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1.
Am J Trop Med Hyg ; 108(3): 581-583, 2023 03 01.
Artigo em Inglês | MEDLINE | ID: mdl-36716742

RESUMO

Alveolar echinococcosis is an emerging zoonotic disease caused by the parasite Echinococcus multilocularis. Most patients are diagnosed at a late stage, when lifelong treatment with benzimidazoles is required to stop disease progression. However, for patients who do not tolerate benzimidazole therapy, there are no alternatives. Here, we present a patient with advanced alveolar echinococcosis who was successfully treated with amphotericin B deoxycholate and mefloquine as a rescue therapy after he developed albendazole intolerance.


Assuntos
Anti-Helmínticos , Equinococose , Echinococcus multilocularis , Masculino , Animais , Humanos , Mefloquina/uso terapêutico , Anfotericina B/uso terapêutico , Terapia de Salvação , Equinococose/tratamento farmacológico , Albendazol/uso terapêutico , Anti-Helmínticos/uso terapêutico
2.
Acta Clin Croat ; 61(1): 11-18, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-36398092

RESUMO

The aim of this study was to characterize and compare changes in subcutaneous fat in the malar, brachial and crural region in a cohort of HIV-infected patients taking antiretroviral therapy. This prospective longitudinal study included 77 patients who were selected from the initial cohort evaluated in 2007 and 2008. We examined reversibility of lipoatrophy measured by ultrasound over at least five-year period and factors related to its reversibility. All 46 patients who used stavudine switched from stavudine to another combination. Of 58 patients on zidovudine, 16 (28%) were on a zidovudine based regimen at the second follow up. There was evidence for subcutaneous fat increase in the malar area (p<0.001) and no increase in the brachial and crural areas. Patients who were smokers and had poor adherence to the Mediterranean diet had a thinner malar area at the follow up measurement (p=0.030) and smaller increase in subcutaneous malar fat compared to others (p=0.040). Our study suggested that modest increase of subcutaneous fat in malar area coincided with stopping stavudine and fewer usage of zidovudine. Lifestyle with non-adherence to the Mediterranean diet and smoking were associated with a smaller increase in subcutaneous malar fat.


Assuntos
Infecções por HIV , Síndrome de Lipodistrofia Associada ao HIV , Humanos , Estavudina/efeitos adversos , Zidovudina/efeitos adversos , Síndrome de Lipodistrofia Associada ao HIV/induzido quimicamente , Síndrome de Lipodistrofia Associada ao HIV/complicações , Estudos de Coortes , Estudos Prospectivos , Estudos Longitudinais , Infecções por HIV/tratamento farmacológico , Infecções por HIV/induzido quimicamente , Infecções por HIV/complicações
3.
J Maxillofac Oral Surg ; 21(1): 93-98, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-35400908

RESUMO

Background: Cystic echinococcosis is a manifestation of a zoonosis caused by larvae of the tapeworm Echinococcus granulosus sensu lato and pterygopalatine fossa cases are extremely rare. Clinical Presentation and Findings: A 45-year-old Caucasian female with a history of repeated surgeries for HC was referred to our center for treatment of a cystic mass of the pterygopalatine fossa. Multiorgan dissemination was noted on preoperative imaging. Interventions: An endonasal endoscopic procedure was carried over under general anesthesia and the CE completely removed. Etiology was confirmed by molecular diagnostics. Three weeks after the skull base procedure, the patient underwent a combined abdominal/urological procedure for treatment of other cysts. Conclusion: This case shows that the pterygopalatine fossa HC are amenable to surgical treatment using the endonasal endoscopic approach. Extensive preoperative workup is essential to assess the extent of the disease.

4.
J Infect Dev Ctries ; 15(6): 892-896, 2021 06 30.
Artigo em Inglês | MEDLINE | ID: mdl-34242202

RESUMO

INTRODUCTION: To review unusual actinomycosis cases that appeared as a diagnostic and therapeutic challenge at our institution and to present a literature review on the usual clinical presentations. METHODOLOGY: This retrospective review included all patients hospitalized for actinomycosis in a 10-year period at the University Hospital for Infectious Diseases "Dr. Fran Mihaljevic", Zagreb, Croatia. RESULTS: A total of 15 patients were hospitalized during the observed period, 9 (60%) females and 6 (40%) males. The localizations of actinomycosis were: pelvis (5), lungs (3), blood stream (2), colon (1), penis (1), stomach (1), skin (1), cervicofacial region (1). We present four unusual cases: subcutaneous actinomycotic abscess, actinomycosis of the stomach with underlying non-Hodgkin lymphoma, sepsis due to Actinomyces neslundii originated from chronic asymptomatic periapical tooth abscesses and actinomycosis of the distal part of the penile shaft. CONCLUSIONS: Actinomycosis was a very rare clinical problem in our clinical practice (0.032% of all hospitalizations and 0.0034% of all outpatients) but among those cases classical clinical presentations were also very rare.


