Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 24
Filtrar
1.
Eur Rev Med Pharmacol Sci ; 27(20): 9978-9986, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37916368

RESUMO

OBJECTIVE: This study aims to investigate potential differences in the presence of Transforming Growth Factor-Beta 1 (TGF-ß1) between the vein walls of patients with varicocele and those of healthy individuals. PATIENTS AND METHODS: The study comprised a total of 40 participants, divided into two groups. The control group (Group 1) consisted of 20 patients who underwent coronary bypass surgery, while the varicocele group (Group 2) included 20 patients scheduled for varicocelectomy. The cytoplasmic and nuclear staining patterns of TGF-ß1 immunohistochemistry were assessed in tissue samples under light microscopy, identifying any differences in TGF-ß1 presence between varicocele patient vein walls and normal (saphenous) veins. RESULTS: The varicocele group demonstrated lower nuclear and cytoplasmic TGF-ß1 staining rates compared to the control group. After controlling for the independent factor of age, significantly lower nuclear and cytoplasmic staining was still observed in the varicocele group. CONCLUSIONS: This study is the first of its kind to compare TGF-ß1 staining in the vein walls of varicocele patients and healthy individuals. Previous studies focusing on varicose veins reported elevated TGF-ß1 expression. Contrarily, our study observed lower TGF-ß1 expression in varicocele patient veins, marking a unique contribution to the field.


Assuntos
Varicocele , Varizes , Humanos , Masculino , Veia Safena , Fator de Crescimento Transformador beta/metabolismo , Fator de Crescimento Transformador beta1/metabolismo , Varicocele/cirurgia , Varicocele/metabolismo , Varizes/cirurgia , Procedimentos Cirúrgicos Vasculares
2.
Arch Dermatol Res ; 312(3): 187-196, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-31722038

RESUMO

Hidradenitis Suppurativa (HS) is a chronic, inflammatory, and relapsing skin disease. Pathogenesis of the disease is not well understood, but many studies revealed the potential role of cytokines and interleukins. IL-36 expression was increased in tissue samples of HS patients with conflicting result regarding serum levels. To investigate serum IL-36 levels in HS patients and evaluate their relation to disease characteristics, 44 patients diagnosed with HS and 44 age and sex-matched healthy controls were included in the study. Enzyme-linked immunosorbent assay (ELISA) was used to measure serum IL-36 concentrations. Serum levels of IL-36α, IL-36ß, and IL-36γ were significantly elevated in HS patients compared to healthy controls (all three p < 0.001). IL-36α, IL-36ß, and IL-36γ levels were significantly higher in current smokers compared to non-smokers and positively correlated with number of packs/year (p = 0.002, r = 0.402; p = 0.042, r = 0.242 and p = 0.001, r = 0.391, respectively). IL-36α, IL-36ß, and IL-36γ levels were also elevated in obese patients and patients with metabolic syndrome (p = 0.007, < 0.001, 0.038, 0.004, 0.006, and 0.048, respectively). After stratified and restricted analyses for smoking, obesity, and metabolic syndrome IL-36α, IL-36ß, and IL-36γ increased the risk of HS 11.0, 1.79, and 4.5 time, respectively (95% CI 1.7-71.28, p < 0.001; 95% CI 1.04-3.06, p = 0.005 and, 95% CI 1.007-20.106, p = 0.040, respectively). Elevated serum IL-36 levels may contribute to pathogenesis of HS and may be a candidate for future biological treatment of the disease.


Assuntos
Hidradenite Supurativa/imunologia , Interleucina-1/sangue , Síndrome Metabólica/imunologia , Obesidade/imunologia , Adulto , Fumar Cigarros/epidemiologia , Feminino , Hidradenite Supurativa/epidemiologia , Humanos , Masculino , Síndrome Metabólica/epidemiologia , Pessoa de Meia-Idade , Obesidade/epidemiologia , Turquia/epidemiologia , Adulto Jovem
3.
Bratisl Lek Listy ; 120(1): 65-69, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30685995

