12 results on '"Hofmann JC"'
Search Results
2. Patient preferences for communication with physicians about end-of-life decisions. SUPPORT Investigators. Study to Understand Prognoses and Preference for Outcomes and Risks of Treatment.
- Author
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Hofmann JC, Wenger NS, Davis RB, Teno J, Connors AF Jr., Desbiens N, Lynn J, Phillips RS, SUPPORT Investigators, Hofmann, J C, Wenger, N S, Davis, R B, Teno, J, Connors, A F Jr, Desbiens, N, Lynn, J, and Phillips, R S
- Abstract
Background: Physicians are frequently unaware of patient preferences for end-of-life care. Identifying and exploring barriers to patient-physician communication about end-of-life issues may help guide physicians and their patients toward more effective discussions.Objective: To examine correlates and associated outcomes of patient communication and patient preferences for communication with physicians about cardiopulmonary resuscitation and prolonged mechanical ventilation.Design: Prospective cohort study.Setting: Five tertiary care hospitals.Patients: 1832 (85%) of 2162 eligible patients completed interviews.Measurements: Surveys of patient characteristics and preferences for end-of-life care; perceptions of prognosis, decision making, and quality of life; and patient preferences for communication with physicians about end-of-life decisions.Results: Fewer than one fourth (23%) of seriously ill patients had discussed preferences for cardiopulmonary resuscitation with their physicians. Of patients who had not discussed their preferences for resuscitation, 58% were not interested in doing so. Of patients who had not discussed and did not want to discuss their preferences, 25% did not want resuscitation. In multivariable analyses, patient factors independently associated with not wanting to discuss preferences for cardiopulmonary resuscitation included being of an ethnicity other than black (adjusted odds ratio [OR], 1.48 [95% CI, 1.10 to 1.99), not having an advance directive (OR, 1.35 [CI, 1.04 to 1.76]), estimating an excellent prognosis (OR, 1.72 [CI, 1.32 to 2.59]), reporting fair to excellent quality of life (OR, 1.36 [CI, 1.05 to 1.76]), and not desiring active involvement in medical decisions (OR, 1.33 [CI, 1.07 to 1.65]). Factors independently associated with wanting to discuss preferences for resuscitation but not doing so included being black (OR, 1.53 [CI, 1.11 to 2.11]) and being younger (OR, 1.14 per 10-year interval younger [CI, 1.04 to 1.25]).Conclusions: Among seriously ill hospitalized adults, communication about preferences for cardiopulmonary resuscitation is uncommon. A majority of patients who have not discussed preferences for end-of-life care do not want to do so. For patients who do not want to discuss their preferences, as well as patients with an unmet need for such discussions, failure to discuss preferences for cardiopulmonary resuscitation and mechanical ventilation may result in unwanted interventions. [ABSTRACT FROM AUTHOR]- Published
- 1997
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3. Therapeutic Plasma Exchange to Reverse Plasma Failure in Multiple Organ Dysfunction Syndrome.
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Foglia MJ, Raval JS, Hofmann JC, and Carcillo JA
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- Humans, Blood Coagulation, Inflammation, Plasma, Plasma Exchange methods, Multiple Organ Failure therapy, Multiple Organ Failure etiology
- Abstract
Plasma plays a crucial role in maintaining health through regulating coagulation and inflammation. Both are essential to respond to homeostatic threats such as traumatic injury or microbial infection; however, left unchecked, they can themselves cause damage. A well-functioning plasma regulatory milieu controls the location, intensity, and duration of the response to injury or infection. In contrast, plasma failure can be conceptualized as a state in which these mechanisms are overwhelmed and unable to constrain coagulation and inflammation appropriately. This dysregulated state causes widespread tissue damage and multiple organ dysfunction syndrome. Unlike plasma derangements caused by individual factors, plasma failure is characterized by a heterogeneous set of plasma component deficiencies and excesses. Targeted therapies such as factor replacement or recombinant antibodies are thus inadequate to restore plasma function. Therapeutic plasma exchange offers the unique ability to remove harmful factors and replete exhausted components, thereby reestablishing appropriate regulation of coagulation and inflammation., (© 2024 The Author(s). Journal of Clinical Apheresis published by Wiley Periodicals LLC.)
