The nature of nausea: prevalence, etiology, and treatment in patients with advanced cancer not receiving antineoplastic treatment

Use of chronic medications and risk of death due to COVID-19 in hospitalised patients

OBJECTIVES

To evaluate the potential association between chronic exposure to medication and death related to COVID-19.

METHODS

This is a retrospective cross-sectional study that included all patients hospitalised due to COVID-19 from 11 March to 4 June 2020 in our centre. Chronic patient medication was classified by the Anatomical Therapeutic Chemical (ATC) classification; demographic and clinical data were analysed. Multivariate logistic regression models were used to estimate the adjusted odds ratios (aOR) of death for each drug exposure; each aOR represents an independent model adjusted by clinical factors related to COVID-19 mortality.

RESULTS

The study included 978 patients with a mean (SD) age of 64.5 (17.7) years who were predominantly male (531, 54.3%). Of all 978 patients, 182 (18.61%) died during the follow-up of the study. The most common Charlson Comorbidity Index (CCI) was 0, 4.2% were smokers, 16.7% were obese, 47.4% had hypertension, and 19.4% were diabetic. Most patients (70.8%) were prescribed at least one treatment, 32.5% used >5 treatments, and 8.6% >10. Our data suggest that COVID-19 hospitalised patients taking trimethoprim and analogues, leukotriene receptor antagonists, calcineurin inhibitors, aldosterone antagonists, selective immunosuppressants, propulsives, insulins and analogues, and benzodiazepine derivatives have a higher risk of death.

CONCLUSIONS

This study investigated the association between chronic exposure to drugs and the risk of death in COVID-19 patients. Our results have shed some light on the impact of chronic drug exposure on the risk of severe COVID-19; however, further research is needed to increase the understanding about its relevance.

Assessment and management of nausea and vomiting in cancer survivors

ABSTRACT

Nausea and vomiting may occur in cancer survivors during or independent of treatment. A complete assessment is necessary to determine the etiology and to plan specific and successful interventions. NPs have a key role in managing cancer survivors' symptoms and determining the best supportive care.

Pediatric Nurses' Person-Centered Approach to Nausea Management in Children With Cancer

Background: Nausea is a problematic side effect of childhood cancer treatment. However, it is not clear what interventions and assessments pediatric oncology nurses make when caring for a child with nausea. A person-centered approach can illuminate nausea management in pediatric care. The aim was to investigate how pediatric nurses retrieve the patient's narrative, establish partnership, and document nausea in hospitalized children with cancer. Methods: Individual interviews with nurses were conducted and analyzed using deductive content analysis with the framework of person-centered care. Results: The pediatric nurses described retrieving the patient's narrative regarding their nausea by listening to and observing the child. The pediatric nurses tried to establish a partnership with the child by allowing previous knowledge and the child's own preferences guide the interventions that focus on decreasing the child's nausea. The pediatric nurses also documented the effect of the given interventions and described the child's nausea using subjective words. When planning for the child's care it was rare for the nurses to have a documented care plan, but they did review documentation of previously administered interventions to plan for future care. Discussion: The results highlight the pediatric nurses' willingness to listen to the child, but also emphasize the need to further include the child and the parents in the partnership and documentation of nausea management. Collaboration with the child and the parents contributes to higher quality care and a partnership with trust.

Nausea at the start of specialized palliative care and change in nausea after the first weeks of palliative care were associated with cancer site, gender, and type of palliative care service-a nationwide study

PURPOSE

Nausea is a common and distressful symptom among patients in palliative care, but little is known about possible socio-demographic and clinical patient characteristics associated with nausea at the start of palliative care and change after initiation of palliative care. The aim of this study was to investigate whether patient characteristics were associated with nausea at the start of palliative care and with change in nausea during the first weeks of palliative care, respectively.

METHODS

Data was obtained from the nationwide Danish Palliative Care Database. The study included adult cancer patients who were admitted to palliative care and died between June 2016 and December 2020 and reported nausea level at the start of palliative care and possibly 1-4 weeks later. The associations between patient characteristics and nausea at the start of palliative care and change in nausea during palliative care, respectively, were studied using multiple regression analyses.

RESULTS

Nausea level was reported at the start of palliative care by 23,751 patients of whom 8037 also reported 1-4 weeks later. Higher nausea levels were found for women, patients with stomach or ovarian cancer, and inpatients at the start of palliative care. In multivariate analyses, cancer site was the variable most strongly associated with nausea change; the smallest nausea reductions were seen for myelomatosis and no reduction was seen for stomach cancer.

CONCLUSION

This study identified subgroups with the highest initial nausea level and those with the least nausea reduction after 1-4 weeks of palliative care. These latter findings should be considered in the initial treatment plan.

Patient-perceived symptomatic benefits of olanzapine treatment for nausea and vomiting in patients with advanced cancer who received palliative care through consultation teams: a multicenter prospective observational study

PURPOSE

To examine the safety, effectiveness, and patient-perceived benefit of treatment with olanzapine for nausea and vomiting (N/V) in patients with advanced cancer.

METHODS

We conducted a multicenter prospective observational study in a tertiary care setting (Trial registration number: UMIN000020493, date of registration: 2016/1/12). We measured the following: average nausea in the last 24 h using a Numeric Rating Scale (NRS: range 0-10) at baseline and day 2, patient-perceived treatment benefit (based on a 5-point verbal scale), and adverse events (AEs; using the Common Terminology Criteria for Adverse Events version 4).

