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1.
Proc Natl Acad Sci U S A ; 117(49): 31259-31266, 2020 12 08.
Artigo em Inglês | MEDLINE | ID: mdl-33229553

RESUMO

Triclosan (TCS), employed as an antiseptic and disinfectant, comes into direct contact with humans through a plethora of consumer products and its rising environmental release. We have demonstrated that TCS promotes liver tumorigenesis in mice, yet the biological and molecular mechanisms by which TCS exerts its toxicity, especially in early stages of liver disease, are largely unexplored. When mice were fed a high-fat diet (HFD), we found that fatty liver and dyslipidemia are prominent early signs of liver abnormality induced by TCS. The presumably protective HFD-induced hepatic expression of the metabolic regulator fibroblast growth factor 21 (FGF21) was blunted by TCS. TCS-altered Fgf21 expression aligned with aberrant expression of genes encoding metabolic enzymes manifested as profound systemic metabolic changes that disturb homeostasis of amino acids, fatty acids, and glucose. Using a type 1 diabetic animal model, TCS potentiates and accelerates the development of steatohepatitis and fibrosis, accompanied by increased levels of hepatic lipid droplets and oxidative stress. Analysis of fecal samples revealed that HFD-fed mice exhibited a reduction in fecal species richness, and that TCS further diminished microbial diversity and shifted the bacterial community toward lower Bacteriodetes and higher Firmicutes, resembling changes in microbiota composition in nonalcoholic steatohepatitis (NASH) patients. Using reverse-genetic approaches, we demonstrate that, along with HFD, TCS induces hepatic steatosis and steatohepatitis jointly regulated by the transcription factor ATF4 and the nuclear receptor PPARα, which participate in the transcriptional regulation of the Fgf21 gene. This study provides evidence linking nutritional imbalance and exposure to TCS with the progression of NASH.


Assuntos
Fatores de Crescimento de Fibroblastos/genética , Hepatopatia Gordurosa não Alcoólica/tratamento farmacológico , PPAR alfa/genética , Triclosan/farmacologia , Animais , Dieta Hiperlipídica/efeitos adversos , Modelos Animais de Doenças , Ácidos Graxos/biossíntese , Fatores de Crescimento de Fibroblastos/antagonistas & inibidores , Regulação da Expressão Gênica/efeitos dos fármacos , Humanos , Fígado/efeitos dos fármacos , Fígado/patologia , Cirrose Hepática/tratamento farmacológico , Cirrose Hepática/etiologia , Cirrose Hepática/genética , Cirrose Hepática/patologia , Camundongos , Hepatopatia Gordurosa não Alcoólica/etiologia , Hepatopatia Gordurosa não Alcoólica/genética , Hepatopatia Gordurosa não Alcoólica/patologia , Obesidade/tratamento farmacológico , Obesidade/etiologia , Obesidade/genética , Obesidade/patologia
2.
J Vasc Interv Radiol ; 33(6): 668-677.e1, 2022 06.
Artigo em Inglês | MEDLINE | ID: mdl-35301128

RESUMO

PURPOSE: To model the effect of the injection location on the distribution of yttrium-90 (90Y) microspheres in the liver during radioembolization using computational simulation and to determine the potential effects of radial movements of the catheter tip. MATERIALS AND METHODS: Numerical studies were conducted using images from a representative patient with hepatocellular carcinoma. The right hepatic artery (RHA) was segmented from contrast-enhanced cone-beam computed tomography scans. The blood flow was investigated in the trunk of the RHA using numerical simulations for 6 injection position scenarios at 2 sites located at a distance of approximately 5 and 20 mm upstream of the first bifurcation (RHA diameters of approximately 4.6 mm). The 90Y delivery to downstream vessels was calculated from the simulated hepatic artery hemodynamics. RESULTS: Varying the injection location along the RHA and across the vessel cross-section resulted in different simulated microsphere distributions in the downstream vascular bed. When the catheter tip was 5 mm upstream of the bifurcation, 90Y distribution in the downstream branches varied by as much as 53% with a 1.5-mm radial movement of the tip. However, the catheter radial movement had a weaker effect on the microsphere distribution when the injection plane was farther from the first bifurcation (20 mm), with a maximum delivery variation of 9% to a downstream branch. CONCLUSIONS: An injection location far from bifurcations is recommended to minimize the effect of radial movements of the catheter tip on the microsphere distribution.


