Single-cell NAD(H) levels predict clonal lymphocyte expansion dynamics.

Adaptive immunity requires the expansion of high-affinity lymphocytes from a heterogeneous pool. Whereas current models explain this through signal transduction, we hypothesized that antigen affinity tunes discrete metabolic pathways to license clonal lymphocyte dynamics. Here, we identify nicotinamide adenine dinucleotide (NAD) biosynthesis as a biochemical hub for the T cell receptor affinity-dependent metabolome. Through this central anabolic role, we found that NAD biosynthesis governs a quiescence exit checkpoint, thereby pacing proliferation. Normalizing cellular NAD(H) likewise normalizes proliferation across affinities, and enhancing NAD biosynthesis permits the expansion of lower affinity clones. Furthermore, single-cell differences in NAD(H) could predict division potential for both T and B cells, before the first division, unmixing proliferative heterogeneity. We believe that this supports a broader paradigm in which complex signaling networks converge on metabolic pathways to control single-cell behavior.

Demonstration Project of Long-Acting Antiretroviral Therapy in a Diverse Population of People With HIV.

BACKGROUND: Intramuscular cabotegravir (CAB) and rilpivirine (RPV) is the only long-acting antiretroviral therapy (LA-ART) regimen approved for people with HIV (PWH). Long-acting ART holds promise for improving outcomes among populations with barriers to adherence but is only approved for PWH who have virologic suppression with use of oral ART before initiating injectables. OBJECTIVE: To examine LA-ART in a population of PWH that includes those with viremia. DESIGN: Observational cohort study. SETTING: Urban academic safety-net HIV clinic. PATIENTS: Publicly insured adults living with HIV with and without viral suppression, high rates of unstable housing, mental illness, and substance use. INTERVENTION: Demonstration project of long-acting injectable CAB-RPV. MEASUREMENTS: Descriptive statistics summarizing cohort outcomes to date, based on pharmacy team logs and electronic medical record data. RESULTS: Between June 2021 and November 2022, 133 PWH at the Ward 86 HIV Clinic were started on LA-ART, 76 of whom had virologic suppression while using oral ART and 57 of whom had viremia. The median age was 46 years (IQR, 25 to 68 years); 117 (88%) were cisgender men, 83 (62%) had non-White race, 56 (42%) were experiencing unstable housing or homelessness, and 45 (34%) had substance use. Among those with virologic suppression, 100% (95% CI, 94% to 100%) maintained suppression. Among PWH with viremia, at a median of 33 days, 54 of 57 had viral suppression, 1 showed the expected 2-log10 reduction in HIV RNA level, and 2 experienced early virologic failure. Overall, 97.5% (CI, 89.1% to 99.8%) were projected to achieve virologic suppression by a median of 33 weeks. The current virologic failure rate of 1.5% in the cohort is similar to that across registrational clinical trials at 48 weeks. LIMITATION: Single-site study. CONCLUSION: This project demonstrates the ability of LA-ART to achieve virologic suppression among PWH, including those with viremia and challenges to adherence. Further data on the ability of LA-ART to achieve viral suppression in people with barriers to adherence are needed. PRIMARY FUNDING SOURCE: National Institutes of Health, City and County of San Francisco, and Health Resources and Services Administration.

The Statistical Fragility of Orbital Fractures: A Systematic Review of Randomized Controlled Trials.

