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1.
JAMA Netw Open ; 7(8): e2425627, 2024 Aug 01.
Article in English | MEDLINE | ID: mdl-39150712

ABSTRACT

Importance: Reduced institutional postacute care has been associated with savings in alternative payment models. However, organizations may avoid voluntary participation if participation could threaten their own revenues. Objective: To characterize the association between hospital-skilled nursing facility (SNF) integration and participation in Medicare's Bundled Payments for Care Improvement Advanced (BPCI-A) program. Design, Setting, and Participants: This is a cross-sectional analysis of hospital participation in BPCI-A beginning with its launch in 2018. Each SNF-integrated hospital was matched with 2 nonintegrated hospitals for each of 4 episode-specific analyses. Fifteen hospital-level variables were used for matching: beds, case mix index, days, area SNF beds, metropolitan location, ownership, region, system membership, and teaching status. Hospitals were also matched on episode-specific volume, target price, and the interaction of target price and case mix. Episode-specific logistic models were estimated regressing hospital participation on integration and the previously listed variables. The marginal effect of integration on participation was then calculated. Analysis took place from August 2022 to May 2024. Exposure: Hospital-SNF integration, as defined by common ownership and referral patterns and identified using cost reports, Medicare claims, and Provider Enrollment, Chain, and Ownership System records. Additional sources included records of target prices and participation, the Area Health Resources File, and the Compendium of US Health Systems. Main Outcomes and Measures: Participation in BPCI-A. Results: In total, 1524 hospitals met criteria for inclusion in the hip and femur (HFP) analysis, 1825 were included in the major joint replacement of the lower extremity (MJRLE) analysis, 2018 were included in the sepsis analysis, and 1564, were included in the stroke-specific analysis. Across episodes, 191 HFP-eligible hospitals (12.5% of HFP-eligible hospitals), 302 MJRLE-eligible hospitals (16.5%), 327 sepsis-eligible hospitals (16.2%), and 185 sepsis-eligible hospitals (11.8%) were SNF integrated. In total, 79 hospitals (5.2%) participated in the HFP episode, 128 (7.0%) participated in the MJRLE episode, 204 (10.1%) participated in the sepsis episode, and 141 (9.0%) participated in the stroke episode. Integration was associated with a 4.7-percentage point decrease (95% CI, 2.4 to 6.9 percentage points) in participation in the MJRLE episode. There was no association between integration and participation for HFP (0.5-percentage point increase in participation moving from nonintegrated to integrated; 95% CI, -2.9 to 3.8 percentage points), sepsis (1.0-percentage point increase; 95% CI, -2.2 to 4.2 percentage points), and stroke (0.3-percentage point decrease; 95% CI, -3.1 to 3.8 percentage points). Conclusions and Relevance: In this cross-sectional study, there was an uneven association between hospital-SNF integration and participation in Medicare's BPCI-A program. Other factors may be more consistent determinants of selection into voluntary payment reform.


Subject(s)
Medicare , Skilled Nursing Facilities , United States , Humans , Cross-Sectional Studies , Medicare/economics , Skilled Nursing Facilities/economics , Skilled Nursing Facilities/statistics & numerical data , Patient Care Bundles/economics , Hospitals/statistics & numerical data , Reimbursement Mechanisms
2.
Nat Commun ; 12(1): 1281, 2021 02 24.
Article in English | MEDLINE | ID: mdl-33627663

ABSTRACT

Regulatory T cells (Tregs) play an important role in maintaining immune homeostasis and, within tumors, their upregulation is common and promotes an immunosuppressive microenvironment. Therapeutic strategies that can eliminate Tregs in the tumor (i.e., therapies that do not run the risk of affecting normal tissues), are urgently needed for the development of cancer immunotherapies. Here we report our discovery of B-cell lymphoma extra-large (BCL-XL) as a potential molecular target of tumor-infiltrating (TI) Tregs. We show that pharmacological degradation of BCL-XL using a newly developed platelet-sparing BCL-XL Proteolysis-targeting chimera (PROTAC) induces the apoptosis of TI-Tregs and the activation of TI-CD8+ T cells. Moreover, these activities result in an effective suppression of syngeneic tumor growth in immunocompetent, but not in immunodeficient or CD8+ T cell-depleted mice. Notably, treatment with BCL-XL PROTAC does not cause detectable damage within several normal tissues or thrombocytopenia. These findings identify BCL-XL as a target in the elimination of TI-Tregs as a component of cancer immunotherapies, and that the BCL-XL-specific PROTAC has the potential to be developed as a therapeutic for cancer immunotherapy.


