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Original Research
A Systematic Review of Telehealth in Palliative Care: Caregiver Outcomes
Yongqiang Zheng, MA, MSSW,
1
Barbara A. Head, PhD, CHPN, ACSW, FPCN,
2
and Tara J. Schapmire, PhD, MSSW, CSW, CCM, OSW-C
2
1
Kent School of Social Work and
2
School of Medicine,
University of Louisville, Louisville, Kentucky.
Abstract
Objective: Telehealth interventions have proven efficacy in
healthcare, but little is known about the results of such
interventions in palliative care. We conducted a systematic
review to evaluate caregiver outcomes related to palliative
telehealth interventions. Materials and Methods: We
searched multiple databases for articles published between
January 2003 and January 2015 related to telehealth in
palliative care. Two hundred twenty-one
AU1 articles were
considered; nine of these met study inclusion criteria. Data
on study design, population, interventions, methods, out-
comes, conclusions, and methodological quality were ex-
tracted and evaluated by three investigators. Results: Of the
nine studies, five measured caregiver quality of life, three
measured caregiver anxiety, and two measured caregiver
burden. All the studies measuring caregiver quality of
life showed no significant difference after telehealth inter-
ventions. The caregiver anxiety score decreased after the
intervention in two studies, and one study reported signif-
icantly reduced caregiver burden. Although feasibility of or
caregiver satisfaction with the telehealth intervention was
not the focus of this review, most studies reported such
findings. Of the nine studies, the majority were rated as
having moderate quality using the Cochrane Collaboration’s
tool for assessing risk of bias. Conclusions: This systematic
review suggests there is evidence of overall satisfaction in
caregivers who undergo a telehealth intervention, but out-
comes reported were often not substantial. Methodological
flaws and small sample sizes negatively affected study
quality. More rigorous research to test and evaluate such
palliative interventions is needed.
Key words: telehealth, palliative care, hospice care, caregiver,
intervention
Introduction
Telehealth interventions have become widely accepted
as a means for assessment, education, and disease
management in healthcare systems around the world.
Such interventions overcome geographical chal-
lenges while providing convenient, immediate responses to
patients and caregivers. Much has been published related to
the value of telehealth interventions, and new journals have
emerged devoted totally to telehealth and telemedicine.
However, there are few studies evaluating palliative telehealth
interventions for palliative care patients or their caregivers.
The vast majority of telehealth interventions have been
directed toward chronic diseases such as diabetes,
1,2
heart
failure,
3,4
and chronic obstructive pulmonary disease,
5
and
the telehealth strategy is most often focused on preventing,
managing, or improving the condition. Although one might
argue that managing a chronic condition is palliative care,
palliation has not been the stated goal in most telehealth in-
terventions. Therefore, little is known about the value of tel-
ehealth that is directed toward the provision of palliative care.
When the patient is seriously ill or dying, the caregiver
assumes the responsibility for managing care, receiving in-
formation, and communicating with professional clinicians
and support staff.
6,7
Because the family caregiver is central to
the patient’s care and assumes major responsibility for the
day-to-day management, it is recommended that supportive
interventions be directed toward the caregiver when palliative
care is the focus.
8
In order to develop a comprehensive perspective on the
impact of palliative telehealth interventions on caregivers, we
conducted a systematic review of the literature.
Materials and Methods
SEARCH STRATEGY
The literature search was performed using the following
electronic databases: Academic Search Premier, Ageline, CINAHL,
Medline, Psychology and Behavioral Science Collection, Psych
INFO, Sociological Collection, and TOPIC Search. Search terms
used were telehealth and palliative care, telehealth and ad-
vanced cancer, telehealth and hospice, and telehealth and
chronic illness. AU2
The term telemedicine was intentionally
not used as this generally refers to telehealth education and
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DOI: 10.1089/tmj.2015.0090 ªMARY ANN LIEBERT, INC. VOL. 22 NO. 4 APRIL 2016 TELEMEDICINE and e-HEALTH 1
communication among healthcare providers; however, tele-
health and telemedicine are used by some interchangeably,
and 32 telemedicine articles were included in the search
results.
INCLUSION CRITERIA
To be included in this review, an article had to meet the
following criteria:
1. The intervention was focused on patients receiving
palliative or end-of-life care for a serious condition (i.e.,
advanced disease, end-stage disease).
2. The study reported caregiver outcomes using either
qualitative or quantitative measures.
3. The study was published in English between January
2003 and January 2015.