BACKGROUND: The P value has often been used as a tool to determine the statistical significance and evaluate the statistical robustness of study findings in orthopedic literature. The purpose of this study is to apply both the fragility index (FI) and the fragility quotient (FQ) to evaluate the degree of statistical fragility in orbital fracture literature. We hypothesized that the dichotomous outcomes within the orbital fracture literature will be vulnerable to a small number of outcome event reversals and will be statistically fragile. METHODS: Using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA), the authors identified all dichotomous data for randomized controlled trials (RCTs) in orbital fracture literature and performed a PubMed search from 2000 to 2022. The FI of each outcome was calculated through the reversal of a single outcome event until significance was reversed. The FQ was calculated by dividing each FI by study sample size. The interquartile range (IQR) was also calculated for the FI and FQ. RESULTS: Of the 3,329 studies screened, 28 met the criteria with 10 RCTs evaluating orbital fractures included for analysis. A total of 58 outcome events with 22 significant (P < .05) outcomes and 36 nonsignificant (P ≥ .05) outcomes were identified. The overall FI and FQ for all 58 outcomes was 5 (IQR: 4 to 5) and 0.140 (IQR: 0.075 to 0.250), respectively. Fragility analysis of statistical significant outcomes and nonsignificant outcomes had an FI of 3.5 with no IQR and 5 (IQR 4-5), respectively. All of the studies reported a loss to follow-up data, where 20% (2) was greater than the overall FI of 5. CONCLUSION: The orbital fracture literature provides treatment guidance by relying on statistical significant results from RCTs. However, the RCTs in the orbital fracture peer-reviewed literature may not be statistically stable as previously thought. The sole reliance of the P value may depict misleading results. Thus, we recommend standardizing the reporting of the P value, FI, and FQ in the orbital fracture literature to aid readers in reliably drawing conclusions based on fragility outcome measures impacting clinical decision-making.

Financial Hardship and Quality of Life Among Patients With Advanced Cancer Receiving Outpatient Palliative Care: A Pilot Study.

BACKGROUND: Patients with advanced cancer are increasingly experiencing financial hardship (FH) and associated negative health outcomes. OBJECTIVE: The aims of this study were to describe FH and explore its relationship to quality of life (QOL) in patients with advanced cancer receiving outpatient palliative care (PC). METHODS: Validated questionnaires assessed FH, QOL dimensions, symptom burden, and sociodemographic and clinical characteristics. Descriptive statistics characterized the sample and described FH. Pearson correlation and linear regression assessed relationships between FH and QOL. RESULTS: The average participant (n = 78) age was 56.6 (SD, 12.2) years. Most were female (56.4%), White (50%) or Black (46.2%), and had a range of education, partner statuses, and cancer diagnoses. Median time since cancer diagnosis was 35.5 months (interquartile range, 9-57.3 months). Highest mean symptom burden scores were for pain (2.5 [SD, 1.0]) and fatigue (2.0 [SD, 1.1]), on a 0- to 3-point scale (higher score representing worse symptom burden). The median COST (COmphrehensive Score for financial Toxicity) score was 15.0 (interquartile range, 9.0-23.0). Most (70%) had some (n = 43) or extreme (n = 9) difficulty paying for basic needs. Greater than 28% (n = 21) incurred cancer-related debt. Multivariate models indicated that FH negatively affected role limitations due to physical health ( P = .008), pain ( P = .003), and emotional well-being ( P = .017) QOL dimensions. CONCLUSIONS: Financial hardship, QOL, and symptom burden scores demonstrate need for continued support for and research among patients with advanced cancer. Data support links between FH and important QOL dimensions. Larger, longitudinal studies are needed to understand how FH affects QOL in patients with advanced cancer. IMPLICATIONS FOR PRACTICE: Proactive financial assessment and interventions are needed to support patients with advanced cancer experiencing the cumulative effects of cancer and its treatment.

Pragmatic randomized trial of a pre-visit intervention to improve the quality of telemedicine visits for vulnerable patients living with HIV.

