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1.
Blood Adv ; 2024 Mar 19.
Artículo en Inglés | MEDLINE | ID: mdl-38502227

RESUMEN

Several single-arm studies have explored the inclusion of brentuximab vedotin (BV) in salvage chemotherapy followed by autologous stem-cell transplantation (ASCT) for relapsed/refractory (R/R) classical Hodgkin lymphoma (cHL). However, no head-to-head comparisons with standard salvage chemotherapy have been performed. This study presents a propensity score-matched analysis encompassing individual patient data from ten clinical trials to evaluate the impact of BV in transplant-eligible R/R cHL patients. We included 768 patients, of whom 386 were treated with BV +/- chemotherapy (BV-cohort), while 382 received chemotherapy alone (chemo-cohort). Propensity score matching resulted in balanced cohorts of 240 patients each. No significant differences were observed in pre-ASCT complete metabolic response (CMR) rates (p=0.69) or progression free survival (PFS) (p=0.14) between the BV- and chemo-cohorts. However, patients with relapsed disease had a significantly better 3-year PFS of 80% versus 70% in the BV- versus chemo-cohort (p=0.02), while there was no difference for primary refractory patients (56% versus 62%, respectively; p=0.67). Patients with stage IV disease achieved a significantly better 3-year PFS in the BV-cohort (p=0.015). Post-ASCT PFS was comparable for patients achieving a CMR after BV monotherapy and those receiving BV followed by sequential chemotherapy (p=0.24). While 3-year overall survival was higher in the BV-cohort (92% versus 80%, p<0.001, respectively), this is likely attributed to the use of other novel therapies in later lines for patients experiencing progression, given that studies in the BV-cohort were conducted more recently. In conclusion, BV +/- salvage chemotherapy appears to enhance PFS in relapsed but not primary refractory cHL patients.

2.
Blood Adv ; 7(21): 6732-6743, 2023 11 14.
Artículo en Inglés | MEDLINE | ID: mdl-37722357

RESUMEN

Investigating prognostic factors in patients with relapsed or primary refractory classical Hodgkin lymphoma (R/R cHL) is essential to optimize risk-adapted treatment strategies. We built a prognostic model using baseline quantitative 18F-fluorodeoxyglucose positron emission tomography (PET) radiomics features and clinical characteristics to predict the progression-free survival (PFS) among patients with R/R cHL treated with salvage chemotherapy followed by autologous stem cell transplantation. Metabolic tumor volume and several novel radiomics dissemination features, representing interlesional differences in distance, volume, and standard uptake value, were extracted from the baseline PET. Machine learning using backward selection and logistic regression were applied to develop and train the model on a total of 113 patients from 2 clinical trials. The model was validated on an independent external cohort of 69 patients. In addition, we validated 4 different PET segmentation methods to calculate radiomics features. We identified a subset of patients at high risk for progression with significant inferior 3-year PFS outcomes of 38.1% vs 88.4% for patients in the low-risk group in the training cohort (P < .001) and 38.5% vs 75.0% in the validation cohort (P = .015), respectively. The overall survival was also significantly better in the low-risk group (P = .022 and P < .001). We provide a formula to calculate a risk score for individual patients based on the model. In conclusion, we developed a prognostic model for PFS combining radiomics and clinical features in a large cohort of patients with R/R cHL. This model calculates a PET-based risk profile and can be applied to develop risk-stratified treatment strategies for patients with R/R cHL. These trials were registered at www.clinicaltrials.gov as #NCT02280993, #NCT00255723, and #NCT01508312.


Asunto(s)
Trasplante de Células Madre Hematopoyéticas , Enfermedad de Hodgkin , Humanos , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Fluorodesoxiglucosa F18 , Enfermedad de Hodgkin/terapia , Enfermedad de Hodgkin/tratamiento farmacológico , Tomografía de Emisión de Positrones/métodos , Pronóstico , Supervivencia sin Progresión , Trasplante Autólogo , Ensayos Clínicos como Asunto
3.
Alzheimers Dement ; 19(8): 3295-3305, 2023 08.
Artículo en Inglés | MEDLINE | ID: mdl-36749936

RESUMEN

IMPORTANCE: With an aging population, it is necessary to systematically examine variation in costs and use of Medicare services by dementia subtype. We provide the first national estimates for dementia by subtype, and the respective Medicare costs and use. METHODS: We analyzed Medicare fee-for-service (FFS) claims from 2017 through 2019. The sample included 41 million beneficiaries: 727,700 beneficiaries with a new dementia diagnosis in 2017. We calculated descriptive statistics and conducted generalized linear regression models by subtype of dementia. RESULTS: Annual Medicare costs for beneficiaries with dementia ranged from $22,840 for frontotemporal dementia to $44,896 for vascular dementia compared to $9,034 for beneficiaries without dementia. Comparing beneficiaries across dementia subtypes, the greatest differences were in the use of home health and hospice care. CONCLUSIONS: These analyses demonstrate substantial heterogeneity across dementia subtypes, which will be important in developing models of care that improve value for people with dementia.


