results of our study suggest CDI remains a rather neglected clinical issue in Campania. Despite a high burden of antimicrobial resistance and antimicrobial use in our geographic setting, we observed a very low incidence of CDI. Such a low incidence could be explained by underdiagnosis, but could also be related to actual diet, the lower patient age or the specific genetic background. However, further studies are warranted to either confirm or rebut the above hypotheses.

Knowledge, attitudes, and practices of General Practitioners from the Province of Parma (Northern Italy) towards vaccinations in adults ≥ 65 year-old

Backgrounds and aims: This study aims to characterize attitudes and knowledge towards immunization practice of people aged >65 years for seasonal influenza (SIV), pneumococcus (PNV), and Herpes zoster (ZV) in a sample of Italian general practitioners (GPs). Materials and Methods: During 10/2018, a structured questionnaire was emailed to 274 GPs operating in the Province of Parma, Italy. Association between willingness to perform aforementioned vaccines and individual factors was assessed through a multivariate regression analysis by calculating multivariate Odds Ratio (mOR). Results: A total of 73 GPs (26.6% of original sample) completed the questionnaire. Knowledge gaps were identified on the targeted vaccination rates for PNV and ZV (31.6% and 21.9% of correct answers), on the formulation of VZ (41.1%), and on the simultaneous immunization SIV/ZV (12.3%). The majority of respondents had high/very high trust on safety and efficacy of assessed vaccines. In multivariate analysis, recommending PNV was associated with having previously received SIV (mOR 5.44, 95%CI 1.08-27.31). In turn, ZV was negatively associated with a self-assessed knowledge gap (mOR 0.07, 95%CI 0.01-0.63). Discussion: Despite a generally favorable attitude towards vaccines, GPs exhibited knowledge gaps deserving appropriate intervention. However, lack of association between knowledge status and willingness to vaccinate enlighten the complex interplay between attitudes and personal behaviors. (www.actabiomedica.it)

[Day surgery: the role and training needs of nurses]

Medicine and health care are increasingly directed towards the achievement of high quality standards and of costs reduction. It is in this framework that same-day surgery finds its role, being able to satisfy both of the above needs. Despite its recognized benefits, in Italy this efficient model of hospitalization still meets several obstacles and the ratio of services provided in day hospital with respect to ordinary hospital admission is about 1 to 3. Day Surgery services depend on team work and the nurse's role is of utmost importance and responsibility since it involves both clinical care and managerial activities. Through a careful analysis of the skills required of a day surgery nurse, the authors discuss aspects of nurses' training in view of the pre- and post-graduate courses currently offered, including on-the-job training.

Quality improvement of medical records in a teaching hospital

INTRODUCTION

The aim of this study was to evaluate the quality of the MR compilation in some Operative Units of the "Azienda Ospedaliera Universitaria--II Università di Napoli" (AOU- SUN)-Italy, before and after an intervention of quality improvement, underlining the potential differences in the behaviour of different specialists (physicians vs. surgeons).

METHODS

Two random samples of 660 MRs were reviewed. A four-step program was developed: (1) first assessment of the MR; (2) implementation of the MR quality, sending a letter with the purpose of the study, the results obtained in the first step from that ward, the guidelines to correctly fill out the MR; (3) follow-up step four months later; (4) comparison of the data before and after the distribution of the guidelines using indicators of completeness of all sections of MR, clarity of handwriting and presence and clarity of signature.

RESULTS

The main concerns were related to the signature of the duty physician (present in 2.0% and legible in only 15.4%), the presence of the letter of discharge (18.0%) and the clarity of the days of hospital stay (32.0%). After the intervention the improvement of the quality of compilation was modest and regarded mainly medical rather than surgical wards.

DISCUSSION AND CONCLUSIONS

The improvement was not satisfying since from a medical and a legal point of view the indicators should reach 100% of clarity and completeness. A further study is being carried out to improve the involvement of health care professional, so that such requirements will be perceived as a common goal, not as mere bureaucratic initiatives.

