Thirst in heart failure : A systematic literature review

Aims: Although patients with heart failure (HF) may suffer from severe thirst, this has received little attention in scientific studies. A systematic literature review was conducted to identify and analyse data on thirst in HF

Thirst response to acute hypovolaemia in healthy women and women prone to vasovagal syncope

The present study measured self-perceived thirst and plasma angiotensin II (ATII) concentrations during graded hypovolaemic stress, induced by lower body negative pressure (LBNP), to elucidate the dependence of thirst on haemodynamics. A total of 24 women aged between 20 and 36 (mean age, 23) years rated their thirst on a visual analogue scale, graded from 0 to 100, when LBNP of 20,30 and 40 mm Hg was applied. Half of the women had a history of vasovagal syncope (VVS). The results showed that the thirst score increased three-fold when LBNP was applied, from 11 (median; 25th-75th percentiles, 9-25) to 34 (27-53; P andlt; 0.001). The women in the VVS group had twice as great an increase as those without a history of VVS (P andlt; 0.02). The plasma ATII concentration increased significantly in response to LBNP, both in the VVS group and in the control group, but the changes did not correlate with thirst. Application of LBNP decreased systolic and mean arterial pressures, cardiac output and pulse pressure (P andlt; 0.001 for all), but thirst correlated only with increase in heart rate and, independently, with reduction of mean arterial pressure. In conclusion, thirst and ATII increase in response to hypovolaemic stress, but are not statistically related. The haemodynamic parameter that was most strongly related to thirst was tachycardia.Funding Agencies|Sodertalje Sjukhus AB, Stockholm County Council||Futurum - the Academy of Health Care||Jonkoping County Council||Medical Research Council of Southeast Sweden||</p

Thirst response to acute hypovolaemia in healthy women and women prone to vasovagal syncope

The present study measured self-perceived thirst and plasma angiotensin II (ATII) concentrations during graded hypovolaemic stress, induced by lower body negative pressure (LBNP), to elucidate the dependence of thirst on haemodynamics. A total of 24 women aged between 20 and 36 (mean age, 23) years rated their thirst on a visual analogue scale, graded from 0 to 100, when LBNP of 20,30 and 40 mm Hg was applied. Half of the women had a history of vasovagal syncope (VVS). The results showed that the thirst score increased three-fold when LBNP was applied, from 11 (median; 25th-75th percentiles, 9-25) to 34 (27-53; P andlt; 0.001). The women in the VVS group had twice as great an increase as those without a history of VVS (P andlt; 0.02). The plasma ATII concentration increased significantly in response to LBNP, both in the VVS group and in the control group, but the changes did not correlate with thirst. Application of LBNP decreased systolic and mean arterial pressures, cardiac output and pulse pressure (P andlt; 0.001 for all), but thirst correlated only with increase in heart rate and, independently, with reduction of mean arterial pressure. In conclusion, thirst and ATII increase in response to hypovolaemic stress, but are not statistically related. The haemodynamic parameter that was most strongly related to thirst was tachycardia.Funding Agencies|Sodertalje Sjukhus AB, Stockholm County Council||Futurum - the Academy of Health Care||Jonkoping County Council||Medical Research Council of Southeast Sweden||</p

Trajectory of thirst intensity and distress from admission to 4-weeks follow up at home in patients with heart failure

Background: Patients with heart failure (HF) can suffer from increased thirst intensity and distress. Trajectories of thirst intensity and distress from hospital to home are unclear. The aim of this study was to describe thirst intensity and distress trajectories in patients from the time of hospital admission to 4 weeks after discharge, and describe trajectories of thirst intensity and distress by patients characteristics (gender, age, body mass index [BMI], plasma urea, anxiety, and depression). Patients and methods: In this observational study, data were collected from patients with HF (n=30) at hospital admission, discharge, and at 2 and 4 weeks after discharge. Thirst intensity (visual analog scale, 100 mm) and distress (Thirst Distress Scale-HF, score 9-45) were used. Trajectories were examined using growth modeling. Results: Trajectory of the thirst intensity was significantly different, for patients with low and high thirst intensity levels (median cut-off 39 mm), from admission to 4 weeks follow up (thirst increased and decreased, respectively). Patients with high level of thirst distress (median score amp;gt;22) at admission, having fluid restriction and women continued to have higher thirst distress over time. Patients feeling depressed had higher thirst intensity over time. There were no differences in the trajectories of thirst intensity and distress by age, BMI, plasma urea, and anxiety. Conclusion: Intensity and distress of thirst, having fluid restriction, and feeling depressed at the admission were critical in predicting the trajectory of thirst intensity and distress after discharge to home in patients with HF. Effective intervention relieving thirst should be provided before their discharge to home

Development and psychometric evaluation of the Thirst Distress Scale for patients with heart failure

Background: Patients with heart failure can experience thirst distress. However, there is no instrument to measure this in patients with heart failure. The aim of the present study was to develop the Thirst Distress Scale for patients with Heart Failure (TDS-HF) and to evaluate psychometric properties of the scale. Methods and results: The TDS-HF was developed to measure thirst distress in patients with heart failure. Face and content validity was confirmed using expert panels including patients and healthcare professionals. Data on the TDS-HF was collected from patients with heart failure at outpatient heart failure clinics and hospitals in Sweden, the Netherlands and Japan. Psychometric properties were evaluated using data from 256 heart failure patients (age 7211 years). Concurrent validity of the scale was assessed using a thirst intensity visual analogue scale. Patients did not have any difficulties answering the questions, and time taken to answer the questions was about five minutes. Factor analysis of the scale showed one factor. After psychometric testing, one item was deleted. For the eight item TDS-HF, a single factor explained 61% of the variance and Cronbach's alpha was 0.90. The eight item TDS-HF was significantly associated with the thirst intensity score (r=0.55, p Conclusion: The eight-item TDS-HF is valid and reliable for measuring thirst distress in patients with heart failure

Fluid restriction in patients with heart failure:how should we think?