Asunto(s)
Demencia Vascular , Medicare , Humanos , Anciano , Estados Unidos , Planes de Aranceles por Servicios , Estudios Retrospectivos
4.
Leukemia ; 36(12): 2853-2862, 2022 12.
Artículo en Inglés | MEDLINE | ID: mdl-36241696

RESUMEN

Risk-stratified treatment strategies have the potential to increase survival and lower toxicity in relapsed/refractory classical Hodgkin lymphoma (R/R cHL) patients. This study investigated the prognostic value of serum (s)TARC, vitamin D and lactate dehydrogenase (LDH), TARC immunohistochemistry and quantitative PET parameters in 65 R/R cHL patients who were treated with brentuximab vedotin (BV) and DHAP followed by autologous stem-cell transplantation (ASCT) within the Transplant BRaVE study (NCT02280993). At a median follow-up of 40 months, the 3-year progression free survival (PFS) was 77% (95% CI: 67-88%) and the overall survival was 95% (90-100%). Significant adverse prognostic markers for progression were weak/negative TARC staining of Hodgkin Reed-Sternberg cells in the baseline biopsy, and a high standard uptake value (SUV)mean or SUVpeak on the baseline PET scan. After one cycle of BV-DHAP, sTARC levels were strongly associated with the risk of progression using a cutoff of 500 pg/ml. On the pre-ASCT PET scan, SUVpeak was highly prognostic for progression post-ASCT. Vitamin D, LDH and metabolic tumor volume had low prognostic value. In conclusion, we established the prognostic impact of sTARC, TARC staining, and quantitative PET parameters for R/R cHL, allowing the use of these parameters in prospective risk-stratified clinical trials. Trial registration: NCT02280993.


Asunto(s)
Enfermedad de Hodgkin , Inmunoconjugados , Humanos , Brentuximab Vedotina , Enfermedad de Hodgkin/diagnóstico por imagen , Enfermedad de Hodgkin/tratamiento farmacológico , Pronóstico , Estudios Prospectivos , Trasplante de Células Madre , Recurrencia Local de Neoplasia/diagnóstico por imagen , Recurrencia Local de Neoplasia/tratamiento farmacológico , Inmunoconjugados/uso terapéutico , Tomografía de Emisión de Positrones , Vitamina D/uso terapéutico
5.
EJHaem ; 3(3): 908-912, 2022 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-36051072

RESUMEN

Blood-based biomarkers are gaining interest for response evaluation in classical Hodgkin lymphoma (cHL). However, it is unknown how blood-based biomarkers relate to quantitative 18F-FDG-PET features. We correlated extracellular vesicle-associated miRNAs (EV-miRNA), serum TARC, and complete blood count (CBC) with PET features (e.g., metabolic tumor volume [MTV], dissemination and intensity features) in 30 cHL patients at baseline. EV-miR127-3p, EV-miR24-3p, sTARC, and several CBC parameters showed weak to strong correlations with MTV and dissemination features, but not with intensity features. Two other EV-miRNAs only showed weak correlations with PET features. Therefore, blood-based biomarkers may be complementary to PET features, which warrants further exploration of combining these biomarkers in prognostic models.

