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Utilization of Acupuncture Therapy among Pediatric Oncology Patients at a Tertiary Care Pediatric Hospital

Ralston-Wilson J1,3,6*, Tseng A1, Oberg E2, Sasagawa M1, Doorenbos AZ4,5 and Kundu A7

1Bastyr University, Kenmore, WA, USA

2Clinical Services and Center for Health Policy and Leadership, Bastyr University, San Diego, CA, USA

3Department of Anesthesiology and Pain Medicine, Seattle Children’s Hospital, Seattle, WA, USA

4Department of Anesthesiology and Pain Medicine School of Medicine, University of Washington, Seattle, WA, USA

5Department of Biobehavioral Nursing and Health Systems, University of Washington, Seattle, WA, USA

6Complementary and Integrative Medicine Program, Seattle Children’s Hospital, Seattle, WA, USA

7Department of Anesthesiology & Pain Medicine Nationwide Children’s Hospital 700 Children’s Drive Columbus, USA

*Corresponding Author:
Jaime Ralston-Wilson
Department of Anesthesiology and Pain Medicine
M/S MB.11.500.3 Anesthesia Administration, Seattle Children’s Hospital
4800 Sand Point Way NE, Seattle, WA 98105, USA
Tel: (206) 987-2704
Fax: (206) 987-3935
E-mail: [email protected]

Received date July 02, 2013; Accepted date July 08, 2013; Published date July 10, 2013

Citation: Ralston-Wilson J, Tseng A, Oberg E, Sasagawa M, Doorenbos AZ, et al. (2013) Utilization of Acupuncture Therapy among Pediatric Oncology Patients at a Tertiary Care Pediatric Hospital. Altern Integr Med 2:129. doi:10.4172/2327-5162.1000129

Copyright: © 2013 Ralston-Wilson J, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Keywords

Acupuncture; Pediatric; Oncology

Abbreviations

CAM: Complementary and Alternative Medicine; TCM: Traditional Chinese Medicine; NRS: Numeric Rating Scale; FLACC: Face, Legs, Activity, Cry, Consolability Scale; CNS: Central Nervous System; MDS: Myelodysplastic Syndrome

Introduction

Acupuncture therapy has increasingly been utilized as a complementary treatment modality both for a wide variety of cancer related conditions and for side effects related to cancer treatments [1-11]. Adult cancer patients have experienced an improvement in the quality of life as a result of the positive effects of acupuncture when it is included as an adjunctive therapy for management of a multitude of complaints [1-9]. While the use of acupuncture has become more common in cancer care, there remains a relative paucity of evidencebased research providing safety and efficacy data among oncology patients, thus limiting the extent to which patients and providers feel confident in pursuing or recommending the use of acupuncture in oncological care [3-9]. This may be especially true in the pediatric population where acupuncture research is even more sparce [12-18]. The application of acupuncture therapy among the pediatric oncology population remains largely unexplored [12-15]. Despite the reassuring positive results attributable to acupuncture therapy in the adult population, it is important to consider the uniqueness and differences in the pediatric population prior to the anticipation of similar results in children. Therefore, we present our findings on the utilization trends, referral patterns, adverse events, and subjective experience of pediatric oncology patients who underwent acupuncture therapy at a tertiary care pediatric hospital in the Pacific Northwest United States.

Materials and Methods

Setting

After obtaining approval from the institutional review boards of the pediatric hospital and collaborating university, we conducted a retrospective chart review and analysis of pediatric cancer patients that received acupuncture therapy between the years of 2004-2012 at Seattle Children’s Hospital.

Seattle Children’s Hospital is a tertiary care pediatric hospital serving a diverse population drawn from a five-state region. Acupuncture therapy was introduced at our institution in the latter part of 2004 with a single physician acupuncturist initially providing this therapy. However, the number of acupuncture providers has gradually increased to currently include 3 anesthesiologists who have also trained as physician acupuncturists and 1 licensed acupuncturist who is employed part-time. Acupuncture therapy is not a standard of care at Seattle Children’s Hospital for all patients, however it does not preclude standard of care and is rather provided in addition to the standard therapies. Provision of acupuncture therapy depends on the availability of an acupuncturist and requires a consultation request from the patient’s clinical provider.