INTRODUCTION: The COVID-19 pandemic has required a shift of many routine primary care visits to telemedicine, potentially widening disparities in care access among vulnerable populations. In a publicly-funded HIV clinic, we aimed to evaluate a pre-visit phone-based planning intervention to address anticipated barriers to telemedicine. METHODS: We conducted a pragmatic randomized controlled trial of patients scheduled for a phone-based HIV primary care visit at the Ward 86 HIV clinic in San Francisco from 15 April to 15 May 2020. Once reached by phone, patients were randomized to either have a structured pre-visit planning intervention to address barriers to an upcoming telemedicine visit versus a standard reminder call. The primary outcome was telemedicine visit attendance. RESULTS: Of 476 scheduled telemedicine visits, 280 patients were reached by a pre-visit call to offer enrollment. Patients were less likely to be reached if virally unsuppressed (odds ratio (OR) 0.11, 95% confidence intervals (CI) 0.03-0.48), CD4 < 200 (OR 0.24, 95% CI 0.07-0.85), or were homeless (OR 0.24, 95% CI 0.07-0.87). There was no difference between intervention and control in scheduled visit attendance (83% v. 78%, OR 1.38, 95% CI 0.67-2.81). CONCLUSIONS: A structured phone-based planning call to address barriers to telemedicine in a public HIV clinic was less likely to reach patients with poorly-controlled HIV and patients experiencing homelessness, suggesting additional interventions may be needed in this population to ensure access to telemedicine-based care. Among patients reachable by phone, telemedicine visit attendance was high and not improved with a structured pre-visit intervention, suggesting that standard reminders may be adequate in this population.

Can We All Speak the Same 'Language' for Our Patients' Sake? Feedback on Interprofessional Communication and Related Resources.

Background: The Australasian Integrative Medicine Association (AIMA) established a working group to develop the AIMA Guiding Principles for Letter Writing and Letter Writing Templates. The guiding principles were developed to promote effective communication between the diverse range of healthcare practitioners (HCPs) that patients choose to consult. Following the development of the Interprofessional Communication (IPC) resources, AIMA undertook a public consultation as part of a quality assurance process to evaluate the relevance and utility of the resource. Aim: This study reports stakeholder feedback on AIMA's draft guiding principles document. It explores stakeholder attitudes towards IPC and HCPs letter-writing, and interest in ongoing continuing professional development (CPD). Methods: A cross-sectional survey involving 1) an online public consultation survey and 2) a paper survey collected following IPC CPD activities. Quantitative data were analysed using Chi square and Fisher-Freeman-Halton Test. Responses to open ended questions were coded and subject to a thematic analysis. Results: The 64 survey participants and 55 CPD participants represented the Australian healthcare sectors and lay community. Most thought IPC is important (n = 112/117; 96%) and the resources were informative (n = 112/119; 94%), understandable (n = 111/119; 93%), and clinically relevant (n = 105/117; 90%). HCP reported wide variations in their frequency of correspondence with other practitioner types, with rates often concerningly low. Key IPC themes identified were the importance of continuity of care, clarity of communication, and professional practice. CPD participants were most interested in further IPC training (p = 0.001). Conclusions: The IPC resources affirm the role of formal communication pathways, such as letters of correspondence to support coordinated, patient-centred and multidisciplinary care. Challenges with letter writing and IPC signal the need for more student and professional education on the subject to promote continuity of patient care and the delivery of high quality, integrative medicine and health care services.

Viral suppression rates in a safety-net HIV clinic in San Francisco destabilized during COVID-19.

: The COVID-19 pandemic is expected to hinder US End the HIV Epidemic goals. We evaluated viral suppression and retention-in-care before and after telemedicine was instituted, in response to shelter-in-place mandates, in a large, urban HIV clinic. The odds of viral nonsuppression were 31% higher postshelter-in-place (95% confidence interval = 1.08-1.53) in spite of stable retention-in-care and visit volume, with disproportionate impact on homeless individuals. Measures to counteract the effect of COVID-19 on HIV outcomes are urgently needed.

Evolution of sexual size dimorphism in the wing musculature of Drosophila.

