Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 27
Filtrar
Mais filtros

País/Região como assunto
Tipo de documento
Intervalo de ano de publicação
1.
Breast Cancer Res Treat ; 180(2): 471-479, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32040687

RESUMO

OBJECTIVE: To comprehensively describe the tumor and clinical characteristics of breast cancer in a cohort of male patients and to assess the factors that affect survival. BACKGROUND: Much of the standard care of male breast cancer is based on the diagnosis and treatment strategies of female breast cancer. However, important clinical differences between the two have been elucidated, which suggests the need for unique attention to male breast cancer. METHODS: We evaluated the records of male patients who were diagnosed with breast cancer between 2004 and 2015 using the National Cancer Database (NCDB). Data obtained were demographic characteristics, clinical and tumor data, type of therapy, as well as survival data. We used descriptive statistics to characterize our study population. We then performed a survival and Cox proportional hazards analysis. RESULTS: We identified 16,498 patients (median age: 63 years). Several treatment modalities were used, of which surgery was the most common (14,882 [90.4%]). The total follow-up time was 13 years (156 months). Five-year survival was 77.7% (95% CI 76.9-78.4) and 10-year survival was 60.7%. In a Cox proportional hazards model, mastectomy was associated with the greatest survival (hazard ratio [HR] 0.49; p < 0.001). CONCLUSION: We report what is to our knowledge the largest national population-based cohort of male breast cancer patients. Importantly, our data suggests that similar to female patients, several treatment modalities are significantly associated with improved survival in male patients, particularly surgery. Increasing age, black race, government insurance, more comorbidities, and higher tumor stages are associated with decreased survival.


Assuntos
Neoplasias da Mama Masculina/mortalidade , Carcinoma Intraductal não Infiltrante/mortalidade , Bases de Dados Factuais/estatística & dados numéricos , Neoplasias da Mama Masculina/metabolismo , Neoplasias da Mama Masculina/patologia , Neoplasias da Mama Masculina/terapia , Carcinoma Intraductal não Infiltrante/metabolismo , Carcinoma Intraductal não Infiltrante/patologia , Carcinoma Intraductal não Infiltrante/terapia , Terapia Combinada , Receptor alfa de Estrogênio/metabolismo , Seguimentos , Humanos , Seguradoras/estatística & dados numéricos , Masculino , Pessoa de Meia-Idade , Prognóstico , Receptor ErbB-2/metabolismo , Receptores de Progesterona/metabolismo , Estudos Retrospectivos , Taxa de Sobrevida , Estados Unidos
2.
Ann Plast Surg ; 85(3): 285-289, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-32788565

RESUMO

BACKGROUND: Recent studies of panniculectomy outcomes have reported variable complication rates ranging from 8.65% to 56%. Meanwhile, reported abdominoplasty complication rates are considerably lower (~4%). This discrepancy may be attributable to inaccurate inclusion of abdominoplasty patients in panniculectomy cohorts. We performed the current study to better characterize panniculectomy complication rates at a large tertiary care center. METHODS: We performed a retrospective review of patients who underwent abdominoplasty or panniculectomy at the Johns Hopkins Hospitals between 2010 and 2017. Patients were identified by Common Procedural Terminology codes (15847/17999, 15830) confirmed via the operative note. We examined postoperative complication rates including surgical site infection, seroma formation, wound dehiscence, readmission/reoperation, and postoperative length of stay (LOS). We used parametric and nonparametric methods to determine differences between abdominoplasty and panniculectomy outcomes, as well as logistic regression analysis to evaluate factors associated with patient outcomes following panniculectomy. RESULTS: Of the 306 patients included, 103 underwent abdominoplasty while 203 underwent panniculectomy. Initial complication rates following abdominoplasty and panniculectomy were 1.94% and 12.8%, respectively (P = 0.002). Thirty-day complication rates were 9.7% for abdominoplasty and 21.2% for panniculectomy (P = 0.012). The median LOS was 1 day (interquartile range, 0-1 day) for abdominoplasty and 2 days (interquartile range, 1-4 days) for panniculectomy (P = 0.002). No statistically significant differences in complication rates at 6 months and 1 year were observed. CONCLUSIONS: Panniculectomy offers many functional benefits including improved hygiene and enhanced mobility. However, this study demonstrates that panniculectomy patients may have significantly higher complication rates initially and 30 days postoperatively and longer LOS than individuals undergoing abdominoplasty.


