1 Hematology Unit, Azienda USL-IRCCS Reggio Emilia, Viale Risorgimento 80, 42123 Reggio Emilia, Italy.
2 Department of Molecular Medicine and Medical Biotechnology, University Federico II of Naples, via S. Pansini 80131 Naples, Italy.
3 Department of Experimental, Diagnostic and Specialty Medicine, S. Orsola-Malpighi Hospital, University of Bologna, via G. Massarenti 9, 40138 Bologna, Italy.
4 Heamatology, Department of Precision and Translational Medicine, Sapienza University, piazzale A. Moro 5, 00185 Rome, Italy.
5 Hematology Division, AO S. Croce e Carle, via M. Coppino 26, 12100 Cuneo, Italy.
6 Hematology and Hematopoietic Stem Cell Transplantation Centre, Federico II University Hospital of Naples, via Pansini 80131 Naples, Italy.
7 Hemato-Oncology Unit, Istituto Oncologico della Svizzera Italiana (IOSI), via A. Gallino 12, 6500 Bellinzona, Switzerland.
Received: September 21, 2020
Accepted: December 11, 2020
Mediterr J Hematol Infect Dis 2021, 13(1): e2021011 DOI 10.4084/MJHID.2021.011
| This is an Open Access article distributed
under the terms of the Creative Commons Attribution License
(https://creativecommons.org/licenses/by-nc/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Italy has been one of the first European countries hit by the COVID-19
pandemic, with many patients dying from severe respiratory issues,
especially frail subjects. Hematology patients are generally thought to
be at high risk of developing severe COVID-19-associated complications.
The aim of this work was to describe the infection control measures
adopted in Italian hematology settings to protect patients and
In Italy, the number of COVID-19 cases began to increase exponentially in the second half of February 2020. However; it has been hypothesized that the virus was already circulating in the population in late January.
Over the weeks following the initial outbreak, clusters of SARS-CoV-2 infection began to appear in Northern Italy, and many people developed life-threatening conditions that required admission to an intensive care unit (ICU). Despite several actions undertaken by the Italian health authorities, a rapid spread of the virus was observed throughout March, leading the Italian Government to issue strict containment measures to limit individuals' free circulation throughout the country.[9,10,11,12] Considering the number of infected cases and the mortality rate, Italy was initially one of the worst-hit countries in Europe.
Initially, COVID-19 mortality, expressed as fatality rate (FR), was higher in Italy than in other European countries and in China due to various factors, such as demographic aging, screening, and testing strategies, and the definition of death adopted. Examining the cohort of patients who died before March 30, 2020, a higher prevalence was observed in people over age 70 years (FR = 23.8%) and in males (FR 13.3% vs. 7.4%). The presence of comorbidities appears to be associated with mortality, especially among older patients, as documented by previous publications.[15,16,17]
Although there are few and controversial data on COVID-19 patients with malignant hematological conditions,[18,19] it is reasonable to consider them at a high risk of death because they are immunocompromised.[20,21,22,23,24] The Italian Society of Hematology (SIE) and the Italian Group for Bone and Marrow Transplantation (GITMO), the Italian Bone Marrow Donor Registry (IBMDR), the Italian Blood Center (CNS), and the National Italian Transplant Center (CNT) have all published several suggestions and recommendations[25,26,27,28] on how to manage hematological patients in different settings.
However, the practical application of those suggestions and recommendations may have fallen short due to the still limited knowledge of the virus's transmission mechanisms,[29,30] the lack of reliable screening tests and strategies,[15,16] and the high speed of contagion. Hospital departments and wards had very little time to put emergency measures in place to contain the spread of infection. A proactive approach adopting strict isolation precautions as well as surveillance and control strategies appeared to be the best method to prevent the spread of the virus, thereby protecting and ensuring hematology patients' safety.[32,33]
This paper describes the main organizational and contextual issues in Italian hematology units and how they have protected their patients and staff during the COVID-19 pandemic.
The aims of the survey were: a) to explore real-life practices for containing the spread of SARS-CoV-2 in hematology settings; b) to analyze significant differences according to each center's location (Northern, Central, Southern Italy) and patient age (adult, pediatric); c) to investigate nurses' opinions on how well his/ her local health authority managed the crisis.
Materials and Methods
Hematology nurses involved in our group's various activities were invited to participate via email and were provided with a link to the online survey. Participation was voluntary, and consent was assumed upon completion of the questionnaire. Data were collected anonymously. Given the exploratory objectives of the survey, only one questionnaire per center was required.
