RESUMO
Schizophrenia is a serious cognitive disorder characterized by disruptions in neurotransmission, a process requiring the coordination of multiple kinase-mediated signaling events. Evidence suggests that the observed deficits in schizophrenia may be due to imbalances in kinase activity that propagate through an intracellular signaling network. Specifically, 3'-5'-cyclic adenosine monophosphate (cAMP)-associated signaling pathways are coupled to the activation of neurotransmitter receptors and modulate cellular functions through the activation of protein kinase A (PKA), an enzyme whose function is altered in the frontal cortex in schizophrenia. In this study, we measured the activity of PKA in human postmortem anterior cingulate cortex (ACC) and dorsolateral prefrontal cortex (DLPFC) tissue from schizophrenia and age- and sex-matched control subjects. No significant differences in PKA activity were observed in male and female individuals in either brain region; however, correlation analyses indicated that PKA activity in the ACC may be influenced by tissue pH in all subjects and by age and tissue pH in females. Our data provide novel insights into the function of PKA in the ACC and DLPFC in schizophrenia.
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Hydroxyapatite deposition disease (HADD) is a common localized disorder characterized by deposition of hydroxyapatite in soft tissues. These hydroxyapatite deposits can be found in the periarticular soft tissues such as bursae, joint capsules, tendon sheaths, and ligaments as well as within the tendons themselves, and intra-articular involvement has also been described [1,2]. We present a case of a 50-year-old female with acute symptoms of carpal tunnel syndrome secondary to partially liquified, mass-like, inflammatory calcific peri-arthritis. The case is supplemented with the use of multimodality imaging, a surgical perspective, and histopathologic correlation.
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Artrite , Síndrome do Túnel Carpal , Artrite/complicações , Síndrome do Túnel Carpal/diagnóstico por imagem , Síndrome do Túnel Carpal/cirurgia , Feminino , Humanos , Hidroxiapatitas , Pessoa de Meia-Idade , Punho , Articulação do Punho/diagnóstico por imagem , Articulação do Punho/cirurgiaRESUMO
BACKGROUND: Appropriate, progressive trainee autonomy is critical for training competent plastic surgeons who are adequately prepared to enter independent practice. Evaluation and reporting of meaningful operative autonomy among trainees in plastic surgery are understudied. METHODS: Parallel survey instruments were developed using the Zwisch metric for progressive operative autonomy and distributed electronically to trainees and faculties in all accredited training programs. Trainees were queried about their operative autonomy in 17 core plastic surgery procedures, associated approach to logging cases, and perceived readiness to enter practice. Faculties provided assessment of their final-year trainees using the same metrics. RESULTS: Trainees in 28 programs and faculties in 35 programs participated. Final-year trainees reported the most operative independence with breast tissue expander reconstruction and carpal tunnel release and the least with facelift and rhinoplasty. A mean of 40% of final-year trainees reached supervision only autonomy in the procedures queried; none achieved this with rhinoplasty. Faculties identified the highest final-year trainee operative autonomy with botulinum toxin injection and burn excision and grafting; the least trainee independence was reported with rhinoplasty, cleft lip repair, and facelift. Faculty perception of final-year trainee autonomy was higher than that of trainees for 82% of procedures queried. CONCLUSIONS: Although plastic surgery trainees endorse gradual operative autonomy overall, a majority of final-year trainees do not perceive supervision only independence in the majority of core procedures queried. Faculties perceive higher trainee operative autonomy than trainees for most procedures. Discordant approaches to case logging were identified both among trainees and between trainees and faculties. Standardization may improve both progression and assessment of operative autonomy in plastic surgery training.
