Physicians working with physician assistants and nurse practitioners: perceived effects on clinical practice.

Physicians in the United States are increasingly working with physician assistants (PAs) and nurse practitioners (NPs), but little is known about how they perceive working with PAs and NPs affects their clinical practice. We used a new national survey to examine physicians' perceptions of working with PAs and/or NPs on their patient volume, care quality, time use, and workload. Among our analytical sample of 5823 physicians, 59% reported working with PAs and/or NPs. Most reported that PAs and NPs positively affected their clinical practice. Among several findings, physicians working in medical schools and with higher incomes were more likely to indicate that PAs improve their clinical practices in all 4 aspects, while being in specialties with higher women's representation was associated with lower ratings for working with PAs. Native Hawaiian and Pacific Islander physicians and those with higher incomes were more likely to signify that NPs improved their clinical practices in all 4 aspects. These findings provide valuable insights, from the physicians' perspective, on care delivery reform.

Burnout Among Physicians With Disabilities.

This survey study examines reported experiences of burnout, including emotional exhaustion and depersonalization, among physicians with disability.

Carbon ion radiotherapy of hepatocellular carcinoma provides excellent local control: The prospective phase I PROMETHEUS trial.

Background & Aims: Inoperable hepatocellular carcinoma (HCC) can be treated by stereotactic body radiotherapy. However, carbon ion radiotherapy (CIRT) is more effective for sparing non-tumorous liver. High linear energy transfer could promote therapy efficacy. Japanese and Chinese studies on hypofractionated CIRT have yielded excellent results. Because of different radiobiological models and the different etiological spectrum of HCC, applicability of these results to European cohorts and centers remains questionable. The aim of this prospective study was to assess safety and efficacy and to determine the optimal dose of CIRT with active raster scanning based on the local effect model (LEM) I. Methods: CIRT was performed every other day in four fractions with relative biological effectiveness (RBE)-weighted fraction doses of 8.1-10.5 Gy (total doses 32.4-42.0 Gy [RBE]). Dose escalation was performed in five dose levels with at least three patients each. The primary endpoint was acute toxicity after 4 weeks. Results: Twenty patients received CIRT (median age 74.7 years, n = 16 with liver cirrhosis, Child-Pugh scores [CP] A5 [n = 10], A6 [n = 4], B8 [n = 1], and B9 [n = 1]). Median follow up was 23 months. No dose-limiting toxicities and no toxicities exceeding grade II occurred, except one grade III gamma-glutamyltransferase elevation 12 months after CIRT, synchronous to out-of-field hepatic progression. During 12 months after CIRT, no CP elevation occurred. The highest dose level could be applied safely. No local recurrence developed during follow up. The objective response rate was 80%. Median overall survival was 30.8 months (1/2/3 years: 75%/64%/22%). Median progression-free survival was 20.9 months (1/2/3 years: 59%/43%/43%). Intrahepatic progression outside of the CIRT target volume was the most frequent pattern of progression. Conclusions: CIRT of HCC yields excellent local control without dose-limiting toxicity. Impact and implications: To date, safety and efficacy of carbon ion radiotherapy for hepatocellular carcinoma have only been evaluated prospectively in Japanese and Chinese studies. The optimal dose and fractionation when using the local effect model for radiotherapy planning are unknown. The results are of particular interest for European and American particle therapy centers, but also of relevance for all specialists involved in the treatment and care of patients with hepatocellular carcinoma, as we present the first prospective data on carbon ion radiotherapy in hepatocellular carcinoma outside of Asia. The excellent local control should encourage further use of carbon ion radiotherapy for hepatocellular carcinoma and design of randomized controlled trials. Clinical Trials Registration: The study is registered at ClinicalTrials.gov (NCT01167374).

Re-evaluation of the methodology for estimating the US specialty physician workforce.