Assuntos
Abdominoplastia , Lipectomia , Humanos , Tempo de Internação , Complicações Pós-Operatórias/epidemiologia , Reoperação , Estudos Retrospectivos
3.
Ann Plast Surg ; 84(4): 346-350, 2020 04.
Artigo em Inglês | MEDLINE | ID: mdl-31977528

RESUMO

INTRODUCTION: Breast implant-associated anaplastic large cell lymphoma (BIA-ALCL) is an emerging issue facing the medical community. Government organizations such as the US Food and Drug Administration and specialty groups including the American Society of Plastic Surgeons have published online resources about BIA-ALCL for patients. Given the complexity of the diagnosis, it is important that patients can easily read these resources. In this study, we examined the readability levels of online BIA-ALCL patient resources using multiple verified reading scores. METHODS: "BIA-ALCL" and "breast implant-associated anaplastic large cell lymphoma" were entered into 3 Internet search engines. The top 20 results for each were filtered by resource type and intended audience (physician vs patient). Published scientific articles, online database physician resources, and Web sites requiring subscriptions or fees were excluded. We then examined the readability of each with multiple verified reading scores, including the Flesch-Kincaid, Gunning-Fog, Coleman-Liau, Simplified Measure of Gobbledygook, and Automated Readability Index indices. Obtained data were analyzed using descriptive statistics and t test for independent samples. RESULTS: Fifteen Web sites qualified for further analysis. For all texts, the average readability level was measured between 12 and 13 years of education on each readability index or approximately 18 to 19 years old. The Flesch-Kincaid Reading Ease average was 43.16 ±10.9 on a scale of 1 to 100, corresponding to a "difficult" designation. When compared by search criteria (spelled-out vs abbreviated), the results for the abbreviation "BIA-ALCL" had higher education requirements than those with the condition spelled out. However, these differences were not statistically significant. There was also great variation in word and sentence measurements. Twelve of the 15 Web sites contained more than 15% complex words, having more than 3 syllables, with breastcancer.org having the lowest (11%) and plasticsurgery.org the highest (20%). DISCUSSION: Since the initial announcement in 2014 by the National Cancer Comprehensive Network, the medical community has begun educating ourselves and our patients about BIA-ALCL. Unfortunately, this study suggests that online patient resources on BIA-ALCL may be too complex for most readers, exceeding that of the average US resident (eighth grade) and Medicare beneficiary (fifth grade). Although the goal of learning more about BIA-ALCL and counseling patients appropriately remains paramount, we should continue to improve patient education materials given their vital role in healthcare decision-making.


Assuntos
Implantes de Mama , Letramento em Saúde , Linfoma Anaplásico de Células Grandes , Implantes de Mama/efeitos adversos , Compreensão , Humanos , Internet , Linfoma Anaplásico de Células Grandes/diagnóstico , Linfoma Anaplásico de Células Grandes/etiologia , Medicare , Estados Unidos
4.
Aesthet Surg J ; 40(6): NP394-NP401, 2020 05 16.
Artigo em Inglês | MEDLINE | ID: mdl-31563936

RESUMO

BACKGROUND: Malpractice litigation has a significant impact on healthcare costs and important professional implications for healthcare providers. OBJECTIVES: The authors sought to comprehensively characterize the litigation landscape in plastic surgery across its different subspecialties. METHODS: The authors utilized the Westlaw legal database to conduct a comprehensive search of malpractice cases in the United States in the following categories: cosmetic, reconstructive, hand, craniofacial, and gender affirmation surgery. They conducted both a Boolean and a natural language search to identify cases in which a plastic surgeon was the defendant. Data were analyzed employing descriptive statistics, logistic regression, and relative risk calculations. RESULTS: In total, 165 cases were included. Most surgeons accused of malpractice worked in a private setting (148 [90%]). Among the 22 (13%) cases that contained information on board certification status, most surgeons were board certified (17 [77%]). Resident involvement was mentioned in only 5 (3%) cases. The majority of cases were successfully defended by surgeons (98 [60%] vs 65 [40%]), particularly in craniofacial surgery (risk ratio: 1.54; P = 0.03; 95% CI: 1.03-2.3). Surgeons who successfully defended a case were more likely to benefit from summary judgment (P = 0.005). CONCLUSIONS: Malpractice litigation is commonplace in medical practice, and no specialty is spared. Legal outcomes were in favor of plastic surgeons in the majority of cases, particularly those that proceeded to summary judgment. Surgeons can avoid litigation by maintaining detailed office and surgical notes, always obtaining informed consent, adequately following and monitoring patients after surgery, and ensuring compliance by communicating frequently and effectively.