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Cirurgia Geral , Internato e Residência , Cirurgiões , Cirurgia Plástica , Competência Clínica , Cirurgia Geral/educação , Humanos , Autonomia Profissional , Inquéritos e QuestionáriosRESUMO
Background: Several anatomical variations of the median nerve recurrent motor branch have been described. No previous reports have described the anatomical variation of the ulnar nerve with respect to transverse carpal ligament. In this article, we present a patient with symptomatic compression of the ulnar nerve found to occur outside the Guyon canal due to a transligamentous course through the distal transverse carpal ligament. Methods: A 59-year-old, right-hand-dominant male patient presented with right hand pain, subjective weakness, and numbness in both the ulnar and the median nerve distributions. Electromyography revealed moderate demyelinating sensorimotor median neuropathy at the wrist and distal ulnar sensory neuropathy. At the time of planned carpal tunnel and Guyon canal release, a transligamentous ulnar nerve sensory common branch to the fourth webspace was encountered and safely released. Results: There were no surgical complications. The patient's symptoms of numbness in the median and ulnar nerve distribution clinically improved at his first postoperative visit. Conclusions: We have identified a case of transligamentous ulnar nerve sensory branch encountered during carpal tunnel release. To our knowledge, this has not been previously reported. While the incidence of this variant is unknown, hand surgeons should be aware of this anatomical variant as its location puts it at risk of iatrogenic injury during open and endoscopic carpal tunnel release.
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Ligamentos Articulares/inervação , Nervo Mediano/anormalidades , Doenças do Sistema Nervoso Periférico/diagnóstico , Síndromes de Compressão do Nervo Ulnar/diagnóstico , Nervo Ulnar/anormalidades , Punho/inervação , Diagnóstico Diferencial , Eletromiografia , Humanos , Masculino , Pessoa de Meia-Idade , Doenças do Sistema Nervoso Periférico/congênito , Síndromes de Compressão do Nervo Ulnar/congênitoRESUMO
BACKGROUND: Professional affiliation between medical centers and professional sports teams can be mutually beneficial in the provision of healthcare and marketing strategy. Anecdotal evidence suggests a link between trauma volume and sporting events; however, there is limited data. This study aims to characterize the incidence of operative hand and facial trauma during professional baseball home games. METHODS: A retrospective review of surgical cases for traumatic hand or facial injuries at a level 1 center between 1999 and 2012 was performed. Demographic information including date of injury, admission status, and operative repair were collected. Patients were grouped based on whether their trauma occurred on the date of a home game. RESULTS: Operative hand and facial trauma occurred at a rate of 33.4 injuries per 100 days with home games, compared to 22.2 injuries per 100 days (incidence rate ratios, 1.50; 95% confidence interval, 1.34-1.69). When home games were played, patients were more likely to present as a result of motorcycle accidents (3.1% vs. 1.5%; P=0.04) or bicycle accidents (5.0% vs. 2.6%; P=0.01). Other mechanisms of trauma were not statistically different. There was an increase incidence of injuries during home games in August; weekly variability showed an increased incidence during the weekends. CONCLUSIONS: There was an increased rate of operative hand and facial injuries on dates with professional home games. The incidence of injuries during home games was higher in the late summer and on the weekends. Further analysis may allow improved resource allocation and strategies for injury prevention and treatment.
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BACKGROUND: The transgender population is disproportionally affected by health disparities related to access to care. In many communities, transgender specialists are geographically distant and locally available medical professionals may be unfamiliar with unique needs of transgender patients. As a result, use of Internet resources for information about gender affirming surgery is particularly important. This study simulates a patient search for online educational material about gender affirming surgery and evaluates the accessibility, readability, and quality of the information. METHODS: An Internet search for the term "transgender surgery" was performed, and the first 10 relevant hits were identified. Readability was assessed using 10 established tests: Coleman-Liau, Flesch-Kincaid, FORCAST, Fry, Gunning Fog, New Dale-Chall, New Fog Count, Raygor Estimate, Simple Measure of Gobbledygook, and Flesch Reading Ease. Quality was assessed using Journal of the American Medical Association criteria and the DISCERN instrument. RESULTS: Review of 69 results was required to identify 10 sites with relevant patient information. There were 97 articles collected; overall mean reading level was 14.7. Individual Web site reading levels ranged from 12.0 to 17.5. All articles and Web sites exceeded the recommended sixth grade level. Quality ranged from 0 to 4 (Journal of the American Medical Association) and 35 to 79 (DISCERN) across Web sites. CONCLUSIONS: Web sites with relevant patient information about gender affirming surgery were difficult to identify from search results. The content of these sites universally exceeded the recommended reading level. A wide range of Web site quality was noted, and this may further complicate successful navigation. Barriers in access to appropriately written patient information on the Internet may contribute to disparities in referral, involvement, satisfaction, and outcomes.