RESULTS

The 85 participants (45% men) had a mean age of 58.7±15.8 years. Major causes of N/V were opioids (44%) and chemotherapy (34%). All patients received a daily dose of olanzapine of 5 mg or less as first-line treatment (N=35) or second- or later-line treatment (N=50). Nausea NRS decreased from 6.1±2.2 to 1.8±2.0 (differences: -4.3, 95% CI -3.7 to -4.9, p<0.001). The proportion of patients who did not experience vomiting episodes in the last 24 h increased from 40-89%. Mean decrease in nausea NRS by patient-perceived treatment benefit were as follows: -0.8 for "none" (n=4, 5%); -2.8 for "slight" (n=17, 20%); -3.3 for "moderate" (n=14, 16%); -4.7 for "lots" (n=25, 29%); and -6.1 for "complete" (n=25, 29%; p-for-trend<0.001). The most prevalent AE was somnolence (n=15, 18%).

CONCLUSION

Short-term and relatively low-dose olanzapine treatment was effective for multifactorial N/V. Confirmatory studies with longer observation periods are needed to clarify the duration of the effect and adverse events.

The Benefits of Olanzapine in Palliating Symptoms

OPINION STATEMENT

Olanzapine has become a major drug in the management of chemotherapy-induced nausea and vomiting as a prophylactic agent. In addition, a recent randomized trial has demonstrated its benefits in treating nausea and vomiting associated with advanced cancer. The added benefit to olanzapine is that it also stimulates appetite. As a result, since it treats multiple symptoms associated with advanced cancer, it is likely to become the antiemetic of choice in palliative care at least in the USA. The added benefit of treating insomnia and the avoidance of benzodiazepines should place olanzapine in at the top of the list of drugs to use for patients who do complain of insomnia. There is no good evidence that it potentiates the respiratory depression of opioids unlike benzodiazepines. The evidence is weak that olanzapine in as an adjuvant analgesic. Hopefully, future trials will explore this in greater depth. The benefits of adding olanzapine to potent opioids are that it may reduce craving, drug cues, and opioid misuse. Other symptoms like anxiety and depression may be addressed by the addition of olanzapine to standard antidepressants.

The use of olanzapine as an antiemetic in palliative medicine: a systematic review of the literature

BACKGROUND

Olanzapine is an atypical antipsychotic that has affinity for many central nervous system receptors. Its efficacy is supported by several studies in the prevention and treatment of chemotherapy-induced nausea and vomiting. No recommendations exist on the antiemetic use of olanzapine in the palliative care setting. The aim of this work is to complete the initial work of Fonte et al. published in 2015, to determine whether the literature supports the use of olanzapine as an antiemetic in palliative situations and, in practice, to propose a therapeutic schema adapted to the palliative setting.

METHODS

Systematic review of the literature according to the PRISMA criteria. We searched the PubMed, Cochrane, RefDoc, EMBase databases and the gray literature databases. The bibliographic search was conducted between November 2016 and August 2017.

RESULTS

Thirteen articles were included: 2 case studies, 3 case series, 3 retrospective studies, 2 prospective studies, 2 literature reviews. All studies concluded on the efficacy of olanzapine as an antiemetic in the palliative care setting. No serious adverse effects were reported. Based on the data from the literature review, we propose a therapeutic scheme adapted to the palliative care context.

CONCLUSION

Action of olanzapine on many receptors and its tolerance profile make it an interesting antiemetic treatment in palliative medicine. But to date, studies are scarce and have a low statistical power. Further investigation is therefore needed to determine the benefit of this treatment in palliative care patients, compared to usual treatments.

Nausea and Vomiting: a Palliative Care Imperative

PURPOSE OF REVIEW

This review was undertaken to survey recent literature for research reports and comprehensive clinical reviews addressing the pharmacologic management of nausea and vomiting (N&V) in advanced cancer. The goal was to integrate findings in a comprehensive article that incorporates palliative care concepts into antiemetic treatment.

RECENT FINDINGS

There are few published studies of N&V in advanced cancer; such research may be limited by the multicausal nature of N&V and participant burden to patients with life-limiting disease. Most articles are written by oncologists who also specialize in palliative care, and those addressing adverse effects of drugs used as antiemetics are found in other literature. Articles addressing more novel therapies, like cannabinoids and medical marijuana, are uncommon in the oncology literature. N&V in patients with progressive or advanced cancer is often multicausal. Nausea is more common and persistent, and even mild nausea is bothersome and may cause anxiety or depression. The mechanisms of nausea and vomiting overlap, but different neural pathways constitute the final pathway for each-the brainstem for vomiting and higher brain regions for nausea. Common causes of N&V in advanced cancer include constipation, opioids, and malignant bowel obstruction. About 40% have undetermined causes and may be exacerbated by impaired gastric emptying, chemical imbalances, or other factors. Several drugs that have antiemetic effects and act at different receptors are used to palliate N&V. There is a paucity of research that supports palliative antiemetic choices, and other research is needed to define potential therapeutic strategies that capitalize on differences between nausea and vomiting.