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1.
J Craniofac Surg ; 35(1): e31-e32, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-37782138

RESUMO

A 60-year-old woman with a ∼450 cm 2 right cervicofacial defect following successful treatment of necrotizing fasciitis was consulted for reconstruction. She had complete orbital, malar, buccal, labial, submental, and anterolateral neck skin and soft tissue defects and near complete defects of the forehead and nasal sidewall. She underwent reconstruction with a large 24 cm×11 cm supraclavicular, deltopectoral, forehead rotational, and labial advancement flaps with skin grafting of the orbit. Follow-up at 2 months demonstrated complete take of all flaps. The patient was satisfied with her appearance and considered her outcome favorable. She exhibited comparably premorbid speech and oral competence. Large defects of the head and neck require thorough surgical planning and consideration of a subunit reconstruction technique. While free tissue transfer provides a large area of healthy tissue from a suitable donor site, subunit reconstruction with local and regional flaps can provide a superior outcome in the correct patient.


Assuntos
Fasciite Necrosante , Procedimentos de Cirurgia Plástica , Humanos , Feminino , Pessoa de Meia-Idade , Fasciite Necrosante/cirurgia , Retalhos Cirúrgicos , Transplante de Pele , Testa
2.
J Craniofac Surg ; 34(8): 2455-2459, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37800941

RESUMO

Computer-aided design and computer-aided manufacturing and digitally simulated surgeries have revolutionized maxillomandibular reconstruction. In particular, this technology has increased the accuracy and facilitated the process of dental implantation in fibula free flaps. Despite the efficacy of virtual planning, there is a minor degree of translational difference between digital and intraoperative measurements, which may affect the precision of implant and fibula orientations. This is especially concerning during the last stage of fibula insetting, where the graft segments have the potential to roll, yaw, or pitch. The objective of this study is to describe an advanced prosthodontic technique that ensures the fibula grafts and implants remain in a restorable position during final insetting. We describe the technique and workflow of the implant-borne articulation splint through a case presentation and demonstrate results at 4 months postoperative and postradiotherapy. Given the degree of investment placed in virtual planning, free flap reconstruction, and endosteal implants, a technique that ensures optimal restorability of each implant is pivotal. Larger studies are still required to fully elucidate the cost-effectiveness and long-term results of the implant-borne articulation splint.


Assuntos
Implantes Dentários , Retalhos de Tecido Biológico , Reconstrução Mandibular , Humanos , Retalhos de Tecido Biológico/cirurgia , Reconstrução Mandibular/métodos , Fíbula/transplante , Contenções , Transplante Ósseo/métodos
3.
Am J Otolaryngol ; 42(6): 103142, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34174670

RESUMO

PURPOSE: The aim of this systematic review is to compare the perioperative characteristics and outcomes of submental artery island flap (SAIF) to free tissue transfer (FTT) in head and neck reconstruction. MATERIALS AND METHODS: Screening and data extraction were done with Pubmed, Embase, and Web of Science databases by two independent authors to identify randomized and observational studies that compared patient outcomes for SAIF vs. FTT for reconstruction head and neck cancer ablative surgery. Data were pooled with random-effects meta-analysis to determine pooled difference in means (DM), absolute risk differences, and 95% confidence intervals (CI). Heterogeneity was assessed with the I-squared statistic. RESULTS: Initial query yielded 997 results, of which 7 studies met inclusion criteria. The pooled sample sizes for the SAIF and FTT cohorts were 155 and 198, respectively. SAIF reduced mean operative time by 193 min (95% CI -160 to -227), reduced hospital stay by 2.1 days (95% CI -0.9 to -3.4), and had a smaller flap area of 22.5cm2 (95% CI 6.5 to 38.4). SAIF had a 5% higher incidence of partial flap necrosis than FTT (95% CI, 1 to 10), but all other perioperative complications, including recurrence rate in malignant cases, were statistically comparable. CONCLUSIONS: The SAIF requires less operative time, hospital stay, and has comparable perioperative outcomes to FTT, but the area of flap harvest is significantly smaller. The findings of this study add to the growing body of evidence demonstrating the safety and reliability of SAIF in head and neck reconstruction.


Assuntos
Neoplasias de Cabeça e Pescoço/embriologia , Neoplasias de Cabeça e Pescoço/cirurgia , Procedimentos Cirúrgicos Otorrinolaringológicos/métodos , Procedimentos de Cirurgia Plástica/métodos , Retalhos Cirúrgicos , Idoso , Idoso de 80 Anos ou mais , Feminino , Retalhos de Tecido Biológico , Humanos , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Duração da Cirurgia , Procedimentos Cirúrgicos Otorrinolaringológicos/efeitos adversos , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/etiologia , Procedimentos de Cirurgia Plástica/efeitos adversos , Recidiva , Retalhos Cirúrgicos/efeitos adversos
4.
Facial Plast Surg ; 37(4): 543-549, 2021 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-34082455