Male courtship songs in Drosophila are exceedingly diverse across species. While much of this variation is understood to have evolved from changes in the central nervous system, evolutionary transitions in the wing muscles that control the song may have also contributed to song diversity. Here, focusing on a group of four wing muscles that are known to influence courtship song in Drosophila melanogaster, we investigate the evolutionary history of wing muscle anatomy of males and females from 19 Drosophila species. We find that three of the wing muscles have evolved sexual dimorphisms in size multiple independent times, whereas one has remained monomorphic in the phylogeny. These data suggest that evolutionary changes in wing muscle anatomy may have contributed to species variation in sexually dimorphic wing-based behaviors, such as courtship song. Moreover, wing muscles appear to differ in their propensity to evolve size dimorphisms, which may reflect variation in the functional constraints acting upon different wing muscles.

Conventional and Complementary Medicine Health Care Practitioners' Perspectives on Interprofessional Communication: A Qualitative Rapid Review.

Background and Objectives: People have multi-faceted health care needs and consult a diverse range of health care practitioners (HCP) from both the conventional and complementary medicine healthcare sectors. The effective communication between HCP and with patients are obvious requisites to coordinating multidisciplinary care and shared decision making. Further, miscommunication is a leading cause of patient harm and is associated with reduced patient satisfaction, health literacy, treatment compliance and quality of life. In conventional healthcare settings, the differences in professional hierarchy, training, communication styles and culture are recognised communication barriers. Less is known about interprofessional communication (IPC) that includes traditional and complementary medicine (TCM) HCP. This review aims to summarise the experiences and perceptions of conventional and complementary HCP and identify factors that influence IPC. Methods: A qualitative rapid literature review was conducted. Six databases were searched to identify original research and systematic reviews published since 2009 and in English. Excluded were articles reporting original research outside of Australia that did not include TCM-HCP, already cited in a systematic review, or of low quality with a score of less than three on a critical appraisal skills programme (CASP) checklist. A thematic analysis of included studies was used to identify and explore important and recurring themes. Results: From the conducted searches, 18 articles were included, 11 of which reported data on complementary HCP and seven were literature reviews. Four key themes were identified that impact IPC: medical dominance, clarity of HCP roles, a shared vision, and education and training. Conclusion: IPC within and between conventional and complementary HCP is impacted by interrelated factors. A diverse range of initiatives that facilitate interprofessional learning and collaboration are required to facilitate IPC and help overcome medical dominance and interprofessional cultural divides.

Instituting a Low-dose CT-guided Lung Biopsy Protocol.

RATIONALE AND OBJECTIVES: We aimed to evaluate whether implementation of a low-dose computed tomography (CT)-guided lung biopsy protocol, with the support of individual radiologists in the section, would lead to immediate and sustained decreases in radiation dose associated with CT-guided lung biopsies. MATERIALS AND METHODS: A low-dose CT-guided lung biopsy protocol was developed with modifications of kilovoltage peak, milliamperes, and scan coverage. Out of 413 CT-guided lung biopsies evaluated over a 3-year period beginning in 2009, 175 performed with a standard protocol before the development of a low-dose protocol, and 238 performed with a low-dose protocol. The dose-length product (DLP) was recorded for each lung biopsy and retrospectively compared between the two protocols. Individual radiologist level DLPs were also compared before and after the protocol change. RESULTS: The mean biopsy dose decreased by 64.4% with the low-dose protocol (113.8 milligray centimeters versus 319.7 milligray centimeters; P < 0.001). This decrease in radiation dose persisted throughout the entire 18 months evaluated following the protocol change. After the protocol change, each attending radiologist demonstrated a decrease in administered radiation dose. The diagnostic outcome rate and complication rate were unchanged over the interval. CONCLUSIONS: Implementation of a low-dose CT-guided lung biopsy protocol resulted in an immediate reduction in patient radiation dose that was seen with all attending radiologists and persisted for at least 18 months. Such an intervention may be considered at other institutions wishing to reduce patient doses.

Nondiagnostic Computed Tomography-guided Percutaneous Lung Biopsies Are More Likely When Infection Is Suspected.

PURPOSE: The purpose of this study was to assess the incidence of nondiagnostic computed tomography-guided lung biopsy results, stratified by biopsy indication, and determine the final diagnosis in such cases. MATERIALS AND METHODS: Following institutional review board approval, pathology results from CT-guided lung biopsies over a 5-year period at 2 institutions were categorized as diagnostic or nondiagnostic. Each biopsy's indication was categorized as being for a lesion considered likely to be cancer, infection, or uncertain. For all nondiagnostic biopsies, the medical chart was reviewed to determine the final clinical diagnosis. RESULTS: A total of 660 biopsies were evaluated, 139 (21%) of which were nondiagnostic. Of these 139 patients, the final clinical diagnosis was infection in 37%, cancer in 30%, and a benign noninfectious diagnosis in 10%; 23% remained undiagnosed at last available follow-up. Among the patients in whom there was a high pretest suspicion for cancer, 13% were nondiagnostic, 45% of which were cancer and 27% were infection. Among biopsies of lesions with pretest probability for both cancer and infection, 51% were nondiagnostic; on clinical follow-up these were determined to be infection in 34% and cancer in 14%. When there was high pretest suspicion for infection, 73% were nondiagnostic, of which 13% were cancer on clinical follow-up, and 88% were infection. The rate of nondiagnostic biopsies was statistically significantly different (P<0.001) among the 3 groups. CONCLUSIONS: Nondiagnostic biopsies are common and occur most frequently when there is a moderate or high pretest suspicion for infection. Among all nondiagnostic biopsies, regardless of indication, cancer and infection were diagnosed on follow-up in similar proportions.

Nonclotted Blood Patch Technique Reduces Pneumothorax and Chest Tube Placement Rates After Percutaneous Lung Biopsies.

PURPOSE: The aim of this study was to determine whether autologous nonclotted blood patch decreases pneumothorax and chest tube placement rates in computed tomography-guided biopsies of the lung. MATERIALS AND METHODS: Percutaneous computed tomography-guided lung biopsies performed over a period of 6 years were retrospectively reviewed to determine the overall rates of pneumothorax and chest tube placement and rates before and after the autologous nonclotted blood patch procedure was instituted as a departmental policy. The effect of the intervention was only assessed in patients in whom a blood patch could be applied, therefore only when the needle traversed an aerated lung and only when the needle remained in the lung at the end of the study. RESULTS: There was a statistically significant decrease in both the rate of pneumothorax [28% (69/245) vs. 42% (80/189); P=0.002] and chest tube placement [4% (10/245) vs. 16% (30/189); P<0.001] in patients who received nonclotted blood patch versus those who did not. Blood patch was performed in 222/312 (71%) eligible patients after the introduction of the blood patch policy. After policy introduction, there was a decreased rate of pneumothorax, with a rate of 32% (101/312) versus 40% (49/122) (P=0.12) and a statistically significant decrease in departmental chest tube placement rates of 6% (20/312) versus 16% (20/122) (P=0.001). CONCLUSIONS: Nonclotted autologous blood patch for percutaneous lung biopsy resulted in significantly decreased pneumothorax and chest tube placement rates in our patient population.

Students teaching students: evaluation of a "near-peer" teaching experience.

RATIONALE AND OBJECTIVES: Teaching is an important skill. Academic physicians teach on a daily basis, and nearly all physicians occasionally teach colleagues and patients. There are generally few opportunities for medical students to learn teaching skills. We developed a novel "near-peer" teaching program in which fourth-year students cotaught first-year students. MATERIALS AND METHODS: Eighteen fourth-year students enrolled in our institution's primary senior radiology elective learned the basics of ultrasound through a series of lectures and hands-on scanning sessions. Each fourth-year student, paired with a radiology resident or attending, then cotaught a first-year anatomy small group session. After instruction, voluntary surveys were administered to assess the perceived value of the "near-peer" teaching experience. RESULTS: Seventeen of 18 (94%) and 104 of 120 (87%) administered surveys were returned by fourth- and first-year students, respectively. Sixteen (94%) and 99 (95%) of the fourth- and first-year students reported they "enjoyed" or "really enjoyed" the near-peer teaching experience. Fourteen (82%) of the fourth years perceived improvement in their teaching skills and an increase in their knowledge. Only 8 (47%) of the fourth years thought they were "helpful" or "very helpful," though 92 (88%) of the first years identified their fourth-year co-instructors as "helpful" or "very helpful." CONCLUSIONS: We piloted a novel "near-peer" program. Both senior and freshman students enjoyed the experience, and fourth years thought the session was educational for them as well. Although most fourth years did not judge themselves as helpful, first-year students overwhelmingly considered them a useful addition to the session.

Symptom clusters using the Spitzer quality of life index in patients with brain metastases--a reanalysis comparing different statistical methods.

PURPOSE: The purpose of this paper is to determine whether the use of three different statistical methods influences the composition of symptom clusters derived from patients with brain metastases. MATERIALS AND METHODS: The dataset previously compiled from 129 brain metastases patients who completed the Spitzer Quality of Life Index (SQLI) and an additional study-designed 17-item symptom questionnaire was employed in this study. Symptom clusters extracted using principal component analysis in our previous study were compared to clusters determined using hierarchical cluster analysis and exploratory factor analysis. Clusters were identified using the three statistical methods at baseline, and at 1, 2, and 3 months following whole brain radiotherapy. RESULTS: The number and composition of symptom clusters at each time point varied based on the statistical method employed, despite the use of an identical dataset. However, some domains consistently clustered together, such as activity and daily living from the SQLI items. Of the 17 additional symptoms, memory loss, confusion, and trouble concentrating were always present in the same cluster. Nausea and vomiting also occurred in conjunction regardless of the analytical method employed. CONCLUSION: Symptom clusters vary with respect to occurrence, quantity, and composition based on the statistical method utilized to extract them. Further studies should be conducted to determine an ideal statistical method in order to select the optimal method to employ. The use of a single analytical method is essential for consistency and comparison purposes in future symptom cluster research.

Comparing prognostic factors in patients with spinal metastases: a literature review.

For cancer patients with spinal metastases, palliative treatments are directed toward improving the patient's symptoms and quality of life. The expected prognosis of patients plays a large role in guiding treatment decisions, particularly when deciding between surgical management and conservative treatments, such as radiotherapy. This study aims to review the factors that can accurately predict the survival of patients with spinal metastases. The authors conducted a literature search on studies identifying prognostic factors using PubMed (1966­2011), Ovid MEDLINE (1948 to July 2011) and EMBASE (1947­2011) databases. Articles in English were included if they conducted retrospective or prospective analyses on predictors of survival for patients with spinal metastases; articles validating or examining the accuracy of existing scoring systems using prognostic factors were also included. A total of 29 studies were identified. A general consensus of the literature was found with respect to three prognostic factors: the patient's primary cancer site, the extent of the metastases and the general condition or performance score. Further research is recommended to assess the prognostic value of other factors identified by several studies, including age, neurological deficit and previous treatments. For future studies, the authors encourage the development of models capable of inclusion of all patients with spinal metastases.

Symptom clusters in patients with advanced cancer: a reanalysis comparing different statistical methods.

