Chemotherapy-related nausea and vomiting - past reflections, present practice and future management

Discovering different acupoint combinations of manual or electro-acupuncture to treat chemotherapy-induced nausea and vomiting based on the complex networks analysis

OBJECTIVES

The aim of this research was to find the acupoint combinations of manual and electro-acupuncture to treat chemotherapy-induced nausea and vomiting via the complex networks analysis.

METHODS

We conducted searches using PubMed, ScienceDirect, MEDLINE, Ovid, spring, Wiley, EMBASE, the Chinese biomedicine database, VIP information network, and China National Knowledge Infrastructure from the establishment of the databases to the August, 2023. Information about titles, journals, interventions, and main acupoints was extracted using the self-established "acupoint for prevention CINV data base" powered by EpiData. According to the level of literature evidence and sample size, the clinical trials and weights of the outcome indicators including nausea/vomiting efficiency were combined. After identifying articles, literature processing and complex network analysis were conducted. The degree distribution of each node, the probability distribution of node degree, the node clustering coefficient, and the distance matrix are calculated by software.

RESULTS

Of the 4001 screened publications, 489 were eligible after careful selection. Our result showed the acupoints ST36 and PC6 were the most common combination acupoints in both electro and manual acupuncture. In terms of efficiency, ST36, PC6, and CV12 are significantly effective acupoints for manual acupuncture, and the PC6 and ST36 are effective acupoint for electro-acupuncture.

CONCLUSIONS

We found that the near-far collocation method has been commonly used for different types of acupuncture treatment in CINV. Zhongwan, Shangwan, and Liangmen have been mainly used as local acupoints, while Neiguan, Hegu, Quchi, Zusanli, Gongsun, TaiChong, and Neiguan have been mainly used as distal acupoints. From the effect analysis, acupuncture treatment of nausea manual acupuncture effect is better; acupuncture treatment of vomiting or electro-acupuncture effect is better.

Implementation of a Low-Carbohydrate Diet Improves the Quality of Life of Cancer Patients - An Online Survey

Background: The ketogenic diet (KD), a high-fat low-carbohydrate diet, has gained in popularity in recent years, which is reflected by an increasing number of scientific articles, books, websites, and other publications related to low carbohydrate (LC) diets and KDs. Numerous preclinical studies in different animal models of cancer have examined the effect of KDs on cancer growth, but no large randomized controlled studies or prospective cohort studies are available for human cancer patients. Evidence supporting the use of KDs as an adjunct to traditional cancer therapy has come predominantly from anecdotes and case reports. The first KD clinical trials in patients with glioblastoma revealed good acceptance and a possible anti-tumor effect. Metabolic therapy options such as the KD are not yet part of the standard of care in cancer patients. However, many cancer patients have begun implementing a KD or LC diet on their own. The aim of the present study was to gather information, via an online questionnaire, about how cancer patients go about implementing a KD or LC diet, what resources they rely on, whether they perceive benefits from the diet on quality of life (QoL), and what factors influence feasibility and adherence to the diet. Method: Recruitment of participants was carried out via social media platforms, forums and cooperating physicians (April 2018 through November 2018). To be eligible for the study, participants had to be diagnosed with cancer and on a KD or LC diet at the time of participating in the study or been on a KD or LC diet during cancer treatment. Study participants were asked to fill out an online questionnaire. The questionnaire was divided into four parts and contained a total of 64 questions. The questions were focused on the current health status of the participant, type of cancer, time since diagnosis, and treatment regimen. In addition, questions addressed social support, extent of professional counseling, food preferences and QoL. Results: A total of 96 participants (77 F, 17 M) submitted the questionnaire, of which 94 were included in the final data analysis. Ages ranged between 24 and 79 years (mean 50.1 ± 12.1 years). In 73.4% of the participants, the tumor had not formed metastases at the time of initial diagnosis. Twenty-four (26%) participants had a PET-positive tumor, 8 (9%) a PET-negative tumor, and the remainder (66.0%) did not report a PET scan. Eighty seven percent had undergone surgery in the course of their cancer treatment. The most frequent tumor type was breast cancer, followed by cervical cancer, prostate cancer, colorectal cancer and melanoma. Fifty nine percent of the study participants stated that they followed a KD during cancer therapy, 21% followed a low carbohydrate/high fat (LCHF) diet and 12% followed a low glycemic index (LOGI) diet. Sixty nine percent reported an improvement of QoL because of the diet. Almost half of the study participants sourced their initial information on KDs and LC diets from the internet. We found a significant correlation between weight loss upon implementation of a KD and the extent of overweight (p < 0.001). Weight loss in already lean participants was not reported. Overall, 67% of the participants found long-term adherence to the diet to be "easy" and 10.6% described it as being "very easy." Participants who like fatty foods tended to perceive the diet as being easier to follow (p = 0.063). Conclusion: The KD or LC diet improved self-reported QoL in more than two-thirds of study participants. The KD had a normalizing effect on body weight. The majority of the participants rated the diet as easy or very easy to follow long term. There was an obvious gap between patients' desire for professional dietary counseling and what is currently offered by health care providers. In the future, efforts should be made to invest in nutrition experts who are trained in the KD to support cancer patients with implementation of a KD.

Factors Associated with Chemotherapy Induced Nausea in Cancer Patients: A Case-Control Study

Background: Chemotherapy-induced nausea (CIN) is one of the most common and uncomfortable symptoms in cancer patients, and different factors can be associated with it. Objectives: This study aimed to determine different factors associated with CIN in cancer patients. Methods: A total of 144 cancer patients were selected by convenience sampling. The patients at acute phase of chemotherapy were assigned to case group (n = 58) if they had nausea or to control group (n = 86) if they did not have nausea. The patients' data were collected using a researcher-made questionnaire including items on potential factors for CIN through interviews with the patients and according to their medical records. Logistic regression models were used to conduct data analysis, and the correlations in question were expressed as odds ratio (OR) at 95% confidence interval (CI). Results: The results showed that the chance of nausea increased by 6.4, 2.4, 1.2, and 1.5 times in case of expected nausea, pain, carbohydrate intake, and smelling a specific odor, respectively. The increasing nausea-inducing effect of drugs led to increased chance of post-chemotherapy nausea (OR = 2.366). Conclusions: Having pain, expecting nausea, carbohydrate intake, smelling a certain odor, and high emetogenic potential of chemotherapy are effective in the development of CIN.

Effect of acupoint therapies on chemotherapy-induced nausea and vomiting: A systematic review protocol

BACKGROUND

Patients suffering from chemotherapy-induced nausea and vomiting (CINV) might have negative adherence of treatment. Acupoint therapies, including acupuncture, acupressure, acupoints injection, massage, and moxibustion, are safe medical procedures with minimal side effects for CINV, but studies about overall safety and effectiveness of acupoint therapies have not been scientifically and methodically evaluated in recent years. Evaluating the overall safety and effectiveness of acupoint therapies in patients with CINV is the purpose of this review.

