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1.
Hepatology ; 61(5): 1485-94, 2015 May.
Artigo em Inglês | MEDLINE | ID: mdl-25557906

RESUMO

UNLABELLED: Recurrent hepatitis C virus (HCV) infection after liver transplantation (LT) is associated with accelerated progression of liver disease, frequently leading to graft loss and early death. Existing treatment options for severe recurrent HCV infection are limited by suboptimal efficacy, poor tolerability, and numerous drug interactions. We provided sofosbuvir (SOF) and ribavirin (RBV) on a compassionate-use basis to patients with severe recurrent hepatitis C, including those with fibrosing cholestatic hepatitis (FCH) and decompensated cirrhosis who had a life expectancy of 1 year or less. All patients were to receive 24-48 weeks of SOF plus RBV. Investigators could add pegylated interferon to the regimen at their discretion. Data from the first 104 patients who completed or prematurely discontinued treatment by January 1, 2014 are presented. Of the 104 patients analyzed, 52 had an early severe recurrence (diagnosed <12 months after LT) and 52 had cirrhosis (diagnosed >12 months after LT). Twelve patients who underwent retransplantation were excluded from our efficacy analysis. Of the 92 patients assessed, 54 (59%) achieved sustained virological response (SVR) at 12 weeks after the end of treatment, with a higher rate (73%; 35 of 48) in patients with early severe recurrence. Of the 103 patients assessed for clinical outcome, 59 (57%) reported clinical improvement at the last study visit, 23 (22%) were unchanged, 3 (3%) had a worsened clinical status, and 13 (13%) died. Overall, 123 serious adverse events (SAEs) occurred in 49 patients (47%). SAEs associated with hepatic decompensation were the most frequent, with 26 SAEs occurring in 19 patients (18%). CONCLUSION: SOF and RBV provide high rates of SVR in patients with severe recurrent HCV, including patients with early severe recurrence, FCH, and cirrhosis.


Assuntos
Antivirais/uso terapêutico , Ensaios de Uso Compassivo , Hepatite C Crônica/tratamento farmacológico , Hepatite C Crônica/cirurgia , Transplante de Fígado , Ribavirina/uso terapêutico , Uridina Monofosfato/análogos & derivados , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Recidiva , Índice de Gravidade de Doença , Sofosbuvir , Falha de Tratamento , Uridina Monofosfato/uso terapêutico
2.
J Neurooncol ; 104(3): 737-44, 2011 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-21311950

RESUMO

The purpose of this study is to identify the needs of brain tumor patients and their caregivers to provide improved health services to these populations. Two different questionnaires were designed for patients and caregivers. Both questionnaires contained questions pertaining to three realms: disease symptoms/treatment, health care provider, daily living/finances. The caregivers' questionnaires contained an additional domain on emotional needs. Each question was evaluated for the degree of importance and satisfaction. Exploratory analyses determined whether baseline characteristics affect responder importance or satisfaction. Also, areas of high agreement/disagreement in satisfaction between the participating patient-caregiver pairs were identified. Questions for which >50% of the patients and caregivers thought were "very important" but >30% were dissatisfied include: understanding the cause of brain tumors, dealing with patients' lower energy, identifying healthful foods and activities for patients, telephone access to health care providers, information on medical insurance coverage, and support from their employer. In the emotional realm, caregivers identified 9 out of 10 items as important but need further improvement. Areas of high disagreement in satisfaction between participating patient-caregiver pairs include: getting help with household chores (P value = 0.006) and finding time for personal needs (P value < 0.001). This study provides insights into areas to improve services for brain tumor patients and their caregivers. The caregivers' highest amount of burden is placed on their emotional needs, emphasizing the importance of providing appropriate medical and psychosocial support for caregivers to cope with emotional difficulties they face during the patients' treatment process.


Assuntos
Neoplasias Encefálicas/psicologia , Cuidadores/psicologia , Necessidades e Demandas de Serviços de Saúde/estatística & dados numéricos , Qualidade de Vida/psicologia , Atividades Cotidianas , Adaptação Psicológica , Adulto , Idoso , Idoso de 80 Anos ou mais , Neoplasias Encefálicas/enfermagem , Emoções , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Satisfação do Paciente , Estatísticas não Paramétricas , Inquéritos e Questionários , Adulto Jovem
3.
Respir Care ; 51(5): 492-6, 2006 May.
Artigo em Inglês | MEDLINE | ID: mdl-16638158

RESUMO

INTRODUCTION: Dexmedetomidine is a selective alpha-2 adrenergic receptor agonist that exhibits sedative, analgesic, anxiolytic, and sympatholytic effects without respiratory-drive depression. We prospectively evaluated the use of dexmedetomidine to facilitate the withdrawal of mechanical ventilation and extubation in 5 trauma/surgical intensive-care-unit patients who had failed previous weaning attempts due to agitation and hyperdynamic cardiopulmonary response. METHODS: Intravenous infusion of dexmedetomidine commenced at 0.5 or 0.7 microg/kg/h without a loading dose. Background sedation and analgesia with propofol, benzodiazepines, and opiates was discontinued or reduced as tolerated. Dexmedetomidine infusion was titrated between 0.2 and 0.7 microg/kg/h to maintain a stable cardiopulmonary response and modified Ramsay Sedation Score between 2 and 4. RESULTS: Following dexmedetomidine administration, propofol infusion was weaned and discontinued in 4 patients. In the fifth patient, benzodiazepine and opiate infusions were reduced. Ventilatory support in all patients could be weaned to continuous positive airway pressure of 5 cm H2O without agitation, hemodynamic instability, or respiratory decompensation. All patients were extubated while receiving dexmedetomidine infusion (mean dose of 0.32 +/- 0.08 microg/kg/h). One patient required reintubation for upper-airway obstruction. CONCLUSION: Dexmedetomidine appears to maintain adequate sedation without hemodynamic instability or respiratory-drive depression, and thus may facilitate extubation in agitated difficult-to-wean patients; it therefore deserves further investigation toward this novel use.