The questionnaire was developed by the multidisciplinary NCH team composed of hematology nurses, physicians, and research methodologists, who took into account the suggestions provided in the available literature and focused on the major areas of interest for practice. The questionnaire was tested for clarity and comprehension in 8 centers before the formal start of the study.
The nurse survey consisted of 39 items: 5 investigating details of the hematology center, the remaining 34 covering general information (organization, local epidemiology), infection control measures adopted, patient and Health Care Professionals (HCPs) protection (COVID-19 testing strategies, safety behaviors, etc.), information management, and nurses' perception of infection control management (evaluated with a 10-point Likert scale).
Statistical analysis. The adopted strategy for data analysis was based on the epidemiology items, i.e., the spread of infection throughout the geographical areas (Northern, Central, Southern Italy) and the variable incidence in different age groups (Adult, Pediatric). Clustering analysis was done to explore any behavioural differences due to the virus' spread characteristics and / or timing and the different regional health care organizational systems.
The statistical analysis was performed by Matlab statistical toolbox version 2008 (MathWorks, Natick, MA, USA) for Windows at 32 bites, on a sample of 44 different centers.
Data are presented as numbers and percentages for categorical variables, and continuous data are expressed as the mean ± standard deviation (SD) unless otherwise specified. The chi-square test and Fisher's exact test were performed to evaluate significant differences in proportions or percentages between groups. A binomial test was performed to compare two mutually exclusive proportions or percentages. The multiple comparison chi-square test was used to define significant differences between percentages for unpaired data; if the chi-square test was positive (p-value less than 0.05), then post-hoc with Z-test was performed to locate the highest or lowest significant presence. Multiple comparison Cochran's Q tests were used to compare the differences between percentages for paired data, considering the null hypothesis that there were no differences between the variables or modalities. When the Cochran's Q test was positive (p<0.05), a minimum required difference for a significant difference between two proportions was calculated using the minimum required differences method with Bonferroni p-value corrected for multiple comparisons. One-way ANOVA test was used in multiple comparisons between means; a post-hoc Scheffe test for pairwise comparison of subgroups was performed. The Kolmogorov-Smirnov test was conducted to test normal distribution, with Lilliefors significance correction. When the one-way ANOVA was not adapted (non-normality), the Kruskal-Wallis test was performed to compare three or more independent samples; if the Kruskal-Wallis test was significant (p-value < 0.05), the post-hoc Dunn test for pairwise comparison of subgroups was performed. The Mann-Whitney test, the alternative to the independent samples t-test when the samples' distribution is non-normal, was used to test the significance of the difference between two independent samples. All tests with p-value (p) <0.05 were considered significant.
Thirty-one centers (70.4%) provide care to adult patients, 7 (15.9%) to pediatric patients, and 6 (13.6%) to both pediatric and adult patients. Only two adult centers (1 in the North and 1 in the South) did not perform stem cell transplants.
As is known, the SARS-CoV-2 virus has spread throughout Italy, starting from the North to the South, with different characteristics of severity. Furthermore, the incidence and severity of clinical manifestations in adult and pediatric patients appear to differ.[39,40] We performed our analysis assuming differences in patient protection strategies by geographic area and patient age.
First, three groups corresponding to the three macro areas of Italy (North, Central, and South and Islands) were considered. Table 1 summarizes the survey items, answer frequencies, and univariate and multivariate analyses both in and between groups of each item. The participating centers were then grouped as follows: adult patients (AP) centers, pediatric centers, and those who treat both adults and pediatrics (PAP). Results are shown in Table 2 (Supplementary materials).
|Table 1. Geographic areas: univariate and multivariate analyses in and between subgroups.|
General information. Almost all the participating hematology centers (Table 3 supplementary materials) were located in hospitals with a dedicated COVID-19 ward (96.1%, 100%, and 83.3% in NIT, CIT, SITI, respectively). Hematology patients positive to SARS-CoV-2 were generally admitted in these wards (90.9%), with no differences between groups. Many hospitals organized COVID-19 pre-triage pathways (77.3%) performed by physicians and/or nurses in order to filter patients' access at hospital gates. These pre-triage pathways were less present in NIT (65.4%) than in CIT (100%) and SITI (91.7%), although the differences were not statistically significant (p=0.072). Body temperature, respiratory frequency, and oxygen saturation measurements, and rapid diagnostic tests for COVID-19 were included in these pathways.
Infection control measures. The number of beds was reduced in 22.7% of hematology centers, with no statistically significant difference between groups. Three centers stopped stem cell transplant activity.
