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1.
Plast Reconstr Surg ; 145(6): 1389-1401, 2020 06.
Artigo em Inglês | MEDLINE | ID: mdl-32195860

RESUMO

BACKGROUND: Dorsal hump reduction during open rhinoplasty disrupts the continuity between the upper lateral cartilages and the dorsal septum. Options to reconstitute the midvault include primary closure of the upper lateral cartilages to the dorsal aspect of the septum, placement of spreader grafts, and creation of spreader flaps. The authors sought to clarify from highly experienced rhinoplasty surgeons their decision-making rationale for midvault reconstruction, distilling down the group consensus into algorithmic guidelines. METHODS: A panel of internationally recognized rhinoplasty surgeons participated in a two-part organized communication method. An introductory summit consisted of open discussions on various topics in midvault reconstruction. The summit transcription was analyzed by thematic content analysis to develop a survey encompassing clinical scenarios for primary rhinoplasty, which was then individually administered to each panelist. Data gathered from both parts were used to generate technical guidelines and a decision-making algorithm. RESULTS: The panelists identified the following anatomical features as pertinent to their selection of midvault reconstruction method: size of the dorsal hump reduction, width of the midvault relative to the upper vault, presence of dorsal angulation, and presence of nasal obstructive symptoms. Individual panelist preference was gathered from the 24-scenario survey divided into either cosmetic or functional rhinoplasty cases. CONCLUSIONS: Management of the midvault after dorsal hump reduction is important to establish proper aesthetic relationships and to provide functional integrity of the internal valve. Our authors present an algorithmic approach to decision-making based on the systematic analysis practiced by senior rhinoplasty surgeons.


Assuntos
Tomada de Decisão Clínica/métodos , Estética , Guias de Prática Clínica como Assunto , Rinoplastia/normas , Consenso , Humanos , Cartilagens Nasais/anatomia & histologia , Cartilagens Nasais/cirurgia , Septo Nasal/anatomia & histologia , Septo Nasal/cirurgia , Rinoplastia/métodos , Rinoplastia/estatística & dados numéricos , Cirurgiões/normas , Cirurgiões/estatística & dados numéricos , Retalhos Cirúrgicos/transplante , Inquéritos e Questionários/estatística & dados numéricos
2.
Sci Rep ; 9(1): 8193, 2019 06 03.
Artigo em Inglês | MEDLINE | ID: mdl-31160618

RESUMO

Arterial calcification predicts accelerated restenosis after angioplasty and stenting. We studied the effects of calcification on neointimal hyperplasia after balloon injury in the rat carotid. Arterial calcification was induced by subcutaneous injection of vitamin D3 or by adventitial application of calcium chloride. After balloon catheter injury, neointimal hyperplasia was significantly increased in rats with medial calcification compared with controls. Neointimal cell proliferation in calcified arteries as assessed by proliferating cell nuclear antigen (PCNA) staining was also higher. In calcified arteries, bone morphogenetic protein 2 (BMP-2)levels were increased at the time of injury suggesting a possible explanation for the altered responses. In vascular smooth muscle cells (SMCs) grown under calcifying conditions , stimulation with BMP-2 significantly increased cell proliferation, however, this did not occur in those grown under non-calcifying conditions. These data suggest that neointimal hyperplasia is accelerated in calcified arteries and that this may be due in part to increased BMP-2 expression in medial SMCs. Treatments aimed at inhibiting restenosis in calcified arteries may differ from those that work in uncalcified vessels.


Assuntos
Angioplastia com Balão/efeitos adversos , Calcinose/patologia , Artérias Carótidas/patologia , Neointima/patologia , Angioplastia com Balão/métodos , Animais , Proteína Morfogenética Óssea 2/metabolismo , Cloreto de Cálcio/química , Lesões das Artérias Carótidas/patologia , Proliferação de Células , Reestenose Coronária , Modelos Animais de Doenças , Hiperplasia/patologia , Masculino , Músculo Liso Vascular/efeitos dos fármacos , Miócitos de Músculo Liso/efeitos dos fármacos , Antígeno Nuclear de Célula em Proliferação/metabolismo , Ratos , Ratos Sprague-Dawley , Túnica Íntima/patologia
3.
J Vasc Surg ; 67(2): 507-513, 2018 02.
Artigo em Inglês | MEDLINE | ID: mdl-28870682