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Internet/estatística & dados numéricos , Cirurgia de Readequação Sexual , Acesso à Informação , Compreensão , Feminino , Humanos , MasculinoRESUMO
BACKGROUND: Postoperative free flap care has historically required intensive monitoring for 24 hours in an intensive care unit. Continuous monitoring with tissue oximetry has allowed earlier detection of vascular compromise, decreasing flap loss and improving salvage. This study aims to identify whether a fast-track postoperative paradigm can be safely used with tissue oximetry to decrease intensive monitoring and costs. MATERIALS AND METHODS: All consecutive microsurgical breast reconstructions performed at a single institution were reviewed (2008-2014) and cases requiring return to the operating room were identified. Data evaluated included patient demographics, the take back time course, and complications of flap loss and salvage. A cost-benefit analysis was performed to analyse the utility of a postoperative intensive monitoring setting. RESULTS: There were 900 flaps performed and 32 required an unplanned return to the operating room. There were 16 flaps that required a reexploration within the first 24 hours; the standard length of intensive unit monitoring. After 4 hours, there were 7 flaps (44%) detected by tissue oximetry for reexploration. After 15 hours of intensive monitoring postoperatively, cost analysis revealed that the majority (15/16; 94%) of failing flaps had been identified and the cost of identifying each subsequent failing flap exceeded the cost of another hour of intensive monitoring. CONCLUSIONS: The postoperative paradigm for microsurgical flaps has historically required intensive unit monitoring. Using tissue oximetry, a fast-track pathway can reduce time spent in an intensive monitoring setting from 24 to 15 hours with significant cost savings and minimal risk of missing a failing free flap.
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Neoplasias da Mama/cirurgia , Retalhos de Tecido Biológico/transplante , Mamoplastia/métodos , Oximetria/estatística & dados numéricos , Adulto , Estudos de Coortes , Bases de Dados Factuais , Feminino , Seguimentos , Retalhos de Tecido Biológico/irrigação sanguínea , Rejeição de Enxerto/prevenção & controle , Humanos , Unidades de Terapia Intensiva , Tempo de Internação , Mamoplastia/efeitos adversos , Mastectomia/métodos , Microcirurgia/métodos , Pessoa de Meia-Idade , Monitorização Fisiológica/métodos , Cuidados Pós-Operatórios/métodos , Reoperação/estatística & dados numéricos , Estudos Retrospectivos , Resultado do TratamentoRESUMO
BACKGROUND: The ability to predict the future viability of tissue while still in the operating room and able to intervene would have a major impact on patient outcome. Although several objective methods to evaluate tissue perfusion have been reported, none to date has sufficient accuracy. METHODS: In eight Sprague-Dawley rats, reverse McFarlane dorsal skin flaps were created. Continuous near-infrared fluorescence angiography using indocyanine green was performed immediately after surgery, for a total of 30 minutes. These dynamic measurements were used to quantify indocyanine green biodistribution and clearance, and to develop a simple metric that accurately predicted tissue viability at postoperative day 7. The new metric was compared to previously described metrics. RESULTS: Reproducible patterns of indocyanine green biodistribution and clearance from the flap permitted quantitative metrics to be developed for predicting flap viability at postoperative day 7. Previously described metrics, which set the boundary between healthy and necrotic tissue as either 17 or 25 percent of peak near-infrared fluorescence at 2 minutes after indocyanine green injection, underestimated the area of necrosis by 75 and 48 percent, respectively. Our data suggest that both the shape and area of clinical necrosis occurring at postoperative day 7 can be predicted intraoperatively, with the boundary defined as near-infrared fluorescence intensities of 40 to 55 percent of peak fluorescence measured at 5 minutes. CONCLUSION: Two 750-msec intraoperative near-infrared fluorescence images obtained at time 0 and at 5 minutes after injection of indocyanine green accurately predicted skin flap viability 7 days after surgery.
