1. Introduction
Stroke poses a significant healthcare burden due to morbidity, disability, and mortality [
1,
2,
3]. Modern intra-arterial therapies of ischemic stroke such as thrombolysis and thrombectomy have a narrow optimal therapeutic window, beyond which clinical outcomes deteriorate [
4,
5]. Therefore, timely recognition and management of patients suffering a stroke is vital, since it renders more patients as suitable candidates for such therapies.
Stroke detection education involves training healthcare professionals, spanning undergraduate, postgraduate, and ongoing professional development. Two programs, an online initiative by Angels’ Initiatives and Advanced Stroke Life Support (ASLS) Course, offer continual stroke education [
6,
7]. Guidelines on stroke diagnosis and management are regularly updated [
5,
8,
9]. It is, however, a matter of ongoing research whether healthcare professionals (HCPs) involved in stroke care have up-to-date knowledge on this subject. Substantial research has been dedicated to pre-hospital stroke care, spanning from the assessment of knowledge [
10,
11] to the development of triage techniques [
12] and targeted educational interventions for improving knowledge and optimizing stroke recognition. Another critical aspect is the fast transfer to dedicated stroke centers [
13,
14,
15].
Equally pivotal is the timely admission of stroke patients to the Emergency Department (ED). Delays in first-contact diagnosis and interfacility transfer can be attributed to hospital-to-hospital transfer [
16], while hospital door-to-revascularization delays are dependent mainly on the ED staff, nurses and physicians. These professionals represent the next set of healthcare professionals that the stroke patient encounters following paramedics [
17,
18]. Stroke patients might also present themselves straight to the ED, making ED personnel their first medical contact. Review articles have identified various barriers hindering the guideline-based management of stroke patients [
19,
20]. Among these barriers, insufficient knowledge and stroke unawareness are frequently encountered among personnel involved in stroke care, particularly in Emergency Departments (EDs), including both physicians [
21,
22,
23,
24,
25,
26,
27,
28] and nurses [
22,
23,
24,
25,
29,
30,
31,
32,
33,
34,
35].
The phenomenon is universal; studies have explored ED personnel from diverse countries, including the U.S. [
23,
32,
33,
34,
35], Great Britain [
31], Scandinavia [
21,
25], India [
30], Kenya [
36], Saudi Arabia [
27,
28] and Australia [
24,
26]. These countries have different management approaches and various levels of stroke care. Most studies have quantified the level of knowledge regarding signs and symptoms of stroke and eligibility criteria for intra-arterial therapies. This assessment has been done through physically administered [
22,
23,
30,
31,
32,
33,
35,
36], mailed [
21,
24], or web-based [
26,
27,
33] questionnaires, usually author-developed [
30,
31,
35], and based on available guidelines or fast stroke-recognition codes or scales.
In recognition of the critical role played by ED in minimizing door-to-revascularization times and improving stroke outcomes, we conducted a study in the Republic of Cyprus. Patients with stroke, lacking contraindications for thrombolysis within the proper timeline, must receive early and accurate treatment. Leading organizations in stroke management guidelines emphasize creating stroke teams for optimal care [
5,
37]. As stroke teams are not established in Republic of Cyprus hospitals, and the direct treatment of stroke patients is a collective responsibility [
38], our research aimed to assess stroke recognition and management knowledge among all healthcare professionals in the ED involved in stroke care. Recognizing the pivotal roles of both nurses and physicians in initial in-hospital stroke care within Greek-Cypriot EDs, our study targeted both of these healthcare provider populations rather than specifying the role of each team member. This study marks the inaugural effort of its kind in Cyprus.
4. Discussion
The present survey aimed to assess stroke recognition and management knowledge among healthcare professionals in the ED for the first time in Cyprus. We evaluated the general knowledge of frontline health professionals caring for stroke patients. Our study did not aim to delve into specific individual roles or highlight the knowledge each healthcare professional should possess. We treated them as a collective group, and our discussion did not elaborate on separate responsibilities, with no prioritization of questions. We demonstrated relatively low levels of stroke knowledge among HCPs working in EDs throughout the Republic of Cyprus, using a newly developed and validated questionnaire. Multivariate analysis revealed that higher levels of comprehensive stroke knowledge were significantly associated with extensive experience, being a physician rather than a nurse, and prior education or training in stroke management.
The level of stroke knowledge among HCPs in the present study was found to be 46%, which is proportionally rated among the lowest in available literature. Harper et al., demonstrated, in one of the first studies in the field, a mean score of 53% for stroke knowledge among 20 U.S. nurses who had completed a short, 10-item questionnaire [
32]. In another U.S. study, 63 nurses and paramedics achieved an average score of 58% on a 10-item, evidence-based, multiple choice, knowledge quiz [
33]. A study in Brazil involved testing 20 nurses on the recognition of stroke signs and symptoms, resulting in an average score of 68.5% [
29]. Emergency HCPs in Saudi Arabia [
13] and India [
30] achieved even higher scores, namely 64% and 68.8%, respectively. A recent nationwide study from Malaysia, conducted with an online questionnaire among HCPs, found that 76% of respondents demonstrated a solid understanding of stroke [
45].
