Rh immune globulin immunoprophylaxis after RhD-positive red cell exposure in RhD-negative patients via transfusion: A survey of practices.

BACKGROUND: Current Association for the Advancement of Blood & Biotherapies (AABB) standards require transfusion services to have a policy on Rh immune globulin (RhIG) immunoprophylaxis for when RhD-negative patients are exposed to RhD-positive red cells. This is a survey of AABB-accredited transfusion services in the United States (US) regarding institutional policies and practices on RhIG immunoprophylaxis after RhD-negative patients receive RhD-positive (i.e., RhD-incompatible) packed red blood cell (pRBC) and platelet transfusions. RESULTS: Approximately half of the respondents (50.4%, 116/230) have policies on RhIG administration after RhD-incompatible pRBC and platelet transfusions, while others had policies for only pRBC (13.5%, 31/230) or only platelet (17.8%, 41/230) transfusions, but not both. In contrast, 18.3% (42/230) report that their institution has no written policies on RhIG immunoprophylaxis after RhD-incompatible transfusions. Most institutions (70.2%, 99/141) do not have policies addressing safety parameters to mitigate the risk of hemolysis associated with the high dose of RhIG required to prevent RhD alloimmunization after RhD-incompatible pRBC transfusions. DISCUSSION: With approximately half of US AABB-accredited institutions report having policies on RhIG immunoprophylaxis after both RhD-incompatible pRBC and platelet transfusions, some institutions may not be in compliance with AABB standards. Further, most with policies on RhIG immunoprophylaxis after RhD-incompatible pRBC transfusion do not have written safeguards to mitigate the risk of hemolysis associated with the high dose of RhIG required. CONCLUSION: This survey underscores the diverse and inadequate institutional policies on RhIG immunoprophylaxis after RhD exposure in Rh-negative patients via transfusion. This observation identifies an opportunity to improve transfusion safety.

A case of mistaken MELD (model for end stage liver disease) score-How an acute hemolytic transfusion reaction falsely altered a patient's transplant status.

BACKGROUND: An acute hemolytic transfusion reaction (AHTR) caused by intravascular hemolysis features a decrease in hemoglobin/hematocrit, reduced haptoglobin, and increases in creatinine, and bilirubin. Acute intravascular hemolysis carries its own morbidity and mortality, especially in the setting of a patient liver disease related pre-existing alterations in hemostasis. Additionally, AHTR significantly impacts the laboratory values used in calculating the Model for End Stage Liver Disease (MELD) score and thus liver transplant status. CASE REPORT: Herein, we present a case of a patient with hepatorenal syndrome due to ESLD on the transplant list who developed an AHTR due to an evolving anti-Jka that initially presented as non-specific reactivity in solid phase adherence testing. This evolving antibody caused intravascular hemolysis and a significant increase in bilirubin from 4.7 to 17.1 mg/dl, thus, raising the MELD score, increasing the predicted short-term mortality risk, and affecting the patient's transplant status. RESULTS: Acute hemolysis caused significant elevation of bilirubin raising the MELD score which increased both the predicted mortality to 70 percent and the perceived urgency of transplant. The MELD score improved after resolution of the AHTR and clearing of the offending Jka-positive RBCs. CONCLUSION: This case highlights the effect of AHTR on parameters used in the determination of MELD score which significantly increases the perceived short-term mortality and urgency of liver transplant. Therefore, any nonspecific reactivity in initial workup could be due to developing antibodies, and put the patient at higher risk for an acute hemolytic transfusion reaction.

Moderated Mediation of the eCHECKUP TO GO College Student Cannabis Use Intervention.

Background: Cannabis use rates are rising among college students, creating a need for effective and accessible intervention options. One such intervention, the Marijuana eCHECKUP TO GO (eCTG) program, has relatively few studies investigating mechanisms of change and related outcomes. This intervention provides users with personalized normative feedback to adjust user's normative perceptions and use patterns. The current study tested moderated mediation of program effects between the eCTG intervention condition and a healthy stress management (HSM) control condition in a college student sample of near-daily cannabis users. Protective behavioral strategies (PBS) were measured among the eCTG conditionMethods: Data were analyzed from a sample of 227 students who were randomly assigned to the eCTG intervention condition or HSM control condition. Change in cannabis use frequency was measured by re-administering the baseline survey at a six-week follow-up. Multi-group moderated mediation path analysis tested the effects of the eCTG intervention on change in cannabis use frequency through PBS, descriptive norms, and injunctive norms, with multi-group categories defined by sex.Results: Direct effects indicated the intervention predicted reduced descriptive norm perceptions and cannabis use frequency. An indirect effect was found for the intervention condition on reducing cannabis use frequency through change in descriptive norms in males. Similarly, an indirect effect was seen for intervention condition on reducing cannabis use frequency through change in injunctive norms for females.Conclusions: Findings suggest changes in descriptive norms played a sex-specific mediating role in the mechanisms of change for the eCTG intervention on reductions in cannabis use frequency.

