Animal Assisted Therapy in Palliative Care

Research article
Open Access
Published: 02 October 2017

Animal-assisted therapy at a University Centre for Palliative Medicine – a qualitative content analysis of patient records

Melanie Beermann¹,
Colin R. MacKenzie⁵,
Katharina Fetz⁶ &
Christian Schulz-Quach^3,4

BMC Palliative Care volume 16, Article number:50 (2017) Cite this article

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Abstract

Background

Animal-assisted therapy (AAT) is a therapeutic concept, which has only recently been explored in more detail within the palliative care setting. A programme of AAT was begun in June 2014 at the Interdisciplinary Centre for Palliative Medicine of the University Hospital Dusseldorf, Germany. The AAT sessions were performed by two trained and certified dog assistant therapy teams (DATT). To date only very limited scientific data are available with regard to feasibility, therapeutic indications and efficacy of AAT in palliative care. The present qualitative study aims to describe the first year's practice and experience of AAT after implementation as an integral part of adjunctive therapy options offered within an academic palliative care centre.

Methods

This study is a qualitative content analysis of all post-encounter protocols of AAT interventions recorded by the dog handlers from June 2014 through May 2015. Qualitative content analysis was conducted according to Mayring's approach; the report followed the recommendations of the Standards for Reporting Qualitative Research (SRQR).

Results

Fifty-two patients received 84 AAT interventions, with only 18 patients receiving more than one intervention due to discharge or death. In 19 cases relatives also participated in the AAT session. The inductive coding process yielded four main categories. One hundred and fifty-three codes related to the content and structure of the AAT sessions, with physical contact with the dog taking considerable precedence. The AAT sessions included conversations with the dog handler, 10.5% of which related to the current health state as well as to discussions around death and dying. Eighty-nine codes related to perceived emotional responses, with pleasure being the most often observed response. Two hundred and seventeen codes related to the effects of the AAT sessions, identifying the dog as a catalyst of communication and observing patients' physical activation or relaxation.

Conclusions

AAT may constitute a valuable and practicable adjunct to the interdisciplinary therapeutic repertoire of palliative care in the hospital setting. The results of this study suggest that patients may potentially benefit from AAT in terms of facilitated communication, positive emotional responses, enhanced physical relaxation or motivation for physical activation. These early stage results will need to be followed-up by more robust study designs.

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Background

Palliative care attends to health care needs of persons with progressive and life-limiting diseases. Common symptoms are pain, anxiety and psychosocial distress, which is why animal-assisted therapy (AAT) may constitute a valuable therapeutic approach for the benefit of palliative care patients, but little is known about this approach so far.

The WHO definition of palliative care (2002) emphasises improving the quality of life of patients and their families and the interprofessionality and comprehensiveness of this therapeutic approach [1]. One main objective of palliative care is to relieve or alleviate patients' symptom burden to the best possible extent. Also, relatives and friends of patients are often in a state of existential distress and in need of professional support. The use of AAT in palliative care is a relatively recent and not yet routinely established therapeutic concept, even though both share the goal of improving patients' quality of life [1, 2].

The International Association of Human-Animal Interaction Organizations (IAHAIO) (2014) defines AAT as follows: "Animal Assisted Therapy is a goal oriented, planned and structured therapeutic intervention directed and/or delivered by health, education and human service professionals. Intervention progress is measured and included in professional documentation. AAT is delivered and/or directed by a formally trained (with active licensure, degree or equivalent) professional with expertise within the scope of the professionals' practice. AAT focuses on enhancing physical, cognitive, behavioural and/or socio-emotional functioning of the particular human recipient."[3].

Humans are innately social beings; they need social relationships and emotional bonds. This need is not necessarily restricted to relationships between humans but can cross the species boundary, therefore enabling bonding between humans and animals. Wilson describes this kind of bond – called biophilia – as a product of evolutionary development, proposing that humans have an urge to affiliate with other forms of life [4].

The knowledge that animals improve the well-being of humans is far from new and the development of its deliberate therapeutic application dates back to the late eighteenth century. Florence Nightingale, for instance, mentioned in her Notes on Nursing that „a small pet is often an excellent companion for the sick, for long chronic cases especially „[5]. Boris Levinson described the beneficial effect of his dog's presence during therapeutic interactions with his patients [6]. Today a broad range of scientific findings suggest a beneficial effect for humans as a direct result of interacting with an animal (human-animal interaction, HAI) [7]. For an example, Vernooij and Schneider refer in their analysis of HAI to psychoanalytic theory and conceptualise the function of the animal as: object for identification, projection and motivation, which can also serve as a transition object and catalyst in processing difficult emotions [8]. The most common type of AAT-related HAI involves dogs [2].

