Recent development on the use of sublingual immunotherapy tablets for allergic rhinitis.

OBJECTIVE: Allergic rhinitis (AR) is an immunoglobulin (Ig) E-mediated inflammatory condition that causes sneezing, nasal congestion, rhinorrhea, and nasal itch. Although subcutaneous immunotherapy for the treatment of AR has been in use and well established as a treatment modality, sublingual immunotherapy (SLIT) is increasingly considered to be the safer and more convenient alternative. Thus, the objective of this review is to describe recent findings pertaining to the use of SLIT tablets (SLIT-T) for AR. DATA SOURCES: A database search (PubMed.gov) for articles published between January 1, 2017, and February 9, 2021, was conducted using the following key words: "allergic rhinitis," AND-ed "sublingual immunotherapy." Included were randomized placebo-controlled trials. Other experimental design studies were excluded. STUDY SELECTIONS: A total of 11 randomized placebo-controlled trials were selected for full-text review and included in the analysis. All studies investigated the use of SLIT on patients with seasonal AR (4 tree pollen, 1 grass pollen, and 1 Japanese cedar) or perennial AR (3 house dust mite). RESULTS: Our review of 7 recently published randomized placebo-controlled trials with 2348 subjects receiving SLIT reported increased efficacy, safety, supportive immunologic parameters (IgE and IgG4 pre- and posttreatment levels), and improved quality of life. All studies excluded subjects with overlapping seasonal or perennial allergens, a history of moderate-to-severe uncontrolled asthma, or reduced lung function. CONCLUSION: Our review highlights that SLIT is a safe and effective treatment that considerably reduces symptoms and medication requirements in AR and improves quality of life.

Experiences of integrating community volunteers as extensions of the primary care team to help support older adults at home: a qualitative study.

BACKGROUND: Increasing the integration of community volunteers into primary health care delivery has the potential to improve person-focused, coordinated care, yet the use of volunteers in primary care is largely unexplored. Health Teams Advancing Patient Experience: Strengthening Quality (Health TAPESTRY) is a multi-component intervention involving trained community volunteers functioning as extensions of primary care teams, supporting care based on older adults' health goals and needs. This study aimed to gain an understanding of volunteer experiences within the program and client and health care provider perspectives on the volunteer role. METHODS: This study used a qualitative descriptive approach embedded in a pragmatic randomized controlled trial. Participants included Health TAPESTRY volunteers, health care providers, volunteer coordinator, and program clients, all connected to two primary care practice sites in a large urban setting in Ontario, Canada. Data collection included semi-structured focus groups and interviews with all participants, and the completion of a measure of attitudes toward older adults and self-efficacy for volunteers. Qualitative data were inductively coded and analyzed using a constant comparative approach. Quantitative data were summarized using descriptive statistics. RESULTS: Overall, 30 volunteers and 64 other participants (clients, providers, volunteer coordinator) were included. Themes included: 1. Volunteer training: "An investment in volunteers"; 2. Intergenerational volunteer pairing: "The best of both worlds"; 3. Understanding the volunteer role and its scope: "Lay people involved in care"; 4. Volunteers as extensions of primary care teams: "Being the eyes where they live"; 5. The disconnect between volunteers and the clinical team: "Is something being done?"; 6. "Learning… all the time": Impacts on volunteers; and 7. Clients' acceptance of volunteers. CONCLUSIONS: This study showed that it is possible to integrate community volunteers into the primary care setting, adding human connections to deepen the primary care team's understanding of their patients. Program implementation suggestions that emerged included: using role play in training, making volunteer role boundaries and specifications clear, and making efforts to connect volunteers and the primary care team they are supporting. This exploration of stakeholder voices has the potential to help improve volunteer program uptake and acceptability, as well as volunteer recruitment, retention, and training. TRIAL REGISTRATION: For RCT: https://clinicaltrials.gov/ct2/show/NCT02283723, November 5, 2014.

Health TAPESTRY: co-designing interprofessional primary care programs for older adults using the persona-scenario method.