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Cuidados Intraoperatórios , Imagem Óptica , Sobrevivência de Tecidos , Angiografia , Animais , Corantes/farmacocinética , Verde de Indocianina/farmacocinética , Masculino , Período Pós-Operatório , Valor Preditivo dos Testes , Ratos , Ratos Sprague-Dawley , Reprodutibilidade dos Testes , Retalhos Cirúrgicos/irrigação sanguínea , Fatores de Tempo , Distribuição TecidualRESUMO
Imaging technologies working in the spatial frequency domain are becoming increasingly popular for generating wide-field maps of optical properties, enabling rapid analysis of tissue parameters. While acquisition methods have become faster and are now performing in real-time, processing methods remain slow, precluding real-time display of information. We present solutions that rapidly solve the inverse problem for extracting optical properties by use of advanced lookup tables (LUTs). We present methods and results based on a dense, linearly sampled lookup table and an analytical representation that generate maps of absorption and reduced scattering in ?10??ms, which is 100× faster than the standard method, with ?4% error compared to the Monte-Carlo simulation. Combined with real-time acquisition methods, the proposed techniques enable video-rate feedback of real-time property maps, enabling full video-rate guidance in the clinic.
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Processamento de Imagem Assistida por Computador/métodos , Imagem Óptica/métodos , Animais , Simulação por Computador , Método de Monte Carlo , Imagens de Fantasmas , Pele/irrigação sanguínea , SuínosRESUMO
BACKGROUND: Patients seeking health information commonly use the Internet as the first source for material. Studies show that well-informed patients have increased involvement, satisfaction, and healthcare outcomes. As one-third of Americans have only basic or below basic health literacy, the National Institutes of Health and American Medical Association recommend patient-directed health resources be written at a sixth-grade reading level. This study evaluates the readability of commonly accessed online resources on lung cancer. METHODS: A search for "lung cancer" was performed using Google and Bing, and the top 10 websites were identified. Location services were disabled, and sponsored sites were excluded. Relevant articles (n = 109) with patient-directed content available directly from the main sites were downloaded. Readability was assessed using 10 established methods and analyzed with articles grouped by parent website. RESULTS: The average reading grade level across all sites was 11.2, with a range from 8.8 (New Fog Count) to 12.2 (Simple Measure of Gobbledygook). The average Flesch Reading Ease score was 52, corresponding with fairly difficult to read text. The readability varied when compared by individual website, ranging in grade level from 9.2 to 15.2. Only 10 articles (9%) were written below a sixth-grade level and these tended to discuss simpler topics. CONCLUSIONS: Patient-directed online information about lung cancer exceeds the recommended sixth-grade reading level. Readability varies between individual websites, allowing physicians to direct patients according to level of health literacy. Modifications to existing materials can significantly improve readability while maintaining content for patients with low health literacy.