Beetz et al. showed in their review about psychophysiological effects of human-animal interactions well-documented benefits for stress-related parameters such as decrease in cortisol plasma levels, heart rate, and blood pressure and some limited evidence for reduction in epinephrine and norepinephrine plasma levels. The authors discuss activation of the oxytocin system as the underlying key mechanism [9]. Current therapeutic indications of AAT for medical purposes are based on these scientific findings showing, for instance, reduced fear and anxiety after an AAT intervention in psychiatric patients, especially in cases of situational fear prior to medical procedures [10].

Currently, there is a dearth of research examining the application of AAT in palliative care, especially regarding psychological aspects. Engelman et al. described in their anecdotal study 2013 that AAT "can be an effective method for reducing pain in palliative care patients" [11]. Engelman described a 51-year-old patient in a palliative care setting, who as a result of low mood and anger progressively withdrew socially and asked to be "left alone", however, he engaged in AAT and after only one session re-engaged with his environment [11]. With regard to the behavioural functioning, Berry showed that AAT might improve behavioural activation in geriatric patients [12]. Most of the available literature, however, is based on anecdotal research, opinion pieces, and poorly designed studies. The critical review by Chur-Hansen 2013 therefore concluded that currently "there is a weak evidence base for AAT (...) in palliative care" [13]. Consequently, formulating clear therapeutic indications and therapy objectives for AAT in palliative care, especially for improvement of psychological well-being, is not possible at present and research is needed.

The present qualitative study aims to describe the first year's practice and experience of AAT after implementation as an integral part of adjunctive therapy options offered by an academic palliative care centre.

Methods

In the present study, the Standards for Reporting Qualitative Research (SRQR) were adopted for the presentation of our data [14].

Based on the limited evidence available, the Interdisciplinary Centre for Palliative Medicine (ICP) of the University Hospital Dusseldorf, Germany, has defined psychologically distressing symptoms as suitable therapeutic indications of AAT (see Table 1). The indication is determined by the attending physician and the psycho-oncologist or psychotherapist.

Table 1 Psychological Indications of AAT at the Interdisciplinary Centre for Palliative Medicine (ICP) of the University Hospital Dusseldorf, Germany

Full size table

The study design is based on the retrospective analysis of dog handlers' protocols of AAT sessions. An inductive approach was used following Mayring's model of qualitative content analysis [15]. The aim was to generalise from single phenomena.

Research team and reflexivity

The evaluation of research data was conducted by AS, the (former) medical chief, who implemented AAT at the ICP in 2014, and principal researcher of the ICP Dusseldorf, Germany, and MB as a doctoral student. They analysed the data after it was de-identified. CSQ, the (former) deputy medical chief and principal researcher of the ICP Dusseldorf, Germany, examined and reviewed the research results. To take possible role-conflicts, conflicts of interest or bias into account, all three were neither present during the AAT sessions, nor during the dog handlers' documentation of the sessions. No instructions beyond the standard clinical governance rules were given to the dog handlers as to how to document the AAT session. The dog handlers' notes were not discussed with them afterwards. These precautions were put in place to clearly separate between clinical intervention and the related research. The SRQR guideline was used for quality assurance purposes within this research. During data analysis, researchers maintained reflexivity by regular research meetings of all investigators, discussions about coding rules and the developing category system, as well as using a reflexive journal for methodological decisions and documenting means of conflict resolution for divergent understandings of data.

Setting

This study was conducted at the ICP of the Heinrich Heine University Hospital Dusseldorf, Germany. The interprofessional team of the ICP Dusseldorf, Germany, attends to the needs of more than 600 patients and their relatives per year. At the ICP Dusseldorf, patients are treated on the palliative care ward as well as on general wards by means of a palliative consultation service team. At the 8-beds specialized palliative care unit patients at the end of life are mainly diagnosed with end-stage cancer, chronic organ failure and/or neurological diseases. Patients have a varying degree of symptom burden needing treatment on the physical, psychological, social and spiritual level. Approximately 40% of inpatients get discharged from the unit after treatment, whilst 60% die during their admission [16]. The average length of stay is 12 days [17].

Intervention

All AAT interventions were performed in the palliative care unit. All documented AAT sessions between June 1st, 2014 and May 31st, 2015 were included. During this time, two dog assisted therapy teams (DATT) performed AAT at the ICP Dusseldorf, Germany. AAT was only offered to patients without known allergies or aversion to animals who were suffering from psychological distress (see Table 1).