Assuntos
Agonistas alfa-Adrenérgicos/uso terapêutico , Cuidados Críticos , Dexmedetomidina/uso terapêutico , Respiração Artificial , Desmame do Respirador/métodos , Agonistas alfa-Adrenérgicos/administração & dosagem , Adulto , Idoso , Dexmedetomidina/administração & dosagem , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Projetos Piloto , Estados Unidos
4.
Clin Cancer Res ; 19(1): 205-14, 2013 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-22872572

RESUMO

PURPOSE: Cancer immunotherapy offers hope of a highly specific nontoxic adjuvant treatment. Heat shock protein peptide complexes (HSPPCs) found in cancer cells carry tumor-specific antigenic proteins and can facilitate adaptive and innate immune responses. Here we show that peptides bound to a 96 kD chaperone protein (HSP-96) from brain tissue containing glioblastoma multiforme (GBM) can be used to safely immunize patients with recurrent GBM. EXPERIMENTAL DESIGN: Multimodality immunomonitoring was completed on 12 patients with recurrent GBM before and after immunization with an autologous HSPPC vaccine derived from surgically resected tumor. Clinical endpoints included safety assessments and overall survival. RESULTS: No adverse events attributable to the vaccine were found. Testing of peripheral blood leukocytes before and after vaccination revealed a significant peripheral immune response specific for the peptides bound to HSP-96, in 11 of the 12 patients treated. Brain biopsies of immune responders after vaccination revealed focal CD4, CD8, and CD56 IFNγ positive cell infiltrates, consistent with tumor site specific immune responses. Immune responders had a median survival of 47 weeks after surgery and vaccination, compared with 16 weeks for the single nonresponder. CONCLUSIONS: These data provide the first evidence in humans of individual patient-specific immune responses against autologous tumor derived peptides bound to HSP-96.


Assuntos
Antígenos de Neoplasias/imunologia , Neoplasias Encefálicas/imunologia , Vacinas Anticâncer/imunologia , Glioblastoma/imunologia , Antígenos de Neoplasias/química , Antígenos de Neoplasias/metabolismo , Encéfalo/patologia , Neoplasias Encefálicas/diagnóstico , Neoplasias Encefálicas/patologia , Vacinas Anticâncer/administração & dosagem , Glioblastoma/diagnóstico , Glioblastoma/patologia , Humanos , Interferon gama/biossíntese , Interferon gama/genética , Células Matadoras Naturais/imunologia , Linfócitos do Interstício Tumoral/imunologia , Linfócitos do Interstício Tumoral/metabolismo , Imageamento por Ressonância Magnética , Gradação de Tumores , Peptídeos/imunologia , Peptídeos/metabolismo , Ligação Proteica , Linfócitos T/imunologia , Linfócitos T/metabolismo
5.
J Trauma ; 55(1): 106-11, 2003 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-12855888

RESUMO

OBJECTIVE: The purpose of this study was to determine the incidence of acute lung injury (ALI) in trauma patients with severe traumatic brain injury (TBI), to evaluate the impact of ALI on mortality and neurologic outcome after severe traumatic brain injury (TBI), and to identify whether the development of ALI correlates with the severity of TBI. METHODS: Clinical data were collected prospectively over a 4-year period in a Level I trauma center. Patients included in the study met the following criteria: mechanical ventilation > 24 hours, head Abbreviated Injury Scale score >or= 3, no other body region Abbreviated Injury Scale score >or= 3, and age between 18 and 54 years. ALI was defined using international consensus criteria. Glasgow Outcome Scale scores were assessed at 3 and 12 months. Bivariate comparisons were made between ALI and non-ALI groups. Multivariate analysis with stepwise logistical regression was used to assess independent factors on mortality. The patient's admission head computed tomographic (CT) scan was graded using the Marshall system, and the presence and size of specific intracranial abnormality was noted. Glasgow Coma Scale (GCS) score, Marshall CT scan score, and intracranial abnormality were correlated with the development of ALI. RESULTS: One hundred thirty-seven patients with isolated head trauma were enrolled in the study over a 4-year period. Thirty-one percent of patients with severe TBI developed ALI. Head trauma patients with ALI had a significantly higher ISS, a greater number of days on the ventilator, and a worse neurologic outcome for those who survived their hospitalization. Mortality was 38% in the ALI group and 15% in the non-ALI group (p = 0.004). Only 3 of 16 (19%) of the deaths within the ALI group were directly related to ALI. By multivariate analysis, only the presence of ALI, older age, and lower initial GCS score were associated with higher mortality. There was no association between ISS, the presence of arterial hypotension (arterial systolic pressure < 90 mm Hg) at admission to the hospital, or the amount of blood transfused and mortality. No correlation was found between the severity of head injury (GCS score, Marshall score, or intracranial abnormality) and development of ALI. CONCLUSION: The development of ALI is a critical independent factor affecting mortality in patients suffering traumatic brain injury and is associated with a worse long-term neurologic outcome in survivors. The risk of developing ALI is not associated with specific anatomic lesions diagnosed by cranial CT scanning.


Assuntos
Lesões Encefálicas/complicações , Síndrome do Desconforto Respiratório/etiologia , Centros de Traumatologia/estatística & dados numéricos , Escala Resumida de Ferimentos , Adulto , Lesões Encefálicas/classificação , Lesões Encefálicas/mortalidade , Escala de Coma de Glasgow , Humanos , São Francisco
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