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ARTICLE PREVIEW

 * Abstract
 * Introduction
 * Section snippets
 * References (13)
 * Cited by (13)
 * Recommended articles (6)


COMPLEMENTARY THERAPIES IN CLINICAL PRACTICE

Volume 24, August 2016, Pages 134-138




THERAPEUTIC TOUCH® IN A GERIATRIC PALLIATIVE CARE UNIT – A RETROSPECTIVE REVIEW

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ABSTRACT

Complementary therapies are increasingly used in palliative care as an adjunct
to the standard management of symptoms to achieve an overall well-being for
patients with malignant and non-malignant terminal illnesses. A Therapeutic
Touch Program was introduced to a geriatric Palliative Care Unit (PCU) in
October 2010 with two volunteer Therapeutic Touch Practitioners providing
treatment.


OBJECTIVE

To conduct a retrospective review of Therapeutic Touch services provided to
patients in an in-patient geriatric palliative care unit in order to understand
their responses to Therapeutic Touch.


METHODS

A retrospective medical chart review was conducted on both patients who received
Therapeutic Touch as well as a random selection of patients who did not receive
Therapeutic Touch from October 2010–June 2013. Client characteristics and the
Therapeutic Touch Practitioners' observations of the patients' response to
treatment were collected and analyzed.


RESULTS

Patients who did not receive Therapeutic Touch tended to have lower admitting
Palliative Performance Scale scores, shorter length of stay and were older.
Based on a sample of responses provided by patients and observed by the
Therapeutic Touch practitioner, the majority of patients receiving treatment
achieved a state of relaxation or sleep.


CONCLUSIONS

This retrospective chart review suggests that implementation of a TT program for
an inpatient geriatric Palliative Care Unit is feasible, and appears to be safe,
and well-tolerated. Moreover, patient responses, as recorded in the Therapeutic
Touch practitioners' session notes, suggest beneficial effects of Therapeutic
Touch for a significant number of participants with no evidence of negative
sequelae. Therefore, the use of TT in this difficult setting appears to have
potential value as an adjunct or complementary therapy to help patients relax.


INTRODUCTION

Complementary therapies are increasingly used in palliative care as an adjunct
to the standard management of symptoms to achieve an overall well-being for
patients with malignant and non-malignant terminal illnesses [1], [2], [3], [4].
Complementary therapies are defined as “a group of diverse medical and health
care systems, practices, and products that are not generally considered part of
conventional medicine” [5].

Therapeutic Touch is a complementary therapy modality based on the belief that a
person and his/her illness is reflected in an imbalance of their energy field
[6]. The Therapeutic Touch practitioner detects imbalance and restores balance
using a technique in which their hands are used to direct human energy for
healing purposes. There is usually no actual physical contact [6]. Therapeutic
Touch is garnering attention for its potential role in ameliorating symptoms
such as pain, sleep disturbances, depression, stress and anxiety in patients
suffering from both malignant and non-malignant terminal illnesses [1], [2],
[4], [7], [8]. Although Therapeutic Touch is already being used in palliative
care settings, there is limited evidence supporting its use in the care of
elderly patients at end of life [6], [9], [10].

The Baycrest Palliative Care Unit in Toronto is a 31 bed unit which cares for
elderly adults with both malignant and non-malignant terminal illnesses. The
unit admits patients with a prognosis of up to one year. Various complementary
therapies are offered on this Palliative Care Unit including: recreational
therapy, art therapy pet therapy, music therapy, and spiritual guidance and
support.

A Therapeutic Touch program was introduced to the unit in October 2010. Two
volunteer Therapeutic Touch practitioners, who have Recognized Practitioner
status with the Therapeutic Touch Network of Ontario, offered the therapy to
patients who had given verbal consent. Therapeutic Touch sessions were provided
up to twice weekly.

This retrospective chart review aims to describe the patients on a geriatric
palliative care unit who are receiving Therapeutic Touch services and to
identify their response to this treatment.


SECTION SNIPPETS


METHOD

In order to describe the patients who received Therapeutic Touch and their
response to treatment, a retrospective chart review of a subset of patients
admitted to the Palliative care unit at Baycrest Health Sciences from October
2010–June 2013 was performed. There were 733 patients admitted to the Palliative
Care Unit during the study period. Of these, 114 (15%) received Therapeutic
Touch therapy. Approximately 1 in 5 of the remaining patients who had not
received Therapeutic Touch were


PATIENT CHARACTERISTICS

During the period from October 2010 to June 2013 a total of 733 patients were
admitted to the Palliative Care Unit. One hundred and fourteen patients received
Therapeutic Touch during the course of their stay on the unit. Observations on
101 patients were recorded by the Therapeutic Touch practitioner during the
first session offered. Some of the reasons that 13 patients declined the first
session offered included having visitors, not being available, family requesting
the Therapeutic Touch