RESUMO

Vascular compromise leading to cutaneous loss following surgical rhinoplasty is a devastating complication. The objective of this review is to identify all reported cases in literature published in English and summarize the current evidence to identify the patients at risk of this complication following surgery. A comprehensive literature review using Medline and Embase databases was performed to capture all reported cases of cutaneous vascular compromise following rhinoplasty from database inception through September 2020. Nonsurgical rhinoplasty cases were excluded. We identified eight studies that featured vascular cutaneous compromise following surgical rhinoplasty. A total of 18 patients were included in the analysis. The majority of the patients were females with a mean age of 30.9. Risk factors included smoking in 23.5% patients and revision setting. Extensive tip thinning, tight splinting and taping with dorsal onlay grafting, or combining extended alar base excision with revision open rhinoplasty were among surgical techniques associated with vascular compromise. The most commonly affected aesthetic nasal subunit in our review was the dorsum followed by the nasal tip. Conservative management primarily was utilized in 72.2% of patients, allowing the defect to heal by secondary intention. Studies reporting on cutaneous vascular compromise following surgical rhinoplasty are of low level of evidence. This review is the largest summary reporting on this complication to date, aiming to caution surgeons about associated techniques and management options. We also share an expert opinion on preoperative assessment of nasal skin to guide surgeons to potentially avoid rhinoplasty surgery in this subset of patients.


Assuntos
Rinoplastia , Estética Dentária , Feminino , Humanos , Necrose/etiologia , Nariz/cirurgia , Reoperação , Rinoplastia/efeitos adversos
5.
Epilepsia ; 61(2): e13-e16, 2020 02.
Artigo em Inglês | MEDLINE | ID: mdl-31944280

RESUMO

The mechanism(s) for sudden death in epilepsy (SUDEP) remain(s) unknown, but seizure spread to brainstem areas serving autonomic and respiratory function is critical. In a rat model, we established a mechanism for SUDEP that involves seizure-induced laryngospasm and obstructive apnea lasting until respiratory arrest. We hypothesized that DBA/2J mice, which display lethal audiogenic seizures, would be protected from death by implanting a tracheal T-tube as a surrogate airway. In a 2 × 2 design, mice were implanted with either open or closed tracheal T-tubes and treated with either low-dose ketamine/xylazine to moderate thoracic spasm during the tonic seizure phase or no drug. Animals receiving both treatments had the highest survival rate, followed by animals receiving the open tube without ketamine/xylazine. The odds ratio for survival was >20 higher with an open T-tube (odds ratio = 24.14). The impact of open tracheal tubes indicates that the mechanism of death in DBA/2J mice involves seizure-induced upper airway obstruction until respiratory arrest. These results, our rat work, and our demonstration of inspiratory effort-based electromyographic signals and electrocardiographic abnormalities in rats and humans suggest that seizure-induced laryngospasm and obstructive apnea directly link seizure activity to respiratory arrest in these sudden death examples.


Assuntos
Obstrução das Vias Respiratórias/etiologia , Epilepsia Reflexa/genética , Próteses e Implantes , Convulsões/complicações , Convulsões/terapia , Traqueia , Obstrução das Vias Respiratórias/cirurgia , Animais , Morte Súbita/etiologia , Eletrocardiografia , Desenho de Equipamento , Parada Cardíaca , Laringismo/etiologia , Camundongos , Camundongos Endogâmicos DBA , Morte Súbita Inesperada na Epilepsia
6.
J Craniofac Surg ; 31(5): 1212-1217, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32224781

RESUMO

The "Jaw in a Day" (JIAD) technique, first described by Levine and colleagues, establishes immediate functional occlusion through a single-stage maxillomandibular reconstruction with concurrent implant placement and provisional prosthesis delivery. In this study, the authors describe 2 cases exemplifying the reconstructive principles of JIAD. One patient underwent mandibular reconstruction with the JIAD technique and another patient underwent JIAD with an optimized rapid sequence computer-aided design and computer-aided manufacturing (CAD-CAM) for composite maxillomandibular reconstruction. Immediate implant-borne prosthesis was fixated and all implants osseointegrated into the neomandible. Although the authors' patient outcomes are consistent with the literature, the published reports of JIAD remain limited, and further studies are required to assess the long-term functional and aesthetic outcomes as well as cost-effectiveness of this approach.


Assuntos
Procedimentos Cirúrgicos Ortognáticos , Desenho Assistido por Computador , Feminino , Humanos , Arcada Osseodentária , Masculino , Pessoa de Meia-Idade , Implantação de Prótese
7.
Ann Vasc Surg ; 53: 267.e1-267.e4, 2018 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-30012451

RESUMO

Tracheoarterial fistula is a rare complication of tracheostomy with an incidence of less than 1%. Survival of this disease entity is low, and it likely results from a major open operation in a high-risk surgical group. In our review of the literature, a tracheoinnominate artery fistula is the most commonly reported arterial fistula. However, we present a rare case of tracheo-left subclavian artery fistula. We have identified 1 previous case of tracheo-left subclavian fistula as a source of massive tracheal bleeding. In our case report, we describe the successful management of this disease by endograft placement. Owing to its rarity, there are no guidelines on the management approach to tracheoarterial fistulas, but given the difficulty of controlling this problem via median sternotomy, the placement of a covered stent may be the best therapy. Initially, case reports showed a role for endograft placement as a temporizing measure, but the risk of infection may be sufficiently low to justify this approach as a definitive therapy. Upon a 6-month follow-up, our patient remains without recurrence of bleeding or infection, and computed tomography angiography of the chest with 3D reconstruction has shown patency of the endovascular stent with resolution of the associated pseudoaneurysm.