6.
J Nucl Med ; 63(9): 1424-1430, 2022 09.
Artículo en Inglés | MEDLINE | ID: mdl-34992152

RESUMEN

Consensus about a standard segmentation method to derive metabolic tumor volume (MTV) in classical Hodgkin lymphoma (cHL) is lacking, and it is unknown how different segmentation methods influence quantitative PET features. Therefore, we aimed to evaluate the delineation and completeness of lesion selection and the need for manual adaptation with different segmentation methods, and to assess the influence of segmentation methods on the prognostic value of MTV, intensity, and dissemination radiomics features in cHL patients. Methods: We analyzed a total of 105 18F-FDG PET/CT scans from patients with newly diagnosed (n = 35) and relapsed/refractory (n = 70) cHL with 6 segmentation methods: 2 fixed thresholds on SUV4.0 and SUV2.5, 2 relative methods of 41% of SUVmax (41max) and a contrast-corrected 50% of SUVpeak (A50P), and 2 combination majority vote (MV) methods (MV2, MV3). Segmentation quality was assessed by 2 reviewers on the basis of predefined quality criteria: completeness of selection, the need for manual adaptation, and delineation of lesion borders. Correlations and prognostic performance of resulting radiomics features were compared among the methods. Results: SUV4.0 required the least manual adaptation but tended to underestimate MTV and often missed small lesions with low 18F-FDG uptake. SUV2.5 most frequently included all lesions but required minor manual adaptations and generally overestimated MTV. In contrast, few lesions were missed when using 41max, A50P, MV2, and MV3, but these segmentation methods required extensive manual adaptation and overestimated MTV in most cases. MTV and dissemination features significantly differed among the methods. However, correlations among methods were high for MTV and most intensity and dissemination features. There were no significant differences in prognostic performance for all features among the methods. Conclusion: A high correlation existed between MTV, intensity, and most dissemination features derived with the different segmentation methods, and the prognostic performance is similar. Despite frequently missing small lesions with low 18F-FDG avidity, segmentation with a fixed threshold of SUV4.0 required the least manual adaptation, which is critical for future research and implementation in clinical practice. However, the importance of small, low 18F-FDG-avidity lesions should be addressed in a larger cohort of cHL patients.


Asunto(s)
Fluorodesoxiglucosa F18 , Enfermedad de Hodgkin , Fluorodesoxiglucosa F18/metabolismo , Enfermedad de Hodgkin/diagnóstico por imagen , Humanos , Tomografía Computarizada por Tomografía de Emisión de Positrones/métodos , Tomografía de Emisión de Positrones/métodos , Estudios Retrospectivos , Carga Tumoral
7.
Hematology Am Soc Hematol Educ Program ; 2021(1): 240-246, 2021 12 10.
Artículo en Inglés | MEDLINE | ID: mdl-34889399

RESUMEN

Approximately 10% to 30% of patients with classical Hodgkin lymphoma (cHL) develop relapsed or refractory (R/R) disease. Of those patients, 50% to 60% show long-term progression-free survival after standard salvage chemotherapy followed by high-dose chemotherapy (HDCT) and autologous stem cell transplant (ASCT). In the past decade, novel therapies have been developed, such as the CD30-directed antibody-drug conjugate brentuximab vedotin and immune checkpoint inhibitors, which have greatly extended the treatment possibilities for patients with R/R cHL. Several phase 1/2 clinical trials have shown promising results of these new drugs as monotherapy or in combination with chemotherapy, but unfortunately, very few randomized phase 3 trials have been performed in this setting, making it difficult to give evidence-based recommendations for optimal treatment sequencing. Two important goals for the improvement in the treatment of R/R cHL can be identified: (1) increasing long-term progression-free and overall survival by optimizing risk-adapted treatment and (2) decreasing toxicity in patients with a low risk of relapse of disease by evaluating the need for HDCT/ASCT in these patients. In this review, we discuss treatment options for patients with R/R cHL in different settings: patients with a first relapse, primary refractory disease, and in patients who are ineligible or unfit for ASCT. Results of clinical trials investigating novel therapies or strategies published over the past 5 years are summarized.


Asunto(s)
Enfermedad de Hodgkin/terapia , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Ensayos Clínicos como Asunto , Trasplante de Células Madre Hematopoyéticas/métodos , Enfermedad de Hodgkin/radioterapia , Humanos , Recurrencia Local de Neoplasia/terapia , Terapia Recuperativa/métodos , Trasplante Autólogo/métodos
8.
J Extracell Vesicles ; 10(9): e12121, 2021 07.
Artículo en Inglés | MEDLINE | ID: mdl-34295456

RESUMEN

Minimally-invasive tools to assess tumour presence and burden may improve clinical management. FDG-PET (metabolic) imaging is the current gold standard for interim response assessment in patients with classical Hodgkin Lymphoma (cHL), but this technique cannot be repeated frequently. Here we show that microRNAs (miRNA) associated with tumour-secreted extracellular vesicles (EVs) in the circulation of cHL patients may improve response assessment. Small RNA sequencing and qRT-PCR reveal that the relative abundance of cHL-expressed miRNAs, miR-127-3p, miR-155-5p, miR-21-5p, miR-24-3p and let-7a-5p is up to hundred-fold increased in plasma EVs of cHL patients pre-treatment when compared to complete metabolic responders (CMR). Notably, in partial responders (PR) or treatment-refractory cases (n = 10) the EV-miRNA levels remain elevated. In comparison, tumour specific copy number variations (CNV) were detected in cell-free DNA of 8 out of 10 newly diagnosed cHL patients but not in patients with PR. Combining EV-miR-127-3p and/or EV-let-7a-5p levels, with serum TARC (a validated protein cHL biomarker), increases the accuracy for predicting PET-status (n = 129) to an area under the curve of 0.93 (CI: 0.87-0.99), 93.5% sensitivity, 83.8/85.0% specificity and a negative predictive value of 96%. Thus the level of tumour-associated miRNAs in plasma EVs is predictive of metabolic tumour activity in cHL patients. Our findings suggest that plasma EV-miRNA are useful for detection of small residual lesions and may be applied as serial response prediction tool.


