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1.
Aesthet Surg J ; 39(1): 66-82, 2019 01 01.
Artículo en Inglés | MEDLINE | ID: mdl-29947738

RESUMEN

Since its advent in the early 1980s, liposuction has made tremendous advancements, making it the most popular aesthetic surgery performed today. The goal of this Continuing Medical Education (CME) article is to provide a foundation of knowledge of the relevant anatomy, preoperative evaluation, intraoperative technique, and postoperative management for surgeons performing liposuction. Finally, the prevention and management of potential complications will be reviewed along with measures to optimize patient safety and outcomes.


Asunto(s)
Contorneado Corporal/efectos adversos , Lipectomía/efectos adversos , Atención Perioperativa/métodos , Complicaciones Posoperatorias/prevención & control , Contorneado Corporal/historia , Contorneado Corporal/métodos , Historia del Siglo XX , Historia del Siglo XXI , Humanos , Lipectomía/historia , Lipectomía/métodos , Seguridad del Paciente , Satisfacción del Paciente , Complicaciones Posoperatorias/etiología , Grasa Subcutánea/anatomía & histología , Grasa Subcutánea/fisiología , Grasa Subcutánea/cirugía , Resultado del Tratamiento
2.
Cleft Palate Craniofac J ; 55(5): 721-727, 2018 05.
Artículo en Inglés | MEDLINE | ID: mdl-29589980

RESUMEN

OBJECTIVE: This study compares the change in midface position following Le Fort III advancement using either rigid external distraction (group 1) or internal distraction (group 2). We hypothesized that, with reference to right-facing cephalometry, internal distraction would result in increased clockwise rotation and inferior displacement of the midface. DESIGN: Le Fort III osteotomies and standardized distraction protocols were performed on 10 cadaveric specimens per group. Right-facing lateral cephalograms were traced and compared across time points to determine change in position at points orbitale, anterior nasal spine (ANS), A-point, and angle ANB. SETTING: Institutional. PATIENTS, PARTICIPANTS: Twenty cadaveric head specimens. INTERVENTIONS: Standard subcranial Le Fort III osteotomies were performed from a coronal approach and adequately mobilized. The specified distraction mechanism was applied and advanced by 15 mm. MAIN OUTCOME MEASURE(S): Changes of position were calculated at various skeletal landmarks: orbitale, ANS, A-point, and ANB. RESULTS: Group 1 demonstrated relatively uniform x-axis advancement with minimal inferior repositioning at the A-point, ANS, and orbitale. Group 2 demonstrated marked variation in x-axis advancement among the 3 points, along with a significant inferior repositioning and clockwise rotation of the midface ( P < .0001). CONCLUSION: External distraction resulted in more uniform advancement of the midface, whereas internal distraction resulted in greater clockwise rotation and inferior displacement. External distraction appears to provide increased vector control of the midface, which is important in creating a customized distraction plan based on the patient's individual occlusal and skeletal needs.


Asunto(s)
Cefalometría/métodos , Disostosis Craneofacial/diagnóstico por imagen , Disostosis Craneofacial/cirugía , Osteogénesis por Distracción/métodos , Osteotomía Le Fort/métodos , Anciano de 80 o más Años , Cadáver , Femenino , Humanos , Masculino , Resultado del Tratamiento
3.
J Surg Oncol ; 111(3): 306-10, 2015 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-25363211

RESUMEN

BACKGROUND AND OBJECTIVES: Epidural analgesia has become the preferred method of pain management for major abdominal surgery. However, the superior form of analgesia for pancreaticoduodenecomy (PD), with regard to non-analgesic outcomes, has been debated. In this study, we compare outcomes of epidural and intravenous analgesia for PD and identify pre-operative factors leading to early epidural discontinuation. METHODS: A retrospective review was performed on 163 patients undergoing PD between 2007 and 2011. We performed regression analyses to measure the predictive success of two groups of analgesia on morbidity and mortality and to identify predictors of epidural failure. RESULTS: Intravenous analgesia alone was given to 14 (9%) patients and 149 patients (91%) received epidural analgesia alone or in conjunction with intravenous analgesia. Morbidity and mortality were not significantly different between the two groups. Early epidural discontinuation was necessary in 22 patients (15%). Those older than 72 and with a BMI < 20 (n = 5) had their epidural discontinued in 80% of cases compared to 12% not meeting these criteria. However, early epidural discontinuation was not associated with increased morbidity and mortality. CONCLUSION: Epidural analgesia may be contraindicated in elderly, underweight patients undergoing PD given their increased risk of epidural-induced hypotension or malfunction.