Assuntos
Actinomicose/diagnóstico , Hospitalização , Actinomicose/patologia , Idoso , Croácia , Diagnóstico Diferencial , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos
5.
Comput Biol Med ; 125: 103958, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-32927257

RESUMO

BACKGROUND AND PURPOSE: Atherosclerotic plaque tissue rupture is one of the leading causes of strokes. Early carotid plaque monitoring can help reduce cardiovascular morbidity and mortality. Manual ultrasound plaque classification and characterization methods are time-consuming and can be imprecise due to significant variations in tissue characteristics. We report a novel artificial intelligence (AI)-based plaque tissue classification and characterization system. METHODS: We hypothesize that symptomatic plaque is hypoechoic due to its large lipid core and minimal collagen, as well as its heterogeneous makeup. Meanwhile, asymptomatic plaque is hyperechoic due to its small lipid core, abundant collagen, and the fact that it is often calcified. We designed a computer-aided diagnosis (CADx) system consisting of three kinds of deep learning (DL) classification paradigms: Deep Convolutional Neural Network (DCNN), Visual Geometric Group-16 (VGG16), and transfer learning, (tCNN). DCNN was 3-D optimized by varying the number of CNN layers and data augmentation frameworks. The DL systems were benchmarked against four types of machine learning (ML) classification systems, and the CADx system was characterized using two novel strategies consisting of DL mean feature strength (MFS) and a bispectrum model using higher-order spectra. RESULTS: After balancing symptomatic and asymptomatic plaque classes, a five-fold augmentation process was applied, yielding 1000 carotid scans in each class. Then, using a K10 protocol (trained to test the ratio of 90%-10%), tCNN and DCNN yielded accuracy (area under the curve (AUC)) pairs of 83.33%, 0.833 (p < 0.0001) and 95.66%, 0.956 (p < 0.0001), respectively. DCNN was superior to ML by 7.01%. As part of the characterization process, the MFS of the symptomatic plaque was found to be higher compared to the asymptomatic plaque by 17.5% (p < 0.0001). A similar pattern was seen in the bispectrum, which was higher for symptomatic plaque by 5.4% (p < 0.0001). It took <2 s to perform the online CADx process on a supercomputer. CONCLUSIONS: The performance order of the three AI systems was DCNN > tCNN > ML. Bispectrum-based on higher-order spectra proved a powerful paradigm for plaque tissue characterization. Overall, the AI-based systems offer a powerful solution for plaque tissue classification and characterization.


Assuntos
Placa Aterosclerótica , Acidente Vascular Cerebral , Inteligência Artificial , Artérias Carótidas/diagnóstico por imagem , Humanos , Placa Aterosclerótica/diagnóstico por imagem , Medição de Risco , Acidente Vascular Cerebral/diagnóstico por imagem
6.
Int Angiol ; 39(4): 290-306, 2020 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-32214072