Background/aim: Fluid restriction has long been considered one of the cornerstones in self-care management of patients with heart failure. The aim of this discussion paper is to discuss fluid restriction in heart failure and propose advice about fluid intake in heart failure patients. Results: Although there have been seven randomised studies on fluid restriction in heart failure patients, the effect of fluid restriction on its own were only evaluated in two studies. In both studies, a stringent fluid restriction compared to a liberal fluid intake was not more beneficial with regard to clinical stability or body weight. In the other studies fluid restriction was part of a larger study intervention including, for example, individualised dietary recommendations and follow-up by telephone. Thus, the effect of fluid restriction on its own has been poorly evaluated. Conclusion: Fluid restriction should not be recommended to all heart failure patients. However, temporary fluid restriction can be considered in decompensated heart failure and/or patients with hyponatremia. Tailored fluid restriction based on body weight (30 ml/kg per day) seems to be most reasonable. To increase adherence to temporary fluid restriction, education, support and planned evaluations can be recommended

Thirst and factors associated with frequent thirst in patients with heart failure in Spain

Background: Thirst is a troublesome symptom in patients with Heart Failure (HF) and one that might be perceived differently in different countries depending on climate, food and cultural habits. The aims of the study were to describe thirst frequency, duration and intensity and to identify factors associated with frequent thirst in outpatients with HF in a Mediterranean country. Methods: Data was collected in a cross-sectional study involving 302 patients diagnosed with HF (age 67 +/- 12 years, 74% male, LVEF 43%+/- 14) in Spain on thirst frequency and duration, and thirst intensity by patient self-report (VAS, 0-100 mm). Clinical variables were collected from the medical files. Regression analysis was used to identify factors independently associated with frequent thirst. Results: Of all the patients, 143 (47%) were frequently thirsty, and their median (25th and 75th percentiles) thirst intensity was higher (VAS 50 mm [20-67] vs 7 [0-20], p &amp;lt;.001). Their thirst lasted longer compared to those who never/sometimes were thirsty (p &amp;lt; .001). Less treatment with angiotensin receptor blockers (Odds Ratio [OR] 2.72; 95% Confidence Interval [CI] 1.33-5.58), diuretics &amp;gt;40 mg/day (OR 1.92; 95% CI 1.02-3.64), depression (OR 2.99; CI 1.17-7.62), male gender (OR 1.98; CI 1.08-3.64) and worse New York Heart Association functional class (OR 1.92; 95% CI 1.05-3.52) were independently associated with frequent thirst. Conclusions: About half of patients with HF and fluid restriction experienced frequent thirst in a Mediterranean area of Spain, and their thirst duration and intensity were significantly increased. Frequent thirst was associated with demographic, clinical and therapeutic variables. The results may help to identify patients with a higher risk of frequent thirst and might suggest therapeutic changes in order to diminish this troublesome symptom. (C) 2020 The Authors. Published by Elsevier Inc

Assistant nurses &amp; apos; experiences of thirst and ethical dilemmas in dying patients in specialized palliative care-A qualitative study

AimsTo describe assistant nurses experiences of thirst and ethical challenges in relation to thirst in terminally ill patients in specialized palliative care (PC) units.DesignA qualitative, reflexive thematic design with an inductive analysis was used.MethodsData were collected during November 2021-January 2023. Twelve qualitative interviews with assistant nurses working in five different specialized PC units in different hospitals in Sweden were conducted. The interviews were transcribed verbatim and analysed with a reflexive thematic analysis. The study was guided by the Standards for Reporting Qualitative Research (SRQR).ResultsTwo main themes were found in this study. (1) A world of practice for thirst relief where assistant nurses present a task-oriented world where the knowledge of thirst is an experience-based unspoken knowledge where mainly routines rule. (2) Ethical challenges presents different ethical problems that they meet in their practice, such as when patients express thirst towards the end of their life but are too severely ill to drink or when they watch lack of knowledge in the area among other health professionals.ConclusionThirst in dying patients is a neglected area that assistant nurses work with, without communicating it. Their knowledge of thirst and thirst relief are not expressed, seldom discussed, there are no policy documents nor is thirst documented in the patients record. There is a need for nurses to take the lead in changing nursing practice regarding thirst.Patient or Public ContributionNo patient or public contribution.ImpactIn palliative care, previous studies have shown that dying patients might be thirsty. Assistant nurses recognize thirst in dying patients, but thirst is not discussed in the team. Nurses must consider the patients fundamental care needs and address thirst, for example in the nursing process to ensure patients quality of life in the last days of life.Reporting MethodThe study was guided by the SRQR.What does this Article Contribute to the Wider Global Clinical Community?Thirst is a distressing symptom for all humans. However, when a patient is dying, he or she loses several functions and can no longer drink independently. The knowledge from this article contributes to our understanding of current practice and shows an area that requires immediate attention for the improvement of fundamental palliative care delivery.Funding Agencies|Sjobergstiftelsen [20210114:6]</p