Asunto(s)
Enfermedad de Hodgkin/sangre , Enfermedad de Hodgkin/diagnóstico , MicroARNs/sangre , Tomografía de Emisión de Positrones , Adulto , Anciano , Biomarcadores de Tumor/sangre , Línea Celular Tumoral , Estudios de Cohortes , Variaciones en el Número de Copia de ADN , Vesículas Extracelulares , Fluorodesoxiglucosa F18 , Enfermedad de Hodgkin/genética , Humanos , Estudios Longitudinales , Masculino , Persona de Mediana Edad , Tomografía de Emisión de Positrones/métodos , Valor Predictivo de las Pruebas , Estudios Prospectivos , Adulto Joven
9.
JAMA Netw Open ; 4(3): e212382, 2021 03 01.
Artículo en Inglés | MEDLINE | ID: mdl-33739431

RESUMEN

Importance: The 2017-2018 influenza season in the US was marked by a high severity of illness, wide geographic spread, and prolonged duration compared with recent previous seasons, resulting in increased strain throughout acute care hospital systems. Objective: To characterize self-reported experiences and views of hospital capacity managers regarding the 2017-2018 influenza season in the US. Design, Setting, and Participants: In this qualitative study, semistructured telephone interviews were conducted between April 2018 and January 2019 with a random sample of capacity management administrators responsible for throughput and hospital capacity at short-term, acute care hospitals throughout the US. Main Outcomes and Measures: Each participant's self-reported experiences and views regarding high patient volumes during the 2017-2018 influenza season, lessons learned, and the extent of hospitals' preparedness planning for future pandemic events. Interviews were recorded and transcribed and then analyzed using thematic content analysis. Outcomes included themes and subthemes. Results: A total of 53 key hospital capacity personnel at 53 hospitals throughout the US were interviewed; 39 (73.6%) were women, 48 (90.6%) had a nursing background, and 29 (54.7%) had been in the occupational role for more than 4 years. Participants' experiences were categorized into several domains: (1) perception of strain, (2) effects of influenza and influenza-like illness on staff and patient care, (3) immediate staffing and capacity responses to influenza and influenza-like illness, and (4) future staffing and capacity preparedness for influenza and influenza-like illness. Participants reported experiencing perceived strain associated with concerns about preparedness for seasonal influenza and influenza-like illness as well as concerns about staffing, patient care, and capacity, but future pandemic planning within hospitals was not reported as being a high priority. Conclusions and Relevance: The findings of this qualitative study suggest that during the 2017-2018 influenza season, there were systemic vulnerabilities as well as a lack of hospital preparedness planning for future pandemics at US hospitals. These issues should be addressed given the current coronavirus disease 2019 pandemic.


Asunto(s)
Creación de Capacidad , Gestión del Cambio , Defensa Civil/organización & administración , Planificación en Desastres/métodos , Brotes de Enfermedades , Gripe Humana , COVID-19/epidemiología , COVID-19/prevención & control , Creación de Capacidad/métodos , Creación de Capacidad/organización & administración , Brotes de Enfermedades/prevención & control , Brotes de Enfermedades/estadística & datos numéricos , Fuerza Laboral en Salud/organización & administración , Humanos , Gripe Humana/epidemiología , Gripe Humana/prevención & control , Gripe Humana/terapia , Administración de Personal/métodos , Investigación Cualitativa , SARS-CoV-2 , Estaciones del Año , Índice de Severidad de la Enfermedad , Estados Unidos/epidemiología
10.
Haematologica ; 106(4): 1129-1137, 2021 04 01.
Artículo en Inglés | MEDLINE | ID: mdl-32273476