Increasing pursuit of subspecialized training has quietly revolutionized physician training, but the potential impact on physician workforce estimates has not previously been recognized. The Physicians Specialty Data Reports of the Association of American Medical Colleges, derived from specialty designations in the American Medical Association (AMA) Physician Professional Data (PPD), are the reference source for US physician workforce estimates; by 2020, the report for pathologists was an undercount of 39% when compared with the PPD. Most of the difference was due to the omission of pathology subspecialty designations. The rest resulted from reliance on only the first of the AMA PPD's 2 specialty data fields. Placement of specialty designation in these 2 fields is sensitive to sequence of training and is thus affected by multiple or intercalated (between years of residency training) fellowships. Both these phenomena have become progressively more common and are not unique to pathology. Our findings demonstrate the need to update definitions and methodology underlying estimates of the US physician workforce for pathology and suggest a like need in other specialties affected by similar trends.

NIBR-LTSi is a selective LATS kinase inhibitor activating YAP signaling and expanding tissue stem cells in vitro and in vivo.

The YAP/Hippo pathway is an organ growth and size regulation rheostat safeguarding multiple tissue stem cell compartments. LATS kinases phosphorylate and thereby inactivate YAP, thus representing a potential direct drug target for promoting tissue regeneration. Here, we report the identification and characterization of the selective small-molecule LATS kinase inhibitor NIBR-LTSi. NIBR-LTSi activates YAP signaling, shows good oral bioavailability, and expands organoids derived from several mouse and human tissues. In tissue stem cells, NIBR-LTSi promotes proliferation, maintains stemness, and blocks differentiation in vitro and in vivo. NIBR-LTSi accelerates liver regeneration following extended hepatectomy in mice. However, increased proliferation and cell dedifferentiation in multiple organs prevent prolonged systemic LATS inhibition, thus limiting potential therapeutic benefit. Together, we report a selective LATS kinase inhibitor agonizing YAP signaling and promoting tissue regeneration in vitro and in vivo, enabling future research on the regenerative potential of the YAP/Hippo pathway.

Durvalumab Plus Gemcitabine and Cisplatin in Patients with Advanced Biliary Tract Cancer: An Exploratory Analysis of Real-World Data.

BACKGROUND: The combination of gemcitabine and cisplatin (gem/cis) with the anti-PD-L1-antibody durvalumab was recently approved as first line therapy for biliary tract cancer (BTC) based on the results of the TOPAZ-1 trial. OBJECTIVE: We aim to analyse the feasibility and efficacy of the triple combination therapy in patients with BTC in a real-world setting and in correspondence with the genetic alterations of the cancer. METHODS: In this single-centre retrospective analysis, all patients with BTC and treated with durvalumab plus gem/cis from April 2022 to September 2023 were included. Survival and treatment response were investigated, within the context of the inclusion and exclusion criteria of TOPAZ-1 and in correspondence with genetic alterations of the cancer. RESULTS: In total, 35 patients, of which 51% met the inclusion criteria of the TOPAZ-1 trial, were analysed. Patients treated within TOPAZ-1 criteria did not have a significantly different median overall survival and progression free survival than the rest of the patients (10.3 versus 9.7 months and 5.3 versus 5 months, respectively). The disease control rate of patients within the TOPAZ-1 criteria was 61.1%, in comparison to 58.8% in the rest of patients. A total of 51 grade 3 and 4 adverse events were observed without significant differences in the subgroups. No specific correlating patterns of genetic alterations with survival and response were observed. CONCLUSIONS: The treatment of advanced patients with BTC with durvalumab and gem/cis, even beyond the inclusion criteria of the TOPAZ-1 trial, shows promising safety.

Telehealth Use and Access to Care for Underserved Populations Before and During the COVID-19 Pandemic.

While several studies have documented the rapid growth in telehealth visits during the pandemic, none have examined its relationship with greater overall access to care among vulnerable populations. We use Association of American Medical Colleges' Consumer Survey data to examine the relationship between access to care and telehealth use before and during the pandemic. The proportion of survey respondents who were always able to get medical care when needed was slightly lower in 2020 compared with prior years while telehealth use rose dramatically. Disparities in telehealth use for Medicaid beneficiaries and rural respondents disappeared during the pandemic, but remained for lower-income populations. Before the pandemic, telehealth use was associated with greater access, but not during the pandemic-when it appears to have become a substitute for in-person. After the pandemic, telehealth could once again be an opportunity to supplement access to care, if telehealth policies enacted during the pandemic are made permanent.

