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Progress in defining genomic fitness landscapes in cancer, especially those defined by copy number alterations (CNAs), has been impeded by lack of time-series single-cell sampling of polyclonal populations and temporal statistical models1-7. Here we generated 42,000 genomes from multi-year time-series single-cell whole-genome sequencing of breast epithelium and primary triple-negative breast cancer (TNBC) patient-derived xenografts (PDXs), revealing the nature of CNA-defined clonal fitness dynamics induced by TP53 mutation and cisplatin chemotherapy. Using a new Wright-Fisher population genetics model8,9 to infer clonal fitness, we found that TP53 mutation alters the fitness landscape, reproducibly distributing fitness over a larger number of clones associated with distinct CNAs. Furthermore, in TNBC PDX models with mutated TP53, inferred fitness coefficients from CNA-based genotypes accurately forecast experimentally enforced clonal competition dynamics. Drug treatment in three long-term serially passaged TNBC PDXs resulted in cisplatin-resistant clones emerging from low-fitness phylogenetic lineages in the untreated setting. Conversely, high-fitness clones from treatment-naive controls were eradicated, signalling an inversion of the fitness landscape. Finally, upon release of drug, selection pressure dynamics were reversed, indicating a fitness cost of treatment resistance. Together, our findings define clonal fitness linked to both CNA and therapeutic resistance in polyclonal tumours.
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Variaciones en el Número de Copia de ADN , Resistencia a Antineoplásicos , Neoplasias de la Mama Triple Negativas/genética , Animales , Línea Celular Tumoral , Cisplatino/farmacología , Células Clonales/patología , Femenino , Aptitud Genética , Humanos , Ratones , Modelos Estadísticos , Trasplante de Neoplasias , Proteína p53 Supresora de Tumor/genética , Secuenciación Completa del GenomaRESUMEN
Declining body size in fishes and other aquatic ectotherms associated with anthropogenic climate warming has significant implications for future fisheries yields, stock assessments and aquatic ecosystem stability. One proposed mechanism seeking to explain such body-size reductions, known as the gill oxygen limitation (GOL) hypothesis, has recently been used to model future impacts of climate warming on fisheries but has not been robustly empirically tested. We used brook trout (Salvelinus fontinalis), a fast-growing, cold-water salmonid species of broad economic, conservation and ecological value, to examine the GOL hypothesis in a long-term experiment quantifying effects of temperature on growth, resting metabolic rate (RMR), maximum metabolic rate (MMR) and gill surface area (GSA). Despite significantly reduced growth and body size at an elevated temperature, allometric slopes of GSA were not significantly different than 1.0 and were above those for RMR and MMR at both temperature treatments (15°C and 20°C), contrary to GOL expectations. We also found that the effect of temperature on RMR was time-dependent, contradicting the prediction that heightened temperatures increase metabolic rates and reinforcing the importance of longer-term exposures (e.g. >6â months) to fully understand the influence of acclimation on temperature-metabolic rate relationships. Our results indicate that although oxygen limitation may be important in some aspects of temperature-body size relationships and constraints on metabolic supply may contribute to reduced growth in some cases, it is unlikely that GOL is a universal mechanism explaining temperature-body size relationships in aquatic ectotherms. We suggest future research focus on alternative mechanisms underlying temperature-body size relationships, and that projections of climate change impacts on fisheries yields using models based on GOL assumptions be interpreted with caution.
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Salmonidae , Animales , Ecosistema , Oxígeno , Branquias , Temperatura , Trucha , Agua , Tamaño CorporalRESUMEN
BACKGROUND: In the development of eye and face protection standards against biological hazards, it is important to consider that the eye and face protectors may be used in the outdoor environment, where ultraviolet (UV) exposure from the sun is much higher than indoors. Workers affected include paramedics, ambulance officers and clinical testing personnel. METHODS: Spectral transmittances (280-780 nm) were measured on eight face shields and one goggle of the types used in hospital and clinical environments, three overhead projector sheets and an occupational impact protective goggle. The UV and luminous transmittances were calculated according to the international and two national sunglass standards, and compared with the compliance requirements. RESULTS: All the face shields and goggle lenses were made of variants of the same material. All the samples, including the overhead projector sheets, complied with the requirements of the sunglass standards (for normal conditions, in the case of the American standard). CONCLUSION: Since all the lenses complied with the sunglass standards for UV protection, and there appears to be uniformity in the choice of materials in this product type, there is no need to make provision, as is the case for occupational eye and face protection standards, for protectors that do not provide UV protection. This makes labelling and advice to end users from eyecare and safety professionals much simpler.