RESUMEN

Achieving a metabolic complete response (mCR) before high-dose chemotherapy (HDC) and autologous peripheral blood stem-cell transplant (auto-PBSCT) predicts progression free survival (PFS) in relapsed/refractory classical Hodgkin lymphoma (R/R cHL). We added brentuximab vedotin (BV) to DHAP to improve the mCR rate. In a Phase I dose-escalation part in 12 patients, we showed that BV-DHAP is feasible. This Phase II study included 55 R/R cHL patients (23 primary refractory). Treatment consisted of three 21-day cycles of BV 1.8 mg/kg on day 1, and DHAP (dexamethasone 40mg days 1-4, cisplatin 100mg/m2; day 1 and cytarabine 2x2g/m2; day 2). Patients with a metabolic partial response (mPR) or mCR proceeded to HDC/auto-PBSCT. Based on independent central FDG-PET-CT review, 42 of 52 evaluable patients (81% [95% CI: 67-90]) achieved an mCR before HDC/auto-PBSCT, five had an mPR and five had progressive disease (three were not evaluable). After HDC/auto-PBSCT, four patients with an mPR converted to an mCR. The 2-year PFS was 74% [95% CI: 63-86], and the overall survival 95% [95% CI: 90-100]. Toxicity was manageable and mainly consisted of grade 3/4 hematological toxicity, fever, nephrotoxicity, ototoxicity (grade 1/2) and transiently elevated liver enzymes during BV-DHAP. Eighteen patients developed new onset peripheral neuropathy (maximum grade 1/2) and all recovered. In conclusion, BV-DHAP is a very effective salvage regimen in R/R cHL patients, but patients should be monitored closely for toxicity. ClinicalTrials.gov identifier: NCT02280993.


Asunto(s)
Enfermedad de Hodgkin , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Brentuximab Vedotina , Cisplatino , Citarabina/uso terapéutico , Dexametasona/uso terapéutico , Enfermedad de Hodgkin/tratamiento farmacológico , Humanos , Recurrencia Local de Neoplasia , Tomografía Computarizada por Tomografía de Emisión de Positrones , Recurrencia , Terapia Recuperativa , Resultado del Tratamiento
11.
Leukemia ; 35(2): 494-505, 2021 02.
Artículo en Inglés | MEDLINE | ID: mdl-32461630

RESUMEN

Population-based studies of classical Hodgkin lymphoma (cHL) in contemporary clinical practice are scarce. The aim of this nationwide population-based study is to assess trends in primary therapy and relative survival (RS) during 1989-2017. We included 9,985 patients with cHL. Radiotherapy alone was virtually not applied as from 2000 among patients aged 18-69 years with stage I/II disease, following the broader application of chemotherapy combined with radiotherapy. Chemotherapy only was the preferred treatment for patients with stage III/IV disease. Throughout the entire study period, around 20% of patients aged ≥70 years across all disease stages received no anti-neoplastic therapy. The most considerable improvements in 5-year RS were confined to patients aged 18-59 years. Five-year RS for patients with stage I/II disease diagnosed during 2010-2017 was 99%, 98%, 100%, 93%, 84%, and 61% for patients aged 18-29, 30-39, 40-49, 50-59, 60-69, and ≥70 years, respectively. The corresponding estimates for stage III/IV disease were 96%, 92%, 90%, 80%, 58%, and 46%. Collectively, the improvements in survival likely relate to advances in cHL management. These achievements, however, do not seem to translate into significant benefits for patients ≥60 years. Therefore, novel therapies are urgently needed to reduce excess mortality in elderly cHL patients.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Quimioradioterapia/mortalidad , Enfermedad de Hodgkin/mortalidad , Adolescente , Adulto , Anciano , Femenino , Estudios de Seguimiento , Enfermedad de Hodgkin/epidemiología , Enfermedad de Hodgkin/patología , Enfermedad de Hodgkin/terapia , Humanos , Masculino , Persona de Mediana Edad , Países Bajos/epidemiología , Pronóstico , Estudios Retrospectivos , Tasa de Supervivencia , Factores de Tiempo , Adulto Joven
12.
J Gen Intern Med ; 35(5): 1576-1578, 2020 05.
Artículo en Inglés | MEDLINE | ID: mdl-32141040

RESUMEN

The call for value-based medicine has augmented the role of primary care physicians, potentially exacerbating the already-acknowledged shortage of primary care physicians in the current delivery landscape. Lifetime earnings for primary care physicians are millions lower than those for other specialties, and the burden of medical school debt is increasing at a rate that outpaces inflation. Given the societal value of primary care entry for newly minted physicians, one option is a loan repayment program that shares some of that societal value with the physicians themselves, essentially a subsidy that is continuous and tied to present-day specialty choice. While income-based options exist currently, these are merely a proxy for specialty, and other service-driven options are finite and may impose undue burden on physicians at an early and pressure-laden time in their careers. Value-based repayment reflects the graduate's benefit from physician training while also rewarding the real-time societal value of specialties such as primary care, allowing doctors to put their talents to their best uses while advancing the transformation of the physician workforce necessary to realize value-based, patient-centered, population-oriented care.