The proportion of hematology wards who have had COVID-19-positive patients differed between geographic groups (46.2% in NIT vs. 83.3% in CIT vs. 16.7% in SITI centers); PAP centers with COVID-19-positive cases were significantly more (p = 0.0239). In addition, CIT had a higher percentage of centers reporting patients with COVID-19 clinical signs or symptoms (83.3%; p=0.0118) without laboratory confirmation.
Almost all centers (93.2%) performed swab tests before patient admission: the day before admission in 43.2% of centers, more frequently in NIT and CIT centers (53.8% and 66.7%, respectively), less frequently in SITI centers (8.3%, p = 0.0377). Both AP and PAP centers performed swabs the day before admission (41.9% and 46.2%), or, less frequently, some days before (35.4% and 15.4%). The test results were available within 12 hours (45.5%) or between 12 to 24 hours (45.5%) or after 24 hours (9.0%). Protective measures were locally adopted: limiting access to the hematology wards (100%), not allowing visitors in 65.9% of centers (especially but not significantly in NIT centers, p = 0.10). CIT centers preferred to allow visitors based on the patient's clinical condition (66.7%), differing significantly from the other geographic areas (p = 0.0395). COVID-19 testing was performed on HCPs in 79.5% of centers, most commonly with both nasopharyngeal swab and blood tests (47.7%); tests were repeated routinely in 68.2% of centers. There were no statistical differences by geographical area or type of patient assisted.
Patient and health care professional protection. Personal protective equipment (PPEs) are routinely used in the hematology setting during patient care. Surgical masks (86.4%), TNT gowns (36.4%), and safety glasses (25.0%) were the first choices. HCPs wore masks at all times, whether during patient care or not (95.5%), especially in NIT (100%) and CIT (100%) than SITI centers (83.3%; p = 0.06); masks were changed at every shift, especially in SITI centers (66.7%, p = 0.0162), while they were more frequently changed according to manufacturer's instructions in NIT centers (57.7%), without any significant differences (p = 0.06).
A shortage of PPEs during the initial phase of the COVID-19 pandemic in Italy was observed: 45.5% of centers reported a lack of masks, while 43.2% reported there was no problem with PPE availability (gowns, visors, safety glasses, gloves, etc.). There were no differences between groups except for lack of gloves in AP centers than the PAP ones (p = 0.0239).
Regarding infected HCPs, there was a significant difference among the three geographic areas (p = 0.0380). In particular, Northern and Central Italy had more centers with diagnosed cases among HCPs (57.7% and 66.7%, respectively); home isolation (varying from 10 days to 5-6 weeks) and various strategies of readmission to work (after 1 to 3 negative swab tests, or after symptom resolution, without a test) were adopted. Swab test negativity was required before work readmission in 93.2% of centers. The management of patients and HCPs who had contact with COVID-19-positive individuals was based on alerting the competent authorities and performing diagnostic tests (56.8%). However, in 38.6% of centers, this issue was not managed or not specified/unknown. In Northern Italy, management's first choice was performing a diagnostic test (46.2%; p = 0.0003). Other infection control strategies were reported; for example, limiting access to the work environment (e.g., no more than 2 HCPs in a patient room if not needed) was adopted by 61.4% of centers, and 25.0% provided only safety distance norms.
Information management. All centers referred to the official instructions or recommendations for situation management provided by their local institutions (hospital/department directives); only one center in the CIT group reported a delay in receiving any instructions. These recommendations mainly concerned “patient management” (100%), “access management” (92.3%, 83.3%, and 100% in NIT, CIT, and SITI, respectively), “PPE management” (100% in NIT and CIT, 83.3% SITI), and “infection protection of HCPs” (88.5%, 50.0%, 66.7%, respectively). Instructions for patients and families aimed at preventing the spread of the virus were provided by local health authorities, mainly in NIT (73.1%), but with no significant differences between the three areas. Hematology units provided specific recommendations for hematology patients and their relatives in 61.6% of NIT centers and in 33.3% of both CIT and SITI centers.
A significant difference was seen in the modality of providing updated information. The majority of centers provided updated information in real-time through the official institutional email service (80.8%, 83.3%, and 66.7% in NIT, CIT, and SITI, respectively) and the local hospital intranet (92.3%, 50.0%, and 50.0%), especially in NIT centers (p = 0.0062). Information transmission by word of mouth was significantly adopted in CIT centers (p = 0.0195).
Nurses' perception. Responders' subjective opinion on PPE availability, patient protection, HCP protection, and communication quality was generally better in NIT centers than in CIT and SITI centers. However, there were no significant differences between groups.