METHODS AND ANALYSIS

Relevant randomized controlled trials (RCTSs) are being searched in the following electronic databases: PubMed, Cochrane Library, Web of Science, EMBASE, China National Knowledge Infrastructure (CNKI), Chinese Scientific Journal Database (VIP database), Wanfang Data Knowledge Service Platform, and Chinese Biomedical Literature Database (CBM). We will also attempt to obtain the unpublished academic data by contacting the colleague, professor, or Institute of Traditional Chinese Medicine. The RCTs of the acupoint therapies for CINV patients will be searched in the databases from inception to July 2019. The primary outcomes are defined as severity, duration and frequency of nausea or vomiting, or both. The secondary outcomes are defined as any adverse events and quality of life. Performing the meta-analysis by using RevMan version 5 software. Mean difference (MD) or standardized mean difference (SMD) will express the continuous variables, while relative risk (RR) will express the categorical variables.

RESULTS

The results of this review will provide a high-quality synthesis to evaluate the effectiveness and safety of acupoint therapies for CINV.

CONCLUSION

This review will provide evidence to estimate whether acupoint therapies are effective interventions for CINV.

DISSEMINATION

Evidence whether acupoint therapies are effective interventions for CINV will be provided by this systematic review. This knowledge will recommend better acupoint therapies and selections of acupoints which might be helpful in treating CINV. The findings of this systematic review will be disseminated via various forms of presentation and publication of the data in a journal or electronic databases.

PROSPERO REGISTRATION NUMBER

CRD42019125538.

Opportunities for cannabis in supportive care in cancer

Cannabis has the potential to modulate some of the most common and debilitating symptoms of cancer and its treatments, including nausea and vomiting, loss of appetite, and pain. However, the dearth of scientific evidence for the effectiveness of cannabis in treating these symptoms in patients with cancer poses a challenge to clinicians in discussing this option with their patients. A review was performed using keywords related to cannabis and important symptoms of cancer and its treatments. Literature was qualitatively reviewed from preclinical models to clinical trials in the fields of cancer, human immunodeficiency virus (HIV), multiple sclerosis, inflammatory bowel disease, post-traumatic stress disorder (PTSD), and others, to prudently inform the use of cannabis in supportive and palliative care in cancer. There is a reasonable amount of evidence to consider cannabis for nausea and vomiting, loss of appetite, and pain as a supplement to first-line treatments. There is promising evidence to treat chemotherapy-induced peripheral neuropathy, gastrointestinal distress, and sleep disorders, but the literature is thus far too limited to recommend cannabis for these symptoms. Scant, yet more controversial, evidence exists in regard to cannabis for cancer- and treatment-related cognitive impairment, anxiety, depression, and fatigue. Adverse effects of cannabis are documented but tend to be mild. Cannabis has multifaceted potential bioactive benefits that appear to outweigh its risks in many situations. Further research is required to elucidate its mechanisms of action and efficacy and to optimize cannabis preparations and doses for specific populations affected by cancer.

Treatment anxiety in breast cancer patients

INTRODUCTION

The aim of the present study was to determine and evaluate the levels of anxiety of breast cancer patients according to the state of treatment, age and education level, as well as the anxiety potential of certain procedures during breast cancer treatment.

METHOD

148 breast cancer patients participated in this prospective cohort study and filled out the questionnaires including the Spielberger state-trait-anxiety-inventory, as well as questions based to stress triggering procedures during breast cancer therapy. The testing was accomplished with the Mann-Whitney U test, the significance level was set to 0.05.

RESULTS

Patients who appeared for tumor board decision showed the highest state-anxiety levels (55.79 SD ± 18.73) followed by patients undergoing surgery (50.24 SD ± 13.84). Patients already undergoing chemotherapy had lower state-anxiety levels than the group of all other patients (p = 0.012). Women undergoing chemotherapy showed lower anxiety levels relating to many procedures of breast cancer treatment. The 25% quartile of patients with the highest levels in the trait score showed a significant poorer education level (p = 0.009). Age showed no statistical influence on the anxiety level of breast cancer patients.  CONCLUSION: Patients with probably high anxiety levels (younger age, low education level, and those appearing for frightening procedures) should receive extra careful clarification and treatment support such as a psycho-oncologist.

Do complementary and integrative medicine therapies reduce healthcare utilization among oncology patients? A systematic review of the literature and recommendations

PURPOSE

Complementary and integrative medicine (CIM) is frequently used by oncology teams for reducing physical and emotional side-effects related to cancer treatment. In light of the changing healthcare system, evidence is needed regarding the economic implications of these interventions. The purpose of this study was to: (1) systematically examine the literature for links between CIM interventions and healthcare utilization (2) provide recommendations for growing this area of research.

METHOD

PubMed and EBSCO databases were reviewed for articles reporting on healthcare utilization associated with CIM therapy use in oncology populations. CIM intervention characteristics and healthcare utilization were extracted and summarized from 7 articles meeting inclusion criteria.

RESULTS

Studies included various CIM modalities. Most studies targeted physical symptoms (i.e., pain, infection, nausea/vomiting; n = 4). Healthcare utilization included medication use/cost (n = 4) and hospitalization length/cost (n = 5). All four studies (prospective/retrospective between-group, n = 2; within-subject pre-post, n = 1; RCT, n = 1) examining medication reduction noted decreased medication costs or use. Mixed findings emerged for studies examining hospitalizations (retrospective between-group, n = 2; within-subject pre-post, n = 1; RCT, n = 2), with only one study (retrospective between-group) indicating lower hospitalization duration in the CIM group.

CONCLUSIONS

Findings indicate the potential for CIM therapy to reduce healthcare utilization in oncology populations, particularly medication use. However, this research is limited both in size and quality. To increase the uptake of these interventions and to advocate for insurance coverage of CIM interventions, high quality economic evaluations are needed.

Validity and Reliability of the Turkish Version of the Adapted Rhodes Index of Nausea and Vomiting for Pediatrics by Child (ARINVc) and by Parent (ARINVp)

The study was conducted methodologically to adapt the Adapted Rhodes Index of Nausea and Vomiting for Pediatrics by Child (ARINVc) and Adapted Rhodes Index of Nausea and Vomiting for Pediatrics by Parent (ARINVp) into Turkish. The scales are administered to children who receive chemotherapy and to their parents, respectively. The study sample consisted of 8- to 18-year-old children who were hospitalized in the pediatric oncology and hematology clinics of a university hospital, met the sampling criteria, and agreed to participate in the research. The study data were collected with the Sociodemographic Attributes Information Form, ARINVc, and ARINVp using the face-to-face interview method. The mean ages of the children and their mothers and fathers who participated in the study were 13.26 ± 2.01, 36.33 ± 5.10, and 40.17 ± 4.94 years, respectively. The mean total scores obtained from the ARINVc and ARINVp were 5.43 ± 4.06 and 5.70 ± 3.77, respectively. While Cronbach's alpha reliability coefficients of the scales were .85 for the ARINVc and .84 for the ARINVp, the item-total correlation coefficients were between 0.60 and 0.89 for the ARINVc and between 0.66 and 0.85 for the ARINVp ( P < .01). The Turkish versions of ARINVc and ARINVp were determined to be valid and reliable scales.