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Dispositivos de Protección de los Ojos , Anteojos , Protección Radiológica , Rayos Ultravioleta , Rayos Ultravioleta/efectos adversos , Humanos , Protección Radiológica/métodos , Exposición Profesional/prevención & control , Exposición Profesional/efectos adversosRESUMEN
BACKGROUND: Antibiotics are prescribed in >80% of outpatient acute rhinosinusitis (ARS) visits, despite the low incidence of bacterial infection. Previous studies have shown patient expectations are the most robust predictor of antibiotics prescription in ARS. However, patient perceptions are not well known or understood. OBJECTIVE: To understand patient perceptions regarding what drives or deters them from wanting, seeking, and taking antibiotic treatment of ARS. DESIGN: Iterative thematic analysis of semi-structured interviews. PARTICIPANTS: Nineteen adults diagnosed with ARS within the prior 60 days at the Northwestern Medicine General Internal Medicine clinic in Chicago, IL. MAIN MEASURES: Perceptions of patients with ARS. KEY RESULTS: We interviewed 19 patients, identifying the following drivers of antibiotic use: (1) symptoms, especially discolored rhinorrhea, and seeking relief, (2) belief that antibiotics are a convenient and/or effective way to relieve/cure sinusitis, and (3) desire for tangible outcomes of a clinic visit. For deterrents, the following themes emerged: (1) concern about antibiotic resistance, (2) preference for other treatments or preference to avoid medications, and (3) desire to avoid a healthcare visit. Patients identified that a trustworthy physician's recommendation for antibiotics was a driver, and a recommendation against antibiotics was a deterrent to taking antibiotics; a delayed antibiotic prescription also served as a deterrent. Antibiotic side effects were viewed neutrally by most participants, though they were a deterrent to some. CONCLUSIONS: Patients have misconceptions about the indications and effectiveness of antibiotics for ARS. Intimate knowledge of key antibiotic drivers and deterrents, from the perspective of patients with ARS, can be leveraged to engage and increase patients' knowledge, and set appropriate expectations for antibiotics for ARS.
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Rinitis , Sinusitis , Adulto , Humanos , Rinitis/tratamiento farmacológico , Rinitis/diagnóstico , Rinitis/microbiología , Antibacterianos/uso terapéutico , Sinusitis/tratamiento farmacológico , Sinusitis/diagnóstico , Sinusitis/microbiología , Pacientes , Atención Ambulatoria , Enfermedad AgudaRESUMEN
BACKGROUND: Variation in operative setting and surgical technique exists when treating specialty site melanomas. There are limited data comparing costs among surgical modalities. OBJECTIVE: To evaluate the costs of head and neck melanoma surgery performed with Mohs micrographic surgery or conventional excision in the operating room or office-based settings. METHODS: A retrospective cohort study was performed on patients aged 18 years and older with surgically treated head and neck melanoma in 2 cohorts, an institutional cohort and an insurance claims cohort, for the years 2008-2019. The primary outcome was total cost of care for a surgical encounter, provided in the form of insurance reimbursement data. A generalized linear model was used to adjust for covariates affecting differences between treatment groups. RESULTS: In the institutional and insurance claims cohorts, average adjusted treatment cost was highest in the conventional excision-operating room treatment group, followed by the Mohs surgery and conventional excision-office setting ( p < .001). CONCLUSION: These data demonstrate the important economic role the office-based setting has for head and neck melanoma surgery. This study allows cutaneous oncologic surgeons to better understand the costs of care involved in head and neck melanoma treatment. Cost awareness is important for shared decision-making discussions with patients.
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Melanoma , Neoplasias Cutáneas , Humanos , Cirugía de Mohs , Estudios Retrospectivos , Neoplasias Cutáneas/cirugía , Melanoma/cirugía , Costos de la Atención en Salud , Recurrencia Local de Neoplasia/cirugía , Melanoma Cutáneo MalignoRESUMEN
BACKGROUND: Mohs micrographic surgery may be discontinued with positive margins as an anticipated strategy for multidisciplinary care or as an unanticipated occurrence. Management of primary tumors has not been compared after anticipated versus unanticipated incomplete Mohs micrographic surgery (iMMS). OBJECTIVE: To compare rates and timing of adjuvant surgery after iMMS and final margin status when iMMS is anticipated versus unanticipated. Secondary outcomes were preoperative and intraoperative clinicopathologic factors associated with iMMS. METHODS: Cases of iMMS of keratinocyte carcinomas at a tertiary academic center between 2005 and 2022 were classified as anticipated (preoperative assembly of multidisciplinary teams) or unanticipated (ad hoc management of positive margins). Rate, timing, and final margin status of adjuvant surgery was compared between anticipated and unanticipated iMMS cohorts using χ2/Fisher exact test for categorical variables and t-test for continuous variables. RESULTS: Of 127 iMMS cases, 51.2% (65/127) were anticipated. Anticipated iMMS cases were more likely to undergo additional resection (98.5% vs 72.6%, p < .001), with fewer delays (3.9 vs 13.2 days, p < .001) and higher rates of final margin clearance (84.6% vs 59.7%, p < .001). CONCLUSION: When iMMS is anticipated as part of multidisciplinary care, patients are more likely to undergo additional resection, with fewer delays to next surgery and higher final margin clearance rates.