Assuntos
Imperícia , Procedimentos de Cirurgia Plástica , Cirurgiões , Cirurgia Plástica , Bases de Dados Factuais , Humanos , Consentimento Livre e Esclarecido , Estados Unidos
5.
Hematol Oncol ; 32(3): 139-44, 2014 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-24123108

RESUMO

There is no standard treatment for patients with gastric marginal zone B-cell lymphoma of the mucosa-associated lymphoid tissue (MALT lymphoma) who are resistant to, or ineligible for, anti-Helicobacter pylori (anti-HP) therapy. In this study, we investigated the activity of the rituximab, cyclophosphamide, vincristine and prednisone (R-CVP) regimen in patients with gastric MALT lymphoma. Patients were included provided they had untreated gastric MALT lymphoma (except for anti-HP therapy) and were resistant to, or ineligible for, anti-HP therapy. Treatment plan consisted of six to eight 21-day cycles of the R-CVP chemotherapy regimen. Toxicity, response, relapse and survival were evaluated. Twenty patients (12 women and 8 men) were included in the analyses with median age of 59 years. Thirteen patients (65%) had stage I tumours, and seven patients (35%) had stages II-IV tumours. The overall response rate was 100%, with 19 (95%) complete responses and one (5%) partial response. Regimen toxicity was mild and mainly hematological, and no cases of gastric bleeding or perforation occurred. After a median follow-up of 56.3 months, three patients had relapsed, and 19 patients remained alive (specific lymphoma survival 100%), of whom 17 had no evidence of disease. In our experience, the R-CVP regimen is a well-tolerated and effective treatment for patients with gastric MALT lymphoma who are resistant to, or ineligible for, anti-HP therapy.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Linfoma de Zona Marginal Tipo Células B/tratamento farmacológico , Neoplasias Gástricas/tratamento farmacológico , Adulto , Idoso , Idoso de 80 Anos ou mais , Anticorpos Monoclonais Murinos/administração & dosagem , Ciclofosfamida/administração & dosagem , Feminino , Seguimentos , Humanos , Linfoma de Zona Marginal Tipo Células B/mortalidade , Linfoma de Zona Marginal Tipo Células B/patologia , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Prednisona/administração & dosagem , Estudos Retrospectivos , Rituximab , Neoplasias Gástricas/mortalidade , Neoplasias Gástricas/patologia , Resultado do Tratamento , Vincristina/administração & dosagem
6.
Future Oncol ; 10(12): 1967-80, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25386813

RESUMO

The prognosis of follicular lymphoma (FL) has significantly improved over the last decade, particularly following the introduction of the anti-CD20 monoclonal antibody rituximab, which has challenged the old concept of FL as an incurable disease. However, the decision whether to start treatment in a patient with advanced FL or adopt a watch-and-wait policy remains a subject of controversy. Furthermore, the optimal first-line treatment for FL remains a clinical challenge owing to the numerous different therapeutic options available. In this review, the authors focus on the initial management of patients with newly diagnosed FL, consider the different treatment options for every stage, paying special consideration to the therapeutic approaches for each clinical scenario, and discuss future directions.


Assuntos
Linfoma Folicular/terapia , Ensaios Clínicos como Assunto , Humanos
8.
Clin Transl Oncol ; 26(8): 2070-2074, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38509430

RESUMO

PURPOSE: Tri-weekly carboplatin is an established neoadjuvant treatment for triple-negative breast cancer, enhancing pathological complete response (pCR) and overall survival. This study explores if weekly carboplatin provides lower toxicity and comparable pCR rates. METHODS/PATIENTS: A retrospective multicenter study (January 2021 to March 2023) compares outcomes of weekly and tri-weekly carboplatin. RESULTS: Among 104 participants, 60% received weekly and 40% tri-weekly treatments. Weekly administration had fewer discontinuations (56.5 vs. 70.7%, p = 0.154). Both schedules exhibited similar overall toxicity (p = 0.087), with slightly higher grade 3-4 toxicity in the tri-weekly group (56.1 vs. 48.4%, p = 0.126). Hematological toxicity was comparable, but the weekly group experienced more diarrhea (p = 0.432) and asthenia (p = 0.012). Weekly treatment correlated with more frequent breast-conserving surgeries (p = 0.004). pCR rates were 50% with weekly and 61% with tri-weekly regimens (p = 0.186). CONCLUSIONS: Weekly carboplatin exhibited comparable toxicity, a trend toward fewer interruptions, and similar pCR rates. Prospective studies are essential for validating these findings.