BACKGROUND: Working with patients and health care providers to co-design health interventions is gaining global prominence. While co-design of interventions is important for all patients, it is particularly important for older adults who often experience multiple and complex chronic conditions. Persona-scenarios have been used by designers of technology applications. The purpose of this paper is to explore how a modified approach to the persona-scenario method was used to co-design a complex primary health care intervention (Health TAPESTRY) by and for older adults and providers and the value added of this approach. METHODS: The persona-scenario method involved patient and clinician participants from two academically-linked primary care practices. Local prospective volunteers and community service providers (e.g., home care services, support services) were also recruited. Persona-scenario workshops were facilitated by researchers experienced in qualitative methods. Working mostly in homogenous pairs, participants created a fictitious but authentic persona that represented people like themselves. Core components of the Health TAPESTRY intervention were described. Then, participants created a story (scenario) involving their persona and an aspect of the proposed Health TAPESTRY program (e.g., volunteer roles). Two stages of analysis involved descriptive identification of themes, followed by an interpretive phase to extract possible actions and products related to ideas in each theme. RESULTS: Fourteen persona-scenario workshops were held involving patients (n = 15), healthcare providers/community care providers (n = 29), community service providers (n = 12), and volunteers (n = 14). Fifty themes emerged under four Health TAPESTRY components and a fifth category - patient. Eight cross cutting themes highlighted areas integral to the intervention. In total, 414 actions were identified and 406 products were extracted under the themes, of which 44.8% of the products (n = 182) were novel. The remaining 224 had been considered by the research team. CONCLUSIONS: The persona-scenario method drew out feasible novel ideas from stakeholders, which expanded on the research team's original ideas and highlighted interactions among components and stakeholder groups. Many ideas were integrated into the Health TAPESTRY program's design and implementation. Persona-scenario method added significant value worthy of the added time it required. This method presents a promising alternative to active engagement of multiple stakeholders in the co-design of complex interventions.

Recognition and Management of Food Allergy and Anaphylaxis in the School and Community Setting.

Given the increasing prevalence of food allergy, schools and food service establishments must have procedures in place to accommodate those with the condition. Training staff on allergy management has been shown to improve knowledge and skills, although more research is needed to better understand its benefits. Furthermore, although there are challenges involved in maintaining unassigned stock epinephrine programs, they have the potential to reduce morbidity and mortality associated with anaphylaxis by improving access to potentially life-saving medication. Finally, food bans in schools may not be an effective part of food allergy management, and other measures should be considered instead.

Peanut Oral Immunotherapy With or Without H1 and H2 Antihistamine Premedication for Peanut Allergy (PISCES): A Placebo-Controlled Randomized Clinical Trial.

BACKGROUND: Current forms of peanut oral immunotherapy (OIT) are associated with side effects, and there is a lack of evidence addressing how to mitigate them. OBJECTIVE: To determine whether premedication with desloratadine and ranitidine results in fewer side effects during peanut OIT/desensitization. METHODS: A total of 43 patients with peanut allergy (mean age, 7.6 ± 2.1 years, 37% females, 63% males, baseline eliciting dose, 33 ± 26 mg) were randomized to OIT with or without concomitant H1 and H2 antihistamine blockade, or double-placebo. Patients, study staff/investigators, and statisticians were blinded. The primary outcomes were the frequency and severity of OIT-induced adverse events. The secondary outcomes were quality of life and eliciting doses to blinded food challenge. RESULTS: Adverse reactions occurred more in the OIT groups compared with the double-placebo group (OIT with antihistamines vs double-placebo hazard ratio, 3.75 [95% CI, 2.79-4.72]; OIT with placebo antihistamines vs double-placebo, hazard ratio, 4.62 [95% CI, 3.61-5.62]). Patients given antihistamines cotreatment with OIT had a similar risk of adverse events compared with those who did not use antihistamines with OIT (hazard ratio, 1.23 [95% CI, 0.49-1.97]). OIT with and without antihistamines accelerated the incidence rate of adverse events compared with double-placebo (4.8 and 6.4 events per patient vs 3.5 per patient, incidence rate ratio, 2.49 [95% CI, 1.36-4.56] and 2.04 [95% CI, 1.01-4.15], respectively). Antihistamines pretreatment modestly reduced the frequency of moderate to severe adverse reactions among OIT-treated groups (1.9 per patient vs 4.2 per patient, incidence rate ratio, 0.46 [95% CI, 0.24-0.89]), primarily urticaria (0.6 vs 2.1 per patient) followed by abdominal pain (2.6 vs 4.2 per patient), but increased neuropsychiatric adverse events (primarily tiredness and sedation, 2.3 vs 0.7 per patient). Eliciting doses after treatment were similar in all groups. Quality of life improved similarly regardless of treatment with peanut OIT or placebo OIT. CONCLUSIONS: Peanut OIT with antihistamines modestly reduce the skin and gastrointestinal components of the high incidence of adverse reactions during OIT, and there are no clear differences in improvement in quality of life whether treated with OIT, OIT with antihistamines, or placebo OIT despite OIT being effective in inducing desensitization. Safer food allergy treatment approaches that importantly improve quality of life need to be proved in future robust randomized trials.