Assuntos
Carcinoma Hepatocelular , Embolização Terapêutica , Neoplasias Hepáticas , Carcinoma Hepatocelular/diagnóstico por imagem , Carcinoma Hepatocelular/radioterapia , Embolização Terapêutica/efeitos adversos , Embolização Terapêutica/métodos , Artéria Hepática/patologia , Humanos , Neoplasias Hepáticas/irrigação sanguínea , Neoplasias Hepáticas/diagnóstico por imagem , Neoplasias Hepáticas/radioterapia , Microesferas , Radioisótopos de Ítrio/efeitos adversos
3.
J Vasc Interv Radiol ; 33(2): 150-158.e1, 2022 02.
Artigo em Inglês | MEDLINE | ID: mdl-34774929

RESUMO

PURPOSE: To investigate the degree to which morbidity and mortality (M&M) conferencing is utilized in interventional radiology (IR), identify impediments to its adoption, and assess the experience of those using this tool. MATERIALS AND METHODS: Members of the Society of Interventional Radiology (SIR) were offered a 9-question survey of practices and experiences regarding M&M conferencing within their quality assessment (QA) programs. RESULTS: Among 604 respondents, 37.8% were university-based practitioners and 60% were from outside of university practices. Of all respondents, 43% reported practicing 100% IR, with 28.5% practicing IR 75%-99% and 11% practicing IR <50% of the time. The use of M&M conferencing was significantly greater in university practices (90.7%) than in nonuniversity practices (37.1%) and among practitioners performing at least 75% IR (71.2%) than among those practicing <75% (28.8%). The conferences were held monthly (66.6%) or more often, and the majority (56%) of the events identified were scored using the SIR severity score. Approximately 20% of M&M conferences were multidisciplinary, shared most commonly with vascular surgery. The reasons cited for not using M&M included the lack of time and the logistical challenges of the process. However, among those who participate in M&M conferences, the QA goals of the conference were met at very high rates. CONCLUSIONS: M&M conferencing is well established in university IR programs and among full-time practitioners but much less so elsewhere. For those sites that do not utilize M&M conferencing, there may be a considerable benefit to addressing the obstacles that are limiting their implementation of this tool.


Assuntos
Melhoria de Qualidade , Radiologistas , Humanos , Morbidade , Radiologia Intervencionista , Inquéritos e Questionários
4.
Ann Surg Oncol ; 28(2): 867-876, 2021 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-32964371

RESUMO

BACKGROUND: Enhanced recovery after surgery (ERAS) pathways are well established in certain surgical specialties because findings have shown significant improvements in outcomes. Convincing literature in head and neck cancer (HNC) surgery is lacking. This study aimed to assess the effect of an ERAS pathway on National Surgical Quality Improvement Program (NSQIP)-based occurrences and pain-related outcomes in HNC surgery. METHODS: The study matched 200 patients undergoing head and neck oncologic surgery on an ERAS pathway between 1 March 2016 and 31 March 2019 with control subjects (1:1 ratio) during the same period. Demographic and perioperative data collected from the NSQIP database were extracted. Pain scores and medication usage were electronically extracted from our electronic medical record system and compared. Risk factors for high opioid usage also were assessed. RESULTS: Both groups were statistically similar in baseline characteristics. The ERAS group had fewer planned intensive care unit (ICU) admissions (4% vs. 14%; p < 0.001), a shorter mean hospital stay (7.2 ± 2.3 vs. 8.7 ± 4.2 days; p < 0.001), and fewer overall complications (18.6% vs. 27.0%; p = 0.045). Morphine milligram equivalent requirements over 72 h were significantly reduced during 72 h in the ERAS group (138.8 ± 181.5 vs. 207.9 ± 205.5; p < 0.001). In the multivariate analysis, the risk factors for high opioid analgesic usage included preoperative opioid usage, age younger than 65 years, race, patient-controlled analgesia use, and ICU admission. CONCLUSION: The study findings showed that ERAS in HNC surgery can result in improved outcomes and resource use, and that these results are sustainable. The outcomes described in this report can be further used to optimize ERAS pathways.


Assuntos
Recuperação Pós-Cirúrgica Melhorada , Idoso , Analgésicos Opioides/uso terapêutico , Humanos , Tempo de Internação , Dor Pós-Operatória/tratamento farmacológico , Dor Pós-Operatória/etiologia , Assistência Perioperatória , Complicações Pós-Operatórias , Estudos Retrospectivos
5.
Cereb Cortex ; 30(4): 2057-2069, 2020 04 14.
Artigo em Inglês | MEDLINE | ID: mdl-31711132