Asunto(s)
Analgesia Epidural/efectos adversos , Hipotensión/etiología , Dolor Postoperatorio/tratamiento farmacológico , Neoplasias Pancreáticas/complicaciones , Pancreaticoduodenectomía/efectos adversos , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Estudios de Seguimiento , Humanos , Hipotensión/mortalidad , Masculino , Persona de Mediana Edad , Manejo del Dolor , Dolor Postoperatorio/etiología , Dolor Postoperatorio/mortalidad , Neoplasias Pancreáticas/mortalidad , Neoplasias Pancreáticas/cirugía , Pancreaticoduodenectomía/mortalidad , Pronóstico , Estudios Prospectivos , Estudios Retrospectivos , Tasa de Supervivencia
4.
J Craniofac Surg ; 26(5): 1584-6, 2015 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-26106998

RESUMEN

BACKGROUND: Virtual surgical planning using three-dimensional (3D) printing technology has improved surgical efficiency and precision. A limitation to this technology is that production of 3D surgical models requires a third-party source, leading to increased costs (up to $4000) and prolonged assembly times (averaging 2-3 weeks). The purpose of this study is to evaluate the feasibility, cost, and production time of customized skull models created by an "in-office" 3D printer for craniofacial reconstruction. METHODS: Two patients underwent craniofacial reconstruction with the assistance of "in-office" 3D printing technology. Three-dimensional skull models were created from a bioplastic filament with a 3D printer using computed tomography (CT) image data. The cost and production time for each model were measured. RESULTS: For both patients, a customized 3D surgical model was used preoperatively to plan split calvarial bone grafting and intraoperatively to more efficiently and precisely perform the craniofacial reconstruction. The average cost for surgical model production with the "in-office" 3D printer was $25 (cost of bioplastic materials used to create surgical model) and the average production time was 14  hours. CONCLUSIONS: Virtual surgical planning using "in office" 3D printing is feasible and allows for a more cost-effective and less time consuming method for creating surgical models and guides. By bringing 3D printing to the office setting, we hope to improve intraoperative efficiency, surgical precision, and overall cost for various types of craniofacial and reconstructive surgery.


Asunto(s)
Craneotomía/métodos , Modelos Anatómicos , Planificación de Atención al Paciente , Procedimientos de Cirugía Plástica/métodos , Impresión Tridimensional , Cirugía Asistida por Computador/métodos , Interfaz Usuario-Computador , Adulto , Pérdida de Sangre Quirúrgica , Trasplante Óseo/métodos , Niño , Diseño Asistido por Computadora , Análisis Costo-Beneficio , Craneotomía/economía , Estudios de Factibilidad , Humanos , Tiempo de Internación , Masculino , Tempo Operativo , Planificación de Atención al Paciente/economía , Procedimientos de Cirugía Plástica/economía , Cirugía Asistida por Computador/economía , Tomografía Computarizada por Rayos X/métodos , Flujo de Trabajo
5.
J Surg Res ; 185(2): e101-8, 2013 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-23845868

