1176 DEMOGRAPHIC AND CLINICAL PRESENTATION OF HOSPITALISED PATIENTS WITH SARS-COV-2 OMICRON VARIANT

Introduction

Objectives of this retrospective study were to describe clinical presentations and mortality outcome of hospitalised patients with COVID-19 omicron variant within two acute district general hospitals and to evaluate demographic factors associated with these presentations and mortality.

Methods

Data was obtained over a month in 2021-22 from a retrospective survey of all patients hospitalised and detected to have SARS-COV-2 omicron variant infection. The trust serves a diverse multi-ethnic inner-city population. Data included socio-demographic details, vaccination status, admitting specialty and mortality outcome. Patients were sub-divided into three groups; Group 1 were admitted with ‘true’ COVID pneumonitis; Group 2 were found to have ‘incidental’ COVID on admission screening; Group 3 were negative for COVID on admission but developed COVID >7days after admission.

Results

Of 553 patients, only 24.1%[133/553] were in Group 1; 322[58.2%] in Group 2; 98[17.7%] in Group 3. Patients with Group 1 and Group 3 were significantly older than those in Group 2 (p<0.001). 30% patients from BAME ethnicity had COVID pneumonitis compared to 19% from white ethnicity[p=0.002]. 20% patients were admitted within non-medical specialties i.e. surgical specialties, paediatrics and obstetrics. Of 36 requiring critical care, only 21 were in Group 1; 20/21[95%] of these were unvaccinated; 7/21 who died were all unvaccinated[100%]. This study showed that common COVID presentations included delirium, falls (and fractures), seizures, COPD, and antenatal problems. 13.7%[76/553] patients died; only 21 were in Group 1[27.6%]. Only 26 deaths were directly attributable to COVID; 4.7%[26/553] of all patients.

Discussion

This large multi-ethnic study has described clinical presentations and mortality of hospitalised patients with omicron. It has determined socio-demographic factors associated with these presentations including ethnicity and vaccination rates. The study useful information for future COVID studies examining outcomes and presentations of omicron and future COVID variants.

1296 DEMOGRAPHIC AND MORTALITY EVALUATION OF URGENT COMMUNITY RESPONSE REFERRALS THAT ARE MANAGED IN COMMUNITY VS THOSE HOSPITALISED

Introduction

Demographic evaluation of urgent community response teams [UCR] is important to ensure equity of access and clinical outcomes for patients from all socio-demographic groups using such services. This retrospective descriptive study aimed to evaluate demographic and mortality differences between patients referred to UCR in terms of those managed in the community [Group1] versus those subsequently hospitalised [Group2].

Methods

Data was obtained over a 12-month period [2021-2022] for all new patients referred to a 7-day consultant-led UCR that serves a multi-ethnic, inner-city population. Data included demographic details, source of referral, urgency of referral and mortality within 60 days.

Results

Of 995 patients, 75.6%[n=752] were in Group 1; 24.4%[243] were in Group 2. The two groups were comparable in terms of age [mean(SD): 80.1(12.6) vs 80.0(11.4), p=ns] and gender [males:39.4% vs 42.4%,p=ns]. There were similar proportion of Black and minority ethnic patients within the two groups [21.0% (158) vs 24.7% (60), p=ns]. Source of referral were comparable between the two groups[p=ns]; overall, 67.7%[674] were from GP practices, 5.6%[56] Community Practitioners, 4.7%[47] NHS111, 2.7%[27] Ambulance, 32%[32] Palliative care, 5.9%[59] Emergency department, 10.1%[100] post-hospitalisation. Compared to Group 1 [46.9% (353)], significantly more patients in Group 2 were referred for urgent assessment within 2 hours [65.4% (159), p<0.001]. More patients died in Group2 within 60 days [22.2% (54) vs 11.3% (85), p<0.001].

Discussion

This large survey has described age, gender and ethnic similarities between the two groups, demonstrating equity of provision irrespective of protected characteristics. As might be clinically expected, patients referred for hospitalisation were assessed more urgently and had higher mortality rates compared to those managed in the community. This study provides valuable information for clinicians and researchers of similar UCR services in future.