RESUMO

OBJECTIVE: Arterial calcification is associated with an increased risk of limb events, including amputation. The association between calcification in lower extremity arteries and the severity of ischemia, however, has not been assessed. We thus sought to determine whether the extent of peripheral artery calcification (PAC) was correlated with Rutherford chronic ischemia categories and hypothesized that it could independently contribute to worsening limb status. METHODS: We retrospectively reviewed all patients presenting with symptomatic peripheral artery disease who underwent evaluation by contrast and noncontrast computed tomography scan of the lower extremities as part of their assessment. Demographic and cardiovascular risk factors were recorded. Rutherford ischemia categories were determined based on history, physical examination, and noninvasive testing. PAC scores and the extent of occlusive disease were measured on noncontrast and contrast computed tomography scans, respectively. Spearman's correlation testing was used to assess the relationship between occlusive disease and calcification scores. Multivariable logistic regression was used to identify factors associated with increasing Rutherford ischemia categories. RESULTS: There were 116 patients identified, including 75 with claudication and 41 with critical limb ischemia. In univariate regression, there was a significant association between increasing Rutherford ischemia category and age, diabetes duration, hypertension, the occlusion score, and PAC. There was a moderate correlation between the extent of occlusive disease and PAC scores (Spearman's R = 0.6). In multivariable analysis, only tobacco use (odds ratio [OR], 3.1; 95% confidence interval [CI], 1.2-8.3), diabetes duration (OR, 1.04; 95% CI, 1.01-1.08), and the calcification score (OR, 2.1; 95% CI, 1.4-3.2) maintained an association with increasing ischemia categories after adjusting for relevant cardiovascular risk factors and the extent of occlusive disease. CONCLUSIONS: PAC is independently associated with increased ischemia categories in patients with peripheral artery disease. Further research aimed at understanding the relationship between arterial calcification and worsening limb ischemia is warranted.


Assuntos
Claudicação Intermitente/complicações , Isquemia/complicações , Doença Arterial Periférica/complicações , Calcificação Vascular/complicações , Idoso , Doença Crônica , Angiografia por Tomografia Computadorizada , Estudos Transversais , Progressão da Doença , Feminino , Humanos , Claudicação Intermitente/diagnóstico por imagem , Isquemia/diagnóstico por imagem , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Razão de Chances , Doença Arterial Periférica/diagnóstico por imagem , Valor Preditivo dos Testes , Prognóstico , Sistema de Registros , Estudos Retrospectivos , Fatores de Risco , Índice de Gravidade de Doença , Fumar/efeitos adversos , Calcificação Vascular/diagnóstico por imagem
4.
Pediatr Surg Int ; 32(7): 649-55, 2016 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-27161128

RESUMO

PURPOSE: Our objective was to perform a meta-analysis on RCTs that compared outcomes in children with perforated appendicitis (PA) who underwent either early appendectomy (EA) or interval appendectomy (IA). We also sought to determine if the presence of an intra-abdominal abscess (IAA) at admission impacted treatment strategy and outcomes. METHODS: We identified two RCTs comparing EA versus IA in children with PA. A meta-analysis was performed using regression models and the overall adverse event rate was analyzed. The treatment effect variation depending on the presence of IAA at admission was also evaluated. RESULTS: EA significantly reduced the odds of an adverse event (OR 0.28, 95 % CI 0.1-0.77) and an unplanned readmission (OR 0.08, 95 % CI 0.01-0.67), as well as the total charges (79 % of the IA, 95 % CI 63-100) for those who did not have an IAA at admission. In children with an IAA, there was no difference between EA and IA. However, heterogeneity of treatment effect was present regarding IAA at presentation. CONCLUSIONS: While EA appears to improve outcomes in patients without an abscess, the published data support no significant difference in outcomes between EA and IA in patients with an abscess.


Assuntos
Apendicectomia/métodos , Apendicite/cirurgia , Prontuários Médicos , Ensaios Clínicos Controlados Aleatórios como Assunto , Criança , Humanos , Ruptura Espontânea , Fatores de Tempo
5.
Am Surg ; 81(11): 1177-81, 2015 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-26672590

RESUMO

Wrist, hand, and finger trauma are the most common nonlethal injuries presenting to emergency departments. In Tennessee, lack of available hand care, particularly the need for emergency hand surgery, could be detrimental to patient outcomes. This is a retrospective outcomes study of patients requiring revisional hand surgeries. Patients were identified and stratified by distance to Vanderbilt University Medical Center (VUMC) to determine if patient complications increase with distance from VUMC. As distance of patient county of residence from VUMC increased, per cent of patients without a complication decreased (P < 0.0001). Counties without 24/7 comprehensive hand call also showed a distance difference in complication rates. Per capita income and mean household income showed no effect on complications. Distance from treating facility is correlated with patient outcomes and need for revisional surgery. Limitations in care availability in Tennessee are not specific to hand surgery. If the trend toward poorer outcomes as a result of limited local care availability extends to other specialties, this could have implications regarding health-care realignment. Specifically for patients with complex injuries or conditions that will be referred to centralized flagship hospitals, increases in patient travel may limit positive outcomes.