[Economic impact of healthcare-associated infections]

Healthcare-associated infections are not only an important public health problem but also have a relevant socioeconomic impact. The overall estimated yearly costs vary between 3.5 billion euros in the United States to 1.3 billion euros in England. In Italy estimated costs are 2.5-5.0 billion euros/year with the cost of a single case ranging from 9,000 to 10,500 euros. The present study aimed to describe the type and distribution of hospital costs for healthcare-associated infections, the economic impact of prevention programs and models for cost effectiveness evaluation of prevention programs. A review of the existing published literature was conducted; studies were included in the review according to whether they had included a control group and to the number of subjects enrolled. Healthcare associated infections lead to increased direct, indirect and intangible costs. Most economic analyses that have been performed consider only direct costs, estimated by calculating the costs of extra days of admission. Surgical site and bloodstream infections were found to be the most costly types of infections, followed by lower respiratory tract and urinary tract infections. There was wide variation in costs between individual hospital departments and countries. Control and prevention strategies have been shown to be effective and efficient but should be evaluated within a specific local context. Prevention programs should therefore take into consideration the local situation.

[Quality of medical records in Naples (Italy) 2nd University School of Medicine]

To evaluate and improve the quality of medical-record keeping, in clinics and surgery departments. The evaluation involved 66 Operative Units (O.U.) of the "2nd University Hospital" in Naples (Italy). 10 medical records for each O.U. were randomly selected, for a total of 660. The quality was evaluated in all sections of medical records using the criteria of completeness, clarity and traceability of the data. The most critical issues are: unclear handwriting in almost all sections, in the whole scarse presence of a discharge letter (17.0%) in surgery (1.4%), almost total absence of the physicians signature in the clinical diary (2.3%). The completeness of medical records (presence of patient's history, physical examination, informed consent) is significantly higher in the surgery departments. The medical records are significantly righter in the clinic departments. In general, a poor quality of medical-record keeping was detected. This indicates the need to improve the quality by involving the staff in the importance of correct compilation.

[Epidemiology of breast cancer in a local health organisation of Naples (Italy), 1995-2003]

A database was created by the authors to collect data on breast cancer epidemiology in a local health organisation of Naples. Data on women residing in the territory of the local health organisation and who had received a diagnosis of breast cancer, based on clinical, radiological, and pathology criteria, between 1 January 1995 and 31 December 2003, was collected through linkage of various data sources. Overall, 475 new cases were identified in women aged over 34 years at diagnosis. Though yearly raw incidence rates show an increasing trend, this was not confirmed by subsequent analysis of standardized rates. The age-specific incidence curve depicts a sharp increase from ages 30 to 50-54 years and a slower rise after the menopause, analogously to what has been shown for Europe. Standardised morbidity rates in the examined period (1996-2003) are lower than those detected by the pool of Italian tumour registries (Italian Association of Tumor Registries - AIRT) but similar to those observed by the two Campania regional tumour registries. Standardised mortality rates were found to be similar to those observed by the AIRT Pool and by the two regional registries. Age-specific mortality rates indicate three levels of risk: low-risk below 39 years of age, intermediate risk between 40-59 years of age and high risk = 60 years.

[Data quality of a breast cancer database in Naples, Italy. Do the necessary conditions exist for implementing a disease registry?]