Assuntos
Carboplatina , Esquema de Medicação , Terapia Neoadjuvante , Neoplasias de Mama Triplo Negativas , Humanos , Carboplatina/administração & dosagem , Carboplatina/efeitos adversos , Estudos Retrospectivos , Feminino , Neoplasias de Mama Triplo Negativas/tratamento farmacológico , Neoplasias de Mama Triplo Negativas/patologia , Pessoa de Meia-Idade , Adulto , Idoso , Antineoplásicos/uso terapêutico , Antineoplásicos/administração & dosagem , Antineoplásicos/efeitos adversos
9.
J Plast Reconstr Aesthet Surg ; 83: 258-265, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-37285777

RESUMO

BACKGROUND: Previous studies in orthopedics and general surgery have linked negative patient outcomes with preoperative opioid use. In this study, we investigated the association of preoperative opioid use on breast reconstruction outcomes and quality of life (QoL). METHODS: We reviewed our prospective registry of patients who underwent breast reconstruction for documented preoperative opioid use. Postoperative complications were recorded at 60 days after the first reconstructive surgery and 60 days after the final staged reconstruction. We used a logistic regression model to assess the association between opioid use and postoperative complications, controlling for smoking, age, laterality, BMI, comorbidities, radiation, and previous breast surgery; linear regression to analyze RAND36 scores to evaluate the impact of preoperative opioid use on postoperative QoL, controlling for the same factors; and Pearson chi-squared test to assess factors that may be associated with opioid use. RESULTS: Of the 354 patients eligible for inclusion, 29 (8.2%) were prescribed preoperative opioids. There were no differences in opioid use by race, BMI, comorbidities, previous breast surgery, or laterality. Preoperative opioids were associated with increased odds of postoperative complications within 60 days after the first reconstructive surgery (OR: 6.28; 95% CI: 1.69-23.4; p = 0.006) and within 60 days after the final staged reconstruction (OR: 8.38; 95% CI: 1.17-59.4; p = 0.03). Among patients using opioids preoperatively, the RAND36 physical and mental scores decreased but were not statistically significant. CONCLUSION: We found that preoperative opioid use is associated with increased odds of postoperative complications among patients who underwent breast reconstruction and may contribute to clinically significant declines in postoperative QoL.


Assuntos
Neoplasias da Mama , Mamoplastia , Transtornos Relacionados ao Uso de Opioides , Humanos , Feminino , Analgésicos Opioides/efeitos adversos , Qualidade de Vida , Dor Pós-Operatória/tratamento farmacológico , Dor Pós-Operatória/etiologia , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/induzido quimicamente , Mamoplastia/efeitos adversos , Neoplasias da Mama/cirurgia , Neoplasias da Mama/complicações , Estudos Retrospectivos
10.
Eur J Sport Sci ; 22(9): 1335-1342, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-34256680

RESUMO

Endurance exercise induces notable acute hormonal responses on the gonadal and adrenal hormones. The purpose of this study was to assess the changes in salivary testosterone (Ts), salivary cortisol (Cs) and T/C ratio during long-distance triathlon. Ten well-trained male triathletes participated in the study and were assessed for hormonal changes at four time-points (pre-competition, post-swimming, post-cycling, and post-running phases). Ts decreased from pre-competition to post-swimming (from 93.37 pg/mL to 57.63 pg/mL; p < .01) and increased during two other parts of the competition to almost pre-competition values (cycling: 79.20 pg/mL, p = .02; running: 89,66 pg/mL, p = .04, respectively). Cs showed a similar behaviour; decreasing in the post-swimming phase (1.74 pg/mL) and increasing in the other transitions (post-cycling: 7.30 pg/mL; post-running: 13.31 pg/mL), with significant differences between pre-competition and post- competition values (p = .01). Conversely, T/C increased significantly from pre-competition to post-swimming phase (p = .04) to later decrease until the end of the competition. Overall, T/C significantly decreased (p < .05). In conclusion, during an Ironman triathlon, hormone values fluctuate in response to the demands of the competition. Ts and Cs decrease after-swimming, increase after-cycling and reach the maximum values after-running. T/C reflects overall catabolic status.


Assuntos
Hidrocortisona , Corrida , Ciclismo/fisiologia , Humanos , Masculino , Resistência Física/fisiologia , Corrida/fisiologia , Natação/fisiologia , Testosterona
11.
J Sports Sci ; 29(6): 619-25, 2011 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-21391085

RESUMO

In this study, we used tensiomyography (TMG) to assess muscle status immediately after an ultra-endurance triathlon. Maximal radial displacement or deformation of the muscle belly, contraction time, delay time, sustain time, and relaxation time were measured for both legs, and dependent t-tests were used to compare means between the beginning and end of the race. The 19 men assessed (age 37.9 ± 7.1 years; height 177.5 ± 4.6 cm; weight: 73.6 ± 6.5 kg) participated in the 2009 edition of the Lanzarote Ironman. Deterioration in the neural response was observed for contraction time (P = 0.008) and relaxation time (P = 0.011), with a moderate decrease in the response time (sustain time) and a loss in muscle stiffness (deformation of the muscle belly). The effect of muscle fatigue on the rectus femoris and biceps femoris was different. Barely any changes in contraction time, relaxation time, sustain time, and deformation of the muscle belly were observed, while only the contraction response time decreased to a significant extent (reduction in delay time; P = 0.003). The considerable loss in contractile capacity induced by a long-distance race was reflected in changes in the neuromuscular response and fluctuations in the contractile capacity of the muscle. These modifications, derived from a prolonged, exhausting effort, can be assessed in a simple, non-aggressive, non-invasive way using tensiomyography.