1178 RETROSPECTIVE SURVEY OF DIFFERENTIAL DIAGNOSES IN A NEUROVASCULAR CLINIC

Introduction

Diagnosis of Transient Ischaemic Attack [TIA] is important to minimise risk of future strokes. This retrospective descriptive study aimed to describe frequency of alternative diagnoses in a busy inner-city neurovascular clinic and evaluate processes of assessment and investigations of ‘true’ TIA patients.

Methods

Data was obtained over a 2-year period [2019-2020] for all new patients assessed in a busy consultant-provided daily week-day neurovascular service that serves a million multi-ethnic, population. Data collected included socio-demographic details, final clinical diagnoses, and process measures including speed of assessment and rate of neurological and cardiological investigations.

Results

Of 1764 patients, 39.3%[694] were diagnosed as TIA; 60.7%[1070] had 40 distinct differential diagnoses. Top ten diagnoses included migraine including ocular migraine [9.5%], Syncope [5.5%], Local Eye conditions (non-neurological)[5.3%], non-cervical radiculopathy [4.0%], Benign Paroxysmal Positional Vertigo [4.0%], Previous/Incidental Stroke [3.7%], Transient Global Amnesia [2.4%], Orthostatic Hypotension [1.8%], Non-migraine Headache syndromes [1.6%], Cervical Neuropathy [1.3%]. 10.9%[193] had no organic pathological diagnosis. For 694 TIA patients, 100% had neuroimaging [CT/MRI] and 98% had carotid dopplers on or before day of clinic. Non-urgent cardiovascular investigations performed included echocardiogram [83%], Holter monitoring [75%] and bubble echocardiogram [5%].

Discussion

This large survey has described the frequency of TIA and alternative diagnoses in a dedicated neurovascular service. The study highlights the importance of accurate diagnosis of TIA by experienced clinicians for appropriate secondary prevention. We also described the efficiency, and speed of assessment and proportion of investigations undertaken in these patients. This study provides valuable information to clinicians, researchers and commissioners of stroke services in future.

1177 SOCIO-DEMOGRAPHIC AND RISK FACTOR DIFFERENCES BETWEEN TIA AND TIA MIMICS

Introduction

Diagnosis of Transient Ischaemic Attack [TIA] is important to minimise risk of future strokes. This retrospective descriptive study aimed to evaluate socio-demographic and risk factor differences between TIA and TIA ‘mimics’ in patients presenting to an inner-city neurovascular clinic.

Methods

Data was obtained over a 2-year period [2019-2020] for all new patients assessed in a consultant-provided daily week-day neurovascular service that serves a million multi-ethnic, population. Data collected included socio-demographic details, clinical risk factors, source of referral and final clinical diagnoses.

Results

Of 1764 patients, 39% [694] were diagnosed as TIA; 61% [1070] were TIA mimics with 40 distinct differential diagnoses. Compared to TIA mimics, TIA patients were older [mean(SD): 69.3(13.8) vs 59.7(16.1),p<0.001]; higher prevalence of TIA mimics in females vs males [66% vs 54%; p<0.001]. There were proportionately more patients with TIA mimics from Black and minority ethnic groups (401/610:66%) compared whites (669/1154:58%)[p=0.034]. Compared to TIA mimics, TIA patients had higher prevalence of hypertension [56% vs 40%,p<0.001], Diabetes [22% vs 14%,p<0.001], Atrial Fibrillation [10% vs 4%,p<0.001], Chronic Heart Disease [18% vs 9%,p<0.001] and moderate to severe carotid stenosis [5% vs 0.4%,p<0.001]. Prevalence of other risk factors in TIA patients included Patent Foramen Ovale [1.4%], Cardiolipin Antibodies [3.2%], and Thrombophilia [2.3%]. 14% of TIA patients had no identifiable risk factors.

Discussion

This large survey has described socio-demographic [age, gender and ethnicity] differences and prevalence of risk factors between TIA patients and TIA mimics. These differences may be useful in terms accurate diagnosis of TIA by experienced clinicians. This study provides valuable information for clinicians and researchers of stroke services in future.