Chemotherapy-Induced Nausea and Vomiting in Women With Gynecological Cancer: A Preliminary Single-Center Study Investigating Medical and Psychosocial Risk Factors

BACKGROUND

Chemotherapy is the treatment of choice for many gynecological tumors, but cytotoxic drugs lead to a wide range of stressful side effects; nausea and vomiting are 2 of the most common and distressing consequences of many chemotherapy regimens.

OBJECTIVE

The aim of this study is to investigate various risk factors that could influence the experience of nausea and vomiting after the first chemotherapeutic infusion.

METHODS

Women treated for various gynecological cancers (n = 94) took part in the study. Pharmacological and personal risk factors in the development of chemotherapy-induced nausea and vomiting (CINV) were assessed with the use of the State-Trait Anxiety Inventory and a self-report questionnaire. Regression analyses (both univariate and multiple) were performed to establish risk factors associated with CINV.

RESULTS

The study highlights the importance of working status (being involved in a working activity during treatment) as a protective factor for developing chemotherapy-induced nausea. Furthermore, younger age, levels of state anxiety, chemotherapy-induced nausea in previous treatments, and alcohol intake were found to have an effect on CINV, increasing its risk. Emetogenic potential was associated only with the presence of delayed vomiting.

CONCLUSIONS

Although this is a preliminary study into the risk factors of CINV in gynecological tumors, these findings offer support that personal risk factors contribute to individual differences in the frequency and severity of CINV.

IMPLICATIONS FOR PRACTICE

Personal factors should be taken into consideration by the multidisciplinary treating team in gynecology.

Conditioned taste aversions: From poisons to pain to drugs of abuse

Learning what to eat and what not to eat is fundamental to our well-being, quality of life, and survival. In particular, the acquisition of conditioned taste aversions (CTAs) protects all animals (including humans) against ingesting foods that contain poisons or toxins. Counterintuitively, CTAs can also develop in situations in which we know with absolute certainty that the food did not cause the subsequent aversive systemic effect. Recent nonhuman animal research, analyzing palatability shifts, has indicated that a wider range of stimuli than has been traditionally acknowledged can induce CTAs. This article integrates these new findings with a reappraisal of some known characteristics of CTA and presents a novel conceptual analysis that is broader and more comprehensive than previous accounts of CTA learning.

Symptom Clusters in Ovarian Cancer Patients With Chemotherapy After Surgery: A Longitudinal Survey

BACKGROUND

Ovarian cancer is 1 of the most common malignancies in the female reproductive system. Identification of symptom clusters in ovarian cancer patients may improve management of symptoms.

OBJECTIVE

The objective of this article is to explore the changes in symptom clusters in ovarian cancer patients with adjuvant chemotherapy after surgery at different time points.

METHODS

Basic details of the patients were documented and a longitudinal investigation was carried out. We used the Memorial Symptom Assessment Scale to examine 115 Chinese ovarian cancer patients' symptom experience at 4 time points: days before chemotherapy (T1), chemotherapy cycle 1 (T2), chemotherapy cycle 3 (T3), and chemotherapy cycle 6 (T4). The exploratory factor analysis was performed to determine the numbers and components of symptom clusters.

RESULTS

Symptom clusters varied at different time points, which were classified as pain-related symptom cluster, psychological symptom cluster, menopausal symptom cluster, gastrointestinal symptom cluster, body image symptom cluster, and peripheral neurologic symptom cluster. The gastrointestinal symptom cluster and body image symptom cluster appeared at T1 and remained consistent at T3 and T4, whereas the peripheral neurologic symptom cluster was noted at T3 and T4.

CONCLUSIONS

Clinicians should prioritize symptom management interventions with ovarian cancer patients to focus on the most severe symptom cluster: psychological symptom cluster at T1, gastrointestinal symptom cluster at T2, and body image symptom cluster at T3 and T4.

IMPLICATIONS FOR PRACTICE

The ability to predict symptom clusters in ovarian cancer patients receiving chemotherapy may help to make optimized clinical decision in advance to alleviate patients' symptoms and improve their life quality.

Relationship between traditional Chinese medicine constitutional types with chemotherapy-induced nausea and vomiting in patients with breast cancer: an observational study

Background

The theory of traditional Chinese medicine (TCM) constitution involves genetic characteristics, psychological factors, organ functions, and many other aspects. Studies have shown that TCM constitution is associated with HLA polymorphisms and has a genetic basis. A large number of Chinese studies have suggested that the clinical evolution of breast cancer may differ among patients with different TCM constitutions. In addition, patients with breast cancer and different TCM constitutions may have different degrees of myelosuppression after chemotherapy. Some studies have revealed that some constitutions may become predictive factors for death and morbidity of some diseases. The study was to investigate the risk factors among TCM constitutions for chemotherapy-induced nausea and vomiting (CINV) in patients with primary breast cancer undergoing chemotherapy.

Methods

From September 2008 to January 2014, 612 patients who underwent surgery and chemotherapy for breast cancer in three hospitals in Xi’an, Shanxi province, underwent TCM constitution assessment using the Nine Basic Constitutions in Chinese Medicine Questionnaire before chemotherapy. CINV was monitored during treatments. Patients were asked to complete the Functional Living Index-Emesis (FLIE) questionnaire. The most severe CINV grade during chemotherapy was recorded according to the WHO standard. The relationships between TCM constitutions, CINV, and clinical and pathological characteristics of the cancers were assessed.

Results

There were no differences in the incidence of CINV among breast cancer patients receiving different chemotherapy regimens, and among patients with different TCM constitutions. The wetness-heat score was an independent risk factor for severe CINV (grade III-IV) (OR = 1.012, 95 % CI: 1.007–1.021, P < 0.001). In-depth analyses of the wetness-heat constitution showed that bitter taste/smelly mouth was an independent risk factor for severe CINV (OR = 1.209, 95 % CI: 1.035–1.412, P = 0.017), as well as progesterone receptor-positive cancer (OR = 1.429, 95 % CI: 1.030–1.981, P = 0.032). Vomiting history was a protective factor against CINV (OR = 0.548, 95 % CI: 0.353–0.849, P = 0.007).

Conclusion

Risk of grade III-IV nausea and vomiting was higher in breast cancer patients with TCM constitution of wetness-heat, especially bitter taste or smelly mouth.

Nausea and Vomiting during the First 3 Intercycle Periods in Chemo-naive Cancer Patients Receiving Moderately/Highly Emetogenic Therapy

Aims and Background

There is a paucity of data regarding the incidence, intensity, and treatment of nausea and vomiting during the intercycle periods of chemotherapy (CHT). The aims of the study were to assess the incidence and intensity of intercycle nausea and vomiting, to assess the use of rescue antiemetic medications, and to define the more uncomfortable symptom between nausea and vomiting.

Methods

In a prospective study, 108 chemotherapy-naive patients treated with highly or moderately emetogenic CHT for different primary cancers were enrolled. All patients filled out the Edmonton Symptom Assessment System tool before the first cycle of CHT (T0) and on 14-16 days thereafter for the first 3 cycles of CHT (i.e., T1, T2, T3).

