Oxygen therapy for exercise capacity in fibrotic interstitial lung disease: A systematic review and meta-analysis of randomised controlled trials

BACKGROUND

Fibrotic interstitial lung disease (fILD) is characterised primarily by impaired lung function and quality of life. The present study investigated whether oxygen therapy could improve exercise capacity among patients with fILD.

METHODS

Previously published randomised controlled trials (RCTs) were surveyed. A systematic review and meta-analysis was conducted to evaluate the effectiveness of oxygen therapy in improving the exertional capacity of patients with fILD. The primary outcome was peripheral oxygen saturation (SpO2) during exercise. The effects of oxygen therapy on fatigue, dyspnoea, heart rate, and exercise duration or distance were also analysed.

RESULTS

Fourteen RCTs involving 370 patients were included. Oxygen therapy improved SpO2 during exercise (mean difference, MD = 6.26 %), exercise duration (MD = 122.15 s), fatigue (standard mean difference, SMD = -0.30), and dyspnoea (MD = -0.75 Borg score units). High-flow oxygen systems tended to be more effective than low-flow systems in improving exercising SpO2, duration, fatigue, dyspnoea, and heart rate. High-flow nasal cannulas (HFNCs) yielded better outcomes regarding SpO2 and fatigue than did high-flow Venturi masks (MD = 1.60 % and MD = -1.19 Borg score units, respectively). No major adverse events were reported.

CONCLUSION

The evidence from RCTs supports the short-term use of oxygen supplementation to improve SpO2, exercise capacity, fatigue, and dyspnoea among patients with fILD. Further analyses demonstrates that HFNCs yield more favourable outcomes, yet not reaching statistical significance except for improving SpO2 and fatigue. However, the long-term effects of oxygen therapy on quality of life and mortality remain unclear.

Efficacy of Natural Products in Preventing Oral Mucositis Resulting from Cancer Therapies: A Network Meta-analysis of Randomized Controlled Trials

BACKGROUND

Oral mucositis significantly compromises the quality of life for patients undergoing cancer therapies. This study aimed to evaluate the effectiveness of natural products in either preventing or alleviating oral mucositis resulting from cancer treatments.

METHODS

A systematic review and network meta-analysis were conducted, sourcing data from the Cochrane Library, PubMed, Embase, Airiti Library, and Wan Fang Data Knowledge Service Platform until August 2023. The study was registered in PROSPERO (CRD42021285433). Confidence in Network Meta-Analysis (CINeMA) and R software 4.1.3 were used for analysis.

RESULTS

From 1,556 identified articles, 36 randomized controlled trials (RCTs) were analyzed, involving 2,083 patients. Honey, notably, was found to significantly reduce the overall incidence of oral mucositis compared to standard care, with a relative risk (RR) of 0.80 (95% CI: 0.67-0.96). It was particularly effective against moderate-to-severe oral mucositis (grade ≥ 2), reducing incidence with RR of 0.48 (95% CI: 0.30-0.75) versus placebo and 0.56 (95% CI: 0.34-0.93) against standard care. Other natural products, including propolis, chamomile, and P. major L., also demonstrated significant efficacy in reducing the incidence of oral mucositis. Regarding pain relief, honey, and P. major L. emerged as effective, significantly reducing pain severity with a mean difference (MD) of -2.96 (95% CI: -3.80 to -1.94) compared to placebo.

CONCUSSION

This network meta-analysis supports the use of honey, propolis, chamomile, and P. major L. as effective natural products in the prevention and treatment of oral mucositis among cancer patients. Specifically, honey is highlighted for its significant impact on reducing both the overall incidence and the severity of moderate-to-severe oral mucositis. By leveraging their anti-inflammatory and antioxidant properties, integrating these natural products into the standard care regimen could markedly improve the well-being of individuals undergoing cancer therapy.

Efficacy and Safety of Ginger on Chemotherapy-Induced Nausea and Vomiting: A Systematic Review and Meta-analysis of Randomized Controlled Trials

BACKGROUND

Chemotherapy-induced nausea and vomiting (CINV) is a prevalent and distressing side effect. Historically, ginger has been explored as a potential remedy for various ailments, including its potential efficacy against CINV.

OBJECTIVE

The aim of this study was to determine whether taking ginger supplements can relieve CINV.

METHOD

A comprehensive search was conducted across PubMed, EMBASE, Cochrane Library, and the Wanfang database. Randomized controlled trials meeting our inclusion criteria were analyzed. The primary outcomes were the incidence and severity of CINV. The protocol was registered on PROSPERO, and the number is CRD4202232104.

RESULT

Of the 35 randomized controlled trials analyzed, 22 trials employed ginger capsules as the primary intervention, whereas 13 studies evaluated the prophylactic effects of ginger-partitioned moxibustion. The outcomes indicated that combining ginger capsules with standard antiemetic agents can significantly reduce the incidence of grade 3 acute nausea (Risk Ratio [RR], 0.19; P < .001) and the incidence of high-grade overall vomiting (RR, 0.47; P = .01). Moreover, ginger-partitioned moxibustion can significantly alleviate the incidence of both mild (RR, 0.56; P = .001) and severe (RR, 0.39; P < .00001) vomiting. Only 2.8% of patients experienced dizziness after ginger-partitioned moxibustion.

CONCLUSIONS

Our findings indicate that ginger capsules, when used alongside antiemetic drugs, enhance the management of severe CINV, particularly in highly emetogenic chemotherapy regimens.

IMPLICATIONS FOR PRACTICE

Based on our findings, we recommend initiating ginger supplements before chemotherapy, in conjunction with standard antiemetics, to reduce the severity of CINV. The promising results warrant more rigorous clinical trials to firmly establish the role of ginger in CINV management.

Use of a wearable device to compare subjective and objective fatigue in lung cancer patients and cancer-free controls

PURPOSE

The study evaluates the use of heart rate variability (HRV), a measure of autonomic nervous system (ANS) modulation via wearable smart bands, to objectively assess cancer-related fatigue (CRF) levels. It aims to enhance understanding of fatigue by distinguishing between LF/HF ratios and LF/HF disorder ratios through HRV and photoplethysmography (PPG), identifying them as potential biomarkers.

METHODS

Seventy-one lung cancer patients and 75 non-cancer controls wore smart bands for one week. Fatigue was assessed using Brief Fatigue Inventory, alongside sleep quality and daily interference. HRV parameters were analyzed to compare groups.

RESULTS

Cancer patients showed higher fatigue and interference levels than controls (64.8% vs. 54.7%). Those with mild fatigue had elevated LF/HF disorder ratios during sleep (40% vs. 20%, P = 0.01), similar to those with moderate to severe fatigue (50% vs. 20%, P = 0.01), indicating more significant autonomic dysregulation. Notably, mild fatigue patients had higher mean LF/HF ratios than controls (1.9 ± 1.34 vs. 1.2 ± 0.6, P = 0.01), underscoring the potential of disorder ratios in signaling fatigue severity.

CONCLUSIONS

Utilizing wearable smart bands for HRV-based analysis is feasible for objectively assess CRF levels in cancer patients, especially during sleep. By distinguishing between LF/HF ratios and LF/HF disorder ratios, our findings suggest that wearable technology and detailed HRV analysis offer promising avenues for real-time fatigue monitoring. This approach has the potential to significantly improve cancer care by providing new methods for managing and intervening in CRF, particularly with a focus on autonomic dysregulation as a crucial factor.

Oral aspirin for preventing colorectal adenoma recurrence: A systematic review and network meta-analysis of randomized controlled trials

Colorectal adenomas have the potential of malignant transformation if left untreated. Multiple randomized controlled trials have been performed to evaluate the efficacy of aspirin in preventing colorectal adenoma recurrence in a population with a history of colorectal adenoma but not colorectal cancer, however, the relationship between aspirin dose and colorectal adenoma recurrence remains unclear. We conducted pairwise meta-analysis, meta-regression, trial sequential analysis, and network meta-analysis of all eligible studies. The ROB 2.0 tool was used to assess the risk of bias in the studies. The confidence in network meta-analysis (CINeMA) approach was used to evaluate the confidence of the network meta-analysis results. The network meta-analysis included eight RCTs (nine reports), comprising four on aspirin (low or high dose) alone and four on aspirin combined with another medication, all compared with placebo. In the network meta-analysis, low-dose aspirin (LDA <300 mg per day) was more effective than high-dose aspirin (HDA ≥300 mg per day) and placebo, with risk ratios of 0.76 (95% CI: 0.58 to 0.99) and 0.7 (95% CI: 0.54 to 0.91), respectively. LDA was the optimal treatment relative to HDA and placebo (P-score = 0.99). In the trial sequential analysis, LDA was only more effective than placebo when the number of included participants exceeded the optimal information size; this was not the case for HDA. LDA has statistically significant efficacy for colorectal adenoma prevention, but compared with HDA, its efficacy remains uncertain. Further trials are therefore required.