Asunto(s)
Estudiantes de Medicina , Selección de Profesión , Humanos , Políticas , Apoyo a la Formación Profesional , Estados Unidos , Recursos Humanos
13.
J Palliat Med ; 23(10): 1377-1379, 2020 10.
Artículo en Inglés | MEDLINE | ID: mdl-31851561

RESUMEN

Objective: To describe trends in hospice social work visits in the last week of life before and after the introduction of the service intensity add-on (SIA) payment reform in 2016. Background: SIA was introduced to compensate hospices for the intensity of caring for individuals at the end of life; it is an hourly rate paid for registered nurse and social worker visits occurring during the last week of a beneficiary's life. Little is known about how hospices responded to this payment incentive. Design: This is a pre-post descriptive study. Setting/Subjects: Subjects were 2015-2016 hospices caring for Medicare beneficiaries. Results: We find a modest increase in social work visits in the last week of life from 2015 (pre-SIA) to 2016 (post-SIA). This modest increase masks significant variation based on organizational characteristics, such as size, facility type, and participation in payment demonstrations. Discussion: Our findings underscore the importance of examining both the overall impact of this type of policy and the change in distribution to identify whether change is being realized uniformly or is associated with certain types of organizations. A number of potential barriers exist to responding to policy incentives that may not be evenly felt across the hospice community.


Asunto(s)
Cuidados Paliativos al Final de la Vida , Hospitales para Enfermos Terminales , Anciano , Humanos , Medicare , Motivación , Servicio Social , Estados Unidos
14.
Am J Manag Care ; 25(9): e267-e273, 2019 09 01.
Artículo en Inglés | MEDLINE | ID: mdl-31518098

RESUMEN

OBJECTIVES: The current Medicare Shared Savings Program (MSSP) accountable care organization (ACO) attribution methodology creates unpredictability for ACOs that are developing and deploying strategic initiatives aimed at improving value. The goal of this study is to determine if ACO network comprehensiveness is associated with the stability of assigned Medicare beneficiaries from 2013 to 2014. STUDY DESIGN: We utilized a beneficiary-level logistic regression model to determine association of network comprehensiveness with stable attribution to an MSSP ACO. METHODS: Using 2013 and 2014 Medicare fee-for-service beneficiary and provider files, we developed a measure of network comprehensiveness based on 2013 provider contracts, determined beneficiary attribution, and generated market-level measures. Additional population and quality measures were obtained from the US Census and the ACO Public Use File. RESULTS: Of the 1,317,858 observed beneficiaries, 84.38% were attributed to the same ACO in 2013 and 2014, and mean (SD) ACO network comprehensiveness was 0.30 (0.20). We found that a 0.10 increase in network comprehensiveness score significantly increased the odds of remaining attributed to the same ACO by 4.5% (P = .001). Patient panel stability was significantly associated with improved diabetes (P = .01) and hypertension (P = .02) control, timely access to care (P = .001), and delivery of health education (P = .03) over the 2-year period. CONCLUSIONS: The comprehensiveness of an MSSP ACO's contracted provider network is associated with stable patient assignment year to year. Patient panel stability may aid in the longitudinal management of some conditions.


Asunto(s)
Organizaciones Responsables por la Atención/economía , Organizaciones Responsables por la Atención/estadística & datos numéricos , Ahorro de Costo/economía , Planes de Aranceles por Servicios/economía , Gastos en Salud/estadística & datos numéricos , Medicare/economía , Calidad de la Atención de Salud/economía , Anciano , Anciano de 80 o más Años , Ahorro de Costo/estadística & datos numéricos , Planes de Aranceles por Servicios/estadística & datos numéricos , Femenino , Humanos , Masculino , Medicare/estadística & datos numéricos , Calidad de la Atención de Salud/estadística & datos numéricos , Estados Unidos
15.
Haematologica ; 104(1): 147-154, 2019 01.
Artículo en Inglés | MEDLINE | ID: mdl-30115656