RESUMEN

BACKGROUND: Aspiration of gastroesophageal refluxate has been implicated in the pathogenesis of idiopathic pulmonary fibrosis (IPF) and the progression of bronchiolitis obliterans syndrome after lung transplantation. The goals of the present study were to identify lung transplant patients at the greatest risk of aspiration and to investigate the causative factors. MATERIALS AND METHODS: From September 2009 to November 2011, 252 bronchoalveolar lavage fluid (BALF) samples were collected from 100 lung transplant patients. The BALF pepsin concentrations and the results of transbronchial biopsy, esophageal function testing, barium swallow, and gastric emptying scan were compared among those with the most common end-stage lung diseases requiring lung transplantation: IPF, chronic obstructive pulmonary disease, cystic fibrosis, and α1-antitrypsin deficiency. RESULTS: Patients with IPF had higher BALF pepsin concentrations and a greater frequency of acute rejection than those with α1-antitrypsin deficiency, cystic fibrosis, or chronic obstructive pulmonary disease (P = 0.037). Moreover, the BALF pepsin concentrations correlated negatively with a lower esophageal sphincter pressure and distal esophageal amplitude; negatively with distal esophageal amplitude and positively with total esophageal acid time, longest reflux episode, and DeMeester score in those with chronic obstructive pulmonary disease; and negatively with the upright acid clearance time in those with IPF. CONCLUSIONS: Our results suggest that patients with IPF after lung transplantation are at increased risk of aspiration and a greater frequency of acute rejection episodes, and that the risk factors for aspiration might be different among those with the most common end-stage lung diseases who have undergone lung transplantation. These results support the role of evaluating the BALF for markers of aspiration in assessing lung transplant patients as candidates for antireflux surgery.


Asunto(s)
Líquido del Lavado Bronquioalveolar/química , Fibrosis Pulmonar Idiopática/etiología , Fibrosis Pulmonar Idiopática/metabolismo , Trasplante de Pulmón/efectos adversos , Pepsina A/metabolismo , Bronquiolitis Obliterante/epidemiología , Bronquiolitis Obliterante/etiología , Bronquiolitis Obliterante/metabolismo , Femenino , Reflujo Gastroesofágico/epidemiología , Reflujo Gastroesofágico/etiología , Reflujo Gastroesofágico/metabolismo , Humanos , Concentración de Iones de Hidrógeno , Fibrosis Pulmonar Idiopática/epidemiología , Masculino , Manometría , Persona de Mediana Edad , Pepsina A/análisis , Neumonía por Aspiración/epidemiología , Neumonía por Aspiración/etiología , Neumonía por Aspiración/metabolismo , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/etiología , Complicaciones Posoperatorias/metabolismo , Factores de Riesgo
6.
Plast Reconstr Surg ; 143(4): 734e-743e, 2019 04.
Artículo en Inglés | MEDLINE | ID: mdl-30113446

RESUMEN

The position of the nasal tip holds important aesthetic significance. Cephalic rotation of the nasal tip is a frequent motivating factor for patients seeking rhinoplasty. The position of the nasal tip is a complex interplay of the size, morphology, and position of several anatomical components of the lower one-third of the nose. Cephalic rotation can be achieved by means of six different methods. The indirect methods promote passive cephalic rotation and include cephalic trim of the lower lateral cartilages, caudal trim of the upper lateral cartilages, and caudal septal trim. Direct methods involve precise repositioning of the domes and include shortening the lateral crura, lateral domal relocation, and the tip rotation suture. Used alone or in combination, these techniques and their subtle variations represent comprehensive and effective methods to achieve cephalic rotation of the nasal tip.


Asunto(s)
Nariz/cirugía , Rinoplastia/métodos , Estética , Femenino , Humanos , Masculino , Motivación , Cartílagos Nasales/cirugía , Tabique Nasal/cirugía , Rinoplastia/psicología , Rotación , Técnicas de Sutura
7.
Plast Reconstr Surg ; 142(3): 373e-387e, 2018 09.
Artículo en Inglés | MEDLINE | ID: mdl-30148788

RESUMEN

LEARNING OBJECTIVES: After studying this article, the participant should be able to: 1. Characterize basal and squamous cell carcinomas as low or high risk based on size, location, histology, and clinical features. 2. Understand appropriate surgical margins in low- and high-risk lesions, and other management options, including Mohs micrographic surgery, electrodissection and curettage, topical agents, cryotherapy, photodynamic therapy, and radiation therapy. 3. Discuss adjuvant therapies for locally advanced and metastatic disease, including radiation therapy, chemotherapy, and targeted therapies such as hedgehog pathway inhibitors. 4. Educate patients on preventive measures such as skin examinations, sun protection, oral retinoids, and oral nicotinamide (vitamin B3). 5. Devise a reconstructive plan once clear oncologic margins are obtained. SUMMARY: With the growing incidence of basal and squamous cell carcinoma, there is an increasing demand for appropriate oncologic management and aesthetic reconstruction. The goal of this CME article is to provide a foundation of knowledge to accurately diagnose, stage, and treat nonmelanoma skin cancers. In addition, it provides the practicing plastic surgeon alternate tools for managing these skin lesions, including topical agents, destructive therapies, and radiation therapy. Lastly, reconstructive plans for selected soft-tissue defects are discussed.