Effectiveness of glutamine for the treatment of radiodermatitis in cancer patients: a meta-analysis of randomized controlled trials

BACKGROUND

After receiving radiation therapy, 60%-95% of patients with cancer develop radiodermatitis, which causes pain, wound infection, and poor quality of life. Glutamine is a popular nutritional supplement for patients with cancer. Several studies examined the usefulness of glutamine for reducing radiodermatitis. However, there is still no consolidated evidence for clinical use.

METHODS

We searched PubMed, Embase, Cochrane Library, CINAHL PLUS, and the China Knowledge Resource Integrated Database for the relevant literature published up to March 2023, without language restrictions. Two reviewers screened, filtered, and appraised these articles independently, and their data were pooled using a random-effects model.

RESULTS

Five randomized controlled trials (RCTs) with 218 participants were analyzed. The incidence of radiodermatitis in the glutamine group (89/110) was significantly lower than in the placebo group (99/108; risk ratio [RR], 0.90; 95% CI, 0.81-1.00; p = 0.05; I2 = 7%). The incidence of moderate to severe radiodermatitis was significantly lower in the glutamine group than in the placebo group (RR, 0.49; 95% CI, 0.32-0.76; p = 0.001; I2 = 52%). Moreover, subgroup analysis demonstrated heterogeneity (I2 = 52%) for moderate to severe radiodermatitis, the risk of which might be significantly reduced by a glutamine dose of 20-30 g/day (RR, 0.60; 95% CI, 0.41-0.87; I2 = 0%).

CONCLUSION

The meta-analysis indicate that glutamine might lead to a lower incidence of radiodermatitis, and that a glutamine dose of 20-30 g/day might decrease the incidence of moderate to severe dermatitis. Thus, the serious impact of radiodermatitis on treatment follow-up makes the clinical use of glutamine even more important. PROSPERO number: CRD42021254394.

Trismus in head and neck cancer: translation and validation of the Chinese version of the Gothenburg Trismus Questionnaire-2 (C-GTQ-2)

OBJECTIVES

Trismus, marked by restricted mouth opening, significantly affects patients with temporomandibular disorder (TMD) and head and neck cancer (HNC). Despite its prevalence, specialized questionnaires for trismus assessment are scarce. This study aims to fill this gap by translating and validating the Gothenburg Trismus Questionnaire version 2 (GTQ-2) into Chinese (C-GTQ-2), enhancing the evaluation of trismus in HNC and TMD patients.

MATERIALS AND METHODS

The study involved 78 HNC patients, 75 TMD patients, and a control group of 150 individuals without trismus symptoms. Participants were asked to complete the C-GTQ-2 and other health-related quality of life (HRQL) instruments. A subset of 30 individuals retook the questionnaire within two weeks to assess test-retest reliability.

RESULTS

The C-GTQ-2 demonstrated remarkable reliability, with Cronbach's alpha values exceeding 0.70 in three of the four domains, indicating high internal consistency. The instrument also showcased high intra-class correlations in the test-retest, affirming its reliability. Furthermore, it exhibited strong convergent validity, aligning well with other HRQL instruments, and effectively discriminated between patients with and without trismus, establishing its discriminant validity.

CONCLUSIONS

The C-GTQ-2 emerges as a valid and reliable tool for assessing trismus in HNC and TMD patients, promising to significantly enhance both clinical and research approaches to managing trismus-related complications in the Chinese-speaking demographic.

CLINICAL RELEVANCE

C-GTQ-2 proves effective for trismus assessment in head and neck cancer and temporomandibular disorder patients, offering enhanced clinical and research utility.

Effects of an Interactive e-Book on Enhancing Nursing Students' Knowledge, Confidence, and Learning Self-efficacy of Nursing Skills: A Randomized Controlled Trial

BACKGROUND

Interactive e-books offer multimedia and interactive features that make them particularly suitable for learning nursing skills and also allow for easy content updating, ensuring that students learn the most current skills based on the latest clinical guidelines.

PURPOSE

To examine the effectiveness of an interactive e-book in increasing nursing students' knowledge, confidence, and learning self-efficacy of performing nasogastric tube feeding.

METHODS

A randomized controlled trial was conducted with 62 nursing students, with the experimental group using an interactive e-book for learning whereas the comparison group using a printed textbook.

RESULTS

The experimental group demonstrated significantly greater knowledge and confidence improvements than the comparison group, but no significant difference was found in learning self-efficacy. The experimental group was significantly more satisfied with the learning materials than the comparison group.

CONCLUSIONS

Interactive e-books are more effective in enhancing nursing students' knowledge and confidence in performing nursing skills than printed textbooks.

Effects of Music Therapy on Spiritual Well-Being among Patients with Advanced Cancer in Palliative Care: A Meta-Analysis of Randomized Controlled Trials

PURPOSE

Patients with advanced cancer in palliative care often experience physical and psychological symptoms that negatively impact their quality of life (QoL) and spiritual well-being. Music therapy can be used for symptom management in these patients. However, the effectiveness is uncertain. To determine the effectiveness of music therapy on spiritual well-being, QoL, pain, and psychological distress using randomized controlled trials (RCTs).

DATA SOURCE

A systematic search was conducted in EMBASE, PubMed, Cochrane Library, CINAHL, Web of Science, and the ClinicalTrial.gov registry up to September 2022.

CONCLUSION

The meta-analysis included seven RCTs with a total of 747 advanced cancer patients. Music therapy was found to significantly improve spiritual well-being with a mean difference of 0.43 (95% CI: 0.25 to 0.61, P < .001) in the intervention group compared to the control group. However, no significant group differences were found between the intervention and control groups for QoL (SMD: 0.53, 95% CI: -0.12 to 1.13, P = .11), pain (MD: -0.81, 95% CI: -2.06 to 0.44, P = .20), and psychological distress (SMD: -0.05, 95% CI: -0.41 to 0.32, P = .81). Music therapy can effectively improve the spiritual well-being of palliative care patients. However, its beneficial effects on QoL, pain, and psychological distress were minimal.

IMPLICATIONS FOR NURSING PRACTICE

Music therapy interventions can be introduced to help patients deal with spiritual/existential needs. Future studies should identify optimal characteristics of music therapy interventions to aid in enhancing the quality of palliative care for patients with advanced cancer.

A systematic review and meta-analysis of randomized controlled trials on the effectiveness of immersive virtual reality in cancer patients receiving chemotherapy

PURPOSE

Immersive virtual reality (IVR) shows promise in cancer care, especially for chemotherapy patients. This systematic review and meta-analysis assesses IVR's impact on adult and pediatric cancer patients undergoing chemotherapy.

METHODS

We searched PubMed, Cochrane Library, Embase, Scopus, Web of Science, and Google Scholar for relevant randomized controlled trials (RCTs). We focused on anxiety, depression, fatigue, pain, and anxiety in adults and pain and anxiety in pediatric patients.

RESULTS

Fifteen trials were included, enrolling 607 adult and 257 pediatric cancer patients. IVR significantly reduced anxiety (SMD = -1.89, 95% CI = -2.93 to -0.85), depression (SMD = -1.85, 95% CI = -3.14 to -0.55), fatigue (SMD = -3.40, 95% CI = -5.54 to -1.26), and systolic blood pressure (MD = -3.54, 95% CI = -6.67 to -0.40) in adults. In pediatric patients, IVR significantly lowered pain (SMD = -1.17, 95% CI = -1.84 to -0.50) and anxiety (SMD = -1.18, 95% CI = -1.77 to -0.59) but not heart rate (MD = 0.48, 95% CI = -2.38 to 3.34).

CONCLUSION

IVR effectively reduces anxiety, depression, fatigue, systolic blood pressure, pain, and anxiety in cancer patients. More robust RCTs are needed for further IVR research.

Effects of Walking Combined With Resistance Band Exercises on Alleviating Cancer-Related Fatigue: A Systematic Review and Meta-analysis of Randomized Controlled Trials

BACKGROUND

Cancer-related fatigue (CRF) is a common symptom, and exercise has shown potential in alleviating CRF. However, there is a need for diverse exercise options tailored to individual patient needs.