RESUMO

OBJECTIVES: To examine the relationship between disease activity and vaspin, neutrophil gelatinase-associated lipocalin (NGAL) and apolipoprotein levels in patients with psoriatic arthritis (PsA). BACKGROUND: Psoriatic arthritis (PsA) is a chronic inflammatory arthritis, which is related with psoriasis. Adipokines are the mediators which play a role in metabolic homeostasis and inflammatory conditions. METHODS: The levels of vaspin, NGAL, apolipoproteins and their correlations with disease activity were compared in 50 psoriatic arthritis patients and 36 healthy controls. RESULTS: The levels of vaspin, NGAL and apolipoprotein B/A1 ratio were significantly higher in the patient group (p 0.05). CONCLUSION: This is the first study to have compared vaspin and NGAL levels in patients with PsA. Vaspin and NGAL can be used as a biomarker in PsA. Vaspin, NGAL and dyslipoproteinemia are not correlated with disease activity (Tab. 3, Ref. 63).


Assuntos
Artrite Psoriásica , Lipocalina-2 , Serpinas , Proteínas de Fase Aguda , Apolipoproteínas/sangue , Artrite Psoriásica/sangue , Artrite Psoriásica/diagnóstico , Biomarcadores/sangue , Humanos , Lipocalina-2/sangue , Lipocalinas , Proteínas Proto-Oncogênicas , Serpinas/sangue
4.
Transplant Proc ; 50(10): 3445-3448, 2018 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-30577219

RESUMO

INTRODUCTION: Renal transplantation is undoubtedly considered the best renal replacement therapy. Graft nephrectomy can be performed in patients with renal transplantation because of complications associated with the failed graft. We aimed to retrospectively investigate the characteristics of patients who underwent graft nephrectomy. MATERIALS AND METHODS: Between January 2000 and November 2013, the records of 757 patients who had renal transplantation in Ege University Faculty of Medicine Hospital Nephrology-Transplantation outpatient clinic were examined. Sixty-four patients who underwent graft nephrectomy were included in the study. Patients were divided into 2 groups according to the timing of graft nephrectomy. The group of 30 patients who underwent graft nephrectomy in the first 56 days after the renal transplantation was referred to as the "early group" and the group of 34 patients who underwent graft nephrectomy after 56 days was referred to as "late group." RESULTS: In our study, we found the body mass index to be significantly higher in those with early graft loss (P = .02). We found that there was a difference between the groups in terms of sex (P = .012). When the mortality and morbidity rates after graft nephrectomy were examined, mortality was observed in 3 of the 64 patients in the study and morbidity in 1 patient. CONCLUSION: According to our study, the body mass indices and ages of the subjects who need early graft nephrectomy are higher. However, male sex was significantly more prevalent in patients who underwent graft nephrectomy in the late period compared with the early period.


Assuntos
Rejeição de Enxerto/cirurgia , Transplante de Rim/efeitos adversos , Nefrectomia , Adulto , Fatores Etários , Índice de Massa Corporal , Feminino , Sobrevivência de Enxerto , Humanos , Estimativa de Kaplan-Meier , Transplante de Rim/mortalidade , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Risco , Fatores Sexuais , Adulto Jovem
5.
Bratisl Lek Listy ; 119(7): 421-424, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30160130

RESUMO

OBJECTIVE: The structural and compositional changes in the myocardium seem to have a major role in the development of heart failure (HF).Imbalance between production and degradation in extracellular collagen results in increase of collagen synthesis biomarkers in the circulation as the carboxy-terminal propeptide of type I procollagen (PIP). Here we aimed to determine role of PIP in the diagnosis of chronic HF. MATERIAL AND METHODS: 87 patients with HF group and 80 healthy subjects were enrolled into the study. Echocardiographic examination was performed.At the beginning of the study, serum B type natriuretic peptide (BNP), PIP, high sensitive C-reactive protein (hs-CRP) were measured . The subjects were followed for one year then after. RESULTS: Average PIP value of HF group was significantly higher than that of the control group (p < 0.001). Both hs-CRP and BNP values were well correlated to PIP values (p < 0.001). In the HF group, PIP value of patients who died at the end of one year was similar to that of patients who survived at the end of first year. CONCLUSION: PIP may not mirror acute events in follow-up of chronic heart failure but it is a very beneficial biomarker in diagnosis of low-LVEF heart failure with high sensitivity and specificity (Tab. 2, Fig. 1, Ref. 16).