Reports that described an intervention or evaluated the
feasibility of an intervention but did not report caregiver
outcomes were excluded, as were single case studies. Studies
focused on chronic conditions not considered to be advanced
or end stage without a stated purpose of providing palliative
or end-of-life care were also excluded.
STUDY QUALITY EVALUATION
The Cochrane Collaboration’s tool for assessing risk of bias
in randomized trials was used to evaluate study rigor and
quality. This tool evaluates study performance on six domains
of bias: selection bias, performance bias, detection bias, at-
trition bias, reporting bias, and other bias.
9
Developed by the
Cochrane Collaboration’s methods groups in 2005, this tool
is used to identify flaws in design, conduct, analysis, and
reporting that can cause the effect of an intervention to be
underestimated or overestimated.
All three authors reviewed each article to be included and
participated in extracting descriptive information for
T1 Table 1.
Each also evaluated risk of bias independently. The authors
then consulted to develop consensus regarding Table 1 and
study quality evaluation. The PRISMA Statement for reporting
systematic reviews
10
was used to structure our analysis.
Results
STUDY INCLUSION
One hundred eighty-six articles were identified using the
search criteria described above. Another 35 were identified
through supplemental searches, including review of refer-
ences cited in each relevant article. Of the 221 considered
articles, 212 were excluded for various reasons (
F1 Fig. 1).
Twenty-four articles and several of the systematic reviews
included in the search results were directed toward chronic
disease management without a documented focus on ad-
vanced disease, palliative care, or end of life and were ex-
cluded from the final results. Fifty-six of the articles described
interventions but did not report outcomes. Table 1 displays the
nine studies included and describes the design, population,
intervention, outcome measurement, significant results of
each, and study quality rating.
STUDY QUALITY/RIGOR
Using the Cochrane Collaboration’s tool for assessing risk of
bias, the nine studies were categorized into three quality/rigor
levels: high, moderate, and low, with low risk of bias indicating
high quality/rigor ( F2
Fig. 2). A study was considered high quality/
rigor when it met at least five AU3
of the seven criteria for low risk of
bias (>75%), a study was determined as moderate quality/rigor
if it met between one and four of the seven criteria for low risk
of bias (25–75%), and a study was determined to be a low
quality/rigor study if it met none of the seven criteria for low
risk of bias (<25%). Of the nine studies, the majority (77.8%)
scored as moderate. Only two of the nine studies reported a
randomized process of participant recruitment and allocation,
and none reported using a process of blinding participants.
However, all of them described the completeness of their out-
come data reporting for main outcome measures.
PATIENT CHARACTERISTICS
Of the nine studies, four recruited patients from local hos-
pice programs,
11–14
whereas two recruited from palliative care
programs.
15,16
Patients in one study were from a pediatric
palliative care program.
17
One study recruited patients with
heart failure from cardiac care programs,
18
and one recruited
patients from cancer centers.
19
CAREGIVER CHARACTERISTICS
The caregiver samples ranged from 8
15
to 217
19
participants.
All of the participants were adult caregivers over 18 years of
age. Caregivers’ relationships to the patient included spouses/
partners, parents, children, and others (siblings, grandchildren,
daughters-in-law) to the patients, although three studies did
not report the type of relationship.
12,13,15
The caregivers were
from various locations, including both urban and rural areas.
Five studies took place in the United States,
11–14,19
two in
Australia,
15,17
one in Taiwan,
18
and one in Canada.
16
MEASUREMENTS AND DATA COLLECTION METHODS
Of the nine studies, five measured the caregiver quality of life
using various scales, including Caregiver Quality of Life Index-
Revised,
11–13
Quality of Life in Life Threatening Illness-Family
instrument,
17
and the Medical Outcome 36-Item Short-Form
ZHENG ET AL.
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2 TELEMEDICINE and e-HEALTH APRIL 2016 ªMARY ANN LIEBERT, INC.
Table 1. Systematic Review Data Extraction Form
REFERENCE
(YEAR) STUDY DESIGN POPULATION INTERVENTION
OUTCOME:
MEASUREMENT
SIGNIFICANT RESULTS/
CONCLUSIONS
STUDY
QUALITY
Bradford et al.
17
(2012)
Prospective exploratory cohort
study; control or intervention
group assignment based on
primary caregiver preference
or access to Internet
14 primary caregivers of children
(0-18 years old) diagnosed with a
life-limiting condition, recruited
from a pediatric palliative care
program in Brisbane, Australia
Intervention group received usual care
supplemented with home
telehealth consultations; control group
received usual care.
Caregiver QOL: 16-item QOLLTI-F High attrition due to patient death. No difference
in QOLLTI-F between intervention and control.