OBJECTIVE

To evaluate the overall effects of a combined walking and resistance band exercise intervention in relieving CRF among cancer patients through randomized controlled trials.

METHODS

Comprehensive searches were conducted in multiple databases to identify relevant studies up until March 2023. Inclusion criteria required the intervention to involve walking combined with elastic band training, with a clear exercise protocol description. The primary outcome was CRF, and secondary outcomes included walking steps, distance, mood distress, and quality of life. Standardized mean differences (SMDs) with 95% confidence intervals (CIs) were calculated using random-effects models.

RESULTS

Ten trials were included. The intervention group showed significant improvements in CRF (SMD, -0.40; 95% CI, -0.60 to -0.20), mood distress (SMD, -0.30; 95% CI, -0.53 to -0.07), and daily walking steps (SMD, 0.52; 95% CI, 0.07-0.96) compared with the control group. Although the 6-Minute Walk Test and quality of life did not show significant differences, a trend toward improvement was observed in the intervention group. Adverse events related to the intervention were infrequent.

CONCLUSION

A combined walking and resistance band exercise intervention can effectively alleviate CRF and improve mood distress and daily walking steps among cancer patients.

IMPLICATIONS FOR PRACTICE

This exercise option may provide an additional strategy to manage CRF. Further research is needed to explore the optimal exercise prescription for individual patients.

Effect of bright light therapy on cancer-related fatigue and related symptoms: A systematic review and meta-analysis of randomized controlled trials

OBJECTIVE

Cancer-related fatigue (CRF) is a common side effect in cancer patients, possibly due to disrupted circadian rhythms. While bright light therapy (BLT) is known to modulate circadian rhythms, its role in mitigating CRF remains unclear. This study examined the impact of BLT on CRF and other related symptoms.

METHODS

PubMed, Embase, Cochrane Library, and SCOPUS databases were searched. The trials were selected according to the PRISMA guidelines. The severity and quality of CRF and related symptoms were investigated in post-BLT intervention.

RESULTS

Twelve trials involving 691 were included. BLT significantly reduced CRF (SMD = -0.92, 95% CI: -1.45 to -0.40, p < 0.00001, I2 = 90%) and insomnia (SMD = -2.80, 95% CI: -4.61 to -0.98, I2 = 0%). Subgroup analyzes were performed based on various factors including light illuminance and intervention duration. BLT was found to be effective in both preventing and treating CRF, though it did not significantly enhance sleep quality, depression, and quality of life (QoL).

CONCLUSION

BLT is a promising intervention for managing CRF in cancer patients. Its efficacy in improving sleep quality, and insomnia, reducing depression, and enhancing QoL requires further exploration. A 4-week BLT intervention with ≥10,000 lx is recommended for preventing and treating CRF, with longer or less intense interventions also showing effectiveness. Otherwise, BLT exhibited minimal adverse effects.

Coherent Subcycle Optical Shock from a Superluminal Plasma Wake

We propose exploiting the superluminal plasma wake for coherent Cherenkov radiation by injecting a relativistic electron beam (REB) into a plasma with a slowly varying density up-ramp. Using three-dimensional particle-in-cell and far-field time-domain radiation simulations, we show that an isolated subcycle pulse is coherently emitted towards the Cherenkov angle by bubble-sheath electrons successively at the rear of the REB-induced superluminal plasma wake. A theoretical model based on a superluminal current dipole has been developed to interpret such coherent radiation, and agrees well with the simulation results. This radiation has ultrashort attosecond-scale duration and high intensity, and exhibits excellent directionality with ultralow angular divergence and stable carrier envelope phase. Its intensity increases with the square of the propagation length and its central frequency can be easily tuned over a wide range, from the far infrared to the ultraviolet.

Effectiveness of Cryotherapy on Cancer Therapy-Induced Oral Mucositis: An Umbrella Review

BACKGROUND

Oral mucositis (OM) considerably affects the experience of patients with cancer during treatment. This study investigated the effects of cryotherapy on cancer therapy-induced OM.

OBJECTIVE

This study aimed to systematically appraise evidence on whether cryotherapy can reduce the incidence and severity of OM.

METHODS

We conducted an umbrella review to examine the effect of cryotherapy on cancer-related OM. The primary outcome was the incidence and severity of OM. We performed a subgroup analysis including solid cancers and hematological malignancies.

RESULTS

Five meta-analyses were included. Cryotherapy could more effectively reduce the incidence of severe OM (risk ratio [RR], 0.37; 95% prediction interval [PI], 0.22-0.64). In the subgroup analyses of solid cancers or hematological malignancies, cryotherapy significantly reduced the incidence of grades 2 to 4 OM in patients with solid cancers (RR, 0.51; 95% PI, 0.34-0.78 and RR, 0.52; 95% PI, 0.36-0.74). However, no significant difference was observed in the incidence of OM in patients with hematological malignancies regarding any grade or grade 3 or 4 OM. Moreover, cryotherapy did not significantly reduce the OM duration (mean difference, -0.13; 95% PI, -20.89 to 20.63; mean difference, -2.99, 95% PI, -8.10 to 2.12).

CONCLUSION

Cryotherapy can reduce the incidence of severe OM induced by chemotherapy or radiotherapy.

IMPLICATION FOR PRACTICE

We recommend the inclusion of this safe, simple, and convenient intervention in chemotherapy or radiotherapy plans. Additional clinical trials are warranted to extend the limited evidence on the effectiveness of cryotherapy in reducing the severity and duration of OM.

Efficacy of smartphone-based virtual reality relaxation in providing comfort to patients with cancer undergoing chemotherapy in oncology outpatient setting in Indonesia: protocol for a randomised controlled trial

INTRODUCTION

Patients with cancer undergoing chemotherapy experience various physical and psychological problems and discomfort. Virtual reality (VR) can be used in technology-based non-pharmacological therapy that can serve as a potential distractor in the symptom management of patients with cancer undergoing chemotherapy. We propose a smartphone-based virtual reality relaxation (S-VR) technique as a complementary modality to provide comfort to patients with cancer, and we will evaluate its effect on patients with cancer undergoing chemotherapy.

METHODS AND ANALYSIS

We will recruit 80 patients from the One Day Chemotherapy 'Tulip' Center of Dr. Sardjito General Hospital, Yogyakarta, Indonesia. This will be a two-arm parallel randomised controlled trial, with a 1:1 allocation and the primary outcome assessor blinded. This study will be divided into two groups: (1) an intervention group, with participants receiving 360° panoramic video content and music relaxation intervention through a VR device (head-mounted display) placed on their head during chemotherapy for ±10 min plus standard care and (2) a control group, with participants receiving guided imagery relaxation therapy in the form of a leaflet plus standard care. We will measure the outcomes after one chemotherapy cycle for each participant. The primary outcome is the effectiveness of the S-VR in improving the comfort of patients. The secondary outcome is the effect of the S-VR on the patients' symptom management self-efficacy, pain, anxiety, blood pressure (systolic blood pressure and diastolic blood pressure) and pulse rate.

ETHICS AND DISSEMINATION

This study was approved by the Medical and Health Research Ethics Committee of the Faculty of Medicine, Public Health and Nursing of Universitas Gadjah Mada-Dr. Sardjito General Hospital, Yogyakarta, Institutional Review Board (approval number: KE/FK/0301/EC/2023). Written informed consent will be obtained from all participants who enrol in the study. Dissemination will be conducted through peer-reviewed publications and conference presentations.

TRIAL REGISTRATION NUMBER

NCT05756465.

Branching of High-Current Relativistic Electron Beam in Porous Materials

Propagation of high-current relativistic electron beam (REB) in plasma is relevant to many high-energy astrophysical phenomena as well as applications based on high-intensity lasers and charged-particle beams. Here, we report a new regime of beam-plasma interaction arising from REB propagation in medium with fine structures. In this regime, the REB cascades into thin branches with local density a hundred times the initial value and deposits its energy 2 orders of magnitude more efficiently than that in homogeneous plasma, where REB branching does not occur, of similar average density. Such beam branching can be attributed to successive weak scatterings of the beam electrons by the unevenly distributed magnetic fields induced by the local return currents in the skeletons of the porous medium. Results from a model for the excitation conditions and location of the first branching point with respect to the medium and beam parameters agree well with that from pore-resolved particle-in-cell simulations.