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Carcinoma Basocelular , Neoplasias Cutáneas , Humanos , Neoplasias Cutáneas/cirugía , Neoplasias Cutáneas/patología , Cirugía de Mohs , Tiempo de Tratamiento , Resultado del Tratamiento , Carcinoma Basocelular/cirugía , Carcinoma Basocelular/patología , Márgenes de Escisión , Estudios RetrospectivosRESUMEN
Hairy cell leukemia (HCL) is a rare hematologic disorder characterized by pancytopenia and splenomegaly for which a single course of cladribine is highly effective in inducing complete remissions. However, there is limited real-world data on outcomes and complications among geriatric patients with HCL treated with cladribine. We conducted a retrospective review of all patients 70 years or older within the Scripps Clinic HCL Database at the time of first treatment with cladribine. Of the 45 patients meeting inclusion criteria, 32 (71%) achieved CR and 4 (9%) achieved PR. Of the 9 remaining patients, 7 achieved normalization of peripheral blood counts after a single course of cladribine (complete hematologic response, CHR) and 2 had no response. The median duration of response for all responders was 119 months. Nine (20%) patients relapsed with a median time to first relapse of 28 months. Ten patients subsequently developed 12 primary malignancies with an excess frequency (observed-to-expected ratio) of 0.85 (95% confidence interval, 0.48-1.49). Median overall survival for the entire cohort was 166 months from time of HCL diagnosis and 119 months from time of first cladribine administration. Forty patient deaths were observed; the standardized mortality ratio (observed-to-expected ratio) was 1.42 (95% confidence interval, 1.03-1.96), representing a statistically significant increase in the risk of death (P = .03). This study supports the high rate of complete and durable responses following a single course of cladribine in geriatric patients.
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Antineoplásicos , Leucemia de Células Pilosas , Anciano , Antineoplásicos/uso terapéutico , Cladribina/uso terapéutico , Humanos , Leucemia de Células Pilosas/patología , Inducción de Remisión , Estudios RetrospectivosRESUMEN
BACKGROUND: Studies comparing 5-fluorouracil (5-FU), imiquimod, and photodynamic therapy with aminolevulinic acid (PDT-ALA) have evaluated the efficacy of destroying actinic keratosis (AK). However, this end point may not directly translate to cutaneous squamous cell carcinoma (cSCC) prevention. No study to date has evaluated these field therapies for cSCC prevention in the long term, defined as greater than 1-year posttreatment. OBJECTIVE: Determine the time to surgically treat invasive cSCC development after treatment with 5-FU, imiquimod, or PDT-ALA beginning 1-year posttreatment. METHODS: Retrospective cohort study using the Optum Clinformatics Data Mart database from 2012 to 2019 RESULTS: The rate of cSCC development in patients treated with 5-FU showed no significant difference compared with imiquimod (0.99; 95% CI, 0.90-1.08). PDT-ALA was worse than 5-FU (1.27; 95% CI, 1.19-1.36) and imiquimod (HR, 1.29; 95% CI, 1.17-1.43). Other known predictors of cSCC were consistent with previous literature. LIMITATIONS: The location of field therapy could not be determined with a claims database. CONCLUSIONS: 5-FU is not superior to imiquimod beginning 1 year posttreatment, despite previously demonstrated superior AK destruction efficacy, but was superior to PDT-ALA. Conflating AK destruction and cSCC prevention efficacy may not be appropriate. Future prospective studies should aim to use an end point of cSCC development.