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Compreensão , Informação de Saúde ao Consumidor , Internet , Neoplasias Pulmonares , Letramento em Saúde , HumanosRESUMO
BACKGROUND: Mohs micrographic surgery has become increasingly used in the treatment of cutaneous malignancies over the past decade. Concurrently, more patients are using the Internet as a resource for medical information than ever before. The average American adult reads at an eighth grade level. The American Medical Association and National Institutes of Health have recommended a sixth grade target reading level for patient health materials. OBJECTIVE: This study evaluates the readability of currently available online information about Mohs micrographic surgery in the context of these recommendations. METHODS: An Internet search for the term "Mohs surgery" was performed and the first 10 results were identified. Patient information from each primary site was downloaded and formatted into plain text. Readability was assessed using 9 established tests; text was analyzed both overall and by Web site for comparison. RESULTS: A total of 101 articles were collected from the first 10 Web site search results; the overall average reading level was 14.4. All articles exceeded the recommended sixth grade reading level. CONCLUSION: Online resources about Mohs micrographic surgery are too difficult for many patients to read. The paucity of appropriately written patient information available on the Internet may hinder informed decision-making, participation, and subsequent postoperative satisfaction.
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Alfabetização , Cirurgia de Mohs , Educação de Pacientes como Assunto , Adulto , Compreensão , Humanos , Internet , Leitura , Estados UnidosRESUMO
Background The time to detection of vascular compromise is a significant predictor of free flap salvage outcomes as early reexploration improves salvage rates. Continuous transcutaneous near-infrared tissue oximetry is an objective, quantitative method of detecting flap vascular compromise and has been shown to allow earlier reexploration and higher salvage rates than clinical assessment alone. We designed a novel text messaging system to improve communication using tissue oximetry monitoring. Methods A retrospective review was performed of a prospectively collected database of all microsurgical breast reconstructions from 2008 to 2015. A novel text messaging system was introduced in 2013 and programmed to send text messages alert when the tissue oximetry readings suggested potential flap compromise based on established thresholds. Patient demographics and complications, including rate of reexploration and flap loss were assessed. Results There were 900 autologous microsurgical breast free flaps during the study period: 614 were monitored with standard clinical monitoring and tissue oximetry compared with 286 flaps with the additional text messaging system. There were 27 unplanned returns to the operating room in the tissue oximetry group and 5 in the text messaging group with 1 complete flap loss in each group. Reexploration occurred sooner as a result of these text message alerts (17.5 vs. 26.6 hours postoperatively), however, it did not achieve statistical significance. Conclusions We were able to demonstrate the use of a novel text messaging system for tissue oximetry. This alert system shows promise in identifying impending flap loss with rapid notification of the surgical team.
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Mamoplastia , Microcirurgia , Monitorização Fisiológica/métodos , Oximetria , Reoperação/estatística & dados numéricos , Envio de Mensagens de Texto , Feminino , Seguimentos , Retalhos de Tecido Biológico , Humanos , Curva de Aprendizado , Mamoplastia/efeitos adversos , Microcirurgia/métodos , Pessoa de Meia-Idade , Monitorização Fisiológica/instrumentação , Oximetria/métodos , Cuidados Pós-Operatórios/métodos , Estudos Retrospectivos , Terapia de SalvaçãoRESUMO
BACKGROUND: CT-angiography (CTA) has been introduced as a means of evaluating arterial anatomy and vascular integrity prior to free autologous breast reconstruction. There is limited published data, however, regarding the incidence, indications, and impact of preoperative CTA (pCTA) on procedural and flap outcomes. METHODS: Retrospective review was performed of all autologous microsurgical breast reconstruction procedures at a single academic center between January 2004 and July 2014. Univariate analysis of patient, procedural, and flap characteristics was performed and a logistic regression model was configured to assess for factors associated with ischemia-related complications. RESULTS: There were 1,110 microsurgical flap reconstructions performed in 778 patients by 3 surgeons at our institution during the study period. Overall, 11.4% of patients underwent pCTA; frequency increased from 0 to 35.7%. Patients who underwent pCTA had significantly higher body mass index (P = 0.041), and more coronary artery disease (P = 0.022), prior abdominal surgery (P = 0.004), and bilateral reconstruction (P = 0.015). No statistically significant difference between groups was found with respect to flap characteristics or operative time. Multivariate analysis revealed that although pCTA was associated with a lower incidence of ischemia-related complications (complete or partial flap loss or fat necrosis) (OR, 0.57, 95% CI, 0.32 to 1.02), this did not reach statistical significance (P = 0.058). CONCLUSIONS: Use of pCTA has increased dramatically at our institution since it was first incorporated into the reconstructive surgical planning process in 2008. Given the expense, radiation exposure, and borderline impact on ischemia-related flap complications, surgeons should selectively consider pCTA as an adjunct to their surgical planning algorithm. © 2015 Wiley Periodicals, Inc. Microsurgery 36:623-627, 2016.