Assuntos
Traumatismos da Mão/cirurgia , Acessibilidade aos Serviços de Saúde/tendências , Complicações Pós-Operatórias/cirurgia , Serviços Médicos de Emergência/provisão & distribuição , Humanos , Renda , Reoperação , Características de Residência , Estudos Retrospectivos , Tennessee
6.
Vasc Med ; 20(4): 326-31, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-25907899

RESUMO

The cardiovascular risk factors that contribute to coronary calcification have been extensively studied while those related to tibial artery calcium are less well defined. We sought to determine the associations between cardiovascular risk factors and tibial artery calcification in a cohort of patients with and without significant peripheral atherosclerosis. A total of 222 patients without end-stage renal disease were identified in a prospectively maintained database containing tibial artery calcification (TAC) scores, and demographic, cardiovascular, and biochemical risk factor information. Patients with prevalent tibial artery calcification were more likely to be older, male, and have a history positive for hypertension, hyperlipidemia, diabetes, and tobacco use. Patients with an abnormal ankle-brachial index (ABI) or symptoms of peripheral artery disease (PAD) were also more likely to have higher calcium values. In analyses using multivariable logistic regression, age, gender, diabetes, and tobacco use maintained their association with prevalent tibial calcification while hypertension, hyperlipidemia and body mass index did not. These associations remained when PAD was added to the model. After adjusting for relevant cardiovascular risk factors, we found that only abnormal ABI, current PAD symptoms, and lower serum calcium values were associated with the presence of tibial artery calcification. In conclusion, in patients without end-stage renal disease, tibial artery calcification has risk factors that are similar but not identical to those for coronary artery calcification and peripheral atherosclerosis.


Assuntos
Doença Arterial Periférica/epidemiologia , Artérias da Tíbia , Calcificação Vascular/epidemiologia , Fatores Etários , Idoso , Índice Tornozelo-Braço , Biomarcadores/sangue , Cálcio/sangue , Comorbidade , Estudos Transversais , Bases de Dados Factuais , Feminino , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Razão de Chances , Doença Arterial Periférica/diagnóstico , Prevalência , Estudos Prospectivos , Medição de Risco , Fatores de Risco , Fatores Sexuais , Fumar/efeitos adversos , Fumar/epidemiologia , Tennessee/epidemiologia , Artérias da Tíbia/diagnóstico por imagem , Artérias da Tíbia/metabolismo , Tomografia Computadorizada por Raios X , Calcificação Vascular/sangue , Calcificação Vascular/diagnóstico
7.
J Pediatr Surg ; 48(4): e9-e12, 2013 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-23583164

RESUMO

Duplication of the appendix is a rare condition and is usually an incidental finding during an appendectomy. There have been several cases reported in the literature. Although not usually associated with any discrete pathology, the presenting symptoms can vary but are usually associated with acute appendicitis. We present two cases of appendiceal duplication in young children, one presenting with the usual signs and symptoms of acute appendicitis and the other with intussusception. The purpose of this report is to present two distinct modes of presentation of this rare condition so that pediatric general surgeons are aware of this as a possible entity.


Assuntos
Apêndice/anormalidades , Apêndice/cirurgia , Neoplasias do Apêndice/diagnóstico , Criança , Diagnóstico Diferencial , Feminino , Humanos , Intussuscepção/diagnóstico , Masculino , Tomografia Computadorizada por Raios X
8.
J Pediatr Surg ; 47(10): 1930-3, 2012 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-23084210

RESUMO

We describe a case of a 15-year-old girl who presented with 2 painful masses in her right breast. Ultrasound confirmed the presence of 2 lesions, both of which appeared noncharacteristic for fibroadenomas. Both lesions were surgically resected. One was found to be a fibroadenoma and the other a granular cell tumor, both benign upon further histologic evaluation. Breast masses are rare in the pediatric population. The finding of a concurrent fibroadenoma and granular cell tumor is unique and has not been previously reported. Granular cell tumors of the breast are relatively uncommon. Often, they are mistaken for a breast malignancy. The concerning clinical and radiographic findings in this patient warranted operative excision.


Assuntos
Neoplasias da Mama/patologia , Fibroadenoma/patologia , Tumor de Células Granulares/patologia , Neoplasias Primárias Múltiplas/patologia , Adolescente , Feminino , Humanos
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