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Carcinoma de Células Escamosas , Queratosis Actínica , Fotoquimioterapia , Neoplasias Cutáneas , Ácido Aminolevulínico , Carcinoma de Células Escamosas/tratamiento farmacológico , Carcinoma de Células Escamosas/epidemiología , Carcinoma de Células Escamosas/prevención & control , Fluorouracilo/uso terapéutico , Humanos , Imiquimod/uso terapéutico , Queratosis Actínica/tratamiento farmacológico , Fotoquimioterapia/efectos adversos , Fármacos Fotosensibilizantes , Estudios Prospectivos , Estudios Retrospectivos , Neoplasias Cutáneas/inducido químicamente , Neoplasias Cutáneas/tratamiento farmacológico , Neoplasias Cutáneas/prevención & control , Resultado del TratamientoRESUMEN
BACKGROUND: A fetal scalp electrode (FSE), first described by Edward Hon in 1967, is an intrapartum monitoring device embedded directly into the fetal scalp for an accurate measure of fetal heart rate. Though use of an FSE is generally safe, complications can occur from misplacement, including ophthalmic injury. CASE PRESENTATION: Patient was a 28-year-old G6P5006 who presented for induction of labor at 39 weeks due to asymptomatic bilateral pulmonary embolism. Concerning findings on external fetal monitoring led to placement of a fetal scalp electrode for close monitoring. Upon delivery, the neonate was noted to have the FSE embedded in the left upper eyelid. Ophthalmology was consulted and could not rule out ocular injury on external examination at the bedside. Examination under anesthesia in the operating room demonstrated no penetration of the ocular globe, and the eyelid laceration was sutured. The laceration was well-healing at one-week follow-up with no further complications. CONCLUSION: Facial or brow presentation during delivery is rare but may increase the risk for misplacement of an FSE. Ultrasound verification of vertex position is warranted immediately prior to placing an FSE for patients at higher risk of facial or brow presentation. Periorbital edema of neonates may protect against damage to deeper structures. However, Ophthalmology should be consulted to rule out ocular injury if the FSE is placed in the periocular region.
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Laceraciones , Cuero Cabelludo , Embarazo , Recién Nacido , Femenino , Humanos , Adulto , Laceraciones/etiología , Electrodos , Párpados/cirugía , Presentación en Trabajo de PartoRESUMEN
Populations within species often exhibit variation in traits that reflect local adaptation and further shape existing adaptive potential for species to respond to climate change. However, our mechanistic understanding of how the environment shapes trait variation remains poor. Here, we used common garden experiments to quantify thermal performance in eight populations of the marine snail Urosalpinx cinerea across thermal gradients on the Atlantic and the Pacific coasts of North America. We then evaluated the relationship between thermal performance and environmental metrics derived from time-series data. Our results reveal a novel pattern of 'mixed' trait performance adaptation, where thermal optima were positively correlated with spawning temperature (cogradient variation), while maximum trait performance was negatively correlated with season length (countergradient variation). This counterintuitive pattern probably arises because of phenological shifts in the spawning season, whereby 'cold' populations delay spawning until later in the year when temperatures are warmer compared to 'warm' populations that spawn earlier in the year when temperatures are cooler. Our results show that variation in thermal performance can be shaped by multiple facets of the environment and are linked to organismal phenology and natural history. Understanding the impacts of climate change on organisms, therefore, requires the knowledge of how climate change will alter different aspects of the thermal environment.
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Aclimatación , Adaptación Fisiológica , Cambio Climático , América del Norte , TemperaturaRESUMEN
Many species face extinction risks owing to climate change, and there is an urgent need to identify which species' populations will be most vulnerable. Plasticity in heat tolerance, which includes acclimation or hardening, occurs when prior exposure to a warmer temperature changes an organism's upper thermal limit. The capacity for thermal acclimation could provide protection against warming, but prior work has found few generalizable patterns to explain variation in this trait. Here, we report the results of, to our knowledge, the first meta-analysis to examine within-species variation in thermal plasticity, using results from 20 studies (19 species) that quantified thermal acclimation capacities across 78 populations. We used meta-regression to evaluate two leading hypotheses. The climate variability hypothesis predicts that populations from more thermally variable habitats will have greater plasticity, while the trade-off hypothesis predicts that populations with the lowest heat tolerance will have the greatest plasticity. Our analysis indicates strong support for the trade-off hypothesis because populations with greater thermal tolerance had reduced plasticity. These results advance our understanding of variation in populations' susceptibility to climate change and imply that populations with the highest thermal tolerance may have limited phenotypic plasticity to adjust to ongoing climate warming.