Caregivers equally satisfied regardless of home
telehealth program participation.
Moderate
Oliver et al.
11
(2010)
Sequential mixed method
two-phase design (Phase 1
serving as historical
comparison for Phase 2), using
repeated measures
75 caregivers, (predominantly
female, white) caring for hospice
patients from two rural hospice
programs in the Midwest of the
United States
Phase 1 participants received
traditional hospice care.
Videophones were used to connect the
Phase 2 caregivers with the interdisci-
plinary team meeting,
allowing them to have a visual image
of the team as well as
two-way conversation.
Perception of pain
management: CPMQ
Caregiver QOL: CQLI-R
Anxiety: CAI
Hospice patient QOL: HQLI
Primary: CPMQ/HQLI
Secondary: CAI/CQLI-R
The CPMQ subscale scores of
‘‘tolerance’’ and ‘‘stoicisim’’ showed significant
association with the phase of the study. No
significant differences were found between
baseline and last follow-up on HQLI, CPMQ total
scores, or CQLI-R. Intervention was seen as a
promising way to improve hospice care,
especially pain management. HQLI proved
impractical for study use. Videophone technology
was a feasible way to overcome traditional
barriers preventing caregivers’ participation in
meetings.
Moderate
Chiang et al.
12
(2012)
Two-group nonrandomized
pretest–posttest design. The
intervention group had to be
able to pay for telehealth
equipment and support.
30 patients with advanced heart
failure and their primary
caregivers, recruited from several
medical institutions in Taiwan
Experimental group subjects were
trained by the telenursing specialist to
measure patients’ physiological pa-
rameters at home and to upload the
data to the telehealth center via the
telehealth device. Caregivers also re-
ceived 24-h telehealth support. The
comparison group caregivers received
traditional instruction.
Caregiver burden: Chinese
version of CBI
Caregiver stress: MSS
Family functioning:
Chinese version of FFFS
The intervention group experienced significantly
reduced family caregiver burden, improved
mastery of stress, and improved family function.
Telehealth care can improve caregiver outcomes.
Moderate
Chih et al.
19
(2012)
Pooled analysis of two
randomized trials
217 advanced-stage lung, breast,
and prostate cancer patients and
their adult caregivers were
recruited at five outpatient
oncology clinics in the United
States.
Caregivers received access to CHESS. A
second group (n=110) had access the
CHESS plus CR, an online symptom-
reporting system,
notifying clinicians of symptom
distress. Clinicians received e-mail
alerts when symptom distress above a
predetermined threshold was
reported.
Caregiver preparedness:
4-item Caregiver Preparedness
Scale, a subscale of the Family
Care Inventory
Caregiver physical burden:
4-item Caregiver Physical Burden
Scale, a subscale from the CBI
Caregiver negative mood: subset
of negative mood items from
SV-POMS
Caregivers in the CHESS +CR group reported less
negative mood than those in the CHESS-only
group. Groups were not significantly different on
caregiver preparedness and physical burden at
either time point. Caregivers may experience less
emotional distress due to timely communication
of caregiving needs.
Moderate
Phillips et al.
15
(2008)
Mixed-methods analysis of
multiple data sources. No
comparison group
8 caregivers from a rural pallia-
tive care program in Australia
An AHTSS was provided by generalist
nurses.
Data sources included key
informant consultations, review
of case notes, interviews with
stakeholders, meeting minutes,
quality assurance activities, and
audits of call sheets.
The average duration of the call was 12.35 min.
The AHTSS is an efficient and effective strategy in
alleviating distress of underserved rural
caregivers and is highly valued by caregivers.
Low
continued /
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Table 1. Systematic Review Data Extraction Form continued
REFERENCE
(YEAR) STUDY DESIGN POPULATION INTERVENTION
OUTCOME:
MEASUREMENT
SIGNIFICANT RESULTS/
CONCLUSIONS
STUDY
QUALITY
Demiris et al.
12
(2007)
Pilot study. Feasibility testing.
Pre-/postintervention survey
design, with noncomparison
group
12 caregivers recruited from two
outpatient hospice programs:
one in a rural area and one in an
urban area of Missouri; 9 females
and 3 males
A videophone was installed at each
patient’s home to communicate
caregivers’ issues and problems.
Anxiety: STAI
QOL: CQLI-R
Caregiver perceptions were
assessed through research
assistants’ observation journal,
caregiver comments, and
informal interviews with selected
caregivers.
STAI score significantly decreased after the
intervention. Differences in QOL were not
statistically significant. Caregivers had an overall
positive perception of the videophone tool, found
it easy to use, and saw benefit in the visual
communication with hospice staff.