RESUMO

BACKGROUND: Recently, a 10-year image-based integrated calculator (called AtheroEdge Composite Risk Score-AECRS1.0) was developed which combines conventional cardiovascular risk factors (CCVRF) with image phenotypes derived from carotid ultrasound (CUS). Such calculators did not include chronic kidney disease (CKD)-based biomarker called estimated glomerular filtration rate (eGFR). The novelty of this study is to design and develop an advanced integrated version called-AECRS2.0 that combines eGFR with image phenotypes to compute the composite risk score. Furthermore, AECRS2.0 was benchmarked against QRISK3 which considers eGFR for risk assessment. METHODS: The method consists of three major steps: 1) five, current CUS image phenotypes (CUSIP) measurements using AtheroEdge system (AtheroPoint, CA, USA) consisting of: average carotid intima-media thickness (cIMTave), maximum cIMT (cIMTmax), minimum cIMT (cIMTmin), variability in cIMT (cIMTV), and total plaque area (TPA); 2) five, 10-year CUSIP measurements by combining these current five CUSIP with 11 CCVRF (age, ethnicity, gender, body mass index, systolic blood pressure, smoking, carotid artery type, hemoglobin, low-density lipoprotein cholesterol, total cholesterol, and eGFR); 3) AECRS2.0 risk score computation and its comparison to QRISK3 using area-under-the-curve (AUC). RESULTS: South Asian-Indian 339 patients were retrospectively analyzed by acquiring their left/right common carotid arteries (678 CUS, mean age: 54.25±9.84 years; 75.22% males; 93.51% diabetic with HbA1c ≥6.5%; and mean eGFR 73.84±20.91 mL/min/1.73m2). The proposed AECRS2.0 reported higher AUC (AUC=0.89, P<0.001) compared to QRISK3 (AUC=0.51, P<0.001) by ~74% in CKD patients. CONCLUSIONS: An integrated calculator AECRS2.0 can be used to assess the 10-year CVD/stroke risk in patients suffering from CKD. AECRS2.0 was much superior to QRISK3.


Assuntos
Doenças Cardiovasculares , Diabetes Mellitus , Insuficiência Renal Crônica , Acidente Vascular Cerebral , Biomarcadores , Doenças Cardiovasculares/diagnóstico por imagem , Espessura Intima-Media Carotídea , Feminino , Taxa de Filtração Glomerular , Humanos , Masculino , Pessoa de Meia-Idade , Insuficiência Renal Crônica/diagnóstico , Estudos Retrospectivos
7.
Emerg Infect Dis ; 26(2): 364-366, 2020 02.
Artigo em Inglês | MEDLINE | ID: mdl-31961317

RESUMO

Alveolar echinococcosis is a parasitic disease caused by the tapeworm larval stage of Echinococcus multilocularis. This zoonotic disease has not been known to occur in Croatia. We report a confirmed case of human alveolar echinococcosis in a patient in Croatia who had never visited a known E. multilocularis-endemic area.


Assuntos
Equinococose/diagnóstico , Echinococcus multilocularis/isolamento & purificação , Idoso , Albendazol/uso terapêutico , Animais , Anti-Helmínticos/uso terapêutico , Croácia , Equinococose/diagnóstico por imagem , Equinococose/tratamento farmacológico , Humanos , Larva , Masculino , Tomografia Computadorizada por Raios X , Zoonoses
8.
Pediatrics ; 142(6)2018 12.
Artigo em Inglês | MEDLINE | ID: mdl-30429271

RESUMO

Because of mostly asymptomatic cyst growth and often-neglected nonspecific low-grade symptoms, many cases of cystic echinococcosis (CE) caused by Echinococcus granulosus in the pediatric population are diagnosed at school age, in an advanced and even complicated stage. In 2003, after 5 months of intermittent dull upper-right abdominal pain and nausea, a 13-year-old boy was diagnosed with massive liver CE, with ∼20 round-shaped double-walled medium-sized infective cysts, which permeated the whole liver. Because of their wide distribution across the liver tissue and the risky superficial position of some cysts, liver transplantation emerged as the optimal therapeutic option. Despite being described as only an exceptionally used method for CE, we subjected our patient on 4 occasions to a radiofrequency energy thermoablation (RFT) procedure similar to the one used for malignant neoplasms. In total, 9 superficially situated cysts were initially treated with RFT by using a 14-gauge outer needle and a temperature of 70°C for 8 minutes per cyst, and the remaining cysts were treated with the puncture-aspiration-instillation-reaspiration procedure, along with albendazole (15 mg/kg per day) therapy, for a period of 20 months. After 2 years of follow-up, 4 residual small-sized semisolidified cysts were seen in the liver, and the patient showed no signs of relapse. Although not routinely used, RFT, along with puncture-aspiration-instillation-reaspiration and prolonged albendazole therapy, has shown good tolerability and long-term efficacy in the treatment of multiple infective CE, which could suggest the usefulness of the RFT method beyond salvage situations in pediatric patients.