RESUMEN

Lenalidomide has been proven to be effective but with a distinct and difficult to manage toxicity profile in the context of chronic lymphocytic leukemia, potentially hampering combination treatment with this drug. We conducted a phase 1-2 study to evaluate the efficacy and safety of six cycles of chlorambucil (7 mg/m2 daily), rituximab (375 mg/m2 cycle 1 and 500 mg/m2 cycles 2-6) and individually-dosed lenalidomide (escalated from 2.5 mg to 10 mg) (induction-I) in first-line treatment of patients with chronic lymphocytic leukemia unfit for treatment with fludarabine, cyclophosphamide and rituximab. This was followed by 6 months of 10 mg lenalidomide monotherapy (induction-II). Of 53 evaluable patients in phase 2 of the study, 47 (89%) completed induction-I and 36 (68%) completed induction-II. In an intention-to-treat analysis, the overall response rate was 83%. The median progression-free survival was 49 months, after a median follow-up time of 27 months. The 2- and 3-year progression-free survival rates were 58% and 54%, respectively. The corresponding rates for overall survival were 98% and 95%. No tumor lysis syndrome was observed, while tumor flair reaction occurred in five patients (9%, 1 grade 3). The most common hematologic toxicity was grade 3-4 neutropenia, which occurred in 73% of the patients. In conclusion, addition of lenalidomide to a chemotherapy backbone followed by a fixed duration of lenalidomide monotherapy resulted in high remission rates and progression-free survival rates, which seem comparable to those observed with novel drug combinations including novel CD20 monoclonal antibodies or kinase inhibitors. Although lenalidomide-specific toxicity remains a concern, an individualized dose-escalation schedule is feasible and results in an acceptable toxicity profile. EuraCT number: 2010-022294-34.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Leucemia Linfocítica Crónica de Células B/tratamiento farmacológico , Leucemia Linfocítica Crónica de Células B/mortalidad , Adolescente , Adulto , Clorambucilo/administración & dosificación , Supervivencia sin Enfermedad , Estudios de Factibilidad , Femenino , Humanos , Lenalidomida/administración & dosificación , Leucemia Linfocítica Crónica de Células B/metabolismo , Leucemia Linfocítica Crónica de Células B/patología , Masculino , Persona de Mediana Edad , Rituximab/administración & dosificación , Tasa de Supervivencia , Vidarabina/administración & dosificación , Vidarabina/análogos & derivados
16.
Open Forum Infect Dis ; 5(7): ofy137, 2018 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-30035150

RESUMEN

BACKGROUND: Vaccines have been used successfully for disease elimination programs in many countries. Evidence on the impact of vaccination programs can support decision-making among medical practitioners and policy makers to improve immunization rates. We estimated the health and economic impact of measles vaccination for each of the 48 contiguous states and the District of Columbia since 1964. METHODS: For each state, we fitted multiple time-series models to prevaccination data and used the best-fitting model to predict counterfactual cases that would have occurred in the absence of vaccination. We then subtracted observed from counterfactual measles cases, deaths, and related costs to estimate the impact of vaccination. RESULTS: We estimated that 149 million children were vaccinated against measles in the United States between 1964 and 2014, at a cost of $12.2 billion, and that vaccination prevented 29.8 million cases, 32 000 deaths, and $25.8 billion in societal costs. The impact exceeded the national average in 70% of Western and Northeastern states, compared with only 24% of Southern and Midwestern states. CONCLUSIONS: The significant health and economic benefit of measles vaccination in the United States should encourage continued investments to sustain and expand vaccination programs globally.

17.
Ann Emerg Med ; 72(2): 147-155, 2018 08.
Artículo en Inglés | MEDLINE | ID: mdl-29606286

RESUMEN

STUDY OBJECTIVE: Regional, coordinated care for time-sensitive and high-risk medical conditions is a priority in the United States. A necessary precursor to coordinated regional care is regions that are actionable from clinical and policy standpoints. The Dartmouth Atlas of Health Care, the major health care referral construct in the United States, uses regions that cross state and county boundaries, limiting fiscal or political ownership by key governmental stakeholders in positions to create incentive and regulate regional care coordination. Our objective is to develop and evaluate referral regions that define care patterns for patients with acute myocardial infraction, acute stroke, or trauma, yet also preserve essential political boundaries. METHODS: We developed a novel set of acute care referral regions using Medicare data in the United States from 2011. For acute myocardial infraction, acute stroke, or trauma, we iteratively aggregated counties according to patient home location and treating hospital address, using a spatial algorithm. We evaluated referral political boundary preservation and spatial accuracy for each set of referral regions. RESULTS: The new set of referral regions, the Pittsburgh Atlas, had 326 distinct regions. These referral regions did not cross any county or state borders, whereas 43.1% and 98.1% of all Dartmouth Atlas hospital referral regions crossed county and state borders. The Pittsburgh Atlas was comparable to the Dartmouth Atlas in measures of spatial accuracy and identified larger at-risk populations for all 3 conditions. CONCLUSION: A novel and straightforward spatial algorithm generated referral regions that were politically actionable and accountable for time-sensitive medical emergencies.