Each AAT therapy session followed a clear structure, which was nevertheless adapted to individual patient needs and wishes. It consisted of four stages – introduction, observation, contact and farewell (see Table 2). During each session the therapist applied three main strategies: free interaction (e.g. playing with the dog), directed interaction (e.g. observation task) and ritualised interaction (e.g. signal response) [8].

Table 2 AAT structure according to Gottschling [18] as applied at ICP Dusseldorf

Full size table

All forms of interactions could be used in the stages of observation and contact. Generally, free interaction becomes increasingly relevant with increasing numbers of sessions.

One of the trained and certified DATT consisted of a therapist with background in social work and a therapy assistant dog. The other team consisted of a therapist with background in education and a therapy assistant dog. Both were trained and certified to national standards, one of them to ESAAT standards. The research material consisted of the protocols written by the therapists after each AAT session.

Analysis

Analyses were performed using Word, MAXQDA 11 and Excel (Microsoft Office 2011). Demographic data were analysed and registered using Excel (Microsoft Office 2011). AAT session protocols were extracted from individual electronic patient files. We collected demographic data (gender, age), medical (diagnosis, hospital stays) and organizational data (duration of AAT intervention). Data were analysed only after sufficient anonymisation. With regard to verbatim excerpts, we used pseudonyms and we took particular care to eliminate any personally identifiable information. Documented AAT sessions were added to a software program, MAXQDA 11, and analysed according to Mayring's model of qualitative content analysis [15]. We did not paraphrase our material, since the AAT protocols were already short and condensed. We conducted an open, inductive analysis. After familiarisation with the raw data a coding scheme was developed in a multi-level process. First MB and AS performed the coding process independently, then any discrepancies were discussed and new codes or code definitions were created. To enhance the trustworthiness and credibility of our data analysis, triangulation was conducted with CSQ.

After confirmation of sufficient inter-coder reliability, the text passages were then subsumed to formulate categories. Parallel data for 19.2% were coded, with an inter-coder reliability of 88% (Cohen Kappa 0.82).

Ethical approval was granted by the Ethics Committee of the Medical Faculty of Heinrich Heine University Dusseldorf, Germany protocol number 5105, 2015/06/01.

Results

Between June 1st, 2014 and May 31st, 2015, 52 patients received AAT at the ICP Dusseldorf, Germany.

Patient characteristics

Of the 52 patients receiving AAT, 32 were female (61%) and 20 were male (39%). Median age was 65 years (mean 63.3; 28–90 years; see Fig. 1). Forty-nine patients were treated on the palliative care ward and three patients were treated on general wards by the ICP palliative consultation service. All patients suffered from a progressive terminal primary disease and had been referred for palliative care. Forty-seven patients had an oncological disease and five patients a non-oncological disease, i.e. cerebral apoplexy (n = 2), terminal heart failure (n = 2), terminal renal failure (n = 1).

Seventeen patients had a documented history of companion animal ownership, of which 14 owned dogs. A further 17 patients had a documented history of experiences with dogs, but without companion animal ownership. For 21 patients, the dog handlers' protocols included comments regarding pre-existing symptom burden during AAT session. The most frequently symptoms mentioned were exhaustion/fatigue, followed by pain and dyspnoea. Twelve patients showed visible signs of active pre-existing symptom burden during their sessions, but all patients wished to continue their respective AAT sessions.

AAT characteristics

During the 12-month observation period, 52 patients received 84 AAT sessions by two teams of therapy companion dogs and their respective handlers (per patient: median 1.0, mean 1.6; see Fig. 2). Among those, most of them received a single intervention. Only 18 patients had a second AAT session even though the dog handlers' protocols showed 38 patients requesting further AAT sessions.

With regard to AAT duration, the median was 30 min (mean 32.7 min; 10–67 min; see Fig. 3).

Discussion

The present qualitative study described the first year's practice and experience of AAT in inpatient care at an academic palliative care centre. Only a third of the patients had a second AAT session. For those who did not receive a further intervention, the following two reasons were identified: first, hospital discharge before the next planned AAT session; secondly, patient death. The frequent occurrence of patient death in palliative care is a common phenomenon which constitutes a limiting factor and a challenge for rigorous evidence-based palliative care research [19].

The present study described the current practice of a newly implemented AAT concept with AAT sessions currently offered twice a week, however, most patients in our study received only one AAT session. Relatively short average length of stay at the specialised palliative care unit serves as a limiting factor for repeated interventions, however, this study was not aimed at identifying the optimal dose of AAT for a diverse range of indications and this will need to be looked at in research projects going forward. Interestingly, there is no robust evidence at present that higher frequency of AAT interventions improves outcomes. To the contrary, a study by Banks and Banks looked at reducing loneliness in an elderly population in long-term care facilities by AAT, comparing AAT facilitation once a week and three times a week, respectively. They found that AAT once a week was as effective as three times a week in reducing loneliness in long-term care residents [20].