Assuntos
Falso Aneurisma/cirurgia , Implante de Prótese Vascular , Procedimentos Endovasculares , Fístula do Sistema Respiratório/cirurgia , Artéria Subclávia/cirurgia , Doenças da Traqueia/cirurgia , Fístula Vascular/cirurgia , Idoso , Falso Aneurisma/diagnóstico por imagem , Prótese Vascular , Implante de Prótese Vascular/instrumentação , Angiografia por Tomografia Computadorizada , Procedimentos Endovasculares/instrumentação , Feminino , Humanos , Fístula do Sistema Respiratório/diagnóstico por imagem , Stents , Artéria Subclávia/diagnóstico por imagem , Doenças da Traqueia/diagnóstico por imagem , Resultado do Tratamento , Fístula Vascular/diagnóstico por imagem
8.
Ann Surg Oncol ; 22(5): 1701-7, 2015 May.
Artigo em Inglês | MEDLINE | ID: mdl-25190128

RESUMO

PURPOSE: Previous studies have reported that an elevated preoperative Neutrophil-Lymphocyte Ratio (NLR) is associated with poor prognosis in patients with various solid tumors including colorectal cancer (CRC). Here, we examine whether NLR predicts survival in patients with unresectable CRC metastases undergoing hepatic radioembolization. METHODS: A retrospective review of 104 consecutive patients with unresectable metastatic CRC who were treated with radioembolization after failing first and second-line chemotherapy. RESULTS: Between 2002 and 2012, the median NLR for all patients was 4.6. Using receiver operating curve analysis, there was no difference between using an NLR cut-off of 4.6 or 5. Forty-eight patients had a high NLR of ≥5 and 56 patients had an NLR of <5. Patients in both groups had similar previous extensive chemotherapy and liver-directed interventions. The median survival of patients with high NLR was 5.6 months (range 4.9-7.9 months) compared with 10.6 months (range 8.3-17.0 months) for patients with low NLR; a significant difference was found in overall survival (log-rank test; p = 0.001). Other factors associated with risk of death were extrahepatic spread of disease, presence of pulmonary nodules, previous liver-targeted intervention, and radiographic response. On multivariate analysis, high NLR, progressive radiographic response, and presence of extrahepatic disease remained independently associated with increased risk of death. CONCLUSIONS: NLR is a simply attainable, inexpensive, and useful biomarker to predict outcome in patients with metastatic colorectal cancer receiving radioembolization.


Assuntos
Neoplasias Colorretais/mortalidade , Embolização Terapêutica/mortalidade , Neoplasias Hepáticas/mortalidade , Linfócitos/patologia , Neutrófilos/patologia , Radioisótopos de Ítrio/farmacologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Neoplasias Colorretais/patologia , Neoplasias Colorretais/terapia , Feminino , Seguimentos , Humanos , Neoplasias Hepáticas/secundário , Neoplasias Hepáticas/terapia , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Prognóstico , Compostos Radiofarmacêuticos/farmacologia , Estudos Retrospectivos , Taxa de Sobrevida
9.
J Vasc Interv Radiol ; 26(6): 816-24.e1, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-25824315

RESUMO

PURPOSE: To assess the prognostic value of neutrophil-to-lymphocyte ratio (NLR) in patients with unresectable intermediate- or advanced-stage hepatocellular carcinoma (HCC) treated with yttrium-90 radioembolization (RE). MATERIALS AND METHODS: Retrospective chart review was performed for 176 patients with intermediate- or advanced-stage HCC treated with RE between August 2000 and November 2012. The appropriate NLR cutoff was determined by receiver operating characteristic curves. Demographic, clinical, radiographic, and pathologic parameters were compared between patients with a normal NLR (< 5) and those with an elevated NLR (≥ 5) before RE. Barcelona Clinic Liver Cancer (BCLC) stage-stratified univariate and multivariate analyses were conducted to determine variables associated with overall survival. RESULTS: Under univariate analyses, patients with a normal NLR were found to have longer survival than individuals with a high NLR in intermediate/advanced-disease and advanced-disease cohorts. A multivariate Cox proportional-hazards model in the advanced-disease group confirmed that elevated NLR, high α-fetoprotein level, and low albumin level were independent predictors of worse survival. CONCLUSIONS: This study provides stage-dependent evidence for the prognostic role of NLR in the radioembolized HCC cohort. Patients with BCLC stage C disease with elevated NLR may not derive benefit from RE, and other intervening modalities should be explored in this subpopulation.