Assuntos
Equinococose Hepática/diagnóstico por imagem , Equinococose Hepática/terapia , Doenças Negligenciadas/diagnóstico por imagem , Doenças Negligenciadas/terapia , Ablação por Radiofrequência/métodos , Adolescente , Humanos , Masculino , Resultado do Tratamento
9.
Angiology ; 69(5): 406-415, 2018 May.
Artigo em Inglês | MEDLINE | ID: mdl-28823179

RESUMO

Two types of peripheral artery disease (PAD) in asymptomatic patients with chronic kidney disease (CKD) can be detected by the use of duplex Doppler: medial arterial calcification (MAC) and occlusive PAD. The aim of this pilot study is to evaluate different types of subclinical PAD in upper extremities of patients with CKD. The prevalence of upper extremity MAC and occlusive PAD was investigated in 41 asymptomatic patients with CKD and 18 controls with normal kidney function, using duplex Doppler ultrasound, according to the vascular laboratory protocol. A mild-to-severe MAC was significantly more prevalent in patients with CKD compared to the control group ( P = .015), mostly in radial arteries (RAs; P = .002 and P = .016, respectively). The prevalence of occlusive PAD was not significantly different between the 2 groups ( P = .381). Patients in the CKD group were younger, nonsmokers, and more often had hypertension ( P = .038, P = .038, and P = .034, respectively). A duplex ultrasound screening for upper extremity subclinical PAD in patients with CKD in a predialysis stage may identify patients with mild-to-severe MAC which is important in surgery of hemodialysis access.


Assuntos
Doença Arterial Periférica/epidemiologia , Insuficiência Renal Crônica/complicações , Extremidade Superior/irrigação sanguínea , Calcificação Vascular/epidemiologia , Adulto , Idoso , Estudos de Casos e Controles , Humanos , Pessoa de Meia-Idade , Doença Arterial Periférica/diagnóstico , Projetos Piloto , Prevalência , Diálise Renal , Insuficiência Renal Crônica/terapia , Calcificação Vascular/diagnóstico
10.
Case Rep Infect Dis ; 2016: 1528981, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27803824

RESUMO

Upon HIV infection diagnosis, an 8-month-old boy was transferred for evaluation of worsening respiratory distress requiring mechanical ventilation. Pneumocystis jirovecii pneumonia (PCP) was diagnosed; the boy also had a nonhealing ulcer at the site of vaccination with Statens Serum Institut (Danish strain) Bacillus Calmette-Guérin (BCG) vaccine and associated axillary lymphadenopathy. PCP treatment resulted in weaning from mechanical ventilation. Antimycobacterial treatment was immediately attempted but was discontinued because of hepatotoxicity. Over several months, he developed splenic lesions and then disseminated skin and cystic bone lesions. M. bovis was repeatedly cultured from both skin and bone lesions despite various multidrug antimycobacterial regimens which included linezolid. Eventually, treatment with a regimen of rifabutin, isoniazid, ethambutol, and linezolid led to definitive cure. Clinicians should consider a linezolid-containing regimen for treatment of severe disseminated BCG infection, especially if other drug regimens have failed. Although drug toxicity is a particular concern for young children, this patient received linezolid for 13 months without serious toxicity. This case also highlights the need for universal screening among pregnant women to prevent vertical transmission of HIV. Finally, routine immunization with BCG vaccine at birth should be questioned in countries with low and declining burden of tuberculosis.