Data quality is one of the fundamental aspects of health information systems and is influenced both by the type and accuracy of the data sources used. The aim of this study was to assess the quality of data in a breast cancer database held by a local health authority in Naples (Italy) and to evaluate the possibility of implementing a disease registry. The database collects information from different sources and was evaluated in terms of completeness, accuracy and comparability. Data linkage of all district data sources was performed; these included medical charts of the Integrated Territorial Oncology Service (SOTI), hospital discharge abstract forms, disability registry, list of subjects affected by specific disorders and therefore entitled to exemption from healthcare costs related to their disease, and the Nominal Registry of Causes of Death (ReNCaM). From 1 January 1995 to 31 December 2003, 475 incident cases of breast cancer were identified; 313 (65.9%) of which through the Integrated Territorial Oncology Service, and 71 (14,9%) through discharge abstract records, while only 3.6%, 4.0% and 11.6%, respectively, through the disability registry, lists of subjects with healthcare costs exemptions, and the ReNCaM. Medical charts of the Oncology Service were found to be the most complete data source for demographic information, hospital name, staging and treatments given, histologic diagnosis, and for most risk factors. By linking 178 patients registered both in the discharge abstract forms and in the Oncology medical charts, discordant demographic data, name of hospital, and date of diagnosis were found respectively in 7.3%, 16.3%, and 42.1% of cases. Overall the quality of data was found to be good and comparable to other registries. However the database cannot yet be considered as a disease registry in view of the small geographical area involved and the lack of continuous and systematic data flow; the latter can be provided only by facilities with sufficient economic resources and personnel specifically assigned to the task.

[Evaluation of the effectiveness of a nutrition education intervention performed by primary school teachers]

This study values the effectiveness of nutrition education interventions carried out by teachers with active didactic methodologies. The research was carried out by administering a frequency of food intake questionnaire, before and after the intervention. To compare the answers given before and after the educational intervention the Wilcoxon-test was applied to dependent data. Our research confirmed that a substantial percentage of children do not show a correct nutrition and therefore nutrition education interventions are opportune and necessary. In the group with "insufficient execution" particular variations are not taken place. In the group with "sufficient execution" increase the number of subjects having breakfast, particularly with milk and biscuits, and decrease the snakes intake. Moreover there is a general decrease of intake food as meat, fish, vegetables, salami and legumes. So this educational intervention seems to have only partial effectiveness.

[Management of patients with cerebral stroke in Molise (Italy): MO.STRO (MOlise STROke).]

Acute stroke patients in the Molise region (Italy) are generally admitted to an Internal Medicine or Geriatrics hospital ward. In this study all 446 acute stroke admissions which occurred in Molise in 2004 were evaluated by analysing the following data: time from symptom onset to admission, diagnosis, acute care treatment, comorbidities, disease severity, complications, disability level, mortality, discharge modality and adherence to current guidelines. Mortality was very low in the study population (approximately 8% vs. 15-17% for the rest of Italy) and was found to be related to age above 80 years, disease severity, presence of dysphagia and to being admitted to the hospital of Campobasso (a sub-analysis of this population showed an equal degree of risk in the Geriatrics and Internal Medicine Units). Forty-two percent of survivors had a moderately severe to severe level of disability (Rankin score 4-5) and went home immediately after discharge (with a major part of the burden of care resting on families). At all study hospitals, computed tomography scan was performed within 48 hours of symptom onset, as per current guidelines for the management of acute stroke. On the other hand, adherence to current guidelines regarding other components of management such as evaluation for dysphagia, placement of a urinary catheter, aspirin therapy, rehabilitation, and performance of diagnostic procedures (e.g. doppler, echocardiogram) was not uniform in all study hospitals. Several aspects of stroke management should certainly be improved, in accordance with current international guidelines, in order to provide optimal acute stroke care in the Molise region. These include: time to hospital admission (e.g. by improving the emergency service "118"), standard treatment and diagnostic procedures, physical rehabilitation services and involvement of family physicians.