Assuntos
Biomarcadores/sangue , Proteína C-Reativa/metabolismo , Insuficiência Cardíaca/sangue , Peptídeo Natriurético Encefálico/sangue , Fragmentos de Peptídeos/sangue , Pró-Colágeno/sangue , Disfunção Ventricular Esquerda/sangue , Idoso , Ecocardiografia , Feminino , Insuficiência Cardíaca/diagnóstico , Humanos , Masculino , Pessoa de Meia-Idade , Miocárdio/metabolismo , Valores de Referência , Sensibilidade e Especificidade , Disfunção Ventricular Esquerda/diagnóstico
6.
Andrology ; 5(6): 1100-1104, 2017 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-28992369

RESUMO

To investigate the ability of some hematologic prognostic scores demonstrating inflammation in predicting sperm presence in testicular sperm extraction (TESE). We retrospectively investigated the medical data of 430 patients with the diagnosis of non-obstruc tive azoospermia (NOA) who had undergone TESE operation consecutively in our institution between the dates of January 2009 and February 2017. In all, 352 patients with the diagnosis of NOA, with bilaterally palpable vas deferens, who had undergone TESE for the first time, were included in the study. Patients with genetic anomalies, genital infection, history of surgery or vasectomy, chronic diseases, history of inflammatory, metabolic, rheumatologic, or malignant diseases, morbid obesity, with the diagnosis of clinical varicocele, or patients who had undergone TESE for the second time were excluded from the study. According to the results of TESE, the patients were divided into two groups as those with sperm retrieval and those without sperm retrieval. These groups were compared in terms of age, infertility duration, body mass index, hormone profile, hematologic parameters, neutrophil-to-lymphocyte ratio (NRL), monocyte-to-eosinophil ratio (MER), and platelet-to-lymphocyte ratio (PLR). The NLR and PLR levels were found to be significantly higher in patients without sperm retrieval at TESE compared to those with sperm retrieval. The logistic regression analysis showed NLR as an independent factor that showed the presence of spermatozoa at TESE (odds ratio: 4.786, %95 confidence interval: 2.667-8.589, p < 0.001). The area under the ROC curve (AUC) for the PLR was determined to be 0.574. As the calculated AUC value of the PLR was below 0.6, there was insufficient evidence determined at TESE to say that it was a reliable marker to indicate the presence of spermatozoa. The area of the MER value under the ROC curve was not statistically significant. It has been demonstrated that systemic inflammation negatively affects the probability of extracting spermatozoa in TESE and NLR is an independent factor indicating the presence of spermatozoa in TESE.


Assuntos
Azoospermia , Inflamação , Recuperação Espermática , Adulto , Azoospermia/etiologia , Eosinófilos , Humanos , Inflamação/complicações , Contagem de Linfócitos , Masculino , Monócitos , Neutrófilos , Projetos Piloto , Contagem de Plaquetas , Prognóstico , Estudos Retrospectivos
7.
JBR-BTR ; 98(1): 20-6, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26223060

RESUMO

AIM: To evaluate the efficiency of ultrasound elastography (USE) in the differential diagnosis of thyroid nodules. METHODS: One hundred thyroid nodules in 100 patients (79 females, 21 males, age range 18-78; mean age = 45.6 years) were evaluated with real-time freehand USE, using Hitachi EUB 7500 equipment and elasticity scores were obtained. The elasticity was scored as follows: Score 1, elasticity in the entire nodule; Score 2, mainly elastic nodule with the presence of inelastic areas not constant during real time examination; Score 3, constant inelastic areas prevalently arranged at the periphery of the nodule; Score 4, constant inelastic areas prevalently arranged at the center of the nodule; Score 5, no elasticity in the nodule. Also mean strain ratio values were calculated for all nodules. RESULTS: Eighty-four (86%) of cases were benign and sixteen (16%) were malignant. Elasticity score 3 and higher and strain ratio higher than 2.485 had statistically significant relation with malignancy (p < 0.05). CONCLUSIONS: USE including strain ratio calculations besides subjective evaluation of elasticity scores is an efficient imaging method which may contribute to the differential diagnosis of thyroid nodules.