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Aclimatación , Termotolerancia , Adaptación Fisiológica , Cambio Climático , Ecosistema , TemperaturaRESUMEN
BACKGROUND: The impact of childhood atopic dermatitis (AD) and psoriasis on school absenteeism is not fully elucidated. OBJECTIVE: To determine the burden and predictors of chronic school absenteeism in children with AD and psoriasis. METHODS: Data were analyzed from the 1999-2015 Medical Expenditure Panel Surveys, cross-sectional, population-based studies of health status and function in the United States. RESULTS: Among 3132 and 200 children with AD and psoriasis, respectively, 1544 (67.7%) and 97 (62.5%) missed ≥1 day, and 120 (3.9%) and 5 (3.6%) missed ≥15 days (chronically absent) per year due to illness. AD was associated with chronic absenteeism overall (logistic regression; adjusted odds ratio 1.42, 95% CI [1.13-1.78]) and with more severe disease (mild-moderate: 1.33 [1.04-1.70], severe: 2.00 [1.21-3.32]). No statistical difference in chronic absenteeism was found for children with versus those without psoriasis (1.26 [0.51-3.12]). Parents of children with AD were more likely to miss work for caregiving versus those of children without AD, whereas parents of children with psoriasis had similar rates of work absenteeism versus those of children without psoriasis. LIMITATIONS: The severity of AD and psoriasis was assessed by treatment pattern. CONCLUSION: Children in the United States with AD had increased chronic school absenteeism. Further interventions are warranted to prevent school absenteeism in childhood AD.
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Dermatitis Atópica , Eccema , Psoriasis , Absentismo , Niño , Estudios Transversales , Dermatitis Atópica/epidemiología , Humanos , Padres , Psoriasis/epidemiología , Instituciones Académicas , Estados Unidos/epidemiologíaRESUMEN
BACKGROUND: There is growing evidence that palliative care (PC) is associated with increased quality of life in children with cancer. Despite increasing recommendations in support of PC to improve pediatric oncology care, little is known about its patterns of use. METHODS: We analyzed the 2005-2011 National Inpatient Sample, a representative, cross-sectional sample of US hospital admissions. Our study cohort comprised 10 960 hospitalizations of children with cancer and high in-hospital mortality risk. Survey-weighted regression models were constructed to determine associations of person- and hospital-level characteristics with PC involvement and healthcare costs. RESULTS: Overall, 4.4% of hospitalizations included PC involvement. In regression models invoking stepwise variable selection, a shorter length of stay (PC vs no PC; mean: 23.9 vs 32.6 days), solid cancer (solid vs hematologic vs brain cancer; PC use: 7.4% vs 2.8% vs 5.5%), and older age (PC vs no PC; mean: 10.2 vs 8.9 years) were associated with PC use. PC utilization was also associated with lower overall and daily hospital costs. CONCLUSIONS: One in 20 pediatric inpatients with cancer and high mortality risk receives PC, with differential utilization by socio-economic groups. These results have significant implications for public health resource allocation and the delivery of pediatric PC as high-value care. Future research should focus on the development of new tools to help physicians assess when PC is appropriate for their patients.
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Niño Hospitalizado/estadística & datos numéricos , Recursos en Salud/estadística & datos numéricos , Necesidades y Demandas de Servicios de Salud , Mortalidad Hospitalaria/tendencias , Neoplasias/terapia , Cuidados Paliativos/estadística & datos numéricos , Adolescente , Niño , Preescolar , Estudios de Cohortes , Estudios Transversales , Femenino , Estudios de Seguimiento , Humanos , Lactante , Tiempo de Internación , Masculino , Neoplasias/patología , Neoplasias/psicología , Cuidados Paliativos/métodos , PronósticoRESUMEN
BACKGROUND: Previous studies showed a large inpatient burden of psoriasis in the United States. Less is known about the hospital readmission for psoriasis. OBJECTIVES: To determine the patterns and predictors of hospital readmission rates for psoriasis. METHODS: We analyzed data from the 2012-2014 Nationwide Readmissions Database, a representative sample of hospital readmissions in the United States. RESULTS: Among 2606 admissions for psoriasis, 216 had ≥1 readmissions for psoriasis (prevalence [95% confidence interval]: 8.3% [6.6%-10.0%]) and 918 for all-causes (35.2% [32.2%-38.3%]). The mean annual cost of first readmission for any reason was $3,500,141, with $8,357,961 for subsequent readmissions. In multivariable regression models, readmission for psoriasis was associated with ≥6 day-long index hospitalization (adjusted hazard ratio [95% confidence interval]: 1.82 [1.06-3.12]), teaching hospital (1.93 [1.13-3.31]), comorbid skin infection (2.13 [1.11-4.08]), and hospitalization in the autumn (4.51 [2.54-8.00]), but inversely associated with other infections (0.49 [0.26-0.92]). Readmissions for psoriasis increased from 2012 to 2014 (1.93 [1.26-2.93]). LIMITATIONS: No data on psoriasis characteristics. CONCLUSION: Inpatients with psoriasis had high rates of readmission overall but low rates of readmission for psoriasis per se. A subset of psoriasis patients was hospitalized repeatedly and responsible for most inpatients costs. Future interventions are needed to lower readmission rates among psoriasis patients.