Results

Sixty-seven patients completed the study. During CHT administration, all patients received antiemetics according to international guidelines. During the intercycle periods, nausea was reported in 6.0% of patients at T0, 10.5% at T1, and 26.9% at T2 and T3, respectively. The intensity of nausea was mild for 6.0%, 21%, and 18% of patients at T1, T2, and T3, respectively; moderate for 1.5%, 3.0%, and 6.0% at T1 to T3; and severe in only 3.0% of patients at any time. Vomiting was present in 1.5% and 10.5% of patients at T2 and T3. Rescue antiemetic medication was required for 41.8% at T1, 53% at T2, and 47.8% at T3. At the end of the study, 70.1% of patients described nausea as the more uncomfortable symptom compared to vomiting.

Conclusions

Nausea has a higher burden of impact over vomiting and should be assessed and treated separately throughout multiple cycles of CHT.

Investigating the effects of inhaling ginger essence on post-nephrectomy nausea and vomiting

OBJECTIVE

There is a knowledge gap regarding the effects of ginger essence on postoperative nausea and vomiting. This study aimed to evaluate the effect of ginger essence on post-nephrectomy nausea and vomiting.

DESIGN

A randomized controlled trial was conducted.

SETTING

This study was conducted from third April to first October 2014 in Labbafinejad hospital, Tehran, Iran. Totally, 120 nephrectomy patients were randomly allocated to either the treatment or the control groups. After nephrectomy, we applied two drops of ginger essence to a 2 × 2-inch gauze that was attached to the patients' collars in the treatment group to allow patients to inhale the evaporated essence along with the air room and then repeated every 30 min for two hours. The control group was similarly treated with normal saline. Nausea was assessed using a visual analogue scale every 30 min for two hours and at the sixth hour after surgery. The paired- and independent-samples t and repeated measures analysis of variance tests were used for data analysis.

RESULTS

The means nausea intensity were in the treatment and the control groups were 7.09 ± 1.59 and 7.40 ± 1.71 at thirty minutes after surgery (P value > 0.05). However, the mean nausea intensity in the treatment group at the four subsequent times were significantly lower than the control group (P value < 0.001). The numbers of vomiting episodes at two and six hours after the surgery were 0.88 ± 0.78 and 2.58 ± 1.35, in the treatment group and 4.80 ± 1.87 and 2.58 ± 1.35 in the control group. The differences between the two groups regarding the numbers of vomiting episodes were statistically significant (P value < 0.001).

CONCLUSION

Inhaling ginger essence has positive effect on postoperative nausea and vomiting. Using ginger essence for managing postoperative nausea and vomiting is recommended.

Alternative Methods to Treat Nausea and Vomiting from Cancer Chemotherapy

Chemotherapy Induced Nausea and Vomiting (CINV) is among the most intensive side effects and critical concerns for patients with cancer. Most of these patients experience nausea and vomiting after chemotherapy. Sometimes, this is so annoying that it may prevent them from continuing the therapy. With the recent advances, a variety of therapeutic methods are innovated and applied to control CINV. Among them, the main methods include medicinal therapy, relaxation, and herbal therapy. Yet, using dexamethasone together with massage therapy and ginger is identified as the most effective method.

The effectiveness of acupressure for the control and management of chemotherapy-related acute and delayed nausea: a randomized controlled trial

CONTEXT

Both positive and negative results have been reported in the literature from the use of acupressure at the P6 point, providing evidence of highly suggestive but not conclusive results.

OBJECTIVES

To clarify whether acupressure is effective in the management of chemotherapy-related nausea and vomiting.

METHODS

A randomized, three-group, sham-controlled trial was designed. Patients with cancer receiving chemotherapy were randomized to receive standardized antiemetics and acupressure wristbands, sham acupressure wristbands, or antiemetics alone. Primary outcome assessment (nausea) was carried out daily for seven days per chemotherapy cycle over four cycles. Secondary outcomes included vomiting, psychological distress, and quality of life.

RESULTS

Five hundred patients were randomized. Primary outcome analysis (nausea in Cycle 1) revealed no statistically significant differences between the three groups, although nausea levels in the proportion of patients using wristbands (both real and sham) were somewhat lower than those in the proportion of patients using antiemetics-only group. Adjusting for gender, age, and emetic risk of chemotherapy, the odds ratio of lower nausea experience was 1.18 and 1.42 for the acupressure and sham acupressure groups, respectively. A gender interaction effect was evident (P = 0.002). No significant differences were detected in relation to vomiting, anxiety, and quality-of-life measures.

CONCLUSION

No clear recommendations can be made about the use of acupressure wristbands in the management of chemotherapy-related nausea and vomiting as results did not reach statistical significance. However, the study provided evidence of encouraging signals in relation to improved nausea experience and warrants further consideration in both practice and further clinical trials.

TRIAL REGISTRATION

This trial is registered with the ISRCT register, number ISRCTN87604299.

Evaluation of Oral Ginger Efficacy against Postoperative Nausea and Vomiting: A Randomized, Double - Blinded Clinical Trial

BACKGROUND

Postoperative nausea and vomiting is one of the most common side effects associated with surgical procedures.

OBJECTIVES

The aim of this study was to determine the effect of ginger on intensity of nausea and vomiting after surgical procedures.

PATIENTS AND METHODS

This study was a randomized, double blinded, clinical trial. 160 eligible patients were randomly assigned into experimental or placebo groups. The experimental group received 4 capsules containing 250 mg ginger and placebo group received 4 placebo capsules 1 hour before surgery. The severity of nausea and vomiting was measured at 2, 4, 6 hours post operation using visual analogue scale and a structured questionnaire. The data were analyzed by independent t - test, Mann-Whitney U test, chi -square and GEE using SPSS 16 and STATA version 11.

RESULTS

Mean nausea score at 2 hours post operation was significantly lower in the experimental group (P= 0.04). Mean nausea score at 4 and 6 hours post operation was lower in the experimental group; however, there was no significant difference between the groups at any time post operation. The frequencies of nausea in the experimental group at 2 and 6 hours post operation were lower than that in the placebo group, however, at 2 hours post operation, it was borderline significant (P = 0.05) There was no significant differences between two group in the intensity of vomiting at any time.

CONCLUSIONS

Use of ginger was effective at decreasing postoperative nausea. Ginger could be used as a safe antiemetic drug at post operation.

Serial overshadowing of taste aversion learning by stimuli preceding the target taste

Three experiments tested whether events taking place before a rat has access to a target taste, sucrose, can proactively interfere with the acquisition of a sucrose aversion when sucrose is followed by a lithium chloride injection. Using a serial overshadowing procedure with various delays before lithium injection, proactive interference by a taste (Experiments 1 and 3) and by a novel context (Experiment 2) was found following two conditioning sessions, but not after a single conditioning session. Conversely, overshadowing by a taste given after the target was detectable after a single conditioning trial (Experiment 3) and, thus, indicated that retroactive interference involves a process different from that producing proactive interference. A simulation confirmed that the results are consistent with a modified Rescorla and Wagner (1972) interpretation of Revusky's (1971) concurrent interference theory of delay learning.

