Factores pronósticos a corto plazo en los ancianos atendidos en urgencias por insuficiencia cardiaca aguda

Seven- and thirty-day mortality in digoxin poisoning: Results from the DIGITOX study

BACKGROUND

Digoxin poisonings are relatively common and potentially fatal, requiring immediate therapeutic intervention, with special attention to the patient's hemodynamic status and the presence of electrocardiographic and electrolytic disturbances.

OBJECTIVE

To identify factors associated with seven-day and thirty-day mortality in digoxin poisoning.

DESIGN, SETTINGS AND PARTICIPANTS

A retrospective, observational, multicenter study was conducted across 15 Hospital Emergency Departments (HED) in Spain. All patients over 18 years of age who presented to participating HEDs from 2015 to 2021 were included. The inclusion criteria encompassed individuals meeting the criteria for digoxin poisoning, whether acute or chronic.

OUTCOMES MEASURE AND ANALYSIS

To identify independent factors associated with 7-day and 30-day mortality, a multivariate analysis was conducted. This analysis included variables of clinical significance, as well as those exhibiting a trend (p < 0.1) or significance in the bivariate analysis.

MAIN FINDINGS

A total of 658 cases of digoxin poisoning were identified. Mortality rates were 4.5% (30 patients) at seven days and 11.1% (73 patients) at thirty days. Regarding 7-day mortality, the mean age of deceased patients was comparable to survivors (84.7 (8.9) vs 83.9 (7.9) years; p = ns). The multivariate analysis revealed that factors independently associated with 7-day mortality encompassed the extent of dependence assessed by the Barthel Index (BI 60-89 OR 0.28; 95% CI 0.10-0.77; p = 0.014 and BI>90 OR 0.22; 95% CI 0.08-0.63; p = 0.005), the identification of ventricular arrhythmias (OR 1.34; 95% CI 1.34-25.21; p = 0.019), and the presence of circulatory (OR 2.84; 95% CI 1.19-6.27; p = 0.019) and neurological manifestations (OR 2.67; 95% CI 1.13-6.27; p = 0.025). Factors independently associated with 30-day mortality encompassed extent of dependence (BI 60-89 OR 0.37; 95% CI 0.20-0.71; p = 0.003 and BI>90 OR 0.18; 95% CI 0.09-0.39; p < 0.001) and the identification of circulatory (OR 2.13; 95% CI 1.10-4.15; p = 0.025) and neurological manifestations (OR 2.39; 95% CI 1.25-3.89; p = 0.006).

CONCLUSIONS

The study identifies the degree of dependency assessed by the Barthel Index and the presence of cardiovascular and neurological symptoms as independent predictors of both 7-day and 30-day mortality. Additionally, the detection of ventricular arrhythmia is also an independent factor for 7-day mortality.

A Systematic Review of Frailty Scores Used in Heart Failure Patients

BACKGROUND

Frailty is a complex, multi-dimensional syndrome commonly observed in patients with heart failure (HF). The presence of frailty in patients living with HF is strongly associated with increased vulnerability to adverse events, including falls, hospitalisation, and increased mortality. Several scoring systems have been developed to assess the presence of frailty in patients with HF. These scoring systems vary in their complexity and applicability; however, they provide the physician with a more comprehensive understanding of the biological, functional, and psycho-social needs of these patients.

OBJECTIVES

To assess the clinical applicability of frailty tools in HF patients and their prognostic value, specifically relating to outcomes such as mortality, readmissions, and clinical deterioration.

METHODS

A literature search using six electronic databases (PubMed, Scopus, Embase, Medline, Cochrane and Web of Science) was performed in accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Key search Medical Subject Headings (MeSH) terms combined "Frailty" AND "Heart failure". Studies were included if they assessed frailty using systematically defined criteria in a HF population. The PRISMA guidelines were used to include all relevant articles based on titles and abstracts. Full text articles were screened based on abstract relevance. A systematic narrative review of the literature was conducted on the final list of full text articles.