In this study, we reviewed transactional data from the medical records of pediatric cancer patients who were treated with acupuncture therapy at Seattle Children’s Hospital during the years 2004-2012. We systematically characterized the utilization of acupuncture therapy, as well as the patients with oncological diagnoses who pursued acupuncture therapy as a treatment modality during this time period. Further, we also conducted a sub-analysis of the acupuncture treatments that were received by these patients.

Sample

The number of cases anticipated for review was determined using a statistical confidence level of 95% and a margin of error of 5% using Raosoft® sample size calculator (http://www.raosoft.com/samplesize. html) assuming the response distribution of 0.5, which is the most conservative estimate [19]. Based on these calculations, the number of patients was not to exceed 384 cases. If the number of eligible subjects was to exceed this number, patient charts would have been selected randomly by using a random generator or other randomized selection method. It was not necessary to use a random selection method as our population was smaller than the anticipated maximum.

Inclusion criteria

Children between the ages of 0-18 years, with an oncological diagnosis, receiving cancer treatments and who had undergone acupuncture therapy between January 1, 2004 and September 30, 2012 were included in our study.

Data collection

Data was obtained through the use of hospital Health Information Management System that includes the scheduling and billing software searchable by specific fields. Our search included information based on age, date of service, acupuncture procedure codes, and oncological diagnosis codes. We also collected data regarding patients’ birth year, gender, mortality status, zip code, state of residence, race, ethnicity, acupuncture service date range, diagnosis codes for acupuncture therapy, and total number of acupuncture treatments received.

Additional data collected on patients meeting the inclusion criteria was upon review of patients’ electronic, paper, and microfilm records. Further oncological data included cancer type and disease characteristics. Additionally, detailed information pertaining to specific acupuncture treatments was also collected including; age at time of treatment, inpatient or outpatient status, specialty of the referring clinician requesting acupuncture consult, reason for referral, chief complaints treated, tongue, pulse, abdominal, and traditional Chinese medicine (TCM) diagnosis assigned to the patient by the acupuncture provider, acupuncture points used during treatment, total number of acupuncture needles used during a treatment, modality used for acupuncture point stimulation, length of acupuncture treatment or needle retention time, pain scale rating using numeric rating scale (NRS) or the face, legs, activity, cry, consolability (FLACC) scale, response to acupuncture therapy as reported by the patient, family, and/or practitioner, and acupuncture-related adverse events from either the current or past treatment.

Adverse events related to acupuncture therapy were categorized as present or absent. Specific adverse events included in this review were; allergic reaction due to metal needles, bleeding requiring digital pressure or further intervention, bruising or hematoma, burn due to moxibustion, discomfort during or after treatment, dizziness, fainting, fatigue, headache, nausea/vomiting, infection, localized skin irritation, nerve injury or damage, pain at puncture site during insertion, removal, or after treatment, pneumothorax, organ puncture or damage, and other including central nervous system (CNS) injuries.

Results

During the time period January 2004-September 2012, a total of 4169 patients were identified as carrying an oncological diagnosis and 455 patients were identified as patients that received acupuncture therapy during this time period at our institution. Based on our inclusion criteria, 133 patients met the requirements as both having an oncological diagnosis and received acupuncture therapy during the study time period (Figure 1).

alternative-integrative-acupuncture-Use

Figure 1: Characterization of acupuncture Use.

Patient demographics

The demographic information (Table 1) includes a nearly matched gender distribution with 65 (48.9%) male and 68 (51.1%) female. The mean age at the first acupuncture therapy appointment was 12.3 years, with a median age of 9 years, and mode of 18 years. The majority, 106 (79.9%) patients were residents of Washington State. Eighty-one (60.9%) patients were Caucasian and as of the time of our initial data collection in February 2013, 92 (69.2%) of the patients were still alive.