Assuntos
Fadiga Muscular/fisiologia , Músculo Esquelético/fisiologia , Resistência Física/fisiologia , Esportes/fisiologia , Adulto , Braço/fisiologia , Ciclismo/fisiologia , Humanos , Perna (Membro)/fisiologia , Masculino , Contração Muscular/fisiologia , Miografia/métodos , Músculo Quadríceps/fisiologia , Corrida/fisiologia , Natação/fisiologia
12.
J Strength Cond Res ; 24(9): 2316-21, 2010 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-20703161

RESUMO

The aim of this study was to determine whether the in-game role of players (setter, outside, middle, or opposite player) in elite women's volleyball is significantly related to the characteristics of their service. The sample consisted of 1,300 service deliveries (total serves for all matches) made by players in the 8 teams participating in 2 Final 4 stages of the Indesit European Champions League. The variables recorded were in-game role of the server, service type, speed of delivery, service area, target zone, and effectiveness of delivery. Results showed a significant relation between the server's in-game role and service type (p

Assuntos
Voleibol/fisiologia , Desempenho Atlético/fisiologia , Desempenho Atlético/estatística & dados numéricos , Feminino , Humanos , Fatores de Tempo , Voleibol/estatística & dados numéricos
13.
Mil Med ; 175(1): 61-4, 2010 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-20108844

RESUMO

This study sought to determine the effects of hyperbaric pressure on heart rate modulation, by analyzing potential changes in heart rate variability (HRV). Ten divers were exposed to pressures of 1, 2, 3, and 4 atmospheres absolute (ATA). The test was performed in a hyperbaric chamber. Heart rate (HR) was recorded in supine subjects for 10 minutes per atmosphere. HRV was analyzed in the frequency mode (fast-Fourier transform and continuous wavelet transform). Results confirmed bradycardia as pressure increased. The drop in HR attained statistical significance after 2, 3, and 4 ATA. Signal energy (normalized TP values) rose progressively, becoming significant at 2 ATA. High frequency and low frequency displayed similar behavior in both cases. Although frequency band peaks did not yield clear results, continuous wave transform analysis showed that the frequency spectrum tended to shift into the high-frequency range as pressure increased. In summary, increased pressure prompted increased bradycardia, and HRV shifted into high-frequency range.


Assuntos
Mergulho/fisiologia , Sistema de Condução Cardíaco/fisiologia , Frequência Cardíaca/fisiologia , Oxigenoterapia Hiperbárica , Adulto , Análise de Variância , Pressão Atmosférica , Feminino , Humanos , Masculino , Processamento de Sinais Assistido por Computador
14.
Plast Reconstr Surg Glob Open ; 8(4): e2709, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32440400

RESUMO

BACKGROUND: Electronic health records (EHRs) should help physicians stay organized, improve patient safety, and facilitate communication with both patients and fellow healthcare providers. However, few studies have directly evaluated physician satisfaction with EHR and its perceived impact on patient care. This study assessed trends and perceptions of EHR within the American plastic surgery community. METHODS: An Institutional Review Board-approved survey that assessed demographics, patterns of EHR use, and attitudes toward EHR was deployed by the American Society of Plastic Surgeons Member Survey Research Services. Statistical analyses were performed using Stata 14.2 and QDA Miner Lite software (Version 2.0; Provalis, Montreal, Canada). Significance level was P < 0.05. RESULTS: Among plastic surgeons who use EHR, EPIC Systems software (Epic, Verona, Wisc.) was the most common vendor, with users noting a net positive effect on the quality of care they provided to patients. Younger age and less years of experience were correlated with a more positive attitude toward EHR. Positive attitude was closely linked to shared responsibility among support staff over data entry, whereas negative attitude was tightly tied to the perceived time wasted because of EHR, followed by poor technical support and design. CONCLUSIONS: EHR use among plastic surgeons was more common in academic-associated specialties and larger practice groups. Overall, age and practice type had weak associations with perceptions of EHR usage. On average, there were slightly more positive perceptions of EHR usage than negative. The most commonly perceived issues with EHR were wasted time and barriers to user-friendliness. These findings suggest the need for greater physician involvement in EHR optimization.