RESULTS

An initial search yielded 8,066 articles. Following the removal of duplicates, title, and abstract searches, the remaining 154 articles underwent full text review, with 31 articles accepted for final qualitative synthesis. The two most utilised frailty scores were the Fried Frailty Phenotype (n=10) and the Barthel Index (n=8). The frailty scores provide prognostic data on multiple outcomes including mortality, increased hospitalisation, and functional decline.

CONCLUSION

At the present time there is no universally applied frailty measure in a HF population. Choice of frailty score should be guided by physician experience and clinical setting, as well as tailored to a patient's functional, biological, and psycho-social circumstances. A push to adopt a single universal scoring system may help to ensure that frailty is assessed in all patients who live with HF.

The utility of the Barthel index as an outcome predictor in older patients with acute infection attending the emergency department

BACKGROUND

Functional decline and frailty are common in older adults and influence the risk of adverse outcomes. We aimed to assess the value of a Barthel index at the Emergency Department (ED-BI) score in predicting 30-day mortality and ED reconsultation among older patients with acute infection.

METHODS

We performed a prospective multicentre cohort study of older patients (≥75 years) diagnosed with acute infection in 69 Spanish EDs. Demographic, comorbidities, functional status, clinical and analytical data were collected. Unadjusted and adjusted logistic regression models were used to assess the association between ED-BI score, mortality and ED reconsultation.

RESULTS

In total 1596 patients with a mean age of 84.7 years were included in the study and 51.7% female. The most frequent focus of infection was respiratory in 918 patients (57.5%). Patients with an ED-BI< 60 points were significantly older, predominantly female, more likely institutionalized and more urinary infections. When comparing patients with an ED-BI score ≥ 60 points with those< 60 points no differences were found in ED reconsultation but in the latter group mortality at 30-days was higher (p < 0.001).

CONCLUSION

An ED-BI score< 60 points appears to be a strong predictor of mortality at the 30-day follow up in older patients with acute infection.

DATA AVAILABILITY

The data used to support the findings of this study are included within the article.

The Effect of High Lactate Level on Mortality in Acute Heart Failure Patients With Reduced Ejection Fraction Without Cardiogenic Shock

BACKGROUND

We aimed to determine the effect of blood lactate levels on cardiovascular (CV) death and hospitalization for heart failure (HF) in acute HF patients with reduced left ventricular ejection fraction (EF).

METHODS

Eighty-five acute HF patients with reduced ejection fraction were divided into two groups according to admission blood lactate levels. 48 of them had low blood lactate levels (< 2 mmol/l) and 37 of them had high blood lactate levels (≥ 2 mmol/l). Patients with acute coronary syndrome, cardiogenic shock, sepsis and low blood pressure at admission were excluded from the study. Primary endpoint is the composite of cardiovascular (CV) death and hospitalization for heart failure (HHF) in 6-month follow-up. Secondary endpoint is the change in NT-proBNP levels from admission to 72 h.

RESULTS

Baseline characteristics of patients were similar in two groups. On baseline echocardiographic evaluation; patients with high lactate revealed a higher mitral E/A ratio (2.34 [0.43-3.31], p = 0.008) and a lower TAPSE ratio (14 [10-27], p = 0.008) than patients with low lactate levels. Over a median follow-up period of 6 months, the primary end point occurred in 28 (75.7%) of 37 patients assigned to high lactate group and in 20 (41.7%) of 48 patients assigned to low lactate group (p = 0.006). High lactate levels significantly increased the risk of CV death and HHF at 6 months by nearly 5.35-fold in acute HF patients with reduced EF. The change in NT-proBNP levels at 72nd hour after admission were similar between two groups.

CONCLUSION

Higher lactate levels at admission related with higher HHF at 6 months and may be related with higher risk of CV death in acute HF patients with reduced EF.