Assuntos
Técnicas de Imagem por Elasticidade/métodos , Nódulo da Glândula Tireoide/diagnóstico por imagem , Adolescente , Adulto , Idoso , Diagnóstico Diferencial , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Ultrassonografia Doppler em Cores
8.
Bratisl Lek Listy ; 116(12): 714-8, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26924139

RESUMO

AIM: The aim of this study was to evaluate the association between an increase in arterial stiffness and the development of left ventricular hypertrophy in essential hypertension patients. MATERIALS AND METHODS: One hundred forty essential hypertension patients were included in the study. Patients were divided into two groups based on echocardiographic measurements; with left ventricular hypertrophy (n=70) and without left ventricular hypertrophy (n=70). The criterion for hypertrophy was accepted as an intraventricular septum and posterior wall thickness in diastole of 11 mm or above. Aortic stiffness values of the patients groups were measured noninvasively by arteriography through the brachial artery. Pulse wave velocity (PWV) measurements were used as indicators of arterial stiffness. RESULTS: When compared to the group without left ventricular hypertrophy, elevated systolic blood pressure, mean blood pressure, and pulse pressure were located in the left ventricular hypertrophy group at a significant level (p > 0.01). A statistically significant difference was not observed in the diastolic blood pressure and pulse measurements of the groups. Pulse wave velocity, the indicator of arterial stiffness, was elevated to a significant degree in the left ventricular hypertrophy group (p > 0.01). While a positive correlation was found between pulse wave velocity and left ventricle mass index, microalbuminuria, high sensitive C-reactive protein (Hs-CRP), and left ventricle end-diastolic volume, a negative correlation was found between pulse wave propagation velocity and left ventricle E/A. CONCLUSIONS: In conclusion, pulse wave analysis is a valuable method for predicting cardiac hypertrophy in essential hypertension (Tab. 6, Ref. 25).

9.
Int Angiol ; 33(5): 455-60, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25294287

RESUMO

AIM: Recent evidence suggests that omentin-1, a visceral adipose-derived cytokine, may play a role in atherosclerosis The aim of this study was to evaluate whether serum omentin-1 levels are associated with peripheral artery disease (PAD) and its severity. METHODS: The present study was cross-sectional and observational. We enrolled 123 patients with PAD and 50 age-matched subjects without PAD. The cardiovascular risk factors, ankle-brachial index (ABI), and serum omentin-1 levels were assessed in all participants RESULTS: Patients with PAD had significantly lower omentin-1 levels than those without PAD (206. ±48.4 vs. 345. ±80 ng/mL, respectively; 0.001). A correlation analysis revealed positive correlations between the omentin-1 level and the ABI ( 0.52, P=0.008). After adjusting for cardiovascular risk factors, a decreased omentin-1 level was found to be an independent predictor of both PAD and its severity as measured by ABI in multivariate logistic regression analysis. CONCLUSION: The current study suggests a strong association between decreased serum omentin-1 levels and PAD and its severity. Thus, omentin-1 may be a novel biomarker for PAD.


Assuntos
Citocinas/sangue , Lectinas/sangue , Doença Arterial Periférica/sangue , Idoso , Índice Tornozelo-Braço , Biomarcadores/sangue , Estudos de Casos e Controles , Distribuição de Qui-Quadrado , Estudos Transversais , Regulação para Baixo , Feminino , Proteínas Ligadas por GPI/sangue , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Razão de Chances , Doença Arterial Periférica/diagnóstico , Doença Arterial Periférica/etiologia , Valor Preditivo dos Testes , Medição de Risco , Fatores de Risco , Índice de Gravidade de Doença , Turquia
10.
Br J Radiol ; 85(1012): 411-4, 2012 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-21712430

RESUMO

OBJECTIVE: The aim of this study was to evaluate the effect of hemiplegia on diaphragmatic movements using motion-mode ultrasonography. METHODS: 23 hemiplegic patients who were diagnosed with a single-hemisphere lesion (mean age 60.5 years; 13 males and 10 females) and a control group of 20 patients (13 males and 7 females) were all evaluated by ultrasonography. Ultrasonography recordings were made of the amplitude of diaphragmatic movement during spontaneous and deep breathing. The patients underwent lung function tests. RESULTS: When the hemiplegic and control groups were compared, the forced vital capacity, forced expired volume in 1 s, maximum inspiratory pressure and maximum expiratory pressure values were significantly lower in the groups with right and left hemiplegia (p<0.05). When a comparison was made between the right hemiplegic group and the control group and between the left hemiplegic group and the control group in terms of diaphragmatic excursions, for both groups, no significant difference was determined between the movements of the right hemidiaphragm during spontaneous and deep breathing and those of the left hemidiaphragm in spontaneous respiration. In contrast, for both hemiplegic groups, a significant decrease was noted in the movements of the left hemidiaphragm in deep respiration. CONCLUSION: The diaphragm is both contralaterally innervated and ipsilaterally innervated, and innervation exhibits marked variations from person to person. This provides an explanation for varying diaphragmatic movements in hemiplegic cases during deep respiration.