AAT offered by the ICP Dusseldorf, Germany, is tailored to individual patient needs. During the 12-month observational period, the average duration of an AAT session was 30 min. In some patients, the AAT session was discontinued ahead of schedule due to patients' symptom burden like exhaustion and fatigue. However, most of these patients expressed their desire to continue with the AAT session in spite of existing symptom burden. This finding supports the positive effect of tailoring therapy duration to individual patient needs. At the same time it is important to also consider the welfare of the therapy dog, for instance in terms of signs of discomfort and exhaustion. It is for this reason that the International Society for Animal Assisted Therapy (ISAAT) and the European Society for Animal Assisted Therapy (ESAAT) have published AAT quality criteria and guidelines to ensure the wellbeing of the involved animals [21].

Even though there are various palliative care facilities currently offering AAT or animal-assisted activity (AAA), there is still a paucity of scientific research demonstrating their efficacy and feasibility [22]. A German study conducted by Gottschling et al. on the efficacy of AAT in palliative care patients suggests that the targeted use of therapy dogs may significantly improve patients' well-being [23].

To date, there exist no clearly formulated therapeutic indications of using AAT in palliative care settings. Wohlfahrt and Olbrich state that merely a general objective statement is loosely based on the ICD list or the ICF model [21].

It is for this reason that the researchers of the present study chose patients based on psycho-socio-emotional burden and distress and therefore with regard to possible treatment objectives of AAT, e.g. improved communication, increased emotional stability, patient motivation and activation, improved relaxation and development of self-satisfaction.

Effects of AAT sessions

AAT sessions consist of four stages (see Table 2). The contact phase is mainly intended for those activities targeting the respective therapy objectives.

In this context, tactile interaction with the therapy dog was of central importance. It was achieved by means of touching, patting or stroking the therapy dog or having it lie on the patient bed beside the patient. In those interactions dog handlers' observation records frequently identified observing patients to become more relaxed. Several studies documented that human relaxation as a consequence of interaction with animals was closely associated with increased levels of oxytocin, endorphins and a decreased cortisol level [9, 24, 25]. As a more intermediate effect, and different from the immediate relaxation, AAT seemed to cause behavioural activation in some palliative care patients. Petting the dog and building rapport appeared to motivate patients to initiate reciprocity and willingness to engage in playful interaction with the dog. This observation has been reported in the literature before. For an example, Berry described the same finding for AAT as utilised in working with geriatric patients [12].

What is more, we found that dog handlers' protocols often mentioned AAT-induced emotions. Pleasure was recorded most often and was associated with the presence of and interaction with the dog. On the other hand, they occasionally observed sadness during the encounters with the therapy dog, but also recorded that the therapy dog eventually calmed and distracted the patients during the AAT session. Another emotion observed in the patients by the dog handlers was humour. Penson et al. postulated that humour, used with sensitivity and adequately, may constitute a valuable addition to health providers' therapeutic repertoire [26]. For several palliative care patients, the dog handlers documented observing increased self-efficacy as a result of AAT. This finding is in line with the study by Berget et al., who reported that AAT with farm animals may have a positive effect on patients' self-efficacy and coping ability [27].

The protocols often included reports of how patients frequently talked about topics like their own disease, death and dying and that the encounter with the therapy dog enhanced the initiation of such conversations, supporting the assumption that AAT may be a valuable therapeutic tool to promote positive social interaction and communication. Lang et al., who investigated the effect of AAT in reducing anxiety in acute schizophrenic patients, reported that a reduction of anxiety may promote initiation of interpersonal contact and communication [28].

The present study described a single centre application of AAT and gave a first descriptive indication of potential beneficial effects of AAT in a palliative care setting. These findings can serve as a basis for more research exploring AAT in palliative care as an adjunctive therapeutic approach to reduce patients' symptom burden with specific emphasis on ameliorating psychosocial symptoms.

Limitations

This descriptive, qualitative study has clear limitations and caution should be used in generalising from these single centre findings. The small study sample, the low number of therapy sessions and the qualitative analysis of AAT session protocols written by two different dog handlers constitute clear limitations of the present study. Moreover, the findings are based on the perceptions of the handlers and are not necessarily based on what actually occurred. In addition, there was a considerable variance in the dog handler's open text protocols, which was due to the insufficient standardisation of documentation and differing professional backgrounds of the dog handlers.