Cancer-related fatigue classification based on heart rate variability signals from wearables

Background

Cancer-related fatigue (CRF) is the most distressing side effect in cancer patients and affects the survival rate. However, most patients do not report their fatigue level. This study is aimed to develop an objective CRF assessment method based on heart rate variability (HRV).

Methods

In this study, patients with lung cancer who received chemotherapy or target therapy were enrolled. Patients wore wearable devices with photoplethysmography that regularly recorded HRV parameters for seven consecutive days and completed the Brief Fatigue Inventory (BFI) questionnaire. The collected parameters were divided into the active and sleep phase parameters to allow tracking of fatigue variation. Statistical analysis was used to identify correlations between fatigue scores and HRV parameters.

Findings

In this study, 60 patients with lung cancer were enrolled. The HRV parameters including the low-frequency/high-frequency (LF/HF) ratio and the LF/HF disorder ratio in the active phase and the sleep phase were extracted. A linear classifier with HRV-based cutoff points achieved correct classification rates of 73 and 88% for mild and moderate fatigue levels, respectively.

Conclusion

Fatigue was effectively identified, and the data were effectively classified using a 24-h HRV device. This objective fatigue monitoring method may enable clinicians to effectively handle fatigue problems.

Comparison of the effects of acupotomy and acupuncture on knee osteoarthritis: A systematic review and meta-analysis

BACKGROUND AND PURPOSE

Acupotomy and acupuncture are both treatments for knee osteoarthritis symptoms. However, acupotomy also has the additional anatomical effect of dissecting inflamed tissue. The problem this study aims to address is whether acupotomy is a better treatment than acupuncture in treating knee osteoarthritis.

METHODS

We searched the PubMed, Embase, Cochrane Library, China National Knowledge Infrastructure, Airiti Library, and Wanfang Data databases from inception to March 2022 for randomized controlled clinical trials (RCTs) comparing the effects of acupotomy and acupuncture in patients with knee osteoarthritis.

RESULTS

In total, we identified 43 RCTs in this meta-analysis. Compared to the acupuncture group, acupotomy had a higher cure rate (odds ratio (OR) 2.94, 95% confidence interval (CI) 2.36 to 3.65), indicating a better improvement in daily activity function. Acupotomy was also more effective in pain relief and knee score improvement. However, some RCTs indicated that adverse events in the acupotomy group were greater than in the acupuncture group (OR 1.23, 95% CI 0.42 to 3.60).

CONCLUSION

Our findings indicated that acupotomy was a more effective treatment for knee osteoarthritis than acupuncture. However, most of the included RCTs had moderate risk of bias, meaning that more high-quality RCTs were needed.

Management of phyllodes tumor: A systematic review and meta-analysis of real-world evidence

BACKGROUND

Phyllodes tumor is rare but has a high recurrence rate. Treatment modalities and clinicopathological prognostic factors for recurrence remain unclear. The synthesis of real-world data can enable the integration of sufficient evidence on optimal treatment for this population.

METHODS

We searched PubMed, Embase, and Cochrane Library databases for studies focusing on the management of phyllodes tumor including the surgical margin, different clinicopathological prognostic factors, and postoperative adjuvant radiotherapy versus no radiotherapy.

RESULTS

Fifty-two studies were retrieved. The pooled estimated recurrence rates of benign, borderline, and malignant tumors were 7.1%, 16.7%, and 25.1%, respectively. Surgical margins of 1 mm (odds ratio [OR]: 0.4, 95% confidence interval [CI]: 0.27-0.61) and 1 cm (OR: 0.45, 95% CI: 0.15-0.85) resulted in significantly higher recurrence rates. Postoperative adjuvant radiotherapy significantly reduced the recurrence rate of malignant tumors relative to no radiotherapy (P = 0.034) but did not significantly reduce the recurrence rates of overall and borderline tumors. Regarding clinicopathological features, moderate or severe stromal atypia and hypercellularity, stromal overgrowth, mitotic number of 5, tumor necrosis, tumor border, and margin status were determined as independent prognostic factors for recurrence, except a tumor size of 5 cm.

CONCLUSION

The ideal surgical margin for phyllodes tumor incision should be at least 1 cm in width. Adjuvant radiotherapy reduced the recurrence of malignant tumor. By identifying patients with poor clinicopathological risk factors, surgeons may reduce the recurrence rate of phyllodes tumor.

Comparison between subjective and objective fatigue in patients with lung cancer and cancer-free participants: Evaluation of diagnostic criteria for cancer-related fatigue

440

Background: Cancer-related fatigue is one of the most distressing symptoms of cancer patients. Finding a patient's fatigue often requires the use of a subjective assessment scale, such as the Brief Fatigue Inventory (BFI). There are few objective ways to measure fatigue. The aim of this study was to evaluate whether objective cancer-related fatigue (CRF) diagnostic criteria can differentiate cancer from cancer-free participants and to explore the relationship between subjective and objective fatigue. Methods: In this study, we used a photoplethysmography (PPG) smartband device to collect the PPG information from the patients. During PPG measurements, the heart rate variability (HRV) signal was included in the data collection process for subsequent calculation of the LF/HF ratio. Participants completed a self-report measure to assess demographics, fatigue levels, and brief sleep diaries for the next 7 days. At the same time, the participants wore a wristband to collect HRV signals, which triggered HRV every hour over a 24-hour period for 7 consecutive days. Results: Cancer patients (n = 71) and cancer-free controls (n = 75) were studied. Study participants completed CRF questionnaires and heart rate variability (HRV) records. The smartband can be worn continuously for 120 hours as an objective measure of activity phase, sleep phase and HRV. Compared with controls, cancer patients were more fatigued and were more likely to be disturbed by fatigue (t = -3.73, p < 0.001), especially general activity (t = -2.93, p < 0.001), walking ability (t = -3.6, p < 0.001) and normal work (t = -2.18, p = 0.03). Wearing the bracelet can get the LF/HF value of HRV in the time domain. The LF to HF and LF/HF disorder ratios were further divided into active and sleep phases. During sleep phase, the LF/HF disorder ratio was higher in the cancer group than in the control group regardless of whether fatigue was mild or moderate (t = -2.5, p = 0.01; t = -2.8, p = 0.01, respectively). The LF/HF disorder ratios was higher in cancer patients with mild fatigue than in cancer-free participants during sleep phase (40% vs 20%, respectively). Cancer patients with moderate fatigue had higher incidence of LF/HF disorder ratios than cancer-free participants (50% vs 20%, respectively). Conclusions: It can be concluded that the diagnostic criteria of subjective and objective CRF can distinguish cancer and cancer-free cases. Using this objective fatigue device could provide an indicator for further clinical monitoring. Clinical trial information: NCT04300842.

Probiotics treatment for Parkinson disease: a systematic review and meta-analysis of clinical trials

BACKGROUND AND AIMS

People with Parkinson disease (PwP) exhibit gut dysbiosis and considerable gastrointestinal (GI) symptoms. Probiotics, beneficial strains of microorganisms, supplement and optimize the intestinal environment and alleviate GI symptoms among elderly people. We conducted a systematic review and meta-analysis of clinical trials to investigate the effects of probiotics on PwP.

METHODS

We searched the PubMed, Embase, and Cochrane Library databases. Major outcomes were the effects on GI symptoms, including bowel movement and stool characteristics. This study was registered with PROSPERO (CRD42021262036).

RESULTS

Six randomized controlled trials (RCTs) and two open-label studies were included. Most of the probiotic regimens were based on Lactobacillus and Bifidobacterium. Six studies investigated the benefit of probiotics for GI symptoms, especially for PwP with functional constipation, and two RCTs assessed probiotics' effect on systematic metabolism and inflammation. In the meta-analysis, probiotic treatment significantly increased the frequency of bowel movements among PwP (mean difference [MD]: 1.06 /week, 95% confidence interval [CI]: 0.61 to 1.51, p < 0.001, I² = 40%). Additionally, probiotic treatment significantly normalized stool consistency (standard MD: 0.61, 95% CI = 0.31 to 0.91, p < 0.001, I² = 0%).

CONCLUSIONS

Although the probiotic compositions varied, probiotic treatment significantly attenuated constipation for PwP and exhibited possible systematic effects on inflammation and metabolism. Given the tolerability of probiotics, the present meta-analysis may provide more consolidated evidence of the benefit of probiotics on constipation in PwP and a possible new therapeutic approach for disease modification.

