Prevalence of Thiamine Deficiency in Pregnancy and its impact on fetal outcome in an area endemic for thiamine deficiency

BACKGROUND

Pregnancy is a metabolically challenging state with increased nutritional demand. Thiamine is an important cofactor in various metabolic pathways and thus its deficiency could have a serious impact on both maternal and fetal outcomes. Kashmir has thiamine deficiency in endemic proportions, with multiple reports of infantile beriberi, postpartum neuropathy, and gastric beriberi. This prompted us to assess the extent of the burden of thiamine deficiency during pregnancy.

METHODS

This cross-sectional study was conducted for a period of two years in pregnant women attending the antenatal clinic. A demographic, clinical, biochemical, and dietary assessment was done in all participants. The whole blood thiamine levels were assessed by high-performance liquid chromatography.

RESULTS

A total of 492 participants were included in the study with a mean age of 30.30±4.57 years and a mean BMI of 24.25±3.32 Kg/m2. The mean whole blood thiamine level of all participants was 133.29±14.32 nmol/L. Low thiamine status was present in 38.2% (n = 188) of participants. Participants with low thiamine had poor perinatal outcomes, with 3.1% (n = 6) reporting early infant death.

CONCLUSION

A high prevalence of thiamine deficiency occurs in pregnant women of Kashmir. Low thiamine is associated with poor nutritional status as well as poor perinatal outcomes.

TRIAL REGISTRATION

CTRI/2022/07/044217.

1337 IMPROVING THE PERI-OPERATIVE MANAGEMENT OF ANTICOAGULATION IN PATIENTS WITH NECK OF FEMUR FRACTURES (NOFFS)

Introduction

Neck of femur fractures (NOFFs) are a clinically significant diagnosis, with 10% of patients dying within one month of diagnosis [1]. There is a strong association between earlier surgery and improvement in postoperative outcomes [2]. Taking anticoagulation can cause delays in patients being operated on. At Homerton University Hospital (HUH), no previous guideline existed to aid specifically in the management of patients with NOFFs on anticoagulation. We created a guideline in order to reduce delays to theatre, in keeping with national guidance (<36 hours to operation).

Methods

We audited all patients in 2020 admitted to HUH with NOFFs taking anticoagulation. A guideline was then created, reflecting new national guidance [3] on the management of anticoagulation pre-operatively for NOFF patients. Three PDSA cycles were completed, with repeat audit cycles following dissemination and teaching of guideline to relevant clinical groups.

Results

Following implementation of our guideline, 56% of patients had surgery within 36 hours of admission, compared to 25% previously. Advice being given to the admitting team regarding timing of the operation was more consistent, and the admitting team needed to ask for advice less often. There was an overall increase in consistency of management.

Conclusions

Ensuring NOFFs are operated on promptly reduces the risk of co-morbidity and mortality [2]. There are often incorrect delays to theatre following anticoagulation administration due to perceived risk of bleeding. We created and implemented a new guideline, which successfully reduced time taken for patients on anticoagulation to be taken to theatre for operation.

References

[1] NICE. ‘Hip Fracture: Management’. Clinical guideline. Published: 22 June 2011. Accessed at: nice.org.uk/guidance/cg124.

[2] Seong YJ, Shin WC, Moon NH, Suh KT. Timing of Hip-fracture Surgery in Elderly Patients. Hip Pelvis. 2020;32(1):11-16. doi: 10.5371/hp.2020.32.1.11.

[3] Griffiths R, Babu S, Dixon P et al. Ray), Guideline for the management of hip fractures. Anaesthesia 2020; 76: 225–37.

120 Improving Delirium Recognition and Management Through In-Situ Simulation

Introduction

Delirium is a common condition that is often associated with increased morbidity and mortality, longer hospital admission, and discharge to a residential or nursing home. By improving our ability to recognise and manage these patients we can intervene early to help reduce the likelihood of these outcomes.

Method

We organised several in-situ simulation scenarios with junior staff working on the Elderly Care Unit. The research team designed a scenario to re-create a typical delirious patient on the ward. Participants had to recognise the patient was delirious and instigate a management plan. Participants completed a pre and post-intervention questionnaire to ascertain whether they felt the simulation had improved their confidence. Additionally we performed an audit to investigate whether our intervention led to an improvement in the recognition and management of delirium in patients on the ward.

Results

The questionnaires showed an increase in participants’ confidence and knowledge when managing a delirious patient on the ward. From reviewing patient notes pre-intervention we identified that 24 patients were delirious during admission,14 of which were accurately diagnosed with delirium. The remaining 10 patients were diagnosed with “Acute Confusion”. On reviewing these 10 patients’ notes, they were all likely to have a diagnosis of delirium. Post-intervention there were 14 patients identified as delirious during their admission. All these patients were correctly documented as having delirium with no inaccurate use of terminology. The data also showed increasing use of tools such as AMTS and 4AT to diagnose delirium.

Conclusions

From the data gathered, we can see participants are better at recognising and diagnosing delirium. However, our sample sizes are too small to test statistical significance between data points. To improve the project we would include a larger sample size to determine whether the simulation produces a statistically significant improvement in confidence levels.

160 The Effect of Frailty and COVID-19 Infection on Clinical Outcomes in Older Adults—A Single Centre Retrospective Study

Introduction

It was anticipated that the COVID-19 pandemic would put a strain on our healthcare system, disproportionately affecting older people. NICE guidance recommended using frailty scoring to support decision making around escalation of care. This study aimed to assess frailty, demographics and COVID-19 infection and to investigate how these related to outcomes of patients aged over 65 years admitted to hospital.