Anti-Streptococcus mutans, anti-adherence and anti-acidogenic activity of Uvaria chamae P. Beauv

ETHNOPHARMACOLOGICAL RELEVANCE

Streptococcus mutans a key pathogen, produces biofilm, acids and extracellular polysaccharides in the oral cavity; which leads to the development of dental caries. Control of these pathogenic markers can prevent dental caries. Uvaria chamae P. Beauv. is a medicinal plant traditionally used for many ailments including oral infections. Root, leaves and bark extracts has proven antibacterial activity including activity against caries causing S. mutans. However, its effect on the virulence properties of S. mutans, responsible for the development of dental caries, has not been studied.

AIM OF THE STUDY

This study investigated the phytochemical constituents, anti-S. mutans, anti-adherence and anti-acidogenic activity of U. chamae root extract.

MATERIALS AND METHODS

Extracts were prepared and phytochemical analysis was performed. Minimum inhibitory concentrations (MIC) were determined, and MIC and sub-MIC concentrations of the best solvent were selected for their effect on the virulence factors of S. mutans. The results were analysed using one-way ANOVA and Wilcoxon Rank Sum Tests.

RESULTS

The dichloromethane extract, with proanthocyanidin as a major chemical constituent, produced an MIC of 0.02 mg/ml. At 6 h, exposure to 0.005, 0.01, and 0.02 mg/ml extract significantly reduced S. mutans adherence by 39, 59, and 77% respectively (p < 0.05). Uvaria chamae also significantly inhibited acid production in S. mutans at 10, 12, 14 and 16 h (p < 0.05). At ½ MIC, the plant extract caused remarkable downregulation of the virulence genes responsible for the adherence, biofilm formation, extracellular polysaccharide synthesis and acid production.

CONCLUSIONS

This suggests that U. chamae extract may potentially be used to inhibit the proliferation of S. mutans and silencing the expression of pathology-related genes, which will prevent the development of dental caries.

Understanding explanatory and pragmatic trials: Examples from randomized controlled trials on vertebroplasty

OBJECTIVES

To better understand the explanatory-pragmatic distinction in the design and interpretation of randomized controlled trials (RCTs).

METHODS

We review the explanatory-pragmatic distinction in clinical trial design. We use the PRECIS-2 tool to evaluate the trial design of selected RCTs on percutaneous vertebroplasty for osteoporotic vertebral compression fractures. We discuss difficulties in the selection of criteria and in the construction of PRECIS diagrams. We also examine how inconsistency in the selection of various items of trial design can cause confusion in the interpretation of results.

RESULTS

The selection of criteria and the scoring of multiple PRECIS domains were subjective and thus debatable. The pragmascope patterns of various vertebroplasty trials were heterogeneous. Many trials had both pragmatic and explanatory components. Some placebo-controlled trial goals seem to have been explanatory, but their design actually included enough pragmatic items such that the meaning of negative trial results remains ambiguous.

CONCLUSION

The results of a trial cannot be interpreted without understanding the various design choices made along the explanatory-pragmatic spectrum.

Chronic gut inflammation impairs contextual control of fear

Chronic inflammatory diseases are highly comorbid with anxiety in humans. The extent to which chronic inflammation is responsible for this relationship remains to be determined. We therefore tested the hypothesis that prolonged, but not brief, gut inflammation is sufficient to evoke anxiety-related behaviours in mice. We used the discriminative fear to context conditioning paradigm to assess fear generalization, which is a prominent feature of anxiety disorders. Gut inflammation was induced by exposure to dextran sodium sulfate (DSS) in the drinking water, a well-established rodent model of ulcerative colitis evoking prolonged inflammation. Neither acute (1 × 5 day cycle) nor chronic (3 × 5 day cycles) exposure to DSS affected fear responses when tested shortly after conditioning. Mice in all groups generated more fear responses (freezing) in a chamber previously paired with mild shock, as compared to a chamber with no pairing. This suggests DSS exposure had no effect on acquisition or expression of conditioned fear. Acute and control animals showed this same contextual control of freezing when tested 9 days later. In contrast, at this remote time point, the chronically treated animals exhibited increased freezing in the unpaired chamber such that freezing was equivalent in both contexts. These animals, however, showed intact preference for the unpaired chamber when allowed to freely move between chambers. These data suggest that some mnemonic process engaged after training, such as memory consolidation, is affected by past chronic inflammation so as to generalize negative associations and engage fearful responding in inappropriate contexts, despite intact knowledge that the chambers have different affective associations sufficient for place preference.