CONTEXT: The clinical relevance of symptom cluster research remains questionable if inconsistencies, partially attributable to the varying statistical analyses used, exist. OBJECTIVES: To investigate whether symptom clusters identified were consistent using three different statistical methods and to observe the temporal pattern of clusters. A secondary objective was to compare symptom clustering in responders and nonresponders to radiotherapy over time. METHODS: Reanalysis of an existing data set compiled from 1296 patients with advanced cancer was performed using hierarchical cluster analysis (HCA) and exploratory factor analysis (EFA) to extract symptom clusters at baseline, 1-, 2-, 4-, 8-, and 12-week follow-up time points. Findings were compared with results obtained using principal component analysis (PCA) in our previously published study. The original sample was further divided into two subgroups: responders and nonresponders. The symptom clusters present in each subgroup were examined using PCA, HCA, and EFA at the same time points as mentioned above. RESULTS: The symptom cluster findings of HCA and PCA correlated more frequently with each other than either did with the results of EFA. Complete consensus in all three statistical methods was never reached at any assessment time point in the present study. Increasingly diverging patterns of symptom cluster development over time were observed in the responder vs. nonresponder subgroups. Symptom pairs comprising anxiety and depression or fatigue and drowsiness consistently presented in the same cluster despite the shifting of other symptoms in the cluster over time. CONCLUSION: The presence and composition of symptom clusters identified varied depending on which statistical analysis method was used. A key step in achieving consistency in symptom cluster research involves the utilization of a common analytical method.

Comparison of the EORTC QLQ-BM22 and the FACT-BP for assessment of quality of life in cancer patients with bone metastases.

INTRODUCTION: Maintenance or improvement in quality of life (QoL) is the main goal of palliative treatments for bone metastases. Validated and comprehensive tools assessing QoL for specific patient subgroups are required in order to accurately assess and make informed decisions about palliative treatments. The European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire for patients with bone metastases (QLQ-BM22) and the Functional Assessment of Cancer Therapy Quality of Life Measurement in patients with bone pain (FACT-BP) are the only two palliative QoL tools available that have been validated for use specifically for bone metastases patients. The purpose of this study was to compare the development and characteristics of these two tools, as well as their current use in palliative research. METHODS: Studies detailing the development process for the QLQ-BM22 and the FACT-BP were identified. A comparison between both questionnaires in terms of development, characteristics, validation and use was conducted. RESULTS: The QLQ-BM22 was developed with collaboration from patients, healthcare professionals and review of the literature, whereas the FACT-BP was created strictly through interviews with patients. Scoring, organization, response options and item format are different; however, recall period is the same. Both tools showed good internal consistency and construct validity. The QLQ-BM22 showed good test-retest reliability, while this has not been tested with the FACT-BP. The QLQ-BM22 has been internationally validated among a large sample of patients undergoing a variety of treatments, demonstrating its ability of detect meaningful QoL changes in diverse bone metastases populations. On the other hand, the FACT-BP demonstrated high internal consistency at all assessments, indicating that it may be utilized as a stand-alone measure of bone pain. CONCLUSION: Both the QLQ-BM22 and FACT-BP are designed for assessment of QoL issues specific to cancer patients with bone metastases. Each instrument has unique strengths and weaknesses and choice between these tools is dependent on the investigator and study needs.

Projected referral to other healthcare services in an outpatient palliative radiotherapy clinic.

AIMS: To investigate the projected referral to other healthcare services in an outpatient palliative radiotherapy clinic. METHODS: Patients referred for palliative radiotherapy from 1999 to 2002 inclusive and 2007 to 2009 inclusive were evaluated. The Edmonton Symptom Assessment System, which assesses nine symptoms, was completed by 1439 patients prior to radiotherapy consultation. The numeric scale was converted into a categorical scale of none, mild, moderate and severe. Patients with moderate-to-severe symptoms were identified as potential referrals to other healthcare services. RESULTS: Tiredness (66%), poor sense of wellbeing (64%), pain (57%) and poor appetite (52%) had the most patients scoring in the moderate-to-severe range. Moderate-to-severe anxiety and depression occurred in 39 and 30% of patients, respectively, reflecting the percentage of projected referrals for symptom and/or psychosocial management. CONCLUSION: Cancer symptoms are complex, and a multidisciplinary and collaborative approach should be taken to provide timely management and maintain patients' quality of life.