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Angiografia/métodos , Retalhos de Tecido Biológico/irrigação sanguínea , Isquemia/prevenção & controle , Mamoplastia , Complicações Pós-Operatórias/prevenção & controle , Cuidados Pré-Operatórios/métodos , Tomografia Computadorizada por Raios X , Adulto , Idoso , Feminino , Seguimentos , Retalhos de Tecido Biológico/transplante , Humanos , Isquemia/epidemiologia , Isquemia/etiologia , Modelos Logísticos , Mamoplastia/métodos , Pessoa de Meia-Idade , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/etiologia , Estudos Retrospectivos , Transplante AutólogoRESUMO
IMPORTANCE: The degree to which patients are empowered by written educational materials depends on the text's readability level and the accuracy of the information provided. The association of a website's affiliation or focus on treatment modality with its readability and accuracy has yet to be thoroughly elucidated. OBJECTIVE: To compare the readability and accuracy of patient-oriented online resources for pancreatic cancer by treatment modality and website affiliation. DESIGN: An online search of 50 websites discussing 5 pancreatic cancer treatment modalities (alternative therapy, chemotherapy, clinical trials, radiation therapy, and surgery) was conducted. The website's affiliation was identified. Readability was measured by 9 standardized tests, and accuracy was assessed by an expert panel. MAIN OUTCOMES AND MEASURES: Nine standardized tests were used to compute the median readability level of each website. The median readability scores were compared among treatment modality and affiliation categories. Accuracy was determined by an expert panel consisting of 2 medical specialists and 2 surgical specialists. The 4 raters independently evaluated all websites belonging to the 5 treatment modalities (a score of 1 indicates that <25% of the information is accurate, a score of 2 indicates that 26%-50% of the information is accurate, a score of 3 indicates that 51%-75% of the information is accurate, a score of 4 indicates that 76%-99% of the information is accurate, and a score of 5 indicates that 100% of the information is accurate). RESULTS: The 50 evaluated websites differed in readability and accuracy based on the focus of the treatment modality and the website's affiliation. Websites discussing surgery (with a median readability level of 13.7 and an interquartile range [IQR] of 11.9-15.6) were easier to read than those discussing radiotherapy (median readability level, 15.2 [IQR, 13.0-17.0]) (P = .003) and clinical trials (median readability level, 15.2 [IQR, 12.8-17.0]) (P = .002). Websites of nonprofit organizations (median readability level, 12.9 [IQR, 11.2-15.0]) were easier to read than media (median readability level, 16.0 [IQR, 13.4-17.0]) (P < .001) and academic (median readability level, 14.8 [IQR, 12.9-17.0]) (P < .001) websites. Privately owned websites (median readability level, 14.0 [IQR, 12.1-16.1]) were easier to read than media websites (P = .001). Among treatment modalities, alternative therapy websites exhibited the lowest accuracy scores (median accuracy score, 2 [IQR, 1-4]) (P < .001). Nonprofit (median accuracy score, 4 [IQR, 4-5]), government (median accuracy score, 5 [IQR, 4-5]), and academic (median accuracy score, 4 [IQR, 3.5-5]) websites were more accurate than privately owned (median accuracy score, 3.5 [IQR, 1.5-4]) and media (median accuracy score, 4 [IQR, 2-4]) websites (P < .004). Websites with higher accuracy were more difficult to read than websites with lower accuracy. CONCLUSIONS AND RELEVANCE: Online information on pancreatic cancer overestimates the reading ability of the overall population and lacks accurate information about alternative therapy. In the absence of quality control on the Internet, physicians should provide guidance to patients in the selection of online resources with readable and accurate information.