Development of the Hereditary Angioedema Rapid Triage Tool.

BACKGROUND: Patients with hereditary angioedema (HAE) present to the emergency department (ED), where their symptoms are often incorrectly attributed to common allergic and gastrointestinal conditions, resulting in major delays in diagnosis and treatment. OBJECTIVE: To develop a rapid triage HAE (Hereditary AngioEdema Rapid Triage [HAE-RT]) tool for ED settings. METHODS: A mixed-methods approach was used in 3 phases: Phase 1: A literature review on the current management of patients with HAE in the ED. Phase 2: A Delphi study with HAE specialists (N = 9) and Patient Advocacy Group Members (N = 3) to reach consensus on the predictor variables (PVs) to be included in the HAE-RT tool. Phase 3: A retrospective chart review to assess the performance of the PVs for HAE. RESULTS: The literature review informed the final list of PVs included in the HAE-RT prototype. Nine experts participated in the Delphi study. Of 8 identified HAE-specific PVs, 3 reached consensus: (1) absence of urticaria, (2) recurrent abdominal pain/swelling, and (3) lack of response to allergic-directed therapy. The retrospective study included 107 patients (N = 66 with HAE; N = 41 non-HAE). Patients with HAE were more likely to have a family history of HAE (71%; P < .0001), previous recurrent angioedema (96%; P < .002), and previous recurrent abdominal pain (77%; P < .0001), and only 6% responded to allergy treatments (P < .0001). The HAE-RT tool had 98% sensitivity and specificity. CONCLUSIONS: Expert consensus led to the identification and prioritization of variables that when incorporated into an HAE-RT tool were associated with a high level of sensitivity and specificity when applied to known patients.

Food allergy and anaphylaxis.

Anaphylaxis is a severe and potentially life-threatening allergic reaction. There are numerous potential causes, with food allergy being the leading cause in children and the focus of this review. Most reactions involve an IgE-mediated mechanism, although non-IgE-mediated and nonimmunologic reactions can occur. Various cofactors to be discussed can place certain individuals at an increased risk of severe or fatal anaphylaxis. The clinical manifestations of anaphylaxis are broad and may involve multiple body systems. Diagnosis of food-related anaphylaxis is primarily based on signs and symptoms and supported, wherever possible, by identification and confirmation of a culprit food allergen. First-line treatment of anaphylaxis is intramuscular administration of epinephrine. Long-term management is generally focused on strict allergen avoidance and more recently on food desensitization using immunotherapy. This review provides an overview of anaphylaxis with a specific focus on food allergy.

A Volunteer Program to Connect Primary Care and the Home to Support the Health of Older Adults: A Community Case Study.