Assuntos
Diafragma/fisiopatologia , Hemiplegia/fisiopatologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Diafragma/diagnóstico por imagem , Diafragma/inervação , Feminino , Volume Expiratório Forçado , Lateralidade Funcional , Hemiplegia/diagnóstico por imagem , Humanos , Masculino , Pessoa de Meia-Idade , Movimento , Fenômenos Fisiológicos Respiratórios , Espirometria , Ultrassonografia , Capacidade Vital
11.
AJNR Am J Neuroradiol ; 27(2): 363-9, 2006 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-16484412

RESUMO

BACKGROUND AND PURPOSE: Optimal estimation of cerebral blood-flow volume (BFV) may be an important indicator for better evaluation of the patients with cerebrovascular disorders. In this study, we compared the BFV values at bilateral internal carotid and vertebral arteries of healthy volunteers obtained with color Doppler, power Doppler, and B-flow ultrasound (US) studies and tried to determine which examination is more correlated with MR phase-contrast quantification. METHODS: BFVs of the internal carotid and vertebral arteries of 40 healthy volunteers (19 men and 21 women; age range, 20-47 years) were measured by using color Doppler, power Doppler, B-flow US and MR phase-contrast imaging. The flow measurements obtained with the sonographic techniques were compared with MR phase contrast, which is accepted as the most reliable method for the estimation of cerebral BFV. RESULTS: Quantification with power Doppler imaging showed the highest values among sonography techniques, followed by color Doppler imaging, B-flow imaging (BFI), and MR phase-contrast flow quantification. There was a statistically significant difference between the flow-volume values obtained with these 4 different techniques (P < .05). BFI yielded the closest values (internal carotid arteries, 238.84 mL/min; vertebral arteries, 51.16 mL/min) to MR phase-contrast flow quantification study with higher correlation rates. CONCLUSION: Flow volumes obtained with BFI showed the highest correlation with MR phase-contrast imaging among 3 different sonography techniques. B-flow sonography may be a very effective and cost-efficient alternative for MR phase-contrast studies for the calculation of cerebral BFV.


Assuntos
Velocidade do Fluxo Sanguíneo/fisiologia , Volume Sanguíneo/fisiologia , Artéria Carótida Interna/fisiologia , Ecoencefalografia/métodos , Aumento da Imagem/métodos , Processamento de Imagem Assistida por Computador/métodos , Angiografia por Ressonância Magnética/métodos , Artéria Vertebral/fisiologia , Adulto , Feminino , Humanos , Masculino , Computação Matemática , Pessoa de Meia-Idade , Valores de Referência , Sensibilidade e Especificidade
12.
Abdom Imaging ; 31(3): 293-6, 2006.
Artigo em Inglês | MEDLINE | ID: mdl-16317497

RESUMO

Intestinal pneumatosis is a relatively rare condition that has been associated with a wide variety of abnormalities. Traditionally, this entity has been diagnosed by radiographic films, contrast series, or more accurately by computed tomography. However, reports describing findings of intestinal pneumatosis on sonographic examination, which is an important initial diagnostic tool for abdominal diseases, are limited. We suggest that twinkling artifact may be of value in the sonographic diagnosis of this condition. We report two cases of intestinal pneumatosis that were diagnosed initially by sonography with the aid of twinkling artifact.