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Costo de Enfermedad , Readmisión del Paciente/tendencias , Psoriasis/economía , Enfermedades Cutáneas Infecciosas/epidemiología , Adolescente , Adulto , Comorbilidad , Bases de Datos Factuales/estadística & datos numéricos , Femenino , Predicción , Costos de Hospital/estadística & datos numéricos , Costos de Hospital/tendencias , Humanos , Tiempo de Internación/economía , Tiempo de Internación/estadística & datos numéricos , Tiempo de Internación/tendencias , Estudios Longitudinales , Masculino , Persona de Mediana Edad , Readmisión del Paciente/economía , Readmisión del Paciente/estadística & datos numéricos , Psoriasis/epidemiología , Psoriasis/inmunología , Psoriasis/terapia , Factores de Riesgo , Enfermedades Cutáneas Infecciosas/economía , Enfermedades Cutáneas Infecciosas/inmunología , Enfermedades Cutáneas Infecciosas/terapia , Factores de Tiempo , Estados Unidos/epidemiología , Adulto JovenRESUMEN
BACKGROUND: There is no current consensus on the best criteria for selective shunting during carotid endarterectomy (CEA). The choice of continuous neurologic assessment during awake CEA, intraoperative electroencephalogram, or carotid stump pressure monitoring as the basis for shunt placement is primarily dependent on surgeon preference. Our goal is to define a safe stump pressure threshold as a guide for selective shunting. METHODS: The study is a single-surgeon retrospective review of consecutive patients who underwent CEA under general anesthesia with selective shunting based on intraoperative stump pressure measurements from 2001 to 2019. Demographic and periprocedural variables were analyzed using standard statistical techniques. RESULTS: Among 399 patients, 68% were male with a mean age of 70. One-third of the patients were symptomatic, with amaurosis fugax in 12%, transient ischemic attack in 7%, and stroke in 16%. In total, 60 (15%) patients underwent shunting: 34 for a confirmed preoperative acute ischemic stroke, 22 for a stump pressure <30 mm Hg, and 4 for other indications. Overall 30-day death, ischemic ipsilateral stroke, myocardial infarction, and cranial nerve palsy rates were 0.5%, 0.8%, 1.8%, and 1.0%, respectively. No strokes occurred due to hypoperfusion, and all stroke symptoms resolved prior to discharge with a mean length of stay of 1.6 days. CONCLUSIONS: This is one of the largest contemporary series of CEA using a 30 mm Hg threshold for selective shunting that demonstrated exceedingly low 30-day death and stroke events. Intraoperative carotid stump pressure measurements are a useful guide for selective shunting and reduction in perioperative stroke complications after CEA.