15.
Clin Pharmacokinet ; 59(2): 245-256, 2020 02.
Artigo em Inglês | MEDLINE | ID: mdl-31435896

RESUMO

BACKGROUND AND OBJECTIVE: Rurioctacog alfa pegol (Adynovate) is a modified recombinant factor VIII concentrate used for treating hemophilia A. Aiming to improve treatment tailoring on the Web-Accessible Population Pharmacokinetic Service-Hemophilia (WAPPS-Hemo) platform for patients of all ages treated with Adynovate, we have developed and evaluated a population pharmacokinetic (PopPK) model. On the platform, PopPK models are used as priors for Bayesian forecasting that derive individual PK of hemophilia patients and are subsequently used for personalized dose regimen design. METHODS: Factor activity measurements and demographic covariate data from patients infused with Adynovate were extracted from the WAPPS-Hemo database. Evaluations testing the appropriateness of Bayesian forecasting included 10-fold cross validation, a limited sampling analysis (LSA), and an external evaluation using additional independent data extracted from the WAPPS-Hemo database at a later date. RESULTS: The model was constructed using 650 plasma factor activity observations (555 one stage assay and 95 chromogenic assay - 4.6% below limit of quantification) measured in 154 patients from 36 hemophilia centres. A two-compartment model including between subject variability on clearance and central volume was selected as the base model. Covariates were fat free mass on clearance and central volume, age on clearance and assay type on activity. The final model was well-suited to predict PK parameters of new individuals (n = 26) from sparse observations. CONCLUSIONS: The development of a PopPK model for Adynovate using real-world data increases the covariate space (e.g. age) beyond what is possible from clinical trial data. This model is available on the WAPPS-Hemo platform for tailoring treatment in hemophilia A patients.


Assuntos
Fator VIII/farmacocinética , Hemofilia A/tratamento farmacológico , Intervenção Baseada em Internet/estatística & dados numéricos , Adolescente , Adulto , Teorema de Bayes , Índice de Massa Corporal , Criança , Bases de Dados Factuais , Fator VIII/administração & dosagem , Fator VIII/uso terapêutico , Hemofilia A/metabolismo , Humanos , Infusões Intravenosas , Modelos Teóricos , Proteínas Recombinantes/administração & dosagem , Proteínas Recombinantes/farmacocinética , Proteínas Recombinantes/uso terapêutico , Adulto Jovem
16.
BMJ Open ; 9(3): e024816, 2019 03 15.
Artigo em Inglês | MEDLINE | ID: mdl-30878982

RESUMO

OBJECTIVE: To determine whether tibial neurolysis performed as a surgical intervention for patients with diabetic neuropathy and superimposed tibial nerve compression in the prevention of the diabetic foot is cost-effective when compared with the current prevention programme. DESIGN: A baseline analysis was built on a 5-year model to determine the cumulative incidence of foot ulcers and amputations with each strategy. Subsequently, a cost-effectiveness analysis and cohort-level Markov simulations were conducted with a model composed of 20 6-month cycles. A sensitivity analysis was also performed. SETTING: A Markov model was used to simulate the effects of standard prevention compared with tibial neurolysis on the long-term costs associated with foot ulcers and amputations. This model included eight health states. PARTICIPANTS: Each cohort includes simulated patients with diabetic neuropathy at different levels of risk of developing foot ulcers and amputations. PRIMARY AND SECONDARY OUTCOME MEASURES: The primary outcome was the long-term trends concerning the development of ulcers and amputations with each strategy. The secondary outcome measures were quality adjusted life years (QALYs), incremental cost-effectiveness and net monetary benefits of the optimal strategy. RESULTS: When compared with standard prevention, for a patient population of 10 000, surgery prevented a simulated total of 1447 ulcers and 409 amputations over a period of 5 years. In a subsequent analysis that consisted of 20 6-month cycles (10 years), the incremental cost of tibial neurolysis compared with current prevention was $12 772.28; the incremental effectiveness was 0.41 QALYs and the incremental cost-effectiveness ratio was $31 330.78. Survival was 73% for those receiving medical prevention compared with 95% for those undergoing surgery. CONCLUSION: These results suggest that among patients with diabetic neuropathy and superimposed nerve compression, surgery is more effective at preventing serious comorbidities and is associated with a higher survival over time. It also generated greater long-term economic benefits.