Assuntos
Artefatos , Pneumatose Cistoide Intestinal/diagnóstico por imagem , Idoso , Idoso de 80 Anos ou mais , Diagnóstico Diferencial , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Tomografia Computadorizada por Raios X , Ultrassonografia Doppler em Cores
13.
Biol Trace Elem Res ; 100(3): 185-93, 2004 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-15475617

RESUMO

This study was planned to investigate goiter prevalence and serum selenium and urine iodine status among school-age children in the Ankara region of Turkey. Nine hundred five (905) children were investigated; 847 of them were included in the study. Thyroid ultrasound was performed on children who were suspected of being goitrous at physical examination. Serum TSH, thyroxine, triiodotyronine, thyroid antibody, and urine iodine concentrations (UIC) are also measured. Ultrasound measurements revealed a goiter in 107 (12.6%) of the 847 children. Goiter prevalence was significantly lower among iodized-salt users compared to the noniodized salt using group. UIC and serum selenium levels in the goitrous group were significantly lower compared to the nongoitrous group. Despite legally enforced table salt iodization, the region shows the characteristics of mild iodine deficiency. In addition to lower UIC, goitrous children have lower serum selenium levels compared to the nongoitrous ones. Thus, selenium deficiency plays an important role in goiter endemics in Turkey. It can be postulated that table salt iodization might not be enough for the preventive measures of goiter, but informing people about the correct ways of iodized salt consumption, enforcing the iodization of industrial salts, and, as important as these measures, taking selenium deficiency into consideration are essential for preventing goiters in endemic areas.


Assuntos
Bócio/sangue , Bócio/prevenção & controle , Iodo/deficiência , Iodo/urina , Selênio/sangue , Distribuição de Qui-Quadrado , Criança , Feminino , Bócio/diagnóstico por imagem , Humanos , Masculino , Selênio/deficiência , Testes de Função Tireóidea/estatística & dados numéricos , Glândula Tireoide/diagnóstico por imagem , Hormônios Tireóideos/sangue , Turquia/epidemiologia , Ultrassonografia
14.
Abdom Imaging ; 28(1): 103-9, 2003.
Artigo em Inglês | MEDLINE | ID: mdl-12483397

RESUMO

BACKGROUND: We compared tissue harmonic imaging (THI) and conventional ultrasonography to determine whether THI improves image quality and facilitates lesion characterization. METHODS: Eighty-nine various abdominal or pelvic lesions in 71 patients(34 men and 37 women; age range = 3-90 years, median age = 52 years) were evaluated with conventional ultrasonography and THI. Examinations were performed with frequencies of 2-5 MHz. All the images were stored on a hard disk and evaluated separately by three radiologists. RESULTS: According to the interpreters, THI improved overall image quality in 67 (74%) to 76 (84%) and lesion characterization in 28 (31%) to 36 (40%) of 89 lesions when compared with conventional ultrasonography. All three observers agreed that image quality and lesion characterization were improved in 62% and 17% of the lesions, respectively. Lesion groups containing five or more lesions were compared for any difference of improvement in overall image quality and lesion characterization. For overall image quality, a significant difference was found ( p < 0.05). For lesion characterization, there was no significant difference between groups ( p > 0.05). CONCLUSION: THI improved overall image quality and lesion characterization.


Assuntos
Abdome/diagnóstico por imagem , Pelve/diagnóstico por imagem , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Criança , Pré-Escolar , Feminino , Humanos , Aumento da Imagem , Masculino , Pessoa de Meia-Idade , Variações Dependentes do Observador , Ultrassonografia/métodos
15.
Abdom Imaging ; 26(3): 277-80, 2001.
Artigo em Inglês | MEDLINE | ID: mdl-11429952

RESUMO

Transarterial embolization is one of the treatment choices for symptomatic hepatic arterioportal fistula that has low mortality and morbidity. Proper selection of the technique and embolic material is very important for the success of the procedure. We present a case with high-flow arterioportal fistula treated with transarterial embolization using detachable balloons.


Assuntos
Fístula Arteriovenosa/terapia , Oclusão com Balão , Doenças do Sistema Digestório/terapia , Fístula do Sistema Digestório/terapia , Artéria Hepática/cirurgia , Veia Porta/cirurgia , Adolescente , Humanos , Masculino
16.
J Clin Ultrasound ; 29(4): 237-42, 2001 May.
Artigo em Inglês | MEDLINE | ID: mdl-11323779