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- 2024
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4. Guidelines on the Use of Therapeutic Apheresis in Clinical Practice - Evidence-Based Approach from the Writing Committee of the American Society for Apheresis: The Ninth Special Issue.
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Connelly-Smith L, Alquist CR, Aqui NA, Hofmann JC, Klingel R, Onwuemene OA, Patriquin CJ, Pham HP, Sanchez AP, Schneiderman J, Witt V, Zantek ND, and Dunbar NM
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- Humans, United States, Writing, Evidence-Based Medicine, Blood Component Removal
- Abstract
The American Society for Apheresis (ASFA) Journal of Clinical Apheresis (JCA) Special Issue Writing Committee is charged with reviewing, updating, and categorizing indications for the evidence-based use of therapeutic apheresis (TA) in human disease. In the Ninth Edition, the JCA Special Issue Writing Committee has incorporated systematic review and evidence-based approaches in the grading of evidence and categorization of apheresis indications to make recommendations on the use of apheresis in a wide variety of diseases and conditions. This edition has largely maintained the general layout and concept of a fact sheet introduced in the Fourth Edition (2007). Each fact sheet succinctly summarizes the evidence for the use of TA in a specific disease or medical condition. The Ninth Edition of the JCA Special Issue comprises 91 fact sheets and 166 graded and categorized indications. This includes seven new fact sheets, nine new indications on existing fact sheets, and eight changes in the category for existing indications. The Ninth Edition of the JCA Special Issue seeks to continue to serve as a key resource that guides the utilization of TA in the treatment of human disease., (© 2023 Wiley Periodicals LLC.)
- Published
- 2023
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5. Apheresis medicine in the era of advanced telehealth technologies: An American Society for Apheresis position paper part II: Principles of apheresis medical practice in a 21st century electronic medical practice environment.
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Linz W, Andrzejewski C Jr, and Hofmann JC
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- Blood Component Removal trends, Humans, Societies, Medical organization & administration, Societies, Medical trends, Telemedicine trends, United States, Blood Component Removal methods, Telemedicine methods
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- 2022
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6. The report from ASFA COVID-19 taskforce: Considerations and prioritization on apheresis procedures during the SARS-CoV-2 coronavirus disease (COVID-19) pandemic.
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Yamada C, Hofmann JC, Witt V, Gupta GK, and Winters JL
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- Humans, Practice Guidelines as Topic, SARS-CoV-2, Societies, Medical, United States epidemiology, Blood Component Removal methods, Blood Component Removal statistics & numerical data, COVID-19 epidemiology, Pandemics
- Abstract
Since vaccination for SARS-CoV-2 coronavirus started, the trajectory of patient numbers infected with the virus has improved once; however, variants of SARS-CoV-2 have emerged and more people have been infected; therefore, pandemic status is still far from resolution. Government and social efforts to prevent coronavirus infection continue in most states in the US and globally even after the Centers for Disease Control and Prevention declared some restriction relief for fully vaccinated people in March 2021. Healthcare institutions and various professional organizations have developed guidelines or policies to prevent the spread of these coronaviruses in the setting of apheresis. In this report, the issues that apheresis services may encounter under the current COVID-19 (SARS-CoV-2 coronavirus disease) pandemic will be discussed with potential strategies that can be adapted for efficient and optimum use of apheresis resources., (© 2021 Wiley Periodicals LLC.)
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- 2021
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7. Report of the ASFA apheresis registry study on Wilson's disease.