Mapping attitudes and awareness with regard to national guidelines: an e-mail survey among decision makers

INTRODUCTION

The adoption of evidence-based guidelines within the mental health field has been slow. Changing inadequate practice is therefore a formidable challenge for mental health-care managers.

AIM

To explore decision-makers' attitudes and awareness regarding the national guidelines for psychosocial interventions targeting people with schizophrenia.

METHOD

A questionnaire distributed by e-mail to 592 Swedish decision-makers was analysed using descriptive and comparative techniques.

RESULTS

Significantly more of the top-level mental health-care managers than politicians stated that they knew about the national guidelines (i.e. their release and content) and they considered the guidelines to be a good source of support for planning and allocating resources.

CONCLUSION

If those responsible for allocating resources (i.e. politicians) are unaware of the dissemination of national guidelines or their content, and they do not perceive the national guidelines to be a good source of support for planning and allocating resources, this is likely to have a negative influence on the remit of nurse managers as well as nursing practice.

IMPLICATIONS FOR NURSING MANAGEMENT

Top-level mental health-care managers have a vital role to play in the implementation of national guidelines. However, our findings indicate that implementing national guidelines in practice could be virtually impossible without strategic government support.

Effect of herbal therapy to intensity chemotherapy-induced nausea and vomiting in cancer patients

Background:

Chemotherapy-induced nausea and vomiting are the most important complications for cancer patients as its prevalence has been reported to be about 54-96 percent. ginger has been used for medicinal purposes including nausea and vomiting in traditional Persian, Chinese and Indian pharmacopoeia.

Objectives:

The objective of this study was to evaluate the efficacy of complimentary ginger among cancer patients experiencing nausea and vomiting.

Material and Methods:

A randomized cross-over clinical trial was carried out on patients under chemotherapy treatment for at least 2 episodes of chemotherapy and at least 2 episodes of previous experience of nausea and vomiting. Subjects of this study received 2 different complementary regimes with 250mg ginger capsule in regime A and placebo capsule in regime B. subjects of the study were crossed over to receive the other regime during the two cycles of chemotherapy.

Results:

Findings of the study indicated that subjects receiving ginger showed significant reduction in frequency and intensity of nausea and vomiting compared to placebo receiving subjects.

Conclusions:

According to finding of this study, in accordance to most of other researches, ginger is an effective agent to reduce chemotherapy-induced nausea and vomiting. However, there are some researches supporting ginger as a moderate antiemetic agent among cancerous patients under chemotherapy.

Effects of music therapy and guided visual imagery on chemotherapy-induced anxiety and nausea-vomiting

AIMS AND OBJECTIVES

To reveal the effects of music therapy and visual imagery on chemotherapy-induced anxiety and nausea-vomiting.

BACKGROUND

Behavioural techniques such as music therapy and visual imagery are becoming increasingly important in dealing with chemotherapy-induced anxiety, nausea and vomiting.

DESIGN

The study is an experimental and cross-sectional one and performed on a single sample group with the pre-post-test design consisting of 40 individuals. The individuals in the sample group comprised both the control and the case group of the study.

METHODS

To obtain the study data, the following forms were used: the Personal Information Form, Spielberger State-Trait Anxiety Inventory, The Visual Analogue Scale and Individual Evaluation Form for Nausea and Vomiting adapted from The Morrow Assessment of Nausea and Vomiting.

RESULTS

In the study, the participants' state and trait anxiety levels decreased significantly (p < 0·05). Music therapy and visual imagery reduced the severity and duration of chemotherapy-induced nausea and vomiting significantly (p < 0·05). In our research, 40% of the patients did not have anticipatory nausea and 55% of the patients did not have anticipatory vomiting during the third chemotherapy cycle during which music therapy and guided visual imagery were implemented.

CONCLUSIONS

It was determined that complementary approaches comprising music therapy and visual imagery had positive effects on chemotherapy-induced anxiety, nausea and vomiting, which are suffered too often and affect the patients' whole lives adversely.

RELEVANCE TO CLINICAL PRACTICE

This study is worthy of interest as it has revealed that music therapy and visual imagery which have been proven to be effective in many health problems in different areas are also important, and practical complementary approaches that are effective in getting chemotherapy-induced anxiety, nausea and vomiting under control.

An exploratory study to clarify the cluster of symptoms predictive of chemotherapy-related nausea using random forest modeling

CONTEXT

Chemotherapy-related nausea is experienced by most cancer patients receiving chemotherapy. Although vomiting is managed well with current antiemetics, nausea is difficult to manage and little is understood about its development.

OBJECTIVES

The aim was to determine whether nausea exists as part of a symptom cluster and evaluate the symptom cluster's impact on patients' quality of life, psychological distress, and nutritional status.

METHODS

A prospective observational design over two cycles of chemotherapy was used. Patients completed the Memorial Symptom Assessment Scale, Hospital Anxiety and Depression Scale, Functional Assessment of Cancer Therapy-General, and Patient-Generated Subjective Global Assessment before chemotherapy and at the end of the first and second cycles of treatment. Random forest modeling, a state-of-the-art prediction method, was used to analyze the data.

RESULTS

One hundred four patients participated in the study. Nausea was found to be a dynamic experience, changing over time. "Core" symptoms, predictive of the presence of nausea, were identified and included appetite loss, feeling bloated, vomiting, taste changes, and lack of energy. Although nausea alone did have an impact on patient outcomes, the impact was significantly higher in relation to physical and functional quality of life and nutritional status in those patients who had more than two symptoms from the nausea cluster.

CONCLUSION

This exploratory study, using an innovative analytical approach, has shown that nausea is a complex symptom affected by the presence and/or severity of other concurrent symptoms (the symptom cluster). The findings have implications for the measurement of nausea and also to target people for interventions to manage nausea and its cluster of symptoms.

Prevention of delayed nausea: a University of Rochester Cancer Center Community Clinical Oncology Program study of patients receiving chemotherapy

PURPOSE

We conducted a double-blind randomized clinical trial of the following four regimens for controlling delayed nausea (DN): group 1: palonosetron + dexamethasone on day 1 with prochlorperazine on days 2 and 3; group 2: granisetron + dexamethasone on day 1 with prochlorperazine on days 2 and 3; group 3: aprepitant + palonosetron + dexamethasone on day 1 with aprepitant + dexamethasone on days 2 and 3; and group 4: palonosetron + dexamethasone on day 1 with prochlorperazine + dexamethasone on days 2 and 3.

PATIENTS AND METHODS

Chemotherapy-naive patients received doxorubicin, epirubicin, cisplatin, carboplatin, or oxaliplatin. The primary end point was average nausea assessed four times daily on days 2 and 3. Primary analyses were whether nausea control would be improved by using palonosetron versus granisetron on day 1 (group 1 v group 2); by adding dexamethasone on days 2 and 3 (group 1 v group 4); and by using aprepitant versus prochlorperazine (group 3 v group 4). Statistical significance was set at P = .017.