Moderate
Stern
16
(2008) Mixed-method case study;
utilization data and qualitative
analysis of interviews,
observations, and nursing
documentation
12 caregivers for palliative cancer
patients in Canada
Specialist nurses available 24 h/day
who communicated with patients and
families using videophones
Utilization patterns
(quantitative); thematic analysis
of qualitative data.
Mean length of exposure to telehealth was 3.5
months. Remote monitoring was used in 9% of
all contacts; 4% of all contacts required a visit by
the telenurse. Thematic analysis revealed three
subthemes: ease of access to a healthcare
professional; reassurance with visual access to
care; and enhanced access to pain symptom
management. Caregivers reported high levels of
satisfaction with the intervention, finding the
technology easy to use.
Moderate
Demiris et al.
13
(2012)
Randomized noninferiority
trial with two groups
126 caregivers, recruited from
two hospice programs in the
United States: 77 were randomly
assigned to the group receiving
face-to-face PST and 49 to the
group receiving PST via
videophone.
A videophone that operates over
regular telephone lines was installed at
patients’ homes. In total, three
intervention video calls were made,
each one lasting approximately 45 min.
QOL: CQLI-R
Anxiety: STAI,
Problem-Solving Inventory
The anxiety score decreased
significantly after the intervention. Differences in
QOL were not significant. PST delivered via
videophone was not inferior to face-to-face
delivery. The observed changes in scores were
similar for each group. Under both conditions,
caregiver QOL improved, and state anxiety
decreased.
High
Kilbourn et al.
14
(2011)
A single-group feasibility
study
23 caregivers recruited from
seven participating hospice
programs in the United States
A telephone cognitive-behavioral
stress-management intervention
including 10–12 weekly telephone
counseling calls
Depression: CES-D
Stress: PSS
QOL: MOS SF-36
Social support: ESSI, BFS
Depression and perceived stress decreased. Social
support and benefit finding increased. The
intervention was feasible for informal hospice
caregivers. Caregivers reported high levels of
satisfaction. They also reported high levels of
self-efficacy regarding their ability to implement
the adaptive coping skills. There was a decrease in
physical QOL across the three measurements.
Moderate
AHTSS, after-hours telephone support service; BFS, Benefit Finding Scale; CAI, Communication Anxiety Inventory; CBI, Caregiver Burden Inventory; CES-D, Center for Epidemiological Studies Depression Scale; CHESS,
Comprehensive Health Enhancement Support; CPMQ, Caregiver Perception of Pain Medicine Questionnaire; CQLI-R, Caregiver Quality of Life Index-Revised; CR, Clinician Report; ESSI, ENRICHD Social Support Instrument;
FFFS, Feetham Family Functioning Survey; HQLI, Hospice Quality of Life Index; MOS SF-36, Medical Outcome 36-Item Short-Form Health Survey; MSS, Mastery of Stress Scale; PSS, Perceived Stress Scale; PST, problem-
solving therapy; QOL, quality of life; QOLLTI-F, Quality of Life in Life Threatening Illness-Family instrument; STAI, State-Trait Anxiety Inventory; SV-POMS, Shortened Version of the Profiles of the Mood Status.
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4 TELEMEDICINE and e-HEALTH APRIL 2016 ªMARY ANN LIEBERT, INC.
Health Survey.
14
Three measured caregiver anxiety: two of
them using the State-Trait Anxiety Inventory and one
using Communication Anxiety Inventory. Two measured
caregiver burden using the Caregiver Burden Inventory,
one used the Chinese translated version Caregiver Burden
Inventory, and one used only a subscale of the Caregiver
Burden Inventory. Other instruments used in the nine
studies included the Caregiver Perception of Pain Medicine
Questionnaire, Mastery of Stress Scale, the Feetham
Family Functioning Survey, the Shortened Version of the
Profiles of the Mood Status, the Center for Epidemiological
Studies Depression Scale, the Perceived Stress Scale, the
ENRICHD Social Support Instrument, and the Benefit
Finding Scale.
Seven out of the nine studies used quantitative mea-
sures and analysis. The other two studies
15,16
used pre-
dominately qualitative methods (interviews and analysis
of documentation) coupled with utilization data.
TELEHEALTH TECHNOLOGY
Of the nine studies, four used videophones to sim-
ulate face-to-face communication with medical pro-
fessionals.
11–13,16
Two used regular phones for the
purpose of counseling.
14,15
Two used Internet-based
interventions.
18,19
One study did not report the details
of the telehealth device used in the intervention.