Assuntos
Amputação Cirúrgica , Descompressão Cirúrgica , Pé Diabético , Neuropatias Diabéticas/cirurgia , Nervo Tibial/cirurgia , Idoso , Amputação Cirúrgica/métodos , Amputação Cirúrgica/estatística & dados numéricos , Custos e Análise de Custo/estatística & dados numéricos , Descompressão Cirúrgica/economia , Descompressão Cirúrgica/métodos , Pé Diabético/etiologia , Pé Diabético/prevenção & controle , Pé Diabético/cirurgia , Neuropatias Diabéticas/complicações , Feminino , Humanos , Masculino , Cadeias de Markov , Utilização de Procedimentos e Técnicas/estatística & dados numéricos , Suécia , Tempo
17.
Plast Reconstr Surg ; 143(2): 276e-284e, 2019 02.
Artigo em Inglês | MEDLINE | ID: mdl-30489499

RESUMO

BACKGROUND: The most common type of breast reconstruction is implant-based breast reconstruction. Implant-based reconstruction has been reported to impact quality-of-life outcomes. Therefore, the authors sought to evaluate the cost-effectiveness of saline versus silicone implants. METHODS: The authors retrospectively reviewed data from patients who underwent breast reconstruction with saline or silicone implants at their institution. This included type of procedure, acellular dermal matrix use, complications, and number of revisions. Costs were estimated using the Centers for Medicare and Medicaid Services physician fee schedule and hospital costs. Effectiveness was measured using BREAST-Q-adjusted life-years, a measure of years of perfect breast health, based on BREAST-Q data collected before mastectomy and reconstruction and at 12 months after final reconstruction. The incremental cost-effectiveness ratio was obtained for silicone and saline reconstruction. RESULTS: The authors identified 134 women, among which 77 (57 percent) underwent silicone and 57 (43 percent) underwent saline breast reconstruction. The cost of saline reconstruction was $1288.23 less compared with silicone. BREAST-Q-adjusted life-years were 28.11 for saline and 23.57 for silicone, demonstrating higher cost-effectiveness for saline. The incremental cost-effectiveness ratio for saline was -$283.48, or $283.48 less per year of perfect breast-related health postreconstruction than silicone. CONCLUSIONS: The authors' results indicate that saline breast reconstruction may be more cost-effective compared with silicone at 12 months after final reconstruction. Silicone was both more expensive and less effective than saline. However, given the relatively small cost difference, surgeon and patient preference may be important in determining type of implant used.


Assuntos
Implante Mamário/economia , Implante Mamário/métodos , Implantes de Mama/economia , Análise Custo-Benefício , Solução Salina/química , Géis de Silicone/química , Adulto , Neoplasias da Mama/patologia , Neoplasias da Mama/cirurgia , Estudos de Coortes , Feminino , Humanos , Mastectomia/métodos , Pessoa de Meia-Idade , Desenho de Prótese , Falha de Prótese , Sistema de Registros , Reoperação/economia , Estudos Retrospectivos , Medição de Risco , Solução Salina/efeitos adversos , Géis de Silicone/efeitos adversos , Estados Unidos
18.
Plast Reconstr Surg Glob Open ; 7(1): e1855, 2019 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-30859019

RESUMO

Enhanced recovery after surgery pathways are well established in other surgical specialties but are relatively new in plastic surgery. These guidelines focus on improving patient care by incorporating evidence-based recommendations. Length of stay is shorter, and overall hospital costs are lower without compromising patient satisfaction. When care is standardized, ambiguity is removed and physician acceptance is improved. Yet, implementation can be challenging on an institutional level. The Johns Hopkins microsurgical breast reconstruction team identified areas of dogmatic dissonance during 3 focus groups to formalize an enhanced recovery pathway for microsurgical breast reconstruction. Six microsurgeons used nominal group technique to reach consensus. Four discussion points were identified: multidisciplinary buy-in, venous thromboembolism (VTE) chemophylaxis, early feeding, and dietary restrictions. Evidence-based recommendations and our enhanced recovery after surgery protocol are provided.

19.
J Surg Educ ; 75(6): 1498-1503, 2018 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-29685786

RESUMO

OBJECTIVE: Operative performance feedback is essential for surgical training. We aimed to understand surgical trainees' views on their operative performance feedback needs and to characterize feedback to elucidate factors affecting its value from the resident perspective. DESIGN: Using a qualitative research approach, 2 research fellows conducted semistructured, one-on-one interviews with surgical trainees. We analyzed recurring themes generated during interviews related to feedback characteristics, as well as the extent to which performance rating tools can help meet trainees' operative feedback needs. SETTING: Departments or divisions of general or plastic surgery at 9 US academic institutions. PARTICIPANTS: Surgical residents and clinical fellows in general or plastic surgery. RESULTS: We conducted 30 interviews with 9 junior residents, 14 senior residents, and 7 clinical fellows. Eighteen (60%) participants were in plastic and 12 (40%) were in general surgery. Twenty-four participants (80%) reported feedback as very or extremely important during surgical training. All trainees stated that verbal, face-to-face feedback is the most valuable, especially if occurring during (92%) or immediately after (65%) cases. Of those trainees using performance rating tools (74%), most (57%) expressed positive views about them but wanted the tools to complement and not replace verbal feedback in surgical education. Trainees value feedback more if received within 1 week or the case. CONCLUSIONS: Verbal, face-to-face feedback is very or extremely important to surgical trainees. Residents and fellows prefer to receive feedback during or immediately after a case and continue to value feedback if received within 1 week of the event. Performance rating tools can be useful for providing formative feedback and documentation but should not replace verbal, face-to-face feedback. Considering trainee views on feedback may help reduce perceived gaps in feedback demand-versus-supply in surgical training, which may be essential to overcoming current challenges in surgical education.