RESULTS

Two hundred thirty-four, 234, 241, and 235 evaluable patients were accrued to groups 1, 2, 3, and 4, respectively. Adjusted mean differences for the three planned analyses were as follows: palonosetron versus granisetron: -0.01 (95% CI, -0.23 to 0.20; P = .72); adding dexamethasone on days 2 and 3: 0.20 (95% CI, -0.02 to 0.41; P = .01); and using aprepitant versus prochlorperazine: -0.03 (95% CI, -0.24 to 0.19; P = .56).

CONCLUSION

The addition of dexamethasone on days 2 and 3 reduced DN. Palonosetron and granisetron have similar effects on DN. The beneficial effect of adding aprepitant for control of DN was the same as adding prochlorperazine.

The impact of chemotherapy-related nausea on patients' nutritional status, psychological distress and quality of life

PURPOSE

Nausea is a troublesome and distressing symptom for patients receiving chemotherapy. While vomiting is well controlled with current antiemetics, nausea is a more difficult symptom to manage. The aim of this study was to assess the impact of nausea on nutritional status, quality of life and psychological distress.

METHODS

This was a prospective observational study over two cycles of chemotherapy. Patients completed the Multinational Association of Supportive Care in Cancer Antiemesis Tool, a measure of nutritional status (Patient-Generated Subjective Global Assessment), the Functional Assessment of Cancer Therapy-General (FACT-G) quality of life scale and the Hospital Anxiety and Depression Scale at the end of each chemotherapy cycle (around day 10 post-chemotherapy).

RESULTS

The sample consisted of 104 patients, primarily female, receiving anthracycline-based chemotherapy. While vomiting was minimal (5.2-14.6 % of the patients), high levels of nausea were observed (55.2-72.9 %), and severe nausea (>6 on a 0-10 scale) was reported by 20.5-29.2 % of the participants. Severe nausea had a borderline significant impact in relation to physical functioning (p = 0.025) and a significant impact on nutritional status (severe acute nausea, p = 0.003; severe delayed nausea, p = 0.017). Clinically meaningful changes were observed in relation to the FACT-G total score.

CONCLUSION

Chemotherapy-induced nausea does have an impact on nutritional status and physical functioning and can impair anxiety and quality of life. As a key symptom associated with other symptoms, it is imperative that greater attention is given to managing treatment-related nausea through innovative non-pharmacological and nutritional interventions.

Tools for assessing nausea, vomiting, and retching

BACKGROUND

Chemotherapy-induced nausea, vomiting, and retching are recognized as having an impact on patients' overall physical well-being, quality of life, and treatment decisions. Although there are many tools available to measure aspects of these symptoms, few offer a complete and concise clinical assessment.

OBJECTIVE

The purpose of this article was to provide a comprehensive overview of the various instruments available for the assessment of cancer-related nausea, vomiting, and retching. Analysis included symptoms measured, period evaluated, type of questions posed, and aspects of each symptom measured.

METHODS

Searches were conducted to find relevant articles using nationally recognized oncology Web sites and 4 electronic databases including PubMed, MEDLINE/CINAHL and CINAHL/EBSCO, and Cochrane.

RESULTS

This review includes a total of 25 instruments that were identified as meeting the inclusion criteria of having been developed, or adapted, for the adult population, with an oncology focus.

CONCLUSION

The ideal instrument would include measurement of all 3 symptoms while remaining clear, concise, and clinically relevant.

IMPLICATIONS FOR PRACTICE

Although only 1 instrument came close to meeting these criteria, this review provides nurses with specific information on a variety of instruments to assist providers in selecting the most appropriate instrument for their specific clinical setting. This comprehensive critique of instruments is important for nurses attempting to select a tool to guide optimum care for patients in the clinical setting.

Effect of acupressure on chemotherapy-induced nausea and vomiting in gynecologic cancer patients in Turkey

PURPOSE

The aim of the current study was to assess the effect of acupressure applied to the pericardium 6 (P6 or Neiguan) acupuncture point with a wristband (Sea-Band) on nausea-vomiting in addition to the standard antiemetic medications used to prevent nausea-vomiting due to chemotherapy in gynecologic cancer patients.

METHOD

In this prospective research we used pre- and posttests. The study consisted of 34 patients with gynecologic cancer.

RESULTS

We found a significant decrease in the patients' mean scores of nausea and the use of antiemetic medications following acupressure applied to the patients with a wristband, when compared with their mean scores of nausea and the use of antiemetic medications prior to the application (p<0.05), and we also observed a decline in their mean scores of vomiting and retching episodes; however, this decline was not found to be statistically significant (p>0.05).

CONCLUSIONS

The findings from this study suggest that the acupressure applied to P6 acupuncture point with wristbands may be effective in reducing chemotherapy-related nausea and may decrease the antiemetic use after chemotherapy. Further research with more subjects is needed.

Acupressure bands are effective in reducing radiation therapy-related nausea

Previous studies have shown that acupressure bands can reduce chemotherapy-related nausea. Patients' expectations of efficacy account for part of this outcome. We conducted a three-arm randomized clinical trial to investigate the effectiveness of acupressure bands in controlling radiation therapy-induced nausea and to test whether an informational manipulation designed to increase expectation of efficacy would enhance the effectiveness of the acupressure bands. Patients who experienced nausea at prior treatments were randomized to either standard care (Arm 1, n=29) or standard care plus acupressure bands with either neutral (Arm 2, n=30) or positive (Arm 3, n=29) information regarding the efficacy of the bands. Patients reported nausea for two days prior to randomization (baseline) and for five days following using a seven-point semantic rating scale (1=not nauseated to 7=extremely nauseated). Patients in Arms 2 and 3 combined reported greater reduction in average nausea than patients in Arm 1 (P=0.01; mean(bands)=0.70, mean(no bands)=0.10). This equates to a 23.8% decrease in nausea in the band groups compared to a 4.8% decrease in the control group, a 19% difference. The informational manipulation failed to alter efficacy expectations and there was no statistically significant difference in nausea between patients in Arms 2 and 3. Acupressure bands are an effective, low-cost, nonintrusive, well-accepted, and safe adjunct to standard antiemetic medication. An attempt to boost the efficacy of the acupressure bands by providing positive information was not successful.

[Descriptive study of nursing-sensitive outcomes in oncohematological patients and nursing interventions]

OBJECTIVE

To assess the main nursing-sensitive outcomes in oncohematological patients admitted to hospital and to evaluate nursing interventions.

MATERIAL AND METHODS

We performed a prospective, observational study in the oncohematological units of the Morales Meseguer Hospital. The sample included patients admitted from March 2006 to June 2007.

RESULTS

A total of 56 patients were studied. Of these, 39 patients (69.6%) had some degree of mucositis but only six patients (10.7%) were assessed objectively by nurses. Fifty-two patients (92.9%) received anti-emetic treatment, but there were no reports of nausea or vomiting in 27 (48.2%). Ten patients (17.9%) were referred to the nutritional unit. Anxiety levels and psychosocial impact decreased during hospital admission and patient satisfaction increased but family members experienced greater stress. Pressure ulcer developed in only one patient. Four catheters (8.2%) became infected and there were five cases of catheter-related bacteremia. There were 22 cases of catheter obstruction (39.9%).