- Author
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Pham HP, Schwartz J, Cooling L, Hofmann JC, Kim HC, Morgan S, Pagano MB, Schneiderman J, Winters JL, Yamada C, Wong EC, and Wu Y
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- Adolescent, Adult, Child, Female, Hepatolenticular Degeneration complications, Humans, Liver Failure, Acute etiology, Liver Failure, Acute therapy, Liver Transplantation, Male, Middle Aged, Plasma Exchange, Prospective Studies, Registries, Retrospective Studies, Treatment Outcome, Young Adult, Blood Component Removal, Hepatolenticular Degeneration therapy
- Abstract
Purpose: Wilson's disease is a rare autosomal recessive genetic disorder that results in accumulation of copper in the liver, brain, cornea and kidney. Therapeutic plasma exchange (TPE) has been used to remove copper and provide a bridge to liver transplantation. We report here the collective experiences through the ASFA apheresis registry on Wilson's disease., Methods: The ASFA apheresis registry is a multi-center registry study. Both prospective and retrospective data, with the latter involving data collection back to January 2000 are entered in the registry. The registry includes patient demographics, apheresis procedural information, treatment schedules, and treatment outcomes and complications., Results: A total of 10 patients (3 males and 7 females) with Wilson's disease treated between 2005 and 2013 were included. Median age of first diagnosis and first TPE were 16 and 17 years, respectively. Via central venous access, these patients underwent a total of 43 TPEs; the median number of TPE procedures per patient was 3.5. All of the TPEs used ACD-A as anticoagulation, 42/43 TPEs targeted 1-1.25 plasma volumes, and 41/43 TPEs were performed with 100% fluid balance. Post TPE procedures, 9 patients underwent liver transplantation; all 10 patients had at least a 6-month survival., Conclusions: All 10 patients with Wilson's disease who underwent TPE had a positive outcome in terms of 6-month survival. In this first report of the ASFA apheresis registry study, we have demonstrated the value of using this registry to collect apheresis-related patient outcomes from multiple centers., (© 2015 Wiley Periodicals, Inc.)
- Published
- 2016
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8. Acute liver failure caused by herpes simplex virus in a pregnant patient: is there a potential role for therapeutic plasma exchange?
- Author
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Holt EW, Guy J, Gordon SM, Hofmann JC, Garcia-Kennedy R, Steady SL, Bzowej NH, and Frederick RT
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- Acute Disease, Acyclovir therapeutic use, Anti-Bacterial Agents therapeutic use, Antiviral Agents therapeutic use, Cesarean Section, Combined Modality Therapy, Dexamethasone therapeutic use, Emergencies, Female, Fetal Organ Maturity, Hepatitis, Viral, Human drug therapy, Hepatitis, Viral, Human therapy, Herpes Simplex drug therapy, Herpes Simplex therapy, Humans, Hydrocortisone therapeutic use, Infant, Newborn, Liver Failure therapy, Male, Pregnancy, Pregnancy Complications, Infectious, Puerperal Disorders drug therapy, Puerperal Disorders therapy, Systemic Inflammatory Response Syndrome drug therapy, Systemic Inflammatory Response Syndrome etiology, Systemic Inflammatory Response Syndrome therapy, Young Adult, Hepatitis, Viral, Human complications, Herpes Simplex complications, Liver Failure etiology, Plasma Exchange, Pregnancy Complications etiology
- Abstract
A young woman presented with a febrile illness in the third trimester of pregnancy. Laboratory investigation revealed severe acute hepatitis with thrombocytopenia and coagulopathy. Liver injury progressed despite emergent caesarian section and delivery of a healthy infant. Therefore, therapeutic plasma exchange (TPE) was performed on three consecutive days post-partum for a presumed diagnosis of acute liver failure (ALF) associated with pregnancy due to hemolysis, elevated liver enzymes, and low platelets (HELLP) or acute fatty liver of pregnancy (AFLP). Treatment with TPE was followed by biochemical and clinical improvement but during her recovery herpes simplex virus type 2 (HSV-2) infection was diagnosed serologically and confirmed histologically. Changes in the immune system during pregnancy make pregnant patients more susceptible to acute HSV hepatitis, HSV-related ALF, and death. The disease is characterized by massive hepatic inflammation with hepatocyte necrosis, mediated by both direct viral cytotoxicity and the innate humoral immune response. TPE may have a therapeutic role in acute inflammatory disorders such as HSV hepatitis by reducing viral load and attenuating systemic inflammation and liver cell injury. Further investigation is needed to clarify this potential effect. The roles of vigilance, clinical suspicion, and currently accepted therapies are emphasized., (Copyright © 2013 Wiley Periodicals, Inc.)
- Published
- 2013
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9. The Prp19 complex directly functions in mitotic spindle assembly.