17
FINDINGS
Telehealth and caregiver quality of life. All five of the
studies measuring caregiver quality of life
11–13,17
showed no significant difference between the experi-
mental and control groups (or between pretest and
posttest). Caregivers in the single-group feasibility study
showed decreased physical quality of life over time.
14
Telehealth and caregiver anxiety. The anxiety score
significantly decreased after the intervention in two
studies.
12,13
One study did not show significant im-
provement in caregiver anxiety.
11
Telehealth and caregiver burden. Of the two studies
testing caregiver burden, one reported that the inter-
vention group experienced significantly reduced care-
giver burden,
18
and the other showed no significant
difference on the caregiver burden measurement.
19
Other measured outcomes. Besides the findings listed
above, there were other outcome measures used in the
nine studies. One study
18
found that the intervention
group experienced significantly improved family functioning
by reporting patients’ physical data through the telehealth
device and accessing 24-h telehealth support. Chih et al.
19
found an online symptom reporting system helped caregivers
to reduce negative mood. Kilbourn et al.
14
found caregivers
who received the telehealth intervention showed decreased
depression and perceived stress and increased social support
and benefit finding over time. Another study
11
found no sig-
nificant difference in anxiety between baseline and follow-up.
FEASIBILITY/SATISFACTION
Although feasibility of or satisfaction with the telehealth
intervention was not a focus of this review, many studies re-
ported such findings. Of the nine studies, four concluded that
Fig. 1. Flowchart of literature search procedure for eligible studies.
AU5
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ªMARY ANN LIEBERT, INC. VO L. 22 NO. 4 APRIL 2016 TELEMEDICINE and e-HEALTH 5
SYSTEMATIC REVIEW: TELEHEALTH FOR PALLIATIVE CAREGIVERS
the telehealth intervention was feasible.
1112,14,16
Five found
overall caregivers’ satisfaction with the intervention.
12,14–17
Discussion
This systematic review sought to assess the effectiveness of
telehealth interventions for caregivers of patients in home-
based palliative care across multiple studies. Overall, this
systematic review suggests there is evidence of overall satis-
faction in caregivers who undergo a telehealth intervention;
studies reported that the interventions were well received, and
few technological issues were reported.
Of the nine studies identified, the majority (66.7%) reported
improvement of quality of life and decreased level of care-
giver burden, anxiety, depression, and/or stress as a result of
the telehealth intervention. There was little duplication of
measures across the studies, making it difficult to assess the
impact of telehealth interventions across studies, but there is
at least weak evidence to support the use of telehealth as an
efficient and effective strategy in improving a variety of
quality of life indicators and alleviating psychological distress
of caregivers for palliative care patients, especially for those
living in underserved rural areas.
Based on the Cochrane Collaboration’s tool for risk analysis,
the quality of the studies was predominantly moderate. Meth-
odological limitations in study designs and/or small sample
sizes contributed to lower quality. As is common when con-
ducting research in palliative and hospice populations, re-
cruitment and attrition due to mortality challenged some of the
researchers. Only two of the nine studies used an experimental
design. More scientifically rigorous research is needed both in
palliative care and in the evaluation of telehealth interventions.
This review has several strengths. It utilized an extensive,
comprehensive, and reproducible search strategy. It utilized a
rigorous and transparent study quality assessment and applied
strict inclusion and exclusion criteria. The authors reviewed
all procedures and developed consensus as to content of the
extraction form and study quality evaluation.
Limitations of this review should be addressed as well. The
number of studies in this systematic review was lower than
might be expected. Chi and Demiris
20
found 52 experimental
studies reporting telehealth tools and interventions to support
family caregivers. However, there are few studies that specify
a focus on palliative, hospice, or advanced disease patients
only. Our findings include only English-speaking populations.
Telehealth interventions have the potential to improve the
experience of caregiving for those who care for palliative
patients, but more rigorous research to test and evaluate such
interventions is needed to justify telehealth approaches in
palliative care.
Disclosure Statement
No competing financial interests exist. AU4
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Address correspondence to:
Yongqiang Zheng, MA, MSSW
Kent School of Social Work
University of Louisville
Louisville, KY 40292
E-mail: yq.zheng@louisville.edu
Received: May 18, 2015
Accepted: July 1, 2015
AU1 Changed to match number given in text.
AU2 Are quotation marks needed around any of these phrases?
AU3 Because of graphic symbols in text, Table 2 is being treated as a figure.
AU4 Verify statement is correct or provide individual disclosure as needed.
AU5 No legend supplied with original submission. Provide new description as needed.
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