Assuntos
Carcinoma Hepatocelular/radioterapia , Embolização Terapêutica/métodos , Neoplasias Hepáticas/radioterapia , Contagem de Linfócitos , Linfócitos , Neutrófilos , Compostos Radiofarmacêuticos/administração & dosagem , Radioisótopos de Ítrio/administração & dosagem , Idoso , Área Sob a Curva , Carcinoma Hepatocelular/sangue , Carcinoma Hepatocelular/mortalidade , Carcinoma Hepatocelular/patologia , Distribuição de Qui-Quadrado , Embolização Terapêutica/efeitos adversos , Embolização Terapêutica/mortalidade , Feminino , Humanos , Estimativa de Kaplan-Meier , Neoplasias Hepáticas/sangue , Neoplasias Hepáticas/mortalidade , Neoplasias Hepáticas/patologia , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Estadiamento de Neoplasias , Valor Preditivo dos Testes , Modelos de Riscos Proporcionais , Curva ROC , Compostos Radiofarmacêuticos/efeitos adversos , Estudos Retrospectivos , Fatores de Risco , Fatores de Tempo , Resultado do Tratamento , Radioisótopos de Ítrio/efeitos adversos
10.
Ann Surg ; 259(3): 549-55, 2014 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-24045442

RESUMO

OBJECTIVE: To perform a matched comparison of surgical and postsurgical outcomes between our robotic and laparoscopic hepatic resection experience. BACKGROUND: The application of robotic technology and technique to liver surgery has grown. Robotic methods may have the potential to overcome certain laparoscopic disadvantages, but few studies have drawn a matched comparison of outcomes between robotic and laparoscopic liver resections. METHODS: Demographics, intraoperative variables, and postoperative outcomes among patients undergoing robotic (n = 57) and laparoscopic (n = 114) hepatic resections between November 2007 and December 2011 were reviewed. A 1:2 matched analysis was performed by individually matching patients in the robotic cohort to patients in the laparoscopic cohort based on demographics, comorbidities, performance status, and extent of liver resection. RESULTS: Matched patients undergoing robotic and laparoscopic liver resections displayed no significant differences in operative and postoperative outcomes as measured by blood loss, transfusion rate, R0 negative margin rate, postoperative peak bilirubin, postoperative intensive care unit admission rate, length of stay, and 90-day mortality. Patients undergoing robotic liver surgery had significantly longer operative times (median: 253 vs 199 minutes) and overall room times (median: 342 vs 262 minutes) compared with their laparoscopic counterparts. However, the robotic approach allowed for an increased percentage of major hepatectomies to be performed in a purely minimally invasive fashion (81% vs 7.1%, P < 0.05). CONCLUSIONS: This is the largest series comparing robotic to laparoscopic liver resections. Robotic and laparoscopic liver resection display similar safety and feasibility for hepatectomies. Although a greater proportion of robotic cases were completed in a totally minimally invasive manner, there were no significant benefits over laparoscopic techniques in operative outcomes.


Assuntos
Hepatectomia/métodos , Laparoscopia/métodos , Neoplasias Hepáticas/cirurgia , Robótica/métodos , Perda Sanguínea Cirúrgica/mortalidade , Perda Sanguínea Cirúrgica/prevenção & controle , Transfusão de Sangue , Feminino , Seguimentos , Humanos , Incidência , Tempo de Internação/tendências , Neoplasias Hepáticas/mortalidade , Masculino , Pessoa de Meia-Idade , Duração da Cirurgia , Pennsylvania/epidemiologia , Complicações Pós-Operatórias/epidemiologia , Estudos Retrospectivos , Taxa de Sobrevida/tendências , Resultado do Tratamento
11.
HPB (Oxford) ; 16(12): 1110-6, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25123597

RESUMO

AIM: To evaluate the outcomes among elderly (≥70 years) and younger patients (<70 years) with liver-dominant metastatic colorectal cancer (mCRC) who received radioembolization (RE) as salvage therapy. METHODS: A retrospective review of 107 consecutive patients with unresectable mCRC treated with RE after failing first- and second-line chemotherapy. RESULTS: From 2002 to 2012, 44 elderly and 63 younger (<70 years) patients received RE. Patients had similar previous extensive chemotherapy and liver-directed interventions. Using modified Response Evaluation Criteria in Solid Tumors (mRECIST) criteria, either a stable or a partial radiographical response was seen in 65.8% of the younger compared with 76.5% of the elderly patients. RE was equally well tolerated in both groups and common procedure-related adverse events were predominantly grade 1-2 and of short duration. No significant difference was found with regard to overall median survival between younger [8.4 months; 95% confidence interval (CI) = 6.2-10.6] or elderly patients (8.2 months; 95% CI = 5.9-10.5, P = 0.667). The presence of extrahepatic disease at the time of RE was associated with a significantly worse median survival in both groups. CONCLUSION: Radioembolization appears to be as well tolerated and effective for the elderly as it is for younger patients with mCRC. Age alone should not be a discriminating factor for the use of radioembolization in the management of mCRC patients.