RESUMO

Maternal nutrition is an important factor for infant neurodevelopment. However, prior magnetic resonance imaging (MRI) studies on maternal nutrients and infant brain have focused mostly on preterm infants or on few specific nutrients and few specific brain regions. We present a first study in term-born infants, comprehensively correlating 73 maternal nutrients with infant brain morphometry at the regional (61 regions) and voxel (over 300 000 voxel) levels. Both maternal nutrition intake diaries and infant MRI were collected at 1 month of life (0.9 ± 0.5 months) for 92 term-born infants (among them, 54 infants were purely breastfed and 19 were breastfed most of the time). Intake of nutrients was assessed via standardized food frequency questionnaire. No nutrient was significantly correlated with any of the volumes of the 61 autosegmented brain regions. However, increased volumes within subregions of the frontal cortex and corpus callosum at the voxel level were positively correlated with maternal intake of omega-3 fatty acids, retinol (vitamin A) and vitamin B12, both with and without correction for postmenstrual age and sex (P < 0.05, q < 0.05 after false discovery rate correction). Omega-3 fatty acids remained significantly correlated with infant brain volumes after subsetting to the 54 infants who were exclusively breastfed, but retinol and vitamin B12 did not. This provides an impetus for future larger studies to better characterize the effect size of dietary variation and correlation with neurodevelopmental outcomes, which can lead to improved nutritional guidance during pregnancy and lactation.


Assuntos
Encéfalo/diagnóstico por imagem , Encéfalo/crescimento & desenvolvimento , Aleitamento Materno/tendências , Desenvolvimento Infantil/fisiologia , Ácidos Graxos Ômega-3/administração & dosagem , Fenômenos Fisiológicos da Nutrição Materna/fisiologia , Adulto , Estudos de Coortes , Feminino , Humanos , Lactente , Recém-Nascido , Tamanho do Órgão/fisiologia , Gravidez , Estudos Prospectivos
6.
J Biomech Eng ; 143(1)2021 01 01.
Artigo em Inglês | MEDLINE | ID: mdl-32601676

RESUMO

Yttrium-90 (90Y) radioembolization is a minimally invasive procedure increasingly used for advanced liver cancer treatment. In this method, radioactive microspheres are injected into the hepatic arterial bloodstream to target, irradiate, and kill cancer cells. Accurate and precise treatment planning can lead to more efficient and safer treatment by delivering a higher radiation dose to the tumor while minimizing the exposure of the surrounding liver parenchyma. Treatment planning primarily relies on the estimated radiation dose delivered to tissue. However, current methods used to estimate the dose are based on simplified assumptions that make the dosimetry results unreliable. In this work, we present a computational model to predict the radiation dose from the 90Y activity in different liver segments to provide a more realistic and personalized dosimetry. Computational fluid dynamics (CFD) simulations were performed in a 3D hepatic arterial tree model segmented from cone-beam CT angiographic data obtained from a patient with hepatocellular carcinoma (HCC). The microsphere trajectories were predicted from the velocity field. 90Y dose distribution was then calculated from the volumetric distribution of the microspheres. Two injection locations were considered for the microsphere administration, a lobar and a selective injection. Results showed that 22% and 82% of the microspheres were delivered to the tumor, after each injection, respectively, and the combination of both injections ultimately delivered 49% of the total administered 90Y microspheres to the tumor. Results also illustrated the nonhomogeneous distribution of microspheres between liver segments, indicating the importance of developing patient-specific dosimetry methods for effective radioembolization treatment.


Assuntos
Neoplasias Hepáticas , Carcinoma Hepatocelular , Humanos , Hidrodinâmica , Radiometria , Radioisótopos de Ítrio
7.
Cereb Cortex ; 29(3): 1218-1229, 2019 03 01.
Artigo em Inglês | MEDLINE | ID: mdl-29425270

RESUMO

The normal development of thalamocortical connections plays a critical role in shaping brain connectivity in the prenatal and postnatal periods. Recent studies using advanced magnetic resonance imaging (MRI) techniques in neonates and infants have shown that abnormal thalamocortical connectivity is associated with adverse neurodevelopmental outcomes. However, all these studies have focused on a single neuroimaging modality, overlooking the dynamic relationship between structure and function at this early stage. Here, we study the relationship between structural and functional thalamocortical connectivity patterns derived from healthy full-term infants scanned with diffusion-weighted MRI and resting-state functional MRI within the first weeks of life (mean gestational age = 39.3 ± 1.2 weeks; age at scan = 24.2 ± 7.9 days). Our results show that while there is, in general, good spatial agreement between both MRI modalities, there are regional variations that are system-specific: regions involving primary-sensory cortices exhibit greater structural/functional overlap, whereas higher-order association areas such as temporal and posterior parietal cortices show divergence in spatial patterns of each modality. This variability illustrates the complementarity of both modalities and highlights the importance of multimodal approaches.