An update on the Cartwright (Yt) blood group system.

CONCLUSIONS: This update of the Cartwright blood group system (George MR. Cartwright blood group system review. Immunohematology 2012;28:49-54) reports the addition of three new antigens. From 1956 until 2017, the Cartwright (Yt) blood group system consisted of two antigens, Yta and Ytb. Yta is a high-prevalence antigen, and its antithetical antigen, Ytb, shows much lower prevalence. In 2017, YTEG was identified, and, in 2018, the International Society of Blood Transfusion added high-prevalence antigens YTLI and YTOT. Cartwright antigens result from point mutations in the acetylcholinesterase gene on chromosome 7q. Little is known about antibodies against YTEG, YTLI, and YTOT. Discovery of these new antigens required plasma inhibition studies and molecular analysis for further characterization. Based on experience with Yta and Ytb, Cartwright antibodies have rarely demonstrated clinical significance; nevertheless, cases of in vivo hemolysis have been reported, suggesting that clinical significance should be interpreted on a case-by-case basis.

Clinical approach after identification of a rare anti-Ena in a prenatal sample.

CONCLUSIONS: The antigens associated with the MNS blood group system (ISBT 002) are located on glycophorin A (GPA) and glycophorin B (GPB). The most frequently encountered antibodies to antigens in this system by a transfusion medicine service are those directed against M, N, S, and s. Individuals lacking GPA typically have red blood cells that lack M, N, and Ena, whereas those lacking both GPA and GPB lack M, N, and Ena as well as S, s, and U. Such individuals may develop a rare antibody, anti-Ena, directed against determinants on GPA. This antibody is capable of causing hemolytic transfusion reactions and hemolytic disease of the fetus and newborn. This case report describes a pregnant woman found to have anti-Ena. Molecular testing supported an Mk phenotype that was found in several members of her immediate family.

Predictors of Group Leaders' Perceptions of Parents' Initial and Dynamic Engagement in a Family Preventive Intervention.

Attendance and participant engagement are two consistent predictors of the efficacy of preventive interventions. Although both are typically measured and analyzed as static factors, evidence indicates patterns of attendance and participant engagement change over the course of intervention. Understanding parent characteristics that predict engagement may inform strategies to maximize parents' involvement thereby increasing intervention uptake and improving effects. This study examined whether parents' baseline characteristics predicted their engagement in a family-based intervention. The study was conducted with 515 caregivers participating in a randomized comparative trial testing the efficacy of The Mindfulness-Enhanced Strengthening Families Program 10-14 (MSFP 10-14) and The Strengthening Families Program: For Parents and Youth 10-14 (SFP 10-14). Facilitator ratings were used to measure parent engagement. Results indicated generally high levels of initial engagement with small, but a significant linear increase across the intervention. Parental education level and involvement with their youth predicted engagement in the first session, while parents' marital/relationship status, avoidance of conflict with their youth, involvement with their youth, and perceived parent-youth relationship quality at baseline predicted change in engagement. Results highlight engagement as a dynamic construct that changes over time and indicates potential variables that may help identify parents that may need support engaging in this intervention.

Evaluation of different testing methods for identification of RhIG in red blood cell antibody detection.

BACKGROUND: RhIG has had great success in protecting fetuses from potential harm; however, little work has been done to demonstrate how long RhIG reactivity is detected in the mother after administration when using common red blood cell antibody detection methods. STUDY DESIGN AND METHODS: A retrospective investigation was performed examining positive antibody identification panels due to RhIG. These panels were run on solid-phase (SP) testing. The time to a positive result, length of detection, and positive strength of reactivity (PSR) were evaluated. Additionally, a comparative study was performed evaluating how sensitive SP, gel (GT), and tube testing (TT) were at detecting RhIG using serially diluted plasma samples spiked with different RhIG formulas. RESULTS: Retrospectively, most antibody identification panels by SP were positive 3.5 months after RhIG administration and demonstrated a strong PSR. The longest recorded positive panel was present at 4.5 months. RhIG administered intramuscularly could not be detected until several hours after injection. The comparative study showed that SP was the most sensitive method while GT and TT were comparable to one another in detecting RhIG. SP also recorded strong PSR at very low concentrations of RhIG. GT and TT recorded weak PSR even with higher concentrations of RhIG. CONCLUSION: SP is the most sensitive testing method and has the ability to detect RhIG 4 to 5 months after administration. TT and GT have the ability to detect RhIG up to 3 to 4 months after administration. Different RhIG formulas may show slightly different lengths of detection.