Subject(s)
Lymphocytes, Tumor-Infiltrating/metabolism , T-Lymphocytes, Regulatory/metabolism , Animals , CRISPR-Cas Systems/genetics , CRISPR-Cas Systems/physiology , Cell Survival/genetics , Cell Survival/physiology , Cells, Cultured , Female , Flow Cytometry , Immunoblotting , Mice , Mice, Inbred C57BL , Proteolysis , bcl-X Protein/genetics , bcl-X Protein/metabolism
3.
Cureus ; 12(9): e10376, 2020 Sep 11.
Article in English | MEDLINE | ID: mdl-33062499

ABSTRACT

Background Due to the slow progression of many chronic liver diseases, including hepatitis C, it is not practical or safe to monitor disease progression by serial liver biopsies. Noninvasive laboratory scoring systems based on routine laboratory tests are appealing surrogate markers of liver fibrosis for the staging and monitoring of chronic liver diseases such as hepatitis C. Methods We explored the accuracy of three scoring systems: the fibrosis-4 score (FIB-4), the aspartate aminotransferase to platelet ratio index (APRI score), and the aspartate aminotransferase to alanine aminotransferase ratio (AAR) in 496 patients with chronic hepatitis C virus (HCV) infection who had undergone percutaneous liver biopsy at a viral hepatitis clinic in Shreveport, Louisiana. Results For FIB-4, the area under the receiver operating characteristic curve (AUROC) for hepatic fibrosis stages ≥ 1, ≥ 2, ≥ 3, and 4 (cirrhosis) ranged from 0.74 (95% CI, 0.678 - 0.802) to 0.802 (95% CI, 0.751 - 0.854). At a cutoff value of 1.45, FIB-4 was 82% sensitive for advanced fibrosis or cirrhosis (stage 3 or 4) but was only 58% specific for these findings. Increasing the FIB-4 cutoff value to 3.25 reduced the sensitivity for detecting advanced fibrosis or cirrhosis to 39%, but this higher cutoff was 92% specific for these findings. Corresponding AUROCs for the APRI and AAR scores were inferior to FIB-4. Conclusion The FIB-4 index outperformed APRI and AAR in our HCV infected population in predicting severe fibrosis or cirrhosis.

4.
JCO Oncol Pract ; 16(5): e456-e463, 2020 05.
Article in English | MEDLINE | ID: mdl-32196401

ABSTRACT

PURPOSE: Reducing drug spend is one of the greatest challenges for practices participating in the Oncology Care Model (OCM). Evidence-based clinical pathways have the potential to decrease drug spend while maintaining clinical outcomes consistent with published evidence. The goal of this study was to determine whether voluntary use of clinical pathways by a practice can maximize OCM episodic cost savings. METHODS AND MATERIALS: A community oncology practice used evidence-based clinical pathways for OCM-attributed patients. All treatment plans were submitted to the pathway vendor in real time for clinical pathway adherence measurement. Analysis was conducted before implementation and on an ongoing daily and weekly basis to identify cases in which higher cost drugs or regimens were ordered. A clinical data governance committee met biweekly to review clinical pathway performance metrics and drug utilization. RESULTS: From quarter 1 of 2017 to quarter 1 of 2019, the median drug spend increased less rapidly for Cancer Care Specialists of Illinois (CCSI; 18.6%) compared with OCM (34.4%). Furthermore, the percent difference in drug spend for CCSI relative to OCM decreased from 13.5% to 0.1% (P < .001). Each quarter, there was approximately a 1.7% decrease (95% CI, 1.0% to 2.4%) in drug spend for CCSI relative to OCM. Additional analyses found that, over a 15-month period (October 2017 through December 2019), CCSI achieved an increase in pathway adherence from 69% to 81%. CONCLUSION: Reduction in drug spend is possible within a value-based care model, using evidence-based clinical pathways.


Subject(s)
Critical Pathways , Pharmaceutical Preparations , Cost Savings , Humans , Illinois , Medical Oncology
5.
BMJ Case Rep ; 13(2)2020 Feb 13.
Article in English | MEDLINE | ID: mdl-32060111

ABSTRACT

Primary cutaneous aspergillosis (PCA) occurs through inoculation of fungal spores directly into the skin from the environment through disrupted skin such as in burns, surgery or penetrating trauma patients. Most cases reported in literature were in the immunocompromised, rarely in immunocompetent patients. The characteristic lesion of cutaneous aspergillosis is a black eschar on a red plaque, or nodule at the site of skin injury. The diagnosis of PCA can be made by identifying hyphal forms on routine H&E staining or special stains such as periodic acid-Schiff or Gomori methenamine-silver stains on skin biopsy and by fungal cultures. We report a case of an 80-year-old farmer who developed cutaneous aspergillosis after a surgical procedure without any systemic spread. The diagnosis was made by histopathology and tissue fungal cultures. He was treated with incision and drainage followed by oral voriconazole for 4 weeks; which led to clinical recovery.