11.
Croat Med J ; 56(1): 14-23, 2015 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25727038

RESUMO

AIM: To compare four cardiovascular disease (CVD) risk models and to assess the prevalence of eligibility for lipid lowering therapy according to the 2013 American College of Cardiology/American Heart Association (ACC/AHA) guidelines, European AIDS Clinical Society Guidelines (EACS), and European Society of Cardiology and the European Atherosclerosis Society (ESC/EAS) guidelines for CVD prevention in HIV infected patients on antiretroviral therapy. METHODS: We performed a cross-sectional analysis of 254 consecutive HIV infected patients aged 40 to 79 years who received antiretroviral therapy for at least 12 months. The patients were examined at the HIV-treatment centers in Belgrade and Zagreb in the period February-April 2011. We compared the following four CVD risk models: the Framingham risk score (FRS), European Systematic Coronary Risk Evaluation Score (SCORE), the Data Collection on Adverse Effects of Anti-HIV Drugs study (DAD), and the Pooled Cohort Atherosclerotic CVD risk (ASCVD) equations. RESULTS: The prevalence of current smoking was 42.9%, hypertension 31.5%, and hypercholesterolemia (>6.2 mmol/L) 35.4%; 33.1% persons were overweight, 11.8% were obese, and 30.3% had metabolic syndrome. A high 5-year DAD CVD risk score (>5%) had substantial agreement with the elevated (≥7.5%) 10-year ASCVD risk equation score (kappa=0.63). 21.3% persons were eligible for statin therapy according to EACS (95% confidence intervals [CI], 16.3% to 27.4%), 25.6% according to ESC/EAS (95% CI, 20.2% to 31.9%), and 37.9% according to ACC/AHA guidelines (95% CI, 31.6 to 44.6%). CONCLUSION: In our sample, agreement between the high DAD CVD risk score and other CVD high risk scores was not very good. The ACC/AHA guidelines would recommend statins more often than ESC/EAS and EACS guidelines. Current recommendations on treatment of dyslipidemia should be applied with caution in the HIV infected population.


Assuntos
Fármacos Anti-HIV/uso terapêutico , Doenças Cardiovasculares/prevenção & controle , Dislipidemias/tratamento farmacológico , Definição da Elegibilidade/estatística & dados numéricos , Infecções por HIV/tratamento farmacológico , Inibidores de Hidroximetilglutaril-CoA Redutases/uso terapêutico , Modelos Estatísticos , Adulto , Idoso , Croácia/epidemiologia , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Guias de Prática Clínica como Assunto , Prevalência , Medição de Risco , Fatores de Risco , Sérvia/epidemiologia , Estados Unidos
12.
J Int AIDS Soc ; 17(4 Suppl 3): 19549, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25394056

RESUMO

INTRODUCTION: We evaluated cardiovascular risks in HIV-infected patients from Croatia and Serbia and the eligibility for statin therapy as recommended by the 2013 American College of Cardiology/American Heart Association (ACC/AHA) guidelines, European AIDS Clinical Society (EACS) Guidelines and European Society of Cardiology and the European Atherosclerosis Society (ESC/EAS) guidelines for cardiovascular disease (CVD) prevention [1-3]. MATERIALS AND METHODS: A cross-sectional analysis of consecutive patients between 40 and 79 years old who had received antiretroviral therapy for at least 12 months was performed. RESULTS: Of 254 (132 from Croatia and 122 from Serbia) persons included in the study, 76% were male; median age was 49 years. Up to 51.6% of persons had a high CVD risk. The prevalence of current smoking was 42.9%, hypertension 31.5% and hypercholesterolaemia (>6.2 mmol/L) 35.4%. Statins would be recommended to 21.3% (95% CI, 16.3% to 27.4%) of persons by the EACS, 25.6% (95% CI, 20.2% to 31.9%) by ESC/EAS and 37.9% (95% CI, 31.6 to 44.6%) by the ACC/AHA guidelines. A high 5-year data collection on adverse effects of anti-HIV drugs study risk score (>5%) had a moderate agreement with the high (≥20%) 10-year CVD Framingham risk score (kappa=0.47) and high (≥5%) 10-year European systematic coronary risk evaluation score algorithm (kappa=0.47), and substantial agreement with the elevated (≥7.5%) 10-year Pooled Cohort Atherosclerotic CVD risk equation score (kappa=0.63). CONCLUSION: We found a high prevalence of CVD risks in patients from Croatia and Serbia. The ACC/AHA guideline would recommend statins more often than ESC/EAS and EACS guidelines.

