Age and mental health predict early device-specific quality of life in patients receiving prophylactic implantable defibrillators

Natural Language Processing for Computer-Assisted Chart Review to Assess Documentation of Substance use and Psychopathology in Heart Failure Patients Awaiting Cardiac Resynchronization Therapy

CONTEXT

Advanced heart failure (HF) patients often experience distressing psychological symptoms, frequently meeting diagnostic criteria for psychological disorders, including anxiety, depression, and substance use disorder. Patients with device-based HF therapies have added risk for psychological disorders, with consequences for their physiological functioning, including adverse cardiac outcomes.

OBJECTIVES

This study used natural language processing (NLP) for computer-assisted chart review to assess documentation of mental health and substance use in HF patients awaiting cardiac resynchronization therapy (CRT), a device-based HF therapy.

METHODS

We applied NLP to clinical notes from electronic health records (EHR) of 965 consecutive patients, with 9821 total clinical notes, at two academic medical centers between 2004 and 2015. We developed and validated a keyword library capturing terms related to mental health and substance use, while balancing specificity and sensitivity.

RESULTS

Mean age was 71.6 years (SD = 11.8), 78% male, and 87% non-Hispanic White. Of the 544 patients (56.4%) with documentation of mental health history, 9.7% had their mental health assessed and 6.6% had a plan documented. Of the 773 patients (80.1%) with documentation of substance use history, 10 (1.0%) had an assessment, and 3 (0.3%) had a plan.

CONCLUSION

Despite clinical recommendations and standards of care, clinicians are under documenting assessments and plans prior to CRT. Future research should develop an algorithm to prompt clinicians to document this content. Such quality improvement efforts may ensure adherence to standards of care and clinical guidelines.

Age, Sex, and Remote Monitoring Differences in Device Acceptance for Patients With Implanted Cardioverter Defibrillators in Canada

Background

Implantable cardioverter defibrillator (ICD) acceptance and shock anxiety are issues that clinicians should address to improve quality of life among device recipients. Previous findings have indicated that younger patients experience poorer device adjustment. The purpose of this study was to examine age and ICD-specific quality-of-life outcomes in a large sample of Canadian ICD patients. We tested the hypothesis that patient age is related to device acceptance and shock anxiety in an Alberta (Canada) ICD population.

Methods

The Florida Patient Acceptance Survey (FPAS) and Florida Shock Acceptance Survey (FSAS) were completed by ICD patients attending the Cardiac Implantable Electrical Device Clinics in Alberta. The population was dichotomized into those aged ≤ 65 years (younger) and those aged > 65 years (older). Sex, ICD shock history, and remote monitoring use were also examined.

Results

Surveys were completed by 126 younger (53 ± 11 years; 79% male) and 216 older (74 ± 6 years; 85% male) patients. Younger, compared with older, patients had greater device-related distress (P < 0.001) and more body-image concerns (P < 0.001), but no differences in return to function or positive appraisal. Younger patients reported lower total device acceptance (P = 0.001) and greater total shock anxiety (P < 0.001) compared with older patients.

Conclusions

ICD patients aged ≤ 65 years reported poorer device acceptance and greater shock anxiety than older patients. Younger patients may require targeted interventions addressing adjustment to the ICD, and impact of the ICD on body image. Moreover, education about the relatively low probability of shocks may alleviate shock anxiety in younger patients.

Living with an implantable cardiac defibrillator: a model of chronic uncertainty

Over the last two decades, the number of patients receiving implantable cardiac defibrillators (ICDs) for the prevention of sudden cardiac death has grown significantly. This growth is largely the result of broadened indication for ICD use because of the success of trials demonstrating efficacy. Early ICD indication centered on secondary prevention, which then advanced to primary prevention in high-risk patients. Nurses delivering care to these patients not only manage this complex technology but also patients' uncertainty about their survival and related psychosocial adjustment to receiving an ICD. To inform practice, theoretical models such as Mishel's (1988) uncertainty in illness model provide insight into such acute phases of illness. This article proposes expansion of the uncertainty in illness model to advance knowledge in this field for nurses caring for patients with ICD.