Assuntos
Córtex Cerebral/anatomia & histologia , Córtex Cerebral/crescimento & desenvolvimento , Tálamo/anatomia & histologia , Tálamo/crescimento & desenvolvimento , Mapeamento Encefálico , Desenvolvimento Infantil , Imagem de Difusão por Ressonância Magnética , Feminino , Idade Gestacional , Humanos , Lactente , Imageamento por Ressonância Magnética , Masculino , Vias Neurais/anatomia & histologia , Vias Neurais/crescimento & desenvolvimento
8.
J Vasc Interv Radiol ; 30(2): 250-256.e1, 2019 02.
Artigo em Inglês | MEDLINE | ID: mdl-30717959

RESUMO

PURPOSE: To evaluate the statewide variability in the role of different specialties in lower extremity endovascular revascularization (LEER) and associated submitted charges of care and actual reimbursement for Medicare beneficiaries. METHODS: The 2015 "Medicare Provider Utilization and Payment Data: Physician and Other Supplier" data includes provider-specific information regarding the type of service, submitted average charges of care, and actual average Medicare reimbursements per Healthcare Common Procedure Coding System (HCPCS) code per provider. All HCPCS codes related to LEER were identified. The role of vascular surgery (VS), interventional cardiology (IC), and interventional radiology (IR) in each HCPCS-specific intervention was investigated. RESULTS: In 2015, 4113 providers submitted claims for iliac (n = 13,659), femoropopliteal (n = 52,344), and tibioperoneal (n = 32,688) endovascular revascularizations. In the facility setting, VS performed most of these procedures (52%), followed by IC (32%) and IR (8%). In the outpatient-based lab setting, the proportions were 46%, 36%, and 13%, respectively. Substantial statewide variability in the role of different specialties in LEER was noted. In Maine, Vermont, and Hawaii, all facility claims were submitted by VS, while more than 70% of the claims in Arizona and Utah were submitted by IC. The highest share of LEER for IR was observed in Montana and North Dakota (50%). There was substantial statewide variability in the submitted charges. CONCLUSION: Currently, less than 10% of LEER procedures are being performed by IR. The statewide variability in the submitted charges of care by providers and actual reimbursement for Medicare beneficiaries were investigated in this study.


Assuntos
Procedimentos Endovasculares/tendências , Disparidades em Assistência à Saúde/tendências , Benefícios do Seguro/tendências , Extremidade Inferior/irrigação sanguínea , Medicare/tendências , Doença Arterial Periférica/cirurgia , Padrões de Prática Médica/tendências , Avaliação de Processos em Cuidados de Saúde/tendências , Especialização/tendências , Cardiologistas/tendências , Procedimentos Endovasculares/economia , Disparidades em Assistência à Saúde/economia , Humanos , Benefícios do Seguro/economia , Reembolso de Seguro de Saúde/tendências , Medicare/economia , Doença Arterial Periférica/diagnóstico por imagem , Doença Arterial Periférica/economia , Padrões de Prática Médica/economia , Avaliação de Processos em Cuidados de Saúde/economia , Radiologistas/tendências , Especialização/economia , Cirurgiões/tendências , Fatores de Tempo , Estados Unidos
9.
Proc Natl Acad Sci U S A ; 113(51): E8257-E8266, 2016 12 20.
Artigo em Inglês | MEDLINE | ID: mdl-27930301

RESUMO

Artificial transcription factors (ATFs) are precision-tailored molecules designed to bind DNA and regulate transcription in a preprogrammed manner. Libraries of ATFs enable the high-throughput screening of gene networks that trigger cell fate decisions or phenotypic changes. We developed a genome-scale library of ATFs that display an engineered interaction domain (ID) to enable cooperative assembly and synergistic gene expression at targeted sites. We used this ATF library to screen for key regulators of the pluripotency network and discovered three combinations of ATFs capable of inducing pluripotency without exogenous expression of Oct4 (POU domain, class 5, TF 1). Cognate site identification, global transcriptional profiling, and identification of ATF binding sites reveal that the ATFs do not directly target Oct4; instead, they target distinct nodes that converge to stimulate the endogenous pluripotency network. This forward genetic approach enables cell type conversions without a priori knowledge of potential key regulators and reveals unanticipated gene network dynamics that drive cell fate choices.