Asunto(s)
Carcinoma Basocelular/terapia , Carcinoma de Células Escamosas/terapia , Procedimientos Quirúrgicos Dermatologicos/métodos , Procedimientos de Cirugía Plástica/métodos , Neoplasias Cutáneas/terapia , Carcinoma Basocelular/diagnóstico , Carcinoma Basocelular/epidemiología , Carcinoma Basocelular/patología , Carcinoma de Células Escamosas/diagnóstico , Carcinoma de Células Escamosas/epidemiología , Carcinoma de Células Escamosas/patología , Terapia Combinada/efectos adversos , Terapia Combinada/métodos , Procedimientos Quirúrgicos Dermatologicos/efectos adversos , Humanos , Recurrencia Local de Neoplasia/patología , Recurrencia Local de Neoplasia/prevención & control , Piel/patología , Piel/efectos de la radiación , Neoplasias Cutáneas/diagnóstico , Neoplasias Cutáneas/epidemiología , Neoplasias Cutáneas/patología
8.
Plast Reconstr Surg ; 141(4): 902-908, 2018 04.
Artículo en Inglés | MEDLINE | ID: mdl-29595724

RESUMEN

BACKGROUND: Outpatient surgery offers many advantages, including cost-containment, privacy, and convenience. However, patient safety must take precedence over these benefits. Limited well-designed studies exist in the plastic surgery literature on patient safety in the outpatient setting, particularly those that identify risk factors for adverse outcomes. METHODS: A retrospective review was performed on 26,032 consecutive cases completed by board-certified plastic surgeons at an accredited outpatient surgical center between 1995 and 2017. All cases were reviewed for potential morbidity and mortality events, and variables were analyzed to determine potential risk factors for postoperative complications and inpatient admission. RESULTS: A total of 26,032 cases were performed over a 23-year period. There were a total of 203 complications (0.78 percent). Compared with the control population, the 12 patients (0.05 percent) that sustained venous thromboembolic events demonstrated higher body mass indexes (p < 0.01), greater lipoaspirate amounts (p = 0.04), longer operative times (p < 0.01), and were more likely to have undergone a combined procedure (p < 0.01). In addition, the 22 patients (0.08 percent) that were transferred to inpatient facilities demonstrated greater body mass index (p < 0.01) and longer operative times (p = 0.01). CONCLUSIONS: Plastic surgery is safe to perform in an accredited outpatient facility for a majority of patients. According to the authors' data, postoperative monitoring in a nursing facility should be considered for the following high-risk patients: those with a body mass index greater than 30 kg/m, operative times greater than 4 hours, lipoaspirate volumes greater than 3 liters, and those undergoing combined procedures. CLINICAL QUESTION/LEVEL OF EVIDENCE: Risk, III.


Asunto(s)
Procedimientos Quirúrgicos Ambulatorios , Seguridad del Paciente , Procedimientos de Cirugía Plástica , Complicaciones Posoperatorias/etiología , Adulto , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Evaluación de Resultado en la Atención de Salud , Admisión del Paciente/estadística & datos numéricos , Complicaciones Posoperatorias/epidemiología , Estudios Retrospectivos , Factores de Riesgo
9.
Plast Reconstr Surg Glob Open ; 4(5): e717, 2016 May.
Artículo en Inglés | MEDLINE | ID: mdl-27579241