Investigating on a foodborne outbreak: analysis of the critical points

The Authors describe an epidemiological survey performed after a cluster of cases of foodborne infection involving several participants at a wedding reception. The aim was to identify the food, the responsible pathogen and any shortcomings in the coordination between the various services and the territorial operating units involved in the outbreak investigation. The investigation involved 149 participants; fifty seven persons (38.3%) had a foodborne illness. The only food item that remained associated with illness after multiple regression analysis was the ricotta cheese (RR 3.58, I.C. 1.,72-7.48 ). The finding of B. cereus in samples of ricotta cheese collected at the dairy food supplier indicate its responsibility for the outbreak but diagnostic certainty could not be achieved as no leftovers were available. Thus, shortcomings in this epidemiological investigation are constituted by: delayed notification, which prevented the acquisition of food samples, lack of a reference laboratory and lack of a specific diagnostic protocols, which prevented the microbiological research for the rapid identification of new pathogens incriminated in foodborne diseases. Finally, environmental and sanitary inspections showed deficiencies in the hygienic measures of food storage, particularly regarding refrigeration and in the HACCP plan that was not properly implemented.

[Reasons for turning to healthcare services outside of own area of residence: a study among patients of the AV1 Local Health Unit in Italy]

In this study, 552 patients from the AV-1 Local Health Unit, who accessed healthcare services outside of their own area or region of residence ("intra- and extra-regional mobility") were interviewed by their general practitioner. The aim was to describe the healthcare "mobility" phenomenon and the reasons patient resort to it. Most cases involve patients who turn to healthcare services outside their local area but within their own region of residence (intraregional mobility). On the other hand cases that involved "extraregional mobility", that is involved patients who accessed healthcare services outside their own region of residence , occurred in Basilicata, Puglia, Emilia Romagna and Lombardia. Reasons given by patients for this choice are, in order of importance: prestige of a specific hospital or hospital department, trusted physician working in a given hospital, disease severity, specialist advice, reduced waiting times, friends' or relatives' suggestions, better hospital services, lack of trust in healthcare services provided locally, advice given by general practitioner.

[Biological risk in the operating room: microbiological monitoring of the environment and analysis of the associated variables]

The authors present an environmental microbiological monitoring programme carried out over a period of 15 months in 16 operating theatres performing specific types of surgery. The levels of microbial contamination of the air and of four of the most representative surfaces of the clean area were determined at 3 different times for each theatre, both before and during surgery. For the air assessment, the results obtained with three different samplers, Sed-3 Unit, SAS and RCS, were compared. The results were on the whole acceptable, but some poor conditions were detected during the theatres in use, especially in general surgery theatres; in some of these the floors showed levels of contamination consistently exceeding the reference limits. As the monitoring programme proceeded, the microbiological quality of the air and of the surfaces in the theatres notably improved. The three air samplers showed different conditions expressed with units of measure not always readily comparable. For active samplers, the bacterial load determined by RCS, although less variable, were always higher (even 2-3 fold) than those obtained with the SAS. Passive sampling takes longer but determines the real risk of infection for the patients; contemporary determination of the fall-out and the CFU/m3 helps to identify the occupational risks. Since the limit values established by the ISPESL guidelines for the operating theatres have been defined only for active samplers, there is urgent need for more exhaustive national guidelines to define similar values also for passive sampling. The Authors conclude stressing the importance of promoting continuing information-education programmes to heighten the awareness of all those involved in operating theatre activities.

[Sexually transmitted diseases: a public health issue]

Sexually Transmitted Diseases (STDs) are a main problem in the public health policy. The importance of these diseases is not only limited to their high incidence but also to the complications they may cause and to their role in the HIV transmission. Control of STDs represents one of the main aims of the World Health Organization. For many years STDs were thought to have been almost completely eliminated; instead, recently the rates of STDs are increasing. This has prompted the search for control strategies, that, however, have shown to be difficult to implement. For this reason, prevention programs based on promotion of responsible sexual behaviour, early diagnosis and treatment, and reduction of infectiousness, have been implemented in many countries.

[Pilot prevalence study about nosocomial infections at the polyclinic of the naples university]

381 patients from the Naples Polyclinic - University II were submitted to a pilot study aimed at detecting the prevalence rate of hospital infections. The period examined ranges from January 1999 to January 2000 and the whole survey was aimed at detecting the extent of such infections so as to foster an infection-control system. Data have shown a 6.8% prevalence rate, with a higher risk of infection for surgical patients and those undergoing invasive procedures.

