Prospective memory and chronic heart failure

Habota, Tina; Cameron, Jan; McLennan, Skye N.; Ski, Chantal F.; Rendell, Peter G.

doi:10.1186/1471-2261-13-63

Cited by 4 publications

(5 citation statements)

References 49 publications

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“…The study was approved by the Human Research Ethics Committees at Eastern Health and the Australian Catholic University. A detailed study protocol has been described in Habota et al (2013).…”

Section: Methodsmentioning

confidence: 99%

“…It is also sensitive to differences between clinical and normal populations (Rendell & Henry, 2009). In the present study (for detailed description see, Habota et al, 2013), participants used a computer mouse to move a token around a computerized representation of a board-game board after rolling a die. Each lap of the board represented one virtual day.…”

Section: Prospective Memorymentioning

confidence: 99%

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Prospective Memory Impairment in Chronic Heart Failure

Habota

McLennan

Cameron

et al. 2015

J Int Neuropsychol Soc

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Although cognitive deficits are common in patients with chronic heart failure (CHF), no study to date has investigated whether these deficits extend to the capacity to execute delayed intentions (prospective memory, PM). This is a surprising omission given the critical role PM plays in correctly implementing many important CHF self-care behaviors. The present study aimed to provide the first empirical assessment of PM function in people with CHF. The key dependent measure was a laboratory measure of PM that closely simulates PM tasks in daily life -Virtual Week. A group comparison design was used, with 30 CHF patients compared to 30 demographically matched controls. Background measures assessing executive functions, working memory, and verbal memory were also administered. The CHF group exhibited significant PM impairment, with difficulties generalizing across different types of PM tasks (event, time, regular, irregular). The CHF group also had moderate deficits on several of the background cognitive measures. Given the level of impairment remained consistent even on tasks that imposed minimal demands on memory for task content, CHF-related difficulties most likely reflects problems with the prospective component. However, exploratory analyses suggest that difficulties with retrospective memory and global cognition (but not executive control), also contribute to the PM difficulties seen in this group. The implications of these data are discussed, and in particular, it is argued that problems with PM may help explain why patient engagement in CHF self-care behaviors is often poor. (JINS, 2015, 21, 1-10)

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Section: Methodsmentioning

confidence: 99%

Section: Prospective Memorymentioning

confidence: 99%

Prospective Memory Impairment in Chronic Heart Failure

Habota

McLennan

Cameron

et al. 2015

J Int Neuropsychol Soc

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“… The brief Virtual Week assessment , which involves 2 ‘virtual’ days of the computerised board game, will assess event-based and time-based PM tasks. Based on our previous study with HF patients [ 55 ], the brief version of Virtual Week will take 30 to 45 minutes to complete. The Naturalistic PM task assesses 2 types of time-based PM tasks: 1) an appointment task at a set time of day and 2) one requiring monitoring a short interval of time.…”

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

“…The probable requirement to undertake non-parametric statistical analyses (due to non-Gaussian distributed data) has been factored into study power calculations in addition to a 20% intervention refusal rate and loss to follow-up. The sample size for the comparison of baseline cognitive performance (in particular PM) between 60 HF patients and a healthy age-matched control group has been based on previous studies [ 55 , 74 ]. As such, the sample size has the power to detect significant differences with moderate effect sizes.…”

Section: Methodsmentioning

confidence: 99%

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PROspective MEmory Training to improve HEart failUre Self-care (PROMETHEUS): study protocol for a randomised controlled trial

Cameron

Rendell

Ski

et al. 2015

Trials

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BackgroundCognitive impairment is seen in up to three quarters of heart failure (HF) patients and has a significant negative impact on patients’ health outcomes. Prospective memory, which is defined as memory to carry out future intentions, is important for functional independence in older adults and involves application of multiple cognitive processes that are often impaired in HF patients. The objective of this study is to examine the effects of prospective memory training on patients’ engagement in HF self-care and health outcomes, carer strain and quality of life.Methods/designThe proposed study is a randomised, controlled trial in which 200 patients diagnosed with HF, and their carers will be recruited from 3 major hospitals across Melbourne. Eligible patients with HF will be randomised to receive either: 1) The Virtual Week Training Program - a computerised prospective memory (PM) training program (intervention) or 2) non-adaptive computer-based word puzzles (active control). HF patients’ baseline cognitive function will be compared to a healthy control group (n = 60) living independently in the community. Patients will undergo a comprehensive assessment of PM, neuropsychological functioning, self-care, physical, and emotional functioning. Assessments will take place at baseline, 4 weeks and 12 months following intervention. Carers will complete measures assessing quality of life, strain, perceived control in the management of the patients’ HF symptoms, and ratings of the patients’ level of engagement in HF self-care behaviours.DiscussionIf the Virtual Week Training Program is effective in improving: 1) prospective memory; 2) self-care behaviours, and 3) wellbeing in HF patients, this study will enhance our understanding of impaired cognitive processes in HF and potentially is a mechanism to reduce healthcare costs.Trial registrationAustralian New Zealand Clinical Trials Registry #366376; 27 May 2014. https://www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=366376&isClinicalTrial=False.

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