Assuntos
Linhagem da Célula , Reprogramação Celular , Fatores de Transcrição/metabolismo , Animais , Sítios de Ligação/genética , Chaperonina com TCP-1/metabolismo , Epigênese Genética , Fibroblastos/metabolismo , Regulação Neoplásica da Expressão Gênica , Redes Reguladoras de Genes , Biblioteca Genômica , Células HEK293 , Humanos , Camundongos , Domínios Proteicos , Engenharia de Proteínas , Análise de Sequência de RNA , Fatores de Transcrição/genética , Transcrição Gênica , Dedos de Zinco/genética
10.
Clin Transplant ; 32(4): e13217, 2018 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-29394514

RESUMO

OBJECTIVE: To compare outcomes between percutaneous transluminal angioplasty and stent placement in the treatment of transplant renal artery stenosis (TRAS). METHODS: We retrospectively studied patients who underwent angiography for TRAS between 1/1/2008 and 9/20/2016 at 1 center. We compared the rates of restenosis in patients who were treated with angioplasty alone vs those who were treated with stenting. Secondary outcomes included serum creatinine and blood pressure after intervention and graft and patient survival. RESULTS: A total of 82 patients were identified as having TRAS after angiography. Restenosis occurred in 28% (16 of 58) of the angioplasty patients compared with 8% (2 of 24) of the stented patients (P = .04). Repeat angiography occurred in 14% (8 of 58) of angioplasty patients vs 13% (3 of 24) of stented patients (P = .9). The stented group had significantly higher pre-intervention stenosis (71% vs 64%, P = .01) and lower postintervention stenosis (4% vs 30%, P < .001). Serum creatinine and blood pressures were not significantly different between the 2 groups at 30, 90, or 360 days postintervention. There was no statistically significant difference in graft or patient survival between groups (P = .37). CONCLUSIONS: Stent placement resulted in fewer cases of restenosis compared with angioplasty alone, although no benefit in terms of serum creatinine, blood pressure, or patient and graft survival was shown.


Assuntos
Angioplastia/métodos , Oclusão de Enxerto Vascular/cirurgia , Transplante de Rim/efeitos adversos , Obstrução da Artéria Renal/cirurgia , Stents , Adulto , Feminino , Seguimentos , Oclusão de Enxerto Vascular/etiologia , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Obstrução da Artéria Renal/etiologia , Estudos Retrospectivos
11.
J Magn Reson Imaging ; 45(3): 779-785, 2017 03.
Artigo em Inglês | MEDLINE | ID: mdl-27504713

RESUMO

PURPOSE: To determine the accuracy of ferumoxytol-enhanced magnetic resonance angiography (MRA) in assessing the severity of transplant renal artery stenosis (TRAS), using digital subtraction angiography (DSA) as the reference standard. MATERIALS AND METHODS: Our Institutional Review Board approved this retrospective, Health Insurance Portability and Accountability Act-compliant study. Thirty-three patients with documented clinical suspicion for TRAS (elevated serum creatinine, refractory hypertension, edema, and/or audible bruit) and/or concerning sonographic findings (elevated renal artery velocity and/or intraparenchymal parvus tardus waveforms) underwent a 1.5T MRA with ferumoxytol prior to DSA. All DSAs were independently reviewed by an interventional radiologist and served as the reference standard. The MRAs were reviewed by three readers who were blinded to the ultrasound and DSA findings for the presence and severity of TRAS. Sensitivity, specificity, and accuracy for identifying substantial stenoses (>50%) were determined. Intraclass correlation coefficients (ICCs) were calculated among readers. Mean differences between the percent stenosis from each MRA reader and DSA were calculated. RESULTS: On DSA, a total of 42 stenoses were identified in the 33 patients. The sensitivity, specificity, and accuracy of MRA in detecting substantial stenoses were 100%, 75-87.5%, and 95.2-97.6%, respectively, among the readers. There was excellent agreement among readers as to the percent stenosis (ICC = 0.82). MRA overestimated the degree of stenosis by 3.9-9.6% compared to DSA. CONCLUSION: Ferumoxytol-enhanced MRA provides high sensitivity, specificity, and accuracy for determining the severity of TRAS. Our results suggest that it can potentially be used as a noninvasive examination following ultrasound to reduce the number of unnecessary conventional angiograms. LEVEL OF EVIDENCE: 3 J. Magn. Reson. Imaging 2017;45:779-785.