Comparing stroke knowledge levels across various studies can be challenging due to several factors: i) the inclusion of diverse healthcare professionals, such as nurses, paramedics, physicians, and even medical students [
36], with varying training backgrounds; ii) the wide range of stroke care settings, including dedicated stroke care units, emergency departments, or pre-hospital emergency services; iii) the lack of universal tools for quantifying stroke knowledge, with most studies using author-developed tools specific to their research; and iv) study populations originating from different countries, resulting in substantial differences in stroke care organization and significant variations in the implementation of guideline-based therapies. Despite these shortcomings, a universal conclusion can be drawn: there is an overall suboptimal level of stroke knowledge among healthcare professionals engaged in stroke care.
Insufficient knowledge has been identified as a barrier to providing evidence-based stroke care [
46]. Demonstrably, educational programs for HCPs have been shown to enhance their knowledge and proficiency in stroke care [
47]. While these educational initiatives are crucial, a systematic review investigating the impact of stroke education and training for HCPs involved in stroke care reveals that the precise effect on patient outcomes remains unclear. Limited survey results indicate the need for more comprehensive research to understand the direct impact on patient well-being. Nevertheless, these aspects are acknowledged as crucial to maintaining a high standard of care for stroke patients. Notably, they improve the ability to recognize stroke, thereby increasing the number of strokes identified by HCPs [
48].
Concerning stroke recognition codes, only 24.9% of our study respondents identified the NIHSS as the proposed tool for assessing stroke severity (Question 5), indicating a likely unfamiliarity with the scale. This aligns with Lamba et al.'s study, where 62% of U.S. ED workers reported being unfamiliar with the NIHSS [
23], and with a study in a rural hospital in Brazil, where only 31.25% of ED nurses were familiar with the NIHSS [
29]. In contrast, Reynolds et al. found elevated levels of knowledge concerning the NIHSS (88.6%) among 88 highly specialized nurses in neurocritical care in a U.S. university hospital [
35]. Given these findings, there is a crucial need for disseminating material on the NIHSS, coupled with dedicated, focused, and repeated training in its completion across diverse clinical scenarios within Greek-Cypriot EDs.
Early recognition is the cornerstone of stroke therapy, and studies have shown how early recognition and therapy affect optimal patient outcomes [
49,
50]. Moreover, the use of NIHSS as an accurate and early diagnostic tool has demonstrated its efficiency when used by emergency medical services, providing a common language between healthcare professionals [
51].
Examining specific aspects of stroke management knowledge, our study revealed that only 17.8% of participants were aware of the guideline-proposed time-window for thrombolysis in stroke patients (Question 14). This percentage is notably lower than those reported in similar studies. For instance, in a U.S. academic tertiary hospital study involving 58 emergency department healthcare providers, 56% of respondents were familiar with the 3-hour thrombolysis time-window [
23]. In contrast, in a stroke referral center in Kenya, 53.8% of respondents were aware of it, although two-thirds of the participants were medical students [
36]. Similar results were observed in a Chinese study, where 54% of community physicians were aware of the thrombolysis time window [
52]. Greek-Cypriot ED HCPs demonstrated extremely low awareness of the current guideline for the 3-hour thrombolysis time window, and this lack of knowledge extended to other thrombolysis-related questionnaire items, specifically Questions 16, 21, 25, and 26 (refer to
Figure 1 and
Table 1). Albart et al., also reported lower knowledge results regarding thrombolysis, despite high overall knowledge scores [
45], highlighting the urgent need for targeted training and education on thrombolysis for HCPs involved in the care of stroke patients.
Suboptimal knowledge concerning the therapeutic window for thrombolysis in our study is alarming, as the neurological outcome is significantly affected by the early initiation of the intervention [
53].
A significant and rather linear association was found between years of work experience and performance in the stroke knowledge test, establishing it as an independent predictor in multivariate analysis across all groups of work experience, particularly compared to those with <1-year experience. This finding aligns with previous research. Specifically, Harper et al., demonstrated a positive correlation between more years of experience in emergency nursing and higher knowledge scores [
32]. Clinical experience among sub-Saharan nurses emerged as the most significant predictor of specific knowledge or skills, such as selecting the appropriate IV fluid for stroke patients or adhering to the thrombolysis time window, as indicated by Lin et al. [
36]. However, this observation has not been consistent across all studies. A Polish study revealed that paramedics with less than 11 years of experience exhibited greater proficiency compared to their more experienced colleagues. The finding was attributed to recent training and adherence to up-to-date guidelines [
54]. Adelman et al., in a sizable sample of 875 nurses from a single U.S. academic center, found no association between clinical experience (categorized as <1, 1-3, 4-10, and ≥11 years of employment) and adequate knowledge on stroke warning signs [
34]. It's worth noting that this study primarily focused on early recognition through warning signs, omitting other aspects of stroke awareness such as thrombolysis issues or patient management thereafter. A broader stroke knowledge base could possibly have discriminated an experienced from an inexperienced health professional involved in stroke care.