Assuntos
Neoplasias Colorretais/patologia , Embolização Terapêutica/métodos , Neoplasias Hepáticas/radioterapia , Neoplasias Hepáticas/secundário , Compostos Radiofarmacêuticos/uso terapêutico , Adulto , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Neoplasias Colorretais/mortalidade , Embolização Terapêutica/efeitos adversos , Embolização Terapêutica/mortalidade , Feminino , Humanos , Estimativa de Kaplan-Meier , Neoplasias Hepáticas/mortalidade , Masculino , Pessoa de Meia-Idade , Seleção de Pacientes , Modelos de Riscos Proporcionais , Compostos Radiofarmacêuticos/efeitos adversos , Estudos Retrospectivos , Terapia de Salvação , Fatores de Tempo , Resultado do Tratamento
12.
HPB (Oxford) ; 16(10): 924-8, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-24946109

RESUMO

BACKGROUND: The management of hepatic hemangiomas remains ill defined. This study sought to investigate the indications, surgical management and outcomes of patients who underwent a resection for hepatic hemangiomas. METHODS: A retrospective review from six major liver centres in the United States identifying patients who underwent surgery for hepatic hemangiomas was performed. Clinico-pathological, treatment and peri-operative data were evaluated. RESULTS: Of the 241patients who underwent a resection, the median age was 46 years [interquartile range (IQR): 39-53] and 85.5% were female. The median hemangioma size was 8.5 cm (IQR: 6-12.1). Surgery was performed for abdominal symptoms (85%), increasing hemangioma size (11.3%) and patient anxiety (3.7%). Life-threatening complications necessitating a hemangioma resection occurred in three patients (1.2%). Clavien Grade 3 or higher complications occurred in 14 patients (5.7%). The 30- and 90-day mortality was 0.8% (n = 2). Of patients with abdominal symptoms, 63.2% reported improvement of symptoms post-operatively. CONCLUSION: A hemangioma resection can be safely performed at high-volume institutions. The primary indication for surgery remains for intractable symptoms. The development of severe complications associated with non-operative management remains a rare event, ultimately challenging the necessity of additional surgical indications for a hemangioma resection.


Assuntos
Hemangioma/cirurgia , Hepatectomia , Neoplasias Hepáticas/cirurgia , Adulto , Feminino , Hemangioma/complicações , Hemangioma/mortalidade , Hemangioma/patologia , Hospitais com Alto Volume de Atendimentos , Humanos , Neoplasias Hepáticas/complicações , Neoplasias Hepáticas/mortalidade , Neoplasias Hepáticas/patologia , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/etiologia , Estudos Retrospectivos , Medição de Risco , Fatores de Risco , Fatores de Tempo , Resultado do Tratamento , Carga Tumoral , Estados Unidos
13.
J Vasc Interv Radiol ; 24(11): 1632-8, 2013 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-24160821

RESUMO

PURPOSE: To evaluate our experience with the use of yttrium-90 ((90)Y) radioembolization in maintaining potential candidacy and, in some instances, downstaging hepatocellular carcinoma (HCC) that does not meet Milan criteria for liver transplantation. MATERIALS AND METHODS: A retrospective review of 20 consecutive patients with HCC who were listed to receive a liver transplant and were treated with (90)Y radioembolization as a sole modality for locoregional "bridge" therapy was performed. Demographics, radiographic and pathologic response, survival, and recurrences were examined. RESULTS: Twenty-two (90)Y treatments were performed in 20 patients before transplantation. Median time from first treatment to transplantation was 3.5 months. HCC in 14 patients met the Milan criteria at the time of the first (90)Y treatment, and HCC in six did not. All cases that originally met the Milan criteria remained within the criteria before transplantation, and two of six patients whose disease did not meet the criteria (33%) had their disease successfully downstaged to meet the criteria. Overall, nine patients (45%) had complete or partial radiologic response to (90)Y radioembolization according to modified Response Evaluation Criteria In Solid Tumors. Complete necrosis of tumor with no evidence of viable tumor on pathologic examination was observed in five patients (36%) whose disease met the Milan criteria. CONCLUSIONS: Particularly in regions with long wait list times, (90)Y treatment is effective in maintaining tumor size in potential liver transplantation candidates with HCC. In addition, it can also be considered as a downstaging therapy in select patients before transplantation.


