Development and implementation of ambulatory care pharmacy services at an internal medicine clinic

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PURPOSE

This report describes the step-by-step process that led to expansion of ambulatory care pharmacy services at a newly established internal medicine clinic within a patient-centered medical home in North Carolina.

SUMMARY

Implementation of clinical pharmacist services at the clinic was led by a postgraduate year 2 (PGY2) pharmacy resident and guided by the 9 steps described in the book Building a Successful Ambulatory Care Practice: A Complete Guide for Pharmacists. After a needs assessment and review of the demographics and insurance status of the clinic's target population, it was determined that pharmacist services would focus on quality measures including diabetes nephropathy screening, diabetes eye examination, blood glucose control in diabetes, discharge medication reconciliation, annual wellness visits, and medication adherence in diabetes, hypercholesterolemia, and hypertension. Clinic appointments were conducted under 3 models: a pharmacist-physician covisit model, a "floor model" of pharmacist consultation on drug information or medication management issues during medical resident sign-out sessions with supervising physicians (medical residents could also see patients along with the pharmacist at a covisit appointment), and a covisit model of stacked physician and pharmacist appointments. The pharmacist's services were expanded from 2 half-day clinic sessions per week initially to 5 or 6 half-day clinic sessions by the end of the residency year.

CONCLUSION

By the fourth quarter of the first PGY2 residency year in which ambulatory care pharmacy services were provided in the clinic, the clinical and financial impact of those services justified the addition of a second full-time pharmacist to the clinic team.

Access to on-campus contraception on college and university campuses in North Carolina

BACKGROUND AND OBJECTIVE

Unintended pregnancies occur more frequently in college students and negatively affect health outcomes and educational attainment. This study examined access to on-campus contraceptives at all 4-year colleges and universities in North Carolina (NC).

METHODS

This institutional review board-exempt study evaluated availability of on-campus contraceptives including condoms; hormonal contraceptives including pills, patches, and vaginal rings; medroxyprogesterone injections; implants; intrauterine devices; and emergency contraception via website review. Institutions were stratified by characteristics including size, location, type (e.g., public, private, religious affiliation, historically black colleges and universities, women's colleges), and presence of a student health pharmacy. Comparisons were made using chi-square test or Fisher's exact test.

RESULTS

Fifty-four 4-year colleges and universities were identified. A plurality or the majority of schools were considered small (41%) and urban (48%) and had a religious affiliation (61%). Thirty-three percent of colleges and universities had an on-campus pharmacy. The most frequent contraceptives offered were condoms (43%), oral contraceptives (33%), and medroxyprogesterone injections (22%). Emergency contraception was available at approximately one-third of colleges and universities. Six percent of institutions provided a full range of contraceptive methods. Contraceptives were offered more frequently at large, public, urban institutions, whereas religious institutions and smaller institutions were less likely to offer contraceptives.

CONCLUSION

Access to on-campus contraception for college students in NC is lacking, and the vast majority of institutions did not provide a full range of contraceptives. Policy measures, such as enhancing reproductive health services at student health centers or increasing contraception availability directly through pharmacies, are needed to improve access for college students.

Survey of pharmacy students to assess attitudes toward a career in older adult care

INTRODUCTION

In the United States, the older adult population is growing faster than the geriatrics-trained healthcare workforce. The primary objective of this study was to determine the top factors that increase or decrease pharmacy student interest in seeking a career in geriatrics.

METHODS

A 23-item survey was disseminated to 611 first- through fourth-year pharmacy students. Participants were recruited from two public schools of pharmacy in the United States from February through September 2022. Surveys were administered during class or distributed via email and websites for required courses. Participation was voluntary, and responses were anonymous. Descriptive statistics, independent-samples t-tests, Fisher's exact test, and analysis of variance were used for analysis.

RESULTS

A total of 210 responses were received. Respondents were evenly split between somewhat or extremely interested and somewhat or extremely disinterested in geriatrics. Among those interested, the top factors driving interest were past positive experiences with older adults, interest in deprescribing, and perceived need for geriatrics-trained providers. Among those not interested, the top three factors discouraging interest were emotional impact of death and end-of-life care, disinterest in geriatric syndromes, and perception of inadequate exposure to geriatrics within the curriculum.

CONCLUSIONS

In order to ensure an adequately trained geriatrics workforce for the aging population, it is crucial to intensify efforts to encourage health profession students to pursue careers in geriatric care. Creating opportunities to increase interest and addressing factors that discourage interest may augment the pipeline of pharmacy students wishing to seek a career specializing in older adult care.

Pharmacy student attitudes towards a career in older adult care

INTRODUCTION

The United States (US) health care workforce is significantly unprepared to meet the needs of the growing older adult population. The primary purpose of this study is to examine the reasons that current pharmacy students are interested or not interested in pursuing a career or postgraduate training in geriatrics and to evaluate factors that influence this choice.

METHODS

This is a qualitative study utilizing focus groups of pharmacy students from the doctor of pharmacy (PharmD) curriculum of one public school of pharmacy in the US. Student pharmacists were invited to participate in the focus groups, and focused interviews were conducted by two postgraduate year two geriatric residents. Each discussion was audio recorded and subsequently transcribed, extracting key factors through open thematic coding.

RESULTS

Focus group participants (n = 8) most commonly identified job security, relationship value add, and past positive experiences with older adults as encouraging factors promoting interest, and inadequate geriatric exposure, emotional impact of death and dying, and heightened professional liability as discouraging factors deterring interest in a career in geriatrics.

CONCLUSIONS

Enhancing early exposure to geriatric patients and pharmacists, emphasizing common geriatric considerations in the PharmD curriculum, and increasing specialized older adult and end of life content could encourage more student pharmacists to seek careers in geriatrics.

North Carolina Pharmacists' Support for Hormonal Contraception Prescription Status Change

BACKGROUND

Pharmacist-prescribed hormonal contraception (HC) may offer additional avenues of access for patients; however, it is unknown whether pharmacists would support over-the-counter access to contraception over pharmacist-prescribed models.

OBJECTIVE

The objective of this study was to understand how North Carolina (NC) pharmacists believed HC should be classified and how pharmacist and pharmacy characteristics were associated with those beliefs.

METHODS

This study was a secondary analysis of a cross-sectional, anonymous, online survey completed by 587 licensed NC pharmacists. The primary outcome of interest was how pharmacists believed HC should be classified: prescription-only, pharmacist-prescribed, behind-the-counter, or over-the-counter. Multinomial bivariate and multivariable regression analyses were conducted to describe the association between pharmacist and pharmacy characteristics with the outcomes of interest through odds ratios and adjusted odds ratios, respectively. Chi-square tests were used to examine the association of geographic location with distribution of attitudes toward HC classification.

RESULTS

Fifty-one percent of NC pharmacists supported classification of HC as pharmacist-prescribed, while 23% supported non-prescription (behind- or over-the-counter) classification. Controlling for pharmacist demographics and pharmacy characteristics, completing residency training was significantly associated with supporting pharmacist-prescribed vs prescription-only classification (adjusted odds ratio (aOR) = 2.55, P = .02). Pharmacists had higher odds of supporting pharmacist-prescribed vs prescription-only HC if they agreed that they were well trained to do so (aOR = 3.14, P < .01). Distribution of attitudes about classification of HC did not significantly differ by geographic location (P = .14).

CONCLUSIONS

Most NC pharmacists support deviating from the current prescription-only classification of HC, with more support for pharmacist-prescribed classification. Continuing education programs should focus on training pharmacists to feel more confident prescribing HC.

The current state of geriatric pharmacy education in the United States - A cross-sectional survey

INTRODUCTION

Concerns exist that the current health care workforce is underprepared to meet the needs of the aging American population. This study evaluated the current emphasis on geriatrics in doctor of pharmacy curricula.

METHODS

A 61-item web-based survey was distributed to associate deans with oversight of pharmacy curricula at all United States (US) schools and colleges of pharmacy (S/COP). Information collected included school demographics, employment of geriatrics faculty, geriatric education (required, elective, and experiential courses), co-curricular geriatric experiences, postgraduate residency training in geriatrics, student interest in geriatrics, and perception of preparedness of the profession to care for older adults.

RESULTS

Of responding S/COP, 35% required a course in geriatrics while 63% offered a geriatrics elective. An advanced pharmacy practice experience (APPE) in geriatrics was required by 14%, and 79% offered an elective APPE. Insufficient curricular emphasis on geriatrics was noted by 44% of responding schools, and 33% lacked confidence that the profession of pharmacy is adequately prepared to care for the aging population.

CONCLUSIONS

According to the survey respondents, most pharmacy schools do not have a required didactic course or APPE in geriatrics. Additional emphasis on foundational principles of medication management for older adults in pharmacy curricula is warranted to meet the health care needs of the rapidly aging US population.

Role of Pharmacists in Hormonal Contraceptive Access: A Survey of North Carolina Pharmacists

The role of pharmacy in healthcare continues to evolve as pharmacists gain increased clinical responsibilities in the United States, such as the opportunity to prescribe hormonal contraception. Currently, North Carolina (NC) pharmacists do not have this ability. While previous research focused on the perceptions of community pharmacists surrounding this practice, no previous research surveyed all pharmacists in a state. This cross-sectional, web-based survey was distributed to all actively licensed pharmacists residing in the state of NC in November 2018. The primary objective was to determine the likelihood of NC community pharmacists to prescribe hormonal contraception. Secondary outcomes included: evaluation of all respondent support and perceptions of this practice as advocacy occurs on the state organization level and unified support is critical; opinions regarding over-the-counter (OTC) status of contraception; and potential barriers to prescribing. Overall, 83% of community pharmacists were likely to prescribe hormonal contraception. No differences in likelihood to prescribe were detected between geographic settings. Community pharmacists reported that the most common barriers to impact prescribing were added responsibility and liability (69.8%) and time constraints (67.2%). Fewer than 10% of respondents felt that hormonal contraception should be classified as OTC (7.9%). Noncommunity pharmacists were significantly more likely to agree that prescribing hormonal contraception allows pharmacists to practice at a higher level, that increased access to hormonal contraception is an important public health issue, and that rural areas would benefit from pharmacist-prescribed hormonal contraception. Overall, this study found a willingness to prescribe and support from the majority of both community and noncommunity pharmacists. Limitations of the study included a low response rate and potential nonresponse bias. Future research is needed to address solutions to potential barriers and uptake of this practice, if implemented.

Characteristics of High-Performing Interprofessional Health Care Teams Involving Student Pharmacists

Objective. To identify key themes of interprofessional models of care that offer experiential education opportunities for pharmacy learners. Methods. Six pharmacists from four Area Health Education Centers in North Carolina participated in individual, 60-minute interviews. Using two pre-established frameworks, the data were analyzed qualitatively by two members of the research team to identify the characteristics of interdisciplinary care teams. Results. At the level of the organization or health care system, the theme of appropriate resources and procedures emerged. At the level of the team, the themes of appropriate resources and procedures, communication, appropriate skill mix, climate, quality and outcomes of care, and respecting and understanding roles emerged. At the level of the individual, the themes of communication, respecting and understanding roles, and individual characteristics emerged. Three themes identified in a previous study failed to emerge in the interviews: leadership and management; personal rewards, training and development; and clarity of vision. Conclusion. Although a growing body of evidence highlights the importance of designing practice models to achieve interdisciplinary care that is patient-centered and effective, capacity to support learners and effectively educate them in the principles and practices of team-based care is limited. This study provides critical insight into characterizations of interprofessional models that integrate pharmacy learners. Further research is needed to better understand the barriers to designing and implementing IPE in experiential settings.

Pharmacist-prescribed hormonal contraception: A review of the current landscape

OBJECTIVE

The objective of this article is to review the current supply-side, demand-side, and regulatory landscape of pharmacist-prescribed hormonal contraception (HC) in the United States.

SUMMARY

Pharmacists appear to be supportive of pharmacist-prescribed HC. However, support does not necessarily indicate likelihood to implement the practice, even when reimbursement mechanisms exist. The likelihood of implementation can be increased with education and training of HC prescribing. Previous investigations suggest that women broadly support accessing contraception within a pharmacy. Expanded access, where available, can improve rates of use and adherence. Women at higher risk for unintended pregnancy, such as younger women and women without health insurance, are likely to use the pharmacy to procure HC. Despite a willingness to pay for HC consultations with pharmacists, costs can remain a significant barrier for many women.

CONCLUSIONS

Expanding access to HC through pharmacist-prescriptive authority could help curb the rates of unintended pregnancy in the United States. Pharmacists are well positioned for such a role; however, significant barriers for pharmacists and patients remain. Examination of current implementation methods will assist policy makers in overcoming these barriers.

Essential factors demonstrating readiness of primary care practices for clinical pharmacy services

PURPOSE

The characteristics of primary care practices that are necessary to establish and maintain ambulatory care clinical pharmacy services were identified.

METHODS

A focus group of 15 ambulatory care pharmacists in Western North Carolina developed a survey of 26 practice readiness statements pertaining to the development of clinical pharmacy services in primary care. National ambulatory care pharmacy experts were then surveyed using a modified Delphi model for consensus building to determine which items were essential. Four rounds of surveys were completed. After each round, statements were accepted as consensus, modified, or removed from the survey based on responses. Statements were deemed to have reached consensus when 80% of respondents were in agreement.

RESULTS

A total of 6 statements reached agreement after 4 rounds of survey: (1) full integration into the team, (2) access to the electronic health record (EHR), (3) a physician or administrative champion, (4) appropriate equipment provided by the clinic, (5) a private room to see patients, and (6) a practice that is open to team-based care.

CONCLUSION

An expert panel of ambulatory care pharmacists identified 6 factors that should be considered prior to establishing ambulatory care services in primary care practices. Of these, foundational elements included full integration into the care team, presence of a physician or administrative champion, and a practice that is ready for team-based care. Operational elements included access to the practice's EHR, equipment provided by the practice, and private space to see patients.

Creating a new rural pharmacy workforce: Development and implementation of the Rural Pharmacy Health Initiative

PURPOSE

An innovative certificate program aimed at expanding the rural pharmacy workforce, increasing the number of pharmacists with expertise in rural practice, and improving healthcare outcomes in rural North Carolina is described.

SUMMARY

Predicted shortages of primary care physicians and closures of critical access hospitals are expected to worsen existing health disparities. Experiential education in schools and colleges of pharmacy primarily takes place in academic medical centers and, unlike experiential education in medical schools, rarely emphasizes the provision of patient care in rural U.S. communities, where chronic diseases are prevalent and many residents struggle with poverty and poor access to healthcare. To help address these issues, UNC Eshelman School of Pharmacy developed the 3-year Rural Pharmacy Health Certificate program. The program curriculum includes 4 seminar courses, interprofessional education and interaction with medical students, embedding of each pharmacy student into a specific rural community for the duration of training, longitudinal ambulatory care practice experiences, community engagement initiatives, leadership training, development and implementation of a population health project, and 5 pharmacy practice experiences in rural settings.

CONCLUSION

The Rural Pharmacy Health Certificate program at UNC Eshelman School of Pharmacy seeks to transform rural pharmacy practice by creating a pipeline of rural pharmacy leaders and teaching a unique skillset that will be beneficial to healthcare systems, communities, and patients.

Leaving hip rotation out of a conventional 3D gait model improves discrimination of pathological gait in cerebral palsy: A novel neural network analysis

BACKGROUND

Complex clinical gait analysis results can be expressed as single number gait deviations by applying multivariate processing methods. The original Movement Deviation Profile (MDP) quantifies the deviation of abnormal gait using the most trusted nine dynamic joint angles of lower limbs.

RESEARCH QUESTION

Which subset of joint angles maximises the ability of the MDP to separate abnormal gait from normality? What is the effect of using the best subset in a large group of patients, and in individuals?

METHODS

A self-organising neural network was trained using normal gait data from 166 controls, and then the MDP of 1923 patients with cerebral palsy (3846 legs) was calculated. The same procedure was repeated with 511 combinations of the nine joint angles. The standardised distances of abnormal gait from normality were then calculated as log-transformed Z-scores to select the best combination. A mixed design ANOVA was used to assess how removing the least discriminating angle improved the separation of patients from controls. The effect of using the optimal subset of angles was also quantified for each individual leg by comparing the change in MDP to the independent FAQ levels of patients.

RESULTS

Removal of hip rotation significantly (p<0.0005) increased the separation of the patient group from normality (ΔZ-score 0.24) and also at FAQ levels 7-10 (ΔZ-score 0.38, 0.27, 0.22, 0.14). The MDP of individual patients changed in a wider range of -4.65 to 1.12 Z-scores and their change matched their independent FAQ scores, with less functional patients moving further from, and more functional patients moving closer to normality.

SIGNIFICANCE

In existing gait databases we recommend excluding hip rotation from data used to calculate the MDP. Alternatively, the calculation of hip rotation can be improved by post-hoc correction, but the ultimate solution is to use more accurate and reliable models of hip rotation.

Development of pharmacy resident leadership skills through creation of a regional ambulatory care forum

BACKGROUND AND PURPOSE

Action-based leadership activities help refine leadership skills. This paper describes an experiential, longitudinal leadership experience for post-graduate year two (PGY2) pharmacy residents in ambulatory care.

EDUCATIONAL ACTIVITY AND SETTING

As part of a leadership and advocacy rotation, two PGY2 ambulatory care pharmacy residents collaborated with a state association, North Carolina Association of Pharmacists, to co-chair a newly formed regional ambulatory care forum in the western part of the state. The residents developed charges for the group, directed and organized the leadership team meetings, moderated the member events of approximately 30 participants, and served as liaisons to the state association and its members. Two residency preceptors who supervised the academic and leadership experiences for the residency program provided oversight for the residents with the forum. Residents completed written and oral self-reflections, received formative feedback from the forum's leadership team and leadership preceptor, participated in a 360-degree leadership evaluation, and received quarterly summative evaluations.

FINDINGS

Skills developed included leading a group, event planning, advocacy, networking, communication, professional writing, creating a shared vision, teamwork, and collaboration.

SUMMARY

Serving in leadership roles within professional organizations can provide PGY2 pharmacy residents with practical hands-on leadership opportunities to help prepare them for positional and non-positional leadership roles in the future.

The Integral Role of the Clinical Pharmacist Practitioner in Primary Care

Clinical pharmacist practitioners serve as integral team members in primary care clinics. They extend the care provided for patients with chronic illnesses, improve health and wellness, and positively impact quality metrics in patient-centered medical homes and accountable care organizations.

Exploring the Requisite Skills and Competencies of Pharmacists Needed for Success in an Evolving Health Care Environment

Objective. To identify and describe the core competencies and skills considered essential for success of pharmacists in today's rapidly evolving health care environment. Methods. Six breakout groups of 15-20 preceptors, pharmacists, and partners engaged in a facilitated discussion about the qualities and characteristics relevant to the success of a pharmacy graduate. Data were analyzed using qualitative methods. Peer-debriefing, multiple coders, and member-checking were used to promote trustworthiness of findings. Results. Eight overarching themes were identified: critical thinking and problem solving; collaboration across networks and leading by influence; agility and adaptability; initiative and entrepreneurialism; effective oral and written communication; accessing and analyzing information; curiosity and imagination; and self-awareness. Conclusion. This study is an important step toward understanding how to best prepare pharmacy students for the emerging health care needs of society.

Interprofessional care for patients with osteoporosis in a continuing care retirement community

OBJECTIVES

To assess the quality of care provided to patients with osteoporosis in a continuing care retirement community (CCRC) after implementation of an interprofessional osteoporosis clinic (OPC). Specifically, quality measures were evaluated, including dual-emission X-ray absorptiometry (DXA) screening, calcium and vitamin D supplementation, and prescription treatment of osteoporosis and low bone mass in an ambulatory independent living community.

SETTING

Large family medicine teaching practice that provides primary care for residents in one main practice, 5 rural satellite practices, and 2 CCRCs. An interprofessional OPC was developed at the main practice in 2005. Patients at all of the organization's sites could be referred to the main practice for osteoporosis management. A needs assessment conducted at one of the CCRCs in 2011 revealed that rates of screening and treatment were suboptimal for its residents despite availability of an off-site OPC.

PRACTICE INNOVATION

In 2012, a new interprofessional OPC including a physician, medical assistant, and pharmacist was replicated on-site at the CCRC so that residents had access to this service within their medical home.

EVALUATION

Quality measures were evaluated after implementation of the team-based OPC on-site at a CCRC and included: 1) DXA screening; 2) calcium and vitamin D supplementation; and 3) prescription treatment of osteoporosis and low bone mass.

RESULTS

Twenty-nine patients were seen in the new OPC from January 2012 to August 2013. Ninety-three percent had appropriate DXA testing after OPC implementation. Patients accepted pharmacist recommendations regarding calcium and vitamin D supplementation 90% and 86% of the time, respectively. All but 4 patients received appropriate treatment for osteoporosis or low bone mass.

CONCLUSION

Providing a team-based OPC on site in a CCRC improved quality measures for screening and treatment of osteoporosis and low bone mass.

Challenges in the Screening and Management of Osteoporosis

Osteoporosis imposes a significant burden of morbidity, mortality, and cost on patients and the health care system. Compliance with existing screening and treatment recommendations is low. There are multiple barriers to treatment including complexity of medical management, cost of medications, real and perceived side effects of medications, and nonadherence.

Professional Organizations for Pharmacy Students on Satellite Campuses

Objective. To evaluate the structure and impact of student organizations on pharmacy school satellite campuses. Methods. Primary administrators from satellite campuses received a 20-question electronic survey. Quantitative data analysis was conducted on survey responses. Results. The most common student organizations on satellite campuses were the American Pharmacists Association (APhA) (93.1%), American Society of Health-System Pharmacists (ASHP) (89.7%), Christian Pharmacists Fellowship International (CPFI) (60.0%), state organizations (51.7%), and local organizations (58.6%). Perceived benefits of satellite campus organizations included opportunities for professional development, student engagement, and service. Barriers to success included small enrollment, communication between campuses, finances, and travel. Conclusion. Student organizations were an important component of the educational experience on pharmacy satellite campuses and allowed students to develop professionally and engage with communities. Challenges included campus size, distance between campuses, and communication.

Use of Ex Vivo Normothermic Perfusion for Quality Assessment of Discarded Human Donor Pancreases

A significant number of pancreases procured for transplantation are deemed unsuitable due to concerns about graft quality and the associated risk of complications. However, this decision is subjective and some declined grafts may be suitable for transplantation. Ex vivo normothermic perfusion (EVNP) prior to transplantation may allow a more objective assessment of graft quality and reduce discard rates. We report ex vivo normothermic perfusion of human pancreases procured but declined for transplantation, with ABO-compatible warm oxygenated packed red blood cells for 1-2 h. Five declined human pancreases were assessed using this technique after a median cold ischemia time of 13 h 19 min. One pancreas, with cold ischemia over 30 h, did not appear viable and was excluded. In the remaining pancreases, blood flow and pH were maintained throughout perfusion. Insulin secretion was observed in all four pancreases, but was lowest in an older donation after cardiac death pancreas. Amylase levels were highest in a gland with significant fat infiltration. This is the first study to assess the perfusion, injury, as measured by amylase, and exocrine function of human pancreases using EVNP and demonstrates the feasibility of the approach, although further refinements are required.

Fluorescence Photodiagnostics and Photobleaching Studies of Cancerous Lesions using Ratio Imaging and Spectroscopic Techniques

Topical or systemic administration of 5-aminolaevulinic acid results in biosynthesis of the photosensitiser protoporphyrin IX (PpIX) with some selectivity for malignant lesions. Excitation near 400 nm excites both intrinsic green tissue autofluorescence and red fluorescence from PpIX which may be exploited for the optical diagnosis of malignant and premalignant disease. In this work the utility of a cooled 12-bit single chip charge-coupled device (CCD) colour camera was investigated for photodiagnostic fluorescence ratio imaging. The red to green fluorescence intensity ratios were calculated for each pixel in real-time and fluorescence ratio images were displayed typically at a rate of 2 frames/s. Laboratory tests of fluorescence ratio imaging showed good contrast enhancement between control tissues and tissue phantoms and those containing porphyrin photosensitisers. In preliminary clinical tests, a clear demarcation between neoplastic/cancerous lesions and adjacent normal tissue was demonstrated. The extent of PpIX photobleaching during photodynamic therapy was also investigated using fluorescence ratio imaging.

Billing for pharmacists' cognitive services in physicians' offices: multiple methods of reimbursement

OBJECTIVES

To evaluate the charges and reimbursement for pharmacist services using multiple methods of billing and determine the number of patients that must be managed by a pharmacist to cover the cost of salary and fringe benefits.

SETTING

Large teaching ambulatory clinic in North Carolina.

MAIN OUTCOME MEASURES

Annual charges and reimbursement, patient no-show rate, clinic capacity, number of patients seen monthly and annually, and number of patients that must be seen to pay for a pharmacist's salary and benefits.

RESULTS

A total of 6,930 patient encounters were documented during the study period. Four different clinics were managed by the pharmacists, including anticoagulation, pharmacotherapy, osteoporosis, and wellness clinics. "Incident to" level 1 billing was used for the anticoagulation and pharmacotherapy clinics, whereas level 4 codes were used for the osteoporosis clinic. The wellness clinic utilized a negotiated fee-for-service model. Mean annual charges were $65,022, and the mean reimbursement rate was 47%. The mean charge and collection per encounter were $41 and $19, respectively. Eleven encounters per day were necessary to generate enough charges to pay for the cost of the pharmacist. Considering actual reimbursement rates, the number of patient encounters necessary increased to 24 per day. "What if" sensitivity analysis indicated that billing at the level of service provided instead of level 1 decreased the number of patients needed to be seen daily. Billing a level 4 visit necessitated that five patients would need to be seen daily to generate adequate charges. Taking into account the 47% reimbursement rate, 10 level 4 encounters per day were necessary to generate appropriate reimbursement to pay for the pharmacist.

CONCLUSION

Unique opportunities for pharmacists to provide direct patient care in the ambulatory setting continue to develop. Use of a combination of billing methods resulted in sustainable reimbursement. The ability to bill at the level of service provided instead of a level 1 visit would decrease the number of patients needed to pay for a pharmacist.

Comparative clinical- and cost-effectiveness of candesartan and losartan in the management of hypertension and heart failure: a systematic review, meta- and cost-utility analysis

The UK National Health Service (NHS) currently spends in excess of £250 million per annum on angiotensin II receptor blockers (ARBs) for the treatment of hypertension and heart failure; with candesartan currently dominating the market. With the recent introduction of generic losartan, we set out to directly compare the branded market leader to its now cheaper alternative. The primary objectives were to compare the blood pressure (BP) lowering efficacy and cardiovascular outcomes of candesartan and losartan in the treatment of essential hypertension and chronic heart failure, respectively. The secondary objective was to model their comparative incremental cost-effectiveness in a UK NHS setting. The Cochrane Central Register of Controlled Trials (Cochrane Library 2009, issue 2), which contains the Hypertension and Heart Group's specialist register, Medline (1950-February 2010), and Embase (1980-February 2010) were included in the search strategy. Selection criteria were randomised studies of candesartan versus losartan in adults (> 18 years). The main outcome measures were as follows: Hypertension: mean change from baseline in trough (24 h postdose) systolic and diastolic BP. Heart failure: composite of cardiovascular death and hospital admission for management of heart failure. Two reviewers applied inclusion criteria, assessed trial quality, and extracted data. Eight (three of which met inclusion criteria) and zero trials compared candesartan directly with losartan in the treatment of hypertension and heart failure, respectively. A between-treatment difference of -1.96 mmHg [95% confidence interval (CI) -2.40 to -1.51] for trough diastolic BP and -3.00 mmHg (95% CI -3.79 to -2.22) for trough systolic BP in favour of candesartan was observed. Based on this differential, a 10-year Markov model estimates the cost per quality-adjusted life-year gained to exceed £40,000 for using candesartan in place of generic losartan. Candesartan reduces BP to a slightly greater extent when compared with losartan, however, such difference is unlikely to be cost-effective based on current acquisition costs, perceived NHS affordability thresholds and use of combination regimens. We could find no robust evidence supporting the superiority of candesartan over losartan in the treatment of heart failure. We therefore recommend using generic losartan as the ARB of choice which could save the UK NHS approximately £200 million per annum in drug costs.

High-dose oral vitamin D3 supplementation in the elderly

SUMMARY

Daily dosing with vitamin D often fails to achieve optimal outcomes, and it is uncertain what the target level of 25-hydroxyvitamin D should be. This study found that large loading doses of vitamin D(3) rapidly and safely normalize 25OHD levels, and that monthly dosing is similarly effective after 3-5 months. With baseline 25OHD > 50 nmol/L, vitamin D supplementation does not reduce PTH levels.

INTRODUCTION

There is concern that vitamin D supplementation doses are frequently inadequate, and that compliance with daily medication is likely to be suboptimal.

METHODS

This randomized double-blind trial compares responses to three high-dose vitamin D(3) regimens and estimates optimal 25-hydroxyvitamin D (25OHD) levels, from changes in parathyroid hormone (PTH), and procollagen type I amino-terminal propeptide (P1NP) in relation to baseline 25OHD. Sixty-three elderly participants were randomized to three regimens of vitamin D supplementation: a 500,000-IU loading dose; the loading dose plus 50,000 IU/month; or 50,000 IU/month.

RESULTS

The Loading and Loading + Monthly groups showed increases in 25OHD of 58 +/- 28 nmol/L from baseline to 1 month. Thereafter, levels gradually declined to plateaus of 69 +/- 5 nmol/L and 91 +/- 4 nmol/l, respectively. In the Monthly group, 25OHD reached a plateau of ~80 +/- 20 nmol/L at 3-5 months. There were no changes in serum calcium concentrations. PTH and P1NP were only suppressed by vitamin D treatment in those with baseline 25OHD levels <50 and <30 nmol/L, respectively.

CONCLUSIONS

Large loading doses of vitamin D(3) rapidly and safely normalize 25OHD levels in the frail elderly. Monthly dosing is similarly effective and safe, but takes 3-5 months for plateau 25OHD levels to be reached.

Equine multinodular pulmonary fibrosis: a newly recognized herpesvirus-associated fibrotic lung disease

Pulmonary fibrosis and interstitial lung disease are poorly understood in horses; the causes of such conditions are rarely identified. Equine herpesvirus 5 (EHV-5) is a gamma-herpesvirus of horses that has not been associated with disease in horses. Pathologic and virologic findings from 24 horses with progressive nodular fibrotic lung disease associated with EHV-5 infection are described and compared with 23 age-matched control animals. Gross lesions consisted of multiple nodules of fibrosis throughout the lungs. Histologically, there was marked interstitial fibrosis, often with preservation of an "alveolar-like" architecture, lined by cuboidal epithelial cells. The airways contained primarily neutrophils and macrophages. Rare macrophages contained large eosinophilic intranuclear viral inclusion bodies; similar inclusion bodies were also found cytologically. The inclusions were identified as herpesviral-like particles by transmission electron microscopy in a single horse. In situ hybridization was used to detect EHV-5 nucleic acids within occasional macrophage nuclei. With polymerase chain reaction (PCR), the herpesviral DNA polymerase gene was detected in 19/24 (79.2%) of affected horses and 2/23 (8.7%) of the control horses. Virus genera-specific PCR was used to detect EHV-5 in all of the affected horses and none of the control horses. EHV-2 was detected in 8/24 (33.3%) of affected horses and 1/9 (11.1%) of the control horses. This disease has not been reported before, and the authors propose that based upon the characteristic gross and histologic findings, the disease be known as equine multinodular pulmonary fibrosis. Further, we propose that this newly described disease develops in association with infection by the equine gamma-herpesvirus, EHV-5.

Molecular genetic analysis of haematological malignancies II: mature lymphoid neoplasms

Molecular genetic techniques have become an integral part of the diagnostic assessment for many lymphomas and other chronic lymphoid neoplasms. The demonstration of a clonal immunoglobulin or T cell receptor gene rearrangement offers a useful diagnostic tool in cases where the diagnosis is equivocal. Molecular genetic detection of other genomic rearrangements may not only assist with the diagnosis but can also provide important prognostic information. Many of these rearrangements can act as molecular markers for the detection of low levels of residual disease. In this review, we discuss the applications of molecular genetic analysis to the chronic lymphoid malignancies. The review concentrates on those disorders for which molecular genetic analysis can offer diagnostic and/or prognostic information.

Application of growth factor stimulants improves cytogenetic analysis of chronic myeloproliferative disorder patients without alteration to cell lineage or clonality

Conventional cytogenetic methods rely on culturing bone marrow aspirates to obtain suitable and sufficient mitotic figures for G-banded analysis. Samples from patients with chronic myeloproliferative disorders (CMPD) often have increased failure rates due to reduced growth and poor morphology, all of which hamper the conventional karyotyping investigation. The application of growth factor (GF) stimulants to bone marrow aspirates has been shown to yield significant increases in both the quality and quantity of bone marrow metaphases obtained in 53 CPMD patient samples. All cultures were stimulated using the conditioned supernatant from the human bladder carcinoma cell line 5637, which contains IL-3, IL-6, and G-CSF. Results were assessed qualitatively on G-banded preparations and quantitatively by mitotic index (MI = % dividing cells). To assess whether the application of GF stimulants leads to clonal selection, culture samples from 15 patients were analyzed by fluorescence in situ hybridization, which supported the theory that clonal selection remains unaltered in GF-stimulated cultures. In addition to this immunophenotyping of cells, we demonstrated the lineage of cells propagated under these conditions. Cell markers were chosen to characterize B-lymphoid, T-lymphoid, myeloid, and primitive cell types. Results indicated that T cells were maintained in culture and B-lymphoid markers remained negative. In the myeloid subset, there was an overall reduction in the pan-myeloid markers. We believe this represents the loss of terminally differentiated cells (e.g., neutrophils) in culture. Overall, the study clearly demonstrates that the application of GF stimulants does not alter clonality or cell lineage propagated in these samples and is therefore suitable for application in diagnostic cytogenetic laboratories.

Structural and chemical changes in ultra-high-molecular-weight polyethylene due to gamma radiation-induced crosslinking and annealing in air

Ultra-High-Molecular-Weight-Polyethylene (UHMWPE) is the material of choice for one of the articulating surfaces in many total joint replacements, notably hip and knee prostheses. The various methods used by the orthopaedic biomaterials industry to sterilize and anneal UHMWPE components, and the resulting oxidation and crosslinking, affect the mechanical wear resistance properties in ways still unknown at the microscopic and molecular levels. Transmission electron microscopy and chemical pyrolysis were used to quantify crosslinking induced by gamma irradiation and annealing in air. Changes in lamellar stacking and the amount of crosslinking suggest two types of crosslinking: relatively unstable crosslinks in the amorphous region initially resulting from gamma irradiation which are later replaced by more thermally stable crosslinks resulting from rearrangements at the annealing temperature. Lamellar mobility, the ability of crystalline lamellae to flow in the material, is enhanced during the transition from one type of bond to the other, and this appears to optimize near eight hours of annealing time. Results from decomposition and percent crystallinity measurements provide further support for this theory.

A single common urgent pathway for all colorectal referrals reduces time to diagnosis and treatment

OBJECTIVE

Guidelines for the urgent referral of patients with suspected colorectal cancer were introduced in 2000. They aimed to facilitate the prompt diagnosis and treatment of patients with symptoms suggestive of malignant disease. Recent assessment of these guidelines has suggested that although they identify 9-14% of patients with colorectal cancer, they may be used inappropriately and may lead to delays in treatment for those patients with cancers whose symptoms do not fit the guidelines. We aimed to assess the effect of introducing a single pathway for all referrals irrespective of indicated urgency.

METHOD

All referral letters to a single consultant colorectal surgeon over a 6-month period were coded 'urgent' irrespective of the indicated urgency on the original referral letter. Data was collected prospectively on 47 patients diagnosed with colorectal cancer identified over the trial period. Patient demographics, the mode of presentation, urgency of referral and waiting times were documented.

RESULTS

Following the introduction of the common urgent referral pathway, no patient waited longer than 62 days from referral to treatment or 31 days from the decision to treat to first treatment, thus meeting government targets introduced in 2005.

CONCLUSION

The introduction of the urgent referral guidelines has accelerated the referral pathway for patients with symptoms suggestive of colorectal cancer, although this is at the expense of the majority of patients who present via conventional pathways. The introduction of a common urgent pathway allows prompt diagnosis and treatment and is of particular benefit for the majority of patients not referred via the 2-week standard. Until a more accurate method of identifying the highest risk patients is implemented, we suggest that all patients are seen on an urgent basis.

Acute anhydrous ammonia intoxication in cattle

Intoxication with anhydrous ammonia (AA) is a common occupation-related health problem affecting farmers and fertilizer applicators, however, very few descriptions of animal exposure to this toxicant exist. Thieves entered a feedlot and damaged a liquid AA storage tank, resulting in the accidental leakage of gas from a valve. Overnight, 12 cattle were found dead, with a total mortality of 64 cattle out of 260 on the premises dying or euthanized in < 1 week. Signs of affected cattle included blindness, drooling, inappetence, respiratory distress, recumbency, and death. Two cattle were submitted live for diagnostic evaluation 3 days after initial exposure. Gross lesions included corneal ulcers, fibrinonecrotizing rhinitis, hemorrhages within the nasal sinuses, and anterioventral bronchopneumonia. Microscopic lesions consisted predominantly of degeneration and necrosis of superficial epithelium lining nasal passages, trachea, and pulmonary airways. This case illustrates the acute AA effects on cattle, which is likely to be an increasingly encountered problem because of on-farm storage of AA and its access by illicit drug manufacturers.

Visual search and coordination changes in response to video and point-light demonstrations without KR

The authors examined the observational learning of 24 participants whom they constrained to use the model by removing intrinsic visual knowledge of results (KR). Matched participants assigned to video (VID), point-light (PL), and no-model (CON) groups performed a soccer-chipping task in which vision was occluded at ball contact. Pre- and posttests were interspersed with alternating periods of demonstration and acquisition. The authors assessed delayed retention 2-3 days later. In support of the visual perception perspective, the participants who observed the models showed immediate and enduring changes to more closely imitate the model's relative motion. While observing the demonstration, the PL group participants were more selective in their visual search than were the VID group participants but did not perform more accurately or learn more.

Molecular genetic analysis of haematological malignancies: I. Acute leukaemias and myeloproliferative disorders

Molecular genetic techniques are now routinely applied to haematological malignancies within a clinical laboratory setting. The detection of genetic rearrangements not only assists with diagnosis and treatment decisions, but also adds important prognostic information. In addition, genetic rearrangements associated with leukaemia can be used as molecular markers allowing the detection of low levels of residual disease. This review will concentrate on the application of molecular genetic techniques to the acute leukaemias and myeloprolferative disorders.

Megakaryocytes modulate osteoblast synthesis of type-l collagen, osteoprotegerin, and RANKL

We have previously reported evidence that megakaryocytes may play a role in bone remodeling, possibly by interactions with cells at the bone surface. To investigate the direct effects of megakaryocytes on osteoblasts, maturing megakaryocytes (CD61 positive cells) were isolated and added to cultures of human osteoblasts. Osteoblasts alone and osteoblasts treated with CD61-negative (non-megakaryocytic) cells were used as control cultures. After 48 h in culture, megakaryocytes were removed and osteoblasts immunolocalized for type-1 collagen, osteoprotegerin (OPG), and RANKL expression. Similar cultures were used for RNA extraction with mRNA for Col 1A1, OPG, and RANKL in osteoblasts measured quantitatively by RT-PCR. Osteoblasts cultured alone showed high levels of expression of collagen with 74% (+/-7) of cells staining positively. When cultured with megakaryocytes, the number of positively staining cells remained similar but the intensity of expression was increased 1.54-fold (P < 0.02). OPG was expressed by 32% (+/-6.3) of osteoblasts increasing to 51% (+/-5.5) when cultured in the presence of megakaryocytes (P < 0.01) with a 1.63-fold increase in intensity of expression (P < 0.01). In contrast, osteoblasts cultured with megakaryocytes showed suppression of RANKL expression; 35.6% (+/-5.8) of osteoblasts cultured alone stained positively decreasing to 24.3% (+/-5.3) with a 1.6-fold diminished intensity of expression (P < 0.02). Osteoblasts co-cultured with CD61-negative cells showed no differences in collagen, OPG, or RANKL expression levels compared to osteoblasts cultured alone. mRNA data supported these findings with a 3.1-fold increase in Col 1A1 expression in megakaryocyte-treated cultures compared to controls (P < 0.02). Low-level OPG mRNA expression increased 8.14-fold in osteoblasts cultured in the presence of megakaryocytes (P < 0.01), while RANKL expression was suppressed 3.3-fold (P < 0.02). These results demonstrate that in vitro, megakaryocytes have direct effects on osteoblastic production of factors affecting both bone formation and resorption. These data provide further evidence that megakaryocytes may play an important role in bone remodeling.

Clinical inquiries. What interventions can help patients stop using chewing tobacco?

Nicotine replacement therapy (NRT), including gum and patches, decreases cravings and short-term abstinence rates, but does not improve long-term abstinence (strength of recommendation [SOR]: B, meta-analysis of small randomized controlled studies [RCT]). It is unclear if bupropion has an effect on cessation rates (SOR: B, small RCTs with conflicting results). Behavioral interventions increase abstinence rates for smokeless tobacco users (SOR: B, meta-analysis of small RCTs).

Synthesis of osteoprotegerin and RANKL by megakaryocytes is modulated by oestrogen

To investigate the mechanisms by which megakaryocytes (MKs) may influence bone remodelling, CD34(+) cells were cultured for 6, 9 and 12 d with or without 17beta-oestradiol (E) and immunolocalized for osteoprotegerin (OPG), receptor activator of nuclear factor (NF)-kappaB ligand (RANKL) and CD61. Specific protein expression was measured quantitatively by image analysis. Fluorescence-based immunocytochemistry was used to co-localize OPG and RANKL with CD61. OPG and RANKL mRNA was assessed in CD61(+) cells with or without E at 24 and 48 h. At 6 d, OPG and RANKL expression was unchanged by E treatment. At 9 d, the E-treated cultures with maturing MKs showed a 1.72-fold (P < 0.01) increase in OPG expression and a 1.8-fold (P < 0.01) reduction in RANKL. Maximal OPG expression was seen at 12 d with a threefold induction of expression (P < 0.001), whilst RANKL levels were further suppressed by 2.3-fold compared with controls (P < 0.001). CD61 co-localized with OPG and RANKL. mRNA data were consistent with that of protein, with a 90-fold induction in OPG expression and a 34-fold suppression of RANKL expression by E (P < 0.001). Thus, E stimulates megakaryocytopoiesis and modulates OPG and RANKL expression, providing evidence that MKs may play a role in bone remodelling and, in particular, in E-induced changes in osteoclastogenesis and bone resorption.

Methemoglobinemia and eccentrocytosis in equine erythrocyte flavin adenine dinucleotide deficiency

This report describes erythrocyte biochemical findings in an adult Spanish mustang mare that exhibited persistent methemoglobinemia, eccentrocytosis, and pyknocytosis that were not related to the consumption or administration of an exogenous oxidant. The methemoglobinemia was attributed to a deficiency in cytochrome-b5 reductase (Cb5R) activity, and the eccentrocytes and pyknocytes were attributed to a marked deficiency in reduced nicotinamide adenine dinucleotide phosphate-dependent glutathione reductase (GR) activity that resulted in decreased reduced glutathione concentration within erythrocytes. The GR activity increased to a near-normal value after addition of flavin adenine dinucleotide (FAD) to the enzyme assay, indicating a deficiency of FAD in erythrocytes. The methemoglobinemia, eccentrocytosis, and pyknocytosis were attributed to deficiency of FAD in erythrocytes because the GR and Cb5R enzymes use FAD as a cofactor. This deficiency in FAD results from a defect in erythrocyte riboflavin metabolism, which has not been documented previously in animals.