Factors associated with in-hospital mortality and adverse outcomes during the vulnerable post-discharge phase after the first episode of acute heart failure: results of the NOVICA-2 study

OBJECTIVE

To identify patients at risk of in-hospital mortality and adverse outcomes during the vulnerable post-discharge period after the first acute heart failure episode (de novo AHF) attended at the emergency department.

METHODS

This is a secondary review of de novo AHF patients included in the prospective, multicentre EAHFE (Epidemiology of Acute Heart Failure in Emergency Department) Registry. We included consecutive patients with de novo AHF, for whom 29 independent variables were recorded. The outcomes were in-hospital all-cause mortality and all-cause mortality and readmission due to AHF within 90 days post-discharge. A follow-up check was made by reviewing the hospital medical records and/or by phone.

RESULTS

We included 3422 patients. The mean age was 80 years, 52.1% were women. The in-hospital mortality was 6.9% and was independently associated with dementia (OR = 2.25, 95% CI = 1.62-3.14), active neoplasia (1.97, 1.41-2.76), functional dependence (1.58, 1.02-2.43), chronic treatment with beta-blockers (0.62, 0.44-0.86) and severity of decompensation (6.38, 2.86-14.26 for high-/very high-risk patients). The 90-day post-discharge combined endpoint was observed in 19.3% of patients and was independently associated with hypertension (HR = 1.40, 1.11-1.76), chronic renal insufficiency (1.23, 1.01-1.49), heart valve disease (1.24, 1.01-1.51), chronic obstructive pulmonary disease (1.22, 1.01-1.48), NYHA 3-4 at baseline (1.40, 1.12-1.74) and severity of decompensation (1.23, 1.01-1.50; and 1.64, 1.20-2.25; for intermediate and high-/very high-risk patients, respectively), with different risk factors for 90-day post-discharge mortality or rehospitalisation.

CONCLUSIONS

The severity of decompensation and some baseline characteristics identified de novo AHF patients at increased risk of developing adverse outcomes during hospitalisation and the vulnerable post-discharge phase, without significant differences in these risk factors according to patient age at de novo AHF presentation.

Long-term prognostic value of functional status and delirium in emergency patients with decompensated heart failure

AIMS

Heart failure (HF) is prevalent in older adults and is associated with impaired physical and cognitive function. However, these factors are rarely included in studies about long-term prognosis of HF. The aim of the study was to determine whether functional status and delirium at admission (prevalent delirium) would predict 1-year mortality in patients with decompensated HF (DHF).

METHODS

We performed a prospective observational study in adult patients with DHF attended at two Spanish Emergency Departments (ED) in the context of the Epidemiology Acute HF Emergency project. Functional status was assessed by Barthel Index (BI) and prevalent delirium by the Brief Confusion Assessment Method within the first 24 h of admission. We used Kaplan-Meier survival curves for delirium and multivariable Cox regression models to estimated hazard ratio (HR) and survival probability for death while adjusting for six potential confounders.

RESULT

We enrolled 239 patients (age 81.7 ± 9.4 years, women 61.1%). BI < 60 was 23.4 and 14.6% of patients had delirium. Age (HR 1.046 CI 95% 1.014-1.080, p < 0.004) and BI (HR 0.979 CI 95% 0.972-0.979, p < 0.001) were independently associated with 1-year mortality. In patients without severe functional dependence at admission, delirium (HR 3.579 CI 95% 1.730-7.403, p < 0.001) and age (HR 1.051 CI 95% 1.014-1.090, p = 0.007) independently predicted long-term mortality.

CONCLUSION

Age and functional dependence are strong predictors of long-term mortality in patients with DHF. In patients without severe functional dependence, delirium-a potentially modifiable risk factor-identified a subgroup of patients with higher mortality. Evaluating functional status and delirium in ED could improve decision-making and future care of patients with DHF.

Basal functional status predicts one-year mortality after a heart failure hospitalization in elderly patients - The RICA prospective study

BACKGROUND

Dependence for basic activities of the daily living (ADL) relates to adverse outcomes in elderly acute heart failure (AHF) patients.

METHODS

We evaluated patients ≥75years admitted because of AHF, divided according to preadmission Barthel Index (BI) category: severe (BI 0-60), moderate (BI 61-90) and slight dependence or independence for basic ADL (BI 91-100). We compared their baseline characteristics and used logistic regression models to determine whether a BI≤60 confers higher one-year mortality risk.

RESULTS

We included 2195 patients, mean age 83years; 57% women, Charlson Index 3, 65% with preserved left ventricular ejection fraction. Their median preadmission BI was 90 (65-100); 21.7% had BI≤60. Patients with BI≤60 were older, more often females, with higher comorbid and cognitive burden and more likely to be institutionalized. 560 patients (26%) died within the follow-up period. A preadmission BI≤60 was significantly associated with higher risk of 12-month mortality (HR 1.42, 95% CI 1.14-1.77) together with male sex (1.27, 1.04-1.54), valve disease (1.49, 1.20-1.83), worse preadmission NYHA class (1.44, 1.20-1.73), stage IV chronic kidney disease (1.70, 1.35-2.15), pulmonary edema (1.33, 1.01-1.76), no family support (1.47, 1.06-2.06), and higher Charlson Comorbidity Index (1.09, CI 1.05-1.13) and Pfeiffer cognitive screening questionnaire scores (1.10, 1.05-1.14).

CONCLUSION

Among elderly AHF patients, the presence of severe (BI≤60) preadmission dependence for basic ADL confers a significant and independent risk of one-year post-discharge mortality.

Impact of Frailty and Disability on 30-Day Mortality in Older Patients With Acute Heart Failure

The objectives were to determine the impact of frailty and disability on 30-day mortality and whether the addition of these variables to HFRSS EFFECT risk score (FBI-EFFECT model) improves the short-term mortality predictive capacity of both HFRSS EFFECT and BI-EFFECT models in older patients with acute decompensated heart failure (ADHF) atended in the emergency department. We performed a retrospective analysis of OAK Registry including all consecutive patients ≥65 years old with ADHF attended in 3 Spanish emergency departments over 4 months. FBI-EFFECT model was developed by adjusting probabilities of HFRSS EFFECT risk categories according to the 6 groups (G1: non frail, no or mildly dependent; G2: frail, no or mildly dependent; G3: non frail, moderately dependent; G4: frail, moderately dependent; G5: severely dependent; G6: very severely dependent).We included 596 patients (mean age: 83 [SD7]; 61.2% females). The 30-day mortality was 11.6% with statistically significant differences in the 6 groups (p < 0.001). After adjusting for HFRSS EFFECT risk categories, we observed a progressive increase in hazard ratios from groups G2 to G6 compared with G1 (reference). FBI-EFFECT had a better prognostic accuracy than did HFRSS EFFECT (log-rank p < 0.001; Net Reclassification Improvement [NRI] = 0.355; p < 0.001; Integrated Discrimination Improvement [IDI] = 0.052; p ;< 0.001) and BI-EFFECT (log-rank p = 0.067; NRI = 0.210; p = 0.033; IDI = 0.017; p = 0.026). In conclusion, severe disability and frailty in patients with moderate disability are associated with 30-day mortality in ADHF, providing additional value to HFRSS EFFECT model in predicting short-term prognosis and establishing a care plan.

A Review of Prognostic Tools in Heart Failure

A minority of patients with end-stage disease are referred to palliative medicine for consultation in advanced heart failure. Educating stakeholders, including primary care, cardiology, and critical care of the benefits of hospice and palliative medicine for patients with poor prognosis, may increase appropriately timed referrals and improve quality of life for these patients. This article reviews multiple tools useful in prognostication in the setting of advanced heart failure.

Incidence and impact of delirium on clinical and functional outcomes in older patients hospitalized for acute cardiac diseases

BACKGROUND

Delirium is one of the most frequent complications of hospitalization in elderly patients. Its influence on prognosis in patients admitted for acute cardiac diseases is not well known. The objective of this study is to assess the incidence of delirium and its impact on clinical and functional outcomes in older patients hospitalized for acute cardiac diseases.

METHODS

We prospectively analyzed 203 patients aged 75years or older admitted to a cardiology unit. Delirium was diagnosed with the Confusion Assessment Method. Logistic regression analysis was used to assess independent predictors of in-hospital delirium and to examine the independent risk of mortality, readmission, functional decline, and need for new help at discharge, at 1month and 12months associated with the development of delirium, after adjusting for age, comorbidity, and initial diagnosis.

RESULTS

The incidence of delirium was 17.2%. Patients with delirium were older (83±5 vs 81±5years, P=.016) and showed a higher prevalence of major geriatric syndromes (82.9% vs 54.5%, P=.002). Aggressive ventilation modes, urinary catheters, prolonged fluid therapy, night treatments, longer immobilization, and physical restrain were associated with the incidence of delirium. Patients with delirium presented longer stays (8.9±6.2 vs 6.5±4.0days, P=.016) and a greater adjusted risk of functional decline at discharge (odds ratio 2.94, 95% CI 1.10-7.86, P=.032) and of 12-month mortality (odds ratio 4.20, 95% CI 1.81-9.74, P=.001).

CONCLUSION

Delirium is a common preventable complication in older patients with acute cardiac diseases. It is associated with poorer in-hospital functional and clinical outcomes, and increased postdischarge mortality.

Prognostic value and risk factors of delirium in emergency patients with decompensated heart failure

OBJECTIVE

Patients with heart failure (HF) seen at the emergency department (ED) are increasingly older and more likely to present delirium. Little is known, however, about the impact of this syndrome on outcome in these patients. We aimed to investigate the prognostic value and risk factors of delirium at admission (prevalent delirium) in ED patients with decompensated HF.

METHODS AND RESULTS

We performed a prospective, observational study, analyzing the presence of prevalent delirium in decompensated HF patients attended at the ED in 2 hospitals in Spain in the context of the Epidemiology Acute Heart Failure Emergency project. We used the brief Confusion Assessment Method to assess the presence of delirium. Patients were followed for 1 month after discharge. Of 239 enrolled patients (81.7 ± 9.4 years, women 61.1%, long-term care [LTC] 11%), 35 (14.6%) had prevalent delirium (20% LTC vs 9.4% in-home, P = .078). The factors associated with delirium in the multivariate analysis were functional dependence (P = .001) and dementia (P = .005). Prevalent delirium was an independent risk factor of death within 30 days (OR 3.532; 95% CI 1.422-8.769, P = .007) whereas autonomy in basic activities of daily living was a protective factor (OR 0.971; 95% CI 0.956-0.986, P = .001). The area under the ROC curve for our 30-day mortality model was 0.802 (95% CI 0.721-0.883, P = .001).

CONCLUSION

Prevalent delirium in patients with decompensated HF was a predictor of short-term mortality. Routine identification of delirium in patients at risk, particularly those with greater functional dependence, can help emergency physicians in decision-making and enhance care in patients with decompensated HF.

[Key messages for the initial management of the elderly patient with acute heart failure]

Acute heart failure is a high prevalence geriatric syndrome that has become one of the most frequent causes of visits to emergency departments, as well as hospital admission, and is associated with high morbidity, mortality and functional impairment. There has been an increasing amount of information published in recent years on the initial management of acute heart failure and the results of the short-term outcomes, as well as the natural history of the disease. The objective of this study is to provide several recommendations that should be taken into account in the initial management of the elderly patient with acute heart failure in the emergency departments, and to review the most interesting currently on-going clinical trials.

Characteristics of acute heart failure in very elderly patients - EVE study (EAHFE very elderly)

OBJECTIVES

To determine the characteristics and prognostic factors of early death in the very elderly with acute heart failure (AHF).