CONCLUSIONS

The incidence of mucositis, pressure ulcer and catheter-related bacteremia was lower than in other studies. There was no standard assessment of pain, nausea or vomiting. Anxiety levels were lower than in other studies. Improvement and psychosocial adjustment suggested a process of adaptation to the disease. The increase in caregiver burden was related to the disease in the long term. Satisfaction with nursing care was 55 points on a 70-point scale.

Patients' Perceptions of Physician-Patient Discussions and Adverse Events with Cancer Therapy

Objectives

Patients with cancer who are treated with chemotherapy report adverse events during their treatment, which can affect their quality of life and increase the likelihood that their treatment will not be completed. In this study, patients' perceptions of the physician-patient relationship and communication about cancer-related issues, particularly adverse events were examined.

Methods

We surveyed 508 patients with cancer concerning the occurrence of adverse events and their relationship and communication with their physicians regarding cancer, treatment, and adverse events.

Results

Most individuals surveyed (>90%) discussed diagnosis, treatment plan, goals, and schedule, and potential adverse events with their physicians before initiating chemotherapy; approximately 75% of these individuals understood these topics completely or very well. Physician-patient discussions of adverse events were common, with tiredness, nausea and vomiting, and loss of appetite discussed prior to chemotherapy in over 80% of communications. These events were also the most often experienced (ranging in 95% to 64% of the respondents) along with low white blood cell counts (WBCs), which were experienced in 67% of respondents. Approximately 75% of the individuals reported that their overall quality of life was affected by adverse events.

Conclusions

These findings suggest that discussions alone do not provide patients with sufficient understanding of the events, nor do they appear to adequately equip patients to cope with them. Therefore, efforts to improve cancer care should focus on developing tools to improve patients' understanding of the toxicities of chemotherapy, as well as providing resources to reduce the effects of adverse events.

Understanding the concept of chemotherapy-related nausea: the patient experience

The aim of this study was to explore the experience of chemotherapy-related nausea in patients with cancer. A qualitative study was carried out with 17 patients who had experienced nausea during their chemotherapy in the UK and USA. Nausea was described as distressing and complex symptom. Patients attempted to construct an understanding of nausea using cognitive processes such as analysing their experience of nausea and related symptoms, attributing causation to nausea and comparing their experiences not only to their own expectations, but also to others' symptom experiences. A number of concurrent and associated symptoms linked with nausea were identified. Preliminary evidence emerged for nausea as part of a cluster of symptoms. Anti-emetic medication, provider-directed management strategies and self-management strategies were used by patients to minimize the effects of nausea. Self-management techniques, such as dietary strategies, were rooted in participants' understanding of nausea and their beliefs about what caused nausea, and there was little evidence of guidance from professionals beyond advice about medication management. This study reveals some of the complexities behind chemotherapy-induced nausea, including a potential symptom cluster, and contributes towards a clearer understanding of this symptom and its effects on patients' lives.

A review of patient self-report tools for chemotherapy-induced nausea and vomiting

GOALS OF WORK

The assessment of chemotherapy-induced nausea, vomiting and retching (CINVR) is important and to date no review has comprehensively assessed available patient self-report tools. The aim was to undertake a review of their utility, content and psychometric properties.

MATERIALS AND METHODS

One thousand three hundred and forty-seven citations were identified by electronic and hand searches resulting in 24 non-duplicate abstracts, 15 articles for analysis, and six articles, which fitted the inclusion criteria. E-mail investigations discovered a further scale, resulting in seven measures.

RESULTS

The review highlighted the strengths and weaknesses of current tools. The multiple domains, phases and aspects of CINVR signify that the assessment tools varied markedly. The diverse requirements of research and clinicians also contribute to the variation. There was a notable disparity in the quality of scales and paucity in terms of their development and psychometric evaluation. We found that several self-assessment scales currently perceived as well-validated tools have problems in terms of their validity, reliability and appropriateness.

CONCLUSIONS

The constituents of a scale relevant for both clinical and research use were assessed and it was recommended that a modular tool focusing on two domains (nausea and vomiting); two phases (acute and delayed); measuring the aspects of occurrence, frequency, intensity alongside duration and functional interference; and antiemetic use and adverse events should be developed. Based on these recommendations, further research into an appropriate scale would minimise conceptual confusion, increase clinicians' understanding and control of CINVR, decrease patient distress and could have equal utility in both a clinical and a research setting.

The Pathways Study: a prospective study of breast cancer survivorship within Kaiser Permanente Northern California

OBJECTIVE

With 2.3 million breast cancer survivors in the US today, identification of modifiable factors associated with breast cancer recurrence and survival is increasingly important. Only recently new studies have been designed to examine the impact of lifestyle factors on prognosis, including Pathways, a prospective study of women with breast cancer in Kaiser Permanente Northern California (KPNC).

METHODS

Pathways aims to examine the effect on recurrence and survival of (1) lifestyle factors such as diet, physical activity, quality of life, and use of alternative therapies and (2) molecular factors such as genetic polymorphisms involved in metabolism of chemotherapeutic agents. Eligibility includes any woman diagnosed with invasive breast cancer within KPNC, no previous diagnosis of other invasive cancer, age 21 years or older, and ability to speak English, Spanish, Cantonese, or Mandarin. Newly diagnosed patients are identified daily from electronic pathology records and are enrolled within two months of diagnosis. An extensive baseline interview is conducted, blood and saliva samples are collected, and body measurements are taken. Women are followed for lifestyle updates, treatment, and outcomes by self-report and query of KPNC databases.

RESULTS

Recruitment began in 9 January, 2006, and as of 16 January, 2008, 1,539 women have been enrolled along with collection of 1,323 blood samples (86%) and 1,398 saliva samples (91%).

CONCLUSIONS

The Pathways Study will become a rich resource to examine behavioral and molecular factors and breast cancer prognosis.

Effect of a nausea expectancy manipulation on chemotherapy-induced nausea: a university of Rochester cancer center community clinical oncology program study

Several studies have shown that patients' expectancies for the development of nausea following chemotherapy are robust predictors of that treatment-related side effect, and some studies have shown that interventions designed to influence expectancies can affect patients' reports of symptoms. In this randomized, multicenter, Community Clinical Oncology Program trial, we investigated the effect of an expectancy manipulation designed to reduce nausea expectancy on chemotherapy-induced nausea in 358 patients scheduled to receive chemotherapy treatment. Patients in the intervention arm received general cancer-related educational material plus specific information about the efficacy of ondansetron, specifically designed to diminish nausea expectancy. Patients in the control arm received only the general cancer-related educational material. Nausea expectancy was assessed both prior to and following the educational intervention. We observed a significant reduction in nausea expectancy in the intervention group (P=0.024) as compared to the control group (P=0.34). In the intervention group, patients' expectations of nausea assessed prior to the intervention correlated significantly with average nausea (r=0.27, P=0.001), whereas nausea expectancy assessed following the intervention did not (r=0.1, P=0.22). Although the expectancy manipulation reduced patients' reported expectations for the development of nausea, the occurrence of nausea was not reduced. Furthermore, post-intervention nausea expectancy compared to pre-intervention expectancy was less predictive of subsequent nausea. Explanations for these findings include the possibility that the expectancy manipulation was not strong enough, and the possibility that changing nausea expectancies does not change occurrence of nausea.