Black Representation in the Primary Care Physician Workforce and Its Association With Population Life Expectancy and Mortality Rates in the US.

Importance: Studies have suggested that greater primary care physician (PCP) availability is associated with better population health and that a diverse health workforce can improve care experience measures. However, it is unclear whether greater Black representation within the PCP workforce is associated with improved health outcomes among Black individuals. Objective: To assess county-level Black PCP workforce representation and its association with mortality-related outcomes in the US. Design, Setting, and Participants: This cohort study evaluated the association of Black PCP workforce representation with survival outcomes at 3 time points (from January 1 to December 31 each in 2009, 2014, and 2019) for US counties. County-level representation was defined as the ratio of the proportion of PCPs who identifed as Black divided by the proportion of the population who identified as Black. Analyses focused on between- and within-county influences of Black PCP representation and treated Black PCP representation as a time-varying covariate. Analysis of between-county influences examined whether, on average, counties with increased Black representation exhibited improved survival outcomes. Analysis of within-county influences assessed whether counties with higher-than-usual Black PCP representation exhibited enhanced survival outcomes during a given year of heightened workforce diversity. Data analyses were performed on June 23, 2022. Main Outcomes and Measures: Using mixed-effects growth models, the impact of Black PCP representation on life expectancy and all-cause mortality for Black individuals and on mortality rate disparities between Black and White individuals was assessed. Results: A combined sample of 1618 US counties was identified based on whether at least 1 Black PCP operated within a county during 1 or more time points (2009, 2014, and 2019). Black PCPs operated in 1198 counties in 2009, 1260 counties in 2014, and 1308 counties in 2019-less than half of all 3142 Census-defined US counties as of 2014. Between-county influence results indicated that greater Black workforce representation was associated with higher life expectancy and was inversely associated with all-cause Black mortality and mortality rate disparities between Black and White individuals. In adjusted mixed-effects growth models, a 10% increase in Black PCP representation was associated with a higher life expectancy of 30.61 days (95% CI, 19.13-42.44 days). Conclusions and Relevance: The findings of this cohort study suggest that greater Black PCP workforce representation is associated with better population health measures for Black individuals, although there was a dearth of US counties with at least 1 Black PCP during each study time point. Investments to build a more representative PCP workforce nationally may be important for improving population health.

Liquid biopsy-based protein biomarkers for risk prediction, early diagnosis, and prognostication of cholangiocarcinoma.