Improving the quality of translation for patients with language barriers

Background

Patients with language barriers have worse health outcomes. To promote equitable care, efforts must be made to ensure effective communication with patients, including providing professional translation. In a busy, overstretched health service this can be difficult to achieve. Language translators can reduce barriers, improve safety and ensure impartiality.

Description of the Problem

Aims - To understand the quality of translation and explore interventions that could improve this in a busy diverse hospital in East London.

Methods

A quality improvement project in the Medical Admissions Unit of the Royal London Hospital was completed over two years. Patients with language barriers were identified, methods of translation were analysed and interventions to improve access to independent translation were introduced.

Results

Cycle 1- All medical admissions over a two-week period were analysed. 36 patients had documented evidence of a language barrier with 7 (19.4%) having independent professional translation. 20 (55.6%) patients had family members providing translation, for 4 patients limited English was used and previous documentation was used for 3 patients.

Cycle 2- Posters and information leaflets were disseminated regarding how to access translation services. There was no improvement in the types of translation used. Only 1 patient had impartial professional translation, out of 43 patients identified.

Cycle 3- Advocates (Bengali speaking professional translators) were made available on the ward twice a week. Results showed no significant improvement, with only 6 (10%) identified having impartial professional translation. However staff and patient feedback has been positive.

Lessons

Impartial professional translation is essential in reducing barriers and delivering equitable health care. This can be difficult to achieve in busy healthcare services. Education alone is not enough. Good accessibility to translation services is paramount in promoting usage.

Key messages

• Healthcare services often fall short of providing impartial professional translation.

• Education alone is not enough. Good accessibility to translation services is paramount in promoting usage.

Understanding clinician barriers to providing equitable healthcare for ethnic minority populations

Background

It has long been recognised that ethnic minority groups have worse health outcomes in the UK. Social determinants of health (SDH) contribute significantly to these inequalities. However, inequalities persist, even after controlling for these determinants. As well as being less likely to engage with healthcare services, ethnic minority groups are more likely to report poor experiences. The majority of healthcare in the UK is delivered through patient: clinician interactions (PCI), therefore a good working relationship with patients is paramount. Recent focus has been placed on ensuring “cultural competence”. Whilst this is important, we suggest also examining the culture within healthcare itself. Healthcare professionals are not immune to bias, preconceptions and the stresses of work and this must be taken into account. A seminal piece of work on this is the “culture of medicine” framework proposed by Boutin-Foster et al, which examines the impact of these factors.

Aims and Methodology

This paper aims to examine barriers within PCI that impact healthcare for ethnic minorities. A formal literature review was conducted and 131 relevant studies were identified. Grounded theory was used for analysis and data was categorised into themes with Boutin-Foster’s framework used as a structure.

Results

The review found that the concept of implicit bias was paramount in PCI. Three major barriers resulting from this bias are suggested: its impact on clinical decision making, the impact on clinician-patient communication and finally the resultant lack of trust in clinicians and poor perceived quality of care by ethnic minority groups.

Conclusions

Clinician implicit bias is a major barrier to equitable healthcare for ethnic minority populations. A solution we propose is to acknowledge our own preconceptions. Awareness of our own culture, preconceptions and the pressures around us will allow us to find solutions to these barriers, including further research and education.

Key messages

• Clinician implicit bias within the “Culture of Medicine” is a barrier to equitable healthcare for ethnic minority populations.

• Awareness of our own culture and preconceptions is paramount to addressing these barriers.