[Epidemiology of Cesarean section and birth surveillance]

The authors studied the incidence and the determinants of cesarean section in ASL Naples 4. In addition while they analysed the reliability and completeness of birth certificates in order to verify their accuracy for statistical and epidemiological purposes. The results show an increase of cesarean section higher than national mean (from 1997 to 2000: 44.5-54.9%), rarely justified by real risk conditions. 41.1% of vertex deliveries required cesarean section. The most frequent indications were repeated cesarean section (40.6%) and fetal problems (39.3%) in the multiparous; fetal dystocia (27.8%) and fetal distress (17.1%) in the primiparous. The quality of the compilation of the certificates was unsatisfactory for completeness and reliability. Indeed, 14.9% of 1997 birth certificates and more than 70% in the following years did not reach the epidemiological services of ASL; moreover, the comparison with clinical records proved that 46.9% of presentations resulted abnormal on clinical records were vertex on the birth certificates.

[Malaria: an Issue of Public Health]

The Authors have analyzed the epidemiological situation in Italy as regards malarial infections during the years 1960-1999. They paid special attention to the risk of malaria importation connected with an increased number of intercontinental journeys. The possibility of its reintroduction was assessed through the analysis of environmental and climatic factors on the Anopheles populations still living on our territory. Other infectious factors have also been analyzed (e. g. blood-transfusion). The authors suggest potential strategies for individual and environmental prevention and stress the need for better information activities.

Evaluation of benzene exposure in children living in Campania (Italy) by urinary trans,trans-muconic acid assay

The urinary benzene metabolite trans,trans-muconic acid (MA) was determined in 144 children living in Campania (Italy): 92 from Naples (1,300,000 inhabitants), designated as an urban source, and compared to 52 from Pollica (300 inhabitants), considered a rural, background exposure for benzene. The children participating in the study were tested by an anonymous questionnaire about the possible sources of exposure to benzene. Quantifiable levels of MA were found in 63% of the urine samples analyzed. Setting the value of nondetectable urinary samples at 7 microg/L MA, a value that is one-half of the instrument detection limit of 14 microg/L, the mean urinary concentration levels were 98.7+/-81.0 microg/L and 48.4+/-71.7 microg/L in Naples and Pollica, respectively; adjustment of these values to creatinine clearance resulted in MA levels of 141.2+/-145.4 microg/L in Naples and 109.8+/-133.2 microg/L in Pollica. Passive smoke exposure did not significantly affect urinary MA levels, but proximity of the home to traffic increased urine MA content. Data show that MA can be utilized as a biomarker for exposure; however, a clear-cut association to benzene requires personal monitoring and control of dietary sorbic acid.

Appropriateness of admission and hospitalization days in a specialist hospital

The assessment of hospital utilization is an important tool in the management of Hospital Health Care. The Authors examined the extent and the reasons of inappropriate hospital admission and stay in patients admitted to the Monaldi Hospital, Naples, Italy. Five hundred and thirty three medical records, were analysed. The survey was carried out in the period May-October 1999, using the italian version of the Appropriateness Evaluation Protocol (AEP) method. Of the admissions days, 15.8% were considered inappropriate; the most frequent cause of inappropriateness was waiting period for diagnostic test. The highest percentage of inappropriateness was found for females, for less serious pathologies and in the summer months. Compared to the admissions, the proportion of inappropriateness of the index days was higher (35.5%); the most frequent cause of an inappropriate day of stay was the persistence of mild symptoms which according to the attending physician justified prolonging the stay, while the same variables found for inappropriate admission (female sex, less serious pathologies and summer months) were related to inappropriateness of stay. This survey has allowed us to offer some useful suggestions with a view to making some of the activities of the "Monaldi Hospital" more efficient.