Exploring the impact of a pre-service interprofessional educational intervention for school mental health trainees.

With collaborative interprofessional teams integral to school mental health (SMH) service delivery, pre-service educational strategies are needed to promote interprofessional collaboration among SMH trainees. The current study evaluated the effectiveness, feasibility, and acceptability of a pre-service, interprofessional SMH educational intervention focused on promoting the cross-disciplinary competencies essential for SMH practice. Eight SMH trainees participated in the study. Using a mixed-method design, quantitative pre/post competency data were collected via trainee self-report. Qualitative data were collected through a focus group and reflection journals. Results indicate that the intervention promoted competency in all areas, with significant growth in the provision of learning supports to youth. Key factors influencing intervention feasibility included time/scheduling, changing school team composition, and project coordination. Trainees' perceptions of the educational intervention were related to buy-in, clinical experience, and role flexibility. Implications for the design of pre-service interprofessional SMH education strategies are discussed.

Evaluating differential effects using regression interactions and regression mixture models.

Research increasingly emphasizes understanding differential effects. This paper focuses on understanding regression mixture models, a relatively new statistical methods for assessing differential effects by comparing results to using an interactive term in linear regression. The research questions which each model answers, their formulation, and their assumptions are compared using Monte Carlo simulations and real data analysis. The capabilities of regression mixture models are described and specific issues to be addressed when conducting regression mixtures are proposed. The paper aims to clarify the role that regression mixtures can take in the estimation of differential effects and increase awareness of the benefits and potential pitfalls of this approach. Regression mixture models are shown to be a potentially effective exploratory method for finding differential effects when these effects can be defined by a small number of classes of respondents who share a typical relationship between a predictor and an outcome. It is also shown that the comparison between regression mixture models and interactions becomes substantially more complex as the number of classes increases. It is argued that regression interactions are well suited for direct tests of specific hypotheses about differential effects and regression mixtures provide a useful approach for exploring effect heterogeneity given adequate samples and study design.

Feasibility and preliminary outcomes from a pilot study of an integrated health-mental health promotion program in school mental health services.

The prevalence of unmet health and mental health needs among youth has spurred the growing consensus to develop strategies that integrate services to promote overall well-being. This pilot study reports on the feasibility and outcomes of a theory-driven, family-focused, integrated health-mental health promotion program for underserved adolescents receiving school mental health services. Parent and adolescent assessments conducted prior to and following the brief, 6-session promotion program showed significant improvements in family support, youth self-efficacy, health behaviors, and mental health outcomes. Clinician reports contributed to a characterization of the feasibility, acceptability, and future recommendations for the integrated program.

Asymmetry in children's salivary cortisol and alpha-amylase in the context of marital conflict: links to children's emotional security and adjustment.

Recent research supports the promise of examining interactive models of physiological processes on children's adjustment. The present study investigates interactions between children's autonomic nervous system activity and adrenocortical functioning in the context of marital discord; specifically, testing models of concurrent responses proposed by Bauer et al. ([2002] Developmental and Behavioral Pediatrics 23:102-113) in the prediction of children's behavioral responses to conflict and adjustment. Asymmetry and symmetry in children's salivary alpha-amylase and cortisol were examined in 195 children (M age = 8 years) in response to viewing conflict vignettes. Results were partially consistent with an interactive model in the context of high marital discord; asymmetry among higher alpha-amylase and lower cortisol related to higher emotional insecurity and concurrent and subsequent maladjustment. In contrast, patterns of symmetrical responses were related to greater maladjustment for children exposed to lower levels of marital discord, supporting an additive model. Findings support the importance of a multisystem approach to investigating the adaptiveness of children's physiological stress responses, while also highlighting the value of considering physiological responses in the context of family risk.

Clinical Outcomes in Patients Who Received a One-Time Aminoglycoside Dose for Extended-Spectrum Beta-Lactamase-Producing Enterobacterales or Pseudomonas aeruginosa Cystitis.

The Infectious Diseases Society of America (IDSA) recommends a single dose of an aminoglycoside for uncomplicated cystitis caused by extended-spectrum beta-lactamase (ESBL)-producing Enterobacterales (ESBL-E) and difficult-to-treat Pseudomonas aeruginosa. However, there is very little recent clinical evidence to support this recommendation. The objective of this study was to evaluate the safety and efficacy of a single-dose aminoglycoside for cystitis caused by ESBL-E or Pseudomonas aeruginosa. This was a multicenter, retrospective, cohort study. Patients who received ≥3 days of standard of care were compared to patients who received a one-time dose of an aminoglycoside with or without a short course of effective therapy before. The primary outcome was the rate of relapse defined as requiring escalation of antibiotics or starting new antibiotic therapy within 14 days after the completion of antibiotics. A total of 66 patients were included in this study, with 33 patients in each arm. There were more males and complicated cystitis patients in the standard-of-care group. There was no difference found in the rate of relapse. The length of stay was significantly shorter in the aminoglycoside group (4.5 ± 4.4 days vs. 14.1 ± 10.1 days, p < 0.0001). A one-time dose of an aminoglycoside did not increase the risk of relapse and was associated with a shorter length of stay when used to treat cystitis caused by ESBL-E or Pseudomonas aeruginosa.

Continued Positive Job Search Experience for New Pathologists Seeking First Employment During the COVID-19 Pandemic (2020-2022).

CONTEXT.­: As pathologists retire and leave the field, it is critical to accurately capture employment trends for new-in-practice pathologists. There is always interest in the job market for newly graduated pathology trainees and prospective pathology trainees, but it is unclear how the COVID-19 pandemic may have affected the job search experience. OBJECTIVE.­: To provide an update on trends gleaned from a survey of pathology graduates' job search experiences during the COVID-19 pandemic. DESIGN.­: We analyzed data from an annual job search survey sent by the College of American Pathologists Graduate Medical Education Committee between 2020 and 2022 to College of American Pathologists junior members and fellows in practice 3 years or less actively looking for a nonfellowship position. Various indicators of the job search experience were compared year to year and with the data previously published 2017 to 2019 and 2012 to 2016. RESULTS.­: Analysis revealed continued positive trends between the 2020 to 2022 data and the data from 2017 to 2019 and 2012 to 2016. This includes continued ease in finding positions, continued availability of jobs in the subspecialty of choice, continued satisfaction with the positions accepted, and, notably, higher starting salaries. CONCLUSIONS.­: Despite the many challenges of the COVID-19 pandemic, job market trends for newly graduated pathology trainees continue to be favorable with respect to multiple indicators compared with 2 prior periods, 2017 to 2019 and 2012 to 2016.

Leadership perspectives on osteopathic medical school applicants to pathology residency training.

The number of graduating allopathic (MD) medical students matching into pathology has declined in recent years, while the number of osteopathic (DO) medical students has increased modestly, given the rapid expansion of osteopathic medical schools. Nonscholarly publications and materials on the internet often perpetuate negative perceptions of osteopathic physicians. Anecdotally, perspectives exist that some pathology residency programs are not DO-friendly; however, the reasons and how widespread an effect this might be are unclear. Our survey queried pathology chairs and residency program directors about their perceptions of osteopathic applicants and their knowledge of osteopathic medical school/training in general. This study utilized two similar, parallel surveys of pathology chairs and residency program directors with general questions structured around the perceptions and knowledge of both allopathic and osteopathic physicians, their medical training, and the consideration of osteopathic applicants to pathology residency. Pathology residency leaders acknowledge some negative perceptions of osteopathic physicians in the medical profession, the news, and social media. They also have some knowledge and perception gaps regarding osteopathic training and applicants, although experience with training osteopathic physicians as residents has been equivalent to that with allopathic physicians, and consideration appears to be fairly equal for osteopathic applicants. Even though negative perceptions of osteopathic physicians persist in news and social media, our surveys demonstrate that the leadership of pathology residency programs does not hold the same degree of bias and that DOs perform well in allopathic pathology residency programs without evidence of inferior outcomes.

Finite Mixtures for Simultaneously Modelling Differential Effects and Non-Normal Distributions.

Regression mixture models have been increasingly applied in the social and behavioral sciences as a method for identifying differential effects of predictors on outcomes. While the typical specification of this approach is sensitive to violations of distributional assumptions, alternative methods for capturing the number of differential effects have been shown to be robust. Yet, there is still a need to better describe differential effects that exist when using regression mixture models. The current study tests a new approach that uses sets of classes (called differential effects sets) to simultaneously model differential effects and account for non-normal error distributions. Monte Carlo simulations are used to examine the performance of the approach. The number of classes needed to represent departures from normality is shown to be dependent on the degree of skew. The use of differential effects sets reduced bias in parameter estimates. Applied analyses demonstrated the implementation of the approach for describing differential effects of parental health problems on adolescent body mass index using differential effects sets approach. Findings support the usefulness of the approach which overcomes the limitations of previous approaches for handling non-normal errors.

Using regression mixture models with non-normal data: Examining an ordered polytomous approach.

Mild to moderate skew in errors can substantially impact regression mixture model results; one approach for overcoming this includes transforming the outcome into an ordered categorical variable and using a polytomous regression mixture model. This is effective for retaining differential effects in the population; however, bias in parameter estimates and model fit warrant further examination of this approach at higher levels of skew. The current study used Monte Carlo simulations; three thousand observations were drawn from each of two subpopulations differing in the effect of X on Y. Five hundred simulations were performed in each of the ten scenarios varying in levels of skew in one or both classes. Model comparison criteria supported the accurate two class model, preserving the differential effects, while parameter estimates were notably biased. The appropriate number of effects can be captured with this approach but we suggest caution when interpreting the magnitude of the effects.

The phenotype of pathology residency program directors.

Pathology residency programs vary greatly across the United States. To the authors' knowledge, little is formally known about the "phenotype" or career pathways of pathology residency program directors (PDs). PDs, former PDs (FPDs), and associate PDs (APDs) were surveyed, aiming to address whether or not dominant phenotypes or pathways to graduate medical education leadership exist. Several trends emerged including: 76% Whites, 70% females, 15% MD/PhDs, and more junior faculty (33% being <5 years in practice, another 24% being in practice <10 years, and 41% assistant professors at time of first PD/APD appointment). Anatomic and clinical pathology-certified individuals represented 79%. Sixty-two percent of respondents were on a nontenure employment track, with only 18% indicating tenure track. For subspecialty focus, cytopathology (25%), transfusion medicine (16%), and hematopathology (14%) represented the most common subspecialties practiced. A majority (65%) had served as a chief resident during residency, and most (61%) of PDs had served as APDs first. Most (60%) had not served as fellowship director. Most (65%) had not participated in any education leadership training, with 27% having participated in certificate programs or other educational professional development. Thematic analysis of perceived key criterion in selection for the role was passion for education, demeanor, emotional intelligence, and willingness to serve the department. This information may influence training or experience pursued by individuals aspiring to pathology graduate medical education leadership, inform chairs on qualities to look for, and supplement future educational sessions of the Association of Pathology Chairs Program Directors Council.

The phenotype of academic pathology chairs.

Academic pathology departments across the United States vary greatly in terms of size, clinical workloads and research activity. It is therefore not surprising that their chairs may be an equally diverse group. However, to our knowledge, little is formally known about the "phenotype" (academic credentials, leadership background, and subspecialty focus) or career pathways of these individuals. Using a survey tool, this study sought to determine whether or not dominant phenotypes or trends. Several predominant findings emerged including: race (80% Whites), gender (68% males), dual degrees (41% MD/PhDs), years in practice (56% being in practice >15 years at time of first chair appointment), rank upon appointment (88% holding the rank of professor), and funded research (67% holding research funding). While Anatomic and Clinical Pathology (AP/CP) certified chairs represented 46% of the cohort, 30% were AP-only and another 10% were Anatomic Pathology and Neuropathology (AP/NP) certified. For subspecialty focus, neuropathology (13%) and molecular pathology (15%) were disproportionately represented compared to the general population of pathologists. Previous leadership roles on the path to chairmanship included vice chair (41%), division chief (39%), residency program director (29%), or fellowship director (27%). Many (41%) had not participated in any formal business or leadership training. This information may influence training or experience pursued by individuals aspiring to academic pathology leadership. It also highlights the challenges of suboptimal diversity in race and gender, as well as the professional backgrounds of academic pathology chairs and may suggest consideration of alternate pathways to leadership.