Lithium treatment is a proven method for bipolar disorder management, but its narrow therapeutic range and the risk of severe side effects, including lithium intoxication, pose significant clinical hurdles. Lithium intoxication, a potentially life-threatening complication, can occur during treatment, raising ongoing questions about its clinical factors, risk elements, and best practices for management.

Our objective is a comparative analysis between patients who have experienced lithium intoxication and those who have not, aiming to identify influencing factors and enhance clinical care.

We collected demographic data, age at lithium treatment initiation, treatment duration, therapeutic adherence, Mental Health consultations, and lithium level monitoring from 14 individuals requiring clinical attention due to lithium intoxication and 14 patients with similar gender, age, and diagnosis with lithium treatment but without intoxication during four years of follow-up.

Regarding the results, the age of onset of lithium treatment in patients with lithium intoxication was 30.2 years (SD=8), and the duration of lithium treatment averaged 11.1 years (SD=8.8), which did not significantly differ from the control group with ages of onset at 38.1 years (SD=15.1) and treatment duration of 9.27 years (SD=8.8), respectively. Lithium intoxication patients developed severe complications, including hospitalizations in medical-surgical units, the necessity for dialysis, and death, one fatal case. Although therapeutic adherence to lithium, measured through pharmaceutical dispensation, exceeded 90% and was comparable in both groups, patients affected by lithium intoxication exhibited a significantly higher treatment discontinuation rate (OR 32.5; 95% CI, 3.1 to 337.8) during the follow-up period. Patients who experienced lithium intoxication had an average of psychiatric consultations every 11.2 months (SD=13.4), with 35.7% not attending at least once a year, while the control group had an appointment every 5.31 months (SD=2.7) (p > 0.05). Lastly, despite both groups having a similar frequency of plasma lithium level monitoring, occurring approximately every 5.5 months (SD=2.6) and 7.8 months (SD=4.8), respectively, in 28.5% of those who suffered from lithium intoxication did not undergo any monitoring for periods exceeding 18 months (p < 0.05).

Our research highlights the significance of delivering thorough clinical care and continuous monitoring to patients receiving lithium treatment for bipolar disorder. Ensuring effectiveness therapeutic adherence and maintaining strict monitoring of lithium levels are critical factors that significantly enhance treatment safety. Appropriate management has the potential to improve the quality and safety of care for people with bipolar disorder who are dependent on lithium therapy.

None Declared

Aortopathy in Turner syndrome is associated with aortic dilation, and the risk of dissection is increased when the aortic size index is ≥ 2–2.5 cm/m2. We evaluated the aortic biophysical properties in paediatric Turner syndrome using cardiac MRI to determine their relationship to aortic size index.

Turner syndrome patients underwent cardiac MRI to evaluate ventricular function, aortic dimensions, and biophysical properties (aortic stiffness index, compliance, distensibility, pulse wave velocity, and aortic and left ventricular elastance). Spearman correlation examined correlations between these properties and aortic size index. Data was compared to 10 controls.

Of 25 Turner syndrome patients, median age 14.7 years (interquartile range: 11.0–16.8), height z score −2.7 (interquartile range: −2.92 – −1.54), 24% had a bicuspid aortic valve. Turner syndrome had increased diastolic blood pressure (p < 0.001) and decreased left ventricular end-diastolic (p < 0.001) and end-systolic (p = 0.002) volumes compared to controls. Median aortic size index was 1.81 cm/m2 (interquartile range: 1.45–2.1) and 7 had an aortic size index > 2 cm/m2. Aortic and left ventricular elastance were greater in Turner syndrome compared to controls (both p < 0.001). Increased aortic size index correlated with increased aortic elastance (r = 0.5, p = 0.01) and left ventricular elastance (r = 0.59, p = 0.002) but not aortic compliance. Higher ascending aortic areas were associated with increased aortic compliance (r = 0.44, p = 0.03) and left ventricular elastance (r = 0.49, p = 0.01).

Paediatric Turner syndrome with similar aortic size index to controls showed MRI evidence of abnormal aortic biophysical properties. These findings point to an underlying aortopathy and provide additional parameters that may aid in determining risk factors for aortic dissection.

Psychotropics are often used among dementia in order to reduce behavior problems. In patients with dementia, hospital admission is a stressful event, for hospitalization cause as well as for environment change. Consequently, delirium risk is high and this is proportional to dementia stage. In addition, it ́s known psychotropics promote delirium.

To evaluate if the patients admitted to an acute geriatric unit develop more delirium depending on dementia diagnosis and dementia stage and depending on the use of psychotropics. To analize if dementia and psychotropics are two independent risk factors for the development of delirium.

We selected all the patients admitted in the Acute Geriatric Unit of HUN during May and June of two consecutive years (2021 and 2022). We collected demographic, administrative, functional and pathological variables, as well as the onset of delirium: delirium signs on admission (DSA) and delirium diagnosis on discharge (DDD) and psychotropics use. A descriptive study was carried out to analyze the relationship between dementia and its stage (GDS), psychotropics use and delirium.