Assuntos
Angiografia por Tomografia Computadorizada/métodos , Óxido Ferroso-Férrico , Transplante de Rim/efeitos adversos , Angiografia por Ressonância Magnética/métodos , Obstrução da Artéria Renal/diagnóstico por imagem , Obstrução da Artéria Renal/etiologia , Adulto , Idoso , Meios de Contraste , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Obstrução da Artéria Renal/patologia , Reprodutibilidade dos Testes , Estudos Retrospectivos , Sensibilidade e Especificidade , Índice de Gravidade de Doença
12.
AJR Am J Roentgenol ; 209(5): 1064-1073, 2017 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-28858538

RESUMO

OBJECTIVE: The objective of our study was to evaluate which spectral Doppler ultrasound parameters are useful in patients with clinical concern for transplant renal artery stenosis (TRAS) and create mathematically derived prediction models that are based on these parameters. MATERIALS AND METHODS: The study subjects included 120 patients with clinical signs of renal dysfunction who had undergone ultrasound followed by angiography (either digital subtraction angiography or MR angiography) between January 2005 and December 2015. Five ultrasound variables were evaluated: ratio of highest renal artery velocity to iliac artery velocity, highest renal artery velocity, spectral broadening, resistive indexes, and acceleration time. Angiographic studies were categorized as either showing no stenosis or showing stenosis. Reviewers assessed the ultrasound examinations for TRAS using all five variables, which we refer to as the full model, and using a reduced number of variables, which we refer to as the reduced-variable model; sensitivities and specificities were generated. RESULTS: Ninety-seven patients had stenosis and 23 had no stenosis. The full model had a sensitivity and specificity of 97% and 91%, respectively. The reduced-variable model excluded the ratio and resistive index variables without affecting sensitivity and specificity. We applied cutoff values to the variables in the reduced-variable model, which we refer to as the simple model. Using these cutoff values, the simple model showed a sensitivity and specificity of 96% and 83%. The simple model was able to categorize patients into four risk categories for TRAS: low, intermediate, high, and very high risk. CONCLUSION: We propose a simple model that is based on highest renal artery velocity, distal spectral broadening, and acceleration time to classify patients into risk categories for TRAS.


Assuntos
Transplante de Rim/efeitos adversos , Obstrução da Artéria Renal/diagnóstico por imagem , Obstrução da Artéria Renal/etiologia , Ultrassonografia Doppler Dupla , Angiografia Digital , Velocidade do Fluxo Sanguíneo , Feminino , Humanos , Angiografia por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Modelos Teóricos , Estudos Retrospectivos , Medição de Risco , Sensibilidade e Especificidade , Resistência Vascular
14.
AJR Am J Roentgenol ; 206(4): 783-6, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26866337

RESUMO

OBJECTIVE: The objective of our study was to assess the incidence of contrast-induced nephropathy (CIN), dialysis, and graft loss after direct intraarterial infusion of iodine-based contrast medium (CM) in renal allograft recipients. MATERIALS AND METHODS: One hundred patients underwent renal graft catheter arteriography between 2006 and 2014. CIN was defined as an increase in serum creatinine value of 0.5 mg/dL or more above the creatinine value before arteriography. CIN could be assessed in 37 patients with creatinine levels obtained before arteriography and 24-72 hours after arteriography. Dialysis requirement and renal allograft loss at 30 days after the procedure were recorded in all 100 patients. RESULTS: In the 37 patients who could be assessed for CIN, three patients (8%) met the criteria for CIN. In a subgroup analysis, there was an increased incidence of CIN in patients undergoing angiography alone (25%) compared with those in the angioplasty and stenting group (0%) (p = 0.028). At 30 days after the procedure, none (0/100) of the patients required dialysis or had graft failure. CONCLUSION: In a cohort of patients with a single renal allograft undergoing renal graft catheter arteriography using iodine-based CM, the overall incidence of CIN was low and no major adverse outcomes were noted at 30 days after the procedure. However, in a subgroup analysis, the patients who underwent arteriography alone-that is, without angioplasty or stenting-had a statistically significant higher rate of CIN.


Assuntos
Angiografia/métodos , Meios de Contraste/efeitos adversos , Iohexol/efeitos adversos , Nefropatias/induzido quimicamente , Transplante de Rim , Ácidos Tri-Iodobenzoicos/efeitos adversos , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Creatinina/sangue , Feminino , Rejeição de Enxerto , Humanos , Incidência , Nefropatias/epidemiologia , Masculino , Pessoa de Meia-Idade , Diálise Renal , Estudos Retrospectivos , Fatores de Risco
15.
Anesth Analg ; 121(3): 810-821, 2015 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-25551317