  n %
Gender    
     Male 65 48.9
     Female 68 51.1
Age at First Visit    
     0-3 12 9
     4-9 22 16.5
     10-12 20 15
     13-18 79 59.4
State of Residence    
     WA 106 79.7
     MT 6 4.5
     AK 5 3.8
     CA 5 3.8
     Other 11 8.4
Race/Ethnicity    
     Caucasian 81 60.9
     Black or African American 0 0
     Hispanic, Latino, or Spanish origin 14 10.5
     Asian 11 8.3
     Native Hawaiian/Other Pacific Islander 1 0.8
     American Indian/Alaska Native 1 0.8
     Mixed 1 0.8
     Other 13 9.8
     Unknown 11 8.3
Mortality Status    
     Alive 92 69.2
     Deceased 41 30.8

Table 1: Patient demographics.

Oncological diagnoses

A majority of patients (91 or 68.4%) were diagnosed with hematological cancers. Of the hematological cancer patients, leukemia was the most common diagnosis 66 (49.6%), followed by lymphoma 13 (9.8%) and myelodysplastic syndrome (MDS) 7 (5.3%). Of the 60 (45%) pediatric patients with solid tumors, diagnoses included brain/CNS tumors 15 (11.3%), Ewing’s sarcoma 9 (6.8%), neuroblastoma 8 (6.0%), osteosarcoma 5 (3.8%), other sarcomas 5 (3.8%), rhabdomyosarcoma 3 (2.3%), hepatoblastoma 3 (2.3%), Wilms’ tumor/nephroblastoma 2 (1.5%), renal cell carcinoma 1 (0.8%), and neurofibromatosis 5 (3.8%), comprised the rest of the population. Nine (6.8%) patients were categorized as having “other” oncological diagnoses. Of the seven patients diagnosed with MDS, five of them had subsequently developed leukemia. Eighteen (13.5%) patients had multiple oncological diagnoses, fourteen of which carried a leukemia diagnosis.

Acupuncture therapy utilization

The total number of acupuncture treatments performed during this time period was 523. Complete treatment data was available for approximately 85% of treatments. At times when data was not available, details for these treatments were either not documented by the practitioner, not present in the records that were available for review, or had very limited treatment specific data recorded.

Acupuncture treatments in the pediatric oncology population, were provided by 4 different providers; three physician acupuncturists and one licensed acupuncturist. A slightly larger number of acupuncture treatments were performed in the outpatient setting (257 or 49.6%), while inpatient treatments accounted for 205 (39.6%) of the total acupuncture visits. Outpatient or inpatient status was not clearly documented for 61 (11.7%) acupuncture treatments received. The average number of acupuncture treatments received among the study population was 3.9. Although the number of acupuncture treatments ranged from 1 to 98, the majority (85.0%) of patients received between 1-5 treatments.

Trends in utilization of acupuncture therapy, amongst both new and established oncology patients, showed an expected initial increase at the introduction of the acupuncture service. The number of new patient acupuncture visits among oncology patients subsequently declined in some of the following years, while the established oncology patient visits varied with two prominent peaks in utilization (Figure 2). This fluctuation was partly due to variation in the number and availability of acupuncture providers, as well as high utilization among several of the patients with the greatest acupuncture usage. Dates of service were not available for 21 (5.4%) acupuncture treatments received.

alternative-integrative-Acupuncture-therapy-utilization

Figure 2: Acupuncture therapy utilization.

Acupuncture referrals

During the study period, the two largest documented sources for referrals were either from the hematology-oncology department (64 or 35.0%) or from a parent or family member (60 or 32.8%). Other prominent referral sources were the pain medicine team, bone marrow transplant service, and self/patient. Documentation of referral sources was only available for 86 patients (64.7%) and 131 treatments (25%), although at our institution, acupuncture therapy is a consultation service requiring a clinician referral. Similarly, only 166 reasons for referral were documented in patients’ charts during these treatments. Some of the acupuncture treatments had more than one referral source documented, as well as multiple reasons for referral. The most common reasons for acupuncture referrals were for management of pain (71 or 42.8%) or nausea and vomiting (64 or 38.6%). Other reasons for referrals included emergence delirium, mood, neurological or gastroenterological complaints, and issues with medication dependence or weaning (Table 2).

  n %
Pain 71 42.8
Nausea/Vomiting 64 38.6
Emergence Delirium 13 7.8
Emotional/Mood Complaints 5 3
Neuropathies/Neurological Dysfunction 3 1.8
Diarrhea/Constipation 2 1.2
Pain Medication Dependence/Weaning 2 1.2
Immune Support 1 0.6
Vertigo 1 0.6
Shortness of Breath 1 0.6
Fever 1 0.6
Fatigue 1 0.6
Insomnia/Sleep Disturbance 1 0.6

Table 2: Documented reasons for acupuncture referrals.