Assuntos
Carcinoma Hepatocelular/radioterapia , Embolização Terapêutica/métodos , Neoplasias Hepáticas/radioterapia , Transplante de Fígado , Terapia Neoadjuvante , Compostos Radiofarmacêuticos/uso terapêutico , Listas de Espera , Radioisótopos de Ítrio/uso terapêutico , Idoso , Carcinoma Hepatocelular/mortalidade , Carcinoma Hepatocelular/patologia , Carcinoma Hepatocelular/cirurgia , Embolização Terapêutica/efeitos adversos , Embolização Terapêutica/mortalidade , Feminino , Humanos , Estimativa de Kaplan-Meier , Neoplasias Hepáticas/mortalidade , Neoplasias Hepáticas/patologia , Neoplasias Hepáticas/cirurgia , Transplante de Fígado/efeitos adversos , Transplante de Fígado/mortalidade , Masculino , Pessoa de Meia-Idade , Terapia Neoadjuvante/efeitos adversos , Terapia Neoadjuvante/mortalidade , Estadiamento de Neoplasias , Compostos Radiofarmacêuticos/efeitos adversos , Radioterapia Adjuvante , Estudos Retrospectivos , Fatores de Tempo , Resultado do Tratamento , Listas de Espera/mortalidade , Radioisótopos de Ítrio/efeitos adversos
14.
Laryngoscope ; 2023 Nov 08.
Artigo em Inglês | MEDLINE | ID: mdl-37937733

RESUMO

INTRODUCTION: Coronavirus disease 2019 (COVID-19) affects the vascular system, subjecting patients to a hypercoagulable state. This is of particular concern for the success of microvascular free flap reconstruction. This study aims to report head and neck free flap complications in patients with COVID-19 during the perioperative period. We believe these patients are more likely to experience flap complications given the hypercoagulable state. METHODS: This is a multi-institutional retrospective case series of patients infected with COVID-19 during the perioperative period for head and neck free flap reconstruction from March 2020 to January 2022. RESULTS: Data was collected on 40 patients from 14 institutions. Twenty-one patients (52.5%) had a positive COVID-19 test within 10 days before surgery and 7 days after surgery. The remaining patients had a positive test earlier than 10 days before surgery. A positive test caused a delay in surgery for 16 patients (40.0%) with an average delay of 44.7 days (9-198 days). Two free flap complications (5.0%) occurred with no free flap deaths. Four patients (10.0%) had surgical complications and 10 patients had medical complications (25.0%). Five patients (12.5%) suffered from postoperative COVID-19 pneumonia. Three deaths were COVID-19-related and one from cancer recurrence during the study period. CONCLUSION: Despite the heightened risk of coagulopathy in COVID-19 patients, head and neck free flap reconstructions in patients with COVID-19 are not at higher risk for free flap complications. However, these patients are at increased risk of medical complications. LEVEL OF EVIDENCE: 4 Laryngoscope, 2023.

15.
J Neurosci ; 31(1): 339-45, 2011 Jan 05.
Artigo em Inglês | MEDLINE | ID: mdl-21209220

RESUMO

GABAergic neurons in the external capsule (EC) provide feedforward inhibition in the lateral amygdala (LA), but how EC affects synaptic transmission and plasticity in inputs from specific cortical areas remains unknown; this is because axonal fibers from different cortical areas are intermingled in the amygdala and cannot be activated selectively using conventional electrical stimulation. Here, we achieved selective activation of fibers from the temporal association cortex (TeA) or the anterior cingulate cortex (ACC) by using channelrhodopsin-2. Long-term potentiation (LTP) in the TeA-LA pathway, which runs through EC, was enabled by cutting connections between EC and LA or by blocking GABA(A) receptor-mediated transmission. In contrast, LTP in the ACC-LA pathway, which bypasses EC, was GABA(A) receptor independent. The EC transection shifted balance between inhibitory and excitatory responses in the TeA-LA pathway toward excitation, but had no effect on the ACC-LA pathway. Thus, EC provides pathway-specific suppression of amygdala plasticity.


Assuntos
Vias Aferentes/fisiologia , Tonsila do Cerebelo/fisiologia , Córtex Cerebral/fisiologia , Plasticidade Neuronal/fisiologia , 6-Ciano-7-nitroquinoxalina-2,3-diona/farmacologia , Vias Aferentes/efeitos dos fármacos , Tonsila do Cerebelo/citologia , Animais , Córtex Cerebral/citologia , Channelrhodopsins , Dependovirus/genética , Estimulação Elétrica/métodos , Antagonistas de Aminoácidos Excitatórios/farmacologia , Potenciais Pós-Sinápticos Excitadores/genética , Potenciais Pós-Sinápticos Excitadores/fisiologia , Antagonistas GABAérgicos/farmacologia , Regulação da Expressão Gênica/genética , Glutamato Descarboxilase/genética , Proteínas de Fluorescência Verde/genética , Técnicas In Vitro , Proteínas Luminescentes/genética , Masculino , Potenciais da Membrana/genética , Potenciais da Membrana/fisiologia , Camundongos , Camundongos Endogâmicos C57BL , Camundongos Transgênicos , Técnicas de Patch-Clamp/métodos , Estimulação Luminosa/métodos , Picrotoxina/farmacologia , Fatores de Tempo , Valina/análogos & derivados , Valina/farmacologia
16.
Artigo em Inglês | MEDLINE | ID: mdl-32466669