13.
Croat Med J ; 54(4): 330-8, 2013 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-23986273

RESUMO

AIM: To evaluate the influence of food habits, specifically adherence to the Mediterranean diet, on carotid intima-media thickness (CIMT) and the presence of plaques in HIV-infected patients taking antiretroviral therapy (ART) and non-HIV-infected participants and to determine if HIV infection contributes independently to subclinical atherosclerosis. METHODS: We conducted a cross-sectional study of 110 HIV-infected patients on ART and 131 non-HIV-infected participants at the University Hospital for Infectious Diseases in Zagreb, Croatia, from 2009-2011. CIMT measurement and determination of carotid plaque presence was detected by ultrasound. Adherence to the Mediterranean diet was assessed by a 14-point food-item questionnaire. Subclinical atherosclerosis was defined by CIMT≥0.9 mm or ≥1 carotid plaque. RESULTS: In HIV-infected patients, subclinical atherosclerosis was associated with older age (Plt;0.001; Mann-Whitney test), higher body mass index (P=0.051; Mann-Whitney test), hypertension (Plt;0.001; χ(2) test), and a lower Mediterranean diet score (P=0.035; Mann-Whitney test), and in non-HIV-infected participants with older age (P lt; 0.001; Mann-Whitney test) and hypertension (P=0.006; χ(2) test). Multivariate analysis showed that decreased adherence to the Mediterranean diet was associated with higher odds of subclinical atherosclerosis (odds ratio [OR] 2.28, 95% confidence interval [CI] 1.10-4.72, P=0.027) as was current smoking (OR 2.86, 95% CI 1.28-6.40), hypertension (OR 3.04, 95% CI 1.41-6.57), and male sex (OR 2.35, 95% CI 0.97-5.70). There was a significant interaction of age and HIV status, suggesting that older HIV-infected patients had higher odds of subclinical atherosclerosis than controls (OR 3.28, 95% CI 1.24-8.71, P=0.017 at the age of 60 years). CONCLUSION: We confirmed the association between lower adherence to the Mediterranean diet and increased risk of subclinical atherosclerosis and found that treated HIV infection was a risk factor for subclinical atherosclerosis in older individuals.


Assuntos
Aterosclerose/etiologia , Artérias Carótidas/diagnóstico por imagem , Espessura Intima-Media Carotídea , Estenose das Carótidas/etiologia , Dieta Mediterrânea , Infecções por HIV/complicações , Túnica Íntima/diagnóstico por imagem , Adulto , Fármacos Anti-HIV/uso terapêutico , Aterosclerose/diagnóstico por imagem , Índice de Massa Corporal , Estenose das Carótidas/diagnóstico por imagem , Estudos Transversais , Comportamento Alimentar , Feminino , Infecções por HIV/tratamento farmacológico , Humanos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Razão de Chances , Fatores de Risco , Inquéritos e Questionários
14.
Coll Antropol ; 37(2): 561-8, 2013 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-23941005

RESUMO

The most commonly used staging system for cervical cancer is based on the International Federation of Gynaecology and Obstetrics (FIGO) staging system. Magnetic resonance imaging (MRI) has been accepted as the optimal tool for evaluation of the main prognostic factors and selection of therapeutic strategy. The purpose of this study was to compare the preoperative clinical examination FIGO staging findings with MRI and postoperative pathology report in females with primary cancer of the cervix. The study prospectively included 46 females consecutively hospitalized at the Department of Gynaecology and Obstetrics at the "Sestre milosrdnice" University Hospital Center in Zagreb. Interviews, clinical examination, transvaginal ultrasound and MRI were performed in all patients. In selected patients the surgical procedure was done and the correlation of clinical findings according to FIGO classifications, MRI and histopathological findings was completed. According to FIGO classification, positive clinical findings for stage IIA were found in 26/46 (55.5%) and stage IIB in 20/46 (44.5%)patients. FIGO MR modified classification confirmed stage IIA in 30/46 (66.6%) and stage IIB in 16/46 (33.4%) patients. Surgery (Wertheim radical hysterectomy with bilateral pelvic and selective para-aortic lymphadenectomy) was performed in 33/46 (71%) patients with clinically, MR, cytologically and pathohistologically confirmed findings of cervical cancer: 26 patients with IIA clinically FIGO stage and 7 with IIB stage. MRI examination proved better than clinical examination in staging of cervical carcinoma with 90.9% versus 79.0% accuracy rate. We suggest the application of the following MR protocol in all clinically staged FIGO IIA and IIB patients: T1W, T2WI and postcontrast dynamic T1WI after 3 and 60 seconds and after 5 minutes, performed on 1.5T MR machine.