658 patients were recluted with a medium age of 87.8, 55.6% were females, 44.5% had dementia. The mean hospital stay was 5.8 days and 11.7% died. Functionally, the mean Barthel was 56.5 and Lawton 1.49. Regarding comorbidities, the most frequent ones were arterial hypertension(81%), Osteoarthritis(55%) and heart failure(51%). The main delirium predisposing factors were: age more than 80(93.5%), polypharmacy(87.5%), and neurological disease(47%). Comparing: -Dementia and non-dementia-patients: DSA(55.7%vs23.7;p0,000), DDD (43.7%vs17.5%;p0.000) -GDS 4-5 and GDS 6-7: DSA(52.7%vs57.2;p0.435), DDD (50.4%vs37.9%;p0.031). -Psychotropics-users and non-psychotropics-users: DSA(42.3%vs27.4%), DDD(31.6%vs22,5%). Night psychotropics DSA(41.8%vs31%), DDD(31.7%vs24%); neuroleptics DSA(53.1%vs33.6), DDD(45.2%vs24.3%); anticholinesterase DSA(51%vs36.9%), DDD(45.1%vs27.7%). All of them p<0.05.

Dementia and psychotropics are predisposing factors for delirium. Its effect is additive. Neuroleptics have the clearest relationship with delirium. We observed, as dementia was more severe, the risk of delirium was greater but the use of neuroleptics decreased. This could be due to the presence of more hypoactive phases in final stages.

Psychobehavioral symptoms are one of the main causes of institutionalization. After the first months of institutionalization, it could be a good opportunity to consider deprescribing psychotropics, at the same time person-centered non-pharmacological measures should be implemented. Also, if dementia stage is moderate or advanced, acetylcholinesterase- olyph-inhibitor (AchEI) should be deprescribed.

To evaluate the difference between the number of psychotropic drugs in institutionalized patients and those who are at home.

We selected all the patients admitted in the Acute Geriatric Unit of “Hospital Universitario de Navarra” during May and June of two consecutive years (2021 and 2022). We collected demographic, administrative, functional and pathological variables, as well as delirium predisposing factors, drugs on admission and discharge and Drug-Burden-Index (DBI). A descriptive study was carried out and our hypothesis was analyzed.

658 patients were recluted with a medium age of 87.8, 55.6% were females, 44.5% had dementia and 22% were Institutionalized. The mean hospital stay was 5.8 days and 11.7% died. Functionally, the mean Barthel was 56.5 and Lawton 1.49. Regarding comorbidities: arterial hypertension (81%), Osteoarthritis (55%), heart failure (51%), dislipemia (47%), chronic kidney disease (42%), auricular fibrillation (39%), osteoporosis (33%) and diabetes (31%). Regarding geriatric syndromes: polypharmacy (87,5%), sleep disturbances (48%), hearing loss (43%), chronic pain (41,5%), visual loss and constipation (38%) and depression (33%). The main delirium predisposing factors were: age more than 80 (93.5%), olypharmacy, neurological disease (47%), altered senses, chronic pain and depression. Comparing psychotropic use between institutionalized and non institutionalized: psychotropics (78%vs69%), night psichotropics (72%vs63%), neuroleptics (37%vs18,5%), AchEI (13%vs6,5%), antiepileptics (21%14%). All of them p<0.05. However, there were no statistically significant differences in the use of benzodiazepines, antidepressant or antiparkinsonian.

Nowadays, institutionalized patients have more phsychotropic drugs than non-institutionalized ones, especially neuroleptics. Moreover, they are more frequent in patients with severe dementia. Maybe, the explanation is DEPRESCRIPTION AVOIDANCE due to an acute fear of a behavioral decompensation. We recommend educating in non-pharmacological measures and insisting on an adequacy of pharmacological prescriptions periodically.

The prevalence of dementia is higher among minoritized Hispanic/Latino populations in the U.S. Development of linguistically relevant and validated cognitive assessments are urgently needed to adequately address the care needs of this at-risk group. List learning tasks are widely used to evaluate verbal episodic memory and are consistently shown to be sensitive to memory deficits across various

neurologic etiologies. The aim of this study was to validate a Spanish list learning task developed as a linguistically appropriate measure of memory in a diverse sample of Spanish speaking Bay Area older adults who identify as Hispanic/Latino.

Cognitive scores were assessed in 72 Spanish-speaking older adults living in the Bay Area, California, originally from different countries across South and Central America [(n=29 with CDR scores of 0; n=31 with CDRs of 0.5; and n=12 with CDR of 1), aged 54-96, 30% male)], who completed the Spanish list learning task and a brief neuropsychological battery. The list learning task contains 9 words, 3 words from 3 different semantic categories. Category exemplars were excluded. Administration includes three immediate recall trials, a 30-second delay free recall, 10-minute delay free and cued recall, and yes/no recognition. In this initial validation study, we selected the 10-minute delay recall trial as our primary variable and looked at several indices of construct validity. We hypothesized delayed free recall would: 1) correlate highly with other episodic memory tasks, and minimally with non-memory tests (controlling for CDR sum of boxes), and 2) show step-wise declines as total CDR increased from 0 to 1 (controlling for age, sex, and education).