Effect of progressive muscle relaxation on postoperative pain, fatigue, and vital signs in patients with head and neck cancers: A randomized controlled trial

OBJECTIVE

Surgery for head and neck cancers are associated with significant preoperative stress. We investigated the effects of progressive muscle relaxation (PMR) on postoperative pain, fatigue, and vital signs in patients with head and neck cancers.

METHODS

All patients were hospitalized and randomly assigned to intervention or usual care groups. A generalized estimating equation was used to evaluate the PMR effects on pain and symptoms across the preoperative day to postoperative day 10.

RESULTS

The PMR group displayed significantly lower overall pain and muscle tightness than control group along with the timeline of multiple measurements (p < 0.01). PMR significantly reduces sleep disturbances and levels of fatigue, anxiety, and depression compared with the control group with time trend (p < 0.01). PMR also lowered the respiratory rates and diastolic blood pressure (p < 0.01).

CONCLUSIONS

PMR can reduce sleep disturbances and levels of pain, fatigue, muscle tightness, anxiety, and depression in patients with head and neck cancer undergoing major surgeries. Future study should focus on improving the effectiveness of the exercise and standardization of the application.

PRACTICAL IMPLICATIONS

progressive muscle relaxation help relieve discomforts in patients with head and neck cancers with minimal costs and efforts.

3D Virtual Reality Smartphone Training for Chemotherapy Drug Administration by Non-oncology Nurses: A Randomized Controlled Trial

Chemotherapy agents are cytotoxic materials. Thus, there is a need for the operators to be familiar with the knowledge and procedures before operation. We conducted a randomized controlled trial investigating the effectiveness of an immersive 3D VR teaching of chemotherapy administration operated in a smartphone coupled with a visual and audio device. We adopted a two-arm single-blind design and recruited 83 nurses, and they were randomized using a cluster approach. The VR group learned chemotherapy administration through VR, while the controlled group learned through document reading. The Knowledge and Attitude of Chemotherapy Administration (KACA) was administrated before the intervention, while the Objective Structured Clinical Examination (OSCE) and the Checklist of Action Accomplishment (CAA) were administrated one month after the intervention. The VR group scored higher than the controlled group in the CAA (95.69 ± 5.37 vs. 91.98 ± 9.31, p = 0.02) and the OSCE (73.07 ± 10.99 vs. 67.44 ±10.65, p = 0.02). Stepwise regression demonstrated that service years, an education level of undergraduate or above, and VR exposure contributed positively to the OSCE score (adjusted R² = 0.194, p = 0.028). The use of VR improves the learning efficacy of chemotherapy administration in non-oncology nurses. We recommend using VR as a teaching tool for chemotherapy administration and other chemotherapy-related skills in a VR learning group with senior nurses with higher education levels as advisors. The study provides an approach to online training, especially during the COVID-19 pandemic. (CONSORT 2010 guidelines, registry number: NCT 04840732).

A Retrospective Cross-sectional Study on the Risk Factors of Recurrent Falls Among Inpatients

BACKGROUND

Recurrent falls are more likely to cause injuries and disabilities than single falls.

PURPOSE

This study investigated the incidence and risk factors of recurrent falls among inpatients.

METHODS

We analyzed inpatient fall data from the anomaly event notification database and electronic medical records of a hospital. We collected data regarding 1059 inpatients who had fallen during their hospital stay. Among these inpatients, 390 (36.83%) had fallen within the previous year.

RESULTS

Inpatients in the orthopedics and neurology wards were at a higher risk of recurrent falls than those in surgical wards; inpatients who were physically dependent were at a higher risk of recurrent falls than those who were physically independent; inpatients with poor vision were at a lower risk of recurrent falls than those without this issue; and inpatients who were using antidepressants were at a higher risk of recurrent falls than those who were not using antidepressants.

CONCLUSION

The risk of recurrent falls is highly correlated with ward type, physical independence, self-perceived good vision, and use of antidepressants.

Effects of Early Palliative Care in Advanced Cancer Patients: A Meta-Analysis

Objective: Advanced cancer patients often suffer from a reduced quality of life (QoL) and cancer-related symptoms. Early palliative care may improve their QoL and symptom severity. Methods: We conducted a meta-analysis of the effects of early palliative care on QoL, symptom severity, and other outcomes in advanced cancer patients, and searched PubMed, Embase, CINAHL, MEDLINE, and the Cochrane Library databases for potential randomized controlled trials (RCTs). The primary outcome was QoL. The secondary outcomes were symptom intensity and functional well-being (Trial Outcome Index, TOI). The study protocol has been registered and approved by PROSPERO (CRD42020164047). Results: We obtained 12 RCTs enrolling 2980 participants. Compared with the usual care, early palliative care significantly improved QoL at ≤ 3 months (SMD = .16, 95% CI = .05-.27) and when treated more 3 months (SMD = .26, 95% CI = .11-.40). Compared with usual treatment, patients who received early palliative care exhibited a significant reduction in symptom intensity when treated more than 3 months (SMD = .18, 95% CI = .06-.31) and in TOI ≤ 3 months (SMD = .28, 95% CI = .11-.45). Conclusions: Early palliative care improves QoL, symptom intensity, and TOI in advanced cancer patients. We recommend introducing early palliative care for advanced cancer patients as the approach provides additional clinical benefits compared with usual care.

Examination of Gender-Related Differential Item Functioning Through Poly-BW Indices

The existing differential item functioning (DIF) detection approaches relying on item difficulty or item discrimination are limited for understanding the associates of DIF items, and consequently, DIF items were conventionally either deleted or ignored. Given the importance of minimizing DIF items in test construction, teachers or testing practitioners need more information regarding possible associates of DIF items. Using an example of a teacher-made mathematics achievement test, this study aimed to examine how the Poly-BW indices (power, defenselessness, disturbance, and hint) contributed to the properties of gender-related DIF items. Data from a 34-item mathematics achievement test that involved 1,439 seventh-grade students from Taiwan (51.01% boys and 48.99% girls) showed that the differences of the defenselessness (mp) and power (cp) indices between men and women served as salient predictors of the DIF measures estimated by the Poly Simultaneous Item Bias Test (Poly-SIBTEST) procedure and with satisfactory accuracy of hit rates. Items with relatively large defenselessness for men were likely to present male-favoring DIFs, whereas items with relatively large power for men were likely to present female-favoring DIFs. The Poly-BW indices yielded directions for modifying items for teachers in practice.

Prevalence of grief disorders in bereaved families of cancer patients: A meta-analysis

BACKGROUND

Cancer caregiving is a distressing experience and loss of a loved one can lead to intense grief and other adverse effects. However, the prevalence of grief disorders among families associated with cancer-related deaths remains unknown.

AIM

This study aimed to determine the prevalence of grief disorders among families of patients with cancer to better inform clinicians, researchers, and policymakers.

DESIGN

Meta-analysis, PROSPERO number CRD42020209392.

DATA SOURCES

The databases of CINAHL, Embase, MEDLINE, PubMed, Scopus, PsycINFO, and Web of Science were comprehensively searched with no language restrictions. The quality of included studies was assessed with Hoy's criteria.

RESULTS

Among the 3046 records screened, 19 studies were eligible for meta-analysis, with a total of 14,971 participants. The pooled prevalence rate of grief disorders was estimated at 14.2% (95% CI, 11.7%-16.7%), ranging from 7% to 39%. The prevalence was higher in females (10%; 95% CI, 8.2%-12.1%), those who are religious (9.55%; 95% CI, 8.97%-10.16%), spouses of the deceased (7.78%; 95% CI, 6.08%-9.69%), and families of patients with neurological cancers (6.4%; 95% CI, 0.10%-19.9%). Educational levels, study locations, diagnosis tools, time post-after loss, and study methods seemed not to affect the prevalence of grief disorders in families of patients with cancer.

CONCLUSIONS

As the prevalence of grief disorders in cancer-related bereavement is substantial, therefore, support including palliative care is important to reduce the burden of caregiving. In addition, future studies are needed to identify and explore effective strategies that can help reduce the burden caused by grief disorders after the death of the patient.