Primary care providers are critical in providing and optimizing health care to an aging population. This paper describes the volunteer component of a program (Health TAPESTRY) which aims to encourage the delivery of effective primary health care in novel and proactive ways. As part of the program, volunteers visited older adults in their homes and entered information regarding health risks, needs, and goals into an electronic application on a tablet computer. A total of 657 home visits were conducted by 98 volunteers, with 22.45% of volunteers completing at least 20 home visits over the course of the program. Information was summarized in a report and electronically sent to the health care team via clients' electronic medical records. The report was reviewed by the interprofessional team who then plan ongoing care. Volunteer recruitment, screening, training, retention, and roles are described. This paper highlights the potential role of a volunteer in a unique connection between primary care providers and older adult patients in their homes.

Feasibility study of goal setting discussions between older adults and volunteers facilitated by an eHealth application: development of the Health TAPESTRY approach.

BACKGROUND: In keeping with the changing needs of the Canadian population, primary care systems need to become more person-focused in providing quality care to older adults. As part of Health TAPESTRY, a complex intervention to strengthen primary care for older adults, a goal setting exercise was developed and tested in an initial feasibility study, intended to foster collaboration between patients and providers. METHODS: Participants-clinic clients-were recruited from the McMaster Family Health Team in Hamilton, Ontario. Five participants took part in the goal setting feasibility study phase I, which tested the functionality of a technology-enabled goal setting exercise between older adults and volunteers. Based on observations and feedback from volunteers, interprofessional team members, and older adults, the exercise was refined to include a guided survey and goals report. The goal setting survey is a list of probing questions designed based on SMART (specific, measurable, attainable, relevant, timely) goal setting strategies and goal attainment scaling (GAS). This was used in phase II, carried out with 16 participants, where the feasibility of goal setting and goal attainment with support from volunteers and interprofessional teams was tested. Volunteers carried out the goal setting survey via a tablet computer, a report of client goals was generated and sent to interprofessional teams, and client goals were discussed during clinic huddles. At 6 months of follow-up, clients self-evaluated their progress using GAS. RESULTS AND DISCUSSION: The goal setting exercise in phase I took an average of 24:45 (SD 11:42) minutes and yielded a diverse set of life and health goals. Goals identified by older adults were primarily focused on the maintenance of a certain level of activity or health state. Phase I work resulted in important changes to the goal setting process (e.g., asking about goal setting later in conversation, changing wording of questions) and development of a summary report of goals sent to the interprofessional team. In phase II, 44 goals were set by 16 participants during an average 7:23 (SD 4:26) minute discussion. Of these goals, 43.9% were characterized as health goals while 63.4% were characterized as life goals. Under the umbrella of Life goals, productivity featured most prominently at 22.9% of all goals. Goal attainment was not measured in phase I. In phase II, clients had an average weighted goal attainment score of 51.5. Considering client preferences for one goal over another, 68.8% of clients, on average, at least partially achieved the goals they had set. CONCLUSION: Goal setting as part of the Health TAPESTRY approach was feasible and provided interprofessional teams with client narratives that helped improve care management for older adults. The overall intervention-including the refined goal setting component-is being scaled and evaluated in a pragmatic randomized controlled trial.

Epinephrine Autoinjectors: New Data, New Problems.

Epinephrine is the first-line treatment for anaphylaxis. Despite this, there have been identified gaps in the management of anaphylaxis including infrequent or delayed use of epinephrine for acute allergic reactions, as well as inadequate epinephrine autoinjector (EAI) training, and prescription rates of these devices for patients at risk. This paper reviews new data, and new problems in recently published literature on EAIs. A database search was conducted for publications between January 2015 and February 2017 using keywords related to EAIs including their functionality and features, carriage, prescription rates, barriers, and side effects. Eligibility criteria included patients at risk for anaphylaxis, caregivers, and health care professionals. Experimental studies and observational studies were included. Of 1,737 potentially relevant articles, 19 were used for analysis. These articles addressed specific aspects of an EAI, including (1) information on features and functionality; (2) prescriptions; (3) training on their use; and (4) carriage and use at the time of reaction by patients, schools, camps, emergency departments, and paramedics. Our review highlights that existing gaps in anaphylaxis management remain unaddressed. Patient needs are largely unmet, and very few studies are being designed to clarify and instill best practice, and to determine how to increase adherence to existing anaphylaxis guidelines through integrated knowledge translation strategies.