Hypnosis for nausea and vomiting in cancer chemotherapy: a systematic review of the research evidence

To systematically review the research evidence on the effectiveness of hypnosis for cancer chemotherapy-induced nausea and vomiting (CINV). A comprehensive search of major biomedical databases including MEDLINE, EMBASE, ClNAHL, PsycINFO and the Cochrane Library was conducted. Specialist complementary and alternative medicine databases were searched and efforts were made to identify unpublished and ongoing research. Citations were included from the databases' inception to March 2005. Randomized controlled trials (RCTs) were appraised and meta-analysis undertaken. Clinical commentaries were obtained. Six RCTs evaluating the effectiveness of hypnosis in CINV were found. In five of these studies the participants were children. Studies report positive results including statistically significant reductions in anticipatory and CINV. Meta-analysis revealed a large effect size of hypnotic treatment when compared with treatment as usual, and the effect was at least as large as that of cognitive-behavioural therapy. Meta-analysis has demonstrated that hypnosis could be a clinically valuable intervention for anticipatory and CINV in children with cancer. Further research into the effectiveness, acceptance and feasibility of hypnosis in CINV, particularly in adults, is suggested. Future studies should assess suggestibility and provide full details of the hypnotic intervention.

A coping and communication support intervention tailored to older patients diagnosed with late-stage cancer

As our society ages, increasing numbers of older Americans will be diagnosed and eventually will die of cancer. To date, psycho-oncology interventions for advanced cancer patients have been more successful in reaching younger adult age groups and generally have not been designed to respond to the unique needs and preferences of older patients. Theories and research on successful aging (Baltes and Baltes 1990; Baltes 1997), health information processing style (Miller 1995; Miller et al 2001) and non-directive client-centered therapy (Rogers 1951, 1967), have guided the development of a coping and communication support (CCS) intervention. Key components of this age-sensitive and tailored intervention are described, including problem domains addressed, intervention strategies used and the role of the CCS practitioner. Age group comparisons in frequency of contact, problems raised and intervention strategies used during the first six weeks of follow up indicate that older patients were similar to middle-aged patients in their level of engagement, problems faced and intervention strategies used. Middle-aged patients were more likely to have problems communicating with family members at intervention start up and practical problems as well in follow up contacts. This is the first intervention study specifically designed to be age sensitive and to examine age differences in engagement from the early treatment phase for late-stage cancer through end of life. This tailored intervention is expected to positively affect patients' quality of care and quality of life over time.

Self-reported taste and smell changes during cancer chemotherapy

PURPOSE

This study explores the prevalence of self-reported taste and smell changes (TSCs) during chemotherapy and relationships between TSCs and demographic and clinical factors.

MATERIALS AND METHODS

Consecutive patients who had received chemotherapy for > or =6 weeks at 11 outpatient chemotherapy units completed a questionnaire developed for this survey.

RESULTS

Seventy-five percent of the 518 participants reported TSCs, with TSCs more prevalent among women and younger patients. After adjustment for age and sex, we found that patients reporting TSCs more often reported: previous smell changes, less responsibility for cooking, concurrent medication, higher educational levels, and being on sick leave. Participants reporting oral problems, nausea, appetite loss, and depressed mood more frequently reported TSCs. Diagnosis and type of chemotherapy regimen did not predict TSCs.

CONCLUSION

TSCs were found to be common during cancer chemotherapy and were related to sociodemographic rather than clinical factors. TSCs were also found to be closely related to many other side effects of chemotherapy.

Role of classical conditioning in learning gastrointestinal symptoms

Nausea and/or vomiting are aversive gastrointestinal (GI) symptoms. Nausea and vomiting manifest unconditionally after a nauseogenic experience. However, there is correlative, quasiexperimental and experimental evidence that nausea and vomiting can also be learned via classical (Pavlovian) conditioning and might occur in anticipation of the nauseogenic event. Classical conditioning of nausea can develop with chemotherapy in cancer patients. Initially, nausea and vomiting occur during and after the administration of cytotoxic drugs (post-treatment nausea and vomiting) as unconditioned responses (UR). In addition, 20%-30% of cancer patients receiving chemotherapy report these side effects, despite antiemetic medication, when being re-exposed to the stimuli that usually signal the chemotherapy session and its drug infusion. These symptoms are called anticipatory nausea (AN) and/or anticipatory vomiting (ANV) and are explained by classical conditioning. Moreover, there is recent evidence for the assumption that post-chemotherapy nausea is at least partly influenced by learning. After summarizing the relevant assumptions of the conditioning model, revealing that a context can become a conditioned stimulus (CS), the present paper summarizes data that nausea and/or vomiting is acquired by classical conditioning and, consequently, may be alleviated by conditioning techniques. Our own research has focussed on two aspects and is emphasized here. First, a conditioned nausea model was established in healthy humans using body rotation as the nausea-inducing treatment. The validity of this motion-sickness model to examine conditioning mechanisms in the acquisition and alleviation of conditioned nausea and associated endocrine and immunological responses is summarized. Results from the rotation-induced motion sickness model showed that gender is an important moderator variable to be considered in further studies. This paper concludes with a review of the application of the demonstrated conditioning principles as interventions to ameliorate distressing AN/ANV in cancer patients undergoing chemotherapy, which is the second focus of our work.

Putting evidence into practice: evidence-based interventions to prevent, manage, and treat chemotherapy-induced nausea and vomiting

Chemotherapy-induced nausea and vomiting (CINV) continues to have a considerable effect on the physical and psychological well-being of patients with cancer, despite significant advances in antiemetic drugs since the 1990s. This article reviews and summarizes past and current empirical evidence related to interventions for CINV. A resource that summarizes evidence-based interventions for CINV is critical for effective management of this distressing symptom. Pharmacologic and nonpharmacologic interventions are appraised. Finally, gaps in the literature and opportunities for research, education, and practice changes are discussed.

The continuing problem of post chemotherapy nausea and vomiting: contributions of classical conditioning

Despite continuing improvements in antiemetic therapies, nausea and vomiting following chemotherapy treatments for cancer remain significant clinical problems for many patients. The role of classical conditioning in patients' anticipatory nausea is well known, but little attention has been paid to possible conditioning effects on post treatment nausea. The present study statistically examined the contribution of anticipatory (conditioned) nausea to patients' subsequent post treatment nausea. Forty early stage breast cancer patients who developed anticipatory nausea were analyzed. Results revealed a significant correlation between the intensity of anticipatory nausea in the clinic prior to their treatment infusion and subsequent post treatment nausea during the 24 h after the infusion. These results provide support for the hypothesis that, once established, conditioned nausea may contribute to the severity of subsequent post treatment nausea in patients receiving repeated cycles of chemotherapy for cancer. The results suggest the importance of considering the contribution of conditioning process to nausea and other post treatment side effects.