BACKGROUND & AIMS: Cholangiocarcinoma (CCA), heterogeneous biliary tumours with dismal prognosis, lacks accurate early diagnostic methods especially important for individuals at high-risk (i.e. those with primary sclerosing cholangitis [PSC]). Here, we searched for protein biomarkers in serum extracellular vesicles (EVs). METHODS: EVs from patients with isolated PSC (n = 45), concomitant PSC-CCA (n = 44), PSC who developed CCA during follow-up (PSC to CCA; n = 25), CCAs from non-PSC aetiology (n = 56), and hepatocellular carcinoma (n = 34) and healthy individuals (n = 56) were characterised by mass spectrometry. Diagnostic biomarkers for PSC-CCA, non-PSC CCA, or CCAs regardless of aetiology (Pan-CCAs) were defined and validated by ELISA. Their expression was evaluated in CCA tumours at a single-cell level. Prognostic EV biomarkers for CCA were investigated. RESULTS: High-throughput proteomics of EVs identified diagnostic biomarkers for PSC-CCA, non-PSC CCA, or Pan-CCA, and for the differential diagnosis of intrahepatic CCA and hepatocellular carcinoma, which were cross-validated by ELISA using total serum. Machine learning-based algorithms disclosed CRP/FIBRINOGEN/FRIL for the diagnosis of PSC-CCA (local disease [LD]) vs. isolated PSC (AUC = 0.947; odds ratio [OR] =36.9) and, combined with carbohydrate antigen 19-9, overpowers carbohydrate antigen 19-9 alone. CRP/PIGR/VWF allowed the diagnosis of LD non-PSC CCAs vs. healthy individuals (AUC = 0.992; OR = 387.5). It is noteworthy that CRP/FRIL accurately diagnosed LD Pan-CCA (AUC = 0.941; OR = 89.4). Levels of CRP/FIBRINOGEN/FRIL/PIGR showed predictive capacity for CCA development in PSC before clinical evidence of malignancy. Multi-organ transcriptomic analysis revealed that serum EV biomarkers were mostly expressed in hepatobiliary tissues, and single-cell RNA sequencing and immunofluorescence analysis of CCA tumours showed their presence mainly in malignant cholangiocytes. Multivariable analysis unveiled EV prognostic biomarkers, with COMP/GNAI2/CFAI and ACTN1/MYCT1/PF4V associated negatively and positively with patients' survival, respectively. CONCLUSIONS: Serum EVs contain protein biomarkers for the prediction, early diagnosis, and prognostication of CCA that are detectable using total serum, representing a tumour cell-derived liquid biopsy tool for personalised medicine. IMPACT AND IMPLICATIONS: The accuracy of current imaging tests and circulating tumour biomarkers for cholangiocarcinoma (CCA) diagnosis is far from satisfactory. Most CCAs are considered sporadic, although up to 20% of patients with primary sclerosing cholangitis (PSC) develop CCA during their lifetime, constituting a major cause of PSC-related death. This international study has proposed protein-based and aetiology-related logistic models with predictive, diagnostic, or prognostic capacities by combining two to four circulating protein biomarkers, moving a step forward into personalised medicine. These novel liquid biopsy tools may allow the (i) easy and non-invasive diagnosis of sporadic CCAs, (ii) identification of patients with PSC with higher risk for CCA development, (iii) establishment of cost-effective surveillance programmes for the early detection of CCA in high-risk populations (e.g. PSC), and (iv) prognostic stratification of patients with CCA, which, altogether, may increase the number of cases eligible for potentially curative options or to receive more successful treatments, decreasing CCA-related mortality.

Physicians' continuing medical education activities and satisfaction with their ability to stay current in medical information and practice: A cross-sectional study.

Background and Aims: Little is known about physicians' approaches to continuing medical education (CME) for continuing professional development despite the rapid evolution of CME offerings. We sought to identify the extent to which demographic, career, and experiential CME-activity variables were independently associated with physicians' satisfaction with their ability to stay current on medical information and practice. Methods: Using the 2019 Association of American Medical Colleges' National Sample Survey of Physicians data, we ran multivariable logistic regression models examining demographic, career, and experiential (participation in 11 CME activities in the past year) variables for their associations with physicians' satisfaction (satisfied vs. not satisfied/neutral) with their ability to stay current. Results: Of 5926 respondents, 90% (5341/5926) were satisfied with their ability to stay current. Significant (each two-sided p < 0.05) predictors of respondents who were satisfied included (among others) a surgery specialty (vs. primary care; adjusted odds ratio [AOR] = 1.41, 95% confidence interval [CI] = 1.06-1.88), an academic affiliation (vs. none; AOR = 1.35, 95% CI = 1.10-1.66), and participation (vs. no participation) in each of professional meetings (AOR = 1.31, 95% CI = 1.07-1.60) and journal-based CME (AOR = 1.29, 95% CI = 1.07-1.56). Respondents who self-identified as a race/ethnicity underrepresented in medicine (vs. white; AOR = 0.68, 95% CI = 0.48-0.97) and were between ages 40 and 49 years (vs. 50-59; AOR = 0.74; 95% CI = 0.58-0.94) were less likely to be satisfied. Gender, board certification status, and medical degree type did not independently predict satisfaction (each p > 0.05). Conclusion: We observed independent associations between physicians' satisfaction with their ability to stay current in medical information and practice and each specialty, academic affiliation, race/ethnicity, age, and CME activity type (for 2 of 11 examined). Findings may be relevant to organizations and institutions designing and implementing CME activities in the current context of COVID-19 pandemic-related in-person activity limitations and can inform targeted interventions addressing differences in the satisfaction we observed to better support physicians' CME.