Chief complaints treated

In addition to the main reasons for referral, several other chief complaints were reported by patients and thus treated by the acupuncture provider during their acupuncture appointments. A total of 761 documented chief complaints were treated during the 454 acupuncture treatments with recorded data available for review. Pain indications and nausea and vomiting compromised over half of all chief complaints treated, with 354 (46.5%) being chief complaints of pain and 149 (19.6%) of nausea and vomiting. Other chief complaints treated included neuropathies or neurological dysfunction, fatigue, sleep disturbance, oral cavity problems, emergence delirium, mood complaints, general discomfort, and pain medication dependence or weaning issues. Included in neuropathies/neurologic dysfunction were paralysis, ataxia, aphasia, and restless legs. Documentation of chief complaints was not available for 69 (13.2%) treatments (Table 3).

  n %
Pain 354 46.5
Nausea/Vomiting 149 19.6
Neuropathies/Neurological Dysfunction 76 10
Fatigue 45 5.9
Insomnia/Sleep Disturbance 42 5.5
Mouth/Gum/Throat Problems 24 3.2
Emergence Delirium 15 2
Diarrhea/Constipation 15 2
Emotional/Mood Complaints 9 1.2
General Discomfort 9 1.2
Pain Medication Dependence/Weaning 5 0.7
Dizziness/Vertigo 3 0.4
Skin Changes 2 0.3
 Immune Support 1 0.1
Other 12 1.6

Table 3: Chief complaints treated.

Additional treatment specific data

Various diagnostic tools were employed by the acupuncture providers to determine an acupuncture diagnosis and appropriate acupuncture treatment plan to address the patient’s complaints. Pulse diagnosis as a diagnostic tool, was most frequently (328 or 72.4%) employed followed by tongue diagnosis (231 or 51%) and abdominal diagnosis (139 or 30.7%). A TCM diagnosis was infrequently documented (24 or 5.3%) during these visits (Table 4).

  Yes No
  n % n %
Tongue Diagnosis 231 51 222 49
Pulse Diagnosis 328 72.4 125 27.6
Abdominal Diagnosis 139 30.7 314 69.3
TCM Diagnosis 24 5.3 429 94.7

Table 4: TCM diagnostics used.

While there was a wide range of acupuncture points used during treatments, there were a number of points that were most commonly used (Figure 3). The acupuncture points most frequently encountered in this analysis were ST-36 (Zusanli), LI-4 (Hegu), KD-3 (Taixi), SP-6 (Sanyinjiao), LV-3 (Taichong), PC-6 (Neiguan), DU-20 (Baihui), LI- 11 (Quchi), SJ-5 (Waiguan), and UB-60 (Kunlun). The top five most common acupuncture points used for management of pain or nausea and vomiting varied by only 1 point. While both groups included ST- 36, LI-4, KD-3, and SP-6 as the common treatment acupoints, PC-6 was uniquely included in the acupuncture treatment of nausea and vomiting group, and LV-3 was uniquely included in the acupuncture treatment of pain group. Interestingly, of 149 treatments provided for the chief complaint of nausea/vomiting, 88 (59.1%) of those treatments were also for a chief complaint of pain. Acupuncture point data was not available for 102 or 19.5% of treatments.

alternative-integrative-Most-commonly-used-acupuncture

Figure 3: Most commonly used acupuncture points.