PATIENTS AND METHODS

We performed a prospective, observational study of AHF patients attended in Emergency Departments (ED), analyzing 45 variables collected in ED and studying troponin, natriuretic peptides and echocardiographies, not always available in the ED. The patients were divided into 2 groups: nonagenarian (age ≥ 90 years) and controls (age < 90 years). The study variables were mortality and death or reconsultation to the ED for AHF within 30 days after inclusion.

RESULTS

We included 4700 patients (nonagenarians: 520, 11.1%). The 30-day mortality was 21.5% and 8.7% (p<0.01), respectively with a combined event of 33.3% and 26.7% (p=0.001). Age ≥ 90 years was maintained in all the models associated with death (OR: 1.94, CI 95%: 1.40-2.70). In nonagenarians, chronic kidney insufficiency (OR: 2.07, CI95%: 1.16-3.69), severe functional dependence (OR: 2.18, CI95%; 1.30-3.64) and basal oxygen saturation <90% (OR: 1.97, CI95%: 1.17-3.32) and hyponatremia <135 mEq/L (OR: 1.89, CI95%: 1.05-3.42) were predictive variables of mortality. We observed an association between elevated troponin levels and natriuretic peptide values > 5,180 pg/mL and mortality (OR: 4.26, CI95%: 1.83-9.89; and OR: 3.51, CI95%: 1.45-8.48; respectively).

CONCLUSIONS

The profile of nonagenarians with AHF differs from that of younger patients. Although very advanced age is an independent prognostic factor of mortality, these patients have fewer predictive factors of mortality, being only functional deterioration, basal kidney disease, hyponatremia and respiratory insufficiency on arrival at the ED and probably troponin values and elevated natriuretic peptides.

Management of acute heart failure in spanish emergency departments based on age

INTRODUCTION AND OBJECTIVES

To investigate possible age-related differences in the profile, clinical symptoms, management, and short-term outcomes of patients seen for acute heart failure in Spanish emergency departments.

METHODS

We performed a multipurpose, multicenter study with prospective follow-up including all patients with acute heart failure attended in 29 Spanish emergency departments. The following variables were collected: demographic, personal history, geriatric syndromes, data of acute episode, discharge destination, in-hospital and 30-day mortality and 30-day revisit. The sample was divided into 4 age groups: <65, 65-74, 75-84, and ≥85 years.

RESULTS

We included 5819 patients: 493 (8.5%) were <65 years old, 971 (16.7%) were 65-74 years old, 2407 (41.4%) were 75-84 years old, and 1948 (33.5%) were ≥85 years old; 4424 patients (76.5%) were admitted from the emergency department, 251 of whom (4.5%) died during hospitalization. Statistically significant differences were observed in relation to cardiovascular risk factors, comorbidities, geriatric syndromes, clinical presentation, and diagnostic and therapeutic procedures based on an increase in the age of the groups. A statistically significant linear trend was observed between age group and the probability of hospital admission (P<.001), and hospital (P<.001) and 30-day mortality (P<.001).

CONCLUSIONS

The management of acute heart failure in elderly patients requires a multidimensional approach which goes beyond merely cardiological aspects of treatment.

[Prognostic role of NT-proBNP in emergency department in the elderly with acute heart failure]

OBJECTIVE

To determine prognostic role of NT-proBNP as predictor of 30 day-mortality and readmission in the elderly with acute heart failure (AHF) treated in Spanish Emergency Departments (EDs), and to analyse the confounding factors when the NT-proBNP value is interpreted.

MATERIAL AND METHODS

A multicentre and multi-purpose cohort study with prospective follow-up was conducted on all patients aged 65 years or older with AHF treated in Spanish EDs. The variables recorded include demographic characteristics, comorbidity, details of episode, and NT-proBNP value. The outcome variables were 30 day-mortality and readmission. An NT-proBNP ≥ 5,180 pg/ml was adopted as the cut-off limit. The statistical package SPSS 18.0 was used to analyse the data.

