Prevalence, clinical correlates, and burden of undiagnosed aortic stenosis in older patients: a prospective study in a non-cardiologic acute hospital ward.

BACKGROUND: The epidemiology of aortic stenosis (AS) in older patients admitted to non-cardiologic acute hospital wards and the effect of AS on mid-term survival are incompletely reported. In a cohort of very old patients admitted to an acute geriatric unit (AGU), we aimed to assess: (1) the prevalence of newly and previously diagnosed AS; and (2) the association between AS severity and patients' 6-month mortality. METHODS: The patients consecutively admitted in two AGU rooms from February 2016 to February 2018 were assessed with echocardiography and AS severity was defined according to standard criteria. We assessed frailty using a 34-item Frailty Index (34-FI), which was operationalized using health variable information, and the Clinical Frailty Scale (CFS). Vital status at 6 months was extracted from Regional Register of Birth and Death. RESULTS: Two hundred and three patients (mean age 84.5 ± 6.0 SD, female gender 56.1%) were included. Of these, 57 (28.1%) had AS, mild in 9 (4.5%), moderate in 32 (16.1%) and severe in 16 (8.1%). A new diagnosis of AS was obtained in 42 (73.7%) patients, of whom 33 (78.6%) had moderate or severe AS. At 6 months, 61 (28.9%) patients died. In multiple regression models, after adjusting for covariates, frailty, as assessed with both FI and CFS, was independent predictor of 6-month mortality whereas AS was not. CONCLUSIONS: Among older patients admitted to non-cardiologic acute hospital wards, AS was common and frequently underdiagnosed. The severity of AS was not associated with increased 6-month mortality, whereas frailty was the most important predictor.

The Effect of an Impaired Arousal on Short- and Long-Term Mortality of Elderly Patients Admitted to an Acute Geriatric Unit.

OBJECTIVE: Impaired arousal is associated with negative outcomes in intensive care units, but studies in acute medical wards are scanty. The study aim was to evaluate the association between impaired arousal, as measured using an ultrabrief screen, and risk of both 1- and 6-month mortality and discharge to nursing home (NH) or hospice. DESIGN: Prospective cohort study with 6-month follow-up. SETTING: An acute geriatric unit (AGU) of a university-based hospital in Northern Italy. PARTICIPANTS: All patients aged 65 years or older, admitted to the AGU between September 2012 and February 2015. MEASUREMENTS: The modified Richmond Agitation Sedation Scale (m-RASS) was used to assess patients' arousal; a score of 0 denotes normal arousal, scores ranging from +1 to +4 denote increased arousal, and scores ranging from -1 to -5 denote decreased levels. The association of m-RASS scores with 6-month mortality was assessed by a Kaplan-Meier analysis. The impact of impaired arousal, defined by the m-RASS as anything other than "awake and alert," was determined using Cox proportional hazard regression for 1- and 6-month mortality after admission and logistic regressions were used for discharge to NH or hospice. The models were adjusted for age, sex, dementia, Sequential Organ Failure Assessment score, and disability. RESULTS: Patients (n = 2477) had a mean age of 84 years, and were predominantly women (59.8%). Impaired arousal on admission was present in 644 (25.9%) patients: 33 (1.3%) were comatose (m-RASS = -5), 56 (2.3%) awakened to pain only (m-RASS = -4), 43 (1.7%) were very drowsy (m-RASS = -3), 93 (3.8%) drowsy (m-RASS = -2), and 212 (8.6%) were slightly drowsy (m-RASS = -1), but there were also 110 (4.4%) patients with restlessness, 75 (3.0%) with agitation, 17 (0.7%) with severe agitation, and 3 (0.1%) with combative behavior. Globally, 337 patients died within 1 month and 689 patients within 6 months. After adjustment for covariates, patients with impaired arousal had a significantly higher chance of having died at 1-month (adjusted hazard ratio [HR] 1.56, 95% confidence interval [CI] 1.22-2.03) and 6-month follow-up (adjusted HR 1.31, 95% CI 1.10-1.57). Those with impaired arousal were more likely to be discharged to a new NH (odds ratio [OR] 1.75, 95% CI 1.19-2.57) or to hospice (OR 1.96, 95% CI 1.18-3.23) than those without impaired arousal. CONCLUSIONS: An abnormal arousal level is an independent predictor of increased risk of 1- and 6-month mortality and of discharge to a new NH or hospice. The assessment of arousal with m-RASS should be routinely performed on all older patients on admission to acute hospital wards to screen potentially critical conditions.

The sequential organ failure assessment score predicts 30-day mortality in a geriatric acute care setting.

BACKGROUND: Several tools to predict patients' survival have been proposed in medical wards, though they are often time consuming and difficult to apply. The Sequential Organ Failure Assessment (SOFA) is a promising tool that has been validated in intensive care units but never in acute medical wards. The aim of this study was to assess whether the SOFA score predicts short-term (30 days) mortality in a population of elderly patients admitted to a geriatric ward. METHODS: This prospective observational cohort study was carried out in a Geriatric Clinic of an Italian teaching hospital. Among 359 patients consecutively and firstly admitted between January and April 2012, we considered eligible those (n = 314) directly admitted from the emergency department. Demographic, functional, and clinical variables were collected. The SOFA score was measured on admission (SOFA-admission) and 48 hours later (SOFA-48h). The vital status of participants was assessed over the 30 days following discharge. RESULTS: Patients who died at 1-month follow-up were prevalently men, more comorbid, disabled, and undernourished and had higher SOFA scores on admission and at 48 hours than their counterparts. Among all potential predictors of 1-month mortality, the SOFA-48h score was the best, with a score greater than 4 significantly increasing the risk to die during hospitalization or in the 30 days following discharge (odds ratio = 7.030; 95% confidence interval = 3.982-12.409). CONCLUSIONS: The SOFA score, a user-friendly tool used in intensive care units to estimate prognosis, is able to predict 1-month mortality also in patients admitted to an acute geriatric setting.