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1.
Lasers Surg Med ; 44(3): 211-7, 2012 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22362380

RESUMO

BACKGROUND: Low-level laser therapy (LLLT) is a noninvasive treatment for a wide-assortment of medical ailments. A recent application is for noninvasive body slimming. A Level 1 clinical study was completed and recorded a significant reduction in circumferential measurements across waist, hips, and thighs compared to placebo subjects. Questions remain unanswered to whether the result observed was based upon simple fluid redistribution. The purpose of this retrospective study was to evaluate the efficacy of LLLT for noninvasive body slimming and determine if the loss was attributable to fluid or fat relocation. METHODS: Data from 689 participants were obtained to evaluate the circumferential reduction demonstrated across the treatment site of the waist, hips, and thighs as well as nontreated systemic regions. Patient data were not pre-selected; all reports provided by clinics using LLLT for body contouring were used to evaluate the efficacy of this treatment. Participants received a total of six LLLT treatments across 2-weeks having baseline and post-procedure circumferential measurements recorded. Measurement sites included waist, hips, thighs, arms, knees, neck, and chest. RESULTS: The mean circumferential reduction reported for the waist, hips, and thighs 1 week after the treatment regimen was 3.27 in. (P < 0.0001). Furthermore, participants demonstrated an overall mean reduction of 5.17 in. across all measurement points 5.17 in. (P < 0.0001). Each anatomical region measured exhibited a significant circumferential reduction. CONCLUSION: These data reveal that the circumferential reduction exhibited following LLLT is not attributable to fluid or fat relocation as all measurement points, including nontreated regions, reported an inch loss.


Assuntos
Modificação Corporal não Terapêutica , Terapia com Luz de Baixa Intensidade , Gordura Subcutânea/efeitos da radiação , Abdome/anatomia & histologia , Adulto , Pesos e Medidas Corporais , Extremidades/anatomia & histologia , Feminino , Quadril/anatomia & histologia , Humanos , Masculino , Pessoa de Meia-Idade , Coxa da Perna/anatomia & histologia
2.
Eur J Radiol ; 81(3): e344-51, 2012 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22119556

RESUMO

BACKGROUND: Although there is no clear consensus about the process of screening for developmental dysplasia of the hip (DDH), there are six common risk factors associated with DDH in patients less than 6 months of age (breech presentation, sex, family history, first-born, side of hip, and mode of delivery). METHODS: A meta-analysis of published studies was conducted to identify the relative risk ratio of the six commonly known risk factors. A total of 31 primary studies consisting of 20,196 DDH patients met the following inclusion criteria: (1) contained empirical data on at least one common risk factor, (2) were peer-reviewed from an English language scientific journal, (3) included patients less or equal to 6 months of age, and (4) identified method of diagnosis (e.g., ultrasound, radiographs or clinical examination). RESULTS: Fixed effect and random effects models with 95% confidence intervals were calculated for each of the six risk factors. Reported relative risk ratio (RR) for each factor in newborns was: breech presentation 3.75 (95% CI: 2.25-6.24), females 2.54 (95% CI: 2.11-3.05), left hip side 1.54 (95% CI: 1.25-1.90), first born 1.44 (95% CI: 1.12-1.86), and family history 1.39 (95% CI: 1.23-1.57). A non-significant RR value of 1.22 (95% CI: 0.46-3.23) was found for mode of delivery. CONCLUSION: Results suggest that ultrasound and radiology screening methods be used to confirm DDH in newborns that present with one or a combination of the following common risk factors: breech presentation, female, left hip affected, first born and family history of DDH.


Assuntos
Luxação Congênita de Quadril/diagnóstico , Luxação Congênita de Quadril/etiologia , Triagem Neonatal/métodos , Ordem de Nascimento , Apresentação Pélvica , Parto Obstétrico , Feminino , Luxação Congênita de Quadril/epidemiologia , Luxação Congênita de Quadril/genética , Humanos , Lactente , Recém-Nascido , Masculino , Gravidez , Prevalência , Fatores de Risco , Fatores Sexuais
3.
Pediatr Hematol Oncol ; 27(3): 212-27, 2010 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-20367265

RESUMO

Interference with the molecular mechanisms that generate tumor supportive niches in the bone microenvironment is a rational approach to inhibit the growth of hematological malignancies. However, the advancement of knowledge in this area has been slowed down by the lack of in vitro models to facilitate the screening of potential candidate agents. The rare cases of acute lymphoblastic leukemia (ALL) in children presenting with extensive bone involvement may represent an exaggerated form of some aspects of the normal tumor-bone interactions. Thus, these cases can provide insight into processes that are otherwise challenging to uncover. The authors describe the case of a 6-year-old child who presented with severe osteopenia that resolved at the time of leukemic remission. Compared to control sera, serum taken at disease presentation contained increased levels of a group of osteolytic cytokines and was effective in activating preosteoclast cells in culture. Based on these findings, the authors describe an experimental model to identify agents that would interfere with leukemia mediated osteolytic process.


