Relation between hyponatraemia and falls by acute hospitalised patients: A case-control study.

AIMS AND OBJECTIVES: To investigate the possible association between hyponatremia and falls, in a sample of hospitalised adult patients. BACKGROUND: In-hospital falls are a problem of major importance, provoking a significant decline in the quality of life of many patients. Recent studies have identified a relationship between such falls and the presence of hyponatremia. DESIGN: Analytical retrospective observational case-control study. METHODS: The study population consisted of hospitalised patients who had suffered an in-hospital fall during the period 2014-2016. For each case, two controls who had not suffered any such fall were recruited. These cases and controls were matched according to gender, age, hospitalisation unit and date of admission. Study data were obtained from the hospital's record of falls, regarding the patients' socio-demographic factors, physical and psychological conditions and blood levels of sodium, potassium, urea and creatinine. The study is reported in accordance with STrengthening the Reporting of OBservational studies in Epidemiology guidelines. RESULTS: The study sample consisted of 555 patients (185 cases and 370 controls). Hyponatraemia was detected in 57 cases (30.8%). A statistically significant relationship was found between the presence of hyponatraemia and the occurrence of falls: OR = 2.04. Other risk factors for falls were hypercreatinaemia OR 2.49, hyperuraemia OR 1.82, disorientation, need for ambulatory assistance and longer hospital stay. CONCLUSIONS: From the study findings, we conclude that hyponatraemia is a predictor of falls by acute hospitalised patients. Further research is needed on the relationship between hypercreatinaemia, hyperuraemia and falls. RELEVANCE TO CLINICAL PRACTICE: The assessment of risk factors for falls, such as hyponatraemia, can alert us to the possibility of this event occurring and facilitate the implementation of preventive measures. This parameter should be included as a significant new factor in assessment instruments designed to assess the risk of falls, thus enhancing the reliability and diagnostic validity of these instruments.

Health-Related Quality of Life and Use of Hospital Services by Patients with Heart Failure and Their Family Caregivers: A Multicenter Case-Control Study.

BACKGROUND: Heart failure (HF) causes high rates of hospital admissions. It is known that disease progression impacts the health-related quality of life (HRQoL) of both patients and caregivers, yet to date, this finding is based on cross-sectional studies with limited samples. OBJECTIVES: The study aim is to analyze the relationship between HF patients' use of hospital services (a proxy for disease progression) and the HRQoL of their family caregivers. METHODS: This work is a multicenter nested case-control study on a population of patients admitted to hospitals in southern Spain due to heart failure. The sample comprised 530 patient-caregiver dyads. Hospital admission data were retrospectively collected for the 5 years prior to inclusion in the study. Bivariate analyses and multivariate logistic regression were used to determine associations between patient deterioration and caregivers' quality of life. RESULTS: Patients' use of hospital services was associated with worsened quality of life for family caregivers, with an overall OR of 1.48 (95% CI: 1.23-1.79). A positive correlation was found between patients' perceptions of their physical health and the perceived mental health of caregivers (r = 0.127, p = 0.004) and between the perceived mental health of both (r = 0.291; p <0.0001). CONCLUSIONS: Greater use of hospital services by patients with HF is an independent predictor of deterioration of family caregivers' HRQoL. The physical and mental components of patients' and their family caregivers' HRQoL interact and influence each other. Additional factors, such as the nature and intensity of care provided, also determine the worsening of a family caregiver's HRQoL. CLINICAL RELEVANCE: These results can be used to identify family caregivers of people with heart failure at risk of suffering a deterioration in their health-related quality of life. Increased use of hospital services is an independent predictor of the deterioration of the family caregivers' health-related quality of life. Since clinical nurses are the main provider who gives support and education to family caregivers, they should be alert to this situation and individualize interventions to prevent this deterioration.

Overestimation of hours dedicated to family caregiving of persons with heart failure.