RESULTS

A total of 585 patients were included, with a mean age of 80.4 (SD: 6.9) years old. The cut-off NT-proBNP ≥ 5,180 pg/ml was independently associated with a severely impaired glomerular filtration (<30 ml/h) (P < .001) and severe episode (NYHA II-IV) (P = .012). The NT-proBNP area under curve (AUC) for 30 day-mortality was 0.71 (CI 95%: 0.63-0.77; P < .001) and for 30 day-readmission, was 0.50 (CI 95%: 0.45-0.56; P = .846). A multivariable analysis showed that the cut-off NT-proBNP ≥ 5,180 pg/ml was an independent factor associated with 30 day-mortality in the elderly with AHF attended in Spanish EDs.

CONCLUSIONS

The NT-proBNP value is associated with short-term mortality in the elderly with AHF attended in the EDs independently of the presence of confounding factors, such as the severity of the episode and glomerular filtration reduction, but not with 30 day-readmission.

[Predictive variables for mortality in elderly patients hospitalized due to heart failure with preserved ejection fraction]

BACKGROUND AND OBJECTIVES

The prevalence of heart failure (HF) increases with age. Even though the mortality of patients ≥ 80 years of age with HF and preserved left ventricle ejection fraction (LVEF) is very high, the predictor variables are not well-known. The main goal of this study was to evaluate the mortality predictor factors in this subgroup of the elderly population.

PATIENTS AND METHODS

An observational and prospective study of patients hospitalized due to HF with preserved LVEF has been conducted. The demographic, clinical, functional and analytic factors were evaluated when the patients were admitted with special attention to the co-morbidities. The primary endpoint was the total mortality in the subgroup of patients ≥ 80 years of age after a year of follow-up. The predictor variables were studied by means of a multivariate Cox regression model.

RESULTS

From a total of 218 patients with an average age of 75.6 (±8.7) years of age, 75 patients (34.4%) were ≥ 80 years. The mortality rate of patients ≥ 80 years of age totaled 42.7%, in relation to 26.6% for the lower age group (log-rank<.001). After a multivariate analysis using the Cox regression model in patients ≥ 80, the serum urea levels above the average (hazard ratio [HR] 3.93; 95% confidence interval [95% CI] 1.58-9.75; P = .003), the age (HR 1.17; 95% CI 1.07-1.28; P<.001), the hyponatremia (HR 3.19; 95% CI 1.51-6.74; P = .002) and a lower score on the Barthel index (BI) (HR 1.016; 95% CI 1.002-1.031; P = .034) were independent mortality predictors after an one-year follow-up.

CONCLUSIONS

Serum urea levels, age, hyponatremia and a low BI score could be proposed as independent mortality predictors in patients ≥ 80 of age hospitalized for HF with preserved LVEF.

Comprehensive geriatric assessment and hospital mortality among older adults with decompensated heart failure

BACKGROUND

The aim of this study is to assess whether a simple comprehensive geriatric assessment (CGA) score predicts hospital mortality among very elderly patients admitted with heart failure (HF).

METHODS

This is a prospective follow-up of 581 individuals aged ≥75 years admitted for decompensated HF to an acute geriatric unit from October 2006 to September 2009. A CGA score (range, 0-10) was constructed using baseline individual data on 5 domains: dependence in activities of daily living (Katz index), mobility (qualitative mobility scale), cognition (Mini-Mental State Examination), comorbidity (Charlson index), and number of prescribed medications.

RESULTS

Mean age of patients was 85.8 ± 5.8 years, 67% were women, and 75% had preserved ventricular function (ejection fraction >45%). Fifty percent of patients required assistance in ≥1 activities of daily living, 66% had mobility problems, 45% had cognitive impairment, the mean Charlson index was 3.97 ± 3.01, and 36% had >7 medications prescribed. As a result, the mean CGA score was 4.8 ± 2.2. Hospital mortality was 8.2%. In multivariate analysis, variables associated with hospital mortality included New York Heart Association functional class III (odds ratio [OR] 4.1, 95% CI 1.5-10.8), class IV (OR 19.6, 95% CI 6.3-61), pulmonary edema on chest radiography (OR 3.0, 95% CI 1.3-6.6), renal failure (OR 2.8, 95% 1.2-6.2), and the CGA score (OR 1.2, 95% CI 1.02-1.4 for each point of increment). The area under the receiver operating characteristic curve was 0.856 (95% CI 0.790-0.921), and the model classified 93.4% of cases correctly.