Specialty Gender Composition and Prevalence of Physician Harassment.

Background: Women physicians remain a minority in most medical specialties and are at higher risk of workplace harassment than men. This research examines the relationship between a medical specialty's gender composition and physicians' workplace harassment experience. Materials and Methods: We used the Association of American Medical Colleges' National Sample Survey of Physicians 2019 (n = 6000). Participants self-reported harassment experiences in the 12 months preceding the survey, including threats of physical harm, physical harm, offensive and sexist remarks, and unwanted sexual advances from patients and coworkers. We used data from the American Medical Association to determine medical specialties' gender composition. We used multiple logistic regression to assess the relationship between harassment experiences and specialty gender composition. Results: Women and men physicians reported threats and harm at similar rates. However, women reported offensive, sexist remarks and unwanted sexual advances more frequently. We found greater representation of women within a specialty is associated with a lower prevalence of harassment experienced by men and women physicians (e.g., threats of physical harm, odds ratio [OR] = 0.973 [women] and 0.984 [men], and unwanted sexual advances, OR = 0.976 [women] and 0.981 [men]). Also, as women's representation in a specialty increases, the gender gap in experiences of most types of harassment decreases. Conclusions: Greater representation of women within a medical specialty is associated with a safer environment for both men and women physicians and narrower gender gaps in harassment experience. Our findings support efforts to increase gender diversity across the specialties and illuminate the dire need for antiharassment solutions in specialties with low women's representation.

Patient And Coworker Mistreatment Of Physicians With Disabilities.

Physicians from underrepresented groups are at greater risk of experiencing mistreatment from coworkers and patients, including offensive remarks, physical harm, threats of physical harm, and unwanted sexual advances. These can have far-reaching negative consequences for the physicians' personal and professional lives. This study used data from a nationally representative sample of physicians to examine workplace mistreatment experienced by physicians with disabilities and determine whether physicians with disabilities are more likely to experience mistreatment in their workplace than physicians without disabilities. Compared with their nondisabled peers, physicians with disabilities had a significantly higher likelihood of experiencing every type of mistreatment from both patients and coworkers. Our findings suggest the need for disability-focused anti-mistreatment policies and practices.

Precision oncology for intrahepatic cholangiocarcinoma in clinical practice.

BACKGROUND: Advanced cholangiocarcinoma has a poor prognosis. Molecular targeted approaches have been proposed for patients after progression under first-line chemotherapy treatment. Here, molecular profiling of intrahepatic cholangiocarcinoma in combination with a comprehensive umbrella concept was applied in a real-world setting. METHODS: In total, 101 patients received molecular profiling and matched treatment based on interdisciplinary tumour board decisions in a tertiary care setting. Parallel DNA and RNA sequencing of formalin-fixed paraffin-embedded tumour tissue was performed using large panels. RESULTS: Genetic alterations were detected in 77% of patients and included gene fusions in 21 patients. The latter recurrently involved the FGFR2 and the NRG1 gene loci. The most commonly altered genes were BAP1, ARID1A, FGFR2, IDH1, CDKN2A, CDKN2B, PIK3CA, TP53, ATM, IDH2, BRAF, SMARCA4 and FGFR3. Molecular targets were detected in 59% of patients. Of these, 32% received targeted therapy. The most relevant reason for not initiating therapy was the deterioration of performance status. Patients receiving a molecular-matched therapy showed a significantly higher survival probability compared to patients receiving conventional chemotherapy only (HR: 2.059, 95% CI: 0.9817-4.320, P < 0.01). CONCLUSIONS: Molecular profiling can be successfully translated into clinical treatment of intrahepatic cholangiocarcinoma patients and is associated with prolonged survival of patients receiving a molecular-matched treatment.