Nanoscale Electrostatic Modulation of Mega-Ampere Electron Current in Solid-Density Plasmas

Transport of high-current relativistic electron beams in dense plasmas is of interest in many areas of research. However, so far the mechanism of such beam-plasma interaction is still not well understood due to the appearance of small time- and space-scale effects. Here we identify a new regime of electron beam transport in solid-density plasma, where kinetic effects that develop on small time and space scales play a dominant role. Our three-dimensional particle-in-cell simulations show that in this regime the electron beam can evolve into layered short microelectron bunches when collisions are relatively weak. The phenomenon is attributed to a secondary instability, on the space- and timescales of the electron skin depth (tens of nanometers) and few femtoseconds of strong electrostatic modulation of the microelectron current filaments formed by Weibel-like instability of the original electron beam. Analytical analysis on the amplitude, scale length, and excitation condition of the self-generated electrostatic fields is clearly validated by the simulations.

Relieving from Breathlessness in the Wind: A Meta-Analysis and Subjective Report of Effectiveness of Fan Blowing in Patients with Cardiorespiratory Diseases or Cancer

OBJECTIVES

Breathlessness is common among terminally ill patients with cardiorespiratory disease or cancer. The experience may induce secondary physiological and behavioral responses that limit patient well-being and independence and cause emotional distress.

METHODS

We conducted a meta-analysis on randomized controlled trials (RCTs) that examined the effectiveness of fan blowing on breathlessness among patients with cardiorespiratory diseases or cancer. The PubMed, Cochrane Library, Embase, SCOPUS, and CINAHL databases were searched to retrieve potential articles. The primary outcome was breathlessness severity. The secondary outcomes were SpO₂, anxiety, depression, and quality of life. Also, we presented the changes of vital signs and subjective feeling of a male patient who used fan blowing for relieving his breathlessness.

RESULTS

Eight RCTs were available for analysis. The pooled results demonstrated no significant difference in breathlessness severity between fan-to-face blowing and control methods (standard mean difference: -0.21, 95% confidence interval: -.59 to .17); however, a significant reduction in breathlessness severity was observed in the short-time intervention compared with long-time intervention. A trend occurred toward significance in the reduction of respiratory rate in fan-to-face blowing compared with control methods (MD: -.64, 95% CI: -1.37 to .09). No differences were observed between groups in oxygen saturation, anxiety, depression, or QoL. The male patient who used fan blowing showed an improved vital signs and a satisfied subjective feeling.

CONCLUSIONS

Consistent short-time fan-to-face blowing is effective for relieving breathlessness among conscious terminally ill patients with cardiorespiratory diseases or cancer. The use of this convenient method for relieving breathlessness symptoms in terminally ill patients is recommended.

Self-Efficacy Mediates Acculturation and Respite Care Knowledge of Immigrant Caregivers

Past studies have shown that acculturation and self-efficacy can affect respite care knowledge, which are notable issues among immigrant caregivers due to the rapid increasing aging family members. The aim of this study was to investigate relationships among acculturation, self-efficacy, and respite care knowledge in immigrant caregivers, and to determine the mediating effects of self-efficacy on the relationship between acculturation and respite care knowledge. A cross-sectional design was used. We enrolled 134 female immigrant caregivers who had married Taiwanese men and lived with care recipients who used LTC services. Based on Baron and Kenny' mediating analytic framework, multiple regression and Sobel tests were used to examine whether self-efficacy mediated the relationship between acculturation and respite care knowledge. The findings showed that after controlling for confounding factors, acculturation and self-efficacy separately affected respite care knowledge (B = 0.229, standard error (SE) = 0.084; B = 0.123, SE = 0.049, respectively). Acculturation had a positive impact on respite care knowledge through self-efficacy (B = 0.181, SE = 0.084). Therefore, self-efficacy partially mediated the effect of acculturation on respite care knowledge, and accounted for 20.9% of the total mediating effect in this study. Acculturation predicted immigrant caregiver' respite care knowledge partially through self-efficacy. The association between acculturation and respite care knowledge was partially mediated by immigrant caregivers' self-efficacy. As a result, it was proposed that boosting self-efficacy could increase and drive immigrant caregivers' respite care knowledge. To assist this population in obtaining enough resources, targeted educational programs to promote immigrant caregivers' self-efficacy should be designed and implemented. Furthermore, health care practitioners should be aware of the relevance of immigrant caregivers' acculturation.

Effects of Low-Level Laser Therapy on Muscular Performance and Soreness Recovery in Athletes: A Meta-analysis of Randomized Controlled Trials

CONTEXT

Athletes must maintain their peak state of strength. Previous studies have investigated the effect of low-level laser therapy (LLLT) on muscular performance. A previous systematic review and meta-analysis has investigated this issue in healthy participants but not in physically active athletes.

OBJECTIVE

To investigate whether LLLT can improve muscular performance and soreness recovery in athletes.

DATA SOURCES

PubMed, EMBASE, and Cochrane Library.

STUDY SELECTION

Published randomized controlled trials and crossover studies till December 2020.

STUDY DESIGN

Systematic review and meta-analysis.

LEVEL OF EVIDENCE

Level 3.

DATA EXTRACTION

Assessment of study quality was rated using the risk of bias assessment method for randomized trials (Cochrane Handbook for Systematic Reviews of Interventions).

RESULTS

A total of 24 studies were included. LLLT application before exercise significantly improved lower-limb muscle strength in 24-hour, 48-hour, 96-hour, and 8-week follow-up groups. Furthermore, decreased soreness index, serum creatine kinase concentrations, interleukin-6, and thiobarbituric acid reactive substance concentrations and a trend toward the improvement of contract repetition number and VO₂ kinetic outcomes were observed.

CONCLUSION

Although a definite therapeutic effect of LLLT is yet to be established, the current evidence supports that LLLT use improves muscular performance in physically active athletes. Additional trials with large sample sizes and robust design should be conducted before strong recommendations are made.

Measurement of Cancer-Related Fatigue Based on Heart Rate Variability: Observational Study

BACKGROUND

Cancer-related fatigue is a serious side effect of cancer, and its treatment can disrupt the quality of life of patients. Clinically, the standard method for assessing cancer-related fatigue relies on subjective experience retrieved from patient self-reports, such as the Brief Fatigue Inventory (BFI). However, most patients do not self-report their fatigue levels.

OBJECTIVE

In this study, we aim to develop an objective cancer-related fatigue assessment method to track and monitor fatigue in patients with cancer.

METHODS

In total, 12 patients with lung cancer who were undergoing chemotherapy or targeted therapy were enrolled. We developed frequency-domain parameters of heart rate variability (HRV) and BFI based on a wearable-based HRV measurement system. All patients completed the BFI-Taiwan version questionnaire and wore the device for 7 consecutive days to record HRV parameters such as low frequency (LF), high frequency (HF), and LF-HF ratio (LF-HF). Statistical analysis was used to map the correlation between subjective fatigue and objective data.

RESULTS

A moderate positive correlation was observed between the average LF-HF ratio and BFI in the sleep phase (ρ=0.86). The mapped BFI score derived by the BFI mapping method could approximate the BFI from the patient self-report. The mean absolute error rate between the subjective and objective BFI scores was 3%.

CONCLUSIONS

LF-HF is highly correlated with the cancer-related fatigue experienced by patients with lung cancer undergoing chemotherapy or targeted therapy. Beyond revealing fatigue levels objectively, continuous HRV recordings through the photoplethysmography watch device and the defined parameters (LF-HF) can define the active phase and sleep phase in patients with lung cancer who undergo chemotherapy or targeted chemotherapy, allowing a deduction of their sleep patterns.

Psychotherapy for the Treatment of Anxiety and Depression in Patients with Parkinson Disease: A Meta-Analysis of Randomized Controlled Trials

OBJECTIVE

Anxiety and depression are major psychiatric nonmotor symptoms (NMSs) of Parkinson disease (PD). Although several studies have investigated the effects of psychotherapeutic interventions, particularly cognitive-behavioral therapy (CBT), for alleviating anxiety and depression in patients with PD, the findings have been inconclusive because of the small sample size and the lack of a unified protocol for such treatments. Thus, the present meta-analysis of randomized controlled trials (RCTs) was conducted to assess the effect of psychotherapy on PD-related anxiety and depression.

DESIGN

Systematic review and meta-analysis.

SETTING AND PARTICIPANTS

Relevant RCTs were extracted from PubMed, Embase, Cumulative Index to Nursing and Allied Health Literature, and Cochrane Library databases. This study was registered in PROSPERO under the number CRD 42020165052.

MEASURES

The primary and secondary outcomes were changes in the anxiety score and depressive symptoms, respectively.

RESULTS

Fourteen RCTs including 507 patients with PD were analyzed. The interventions were classified as CBT and non-CBT. CBT significantly reduced anxiety at the end of the study (standardized mean difference = -0.85, 95% confidence interval = -1.12 to -0.58, P < .001, I² = 0%), whereas non-CBT did not. Greater heterogeneity in the effects of non-CBT treatment was observed. CBT was significantly beneficial for depression (standardized mean difference = -0.83, 95% confidence interval = -1.26 to -0.40, P < .001, I² = 55%). Despite the greater heterogeneity in the effects, non-CBT interventions were also effective in alleviating depressive symptoms.

CONCLUSION AND IMPLICATIONS

CBT is effective for the management of anxiety and depression in patients with PD. Routine treatment for patients with this condition is strongly recommended.

Mediation of Coping Strategies among Patients with Advanced Cancer

The purpose of this study was to test the mediating effects of coping on relationships of psychological distress and stress with anxiety, depression, and quality of life. A cross-sectional and correlational research study was used to recruit a sample of 440 patients with advanced cancer in Indonesia. A bootstrap resampling procedure was used to test the significance of the total and specific indirect effects of coping. Data analysis showed that problem-focused coping (PFC) mediated relationships of psychological distress and stress on depression, anxiety and functional well-being. PFC also mediated the relationship between stress and social well-being. Emotional-focused coping (EFC) mediated the relationship of stress with physical and emotional well-being. EFC also mediated the relationships between psychological distress and physical well-being. Thus, proper assessments and interventions should be tailored and implemented for patients in order to facilitate their use of coping strategies when needed in stressful situations.

Virtual reality teaching in chemotherapy administration: Randomised controlled trial

AIMS AND OBJECTIVES

This study examined the effect of virtual reality (VR)-based documents (VRdocs) on knowledge and attitude towards chemotherapy administration in nursing students.

BACKGROUND

Chemotherapeutic drugs in cancer patients are a complicated and dangerous process. However, despite the high toxicity of the chemotherapeutic drugs, the compulsory or internship courses in nursing schools do not include training in operational chemotherapeutics and its associated safety measures.

DESIGN

A randomised controlled trial based on the CONSORT 2010 guidelines (registry number: NCT03707210).

METHOD

A total of 77 students were randomised to an experimental (VRdocs, n = 38) or a control group (n = 39). Pre- and posttest data were collected. After the pretest, the control group received the education documents, whereas, the experimental group used VR software consisting of an application about chemotherapy administration. Finally, the effectiveness of the intervention was self-evaluated using questionnaires after 7 days.

RESULTS

The posttest scores for knowledge (F = 6.412, p = .013) and attitude in the experimental group were significantly different from those in the control group (F = 8.469, p = .005). Compared with the control group, a significant number of students in the experimental group indicated their higher recommendation score for the VRdocs (p = .0001).

CONCLUSION

Schools must provide a variety of handouts and teaching methods to educate nursing students about high-risk nursing techniques. Methods using VR can address the shortcomings of the traditional documents, and the use of both methods simultaneously can produce better learning results.

RELEVANCE TO CLINICAL PRACTICE

Virtual reality based documents were provided to the participants to understand the preparation, implementation, and safety of chemotherapy. VRdocs allow students to re-learn high-risk care techniques without the influence of time and space and may prove useful for other nursing courses.

Humanity behind the intention of primary caregiver to choose withdrawing life-sustaining treatment for terminating patients

OBJECTIVE

Mechanical ventilation, a measure of life-sustaining treatment (LST), may not be helpful and can be devastating for patients with terminal illness. We explored the effects of demographic characteristics, attitude, subjective norms, and perceived behavioral control on the behavioral intentions of primary caregivers to withdraw LST of long-term ventilator-dependent patients.

METHODS

Primary caregivers of ventilator-dependent patients in the respiratory care units of six hospitals participated in the study. A cross-sectional design including the domains of attitude, subjective norms, perceived behavioral control, and behavioral intention was adopted.

RESULTS

Valid data for 99 participants were analyzed using logistic regression. Religious belief, a spousal relationship with the patient, item 5 in subjective norms, and item 5 in perceived behavioral control positively influenced the intention to withdraw patient LST.

CONCLUSIONS

Religious beliefs, a spousal relationship, perceived behavioral control (confidence in relieving patient suffering), and the opportunity of current favorable subjective norms are major determinants of the intention to withdraw patients' LST.

PRACTICE IMPLICATIONS

Shared decision-making with the kin and primary caregivers of long-term ventilator-dependent patients at the end of life is crucial.

Mediating effects of depression on anxiety and leisure constraints in patients with breast cancer

Background

Patients with breast cancer often exhibit high levels of anxiety and depression and a considerable decrease in their ability to participate in leisure activities, which result in the long-term disruption of their daily lives. This study intended to explore the relationships among anxiety, leisure constraints, and depression and evaluate whether depression mediates the effects of anxiety on leisure constraints in patients with breast cancer.

Method

This prospective study included 106 patients with breast cancer. All the patients completed the Taiwanese version of the Hospital Anxiety and Depression Scale and Leisure constraints questionnaire. Path analysis was used to test the mediating role of depression.

Results

Leisure constraints, anxiety, and depression were positively interrelated and co-occurred in the patients. The accelerated bootstrapping confidence intervals of the indirect effect did not include zero (0.276–1.663). Moreover, depression completely mediated the effects of anxiety on leisure constraints in patients with earlier cancer stages but not in patients with advanced cancer stages.

Conclusions

Depression is a crucial mechanism underlying the relationship between anxiety and leisure constraints in patients with breast cancer. Although many patients experience minimal disruption of activities and roles during survivorship, they are unable to perform functional activities and satisfactorily play their roles. This is the first study to explore leisure constraints in patients with breast cancer and investigate the mediating role of depression that underlies the relationship between anxiety and leisure constraints. The current findings are clinically crucial because they suggest the need to consider the simultaneous management of anxiety and depression for alleviating leisure constraints.

Relationship Between Diurnal Cortisol Profile and Sleep Quality in Patients With Hepatocellular Carcinoma

Purpose:

Hepatocellular carcinoma (HCC) is the second leading cause of cancer mortality worldwide. Sleep problems are common in HCC patients and may be attributable to disturbances in the circadian rhythm. Research into the role of circadian rhythms in sleep quality among HCC patients is lacking, however. This study investigated the relationship between the diurnal cortisol profile and sleep quality among HCC patients. We aimed to identify alterations in the diurnal cortisol profile in patients with HCC compared to healthy controls and investigate whether they were associated with poor sleep quality among HCC patients.

Methods:

Participants comprised 75 HCC patients and 33 healthy individuals. The Taiwanese version of the Pittsburgh Sleep Quality Index (PSQI-T) was administered to assess sleep quality. Saliva samples were collected on 3 consecutive days at five time points daily to measure diurnal cortisol levels.

Results:

In the HCC group, 89.3% of individuals were poor sleepers (PSQI-T > 5), whereas among healthy individuals, 30.3% were poor sleepers. While the healthy participants’ diurnal cortisol profile followed a typical pattern that peaked 30 min after waking and declined gradually throughout the day, the cortisol level in the HCC patients rebounded at bedtime. Higher cortisol levels were marginally correlated with poor sleep quality ( OR = 1.00007, p < .05).

Conclusions:

Our study suggests a potential association between disturbed circadian rhythm and poor sleep quality in HCC patients. Further investigation of the causal relationship between sleep and circadian rhythm is warranted.

Effects of photobiomodualtion therapy on breast cancer-related lymphoedema: A systematic review and meta-analysis of randomised controlled trials

OBJECTIVE

Lymphoedema characterised by the persistent accumulation of the interstitial fluid in peripheral tissues post breast cancer treatments. Photobiomodualtion therapy (PBMT) is widely used as supportive care in patients with breast cancer or breast cancer-related lymphoedema (BCRL). This systematic review and meta-analysis analysed the effectiveness and safety of PBMT for the treatment of BCRL.

METHOD

PubMed, EMBASE, PEDro, SCOPUS, CINAHL, and Cochrane Central Register of Controlled Trials were searched for RCTs on PBMT published before July 2019. Randomised controlled trials (RCTs) that evaluated the efficacy of PBMT on BCRL were included. The primary outcome was the arm circumference or volume, and secondary outcomes were grip strength and pain scores. This study is registered with PROSPERO (number CRD 42018102107).