RESUMEN

Traditional microsurgery can lead surgeons to use postures that cause musculoskeletal fatigue, leaving them more prone to work-related injuries. A new technology from TrueVision transmits the microscopic image onto a 3-dimensional (3D) monitor, allowing surgeons to operate while sitting/standing in a heads-up position. The purpose of this study was to evaluate the feasibility of performing heads-up 3D microscopy as a more ergonomic alternative to traditional microsurgery. A feasibility study was conducted comparing heads-up 3D microscopy and traditional microscopy by performing femoral artery anastomoses on 8 Sprague-Dawley rats. Operative times and patency rates for each technology were compared. The 8 microsurgeons completed a questionnaire comparing image quality, comfort, technical feasibility, and educational value of the 2 technologies. Rat femoral artery anastomoses were successfully carried out by all 8 microsurgeons with each technology. There was no significant difference in anastomosis time between heads-up 3D and traditional microscopy (average times, 34.5 and 33.8 minutes, respectively; P = 0.66). Heads-up 3D microscopy was rated superior in neck and back comfort by 75% of participants. Image resolution, field of view, and technical feasibility were found to be superior or equivalent in 75% of participants, whereas 63% evaluated depth perception to be superior or equivalent. Heads-up 3D microscopy is a new technology that improves comfort for the microsurgeon without compromising image quality or technical feasibility. Its use has become prevalent in the field of ophthalmology and may also have utility in plastic and reconstructive surgery.

11.
J Gastrointest Surg ; 17(8): 1526-35, 2013 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-23615806

RESUMEN

INTRODUCTION: Gastroesophageal reflux disease (GERD) is the most prevalent gastrointestinal disorder in the USA. Heartburn is the symptom most commonly associated with this disease, and the highly commercialized medical treatment directed toward relief of this symptom represents a 10-billion-dollar-per-year industry. DISCUSSION: Unfortunately, there is often little awareness that GERD can be potentially a lethal disease as it can cause esophageal cancer. Furthermore, there is even less awareness about the relationship between GERD and respiratory disorders with the potential for severe morbidity and even mortality.


Asunto(s)
Reflujo Gastroesofágico/epidemiología , Reflujo Gastroesofágico/fisiopatología , Fibrosis Pulmonar Idiopática/epidemiología , Esofagitis/epidemiología , Reflujo Gastroesofágico/complicaciones , Hernia Hiatal/epidemiología , Humanos , Fibrosis Pulmonar Idiopática/etiología , Incidencia , Prevalencia
12.
Am J Surg ; 204(5): e21-6, 2012 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-22921151

RESUMEN

BACKGROUND: Gastroesophageal reflux disease (GERD) in lung transplant patients is being increasingly investigated because of its reported association with chronic rejection. However, information concerning the characteristics of GERD in cystic fibrosis (CF) patients is scarce. METHODS: We compared esophageal pH monitoring, manometry, gastric emptying studies, and barium swallow of 10 lung transplant patients with CF with those of 78 lung transplant patients with other end-stage pulmonary diseases. RESULTS: In lung transplant patients with CF, the prevalence of GERD was 90% (vs 54% controls, P = .04), of whom 70% had proximal reflux (vs 29% controls, P = .02). CONCLUSIONS: Lung transplant patients with CF have a significantly higher prevalence and proximal extent of GERD than do other lung transplant recipients. These data suggest that CF patients in particular should be routinely screened for GERD after transplantation to identify those who may benefit from antireflux surgery, especially given the risks of GERD-related aspiration and chronic allograft injury.


Asunto(s)
Fibrosis Quística/cirugía , Reflujo Gastroesofágico/etiología , Trasplante de Pulmón , Complicaciones Posoperatorias , Adolescente , Adulto , Anciano , Sulfato de Bario , Estudios de Casos y Controles , Medios de Contraste , Fibrosis Quística/complicaciones , Monitorización del pH Esofágico , Femenino , Vaciamiento Gástrico , Reflujo Gastroesofágico/diagnóstico , Reflujo Gastroesofágico/epidemiología , Humanos , Masculino , Manometría , Persona de Mediana Edad , Complicaciones Posoperatorias/diagnóstico , Complicaciones Posoperatorias/epidemiología , Prevalencia , Estudios Retrospectivos , Adulto Joven
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