Do physicians with academic affiliation have lower burnout and higher career-related satisfaction?

BACKGROUND: Physicians report increasing burnout and declining career-related satisfaction, negatively impacting physician well-being and patient care quality. For physicians with academic affiliations, these issues can directly affect future generations of physicians. Previous research on burnout and satisfaction has focused on factors like work hours, gender, race, specialty, and work setting. We seek to contribute to the literature by examining these associations while controlling for demographic, family, and work-related characteristics. Furthermore, we aim to determine any differential effects of faculty rank. METHODS: We analyzed data on practicing physicians in the U.S. from the Association of American Medical College's (AAMC) 2019 National Sample Survey of Physicians (NSSP,) which includes variables adapted from the Maslach Burnout Inventory. We used ordinal logistic regressions to explore associations between academic affiliation and burnout. We conducted a factor analysis to consolidate satisfaction measures, then examined their relationship with academic affiliation using multivariate linear regressions. All regression analyses controlled for physicians' individual, family, and work characteristics. RESULTS: Among respondents (n = 6,000), 40% were affiliated with academic institutions. Physicians with academic affiliations had lower odds than their non-affiliated peers for feeling emotional exhaustion every day (Odds Ratio [OR] 0.87; 95% CI: 0.79-0.96; P < .001) and reported greater career-related satisfaction (0.10-0.14, SE, 0.03, 0.02; P < .001). The odds of feeling burnt out every day were higher for associate professors, (OR 1.57; 95% CI: 1.22-2.04; P < .001) assistant professors, (OR 1.64; 95% CI: 1.28-2.11; P < .001), and instructors (OR 1.72; 95% CI, 1.29-2.29; P < .001), relative to full professors. CONCLUSIONS: Our findings contribute to the literature on burnout and career satisfaction by exploring their association with academic affiliation and examining how they vary among different faculty ranks. An academic affiliation may be an essential factor in keeping physicians' burnout levels lower and career satisfaction higher. It also suggests that policies addressing physician well-being are not "one size fits all" and should consider factors such as academic affiliation, faculty rank and career stage, gender identity, the diversity of available professional opportunities, and institutional and social supports. For instance, department chairs and administrators in medical institutions could protect physicians' time for academic activities like teaching to help keep burnout lower and career satisfaction higher.

When Physicians Marry Physicians: Gender Inequities in Work Hours and Income.

Background: Physicians marry other physicians at a high rate, and theories suggest being married to a physician (MTP) may impact a physician's productivity in different ways. This impact may differ by gender and rurality of work location. This study empirically examines MTP's effects by gender and rurality of physicians' work location. Data and Method: This study uses both the Association of American Medical Colleges (AAMC) 2019 National Sample Survey of Physicians (n = 6,000) and the American Community Survey data 2006-2017 (n = 72,900). We conducted cross-sectional, multivariate analysis with interaction terms between MTP, gender, and rurality, controlling for various work and personal characteristics. Results: A female MTP physician works 2.9 fewer hours (95% confidence interval [CI]: -4.3 to -1.4, p = 0.000) per week than a female non-MTP physician, while a male MTP physician's weekly work hours are not significantly different from a male non-MTP physician's. Compared to non-MTP counterparts, male MTP physicians are more likely to have on-call work, and female MTP physicians are much less likely to have on-call work; male MTP physicians earn $6,635 more (95% CIs: $1,613-$11,657, p = 0.010) per year, while female MTP female physicians earn $5,018 less (95% CIs: -$10,684 to $648, p = 0.083). Furthermore, the MTP-associated gender differential effects are more prominent for physicians in rural areas than in urban areas. Results from both datasets are highly comparable. Conclusions: MTP's effects widen the gender gap in physicians' work hours, on-call probability, and earnings. Understanding and examining the mechanisms for these gender differential effects are essential to promote equity in the physician workforce.

YAP/TAZ and ATF4 drive resistance to Sorafenib in hepatocellular carcinoma by preventing ferroptosis.