Subject(s)
Aspergillosis/diagnosis , Aspergillus fumigatus/isolation & purification , Dermatomycoses/diagnosis , Aged, 80 and over , Aspergillosis/drug therapy , Dermatomycoses/drug therapy , Humans , Immunocompetence , Male , Postoperative Complications , Staining and Labeling , Voriconazole/therapeutic use
6.
J Neurol Surg Rep ; 77(1): e035-8, 2016 Mar.
Article in English | MEDLINE | ID: mdl-26929899

ABSTRACT

Introduction The decompressive craniectomy is a surgical strategy widely used with specific criteria to control the refractory intracranial pressure (ICP). However, it is important to warn about the presence of a postcraniectomy syndrome and analyze the risk-benefit on a long term. Case Report A 72-year-old male patient diagnosed with a subarachnoid hemorrhage secondary to the rupture of an anterior circulation aneurysm that develops vasospasm, secondary ischemia, and edema with signs of herniation that required a decompressive craniectomy on a first step. Afterwards, the aneurysm was approached and he consequently developed hydrocephaly. A ventriculoperitoneal shunt is installed, contralateral to the craniectomy, and progressive sinking of the skin flap, there is neurological deterioration and paradoxical herniation. Its association with the clinical deterioration by bronchoaspiration did not allow the cranioplasty to resolve the ICP decompensation. Conclusions The paradoxical herniation as part of the postcraniectomy syndrome is an increasingly common condition identified in adult patients with cortical atrophy, and who have also been treated with ventricular shunt systems. Timely cranioplasty represents the ideal therapeutic plan once the compromise from the mass effect has resolved to avoid complications derived from the decompressive craniectomy per se.

8.
Surg Neurol Int ; 6(Suppl 19): S487-9, 2015.
Article in English | MEDLINE | ID: mdl-26605110

ABSTRACT

BACKGROUND: The peripheral hallmarks of neurofibromatosis type 1 (NF1) are Café au lait and solid nodular neurofibromas. The morphological behavior of these lesions could be susceptible to modification during pregnancy. The present case report describes a case of cystic transformation of a nodular neurofibroma, with progressive growth and mass effect in the anterior cervical region, which was surgically resolved without any complications. CASE DESCRIPTION: A 33-year-old female patient with a known personal history of NF1, with annual control of the peripheral neurofibromas and cerebral and spinal magnetic resonance imaging follow-ups. Under genetic counseling, she decides to get pregnant following all the medical advises. Once the pregnancy is confirmed, she starts to notice the growth of one of them adjacent to the left cervical region. Such neurofibroma presented with the progressive gradual increase and in the last month, she presented dysphagia, dysphonia, and postural pain localized by the mass effect. Once the pregnancy concluded, the microsurgical approach was scheduled for resection of the lesion, where a cystic mass was found within the walls of the neurofibroma. The resection was uneventful. CONCLUSION: The transformation of a nodular to cystic neurofibroma during pregnancy is a very rare presentation, which may exacerbate the clinical symptomatology depending on the topography of the lesion due to the mass effect it may create. This condition may alert to the recommendations and vigilance in patients with NF1, who are pregnant or are planning on a future pregnancy. The neurosurgical resolution in this region is safe and beneficial.

9.
Biomed Res Int ; 2015: 821279, 2015.
Article in English | MEDLINE | ID: mdl-26504833

ABSTRACT

Tissue engineering is an important therapeutic strategy to be used in regenerative medicine in the present and in the future. Functional biomaterials research is focused on the development and improvement of scaffolding, which can be used to repair or regenerate an organ or tissue. Scaffolds are one of the crucial factors for tissue engineering. Scaffolds consisting of natural polymers have recently been developed more quickly and have gained more popularity. These include chitosan, a copolymer derived from the alkaline deacetylation of chitin. Expectations for use of these scaffolds are increasing as the knowledge regarding their chemical and biological properties expands, and new biomedical applications are investigated. Due to their different biological properties such as being biocompatible, biodegradable, and bioactive, they have given the pattern for use in tissue engineering for repair and/or regeneration of different tissues including skin, bone, cartilage, nerves, liver, and muscle. In this review, we focus on the intrinsic properties offered by chitosan and its use in tissue engineering, considering it as a promising alternative for regenerative medicine as a bioactive polymer.


Subject(s)
Chitosan , Regenerative Medicine/methods , Tissue Engineering/methods , Tissue Scaffolds , Animals , Biocompatible Materials , Humans , Mice
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