Assuntos
Competência Clínica , Bolsas de Estudo , Feedback Formativo , Cirurgia Geral/educação , Internato e Residência , Cirurgia Plástica/educação , Feminino , Humanos , Masculino , Avaliação das Necessidades , Pesquisa Qualitativa
20.
CorSalud ; 13(1): 44-50, 2021. tab, graf
Artigo em Espanhol | LILACS | ID: biblio-1345919

RESUMO

RESUMEN Introducción: La evaluación de la función miocárdica es fundamental para la toma de decisiones durante el seguimiento de pacientes con enfermedades oncológicas que reciben quimioterapia. Con las técnicas de speckle-tracking bidimensional se puede determinar el grado de deformación de la fibra miocárdica y obtener una medida más directa de la función sistólica que la que aporta la fracción de eyección del ventrículo izquierdo (FEVI). Objetivo: Evaluar la función miocárdica, mediante ecocardiografía, en pacientes con enfermedades oncológicas y tratamiento quimioterápico. Método: Se realizó un estudio descriptivo longitudinal prospectivo en 21 pacientes con diagnóstico de enfermedad oncoproliferativa e indicación de quimioterapia con trastuzumab, en el Hospital de Fuerteventura (España), entre enero de 2017 y mayo de 2020. A todos se les realizó ecocardiograma transtorácico con técnica de speckle-tracking (strain longitudinal global) antes del tratamiento y durante el seguimiento. Resultados: Predominaron las mujeres (95,2%) con diagnóstico de cáncer de mama (90,5%) y la edad promedio fue de 53,8 años (rango 38-75). La FEVI y el strain longitudinal global fueron normales (100%) antes del inicio de la quimioterapia. Fue necesario suspender el tratamiento en 3 pacientes (14,3%); pero solo en 2 de ellos (9,5%) por cardiotoxicidad detectada por ecocardiografía. Cinco pacientes (23,8%) presentaron síntomas de insuficiencia cardíaca, 1 (4,8%) tenía cardiotoxicidad y en los otros 4 (19,0%) se demostró ausencia de disfunción miocárdica, por lo que se pudo continuar el tratamiento con seguridad. Conclusiones: El ecocardiograma con técnica de speckle-tracking bidimensional fue de vital importancia para evaluar la función miocárdica y guiar el tratamiento quimioterápico en pacientes con enfermedades oncológicas.


ABSTRACT Introduction: Assessment of myocardial function is critical for decision making during the follow-up of patients with oncologic diseases undergoing chemotherapy. Two-dimensional speckle-tracking techniques help to determine the degree of myocardial fiber deformation and provide a more direct measure of systolic function than left ventricular ejection fraction (LVEF). Objective: To evaluate myocardial function by means of echocardiography in patients with oncological diseases undergoing chemotherapy. Methods: A prospective longitudinal descriptive study was performed in 21 patients diagnosed with cancer and with indication for chemotherapy with trastuzumab, in the Hospital of Fuerteventura (Spain), between January 2017 and May 2020. All underwent transthoracic echocardiography with speckle-tracking technique (global longitudinal strain) before treatment and during follow-up. Results: Women (95.2%) with a diagnosis of breast cancer (90.5%) predominated and the mean age was 53.8 years (range 38-75). Left ventricular ejection fraction and global longitudinal strain were normal (100%) before starting chemotherapy. It was necessary to suspend treatment in 3 patients (14.3%); but only in 2 of them (9.5%) due to cardiotoxicity detected by echocardiography. Five patients (23.8%) presented symptoms of heart failure, 1 (4.8%) had cardiotoxicity and in the other 4 (19.0%) the absence of myocardial dysfunction was demonstrated, so that treatment could be continued safely. Conclusions: Two-dimensional speckle-tracking echocardiography was of vital importance for assessing myocardial performance and guiding chemotherapy in patients with oncologic diseases.


Assuntos
Ecocardiografia , Tratamento Farmacológico , Cardiotoxicidade , Insuficiência Cardíaca
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA