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OBJECTIVE: Recent evidence supports the use of ampicillin-sulbactam as a favored choice for antibiotic prophylaxis following head and neck free flap reconstructive surgery. However, there is a paucity of evidence guiding the optimal duration of antibiotic prophylaxis. The aim of this study is to compare the infection rates of short courses of ampicillin-sulbactam versus extended courses of various antibiotics in head and neck free flap reconstructive surgery. METHODS: This is a retrospective cohort study conducted from 2012 to 2017 at a tertiary academic center on 266 consecutive patients undergoing head and neck surgery with free flap reconstruction. The primary outcome measure was the rate of any infection within 30â¯days of surgery. RESULTS: There were 149 patients who received antibiotic prophylaxis for an extended duration of at least seven days. 117 patients received a short course of antibiotics defined as 24â¯h for non-radiated patients and 72â¯h for radiated patients. Postoperative infections occurred in 45.9% of patients, of which 92.6% occurred at surgical sites. There was no significant difference in terms of postoperative infection rate between patients receiving an extended duration of antibiotics versus a short duration (pâ¯=â¯0.80). This held true for subgroups of surgical site infections (pâ¯=â¯0.38) and distant infections (pâ¯=â¯0.59 for pneumonia and pâ¯=â¯0.76 for UTI). Risk factors for infections were identified as hypothyroidism (pâ¯=â¯0.047) and clean contaminated wound classification (pâ¯=â¯0.0002). CONCLUSION: Shorter duration of ampicillin-sulbactam prophylaxis in free flap reconstruction of head and neck defects does not negatively affect postoperative infection rates. LEVEL OF EVIDENCE: Level 2b.
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Antibacterianos/administración & dosificación , Profilaxis Antibiótica , Colgajos Tisulares Libres , Neoplasias de Cabeza y Cuello/cirugía , Procedimientos de Cirugía Plástica , Ampicilina/administración & dosificación , Protocolos Clínicos , Esquema de Medicación , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Sulbactam/administración & dosificación , Infección de la Herida Quirúrgica/prevención & controlRESUMEN
BACKGROUND: Follicular thyroid carcinoma (FTC) metastasis to the facial skeleton is exceedingly rare. A case of FTC metastasizing to the mandible is presented and a systematic review of the literature describing thyroid metastasis to the facial skeleton is performed. CASE PRESENTATION: A 73-year-old female presented with metastatic FTC to the mandible and underwent total thyroidectomy, segmental mandibulectomy, bone impacted fibular free flap reconstruction, and adjuvant radioactive iodine treatment. The PubMed database was searched for literature describing thyroid cancer with facial skeleton metastasis using the key words "thyroid," "cancer," "carcinoma," "metastasis," and "malignancy" with "oral cavity," "maxilla," "mandible," "sinus," "paranasal," and "orbit." Reports that only involved the soft tissues were excluded. Systematic review revealed 59 cases of well-differentiated thyroid cancer with facial skeleton metastasis: 35 mandibular metastases (21 = FTC), 6 maxilla metastases (2 = FTC), 9 orbital metastases (4 = FTC), and 11 paranasal sinus metastases (7 = FTC). Treatment included surgery, RAI, external beam radiotherapy (XRT), or a combination of these modalities. The one, two, and five-year survival rates were 100%, 79%, and 16%, respectively. CONCLUSION: Facial skeleton metastasis of FTC is a rare clinical challenge. Optimal treatment appears to include total thyroidectomy and resection of involved structures with or without adjuvant treatment.
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Adenocarcinoma Folicular/patología , Huesos Faciales/patología , Neoplasias Faciales/secundario , Neoplasias de la Tiroides/patología , Adenocarcinoma Folicular/cirugía , Anciano , Huesos Faciales/cirugía , Neoplasias Faciales/cirugía , Femenino , Humanos , Pronóstico , Neoplasias de la Tiroides/cirugía , TiroidectomíaRESUMEN
This article aims to review the use of giant bilobed flaps in the reconstruction of various large defects within the head and neck. A single case series study with chart review was performed. Various facial, neck, and mentum defects were documented, and closure was accomplished through a variety of medially and laterally based giant bilobed flaps. Preoperative and postoperative photography, as well as intraoperative planning, was performed. A total of 23 patients were able to achieve closure of facial, head, and neck defects with single-stage closure through the use of a giant bilobed flap. No tissue expanders, free tissue transfers, or skin grafts were required to achieve final closure, with acceptable cosmetic and functional results. Bilobed-shaped flaps allow for local tissue transfer in regions of otherwise limited tissue laxity and mobility, classically designed and utilized in the region of the nose. We describe its applicability to closure of large head and neck defects that may otherwise require free tissue transfer or the use of tissue expanders.
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Neoplasias de Cabeza y Cuello/cirugía , Colgajos Quirúrgicos , Técnicas de Cierre de Heridas , Anciano , Mejilla , Femenino , Humanos , Masculino , Persona de Mediana Edad , Cirugía de Mohs , CuelloRESUMEN
Subcondylar fractures encompass a large portion of mandible fractures. Owing to their proximity to the temporomandibular joint and difficulty achieving surgical exposure, treatment of these fractures has been challenging and highly debated throughout the literature. While no one modality is the accepted gold standard, there are multiple options for addressing these fractures that can yield satisfying results for both patient and surgeon alike. A thorough literature review was conducted using PubMed, analyzing articles in the past 15 years for relevance to the subject matter. Various search terms were used to glean information regarding closed treatment, open treatment, and the risks and benefits of the different surgical approaches involved. The articles were reviewed by all of the authors for applicability and quality of data provided. A total of 50 articles were selected for inclusion in the current study. The open management of subcondylar fractures encompasses a vast array of techniques. While some surgeons advocate closed treatment in some circumstances, open treatment affords numerous advantages with the advent of multiple access modalities. There is no single superior method, and as such, the craniofacial surgeon should have a comprehensive understanding of options so as to select the appropriate option that is individualized to the patient. A clear understanding of fracture biomechanics balanced with patient expectations and operative safety allows for the surgeon to make a sound decision for treatment.
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Fijación Interna de Fracturas/métodos , Fracturas Mandibulares/cirugía , Reducción Abierta/métodos , HumanosRESUMEN
BACKGROUND: Chemical burns are common and may cause significant physical, psychological, social and economic burden. Despite a wide variety of potentially harmful chemicals, important general principals may be drawn in the assessment and initial management of such injuries. Early treatment of chemical burns is crucial and may reduce the period of resulting morbidity. OBJECTIVE: This article reviews the assessment and management of cutaneous chemical burns. DISCUSSION: Assessment of the patient should be rapid and occur in conjunction with early emergency management. Rapid history and pri-mary and secondary survey may be required to exclude systemic side effects of the injury. Depth of wound assessment is difficult given that necrosis caused by various chemicals can continue despite cessation of exposure. Early management should be conducted with consideration of clinician's safety, and appropriate precautions should be taken. Excluding specific situations and chemical exposure, copious irrigation with water remains the mainstay of early management. Referral to a centre of higher acuity may be required for expert evaluation.
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Quemaduras Químicas/diagnóstico , Quemaduras Químicas/terapia , Manejo de la Enfermedad , Diagnóstico Precoz , Derivación y Consulta , Humanos , Factores de TiempoAsunto(s)
Traumatismos Faciales/cirugía , Procedimientos de Cirugía Plástica/métodos , Complicaciones Posoperatorias/prevención & control , Calidad de Vida , Traumatismos de los Tejidos Blandos/cirugía , Cirugía Plástica/métodos , Estética , Traumatismos Faciales/diagnóstico , Femenino , Humanos , Puntaje de Gravedad del Traumatismo , Masculino , Satisfacción del Paciente , Complicaciones Posoperatorias/cirugía , Prevención Primaria , Procedimientos de Cirugía Plástica/efectos adversos , Reoperación , Medición de Riesgo , Traumatismos de los Tejidos Blandos/diagnóstico , Resultado del TratamientoAsunto(s)
Toxinas Botulínicas Tipo A/uso terapéutico , Técnicas Cosméticas/tendencias , Fármacos Dermatológicos/uso terapéutico , Estética , Cuidados de la Piel/métodos , Administración Tópica , Antioxidantes/uso terapéutico , Rellenos Dérmicos , Femenino , Humanos , Terapia por Láser/métodos , Masculino , Medición de Riesgo , Cuidados de la Piel/tendencias , Resultado del Tratamiento , Tretinoina/uso terapéutico , Vitaminas/uso terapéuticoRESUMEN
BACKGROUND: Deep sternal wound infection (DSWI) is a rare but severe complication following cardiac surgery. Our study investigated the risk factors and treatment options for patients who developed DSWI at our institution between May 1988 and April 2008. METHOD: Data was collected prospectively in a database and information on demographics reviewed retrospectively on 5649 patients who underwent cardiac surgery during this period. RESULTS: The incidence of DSWI was 34/5649 (0.6%). These patients were older (mean age 66.1 vs. 64.5), more likely to die (in hospital mortality 11.8% vs. non DSWI group 1.8%) and had longer hospital stays (DSWI group mean stay 25 days vs. non DSWI group 9 days). Using Fisher's exact test the risk predictors for DSWI determined at our institution included diabetes managed with oral medications (p=0.021), previous cardiac surgery (p=0.038), BMI≥30 (p=0.041), LVEF≤30 (p=0.010), IABP usage (p=0.028) and homologous blood usage (p<0.001). Most commonly bilateral pectoralis major muscle flap (BPMMF) was used for treatment of DSWI (11/30, 36.7%). CONCLUSION: Ultimately our data was comparable to published data in the literature on known risk predictors.
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Procedimientos Quirúrgicos Cardíacos/efectos adversos , Esternón/lesiones , Infección de la Herida Quirúrgica/epidemiología , Infección de la Herida Quirúrgica/terapia , Bases de Datos Factuales , Femenino , Humanos , Incidencia , Tiempo de Internación , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Estudios Retrospectivos , Factores de Riesgo , Infección de la Herida Quirúrgica/etiología , Factores de TiempoRESUMEN
PURPOSE: The transition from a breast cancer patient to a survivor can be associated with significant physical, psychological, and social challenges. Development of multidisciplinary evidence-based care during the post-treatment period is a key area of cancer research. This study examined survivorship issues, unmet needs and perceptions about care among a cohort of breast cancer survivors. METHODS: Participants were 130 women diagnosed with breast cancer for at least one year, and attending a hospital breast or oncology outpatient clinic. They completed a series of self-report questionnaires assessing demographic and clinical characteristics, unmet needs, severity of survivorship issues, use of multidisciplinary services, clinical benchmarks, survivorship care satisfaction, and suggestions for service improvements. RESULTS: There was an average of 4.9 unmet survivorship needs, with 67% of participants reporting at least one unmet need. Fear of cancer recurrence, stress, coordination of medical care and negative iatrogenic impacts of hormonal treatments were key concerns. The cancer support team typically consisted of medical and nursing staff, and family/friends, and most were satisfied with their survivorship care. There was minimal use of other multidisciplinary clinicians and support groups. Provision of additional dietary and cancer recurrence education, and a written treatment plan were identified as key areas of service improvement. CONCLUSION: Despite high satisfaction ratings, survivorship issues and unmet needs were relatively common, particularly among younger participants. Use of multidisciplinary care was inconsistent and overall underutilised. IMPLICATIONS FOR CANCER SURVIVORS: Ongoing specific evaluation and optimisation of existing models of multidisciplinary survivorship care are essential in meeting the complex needs of breast cancer survivors.
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Neoplasias de la Mama/psicología , Supervivientes de Cáncer/psicología , Necesidades y Demandas de Servicios de Salud , Evaluación de Necesidades , Supervivencia , Adulto , Anciano , Anciano de 80 o más Años , Australasia/epidemiología , Neoplasias de la Mama/epidemiología , Estudios Transversales , Miedo , Femenino , Humanos , Persona de Mediana Edad , Recurrencia Local de Neoplasia/psicología , Satisfacción del Paciente , Estudios Prospectivos , Calidad de Vida/psicología , AutoinformeRESUMEN
OBJECTIVE: To determine the rate and risk factors for osteoradionecrosis (ORN) in osseous free flaps after postoperative radiation therapy (PORT). To describe the treatment of free flap ORN. METHODS: Seventy-four patients undergoing osseous free flap reconstruction were analyzed. Thirty-eight completed PORT. Patients were followed for ≥6 months. RESULTS: The rate of ORN was 34% overall; 0% with 50 to 59.9 Gy; 8% with 60 Gy; 40% with 66 Gy; 56% with 70 to 74.4 Gy. Mean time to ORN was 13.1 months. 0/28 patients without PORT developed free flap osteonecrosis. Multivariate analysis found the only factor predicting ORN: PORT >60 Gy, which increased the risk 21-fold. Treatment included PENTACLO, hyperbaric oxygen, and surgical debridement with 75% within 2 years. CONCLUSION: PORT >60 Gy is significantly associated with free flap ORN. As the dose of adjuvant RT increases beyond 60 Gy, the risk of ORN in free flaps rises. Consideration should be given to lower PORT doses or delaying free flap reconstruction when feasible.
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Colgajos Tisulares Libres , Enfermedades Mandibulares , Osteorradionecrosis , Procedimientos de Cirugía Plástica , Humanos , Enfermedades Mandibulares/cirugía , Osteorradionecrosis/etiología , Osteorradionecrosis/cirugía , Estudios Retrospectivos , Factores de RiesgoRESUMEN
Microvascular free tissue transfer is an indispensable reconstructive option in head and neck reconstruction. Flap failure is relatively rare, but it is nonetheless very morbid and psychologically devastating to patients when it does occur. Further, complications after free tissue transfer to the head and neck remain common. There are numerous ongoing debates about various facets of preoperative, intraoperative, and postoperative care of patients undergoing free flap reconstruction of the head and neck, all ultimately searching for the optimal treatment algorithm to further improve flap success, minimize complications, and maximize patient outcomes. Herein, the authors review current literature surrounding optimal preoperative nutritional support, intraoperative vasopressor use, perioperative fluid management, use of antithrombotic agents, antibiotic use, and other facets of the care of head and neck free flap patients to provide a guide to surgeons.
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Orbital and craniomaxillofacial defects, in general, are best approached preoperatively by a multidisciplinary team with a clear reconstructive plan in place. Orbital defects result from a myriad of underlying diseases and injuries, and reconstruction after orbital evisceration, enucleation, or exenteration can pose a challenge to the reconstructive team. Reconstruction of orbital injuries with orbital implants and prostheses can lead to acceptable aesthetic outcomes, and the reconstructive surgeon should be familiar with current orbital implants and prostheses. Herein, the authors review terminology and classifications of orbital defects, different types of orbital implants, advantages and disadvantages of different orbital implant reconstructive options, types of orbital prostheses, and pros and cons of different prosthetic options.
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Reconstruction of pharyngoesophageal defects after total laryngectomies and extirpation of hypopharyngeal and upper esophageal carcinomas presents a challenging task. Goals of reconstruction include adequate voice rehabilitation and restoration of normal swallowing. The reconstructive armamentarium contains many options for reconstruction and creation of a new upper digestive tract. This review article focuses on the most commonly used free tissue transfer options for the reconstruction of these defects, with an assessment of their advantages and disadvantages.
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BACKGROUND: There is a lack of published literature on the training in microvascular reconstructive techniques in facial plastic and reconstructive surgery (FPRS) fellowships or of the extent these techniques are continued in practice. This cross-sectional web-based survey study was conducted to describe the volume, variety, and intended extent of practice of free tissue transfers during fellowship and the post-fellowship pattern of microsurgical practice among FPRS surgeons in various private and academic practice settings across the United States. METHODS: This survey was sent to recent graduates (n = 94) of a subset of U.S. Facial Plastic and Reconstructive Surgery fellowship programs that provide significant training in microvascular surgery. RESULTS: Among survey respondents (n = 21, 22% response rate), two-thirds completed 20-100 microvascular cases during fellowship using mainly radial forearm, fibula, anterior lateral thigh, latissimus and rectus free tissue transfers. In post-fellowship practice, those who continue practicing microvascular reconstruction (86%) complete an average of 33 cases annually. The choice of donor tissues for reconstruction mirrored their training. They are assisted primarily by residents (73%) and/or fellows (43%), while some worked with a micro-trained partner, surgical assistant, or performed solo procedures. Interestingly, among those who began in private practice (29%), only half remained with that practice, while those who joined academic practices (71%) largely remained at their initial post-fellowship location (87%). CONCLUSIONS: These results provide the first formal description of the training and practice patterns of FPRS-trained microvascular surgeons. They describe a diverse fellowship training experience that often results in robust microvascular practice. The maintenance of substantial microsurgical caseloads after fellowship runs counter to the perception of high levels of burnout from free tissue transfers among microvascular surgeons. TRIAL REGISTRATION: This study was approved as exempt by the University of Florida Institutional Review Board (#201601526).
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Internado y Residencia , Microcirugia/educación , Procedimientos de Cirugía Plástica/educación , Pautas de la Práctica en Medicina , Cirugía Plástica/educación , Procedimientos Quirúrgicos Vasculares/educación , Competencia Clínica , Estudios Transversales , Becas , Colgajos Tisulares Libres , Humanos , Encuestas y CuestionariosRESUMEN
OBJECTIVE: To determine the two-dimensional (2D) characteristics of flaps necessary to create three-dimensional (3D) tongue anatomy. METHODS: Dissection of 11 fresh, nonpreserved human cadavers was performed. Six defects in each were created: total tongue, total oral tongue, hemiglossectomy, oral hemiglossectomy, total base of tongue, and hemi-base of tongue. The resections were debulked to create flat, 2D mucosal flaps. The dimensions and shapes of these flaps were determined. RESULTS: Each specimen showed consistent dimensions and geometry between cadavers. The total tongue was pear-shaped, the total oral tongue was egg-shaped, the oral hemi-tongue was bullet-shaped, the hemi-tongue resembled a dagger, the total base of tongue was rectangular, and the hemi-base of tongue was hour-glass shaped. CONCLUSION: Typical dimensions and shapes of common tongue defects were determined. It is conceivable that customizing reconstructive flaps based on these data will increase the accuracy of neo-tongue reconstruction, and thus, improve functional outcomes.
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Imagenología Tridimensional , Mucosa Bucal/trasplante , Procedimientos de Cirugía Plástica/métodos , Colgajos Quirúrgicos/trasplante , Lengua/cirugía , Anciano , Cadáver , Femenino , Glosectomía/métodos , Humanos , Masculino , Sensibilidad y EspecificidadRESUMEN
OBJECTIVE: Length of stay (LOS) includes time medically necessary in the hospital and time waiting for discharge (DC) afterward. This DC delay is determined in head and neck free flap patients. Reasons for and factors leading to DC delay, as well as associated adverse outcomes, are elucidated. METHODS: Retrospective chart review was performed for all head and neck free flap surgeries from 2012 to 2017. Data including demographics, comorbidities, and perioperative factors were collected. Regression analyses were performed to identify factors associated with DC delay. RESULTS: In total, 264 patients were included. Mean total LOS was 13.1 days. DC delay occurred in 65% of patients with a mean of 4.8 days. Factors associated with DC delay on univariate analysis included Medicaid/self-pay insurance, DC to a facility, and not having children ( P < .05). Multivariate analysis showed prolonged medically necessary LOS and surgery on a Monday/Friday ( P < .05) were associated with DC delay. Top reasons for DC delay included case management shortages, rejection by facility, and awaiting supplies. Eleven percent experienced complications during the DC delay. DISCUSSION: DC delay can add days and complications to the LOS. Prevention begins preoperatively with DC planning involving the patient's closest family. Understanding limitations of the patient's insurance may help plan DC destination. Optimizing hospital resources when available should be a focus. IMPLICATIONS FOR PRACTICE: Head and neck free flap patients require a team of teams unified in optimizing quality of care. DC delay is a novel quality metric reflecting the team's overall performance. Through strategic DC planning and capitalizing on available resources, DC delay can be minimized.
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Colgajos Tisulares Libres , Neoplasias de Cabeza y Cuello/cirugía , Tiempo de Internación , Alta del Paciente , Procedimientos de Cirugía Plástica , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Neoplasias de Cabeza y Cuello/complicaciones , Neoplasias de Cabeza y Cuello/patología , Humanos , Cobertura del Seguro , Seguro de Salud , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Factores de Riesgo , Factores Socioeconómicos , Resultado del Tratamiento , Adulto JovenRESUMEN
Reconstruction of the head and neck can be a challenging undertaking owing to numerous considerations for successful rehabilitation. Although head and neck defects were once considered irretrievably morbid and associated with a poor quality of life, advances in surgical technique has immensely contributed to the well-being of these patients. However, all patients are not suitable surgical candidates and many have sought nonsurgical options for functional and cosmetic restoration. As such, the advent of prostheses has ameliorated those concerns and provided a viable alternative for select patient populations. Prosthetic reconstruction has evolved significantly over the past decade. Advances in biocompatible materials and imaging adjuncts have spurred further discovery and forward progress. A multidisciplinary approach to head and neck reconstruction focused on appropriate expectations and patient-centered goals is most successfully coordinated by a team of head and neck surgeons, maxillofacial surgeons, and prosthetic specialists. The aim of this article is to provide a comprehensive review of the current trends for prosthetic rehabilitation of head and neck defects, and further elaborate on the limitations and advancements in the field.
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OBJECTIVES/HYPOTHESIS: Head and neck free flap patients require complex postoperative care. The quality of care for these patients often depends on their management from the time they leave the operating room. The purpose of this study was to investigate the impact of a postoperative inpatient coordinator (IC) for head and free flap patients on quality outcomes: length of stay (LOS), 30-day unplanned return to the emergency department (30dRED), 30-day unplanned readmissions (30dUR), and complication rates. STUDY DESIGN: Retrospective cohort study. METHODS: One hundred eighty-eight consecutive patients who underwent head and neck free flap surgery between January 2012 and January 2016 were reviewed using a prospective database. Patients had an IC for their entire hospitalization (group 1) or for less than their entire hospitalization (group 2). Logistic regression analysis was performed to identify risk factors for quality outcomes. RESULTS: Mean LOS was 13.8 days and 17.3 days in groups 1 and 2, respectively (P = .002). The 30dRED rate was 12% and 22%, respectively (P = .04). Group 2 had an increased LOS by 4.1 days (P = .001) and a 2.4 fold increased 30dRED (P = .03). 30dUR and complications were not influenced by the IC (P > .05). CONCLUSIONS: An IC may help decrease LOS and 30dRED in head and neck free flap patients. LEVEL OF EVIDENCE: 4. Laryngoscope, 128:336-342, 2018.
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Colgajos Tisulares Libres/cirugía , Neoplasias de Cabeza y Cuello/cirugía , Cuidados Posoperatorios/métodos , Calidad de la Atención de Salud/estadística & datos numéricos , Adulto , Anciano , Estudios de Cohortes , Bases de Datos Factuales , Femenino , Humanos , Pacientes Internos , Tiempo de Internación/estadística & datos numéricos , Masculino , Persona de Mediana Edad , Evaluación de Resultado en la Atención de Salud , Readmisión del Paciente/estadística & datos numéricos , Médicos , Cuidados Posoperatorios/efectos adversos , Complicaciones Posoperatorias/epidemiología , Mejoramiento de la Calidad/estadística & datos numéricos , Procedimientos de Cirugía Plástica/efectos adversos , Estudios Retrospectivos , Factores de RiesgoRESUMEN
BACKGROUND: Thirty-day hospital readmissions have become a measure of quality of care. Many readmissions enter through the emergency department. The purposes of this study were to determine the rate, risk factors, and costs of 30-day returns to the emergency department (30dEDRs) after head and neck surgery. METHODS: All adult patients undergoing head and neck surgery at the University of Florida from 2012 to 2014 were reviewed. Univariate and multivariate logistic regression analyses were performed to identify risk factors for 30dEDRs. RESULTS: We found 1065 patients who underwent 1173 procedures. There were 88 cases (7.5%) that resulted in 30dEDRs and 55 patients (4.7%) who had 30-day unplanned readmissions (30dURs). Significant predictors of 30dEDRs included: smoking; hypothyroidism; and intensive care unit (ICU) stays. Significant predictors of readmission from an emergency department visit were Charlson Comorbidity Index (CCI) and cancer stage. Total costs of 30dEDRs and any subsequent readmissions topped $500 000. CONCLUSION: The rate of 30dEDRs after head and neck surgery is low; however, these visits increase the hospitals' financial burden as well as patient morbidity. Predictors of 30dEDRs may be utilized to formulate preventative measures.
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Servicio de Urgencia en Hospital/estadística & datos numéricos , Neoplasias de Cabeza y Cuello/cirugía , Costos de la Atención en Salud/estadística & datos numéricos , Readmisión del Paciente/estadística & datos numéricos , Procedimientos Quirúrgicos Operativos/efectos adversos , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Estudios de Cohortes , Servicio de Urgencia en Hospital/economía , Femenino , Florida , Humanos , Masculino , Persona de Mediana Edad , Readmisión del Paciente/economía , Complicaciones Posoperatorias/epidemiología , Estudios Retrospectivos , Factores de Riesgo , Adulto JovenRESUMEN
OBJECTIVE: To examine epigenetic events of aberrant promoter methylation as diagnostic markers in primary head and neck squamous cell carcinoma using a novel multigene approach. Promoter methylation-mediated silencing is a hallmark of several established tumor suppressor genes. Changes in DNA methylation have been reported to occur early in carcinogenesis and therefore are potentially important early indicators of existing disease. DESIGN: A multicandidate gene probe panel interrogated DNA for aberrant methylation status in 22 cancer genes using the methylation-specific multiplex ligation-dependent probe amplification (MS-MLPA) assay. Aberrant promoter hypermethylation was confirmed using methylation-specific polymerase chain reaction after bisulfite treatment. SETTING: Primary care medical center. SUBJECTS: We examined fresh-frozen primary head and neck tumor specimens from 28 patients, including 21 late-stage (19 stage IV and 2 stage III) and 7 early-stage (6 stage II and 1 stage I) tumors. RESULTS: Promoter hypermethylation was observed in 14 of the 28 patients (50%). Genes for RARB, APC, and CHFR were most frequently hypermethylated, occurring in 11 (39%) for RARB, 7 (25%) for CHFR, and 6 (21%) for APC. Aberrant methylation of CHFR was solely a stage IV event. Methylation-specific polymerase chain reaction after bisulfite treatment with conventional and real-time polymerase chain reaction confirmed aberrant methylation for RARB and CHFR. CONCLUSIONS: Promoter methylation profiling of primary head and neck squamous cell carcinoma using multiple target genes identified RARB, APC, and CHFR as frequent epigenetic events. The clinical implications of these genes as diagnostic and treatment biomarkers are highly relevant as attractive targets for cancer therapy, given the reversible nature of epigenetic gene silencing.