Symptom clusters in patients with bone metastases--a reanalysis comparing different statistical methods.

PURPOSE: The aims of this study were to determine whether symptom clusters in patients with bone metastases varied when derived using three different statistical methods and to compare the presentation of symptom clusters over time in responders and nonresponders to palliative radiation treatment (RT). METHODS: Secondary analysis of a previously reported data set compiled using the brief pain inventory from 348 patients with bone metastases. Hierarchical cluster analysis (HCA) and exploratory factor analysis (EFA) were performed to identify symptom clusters at baseline, 1, 2, and 3 months following radiation treatment. Clusters derived were compared with the findings obtained using principal component analysis (PCA) in our previous study. The total patient sample was further separated into two subgroups: responders and nonresponders to RT. PCA, HCA, and EFA identified symptom clusters experienced by each subgroup at the same time points as before. RESULTS: Little correlation was observed in the symptom cluster findings of PCA, EFA, and HCA in the total patient sample. Absolute consensus among all three statistical methods was never reached at any assessment time point in the present study. Varying patterns of symptom cluster presentation over time were observed in the responders versus nonresponders subgroups regardless of the analytical method employed. A core cluster of symptoms composed of worst pain, general activity, walking ability, normal work, and enjoyment of life frequently presented in the same cluster. CONCLUSION: The presence and composition of symptom clusters derived varied depending on which statistical analysis method was employed. A key step in attaining consistency in symptom cluster research necessitates the utilization of a common method.

Fatigue in advanced cancer patients attending an outpatient palliative radiotherapy clinic as screened by the Edmonton Symptom Assessment System.

INTRODUCTION: Advanced cancer patients present with a variety of physical and psychological symptoms. Fatigue is one such symptom which reduces overall quality of life and is difficult to manage. The purpose of this study was to report the presence, severity, and correlating factors of fatigue in advanced cancer patients attending an outpatient palliative radiotherapy clinic. MATERIALS/METHODS: Patients referred to the Rapid Response Radiotherapy Program between January 1999 and October 2009 completed the Edmonton Symptom Assessment System (ESAS) prior to consultation. Demographic information including age, Karnofsky Performance Status (KPS), gender, and primary cancer sites were collected. Ordinal logistic regression analysis was conducted to determine relationships between demographic information, other ESAS items, and levels of fatigue. Multivariate ordinal logistic regression analysis was used to determine the most significant predictors of fatigue. A p value of <0.05 was considered statistically significant. RESULTS: A total of 1,397 patients completed the ESAS prior to consultation. Median age was 68 years (range, 21-95), median KPS was 60 (range, 10-100), and slightly more males completed the ESAS (53.0%). Common primary cancers were of the lung (35.8%), breast (20.7%), and prostate (17.7%). Only 179 (12.8%) patients reported no fatigue; the majority of patients reported moderate (31.8%) or severe (34.4%) fatigue. A low KPS (p < 0.0001), being female (p = 0.0056), or being referred for bone metastases (p = 0.0185) significantly correlated with higher levels of fatigue. Patients with a genitourinary primary cancer (p = 0.0078) and/or referred for malignant spinal cord compression (p = 0.0004) reported less fatigue. All other ESAS items were significantly related to fatigue. The most significant predictors of fatigue were pain (p < 0.0001, odds ratio (OR) = 1.07), nausea (p = 0.0010, OR = 1.10), depression (p < 0.0001, OR = 1.10), drowsiness (p < 0.0001, OR = 1.33), dyspnea (p = 0.0003, OR = 1.08), and overall well-being (p < 0.0001, OR = 1.19). CONCLUSION: Moderate fatigue was reported in over 66% of our advanced cancer patients prior to radiotherapy. Since radiotherapy inherently causes fatigue, proactive and multidisciplinary management is required for these patients. Similar rates of fatigue severity, in lengthier, fatigue-specific tools, suggest that the ESAS may be a good tool for screening the advanced cancer population.