RESUMO

As of mid-October 2014, the ongoing Ebola epidemic in Western Africa has affected approximately 10,000 patients, approached a 50% mortality rate, and crossed political and geographic borders without precedent. The disease has spread throughout Liberia, Guinea, and Sierra Leone. Isolated cases have arrived in urban centers in Europe and North America. The exponential growth, currently unabated, highlights the urgent need for effective and immediate management protocols for the various health care subspecialties that may care for Ebola virus disease patients. We conducted a comprehensive review of the literature to identify key areas of anesthetic care affected by this disease. The serious potential for "high-risk exposure" and "direct contact" (as defined by the Centers for Disease Control and Prevention) of anesthesiologists caring for Ebola patients prompted this urgent investigation. A search was conducted using MEDLINE/PubMed, MeSH, Cochrane Review, and Google Scholar. Key words included "anesthesia" and/or "ebola" combined with "surgery," "intubation," "laryngoscopy," "bronchoscopy," "stethoscope," "ventilation," "ventilator," "phlebotomy," "venous cannulation," "operating room," "personal protection," "equipment," "aerosol," "respiratory failure," or "needle stick." No language or date limits were applied. We also included secondary-source data from government organizations and scientific societies such as the Centers for Disease Control and Prevention, World Health Organization, American Society of Anesthesiologists, and American College of Surgeons. Articles were reviewed for primary-source data related to inpatient management of Ebola cases as well as evidence-based management guidelines and protocols for the care of Ebola patients in the operative room, infection control, and health care worker personal protection. Two hundred thirty-six articles were identified using the aforementioned terminology in the scientific database search engines. Twenty articles met search criteria for information related to inpatient Ebola virus disease management or animal virology studies as primary or secondary sources. In addition, 9 articles met search criteria as tertiary sources, representing published guidelines. The recommendations developed in this article are based on these 29 source documents. Anesthesia-specific literature regarding the care of Ebola patients is very limited. Secondary-source guidelines and policies represent the majority of available information. Data from controlled animal experiments and tuberculosis patient research provide some evidence for the existing recommendations and identify future guideline considerations.


Assuntos
Anestesia/normas , Gerenciamento Clínico , Ebolavirus , Política de Saúde , Doença pelo Vírus Ebola/diagnóstico , Doença pelo Vírus Ebola/terapia , Guias de Prática Clínica como Assunto/normas , Anestesia/métodos , Animais , Ebolavirus/isolamento & purificação , Política de Saúde/legislação & jurisprudência , Doença pelo Vírus Ebola/epidemiologia , Humanos , Sociedades Médicas/normas , Organização Mundial da Saúde
17.
Curr Pharm Teach Learn ; 15(6): 573-580, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-37355382

RESUMO

INTRODUCTION: The purpose of this study is to evaluate emotional intelligence in doctor of pharmacy (PharmD) students at various points in the curriculum. METHODS: This was a cross-sectional, single site, observational study that included first- through fourth-year PharmD students, conducted from December 2021 to April 2022. The study used the Emotional Quotient Inventory, version 2.0 (EQ-i 2.0) to obtain student emotional intelligence scores. A survey in QualtricsSM (SAP) was used to obtain baseline characteristics. The primary endpoint was the mean total EQ-i 2.0 scores comparing professional years. Secondary endpoints included mean EQ-i 2.0 scores in the composite scales of self-perception, self-expression, interpersonal, decision-making and stress-management. Change in EQ-i 2.0 scores was evaluated using descriptive statistics and analysis of variance. Multivariable regression analysis identified associations between baseline characteristics and EQ-i 2.0 scores. RESULTS: A total of 137 (137/485, 28.2%) students completed the EQ-i 2.0 assessment. The mean (SD) total EQ-i 2.0 scores were 98.1 (15.5), 92.2 (15.9), 92.4 (12.9), and 103.5 (13.1), for first-, second- (P2), third- (P3), and fourth-year (P4) students, respectively. A statistically significant increase in total EQ-i 2.0 scores was noted in P4 students compared to P2 and P3 students. Work experience and leadership roles within student organizations may be associated with an increase in total EQ-i 2.0 scores. CONCLUSIONS: Emotional intelligence varied among students in different years of the pharmacy curriculum. P4 students were found to have the highest average emotional intelligence. The effect of curricular and co-curricular components on emotional intelligence development warrants further exploration.


Assuntos
Farmácia , Estudantes de Farmácia , Humanos , Estudos Transversais , Inteligência Emocional , Currículo , Estudantes de Farmácia/psicologia
18.
JAC Antimicrob Resist ; 5(2): dlad021, 2023 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-36936190