AIMS: The aim of this study is to profile the family caregivers of people living with heart failure, to determine the perceived and real time devoted to daily care and to identify the factors associated with caregivers' overestimation of time dedicated to care. BACKGROUND: The time spent by family caregivers on daily care is related to overload, but there are differences between real and perceived time spent. The reason for this difference is unknown, as is its impact on the caregiver. DESIGN: Multicentre, cross-sectional study. METHODS: This study forms part of a longitudinal, multicentre, ambispective cohort investigation. The study population was composed of 478 patient-family caregiver dyads and the data were collected over 2 years from 2014 - 2016. RESULTS: The mean time perceived to be spent on daily care was 8.79 hr versus a real value of 4.41 hr. These values were positively correlated. A significant correlation was also found between the overestimation of hours spent and the age of the caregiver, the duration of the caregiving relationship and the number of people providing support and with the patient's level of dependence and self-care. CONCLUSION: The overestimation of time dedicated to care seems to be related to patients' and caregivers' characteristics, such as functional status, caregiver burden, age and cohabitation. These patterns should be considered by nurses when carrying out assessment and care planning with these patients and their caregivers.

Instruments for assessing the risk of falls in acute hospitalized patients: a systematic review and meta-analysis.

BACKGROUND: Falls are a serious problem for hospitalized patients, reducing the duration and quality of life. It is estimated that over 84% of all adverse events in hospitalized patients are related to falls. Some fall risk assessment tools have been developed and tested in environments other than those for which they were developed with serious validity discrepancies. The aim of this review is to determine the accuracy of instruments for detecting fall risk and predicting falls in acute hospitalized patients. METHODS: Systematic review and meta-analysis. Main databases, related websites and grey literature were searched. Two blinded reviewers evaluated title and abstracts of the selected articles and, if they met inclusion criteria, methodological quality was assessed in a new blinded process. Meta-analyses of diagnostic ORs (DOR) and likelihood (LH) coefficients were performed with the random effects method. Forest plots were calculated for sensitivity and specificity, DOR and LH. Additionally, summary ROC (SROC) curves were calculated for every analysis. RESULTS: Fourteen studies were selected for the review. The meta-analysis was performed with the Morse (MFS), STRATIFY and Hendrich II Fall Risk Model scales. The STRATIFY tool provided greater diagnostic validity, with a DOR value of 7.64 (4.86 - 12.00). A meta-regression was performed to assess the effect of average patient age over 65 years and the performance or otherwise of risk reassessments during the patient's stay. The reassessment showed a significant reduction in the DOR on the MFS (rDOR 0.75, 95% CI: 0.64 - 0.89, p = 0.017). CONCLUSIONS: The STRATIFY scale was found to be the best tool for assessing the risk of falls by hospitalized acutely-ill adults. However, the behaviour of these instruments varies considerably depending on the population and the environment, and so their operation should be tested prior to implementation. Further studies are needed to investigate the effect of the reassessment of these instruments with respect to hospitalized adult patients, and to consider the real compliance by healthcare personnel with procedures related to patient safety, and in particular concerning the prevention of falls.

Instruments for assessing the risk of falls in acute hospitalized patients: a systematic review protocol.

AIM: The purpose of this article is to present the research protocol of a systematic review about fall risk assessment tools in acute hospitalized patients. BACKGROUND: Various risk assessment tools for falls have been developed, but with uncertainties derived from validation in heterogeneous environments and variations in their sensitivity, specificity and predictive validity. DESIGN: Systematic review and meta-analysis. METHODS: Two independent reviewers will extract data in a blinded process. Quality of studies will be assessed using various standardized instruments. A meta-analysis will be performed if applicable. For all studies, sensitivity, specificity, positive and negative predictive values, together with the positive and negative likelihood ratios and Youden index will be calculated. The diagnostic odds ratio of the studies and the hierarchical summary Relative Operating Characteristic curve and bivariate model will be applied. Calculations will be made from random effects models. Forest-plot diagrams for sensitivity and specificity and likelihood ratios, in addition to Cochrane's Q test and the I(2) statistic, will be calculated. Funding of the review was confirmed in December 2010. DISCUSSION: The results of this review will help to clarify some uncertainties provoked by earlier research findings and enable informed choice of a validated, reproducible instrument for assessing the risk of falls by hospital patients, so that preventive action may be taken to minimize this risk.