However, differences in specific issues and some critical aspects emerged. There were fewer hematology centers with COVID-19-positive patients in Southern regions, in accordance with the lower incidence of the infection. CIT centers reported higher percentages of COVID-19-positive patients, but the low number of collected answers from this area is likely to be a confounding factor. Considering the virus' aggressiveness, hematology patients' immunocompromised status, and the severity of the pandemic, especially in Northern Italy, the number of hematology centers with no SARS-CoV-2-positive patients suggest that safety procedures were applied and adhered to. Fewer pre-triage zones were organized in the NIT hospitals than in the other geographic groups. However, this did not seem to affect the infection's spread, probably due to other strategies adopted such as remote working or screening procedures. In addition, at the time this survey was conducted, the severity of the pandemic in the Northern regions may have delayed the implementation of some containment measures.
Patients admitted to hematology wards were tested before or at admission and were considered infected and thus isolated until test results were available, as required by the SIE/GITMO and EBMT recommendations;[24,25] almost all centers were in line with the recommendations. However, in this context, a laboratory response time of more than 12 hours for swab tests does not appear appropriate.
Different strategies were adopted regarding the management of infected HCPs and their contacts. Rapid identification and isolation of infected subjects as well as contact tracing appear to be crucial,[42,43,44] although there are still some unresolved issues, such as the management of the return to work of previously infected HCPs. The timing of viral shedding after symptom onset in infected subjects appears variable and likely depends on many factors, including the host's immunological features, the severity of illness, and viral load.[45,46] A limited number of centers based on their approach to patient and HCP safety on a time frame only, reporting that COVID-19 positive HCPs returned to work without performing any further tests. This approach appeared incautious, given what has been stated above and the variability in readmission timing as reported by the centers in this survey.
Significant difficulties were registered in managing both patients and HCPs who have had contact with COVID-19-positive patients or HCPs. Tracing and managing contacts should be considered one of the critical measures to contain the spread of SARS-CoV-2 infection.[43,44] Our results showed that screening tests were performed in just over a third of hematology centers on this population of contacts and that compliance with alerting the competent authorities of these exposed contacts was scarce.
The lack of PPEs, including face masks and gloves, was reported in the survey. The lockdown measures adopted affected the circulation of materials and commerce, resulting in supply problems. International guidelines have recommended both extensive adoption of at least standard precautions and optimizing the use of PPEs in order to ensure their availability;[43,44,47] strategies to make more efficient use of PPEs may have been perceived as a lack of them, especially by HCPs working in hematology settings, where PPEs are commonly used.
HCPs in almost all hospitals were provided with recommendations and directives on patient management, visitor access, PPEs, and infection prevention and control among workers. However, specific recommendations for hematology patients and their families on preventing the spread of the virus and aimed to reduce misinformation exposure  were less frequently available. As hematology HCPs apply infection control measures in their daily practice, this may have allowed them to contain the spread of the virus in their setting more effectively. The strategies described by almost all centers, such as the maximum length of time a mask could be worn, the surgical masks as the first choice, and applying strict measures to limit environmental contact between HCPs, may be considered a reasonable translation of recommended measures into practice.
Our study has some limitations. As the sample represents just over half of the invited centers, the results cannot, therefore, be said to represent all hematology centers in Italy. Some specific issues, such as HCPs exposure without PPEs, home isolation follow-up practices, environmental hygiene practices, and waste management, were not investigated. The survey provided insight into practices put in place during the acute phase of the COVID-19 pandemic (lockdown), and qualitative feedback assessed issues felt to be pertinent to nursing. However, this research methodology does not provide an in-depth understanding of these issues. Qualitative research could be conducted to complement this investigation. However, substantial compliance of Italian hematology centers with National health authorities' recommendations and Government laws to control the spread of SARS-CoV-2 was observed, and hematology HCPs' skills in infection control may have contributed to having many COVID-19-free hematology centers. Our data do not allow us to evaluate the impact of acted measures on patients' outcomes or on the epidemic.[48,49] However, they could provide gained information on what occurred in our hematology ward during the COVID-19 pandemic, such as activities limitation, variability in swab practices, reduced PPEs availability as well as outpatients, visitors, and contacts management. Our findings could be useful to face a better further round of infection.
Special thanks to the Italian hematology centers colleagues who voluntarily participated in this survey and for their dedication to patients care.
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|Table 2. Type of patients cared: univariate and multivariate analyses in and between subgroups.|
|Table 3. List of responding centers|