Assuntos
Doenças Ósseas Metabólicas/etiologia , Leucemia-Linfoma Linfoblástico de Células Precursoras/complicações , Pré-Escolar , Citocinas/sangue , Receptores ErbB/antagonistas & inibidores , Humanos , Masculino , Osteoclastos/fisiologia , Leucemia-Linfoma Linfoblástico de Células Precursoras/sangue , Leucemia-Linfoma Linfoblástico de Células Precursoras/tratamento farmacológico
4.
Can Assoc Radiol J ; 60(2): 79-87, 2009 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-19433038

RESUMO

OBJECTIVE: To determine the morphology and hemodynamic characteristics of the arterial vessels of the proximal femur according to specific anatomic regions in asymptomatic neonates in 2 pediatric-based health care institutions. METHODS: Forty-three neonates (29 female, 14 male; age range, 2 d-3 mo; median age, 3 d) were enrolled in the study. Thirty-two (37%) of 86 hips were classified as Graf type IIA joints (mean alpha angle, 56.0 degrees +/- 2.7 degrees ), and 54 (63%) were classified as type I joints (mean alpha angle, 65.0 degrees +/- 4.6 degrees ). RESULTS: Colour and spectral Doppler imaging identified vessels running along the acetabular labrum, epiphyseal vessels, and femoral neck. We showed 4 different patterns of vascularity of the hips: radial, parallel, mixed radial-parallel, and indeterminate, however, they were not related to the hip maturity (P = .3, coronal plane; P = .62, transverse plane) or to the amount of colour pixels identified in each region (P = .35). The mean number of pixels in the ligamentum teres region was significantly higher than that in other regions of interest (P = .03). Except for the acetabular labrum arteries, Doppler spectrum waveforms of proximal femur arteries presented with low resistivity. There was a tendency towards females' acetabular arteries presenting with lower peak systolic velocities than males' acetabular arteries (P = .06). CONCLUSIONS: Colour Doppler spectrum waveforms and intensity of vascularity in normal neonatal hips differ according to the anatomic region under evaluation. This observation deserves further investigation on its role on the physiopathogenesis of neonatal hip disorders.


Assuntos
Ecocardiografia Doppler em Cores/métodos , Ecocardiografia Doppler em Cores/estatística & dados numéricos , Articulação do Quadril/anatomia & histologia , Articulação do Quadril/diagnóstico por imagem , Feminino , Fêmur/anatomia & histologia , Fêmur/irrigação sanguínea , Fêmur/diagnóstico por imagem , Articulação do Quadril/irrigação sanguínea , Humanos , Processamento de Imagem Assistida por Computador/métodos , Lactente , Recém-Nascido , Masculino , Estudos Prospectivos , Valores de Referência
5.
Clinics (Sao Paulo) ; 64(1): 41-4, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-19142550

RESUMO

BACKGROUND: Beckwith-Wiedemann syndrome is a disorder of somatic overgrowth. Evidence of kidney overgrowth is a diagnostic criterion that may be used to help identify those patients who are at the greatest risk of developing Wilms tumors. In such subjects, kidney size is typically larger than that of age-matched normal controls. OBJECTIVE: The purpose of our study was to generate a nomogram that could be used to measure renal dimensions in children with Beckwith-Wiedemann syndrome in a clinical setting. MATERIALS & METHODS: All of the Beckwith-Wiedemann syndrome patients followed at our institution from 1996 to 2004 were eligible for inclusion in our study. Renal length was measured with a curvilinear transducer and with the patient supine. Renal lengths were measured for both kidneys using real-time ultrasound for all patients. Their data were compared with those of age-matched controls reported in the 1984 study by Rosenbaum et al. RESULTS: Ninety-six children with Beckwith-Wiedemann syndrome were followed from 1996 to 2004. Forty-three of these patients met our criteria for inclusion in the study: 28 girls (65%) and 15 boys (35%). We identified a linear relationship between kidney length and patient age. No statistically significant differences in renal length were found between boys and girls (p=0.2153) or between the kidneys on either side of the body (p=0.9613). CONCLUSION: Our study provides a practical, simple renal growth chart that offers a reasonable, sensitive method for evaluating kidney size in children with Beckwith-Wiedemann syndrome.