Development and feasibility testing of decision support for patients who are candidates for a prophylactic implantable defibrillator: a study protocol for a pilot randomized controlled trial

BACKGROUND

Patients, identified to be at risk for but who have never experienced a potentially lethal cardiac arrhythmia, have the option of receiving an implantable cardioverter defibrillator (ICD) as prophylaxis against sudden cardiac death - a primary prevention indication. In Canada, there is no clear framework to support patients' decision-making for these devices. Decision support, using a decision aid, could moderate treatment-related uncertainty and prepare patients to make well-informed decisions. Patient decision aids provide information on treatment options, risks, and benefits, to help patients clarify their values for outcomes of treatment options. The objectives of this research are: 1) develop a decision aid, 2) evaluate the decision aid, and 3) determine the feasibility of conducting a trial.

METHODS/DESIGN

A development panel comprised of the core investigative team, health service researchers, decision science experts, cardiovascular healthcare practitioners, and ICD patient representatives will collaborate to provide input on the content and format of the aid. To generate probabilities to include in the aid, we will synthesize primary prevention ICD evidence. To obtain anonymous input about the facts and content, we will employ a modified Delphi process. To evaluate the draft decision aid will invite ICD patients and their families (n = 30) to rate its acceptability. After we evaluate the aid, to determine the feasibility, we will conduct a feasibility pilot randomized controlled trial (RCT) in new ICD candidates (n = 80). Participants will be randomized to receive a decision aid prior to specialist consultation versus usual care. Results from the pilot RCT will determine the feasibility of research processes; inform sample size calculation, measure decision quality (knowledge, values, decision conflict) and the influence of health related quality of life on decision-making.

DISCUSSION

Our study seeks to develop a decision aid, for patients offered their first ICD for prophylaxis against sudden cardiac death. This paper outlines the background and methods of a pilot randomized trial which will inform a larger multicenter trial. Ultimately, decision support prior to specialist consultation could enhance the decision-making process between patients, physicians, and families, associated with life-prolonging medical devices like the ICD.

TRIAL REGISTRATION

ClinicalTrials.gov: NCT01876173.

Psychiatric disorders and quality of life in patients with implantable cardioverter defibrillators: a systematic review

OBJECTIVE

To systematically review the literature with regard to psychiatric disorders and quality of life in patients with an implantable cardioverter defibrillator.

DATA SOURCES

Research was conducted in 3 databases (ISI Web of Science, PubMed, and PsycINFO) using the terms implantable, cardioverter, defibrillator, quality of life, psych *, anxiety, and depression.

STUDY SELECTION

The search yielded 1,399 references. Non-English and repeated references were excluded. After abstract analysis, 42 references were recovered for full-text reading, and 25 articles were selected for this review.

DATA EXTRACTION

Research took place in April 2012, and no time restriction was placed on any of the database searches. Review or theoretical articles were excluded, and only clinical trials and epidemiologic studies were selected for this review.

RESULTS

A systematic review of the literature revealed mostly observational prospective cohort studies followed by cross-sectional observational studies and randomized clinical trials. Few studies included in the review were observational retrospective cohort or case-control studies. There are prominent signs and symptoms of anxiety and depression in patients with an implantable cardioverter defibrillator. Disorders include phobic anxiety, posttraumatic stress disorder, panic disorder, somatoform disorder, agoraphobia, and depression. Quality of life in the physical, social, and psychological domains is affected and is related to the intensity and the frequency of the device's electrical discharge.

CONCLUSIONS

Work regarding psychiatric comorbidity in patients with an implantable cardioverter defibrillator has shown that anxiety and depression are common. The patients and their families should be informed by their doctors that the presence of the device minimizes risk of sudden death and allows them to have a normal life.