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Presión Arterial , Isquemia Encefálica/prevención & control , Arterias Carótidas/cirugía , Estenosis Carotídea/cirugía , Endarterectomía Carotidea , Accidente Cerebrovascular/prevención & control , Anciano , Anciano de 80 o más Años , Isquemia Encefálica/etiología , Isquemia Encefálica/mortalidad , Isquemia Encefálica/fisiopatología , Arterias Carótidas/fisiopatología , Estenosis Carotídea/complicaciones , Estenosis Carotídea/mortalidad , Estenosis Carotídea/fisiopatología , Constricción , Endarterectomía Carotidea/efectos adversos , Endarterectomía Carotidea/mortalidad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Factores de Riesgo , Accidente Cerebrovascular/etiología , Accidente Cerebrovascular/mortalidad , Accidente Cerebrovascular/fisiopatología , Factores de Tiempo , Resultado del TratamientoRESUMEN
BACKGROUND: Endovascular aneurysm repair (EVAR) is currently the most common treatment of abdominal aortic aneurysms. Potential predictors of long-term survival after EVAR include physiologic, functional, and cognitive status, but assessments of these conditions have been difficult to standardize. Objective radiographic findings, such as skeletal muscle atrophy, or sarcopenia, may provide an additional means for selection of patients. This study investigates sarcopenia as a method to predict 1-year survival in patients undergoing EVAR. METHODS: A single-institution retrospective review was conducted of all patients who underwent elective EVAR from September 2002 to June 2014. Patients with an available periprocedural computed tomography (CT) scan and clinical data were included in the analysis. Normalized total psoas cross-sectional area (nTPA) was measured on axial CT images using the area of the bilateral psoas muscle at the third lumbar vertebral level normalized to the square of patient height. A threshold for optimal estimate of sarcopenia based on nTPA was determined using a receiver operating characteristic curve. Sarcopenia was evaluated as an independent risk predictor using univariate, multivariate, and survival analysis. RESULTS: A total of 272 EVAR-treated patients were evaluated, including 237 men and 35 women with a median age of 72 years and mean body mass index of 28.6 kg/m2. There was a significant increase in overall mortality in patients in the lowest quartile of nTPA (Q1, 23.53%; Q2, 13.24%; Q3, 7.35%; Q4, 5.88%; P = .01). The estimated nTPA threshold for increased mortality after EVAR was 500 mm2/m2. Using this threshold, sarcopenia accounted for 57% of the risk effect in our 1-year survival model. CONCLUSIONS: Sarcopenia can assist in identifying EVAR candidates who are less likely to benefit from surgery. It can be readily evaluated from preoperative CT scans and may be a useful tool in evaluation of abdominal aortic aneurysm patients with applications in risk evaluation and telemedicine.
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Aneurisma de la Aorta Abdominal/cirugía , Implantación de Prótesis Vascular/efectos adversos , Procedimientos Quirúrgicos Electivos/efectos adversos , Procedimientos Endovasculares/efectos adversos , Sarcopenia/epidemiología , Anciano , Anciano de 80 o más Años , Aneurisma de la Aorta Abdominal/complicaciones , Aneurisma de la Aorta Abdominal/mortalidad , Implantación de Prótesis Vascular/métodos , Procedimientos Quirúrgicos Electivos/métodos , Procedimientos Endovasculares/métodos , Femenino , Estudios de Seguimiento , Humanos , Estimación de Kaplan-Meier , Masculino , Selección de Paciente , Valor Predictivo de las Pruebas , Músculos Psoas/diagnóstico por imagen , Estudios Retrospectivos , Medición de Riesgo/métodos , Factores de Riesgo , Sarcopenia/diagnóstico , Sarcopenia/etiología , Tomografía Computarizada por Rayos X , Resultado del TratamientoRESUMEN
BACKGROUND: Decreasing readmissions is a health care priority in the United States. However, little is kanown about the determinants of hospital readmissions for atopic dermatitis (AD). OBJECTIVE: To determine readmission rates among inpatients hospitalized for AD in the United States. METHODS: We analyzed the 2012-2014 Nationwide Readmission Database, including a representative, cross-sectional sample of hospital readmissions in the United States. RESULTS: Overall, 17.0% of inpatients with AD were readmitted within 1 year for all causes, including 12.5% with only a single readmission and 4.6% for AD. In multivariable Cox proportional hazards regression models, hospital readmission for AD was associated with below-median household income, being uninsured, having a prolonged initial hospitalization, but inversely associated with older age and a diagnosis of infection. Inpatients admitted for AD on a weekend, in the summer, or in autumn were more likely to be readmitted for AD. Hospital characteristics associated with readmission for AD included nonmetropolitan hospital location and hospital teaching status. CONCLUSION: One in 5 inpatients with AD are readmitted within 1 year for all causes. There are socioeconomic and health care disparities in readmission rates for AD.