Conclusions

This study describes the first year's practice and experience of AAT after implementation into an academic palliative care centre within a specialized inpatient unit. We described the structure and process of implementing AAT as an adjunctive therapy option and described potentially beneficial patient outcomes on a variety of psychosocial distress symptoms as observed in this particular cohort of palliative care patients.

There is an urgent need of further qualitative research studies to thoroughly investigate possible effects on palliative care patients. It is further recommended to develop clearly formulated and research-based therapeutic indications of AAT in palliative care. It might also be of scientific interest to analyse videotaped patient-animal encounters to be able to describe non-verbal interaction phenomena in detail.

Abbreviations

AAA:: Animal-assisted activity
AAT:: Animal-assisted therapy
ESAAT:: European Society for Animal Assisted Therapy
HAI:: Human-animal interaction
IAHAIO:: International Association of Human-Animal Interaction Organizations
ICP:: Interdisciplinary Center for Palliative Care
ISAAT:: International Society for Animal Assisted Therapy
SRQR:: Standards for reporting qualitative research

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Acknowledgements

We would like to thank the two dog handlers for their collegial cooperation, especially Melanie Spiwoks for her detailed documentation of the AAT interventions. We thank staff members of the Interdisciplinary Centre for Palliative Medicine for their support during this project.

Funding

For the present study no funding was obtained.

Availability of data and materials

Original data and material supporting the findings of this study can be found at the corresponding author.

Authors' contribution

MB and AS share first authorship as they contributed equally to this project. AS contributed to the study design analysis of data, preparation of the manuscript and study coordination. MB analysed the data and wrote the manuscript. CSQ contributed to the study design, analysis of data and prepared the manuscript providing critical revisions. KF and CM read the manuscript providing critical revisions. All authors contributed to reading and approving the final manuscript.

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Author notes

Affiliations

Interdisciplinary Centre for Palliative Medicine, Heinrich Heine University Hospital Dusseldorf, Dusseldorf, Germany

Andrea Schmitz & Melanie Beermann
LVR Clinic of Psychiatry, Psychosomatic and Psychotherapy for children and adolescence, Viersen, Germany

Andrea Schmitz
Maudsley Training Programme, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK

Christian Schulz-Quach
St. Christopher's Hospice, Sydenham, London, UK

Christian Schulz-Quach
Institute of Medical Microbiology and Hospital Hygiene, University Hospital, Heinrich Heine University Dusseldorf, Dusseldorf, Germany

Colin R. MacKenzie
Chair of Research Methodology and Statistics in Psychology, Department of Psychology & Psychotherapy, Faculty of Health, Witten/Herdecke University, Witten, Germany

Katharina Fetz

Corresponding author

Correspondence to Andrea Schmitz.

Ethics declarations

Ethics approval and consent to participate

Ethical approval was granted by the Ethics Committee of the Medical Faculty of Heinrich Heine University Dusseldorf, Germany, protocol number 5105, 2015/06/01. All included patients gave informed consent to participate in this study.

Consent for publication

All patients gave informed consent to publication of the data presented in this study.

Competing interests

The authors declare no competing interests.

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Schmitz, A., Beermann, M., MacKenzie, C.R. et al. Animal-assisted therapy at a University Centre for Palliative Medicine – a qualitative content analysis of patient records. BMC Palliat Care 16, 50 (2017). https://doi.org/10.1186/s12904-017-0230-z

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Received: 29 December 2016
Accepted: 31 August 2017
Published: 02 October 2017
DOI : https://doi.org/10.1186/s12904-017-0230-z

Keywords

Palliative care
Animal-assisted therapy
Dog

Animal Assisted Therapy in Palliative Care

Source: https://bmcpalliatcare.biomedcentral.com/articles/10.1186/s12904-017-0230-z

Animal Assisted Therapy in Palliative Care

Animal-assisted therapy at a University Centre for Palliative Medicine – a qualitative content analysis of patient records

Abstract

Background

Methods

Results

Conclusions

Background

Methods

Research team and reflexivity

Setting

Intervention

Analysis

Results

Patient characteristics

AAT characteristics

Categories

AAT practice and environmental factors

Content of AAT sessions

Effect of AAT

Behavioural activation through AAT

Discussion

Effects of AAT sessions

Limitations

Conclusions

Abbreviations

References

Acknowledgements

Funding

Availability of data and materials

Authors' contribution

Author information

Affiliations

Corresponding author

Ethics declarations

Ethics approval and consent to participate

Consent for publication

Competing interests

Publisher's Note

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Cite this article

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