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Compreensão , Informação de Saúde ao Consumidor/normas , Internet/organização & administração , Internet/normas , Neoplasias Pancreáticas/terapia , Centros Médicos Acadêmicos , Ensaios Clínicos como Assunto , Terapias Complementares , Governo , Humanos , Disseminação de Informação , Meios de Comunicação de Massa , Organizações sem Fins Lucrativos , Propriedade , Educação de Pacientes como Assunto/normas , Estados UnidosRESUMO
BACKGROUND: Early studies have shown that near-infrared monitoring with tissue oximetry shows promise in providing earlier detection of free flap vascular compromise. However, large-scale clinical evaluation of this technology on flap outcome has not previously been established. This study examines the effect of tissue oximetry on flap reexploration rates and salvage over a 10-year period. The learning curve for this new technology is also assessed. METHODS: A retrospective review was performed of prospectively maintained data on all microsurgical breast reconstructions performed at an academic institution from 2004 to 2014. Patients were divided into two separate cohorts--standard clinical monitoring and standard clinical monitoring plus tissue oximetry--and rates of reexploration and flap salvage were compared. Subgroup analysis (tertiles) was performed to assess outcomes with increasing experience. RESULTS: A total of 380 flaps (36.2 percent) received standard clinical monitoring, and 670 flaps (63.8 percent) received additional tissue oximetry monitoring. The rate of flap salvage before implementation of tissue oximetry monitoring was 57.7 percent and increased to 96.6 percent (p < 0.001). The number of complete flap losses decreased from 11 (2.9 percent) to one (0.1 percent) with the use of tissue oximetry (p < 0.001). Subgroup analysis demonstrated significantly fewer reexplorations in the third tertile. CONCLUSIONS: Inclusion of continuous tissue oximetry in the postoperative monitoring protocol of microsurgical breast reconstruction is associated with significantly improved salvage rates and fewer flap losses. Furthermore, learning curve assessment demonstrates that use of tissue oximetry can decrease the rate of reexploration over time.
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Retalhos de Tecido Biológico/irrigação sanguínea , Sobrevivência de Enxerto , Mamoplastia/métodos , Monitorização Fisiológica/métodos , Oximetria/métodos , Cuidados Pós-Operatórios/métodos , Adulto , Idoso , Feminino , Seguimentos , Retalhos de Tecido Biológico/transplante , Humanos , Curva de Aprendizado , Microcirurgia/métodos , Pessoa de Meia-Idade , Reoperação/estatística & dados numéricos , Estudos RetrospectivosRESUMO
BACKGROUND: Patient use of online resources for health information is increasing, and access to appropriately written information has been associated with improved patient satisfaction and overall outcomes. The American Medical Association and the National Institutes of Health recommend that patient materials be written at a sixth-grade reading level. In this study, the authors simulated a patient search of online educational content for lymphedema and evaluated readability. METHODS: An online search for the term "lymphedema" was performed, and the first 12 hits were identified. User and location filters were disabled and sponsored results were excluded. Patient information from each site was downloaded and formatted into plain text. Readability was assessed using established tests: Coleman-Liau, Flesch-Kincaid, Flesch Reading Ease Index, FORCAST Readability Formula, Fry Graph, Gunning Fog Index, New Dale-Chall Formula, New Fog Count, Raygor Readability Estimate, and Simple Measure of Gobbledygook Readability Formula. RESULTS: There were 152 patient articles downloaded; the overall mean reading level was 12.6. Individual website reading levels ranged from 9.4 (cancer.org) to 16.7 (wikipedia.org). There were 36 articles dedicated to conservative treatments for lymphedema; surgical treatment was mentioned in nine articles across four sites. The average reading level for conservative management was 12.7, compared with 15.6 for surgery (p < 0.001). CONCLUSIONS: Patient information found through an Internet search for lymphedema is too difficult for many American adults to read. Websites queried had a range of readability, and surgeons should direct patients to sites appropriate for their level. There is limited information about surgical treatment available on the most popular sites; this information is significantly harder to read than sections on conservative measures.