Asunto(s)
Cuidados Críticos/normas , Infarto del Miocardio/terapia , Derivación y Consulta/normas , Accidente Cerebrovascular/terapia , Anciano , Anciano de 80 o más Años , Algoritmos , Servicios Médicos de Urgencia/normas , Femenino , Humanos , Masculino , Medicare , Guías de Práctica Clínica como Asunto , Factores de Tiempo , Estados Unidos
18.
Telemed J E Health ; 24(7): 510-516, 2018 07.
Artículo en Inglés | MEDLINE | ID: mdl-29293071

RESUMEN

BACKGROUND: Nursing homes (NHs) provide care to a complex patient population and face the ongoing challenge of meeting resident needs for specialty care. A NH telemedicine care model could improve access to remote specialty providers. INTRODUCTION: Little is known about provider interest in telemedicine for specialty consults in the NH setting. The goal of this study was to survey a national sample of NH physicians and advanced practice providers to document their views on telemedicine for providing specialty consults in the NH. MATERIALS AND METHODS: We surveyed physician and advanced practice providers who attended the 2016 AMDA-The Society for Post-Acute and Long-Term Care Medicine Annual Conference about their likelihood of referral to and perceptions of a telemedicine program for providing specialty consults in the NH. RESULTS: We received surveys from 524 of the 1,274 conference attendees for a 41.1% response rate. Respondents expressed confidence in the ability of telemedicine to fill existing service gaps and provide appropriate, timelier care. Providers showed the highest level of interest in telemedicine for dermatology, geriatric psychiatry, and infectious disease. Only 13% of respondents indicated that telemedicine was available for use in one of their facilities. DISCUSSION: There appears to be unmet demand for telemedicine in NHs for providing specialty consults to residents. CONCLUSIONS: The responses of NH providers suggest support for the concept of telemedicine as a modality of care that can be used to offer specialty consults to NH residents.


Asunto(s)
Actitud del Personal de Salud , Actitud hacia los Computadores , Casas de Salud , Consulta Remota , Especialización , Accesibilidad a los Servicios de Salud , Humanos , Encuestas y Cuestionarios
19.
J Appl Gerontol ; 37(1): 110-120, 2018 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-27269289

RESUMEN

Potentially avoidable hospitalizations (PAHs) of skilled nursing facility (SNF) patients are common and costly. Telemedicine represents a unique approach to manage and potentially reduce PAHs in SNFs, having been used in a variety of settings to improve coordination of care and enhance access to providers. Nonetheless, broad implementation and use of telemedicine lags in SNFs relative to other health care settings. To understand why, we surveyed SNF administrative staff attending a 1-day telemedicine summit. Participants saw the highest value of telemedicine in improving the quality of care and reducing readmissions. They identified hospital and managed care telemedicine requirements as primary drivers of adoption. The most significant barrier to adoption was the initial investment required. A joint research-policy effort to improve the evidence base around telemedicine in SNFs and introduce incentives may improve adoption and continued use of telemedicine in this setting.


Asunto(s)
Personal Administrativo , Instituciones de Cuidados Especializados de Enfermería , Telemedicina , Hospitalización , Humanos , Calidad de la Atención de Salud , Encuestas y Cuestionarios
20.
J Palliat Med ; 21(3): 373-375, 2018 03.
Artículo en Inglés | MEDLINE | ID: mdl-29058518

RESUMEN

OBJECTIVE: To document the presence of hospice and palliative physicians in Medicare Shared Savings Program (MSSP) ACOs. BACKGROUND: End-of-life care exhibits extreme variation in quality, cost, and patient experience. This baseline creates opportunities for improvements that would be financially rewarded in the new value-based reimbursement environment, such as the accountable care organization (ACO) model. Little is known about how ACOs have responded to this opportunity by including hospice and palliative providers in their formal provider networks. DESIGN: This is a cross-sectional analysis of 2014 MSSP ACO provider networks assessing inclusion of a hospice or palliative physician. SETTING/SUBJECTS: This study included MSSP ACO provider networks. RESULTS: Approximately three-quarters of MSSP ACOs did not formally contract with a hospice or palliative care physician in 2014. Inclusion of a hospice or palliative physician was associated with other specialists that commonly refer to hospice and palliative care, such as oncologists. DISCUSSION: By rewarding innovation that lowers expenditures, the ACO model encourages attention to care that exhibits high variation and expense. Both hospice and palliative care have been shown to reduce costs and improve the patient experience, making them potentially powerful tools in an ACO's arsenal. However, the MSSP ACO model has not emphasized care of seriously and terminally ill individuals, and thus it is not surprising that there has been consistently low inclusion of hospice and palliative care physicians in MSSP provider networks.


Asunto(s)
Organizaciones Responsables por la Atención/economía , Cuidados Paliativos al Final de la Vida/economía , Medicare/economía , Cuidados Paliativos/economía , Médicos/economía , Costos de la Atención en Salud , Humanos , Mecanismo de Reembolso , Estados Unidos
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