Patient navigation across the cancer care continuum: An overview of systematic reviews and emerging literature

Patient navigation is a strategy for overcoming barriers to reduce disparities and to improve access and outcomes. The aim of this umbrella review was to identify, critically appraise, synthesize, and present the best available evidence to inform policy and planning regarding patient navigation across the cancer continuum. Systematic reviews examining navigation in cancer care were identified in the Cochrane Central Register of Controlled Trials (CENTRAL), PubMed, Embase, Cumulative Index of Nursing and Allied Health (CINAHL), Epistemonikos, and Prospective Register of Systematic Reviews (PROSPERO) databases and in the gray literature from January 1, 2012, to April 19, 2022. Data were screened, extracted, and appraised independently by two authors. The JBI Critical Appraisal Checklist for Systematic Review and Research Syntheses was used for quality appraisal. Emerging literature up to May 25, 2022, was also explored to capture primary research published beyond the coverage of included systematic reviews. Of the 2062 unique records identified, 61 systematic reviews were included. Fifty-four reviews were quantitative or mixed-methods reviews, reporting on the effectiveness of cancer patient navigation, including 12 reviews reporting costs or cost-effectiveness outcomes. Seven qualitative reviews explored navigation needs, barriers, and experiences. In addition, 53 primary studies published since 2021 were included. Patient navigation is effective in improving participation in cancer screening and reducing the time from screening to diagnosis and from diagnosis to treatment initiation. Emerging evidence suggests that patient navigation improves quality of life and patient satisfaction with care in the survivorship phase and reduces hospital readmission in the active treatment and survivorship care phases. Palliative care data were extremely limited. Economic evaluations from the United States suggest the potential cost-effectiveness of navigation in screening programs.     

Synthesis and bacterial mutagenicity of the cyclopenta oxides of the four cyclopenta-fused of isomers of benzanthracene

Many polycyclic aromatic hydrocarbons containing peripherallyfused cyclopenta rings are believed to be activated primarilyby epoxidation of the cyclopenta ring. The cyclopenta epoxidesof a series of four cyclopenta benzanthracene derivatives, benz[e]aceanthrylene-5,6-oxide,benz[j]ace-anthrylene-1,2-oxide, benz(l)anthrylene-1,2-oxideand benz[k]acephenaceanthrylene-4,5-oxide were synthesized fromtheir parent hydrocarbons by formation of the bromohydrin followedby dehydrobromination, and characterized by u.v. – vis,and ¹H n.m.r. spectroscopy and mass spectrometry. The mutagenicityof these compounds was investigated in the Ames plate incorporationassay with Salmonella typhimurium strain TA98. All the oxideswere active without exogenous metabolic activation (170–320His⁺ revertants per nanomole) and also toxic above 0.5 µg/plate.Addition of S9 protein did not increase, and generally decreased,the mutagenicity of the oxides, while toxicity was largely unchanged.These results are consistent with the postulated role of cyclopentaoxides as major contributors to the mutagenicity of the parentcompounds in the Ames assay.     

Subakute Verlegung der Atemwege infolge eines retropharyngealen H?matoms nach Halstrauma

Mechanical airway obstruction secondary to retropharyngeal bleeding is rare. In most cases such a complication is described after head and neck trauma. Complicating factors include anticoagulant therapy, tumour, aneurysm, infection or major cervical spine injury. A precise initial diagnosis is necessary to avoid a life-threatening situation. Lateral X-ray and computed tomography is essential for safe management. Treatment depends upon size of the haematoma as well as the clinical course of the patient. Smaller haematomas may be observed. Lager haematomas and those that fail to reabsorb should undergo drainage.      

Genome-Wide Association Analysis of Longitudinal Bone Mineral Content Data From the Iowa Bone Development Study

The foundation for osteoporosis risk is, in part, established during childhood, adolescence, and young adulthood, all periods of development when bone mass is acquired rapidly. The relative quantity of bone mass accrued is influenced by both lifestyle and genetic factors, although the genetic component is not yet well understood. The purpose of this study was to use a genome-wide association (GWA) analysis to discover single nucleotide polymorphisms (SNPs) associated with: (1) the sex-specific hip bone mineral content at approximately the age of 19 when the amount of bone accrued is near its peak; and (2) the sex-specific rate of hip bone mineral content accrual during the adolescent growth spurt. The Iowa Bone Development Study, a longitudinal cohort study exploring bone health in children, adolescents, and young adults was the source of data. From this cohort, n = 364 (190 females, 174 males) participants were included in GWA analyses to address (1) and n = 258 participants (125 females and 133 males) were included in GWA analyses to address (2). Twenty SNPS were detected having p < 1.0 × 10^?5. Of most biologic relevance were 2 suggestive SNPs (rs2051756 and rs2866908) detected in an intron of the DKK2 gene through the GWA analysis that explored peak bone mass in females.     