The stimulation of acupuncture points for treatment purpose was achieved by manual needle stimulation (312 or 70.9%), press needle placement (144 or 32.7%), magnet placement (179 or 40.7%), moxibustion (11 or 2.5%), electrical stimulation or electrostimulation of needles (23 or 5.2%), cupping (72 or 16.4%), acupressure (7 or 1.6%), guasha (2 or 0.5%), and low intensity laser stimulation (13 or 3.0%) (Figure 4). Modalities of acupuncture point stimulation were available for 440 acupuncture treatments available for review. Needles or press needles were used in over 75% of acupuncture treatments. When needles or press needles were used, a total needle count of 11-15 needles was most common, occurring in 36.7% of treatments. The duration of the acupuncture treatment when needle stimulation was used (needle retention time) was most commonly 16-20 minutes as noted in 46.9% of treatments with documentation of this data.

alternative-integrative-Acupuncture-point-stimulation

Figure 4: Acupuncture point stimulation.

Acupuncture treatment response

Pain score documentation by an acupuncture provider was available for 200 (56.5%) treatments performed for a chief complaint of pain, of which only 9 (2.5%) treatments had both pre- and post-treatment pain scores documented. Pain scores were significantly reduced after an acupuncture treatment among 8 of the nine treatments with pre and post-acupuncture treatment pain scale documentation. The mean reduction in pain scores among these patients was 3.67.

Additionally, content analysis was performed to describe summary characteristics of patient/family/provider reported responses (Table 5). Out of 518 acupuncture treatments that were available for review, 269 (51.9%) of these treatments had documented responses, while no data was available for the other 249 (48.1%) treatments. Data was considered not available if no response to treatment was documented or the documentation was interpreted to be irrelevant to this information. Of the available data for these treatments, 332 responses were documented and considered significant for review. Three hundred and nine (93.1%) treatment responses were interpreted to be positive, 12 (3.6%) neutral, and 11 (3.3%) negative.

  n %
Positive Response    
     Beneficial/Good response 157 47.3
     Improvement 21 6.3
     Relaxing/Able to nap 16 4.8
     Patient/Family requesting acupuncture 8 2.4
     Tolerated therapy well 106 31.9
     Open to having acupuncture 1 0.3
Neutral Response    
     No change 9 2.7
     Denied offering of further treatment 3 0.9
Negative Response    
     Worried/Unsure/Painful/Requesting less 9 2.7
     Felt worse (likely due to acupuncture) 2 0.6

Table 5: Patient/Family/Provider reported responses.

Positive responses were determined based on interpretation of statements from patients, family, and providers. Comments such as “felt treatments were beneficial”, “were feeling better”, “noticed improvement attributable to acupuncture”, “felt relaxed”, or “experienced improvement in symptoms”. Requests for further acupuncture treatments or tolerating the acupuncture treatments well were also considered consistent with a positive response. A neutral response was based on interpretation of statements that no change was documented or the patient denied the offering of further acupuncture treatment without mention of feeling better or worse due to acupuncture therapy. A negative response was determined based on interpretation of statements of patients feeling worried or unsure about acupuncture, expressing that treatments were painful, requesting less acupuncture therapy, or feeling worse when it was likely due to acupuncture treatments. If there were multiple statements reflecting positive or negative responses, they were considered a separate response, e.g. if a patient reported that their pain improved due to acupuncture and the practitioner or patient also reported that they were able to nap, 2 positive responses were recorded for this treatment.

Acupuncture-related adverse events

Thirty-four total adverse events were documented during 454 acupuncture treatments with documented data relevant to this review (Table 6). A total of 775 opportunities were available to document either current or past adverse events occurring attributable to acupuncture. There was a 4.4% incidence of adverse events documented based on our criteria, but none of these were a serious adverse event. All 34 reported adverse events were transient and mild including discomfort, dizziness, headache, skin irritation, and pain at the needling site. The majority of these (27 or 79.4%) resolved at the time of needle withdrawal or by the conclusion of the treatment. If discomfort was noted, it was reported to be tolerable by the patient during the acupuncture treatment. Adverse event data was not available for 69 (13.2%) treatments.

  Current Past
  n % n %
Allergic Reaction 0 0 0 0
Bleeding 0 0 0 0
Bruising or Hematoma 0 0 0 0
Burn 0 0 0 0
Discomfort 12 1.5 0 0
Dizziness 1 0.1 0 0
Fainting 0 0 0 0
Fatigue 0 0 0 0
Headache 0 0 1 0.1
Infection 0 0 0 0
Localized Skin Irritation 1 0.1 4 0.5
Nerve Injury or Damage 0 0 0 0
Pain at Puncture Site 14 1.8 1 0.1
Pneumothorax 0 0 0 0
Other Organ Puncture or Damage 0 0 0 0
Spine or Spinal Cord Injury 0 0 0 0
Other (please specify) 0 0 0 0
None Mentioned 426 93.8 315 98.1

Table 6: Documented acupuncture-related adverse events.

Discussion

While the cure rates for childhood cancers continue to rise with therapeutic success rates achievable in approximately 75% of all cancers occurring in childhood [16,20], cancer treatment-related side effects may present unique challenges in the pediatric and young adult patient. Side effects that may occur due to conventional cancer treatments include fatigue, bone marrow suppression, nausea and vomiting, anorexia, mucositis, hair loss, cardiotoxicity, and/or liver and kidney damage [9,21]. Cancer treatment-related side effects may be mild and resolve at the completion of conventional therapy, while others may be serious and even life threatening [21-23]. Some chemotherapyinduced side effects may require a reduction in dosage or a delay in the subsequent cycle of chemotherapy [21,24,25].

Rate of utilization of complementary and alternative medicine (CAM) therapies among adult and pediatric oncology patients is reported to range from 7-91% [5,8,26,27] and 31-84% respectively [13,16,18,28-31]. Acupuncture therapy usage was not often singled out among the pediatric oncology population in these studies. CAM utilization among the general oncology population has been increasing [5]. Some of the adult cancer studies looking at CAM use have further examined the rates of acupuncture therapy utilization with reported rates to be as low as 1.7% [5,26] and up to 31% [5,32]. One of the studies among adult cancer patients in Washington State reported acupuncture therapy usage to be 1.7% in the year 2000 [26]. The authors are not aware of any pediatric oncology studies specifically evaluating acupuncture therapy utilization among this oncology population. The results of our study indicate a relatively low incidence (3.2%) of acupuncture therapy use among the pediatric oncology patients in the same geographic location as the adult cancer patients (Washington State). Although rates of acupuncture therapy use in pediatric patients may vary [13,15], the lower incidence in the oncological population may be attributable to concerns about risks of infection and bleeding among this susceptible population with neutropenia and thrombocytopenia associated with their disease process or therapeutic interventions.

In our study, pain and nausea/vomiting were the two most common reasons triggering a referral for acupuncture therapy, highlighting the role these two symptoms play in the care of a cancer patient. These two symptoms constitute the top complaints with a high impact on the quality of life among cancer patients [1-9,13-15,33] thus, highlighting both the importance of management of these symptoms as well as inability to adequately treat these symptoms, in this population. Pharmacological agents used as therapeutic options for these symptoms may further result in more adverse effects [5,15,33-35]. Acupuncture as an adjuvant therapy, can aid in controlling these symptoms, improving the quality of life and reducing the incidence of dose-related side effects of pharmacological agents [1-9,11,14,15,33]. In our results, it was also notable that although pain and nausea/vomiting remained the most commonly reported and treated complaints, there were several other complaints that were identified and treated by the acupuncturists, either as additional complaints or in a higher incidence than at the time of referral (fatigue, insomnia, neuropathies).

The referral sources indicate that clinical providers were responsible for about 60% of acupuncture referrals, while 40% of acupuncture referrals were patient or family driven. We are not aware of any studies in the pediatric oncology population that characterize the patterns of referral for acupuncture therapy. Our study demonstrates that a majority (75%) of acupuncture treatments were performed by physician acupuncturists. This might in part be a reflection of the institutional culture and practice where a higher degree of comfort is allocated to an allopathic provider of CAM therapy and perhaps a slightly larger body of available evidence for acupuncture use in published CAM literature [5,36].

Pulse and Tongue examinations were used most frequently as diagnostic tools for establishing an acupuncture diagnosis and acupuncture treatment plan. There can be a variation among acupuncture providers as to which diagnostic tools are felt pertinent in their clinical care. This variation may be attributable to the differences in their acupuncture training such as Chinese, Japanese, Korean, French Energetic acupuncture or medical acupuncture. Use of consistent diagnostic tools by different acupuncturists while performing acupuncture therapy could be instrumental in highlighting the fact that despite carrying the same cancer diagnoses, conventional therapy use, or chief complaints, patients may require different acupuncture treatment plans that are tailored to address their specific acupuncture diagnoses. Acupuncture treatment plans, not only addresses patients’ chief complaints, but also take into consideration the constitutional differences and uniqueness among patients. Our study did not explore the relationship between acupuncture provider training and the type and frequency of TCM diagnostic tools used, nor are we aware of other studies investigating the use of TCM diagnostic tools in the hospital setting among pediatric oncology patients. However, such an investigation in the future may contribute valuable information regarding outcomes of acupuncture therapy based on individualized versus protocol-based treatment plans.

The data on safety and efficacy of acupuncture in the pediatric population for non-cancer related conditions [13-15,37] as well as that in the adult cancer population [4-6,8,38], suggests that when performed by qualified individuals, the incidence of adverse events is small. However, acupuncture research addressing these issues in the pediatric oncology population is very limited [12-15]. An overall rate of acupuncture-related adverse events of 4.4% among children with cancer diagnoses, is consistent with that reported in the prior two small studies.

The interventional study for chemotherapy-induced nausea and vomiting by Gottschling et al. [33] reported no adverse events; however pain from needling was reported in 4 out of 23 (17.4%) patients, compared to our patients where this rate was only reported 1.8% of the time. In terms of bleeding complications, our patients did not experience any significant complications during acupuncture treatments, similar to the findings reported by Ladas et al. [12] in their retrospective review among pediatric cancer patients where at least 47% of them had thrombocytopenia at the time of acupuncture treatments. We did not specifically examine the blood counts of our patients at the time of acupuncture treatments in this review. Lower rates of adverse events in our study may be a result of under-reporting of adverse events based on incomplete data or a consequence of all acupuncture treatments being performed by well-trained and qualified acupuncture providers with specific training, experience, and knowledge of the pediatric and oncology population. While serious acupuncturerelated adverse events have been documented in literature, we did not encounter any serious or life threatening adverse events during our study. Although acupuncture is generally considered to be a safe modality when practiced by well-qualified and trained practitioners, special considerations in safety are warranted when considering this modality for both the pediatric and oncology population. Further prospective investigations assessing safety and efficacy in the pediatric oncology population are warranted to bolster evidence-based practice of acupuncture therapy in the management of cancer treatment-related side effects and improvements in quality of life.

Our study has some limitations including its retrospective design, lack of controls or randomization. Further, due to varying practices in documentation during the initial years of introduction of the acupuncture service, there was limited or incomplete data available for review, possibly affecting the results of our study. Furthermore, content analysis of patient responses to acupuncture therapy might be overreported for positive responses by the patients since they were collected and reported by the acupuncture provider and subsequent subjective interpretation of the documented responses by the reviewer.

Conclusion

In summary, acupuncture therapy use among the pediatric oncology population at our institution is well tolerated, sought both by clinical providers as well as the patients and their families, and safe when performed by providers with specific training and expertise in the pediatric and oncology population. In our patients, acupuncture therapy also proved to be a valuable adjuvant modality, not only for the pain and nausea/vomiting complaints, but also for supportive care through conventional treatments by addressing several other problems such as neuropathies/neurological dysfunction, fatigue, mood issues and sleep disturbance. Future research with prospective, randomized-controlled trials is warranted to evaluate safety, efficacy and acceptability of acupuncture therapy in this unique population that has a higher likelihood of complications and a higher incidence of disease and treatment-related side effects impacting their quality of life.

Acknowledgement

This project was supported by institutional funds from Bastyr University under award number BUCSR-Y4-001, Seattle Children’s Hospital and by the National Cancer Institute of the National Institutes of Health under award number R42CA141875. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health or the individual institutions.

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