Assuntos
Síndrome de Beckwith-Wiedemann/diagnóstico por imagem , Nefropatias/diagnóstico por imagem , Rim/crescimento & desenvolvimento , Nomogramas , Adolescente , Síndrome de Beckwith-Wiedemann/complicações , Estudos de Casos e Controles , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Rim/anatomia & histologia , Rim/diagnóstico por imagem , Nefropatias/etiologia , Masculino , Tamanho do Órgão , Valor Preditivo dos Testes , Estatísticas não Paramétricas , Ultrassonografia
6.
Clinics ; 64(1): 41-44, 2009. graf, tab
Artigo em Inglês | LILACS | ID: lil-501886

RESUMO

BACKGROUND: Beckwith-Wiedemann syndrome is a disorder of somatic overgrowth. Evidence of kidney overgrowth is a diagnostic criterion that may be used to help identify those patients who are at the greatest risk of developing Wilms tumors. In such subjects, kidney size is typically larger than that of age-matched normal controls. OBJECTIVE: The purpose of our study was to generate a nomogram that could be used to measure renal dimensions in children with Beckwith-Wiedemann syndrome in a clinical setting. MATERIALS & METHODS: All of the Beckwith-Wiedemann syndrome patients followed at our institution from 1996 to 2004 were eligible for inclusion in our study. Renal length was measured with a curvilinear transducer and with the patient supine. Renal lengths were measured for both kidneys using real-time ultrasound for all patients. Their data were compared with those of age-matched controls reported in the 1984 study by Rosenbaum et al. RESULTS: Ninety-six children with Beckwith-Wiedemann syndrome were followed from 1996 to 2004. Forty-three of these patients met our criteria for inclusion in the study: 28 girls (65 percent) and 15 boys (35 percent). We identified a linear relationship between kidney length and patient age. No statistically significant differences in renal length were found between boys and girls (p=0.2153) or between the kidneys on either side of the body (p=0.9613). CONCLUSION: Our study provides a practical, simple renal growth chart that offers a reasonable, sensitive method for evaluating kidney size in children with Beckwith-Wiedemann syndrome.


Assuntos
Adolescente , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Masculino , Síndrome de Beckwith-Wiedemann , Nefropatias , Rim/crescimento & desenvolvimento , Nomogramas , Síndrome de Beckwith-Wiedemann/complicações , Estudos de Casos e Controles , Nefropatias/etiologia , Rim/anatomia & histologia , Rim , Tamanho do Órgão , Valor Preditivo dos Testes , Estatísticas não Paramétricas
9.
Pediatr Radiol ; 36(10): 1105-7, 2006 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-16819598

RESUMO

Liver involvement in Langerhans cell histiocytosis (LCH) typically presents with hepatomegaly and other signs of liver dysfunction. We present an 11-month-old child having only minimally elevated liver enzymes as an indication of liver involvement. Using sonography as the initial diagnostic tool followed by MRI, LCH of the liver was revealed. A review of sonographic, CT, MRI and MR cholangiopancreatography findings in liver LCH is presented. We recommend that physicians consider sonography and MRI screening for liver involvement in patients with newly diagnosed LCH, as periportal involvement may be present with little or no liver function abnormality present, as in this patient.


Assuntos
Diagnóstico por Imagem , Histiocitose de Células de Langerhans/diagnóstico , Hepatopatias/diagnóstico , Diagnóstico Diferencial , Histiocitose de Células de Langerhans/tratamento farmacológico , Humanos , Lactente , Hepatopatias/tratamento farmacológico , Testes de Função Hepática , Masculino
10.
Clin Plast Surg ; 33(1): 117-27, vii, 2006 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-16427980

RESUMO

Low-level laser-assisted liposuction (LLLL), known as the Neira 4 L technique, is an excellent adjuvant tool for the surgeon practicing liposculpture. A low-level laser is used to create a transitory pore in the cell membrane of the adipocyte to move fat from inside the cell to the interstitial space outside without killing the cell. LLLL has been performed successfully in in-vitro and human adipose tissue cultures. It protects the patient from the surgical trauma of liposuction by protecting and preparing tissues for the surgical trauma; modulating the inflammatory response to prevent short and long-term side effects of surgery; and improving the quality and quantity of the healing process by accelerating recovery time, modulating secondary cicatrization, and preventing postoperative neuralgias.


Assuntos
Terapia a Laser/instrumentação , Lipectomia/instrumentação , Lipectomia/métodos , Desenho de Equipamento , Humanos
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