RESUMO

Objectives: To re-examine the use of non-carbapenems (NCBPs), specifically piperacillin/tazobactam and cefepime, for ESBL-producing Enterobacterales (ESBL-E) urinary tract infections (UTIs). Patients: Retrospective cohort study of adults hospitalized between January 2016 and June 2020 with pyuria on urinalysis, a urine culture positive for ESBL-E treated with a study antibiotic (meropenem, ertapenem, cefepime or piperacillin/tazobactam) and did not meet criteria for study exclusion. Methods: To compare carbapenems (CBPs) with cefepime or piperacillin/tazobactam for the treatment of ESBL-E UTI. The primary outcome was clinical cure, defined as complete resolution of signs and symptoms of infection. Secondary outcomes included in-hospital mortality, recurrence within 30 days and resistance emergence within 30 days. Results: One-hundred and thirty-three patients were included, based on definitive therapy received; 69 (51.9%) received CBP and 64 (48.1%) received NCBP therapy. Of the total patient population, 17 (12.8%) were admitted to the ICU, 84 (63.1%) had a complicated UTI and 64 (48.1%) had pyelonephritis. There was no difference in clinical cure between the CBP and NCBP groups (95.7% versus 96.9%, P = 0.999). Additionally, no differences in secondary outcomes were observed. Conclusions: When compared with CBPs, cefepime and piperacillin/tazobactam resulted in similar clinical cure, in-hospital mortality, recurrence and resistance emergence in the treatment of ESBL-E UTI.

19.
Cardiovasc Intervent Radiol ; 46(1): 43-48, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36509940

RESUMO

INTRODUCTION: Clinical outcomes of implantable port catheters (IPCs) placed via alternative veins such as the external jugular and cervical collaterals have not been well established. This investigation evaluates the short- and long-term outcomes of IPCs inserted via alternate cervical veins (ACV) compared to traditionally inserted IPCs via the internal jugular vein (IJV). MATERIALS AND METHODS: A total of 24 patients who received an IPC between 2010 and 2020 via an ACV-defined as the external jugular vein, superficial cervical vein, or unnamed collateral veins-were identified. Based on power analysis, a matched control group of 72 patients who received IPCs via the IJV was identified. Non-inferiority analysis for port complications was performed between the two groups based on the selected non-inferiority margin of 20%. Secondary end points included complication-free survival and comparison of complications by the time at which they occurred. RESULTS: ACV access was non-inferior to traditional access for overall complications. Alternate access resulted in fewer complications than traditional access with an estimated reduction of - 7.0% [95% CI - 23.6%, 39.7%]. There was no significant difference in peri-procedural and post-procedural complications between the two groups. Complication-free survival was also equivalent between the two groups. CONCLUSION: IPC placement via ACVs was non-inferior to IPCs placed via traditional access through the IJV. When abnormal pathology obviates the use of IJV access, other cervical veins may be considered prior to seeking alternate locations such as femoral, translumbar, inferior vena cava, and hepatic veins.


Assuntos
Cateterismo Venoso Central , Dispositivos de Acesso Vascular , Humanos , Cateterismo Venoso Central/métodos , Cateteres de Demora , Veias Jugulares , Veia Cava Inferior
20.
Oral Oncol ; 130: 105906, 2022 07.
Artigo em Inglês | MEDLINE | ID: mdl-35594776

RESUMO

BACKGROUND: Enhanced Recovery After Surgery (ERAS) pathways in head and neck cancer (HNC) have shown to improve perioperative outcomes and reduce complications. The longer term implications on adjuvant treatment and survival have not been studied. We hereby report the first study on the impact of an ERAS pathway on return to intended oncologic treatment (RIOT) and overall survival (OS) in HNC. METHODS: 200 patients undergoing head and neck oncologic surgery on an ERAS pathway between March 1, 2016 and March 31, 2019 were matched to controls over the same interval. Demographic, tumor and adjuvant therapy-related data were collected, including time to adjuvant therapy(TAT) and treatment package time(TPT). Risk factors for TAT > 42 days and TPT ≥ 85 days were assessed. OS was compared and risk factors for inferior OS determined. RESULTS: Baseline characteristics including co-morbidities and tumor stage were similar. Of 179 patients planned for adjuvant treatment, there was no difference in RIOT rate (89.0% vs 87.5%, p = 0.753), proportion of TAT > 42 days of surgery (55.6% vs 59.7%, p = 0.642), or TPT ≥ 85 days (48.1% vs 57.1, p = 0.258), for the ERAS and control groups, respectively. On multivariate analysis, alcohol use (OR 3.58; 95 %CI 1.11-11.52) and recurrent disease status (OR 2.88; 95 %CI 1.40-5.93) were independently associated with prolonged TAT. Three-year OS was similar between the ERAS and control groups (73% vs 76%, p = 0.521). CONCLUSION: ERAS has not shown to improve RIOT or OS in the current study. However, its benefit for perioperative outcomes is undeniable and further studies are required on longer term quality and survival outcomes.


Assuntos
Recuperação Pós-Cirúrgica Melhorada , Neoplasias de Cabeça e Pescoço , Neoplasias de Cabeça e Pescoço/cirurgia , Humanos , Tempo de Internação , Complicações Pós-Operatórias , Tumultos , Fatores de Risco
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