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Compreensão , Internet , Linfedema , Educação de Pacientes como Assunto , Neoplasias da Mama/cirurgia , Feminino , Humanos , Linfedema/etiologia , Linfedema/terapia , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/terapia , LeituraRESUMO
BACKGROUND: Vascularized composite allotransplantation represents an important advancement in the field of reconstructive microsurgery and has continued to increase in popularity. The significant clinical morbidity associated with flap failure represents an important barrier to even more widespread use of these techniques. Early identification of vascular compromise has been associated with a higher salvage rate, yet most surgeons rely only on clinical assessment intraoperatively. Spatial frequency domain imaging (SFDI) presents a noncontact, objective measurement of tissue oxygenation over a large field of view. This study aims to evaluate the use of SFDI technology in hemifacial composite flap compromise as could occur during facial transplant. METHODS: Six composite hemifacial flaps were created in three 35-kg Yorkshire pigs and continuously imaged using SFDI before, during, and after 15-minute selective vascular pedicle occlusion. Arterial and venous clamping trials were performed for each flap. Changes in oxyhemoglobin concentration, deoxyhemoglobin concentration, and total hemoglobin were quantified over time. RESULTS: The SFDI successfully measured changes in oxygenation parameters in all 6 composite tissue flaps. Significant changes in oxyhemoglobin, deoxyhemoglobin, and total hemoglobin were seen relative to controls. Early and distinct patterns of alteration were noted in arterial and in venous compromise relative to one another. CONCLUSIONS: The need for noninvasive, reliable assessment of composite tissue graft viability is apparent, given the morbidity associated with flap failure. The results of this study suggest that SFDI technology shows promise in providing intraoperative guidance with regard to pedicle vessel integrity during reconstructive microsurgery.
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Oxigênio/análise , Oxiemoglobinas/análise , Retalho Perfurante/irrigação sanguínea , Pele/irrigação sanguínea , Animais , Retalho Perfurante/transplante , Projetos Piloto , Pele/patologia , Espectroscopia de Luz Próxima ao Infravermelho , SuínosRESUMO
BACKGROUND: As more patients use Internet resources for health information, there is increasing interest in evaluating the readability of available online materials. The National Institutes of Health and American Medical Association recommend that patient educational content be written at a sixth-grade reading level. This study evaluates the most popular online resources for information about mastopexy relative to average adult literacy in the United States. METHODS: The 12 most popular sites returned by the largest Internet search engine were identified using the search term "breast lift surgery." Relevant articles from the main sites were downloaded and formatted into text documents. Pictures, captions, links, and references were excluded. The readability of these 100 articles was analyzed overall and subsequently by site using 10 established readability tests. Subgroup analysis was performed for articles discussing the benefits of surgery and those focusing on risks. RESULTS: The overall average readability of online patient information was 13.3 (range, 11.1-15). There was a range of average readability scores overall across the 12 sites from 8.9 to 16.1, suggesting that some may be more appropriate than others for patient demographics with different health literacy levels. Subgroup analysis revealed that articles discussing the risks of mastopexy were significantly harder to read (mean, 14.1) than articles about benefits (11.6). CONCLUSIONS: Patient-directed articles from the most popular online resources for mastopexy information are uniformly above the recommended reading level and likely too difficult to be understood by a large number of patients in the United States.