Understanding the mechanisms underlying evasive resistance in cancer is an unmet medical need to improve the efficacy of current therapies. In this study, a combination of shRNA-mediated synthetic lethality screening and transcriptomic analysis revealed the transcription factors YAP/TAZ as key drivers of Sorafenib resistance in hepatocellular carcinoma (HCC) by repressing Sorafenib-induced ferroptosis. Mechanistically, in a TEAD-dependent manner, YAP/TAZ induce the expression of SLC7A11, a key transporter maintaining intracellular glutathione homeostasis, thus enabling HCC cells to overcome Sorafenib-induced ferroptosis. At the same time, YAP/TAZ sustain the protein stability, nuclear localization, and transcriptional activity of ATF4 which in turn cooperates to induce SLC7A11 expression. Our study uncovers a critical role of YAP/TAZ in the repression of ferroptosis and thus in the establishment of Sorafenib resistance in HCC, highlighting YAP/TAZ-based rewiring strategies as potential approaches to overcome HCC therapy resistance.

The Association of American Medical Colleges' Local Area Physician Workforce Modeling Project.

Physician workforce planning must address multiple concerns such as having sufficient numbers and adequate geographic distribution of physicians and pressures for physicians to adapt to new models of care and payment. Though there are national workforce planning tools, planning tools for local areas have been scarce. This article describes a dynamic simulation model developed as a pilot project to support physician workforce planning in 2 metropolitan areas, Cleveland and Albuquerque (February 2014-June 2016). This model serves as a prototype for planning tools that could be used by medical educators and local health systems to project the effect of different policies on physician supply and demand. System dynamics and group model building approaches were used to develop the model with the participation of local stakeholders to create the model's causal structure. The model included determinants of the demand for primary and specialty care for the local population and projected the effects of births and deaths, aging, level of chronic illness present, and migration on demand. Physician supply was disaggregated by primary versus specialty care, age, sex, and work setting and projected based on completions of local residency programs, physician migration in and out of the area, and retirements. Feedback relationships between supply and demand (e.g., adequacy of care affecting the distribution of chronic illnesses, demand for care influencing in- and out-migration of physicians) were also included and had important effects on the results produced by the model. Scenarios were simulated that projected increased demand for care (e.g., through expanded insurance coverage) and increased supply (e.g., through practice incentives to encourage in-migration) and a combination of these. An expanded advanced practice registered nurse and physician assistant capacity scenario was also simulated. In Albuquerque, the combination scenario yielded the greatest increases in local physician supply.

HBV-infection rate and long-term outcome after liver-transplantation of anti-HBc-positive liver-grafts to HBV-naïve recipients: A retrospective study.

BACKGROUND: Anti-HBc only positive liver grafts may be suitable for HBV-naive recipients insofar as an appropriate infection prophylaxis is performed. Therefore, we investigated the effect of prophylactic regimens on HBV infection prevention and long-term outcome of anti-HBc-positive graft recipients. PATIENTS AND METHODS: This retrospective monocenter study consisted of a cohort of 1912 patients who underwent deceased donor liver transplantation at our transplant center between June 1987 and July 2019. 81 HBV-naïve patients after reception of an anti-HBc-positive liver-graft and consecutive HBV prophylaxis were selected for further examination. HBV infection rate and host- and graft-survival rates were compared to a matched control group consisting of 162 HBV-naïve patients after reception of anti-HBc-negative grafts. Pharmaceutical HBV prophylaxis included: only HBIG, only NUCs, or combined HBIG and NUCs. RESULTS: Compared to control cases of HBV-naïve anti-HBc-negative graft recipients, no differences in host- and graft-survival rate were determined.13 of 81 anti-HBc-positive graft recipients (16%) developed HBV-infection after liver transplantation. No patient suffered from HBV infection after receiving modern NUCs. Survival analysis showed no statistical differences between patients with and without infection concerning host- and graft-survival. CONCLUSION: Especially in times of organ shortage, anti-HBc-positive liver grafts may be useful for liver transplantation in HBV-naïve recipients. Efficient prophylactic regimens can prevent HBV-infection.