Methods

A single centre retrospective cohort study was carried out by reviewing the electronic health records of all admissions over 65 years. Data points collected included length of stay (LOS), frailty score using the Rockwood Clinical Frailty Scale (CFS) and mortality. Patients were stratified into COVID and non-COVID based on health records and into non-frail (CFS 1–4) and frail (CFS 5–9).

Results

A total of 257 patients admitted between 30th March and 30th April 2020 were included in the study (mean age 79 years, 43% female). 141 (54.9%) of patients were diagnosed with COVID-19 infection. 120 patients had CFS 1–4 and 136 has CFS 5–9. 1 patient did not have a frailty score due to insufficient information. 68 (26.8%) of all patients died during the admission. The relative risk (RR) of mortality of patients with coronavirus was 6.3 (95% CI 3.1–12.6, p < 0.0001). The RR of mortality for frail patients compared to the non-frail was 2.1 (95% CI 1.3–3.2, p = 0.002). The median LOS for patients with COVID-19 was 5 days, compared to 4 days for patients who did not have coronavirus. Frailty did not predict longer admission, with median LOS of 5 days for both non-frail and frail patients.

Conclusion

The results demonstrated in this study show that COVID-19 infection and frailty were significantly associated with increased mortality in older patients. This validates the continued use of frailty scoring of older patients on admission to support care planning.

Sodium and potassium excretion in normotensive and hypertensive population in Kashmir

One hundred thirty five hypertensive patients and equal number of age and sex matched healthy controls were taken up for studying the relationship of 24 hour urinary sodium and potassium excretion, sodium-potassium molar ratio and body mass index (BMI) with blood pressure in normotensive and hypertensive population in Kashmir. There was statistically significant elevated 24 hour urinary sodium excretion (p < .001), increased Na+-K+ molar ratio, significantly higher BMI in hypertensive population as compared to controls whereas there was a lower 24 hour urinary excretion of potassium (p > .20) in patients with hypertension. Thus sodium and potassium excretion, Na+-K+ molar ratio and body mass index has direct bearing in perpetuation or causation of hypertension in Kashmir which may be related to intake of salt tea.

Aortic valve decalcification revisited

A 75-year-old woman with a small calcified aortic root, severe aortic stenosis and triple vessel coronary artery disease developed angina at rest. Aortic valve decalcification and quadruple aorto-coronary bypass were done as her aortic root was too small and calcified to do anything else. Postoperative clinical and hemodynamic results have been excellent. Literature review supports application of this therapy in selected patients with trileaflet senescent aortic stenosis.

Acute inflammatory demyelinating polyradiculoneuropathy presenting as complete heart block and Stoke-Adams attacks

A patient with acute inflammatory demyelinating polyradiculoneuropathy (AIDP, Guillain-Barré syndrome) whose presenting complaints were related to autonomic dysfunction in the form of parasympathetic and sympathetic overactivity is reported. Parasympathetic overactivity was severe enough to cause complete atrioventricular block (atropine-responsive) and Stoke-Adams attacks, for which a demand pacemaker was required. Limb weakness was apparent 48 hours later. To our knowledge no such presentation of AIDP has been previously recorded.

Cytosolic androgen receptor in regenerating rat levator ani muscle

The development of the cytosolic androgen receptor was studied after degeneration and regeneration of the rat levator ani muscle after a crush lesion. Muscle regeneration appears to recapitulate myogenesis in many respects. It therefore provides a model tissue in sufficiently in large quantity for investigating the ontogenesis of the androgen receptor. The receptor in the cytosol of the normal levator ani muscle has binding characteristics similar to those of the cytosolic receptor in other androgen-sensitive tissues. By day 3 after a crush lesion of the levator ani muscle, androgen binding decreased to 25% of control values. This decrease was followed by a 4-5 fold increase in hormone binding, which attained control values by day 7 after crush. Androgen binding remained stable at the control value up to day 60 after crushing. These results were correlated with the morphological development of the regenerating muscle after crushing. It is concluded that there is little, if any, androgen receptor present in the early myoblastic stages of regeneration; rather, synthesis of the receptor may occur after the fusion of myoblasts and during the differentiation of myotubes into cross-striated muscle fibres.

The DNA-delay mutants of bacteriophage T4

Mutants of phage T4 defective in genes 39, 52, 58-61, and 60 (the DNA delay or DD genes) are characterized by a delay in phage DNA synthesis during infection of a nonpermissive Escherichia coli host. Amber (am) mutants defective in these genes yield burst sizes varying from 30 to 110 at 37 C in E. coli lacking an am suppressor. It was found that when DD am mutants are grown on a non-permissive host at 25 C, rather than at 37 C, phage yield is reduced on the average 61-fold. At 25 C incorporation of labeled thymidine into phage DNA is also reduced to 3 to 10% of wild-type levels. Mutants defective in the DD genes were found to promote increased recombination as well as increased base substitution and addition-deletion mutation. These observations indicate that the products of the DD genes are necessary for normal DNA synthesis. The multiplication of the DD am mutants on an Su(-) host at 37 C is about 50-fold inhibited if prior to infection the host cells were grown at 25 C. This suggests that a compensating host function allows multiplication of DD am mutants at 37 C in the Su(-) host, and that this function is active in cells grown at 37 C prior to infection, but is inactive when the prior growth is at 25 C. Further results are described which suggest that the products of genes 52, 60, and 39 as well as a host product interact with each other.