Prevalence of asthma among young men in a military recruitment office of South Italy

The prevalence of asthma was studied in 3065 male 18 year-olds, examined in a southern Italy (Basilicata) military recruitment office. The disease was evaluated by questionnaires, pulmonary function tests and specialist diagnosis. The point prevalence of asthma was 1.4%. The disturbance was more frequent in high versus a low level of maternal education (OR: 3.70; 95% CI: 2.00-6.88), in high versus a low level of paternal education (OR: 2.71; 95% CI: 1.48-4.98), in urban residence versus rural residence (OR: 3.04; 95% CI: 1.61-5.75), in first-borns versus nonfirst-borns (OR: 2.46; 95% CI: 1.33-4.53). Home environment (dampness, heating, crowding) was not significantly correlated to asthma. This reported prevalence of asthma is low, compared with overall European and Italian data. The higher risk in urban areas and high level of education has been confirmed. The association between asthma and first-borns is interesting and needs further investigation, focusing on maternal issues like the low maternal age and the mother-child interaction.

Ill-defined and multiple causes on death certificates--a study of misclassification in mortality statistics

Biases can distort, limit or inhibit the value of mortality data as an epidemiological re source. From 9500 deaths occurring in Naples (Italy during 1994, a random sample of 372 death certificates reporting ill-defined causes and multiple causes of death was extracted. The code for the underlying cause on the death certificate (assigned code) was compared with the cause reattributed with the aid of interview of the certifying physician or clinical records (modified code). The aim was to investigate the extent of misclassification of 'underlying cause' in deaths attributed to ill-defined and/or multiple causes and the shortcomings in the ICD-IX. Ill-defined underlying causes of death (7.0% of death certificates) were cardiovascular diseases, tumours with no specified site or nature, symptoms, signs, ill-defined conditions and senility. There was disagreement between the initially assigned code and the modified code in 53.8% of ill-defined underlying causes; discordance was high for the certificates filled in by the family physician. Multiple causes of death were observed in 23.6% of certificates; of these 59.2% concerned subjects aged 75 years and over at death. Diabetes was always listed in association with other pathologies but neoplasms and traumas were generally listed alone. Disagreement between codes occurred in 48 (54.5%) certificates indicating multiple causes. In 10 of them, death was established as due to a concurrence of causes. As regards ill-defined causes of death, the authors concluded that specific training on certifying procedures would be insufficient on their own; the physician should be made aware that certification is a fundamental requirement for building up epidemiological data. Evidence-based educational interventions are needed. As regards multiple causes of death, multicausal analysis may be indicated for deaths due to a concurrence of causes.

[Endomyocardial biopsy in heart transplantation: the experience of the Naples Center]

From January 1988 through August 1992, 38 cardiac transplants were performed. 385 endomyocardial biopsies (EMBs) from 32 cardiac allograft recipients were investigated. In 21 (5.45%) EMBs the specimens were inadequate for the diagnosis. In the remaining 364 EMBs the grades of acute rejection were: minimal in 213 (58.51%) EMBs, mild in 132 (36.26%), mild/moderate in 12 (3.3%) and moderate in 7 (1.93%). The most reliable histologic feature of acute rejection was the myocyte necrosis or damage in presence of pironinophilic mononuclear cell infiltrate, so our therapeutic protocol requires myocyte damage to perform an additional treatment, which was performed in 7 cases (1.93%). An intermediate grade mild/moderate, was introduced to classify the EMBs in which the myocyte necrosis was scant or not clear. In these patients another EMB was performed after 3 or 5 days. One patient died of chronic rejection 17 months after the transplant. Changes not related to acute rejection were: ischemic early or late necrosis; changes related to previous biopsy site; subendocardial infiltrate of mononuclear cells (Quilty's alteration); focal, diffuse or perimyocytic fibrosis and artefacts as contraction bands; nuclear or cytoplasmic vacuolar alterations. Some of these changes occasionally made the diagnosis hard or the specimens inadequate for the diagnosis. In spite of these diagnostic difficulties, the EMB is a safe and reliable invasive investigation which plays an important role in the management of rejection in cardiac allograft recipients.