DISCUSSION

Our study examined a geriatric patient population on a palliative care unit
receiving Therapeutic Touch and described their response to treatment.
Therapeutic Touch was administered by two volunteer registered practitioners who
were available one or two times per week. Observations made by the Therapeutic
Touch practitioners showed positive responses during the first offered session
and no negative observations were made. Patients appearing to relax (n = 39) was
the most common behavior


CONCLUSION

We provided an overview of a volunteer Therapeutic Touch program offered on an
inpatient geriatric Palliative Care Unit caring for patients with both malignant
and non-malignant terminal illnesses. The retrospective chart review suggests
that implementation of a TT program for an inpatient geriatric Palliative Care
Unit is feasible, and appears to be safe, and well-tolerated. Moreover, patient
responses, as recorded in the Therapeutic Touch practitioners' session notes,
suggest beneficial


ACKNOWLEDGEMENT

We would like to specially thank Helen Kuttner (RP) and Sue Hartman (RP),
Volunteer and Recognized Practitioners of Therapeutic Touch, Olivia Naftolin
(OT), Niki Roberts (OT) who developed all documents related to process and
procedures, Bev Devins, Volunteer Coordinator, Special Programs, who ensured
that the volunteer services process was in place in accordance with the
requirements of the policy, and Joshua Tordjman BSc (RA) for data collection.




REFERENCES (13)

 * K. Virik et al.
   
   
   VALIDATION OF THE PALLIATIVE PERFORMANCE SCALE FOR INPATIENTS ADMITTED TO A
   PALLIATIVE CARE UNIT IN SYDNEY, AUSTRALIA
   
   
   J. PAIN SYMPTOM MANAGE
   
   (2002)
 * A.B. Coakley et al.
   
   
   ENERGY THERAPIES IN ONCOLOGY NURSING
   
   
   SEMIN. ONCOL. NURS.
   
   (2012)
 * M. Giasson et al.
   
   
   EFFECT OF THERAPEUTIC TOUCH ON THE WELL-BEING OF PERSONS WITH TERMINAL CANCER
   
   
   J. HOLIST. NURS.
   
   (1998)
 * G. Newshan et al.
   
   
   LARGE CLINICAL STUDY SHOWS VALUE OF THERAPEUTIC TOUCH PROGRAM
   
   
   HOLIST. NURS. PRACT.
   
   (2003)
 * I.E. Marta et al.
   
   
   THE EFFECTIVENESS OF THERAPEUTIC TOUCH ON PAIN, DEPRESSION AND SLEEP IN
   PATIENTS WITH CHRONIC PAIN: CLINICAL TRIAL
   
   
   REV. ESC. ENFERM. USP
   
   (2005)
 * S. Gregory et al.
   
   
   THERAPEUTIC TOUCH: ITS APPLICATION FOR RESIDENTS IN AGED CARE
   
   
   AUST. NURS. J.
   
   (2005)

There are more references available in the full text version of this article.


CITED BY (13)


 * EFFECT OF THERAPEUTIC TOUCH ON SLEEP QUALITY AND ANXIETY IN INDIVIDUALS WITH
   CHRONIC OBSTRUCTIVE PULMONARY DISEASE: A RANDOMIZED CONTROLLED TRIAL
   
   2021, Complementary Therapies in Clinical Practice
   Show abstractNavigate Down
   
   The purpose is to determine the effect of therapeutic touch (TT) on the sleep
   quality and anxiety of individuals with chronic obstructive pulmonary (COPD)
   disease.
   
   103 patients were randomized in to the two groups: the experimental group,
   and the control group. In this randomized control study, the patients with
   COPD in the experimental group were given TT for 10 min between 18:00 and
   20:00, one session every day for three consecutive days.
   
   When the experimental group was compared to control group following the
   intervention, the decrease in the levels of anxiety (p < 0.001) and increase
   in the sleep quality (p < 0.001) were found to be significant.
   
   As a result of the study, it was determined that TT reduced anxiety level and
   improved sleep quality in individuals with chronic obstructive pulmonary
   disease. The Clinical Trial Registration Number: NCT04842903.


 * EFFECT OF THERAPEUTIC TOUCH ON DAYTIME SLEEPINESS, STRESS AND FATIGUE AMONG
   STUDENTS OF NURSING AND MIDWIFERY: A RANDOMIZED SHAM-CONTROLLED TRIAL
   
   2021, Complementary Therapies in Clinical Practice
   Show abstractNavigate Down
   
   This study was conducted to assess the effect of therapeutic touch on stress,
   daytime sleepiness, sleep quality and fatigue among students of nursing and
   midwifery.
   