Asunto(s)
Dermatitis Atópica/terapia , Hospitalización/estadística & datos numéricos , Readmisión del Paciente/estadística & datos numéricos , Adolescente , Adulto , Estudios Transversales , Bases de Datos Factuales/estadística & datos numéricos , Femenino , Humanos , Tiempo de Internación/estadística & datos numéricos , Masculino , Persona de Mediana Edad , Modelos de Riesgos Proporcionales , Estados Unidos , Adulto JovenRESUMEN
BACKGROUND: Symptoms of anxiety and depression appear to contribute to the overall burden of atopic dermatitis (AD). However, the burden of mental health symptoms and psychological distress in AD have not been fully elucidated. OBJECTIVE: To determine the prevalence and predictors of depressive symptoms and psychological distress among US adults with AD and how they compare with psoriasis and other disorders. METHODS: We analyzed the 2004-2015 Medical Expenditure Panel Surveys, a representative sample of US adults. Patient Health Questionnaire-2 (PHQ-2) and Kessler-6 index (K-6) scores assessed depressive symptoms and psychological distress, respectively. RESULTS: Atopic dermatitis in adults is associated with increased odds of screening positive for depressive symptoms (PHQ-2 ≥2) (44.3% vs 21.9%; adjusted odds ratio [aOR] [95% confidence interval (CI)]: 2.86 [1.14, 7.16]) and severe psychological distress (K-6≥13) (25.9% vs 5.5%; 6.04 [2.28, 15.99]). Adults with vs without AD had increased K6 scores overall (linear regression, P = .04) and severe psychological distress in particular (K-6≥13; logistic regression; adjusted odds ratio [95% CI]: 6.04 [2.28, 15.99]). K-6 scores were associated with lower household income (linear regression; adjusted beta [95% CI]: 6.22 [0.88, 11.56]) and middle income (4.49 [0.39, 8.59]), but inversely associated with black (-7.36 [-11.70, -3.03]) and multiracial/other (-2.85 [-5.67, -0.03]) race/ethnicity. CONCLUSION: Atopic dermatitis is associated with more depressive symptoms and psychological distress overall, and even worse than many other chronic diseases. These findings highlight the need for clinicians to consider screening for and monitoring mental health symptoms in AD patients. Future studies are needed to develop interventions to reduce psychological distress in AD.
Asunto(s)
Ansiedad/epidemiología , Depresión/epidemiología , Trastorno Depresivo/epidemiología , Dermatitis Atópica/epidemiología , Distrés Psicológico , Adolescente , Adulto , Ansiedad/psicología , Depresión/psicología , Dermatitis Atópica/psicología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Prevalencia , Estrés Psicológico/epidemiología , Estrés Psicológico/psicología , Estados Unidos/epidemiología , Adulto JovenAsunto(s)
Carcinoma Basocelular , Carcinoma de Células Escamosas , Enfermedades de la Uña , Neoplasias Cutáneas , Humanos , Carcinoma de Células Escamosas/cirugía , Carcinoma de Células Escamosas/patología , Neoplasias Cutáneas/cirugía , Neoplasias Cutáneas/patología , Cirugía de Mohs , Uñas/cirugía , Uñas/patología , Enfermedades de la Uña/cirugía , Enfermedades de la Uña/patología , Recurrencia Local de Neoplasia/epidemiología , Recurrencia Local de Neoplasia/cirugía , Estudios Retrospectivos , Carcinoma Basocelular/cirugíaRESUMEN
BACKGROUND: Endovascular aortic aneurysm repair (EVAR) is the preferred first-line treatment for abdominal aortic aneurysms. Current postprocedure surveillance recommendations by manufacturers are a 1-month computed tomography angiography (CTA) followed by a 12-month CTA in most circumstances. The objective of this study is to determine the utility of the 1-month CTA following elective EVAR and determine if initial surveillance at 6-month CTA is appropriate. METHODS: A single-center retrospective chart review of all elective EVARs at a tertiary medical center over a 12-year period was conducted. Patients were excluded if postoperative surveillance imaging was not available. Data analysis encompassed demographics, chart review, and imaging including angiogram and cross-sectional imaging to asses for endoleaks and other findings. RESULTS: There were 363 patients who underwent elective EVAR and had available postoperative imaging during the study period. Within the 1-month follow-up, a CTA group of 316 patients was detected with 98 (31%) endoleaks. Of these, 5 (1.5%) required intervention: 1 for infolding of an iliac limb and 4 for type I endoleak which was present on completion angiogram-3 in patients treated outside of instructions for use and 1 with a type Ib endoleak on intraoperative completion imaging. In the 158 patients with 1 and 3-month CTAs, there were 47 persistent endoleaks, 9 previously undetected endoleaks not seen in 1-month CTA, and 13 resolved endoleaks. Three patients (1.2%) underwent intervention for type II endoleak and aneurysm expansion. In 47 patients with only a 6-month CTA, there were 16 endoleaks not seen on completion angiography and 2 of which were treated with reintervention-1 for a type I endoleak and 1 for a type II endoleak. CONCLUSIONS: There is limited utility to 1-month surveillance CTA in patients undergoing elective EVAR within the device instructions for use that has no evidence of type I endoleak on completion angiography. It is safe to start routine EVAR surveillance at 6 months in this patient population. This has implications when considering bundled and value-based payments in the longitudinal care of abdominal aortic aneurysm patients.