CONCLUSIONS

In our cohort of very old patients with HF, a simple CGA score predicts hospital mortality.

Differential clinical characteristics and outcome predictors of acute heart failure in elderly patients

OBJECTIVE

We determined the clinical-epidemiological characteristics and prognostic factors of early mortality and re-consultation in an elderly population attending the hospital emergency department (HED) for acute heart failure (AHF).

PATIENTS AND METHODS

A prospective, observational, non interventional study including all the patients with AHF attended in the Spanish's HED. Two groups were defined: elderly (≥ 80 years) and controls (< 80 years).

VARIABLES

demographic characteristics, comorbidity, degree of cardiac involvement, previous treatment, symptoms and signs of the AHF episode, precipitating factors, treatment in the HED and outcome.

OUTCOME VARIABLES

mortality and re-consultation within 30 days.

RESULTS

Of the 942 patients included, 455 of whom were elderly (48.3%). In this elderly population female sex, auricular fibrillation and a history of ictus and a poor functional status predominated. The type of ventricular dysfunction was unknown in 70%. No main differences in the presentation of AHF were found between the two groups. Mortality and re-consultation to the HED within 30 days were similar in both groups. While several factors were identified to be related to mortality or re-consultation in control group, in the elderly group it was more difficult to identify patients who will die or re-consult to the HED within the following 30 days. Only respiratory insufficiency on arrival to the HED was found to predict a greater probability of death (OR 3.55; CI95% 1.39-9.11).

CONCLUSIONS

AHF in elderly patients presents some differential characteristics and, most importantly, it is more difficult to identify which of these patients will die or re-consult in the short-term.

[Prognostic value of functional assessment at admission in an emergency short-stay unit]

INTRODUCTION

To determine the prognostic value of functional impairment on the final destination of elders admitted for acute medical illness to an emergency short-stay unit (ESSU).

MATERIAL AND METHODS

We performed a prospective analysis of patients aged more than 65 years old admitted to the ESSU of Hospital Clínico San Carlos in Madrid in April 2008. A protocol was designed that included epidemiologic variables (age and gender), clinical variables (reason for admission, comorbidity measured by the Charlson Index [CI]) and functional variables (previous, admission and functional decline [FD] measured with the Barthel [BI] and Lawton Indexes [LI]). The prognostic value of FD on the decision to admit patients was analyzed through ROC curves and the cut points that maximized sensitivity and specificity were determined.

RESULTS

Sixty patients were included with a mean age of 80.7 (SD 8.2) years and 71.7% were women. The reasons for admission were acute infections in 31.7%, heart failure in 23.3%, syncope in 15.0%, intestinal obstruction in 11.7%, gastrointestinal bleeding in 10.0%, and arrhythmias in 8.3%. The mean CI was 2.27 (1.45). Functional assessment was as follows: mean previous BI score: 79.25 (SD 25) and at admission: 62.92 (SD 28.19). Mean previous LI score: 4.85 (SD 2.45) and at admission: 2.98 (SD 2.42).): BI-FD: 20% (1.25-38.23), LI-FD 37.5% (16.7-70.2%). FD was found in 100% of the patients. The mean length of stay was 1.70 (SD 0.62) days. Discharge destination was home discharge in 46.7% and hospitalization unit in 53.3%. Multivariate analysis according to discharge destination (home vs hospitalization) provided the following results : BI-FI > or = 16% (OR=7.99 [1.1-60.5], p=0.037), LI-FI > or =35% (OR=19.6 [0.04-0.52], p <0.0001).

CONCLUSIONS

Patients with significant FD in the emergency room should not be admitted to an ESSU since significant FD is a prognostic factor for transfer to a conventional ward.