   96 students were randomized into three groups: the therapeutic touch (TT)
   group, the sham therapeutic touch (STT) group, and the control group. In this
   randomized sham-controlled study, the TT group was subjected to therapeutic
   touch twice a week for four weeks with each session lasting 20 min.
   
   When the TT group was compared to the STT and control groups following the
   intervention, the decrease in the levels of stress (p < 0.001), fatigue
   (p < 0.001) and daytime sleepiness (p < 0.001), and the increase in the sleep
   quality (p < 0.001) were found to be significant.
   
   It was found that TT, which is one form of complementary therapy, was
   relatively effective in decreasing the levels of stress, fatigue and daytime
   sleepiness, and in increasing the sleep quality of university students of
   nursing and midwifery.


 * BEYOND LANDSCAPE'S VISIBLE REALM: RECORDED SOUND, NATURE, AND WELLBEING
   
   2020, Health and Place
   Show abstractNavigate Down
   
   This article draws on an AHRC/EPSRC funded project called ‘A Sense of Place:
   Exploring nature and wellbeing through the non-visual senses’. The project
   used sound and smell technologies, as well as material textures and touch, to
   ask: what does ‘wellbeing’ mean for people in relation to the non-visual
   aspects of nature, and how might technology play a role in promoting it (if
   at all)? This article takes recorded sound as a case study. It argues that
   recorded soundscapes should be understood on their own terms rather than as
   ‘less than’ or a simulation of natural environments. They have specific value
   in creating space for imagination, particularly when delivered with care and
   as part of the co-creation of sensory experience. Overall, the article argues
   that the value of emerging immersive technologies is not to simulate nature
   better. An ‘immersive experience’ is richest when it allows for – and reveals
   – the nuances and complexities of individual responses to natural
   environments.


 * MIND-BODY INTERVENTIONS IN THE MANAGEMENT OF CHRONIC CANCER PAIN
   
   2019, Seminars in Oncology Nursing
   Show abstractNavigate Down
   
   To describe mind-body interventions used in the management of chronic cancer
   pain including their mechanisms of action, dosing, and delivery methods based
   on available evidence to date.
   
   Peer-reviewed publications.
   
   Further high-quality research is needed to establish the effectiveness and
   mechanisms of actions for mind-body interventions in chronic cancer pain
   management.
   
   Mind-body interventions for chronic cancer pain management are generally safe
   and well-accepted by individuals with cancer. Nurses need to be knowledgeable
   about these interventions to explain their level of effectiveness and any
   safety issues with patients.


 * EFFECTS OF LAYING ON OF HANDS WITH AND WITHOUT A SPIRITUAL CONTEXT ON PAIN
   AND FUNCTIONALITY OF OLDER WOMEN WITH KNEE OSTEOARTHRITIS: STUDY PROTOCOL FOR
   A RANDOMIZED CONTROLLED TRIAL
   
   2018, Journal of Integrative Medicine
   Show abstractNavigate Down
   
   Laying on of hands (LooH) is a culturally-accepted therapy in several
   traditions. In Brazil, “Spiritism” (third-largest religious tradition in
   number of followers) uses LooH with the name of “Spiritist Passe” (SP).
   However, there are few studies assessing SP’s role in medical outcomes. The
   present study aims to investigate the effects of LooH, with and without a
   spiritual context, on pain, joint stiffness, and functional capacity of older
   women (≥60 years old) with knee osteoarthritis (KOA).
   
   In this triple-blind, prospective randomized controlled trial, older women
   with KOA are assigned to three groups: LooH with a spiritual context group,
   LooH group without a spiritual context, and a control group receiving no
   intervention. Patients are assessed by a blinded researcher at baseline,
   8 weeks, and 16 weeks. Pain, joint stiffness, and functional capacity are
   assessed using Western Ontario and McMaster Universities Osteoarthritis
   Index. Other measures such as anxiety, depression, gait speed, and quality of
   life will also be assessed. To detect differences between groups, a
   post-intervention comparison between the three groups and a mean change
   (post-pre) comparison among the three groups will be done using analysis of
   variance. All statistical analyses will be performed using an
   intention-to-treat approach and a per-protocol analysis.
   
   A pragmatic design using SP, LooH without spiritual context, and no LooH may
   provide further scientific evidence on SP’s feasibility and efficacy for KOA
   patients.
   
   ClinicalTrials.gov Identifier NCT02917356.


 * THERAPEUTIC TOUCH IN THE MANAGEMENT OF RESPONSIVE BEHAVIORS IN PATIENTS WITH
   DEMENTIA
   
   2022, Dementia and Geriatric Cognitive Disorders
   
   

Arrow Up and RightView all citing articles on Scopus


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