RESUMO

Objective: Cartilage-sparing techniques have continued to play a large role in modern otoplasty. Without invasion of the cartilage, the approach has been associated with less risk of skin necrosis, cartilage irregularities, hematoma, and infection. However, refinements are often needed to decrease the incidence of recurrence and suture extrusion. The objective of this systematic review is to assess the current evidence for cartilage-sparing otoplasty. Data Sources: PubMed and EMBASE databases. Study Selection: Search terms utilized were "cartilage" and "sparing" and "otoplasty." Exclusion criteria include book chapters, technical reviews, and non-English language articles. Data Extraction: On August 1, 2019, two independent authors performed a literature query with the aforementioned key words and databases. Data Synthesis: The initial search yielded 80 results, of which 20 final articles remained for final analysis. Sample sizes ranged from 17 to 565 patients, with 14 (70%) of the studies being case series with and without adjunctive techniques. Four (20%) studies compared outcomes between cartilage-invasive and cartilage-sparing techniques. Five (25%) studies were retrospective cohort studies and only one (5%) study was prospective in nature. However, according to the Oxford Centre for Evidence-Based Medicine scale, all of the studies were of low quality. Conclusions: Since the inception of cartilage-sparing otoplasty, various modifications of the approach have been described. Recent studies demonstrated superior outcomes compared with cartilage-invasive techniques; however, a personalized approach to each patient remains necessary and often may require a combination of both to achieve the most satisfying aesthetic result. Question: Is there a preferred method for otoplasty based on outcomes? Findings: Studies on otoplasty have low quality. Cartilage-sparing otoplasty outcomes seem to be superior to cartilage-scoring otoplasty. Meaning: Provide systematic review to surgeons who perform otoplasty with outcomes in order for a personalized approach to be implemented.

17.
JAMA Facial Plast Surg ; 21(3): 252-259, 2019 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-30629095

RESUMO

IMPORTANCE: Rhytidectomy, or face-lift surgery, is the mainstay of facial rejuvenation and is constantly evolving. There is continuous research to improve outcomes and minimize complications of this surgery. OBJECTIVE: To synthesize the updated techniques in rhytidectomy published during the past 5 years, including surgical technique, advances in anesthetic technique, minimally invasive techniques, and adjunctive procedures performed at the time of rhytidectomy. EVIDENCE REVIEW: On February 8, 2018, a literature search was performed of the PubMed and Cochrane databases using the search terms, face-lift or rhytidectomy and techniques. Articles published from February 8, 2013, to February 8, 2018, that related to techniques of facial rejuvenation in the lower one-third of the face by lifting and supporting tissue with 5 or more patients were included. Systematic reviews and primary literature were considered; narrative reviews, validation studies, and anatomic studies were eliminated. The initial search resulted in 604 articles after duplicates were removed. This was reduced to 84 articles after dual independent review screening. FINDINGS: Of the 84 articles included, 51 (61%) regarding techniques of face-lifting in the past 5 years pertained to soft-tissue techniques; 14 (17%) pertained to implants or adjunctive medications, such as tissue sealants; and 12 (14%) related to adjunctive techniques performed in addition to face-lifting, such as fat grafting, resurfacing, and liposuction. All studies found the techniques reported therein to be effective, with similar or fewer complications compared with the literature. However, according to the Oxford Centre for Evidence-Based Medicine criteria, the level of evidence of the studies was generally poor, because 45 of the studies (54%) were case series (level 4 of evidence). CONCLUSIONS AND RELEVANCE: Several new techniques have been explored for rhytidectomy or face-lift in the past 5 years, including soft-tissue techniques, introduction of implants or topical medications such as tissue sealants, and concomitant adjunctive techniques to enhance results. The overall quality of the evidence is poor, with most articles using case series with nonvalidated measures to evaluate outcomes. There is considerable room for improvement in the literature if additional studies using cohort designs and validated outcomes are performed to validate the quality of the techniques introduced during the past 5 years.


Assuntos
Técnicas Cosméticas/tendências , Ritidoplastia/tendências , Envelhecimento da Pele , Estética , Humanos , Rejuvenescimento
18.
Otolaryngol Head Neck Surg ; 160(2): 215-222, 2019 02.
Artigo em Inglês | MEDLINE | ID: mdl-30296901

RESUMO

OBJECTIVE: The aim of this systematic review is to compare the surgical outcomes of supraclavicular artery island flap (SCAIF) and free tissue transfer (FTT) in head and neck reconstruction. DATA SOURCES: PubMed, Web of Science, and EMBASE databases. REVIEW METHODS: Independent screening and data extraction were performed by 2 authors. Only studies that directly compared SCAIF and FTT were included. Data were pooled with random-effects meta-analysis to determine the standardized mean differences (SMDs), risk differences, and 95% confidence intervals (CIs). Heterogeneity was assessed using the I2 statistics. The Methodological Index for Non-Randomized Studies tool was used to evaluate extent of bias in studies. RESULTS: The initial query yielded 661 results, of which 4 comparative studies remained for final analysis. The pooled sample sizes for the SCAIF and FTT cohorts were 100 and 84, respectively. SCAIF was associated with reduction of operative time by a large effect size (SMD, 1.65; 95% confidence interval, 0.78-2.52). The harvested flap areas and perioperative complications, including rates of total flap loss, partial flap necrosis, and recipient/donor site dehiscences, were comparable between the 2 procedures with low to high heterogeneity among studies. CONCLUSION: SCAIF requires less operative time and has comparable short-term perioperative results to FTT. The findings of this study support the viability of SCAIF as an alternative to FTT and provide evidence for its inclusion in the reconstructive armamentarium of major head and neck ablation and trauma.