医疗机构药品管理现状

本文对医疗机构、计划生育技术服务机构使用药品的现状与存在问题进行了分析，提出了管理对策，建议实行使用药品法律许可制度。     

Guide to designing, conducting, publishing and communicating results of clinical studies involving probiotic applications in human participants

The heterogeneity of human clinical trials to assess the effectiveness of probiotics presents challenges regarding interpretation and comparison. Evidence obtained from clinical trials among a population with a disease or specific risk factors may not be generalizable to healthy individuals. The evaluation of interventions in healthy persons requires careful selection of outcomes due to the absence of health indicators and the low incidence of preventable conditions. Given the tremendous resources invested in such trials, development of consistent approaches to assessing the effectiveness of probiotics would be beneficial. Furthermore, the reporting, presentation and communication of results may also affect the validity of the scientific evidence obtained from a trial. This review outlines the challenges associated with the design, implementation, data analysis and interpretation of clinical trials in humans involving probiotics. Best practices related to their design are offered along with recommendations for enhanced collaboration to advance research in this emerging field.     

System Strategies for Colorectal Cancer Screening at Federally Qualified Health Centers

Objectives. We assessed the protocols and system processes for colorectal cancer (CRC) screening at federally qualified health centers (FQHCs) in 4 midwestern states.Methods. We identified 49 FQHCs in 4 states. In January 2013, we mailed their medical directors a 49-item questionnaire about policies on CRC screening, use of electronic medical records, types of CRC screening recommended, clinic tracking systems, referrals for colonoscopy, and barriers to providing CRC.Results. Forty-four questionnaires (90%) were returned. Thirty-three of the respondents (75%) estimated the proportion of their patients up-to-date with CRC screening, with a mean of 35%. One major barrier to screening was inability to provide colonoscopy for patients with a positive fecal occult blood test (59%). The correlation of system strategies and estimated percentage of patients up-to-date with CRC screening was 0.43 (P = .01).Conclusions. CRC system strategies were associated with higher CRC screening rates. Implementing system strategies for CRC screening takes time and effort and is important to maintain, to help prevent, or to cure many cases of CRC, the second leading cause of cancer in the United States.Federally qualified health centers (FQHCs) attempt to provide comprehensive, quality primary health care services to medically underserved communities and vulnerable populations. Approximately 1198 centers receive operating grants from the Public Health Service Act and thus qualify for reimbursement from Medicare and Medicaid.1 FQHCs served 21 million patients in 2012, of whom 36% were uninsured and 92% were living below the 200% poverty level.1 One of the services provided by FQHCs is colorectal cancer (CRC) screening through stool testing for occult blood.2 This service is covered under the Medicare FQHC benefit for persons aged 65 years and older and for those who qualify for the Medicaid program.3CRC is the second leading cause of cancer deaths in the United States.4 Only 63% of US adults report being up-to-date with CRC screening.5 CRC is a disease that is largely preventable; colonoscopy, through detection of early tumors and removal of precancerous polyps, could prevent 65% of CRC cases.6,7 Several national organizations have guidelines for CRC screening.8,9 National guidelines promote any of several tests for CRC screening: tests that pick up occult bleeding and endoscopic tests that visualize all or part of the colon.8–10Clinical tests to directly visualize colorectal cancer and precancerous polyps are colonoscopy, flexible sigmoidoscopy, double-contrast barium enema, and computed tomographic colonography (virtual colonoscopy). Fecal occult blood tests (FOBTs), which detect blood in the stool that is not visible and that indicates possible cancer, are the guaiac-based test and the fecal immunochemical test (FIT). FOBTs are recommended annually, and colonoscopy is recommended every 10 years, if no polyps are found.8–10 FOBTs are much less expensive than colonoscopy and are often preferred by patients. In many safety net settings, FOBTs are the initial option for patients, because of the prohibitive cost and limited availability of colonoscopy.11,12Through an infrastructure grant to enhance community-based cancer control in Iowa, we visited 4 FQHCs in Iowa and learned that FOBTs were available for use, but were for the most part not given to patients to avoid having to arrange and pay for a follow-up colonoscopy if FOBT results were positive. One FQHC director explained that the annual budget included a fund for extra tests that might be needed for any medical reason, and once these funds were exhausted, no more funding was available in that year. Thus, CRC screening was not a top priority, because of many other competing health care needs.To enhance CRC screening, system strategies are appropriate. A system strategy is a group of interrelated items that are part of a plan of action to accomplish a specific goal, such as improving CRC screening. Many different system strategies have been identified for improving CRC screening, such as physician recommendation,13,14 mailed patient reminders,15–17 and electronic medical record (EMR) physician reminders.18,19Patients at greatest risk for not receiving CRC screening are racial and ethnic minorities, Asians and Hispanics, and individuals who lack a usual source of health care or health insurance.20 Underuse of CRC screening is frequently associated with socioeconomic disadvantage21 and is associated with higher late-stage CRC rates.22 Because many of our nation’s most disadvantaged individuals make use of FQHCs, we assessed the protocols and system processes in place for CRC screening at FQHCs in 4 midwestern states and estimated rates of CRC screening in these FQHCs.