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Hofmann JC, Tegha-Dunghu J, Dräger S, Will CL, Lührmann R, and Gruss OJ
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- Animals, Cell Line, DNA Repair Enzymes genetics, Gene Knockdown Techniques, Humans, Microtubules metabolism, Nuclear Proteins genetics, RNA Splicing Factors, Xenopus, DNA Repair Enzymes metabolism, Mitosis physiology, Nuclear Proteins metabolism, Spindle Apparatus metabolism
- Abstract
The conserved Prp19 (pre-RNA processing 19) complex is required for pre-mRNA splicing in eukaryotic nuclei. Recent RNAi screens indicated that knockdown of Prp19 complex subunits strongly delays cell proliferation. Here we show that knockdown of the smallest subunit, BCAS2/Spf27, destabilizes the entire complex and leads to specific mitotic defects in human cells. These could result from splicing failures in interphase or reflect a direct function of the complex in open mitosis. Using Xenopus extracts, in which cell cycle progression and spindle formation can be reconstituted in vitro, we tested Prp19 complex functions during a complete cell cycle and directly in open mitosis. Strikingly, immunodepletion of the complex either before or after interphase significantly reduces the number of intact spindles, and increases the percentage of spindles with lower microtubule density and impaired metaphase alignment of chromosomes. Our data identify the Prp19 complex as the first spliceosome subcomplex that directly contributes to mitosis in vertebrates independently of its function in interphase.
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- 2013
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10. The function of spliceosome components in open mitosis.
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Hofmann JC, Husedzinovic A, and Gruss OJ
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- Humans, Nuclear Pore metabolism, Nuclear Proteins metabolism, RNA Interference, RNA Splicing, RNA, Messenger metabolism, Mitosis, Spliceosomes metabolism
- Abstract
Spatial separation of eukaryotic cells into the nuclear and cytoplasmic compartment permits uncoupling of DNA transcription from translation of mRNAs and allows cells to modify newly transcribed pre mRNAs extensively. Intronic sequences (introns), which interrupt the coding elements (exons), are excised ("spliced") from pre-mRNAs in the nucleus to yield mature mRNAs. This not only enables alternative splicing as an important source of proteome diversity, but splicing is also an essential process in all eukaryotes and knock-out or knock-down of splicing factors frequently results in defective cell proliferation and cell division. However, higher eukaryotes progress through cell division only after breakdown of the nucleus ("open mitosis"). Open mitosis suppresses basic nuclear functions such as transcription and splicing, but allows separate, mitotic functions of nuclear proteins in cell division. Mitotic defects arising after loss-of-function of splicing proteins therefore could be an indirect consequence of compromised splicing in the closed nucleus of the preceding interphase or reflect a direct contribution of splicing proteins to open mitosis. Although experiments to directly distinguish between these two alternatives have not been reported, indirect evidence exists for either hypotheses. In this review, we survey published data supporting an indirect function of splicing in open mitosis or arguing for a direct function of spliceosomal proteins in cell division.
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- 2010
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11. Plasmapheresis in immunologically mediated polyneuropathies.
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Kiprov DD and Hofmann JC
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- HIV Infections complications, Humans, Polyneuropathies etiology, Immune System Diseases therapy, Plasmapheresis methods, Polyneuropathies therapy
- Abstract
One of the most common uses of therapeutic plasmapheresis is for the treatment of immunologically mediated polyneuropathies. This paper discusses the use of plasmapheresis in Guillain-Barré syndrome, chronic inflammatory demyelinating polyneuropathy, polyneuropathies associated with paraproteins, lower motor neuron syndromes, and polyneuropathies associated with HIV. As the pathogenesis of immunologically mediated polyneuropathies becomes better understood, newer therapies for these syndromes will evolve: however, therapeutic plasmapheresis is likely to continue to play a central role in the treatment of many of these diseases.
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- 2003
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12. Management of urinary incontinence in the female.
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Nesbitt RE Jr and Hofmann JC
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- Adult, Aged, Female, Hospitals, Teaching, Humans, Middle Aged, Patient Care Team, Postoperative Complications prevention & control, Retrospective Studies, Urinary Fistula surgery, Urinary Incontinence complications, Urinary Incontinence diagnosis, Urinary Incontinence, Stress prevention & control, Urinary Incontinence surgery
- Published
- 1971
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