RESUMO

Power Doppler sonography (PDUS) is a promising technique for the diagnosis of renal infarcts. PDUS's efficacy may be enhanced by using sonographic contrast agents. We evaluated 3 cases of renal infarction using PDUS and the sonographic contrast agent Levovist. The findings were compared with those of other imaging modalities, such as scintigraphy, CT, and angiography. In case 1, PDUS showed a patent interlobar artery only in the lower part of the right kidney and no other perfusion of the right renal parenchyma. Contrast-enhanced PDUS showed patchy areas of preserved perfusion in the lower and middle-upper anterior portions of the kidney. In case 2, PDUS showed diffuse and patchy perfusion defects in the anterolateral portion of the right kidney. On contrast-enhanced PDUS, no signal enhancement was seen in these areas, but the perfusion defects were better delineated. In case 3, PDUS showed no perfusion in the upper pole of the kidney; the nonperfused area extended to the posterior upper portion of the kidney but could not be distinguished from normal tissue. After injection of the contrast agent, there was no enhancement of the posterior extension of the upper pole infarct, but Doppler signals from the surrounding normal parenchyma were enhanced, so the area was more clearly demarcated. The administration of the contrast agent facilitated the visualization of the infarcts in all 3 cases.


Assuntos
Infarto/diagnóstico por imagem , Rim/irrigação sanguínea , Angiografia , Criança , Meios de Contraste/administração & dosagem , Diagnóstico Diferencial , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Cintilografia , Tomografia Computadorizada por Raios X , Ultrassonografia Doppler/métodos
17.
J Ultrasound Med ; 18(4): 283-8, 1999 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-10206216

RESUMO

The aims of this study were to stage gastric malignancies and differentiate between carcinomas and lymphomas. Twenty-two patients were evaluated with endosonography. Tumoral infiltration depth (T stage) and presence of metastatic lymph nodes (N stage) were investigated. Five percent of the cases were staged as T2, 36% as T3, and 59% as T4. According to the endosonographic examination, 14% were NO, 68% were N1, and 18% were N2 malignancies. When compared with results of surgery and histopathologic examination, the accuracy was 82% for both T and N stages. It can be concluded that endosonography is a valuable imaging modality for the local staging of gastric malignancies. Early stage lymphomas can be differentiated from carcinomas, but in advanced stages both have similar appearance.


Assuntos
Endossonografia , Neoplasias Gástricas/diagnóstico por imagem , Estômago/diagnóstico por imagem , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Metástase Linfática , Linfoma não Hodgkin/diagnóstico por imagem , Linfoma não Hodgkin/patologia , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Neoplasias Gástricas/patologia
19.
Cardiovasc Intervent Radiol ; 21(5): 386-92, 1998.
Artigo em Inglês | MEDLINE | ID: mdl-9853144

RESUMO

PURPOSE: To evaluate the efficacy of primary stenting for complex atherosclerotic plaques in aortic and iliac stenoses that are not amenable to balloon angioplasty alone. METHODS: Nineteen patients with complex atherosclerotic plaques were treated with a Palmaz stent (n = 19), Wallstent (n = 1), Strecker stent (n = 1), or Memotherm stent (n = 1). A total of 22 stenoses presenting with complex plaque morphology including ulcerated plaques, ulcerated plaques with focal aneurysms, plaques with heavy calcification, severely eccentric plaques, plaques with overhanging edge, and plaques with spontaneous dissection were stented. The lesions were in the aorta (n = 1), common iliac artery (n = 19), or external iliac artery (n = 2). RESULTS: Immediate angiography after stent placement revealed restoration of patency of the stented segment. Focal aneurysms and ulcerated areas were occluded in the follow-up angiographies obtained 4-12 weeks after the procedure. In one case with poor distal runoff and multiple complex lesions of the iliac artery, subacute occlusion occurred. Clinical and angiographic follow-up (3-46 months) revealed patency of all other stented segments. CONCLUSION: Primary stenting is an effective and reliable approach for complex plaques in stenoses. Patency of the arterial segment with a smooth lumen can be created without the risk of acute complications such as distal embolization, dissection, or occlusion.


Assuntos
Angioplastia/instrumentação , Aorta Abdominal , Arteriopatias Oclusivas/cirurgia , Arteriosclerose/cirurgia , Artéria Ilíaca , Stents , Idoso , Angioplastia com Balão , Arteriopatias Oclusivas/complicações , Arteriopatias Oclusivas/diagnóstico por imagem , Arteriopatias Oclusivas/terapia , Arteriosclerose/diagnóstico por imagem , Arteriosclerose/etiologia , Arteriosclerose/terapia , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Radiografia , Resultado do Tratamento , Grau de Desobstrução Vascular
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...