Delayed recall scores of 30-seconds and 10-minutes showed step-wise declines as CDR scores increased (CDR 0 vs. 1, p<0.001 and CDR 0.5 vs. 1, p=0.001). There were no differences in delayed recall between CDR 0 vs. CDR 0.5 (p>0.05). 10-minute delay showed medium-to-large correlations with UDS Craft Story Delayed Recall (partial r =0.45, p<0.001) and Benson Complex Figure Recall (partial r=0.63, p<0.001). Nonsignificant, weaker associations were observed with measures of executive (F Word Verbal Fluency partial r=0.10, Digit Span Forward partial r=0.12), and language (Animal Fluency partial r=0.18) function.

Although there is heterogeneity within Hispanic/Latino populations in the U.S., findings begin to support ecological and construct validity of the Spanish list learning task as a measure of verbal memory in older Spanish-speaking adults in the Bay Area. Supporting ecological validity, delayed recall scores significantly differentiated functionally impaired (CDR=1) from functionally mild or unimpaired older adults (CDR=0 or 0.5), though evidenced less sensitivity differentiating unimpaired from mild stages of illness. The Spanish list learning task evidenced strong construct validity as a measure of episodic memory, including strong correlations with other validated memory tasks, and non-significant correlations with non-memory tasks. Larger studies should account for diversity of Spanish speakers in the U.S to see how region of origin, education, and differences between first- and second-generation Spanish speakers influences performance on the task. Future work incorporating imaging markers of brain structure may help further validate the Spanish list learning task as an appropriate measure of memory.

Coronavirus disease 2019 (COVID-19) modify voluntary admission rates to psychiatric wards in the early phases following pandemic onset. Older patients have higher COVID-19 distress scores because elderly people are at risk for COVID-19 infection.

The present investigation aimed at admission rates of elderly patients to a General Hospital Psychiatric Ward during the lockdown due to the COVID-19, compared to similar periods of 2018 and 2019.

Anonymized data on psychiatric admissions (n=55) from one general hospital psychiatric ward have been obtained and analysed. We compared admission characteristics between April and June of 2018 and 2019 with the same period of 2020 (lockdown).

During the COVID-19 lockdown, a significant reduction in psychiatric hospitalizations of older patients (aged >65 years) was observed in the lockdown (69.2%; χ2=4.823,df=1,p=0.028) in contrast with young patients (26.7% reduction). There was a reduction of 14% in admission due to suicidal behaviour (IRR = 0.57; 95% CI: 0.11-2.75; p=0.48), 25% in depression (IRR = 0.28; 95% CI: 0.64-1.25; p=0.09) and 50% in psychotic disorders (IRR = 0.33; 95% CI: 0.07-1.48; p=0.15). There was none admission by dementia during the lockdown.

Changes in the number of psychiatric admissions, particularly for older patients, were observed during the COVID-19 lockdown. During this period, their fear levels could modify their psychiatric admission rates. We suggest that the decrease of psychiatric admissions in the elderly was due to fear of contagion in hospitals.

None Declared

Functioning in acute inpatient psychiatric units has been challenged by the Coronavirus disease 2019 (COVID-19). Patients with more severe mental health symptoms changed their rates of voluntary admission to psychiatric wards during the onset of the pandemic. Peritraumatic distress scores and increased likelihood of being psychologically affected by the COVID-19 pandemic can lead to a psychiatric admission. However, other factors could prevent hospitalization.

The present investigation aimed at admission rates of patients by depression, adjustment disorder or suicidal behaviour to a General Hospital Psychiatric Ward. We compared the lockdown due to COVID-19 in 2020 to similar periods of 2018 and 2019.

The data of one general hospital psychiatric ward admissions have been obtained and analysed. We compared admission characteristics of 237 patients between April and June of 2018 and 2019 with 79 patients in the same period of 2020 (lockdown).

During the COVID-19 lockdown, there was a 35.8% reduction in psychiatric admissions and a significant reduction in psychiatric admission was observed due to suicidal behaviour (IRR = 0.49; 95% CI: 0.26-0.89; p=0.002) and depression (IRR = 0.24; 95% CI: 0.08-0.68; p=0.007), but similar rates of adjustment disorders (IRR = 1.12; 95% CI: 0.58-2.15; p=0.73).

We suggest that patients with depression or suicidal behaviour avoided admission, for fear of contagion in hospitals. Also, greater family support could prevent self-injurious behaviours. By contrast, other disorders continued to require the same admission rate, since the social consequences derived from confinement could lead to the genesis or worsening of symptoms, such as adjustment disorders.

None Declared