As regards to the contribution of previous stroke education or training on higher stroke knowledge levels, a 2009 study demonstrated that reading relevant literature on stroke and participating in Continued Medical Education (CME) activities were associated with higher stroke knowledge by up to 45% and 15% respectively in U.S. nurses [
32]. However, another U.S. study found that studying relevant material in the preceding year did not provide a benefit to nurses, unlike participation in CME and being a certified ED nurse [
33]. In our study, educational attainment did not affect stroke knowledge levels, but prior education or training did. However, we did not investigate how different sources of prior exposure to stroke knowledge (self-study, congress workshop etc.) influenced achieved scores. From an organizational perspective, it would be useful to know which interventions aid the most in building confidence in stroke care. This knowledge could guide hospitals in providing more targeted educational interventions to their ED staff.
In undergraduate medical students, the observation of stroke cases appears to be limited, underscoring the need for better demonstrations [
55]. Opting for a stroke-related fellowship could enhance the education of medical students [
56]. Regarding nursing students, evidence on the level of education is limited, but it seems that there are differential methods for stroke training across universities [
57]. While the educational challenges among medical and nursing students are evident, our study delved into the practical implications for physicians and nurses. With respect to the observed differences in our study among nurses and physicians, no study, to the best of our knowledge, has investigated this matter to date. Albart et al., compared knowledge across various physician categories and other HCPs, including nurses, but did not provide a clear indication of the nurses' scores [
45]. The higher stroke knowledge among physicians compared to nurses noted in our study should be interpreted with caution and not generalized. Notably, a significantly lower response rate among Greek-Cypriot ED physicians (47.3%) compared to nurses (74.1%) was observed. This discrepancy may be related to a lack of willingness by a significant number of physicians with lower levels of stroke knowledge to participate, potentially influencing the reported knowledge differential.
Regarding response rates, our study faces challenges in direct comparison with those reported in existing literature. The diverse types of healthcare professionals included in studied populations and the utilization of various enrollment methods (such as online surveys, face-to-face recruitment, questionnaires sent by regular or electronic mail, etc.) contribute to this complexity. For instance, a study that included 875 inpatient and ED nurses from a large academic hospital in the U.S., recruited via an online survey, displayed an overall response rate of 84% [
34]. Two studies focusing solely on emergency physicians, one in Saudi Arabia [
27] and the other in Australasia [
26], both web-based, yielded response rates of only 27% and 13%, respectively. However, comparing the response rate of physicians in our study (47.3%) demands careful scrutiny due to the utilization of face-to-face recruitment, which is expected to be more effective in recruiting participants. The differing recruitment methods make a direct comparison difficult. Lastly, in the 1999 study by Thomas et al., invitation to participate was sent by regular mail to nurses in Northeastern England resulting in a response rate of 80% [
31].
Our study was conducted from November 2019 to April 2020, largely pre-pandemic, as the World Health Organization declared the pandemic on March 11, 2020. Therefore, the pandemic did not affect either the data collection or the knowledge of health professionals. Early pandemic visits in EDs were shown to be lower for reasons other than virus-related diseases, as compared to the pre-pandemic period [
58]. Moreover, the virus incidence was still low at that time, and mainly affected the ICUs occupancy in Cyprus rather than EDs [
59].
5. Limitations
While our study provides valuable insights into knowledge on stroke recognition and management among emergency department healthcare professionals in the Republic of Cyprus, it is imperative to acknowledge various limitations. that warrant consideration.
Selection bias may not be excluded due to the voluntary nature of participation. This affects the ability to generalize the study findings, especially in the case of physicians. Nevertheless, it should be noted that the recruitment process included all health professionals in Emergency Departments across public and private hospitals in Cyprus (with only one private hospital not agreeing to participate) with a response rate of around 75%. However, there was a notable difference in the response rates between nurses (74.1%) and physicians (47.3%) which may impact the external validity. This underrepresentation of physicians in the sample may impact the generalizability of our findings to the broader physician population.
It should also be noted that the knowledge deficit on stoke recognition and management care identified in the study might be an underestimation, if we assume that healthcare professionals who opted-out from participating may be less interest in the topic and/or uncertain about their stroke knowledge. Therefore, it is prudent to acknowledge that actual knowledge levels may be even lower, necessitating a greater effort to take action.
Another limitation, also affecting external validity, is the under-representation of private hospitals in the final sample, accounting for only 15.7% of respondents. However, the majority of stroke cases in the Republic of Cyprus are directed by the Emergency Medical Services to the EDs of public hospitals, where treatment is administered. This renders the relatively low representation of private hospitals reasonable. While the refusal of an entire private hospital to participate in the study may have resulted in a slight overestimation of overall stroke knowledge levels, its impact on the generalizability of the study is expected to be minimal.
Finally, the questionnaire used to assess stroke knowledge was author-developed for this specific study and has not been tested previously. Nevertheless, it was developed following best practices in survey design and stroke guidelines. The questionnaire also demonstrated acceptable internal consistency, with a Kuder-Richardson coefficient of 0.71, nearly identical to the one found in the questionnaires developed by Thomas et al. (0.7). It's worth noting that both questionnaires were created by multidisciplinary team of experts and were based on current guidelines [
31].