Assuntos
Retalhos de Tecido Biológico/transplante , Neoplasias de Cabeça e Pescoço/cirurgia , Retalho Perfurante/transplante , Procedimentos de Cirurgia Plástica/métodos , Cicatrização/fisiologia , Artérias/cirurgia , Clavícula/irrigação sanguínea , Clavícula/cirurgia , Feminino , Retalhos de Tecido Biológico/irrigação sanguínea , Rejeição de Enxerto , Sobrevivência de Enxerto , Neoplasias de Cabeça e Pescoço/patologia , Humanos , Masculino , Duração da Cirurgia , Prognóstico , Medição de Risco
19.
Laryngoscope ; 129(7): 1587-1596, 2019 07.
Artigo em Inglês | MEDLINE | ID: mdl-30325513

RESUMO

OBJECTIVE: The aim of this systematic review is to compare the perioperative outcomes of robotic versus conventional neck dissection in patients with head and neck malignancy. METHODS: An electronic search of PubMed, Web of Science, and EMBASE databases was conducted. We included studies with direct comparisons of robotic and open neck dissections and performed dual, independent data extraction for primary outcomes of nodal yield, recurrence rate, subjective cosmetic assessment, operative time, length of stay, and rates of perioperative complications. Data were pooled using random effects meta-analysis to determine the standardized mean difference (SMD), absolute risk difference (RD), and 95% confidence intervals (CI). RESULTS: Eleven comparative studies comprising 225 robotic and 430 open neck dissections met the final selection criteria. All studies had low to moderate risk of bias. Robotic surgery improved cosmesis (SMD 1.15, 95% CI 0.73 to 1.56) but also increased operative time (SMD 1.94, 95% CI 1.25 to 2.63). Total nodal yield, pathological nodal yield, recurrence rate, rates of perioperative complications, and length of stay were not significantly different between the two groups, and the 95% CIs suggested that false negative results were unlikely. The results remained consistent after stratification by pathology and robotic technique. CONCLUSION: Although robotic neck dissection may offer similar perioperative outcomes compared to conventional neck dissection, it requires significantly more operative time. Whereas cosmesis was found to be superior among the robotic cohort, this must be viewed cautiously given the nonvalidated measurement tool that was used and the inherent reporting bias associated with it. Laryngoscope, 129:1587-1596, 2019.


Assuntos
Neoplasias de Cabeça e Pescoço/cirurgia , Esvaziamento Cervical/métodos , Procedimentos Cirúrgicos Robóticos/métodos , Humanos
20.
Otolaryngol Head Neck Surg ; 160(2): 232-238, 2019 02.
Artigo em Inglês | MEDLINE | ID: mdl-30300093

RESUMO

OBJECTIVE: Several surgical interventions are offered to patients with Ménière's disease (MD) who fail medical management. Although outcomes have historically been reported according to American Academy of Otolaryngology-Head and Neck Surgery guidelines, patient-reported outcome measures (PROMs) are increasingly used to evaluate treatments. This study reviews PROMs used to assess surgical treatments for MD and compares the effect of each intervention based on PROM scores. DATA SOURCES: PubMed, EMBASE, CINAHL, and Web of Science. REVIEW METHODS: This is a systematic review and meta-analysis of English-language studies that reported PROMs for surgical treatments of MD. Two independent investigators assessed study eligibility, rated the quality using Methodological Index for Non-Randomized Studies (MINORS), and abstracted data for comparative analysis. A random-effects model was used for meta-analysis of pooled data. RESULTS: Of 148 unique studies identified, 11 satisfied inclusion criteria. The Ménière's Disease Outcome Questionnaire (MDOQ) was the most commonly used survey. Interventions included intratympanic gentamicin, vestibular nerve section, endolymphatic sac surgery, and labyrinthectomy. Pooled analysis of 8 studies that used the MDOQ instrument demonstrated statistically significant improvements in quality of life but did not identify a difference between destructive and nondestructive procedures. CONCLUSION: Although our review shows significant improvements in PROM scores for both destructive and nondestructive interventions, there was no significant difference noted between treatment types. We cannot draw conclusions regarding the comparative effectiveness of specific interventions, and the results do not account for placebo effects or the natural history of the disease. Further investigation with randomized controlled trials should be considered in future studies.


Assuntos
Doença de Meniere/diagnóstico , Doença de Meniere/cirurgia , Medidas de Resultados Relatados pelo Paciente , Qualidade de Vida , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Ensaios Clínicos Controlados Aleatórios como Assunto , Índice de Gravidade de Doença
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