RESULTS

We reviewed nine RCTs that included 316 patients and six studies for mata-analysis. We found no significant difference in the reduction of the arm circumference or arm volume after treatment, one month, and three month follow-up between the PBMT and control groups. Studies revealed no significant differences in the reduction in grip strength and pain scores at 0, 1, 2, and 3 month between the PBMT and control groups.

CONCLUSIONS

Although PBMT demonstrated a slight improvement in reducing arm circumference and arm volume, the results of our meta-analysis did not show significant benefits in relieving of lymphoedema. Further trials are needed to recruit more participants, and to evaluate the long-term efficacy and safety of PBMT in management of breast cancer-related lymphoedema.

Prophylactic management for taxane-induced nail toxicity: A systematic review and meta-analysis

OBJECTIVE

This meta-analysis was performed to assess the efficacy of cryotherapy and nail solution (NS) use in preventing nail toxicity (NT) induced by taxane-based chemotherapy.

METHODS

PubMed, EMBASE, Cochrane Library and ClinicalTrials.gov registry databases were searched for relevant studies published up to December 2018. The primary outcome was taxane-induced NT. Secondary outcomes were skin toxicity (ST), time to toxicity and patient comfort.

RESULTS

We reviewed three randomised control trials and six prospective studies with 708 patients. For meta-analysis, taxane-induced NT grading was compared. NT and ST were significantly lower in the cryotherapy patients than in the controls (grade 1 NT: risk ratio [RR] = 0.51, 95% confidence interval [CI] = 0.30-0.89; grade 2-3 NT: RR = 0.36, 95% CI = 0.11-1.12; total NT: RR = 0.49; 95% CI = 0.30-0.79; ST: RR = 0.46, 95% CI = 0.33-0.64). The NS-treated patients exhibited significantly lower NT than the controls.

CONCLUSIONS

Nail solution-treated or cryotherapy patients exhibited lower NT incidence and severity associated with taxane-based chemotherapy than the controls. For patients who can afford and comply with NS use or cryotherapy, these measures represent effective prophylactic management for taxane-induced NT and improve their quality of life and functional statuses. Further studies are needed to establish the routine usage protocols, long-term efficacy and safety for these interventions.

Optimal duration of compression stocking therapy following endovenous thermal ablation for great saphenous vein insufficiency: A meta-analysis

BACKGROUND

The need for patients to wear compression stockings after varicose vein surgery and the duration of compressions tocking therapy has been debated. This study isa meta-analysis of randomized controlled trials (RCTs) to determine the optimal duration of compression stocking therapy after endovenous thermal ablation (ETA) of the great saphenous vein.

METHODS

The PubMed, Embase, and Cochrane Library databases were searched before January 2019. Individual effect sizes were standardized, and a meta-analysis was conducted to calculate the pooled effect size by using a random effects model. The primary outcome was the severity of pain in the postoperative period. Secondary outcomes were quality of life (QoL), leg volume, bruising scores, consumptionof analgesic agents, recovery time off work, satisfaction, and the incidence rates of postoperative complications including paresthesia and phlebitis.

RESULTS

Five RCTsinvolving775 patients were reviewed. The long-duration (1-2 weeks) group significantly reduced postoperative pain at 1 week (mean difference [MD] 1.19; 95% confidence interval [CI]: 0.58-1.80) and recovery time off work (MD: 1.01 day, 95% CI: 0.06-1.96)when compared with the short-duration (24-48 h) group. However, the mean pain scores at 2 (0.1; 95% CI: 0-0.2) and 6 weeks postoperatively (-0.3; 95% CI: -1.09-0.49) did not differ significantly between the two groups. Moreover, the incidence rates of complication, paresthesia, and phlebitis did not differ significantly between the short-duration and long-duration groups.

CONCLUSION

The use of compression therapy for a long time (1-2 weeks) is better than short-term (24-48 h) use in terms of postoperative pain at 1 week and recovery off work. Hence, we recommend the prescription of 1-week compression stocking therapy after ETA in routine clinical practice. However, the available evidence is of variable quality, further well-structured RCTs with improved standardization of compression treatment, types of stockings, and target populations are warranted.

Prophylactic and therapeutic effects of honey on radiochemotherapy-induced mucositis: a meta-analysis of randomized controlled trials

PURPOSE

Oral mucositis is a common side effect of radiochemotherapy and may adversely affect the patients' quality of life (QoL). Honey application may reduce the mucositis grade in patients. Here, we conducted a meta-analysis of randomized controlled trials (RCTs) to evaluate the prophylactic and therapeutic effects of honey on radiochemotherapy-induced oral mucositis.

METHODS

Publications on RCTs were extracted from the PubMed, Embase, CINAHL, and Cochrane Library databases. The primary outcomes were mucositis grades and pain scores. Secondary outcomes were the recovery time and QoL. The study was registered with PROSPERO (number CRD42018108486).

RESULTS

Nineteen RCTs, involving 1276 patients, were reviewed. Honey considerably mitigated oral mucositis in both prophylactic and therapeutic phases. In the prophylactic phase, intolerable mucositis development was significantly prevented in the honey-treated group (RR = 0.18, 95% confidence interval [CI] = 0.09 to 0.41). Patients treated with honey showed significant decrease in pain scores in the first month of treatment (weighted mean difference [WMD] = - 3.25, 95% CI = - 4.41 to - 2.09) and at the end of the treatment (WMD = - 2.32, 95% CI = - 4.47 to - 0.18).

CONCLUSION

Honey, which is relatively cheap and easily available, prevented mucositis and effectively mitigate mucositis in patients after radiochemotherapy. Moreover, it significantly reduced the mucositis grade and engendered a fast and painless healing process. Therefore, honey use during and after radiochemotherapy is recommended for mucositis prevention and treatment.

Chitosan films promote formation of olfactory neurospheres and differentiation of olfactory receptor neurons

BACKGROUND

Olfactory dysfunction significantly impairs the life quality of patients. Therefore, a model needs to be developed for anosmia. Chitosan is a biodegradable natural polysaccharide that has been widely studied for regenerative purposes in the nervous system. However, whether chitosan promotes differentiation of olfactory receptor neurons or regulates formation of neurospheres in the olfactory system remains unexplored.

METHODOLOGY

Olfactory neuroepithelial cells were isolated from embryonic wistar rats on day 17, and cultured on controls and chitosan films for 12 days. The effects of treatment were assessed using immunocytochemistry, quantitative polymerase chain reaction and western blots following culturing. The substrate of poly-L-lysine-co-laminin was adopted as a control.

RESULTS

In contrast to the flat layer on controls, olfactory neuroepithelial cells form olfactory neurospheres on chitosan films with steadily increasing diameter. The olfactory neurospheres contain basal cells, as well as immature and mature olfactory receptor neurons. The expression level of olfactory marker protein is higher on chitosan films than those on controls in gene and protein levels, and the olfactory transduction elements also express a similar trend. Mature olfactory receptor neurons are found predominantly at the periphery of the olfactory neurospheres.

CONCLUSIONS

Chitosan films not only facilitate formation of olfactory neurospheres, but also promote differentiation of olfactory receptor neurons. Chitosan is a potential biomaterial to establish an in vitro culture model to treat olfactory dysfunction in future.

Evidence-based health care: A roadmap for knowledge translation

Evidence-based health care informs clinicians of choices regarding the most effective care based on the best available research evidence. However, concepts or instruments of evidence-based medicine are still fragmented for most clinicians. Substantial gaps between evidence and clinical practice remain. A knowledge translation roadmap may help clinicians to improve the quality of care by integration of various concepts in evidence-based health care. Improving research transparency and accuracy, conducting an updated systematic review, and shared decision making are the key points to diminish the gaps between research and practice.

Production of high-angular-momentum electron beams in laser-plasma interactions

It was shown that in the interactions of ultra-intense circularly polarized laser pulse with the near-critical plasmas, the angular momentum can be transferred efficiently from the laser beam to electrons through the resonance acceleration process. The transferred angular momentum increases almost linearly with the acceleration time t_{a} when the electrons are resonantly accelerated by the laser field. In addition, it is shown analytically that the averaged angular momentum of electrons is proportional to the laser amplitude a_{L}, and the total angular momentum of the accelerated electron beam is proportional to the square of the laser amplitude a_{L}^{2} for a fixed parameter of n_{e}/n_{c}a_{L}. These results are verified by three-dimensional particle-in-cell simulations. This regime provides an efficient and compact alternative for the production of high angular momentum electron beams, which may have many potential applications in condensed-matter spectroscopy, new electron microscopes, and bright x-ray vortex generation.