Assuntos
Carcinoma in Situ/patologia , Imageamento por Ressonância Magnética , Neoplasias do Colo do Útero/patologia , Adulto , Idoso , Carcinoma in Situ/cirurgia , Feminino , Humanos , Histerectomia/métodos , Pessoa de Meia-Idade , Estadiamento de Neoplasias/métodos , Cuidados Pré-Operatórios , Estudos Prospectivos , Neoplasias do Colo do Útero/cirurgia
15.
AJR Am J Roentgenol ; 197(5): 1258-62, 2011 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-22021523

RESUMO

OBJECTIVE: The purpose of this article is to assess the differences, if any, in the values of carotid artery stiffness parameters between HIV-infected subjects without known cardiovascular disease (CVD) or carotid artery plaques and HIV-uninfected control subjects matched for sex, age, body mass index, and other CVD risk factors (i.e., hypertension, hypercholesterolemia, diabetes, and cigarette smoking). Arterial stiffness is emerging as a predictor of CVD risk. By recording the blood pressure, an automated echo-tracking system implemented in ultrasound equipment allows evaluation of arterial stiffness. SUBJECTS AND METHODS: Fifty-four HIV-infected patients without a history of CVD were closely matched for sex, age, body mass index, and CVD risk factors to 54 HIV-uninfected control subjects on an individual basis. Ultrasound studies of carotid artery stiffness parameters were performed using ultrasound equipment with a linear broadband high-frequency transducer. Carotid intima-media thickness was also measured. Repeatability between operators was assessed. Nonparametric Mann-Whitney U test, chi-square statistics, Fisher exact test, Pearson correlation coefficient, and intraclass correlation coefficient were used for statistical analysis. A p value less than 0.05 was considered statistically significant. RESULTS: Except for arterial compliance in HIV-infected subjects, arterial stiffness parameters were correlated with age in both groups. Compared with matched control subjects, HIV-infected subjects showed lower arterial compliance parameter values (0.95 [interquartile range, 0.78-1.23] vs 0.76 [interquartile range, 0.62-1.00]; p = 0.0009), whereas other parameters were similar. Repeatability between operators was good. CONCLUSION: HIV-infected subjects have an arterial compliance significantly lower than that of control subjects. The impairment of carotid artery distensibility may contribute to subclinical atherosclerosis.


Assuntos
Artérias Carótidas/diagnóstico por imagem , Artérias Carótidas/fisiopatologia , Soropositividade para HIV , Adulto , Terapia Antirretroviral de Alta Atividade , Distribuição de Qui-Quadrado , Estudos Transversais , Feminino , Soropositividade para HIV/tratamento farmacológico , Humanos , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Estatísticas não Paramétricas , Ultrassonografia
16.
Acta Clin Croat ; 49(1): 33-41, 2010 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-20635582

RESUMO

Magnetic resonance imaging (MRI) is a radiological imaging method that has not yet found routine application in the detection and assessment of malignant tumors of the maxillofacial region. The aim of this study was to evaluate MRI in the detection, diagnosis and differential diagnosis of malignant tumors of the maxillofacial region. This prospective study included 42 patients with clinically confirmed malignant tumors of the maxillofacial region. All patients were examined by MRI. This imaging method was evaluated for the ability to detect tumor location and to analyze dimensions and structure of the tumor, bone involvement, effect on neurovascular structures and extension to soft tissues. MRI results were compared with histopathologic and intraoperative findings as the 'gold standard' methods. MRI identified all of the clinically confirmed tumors. The sensitivity for tumor location was 94.4%, tumor necrosis 93%, hemorrhage 93.3% and bone involvement 91.4%. The specificity for tumor location was 84%, tumor necrosis 92.8%, hemorrhage 92.8% and bone involvement 85.7%. In the evaluation of soft tissue tumor extension to bone structures, MRI sensitivity and specificity was 94.4% and 88.2%, respectively. The sensitivity for perineural infiltration and tumor involvement of vascular structures was 91% and 91.6%, respectively. The specificity for perineural infiltration was 96.7% and for tumor involvement of vascular structures 88%. MRI sensitivity and specificity for intracranial extension, intraorbital propagation, extension to pterygopalatine fossa and other surrounding anatomic spaces was 93.5% and 90.9%, respectively. MRI proved advantageous for the ability to distinguish neurovascular structures from adjacent soft tissues without the use of intravenous contrast media. Study results demonstrated MRI to provide valuable information in the analysis of tumor structure, bone involvement and extension to soft tissues of malignant tumors of the maxillofacial region.


Assuntos
Neoplasias Maxilomandibulares/diagnóstico , Imageamento por Ressonância Magnética , Neoplasias Nasais/diagnóstico , Neoplasias dos Seios Paranasais/diagnóstico , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Sensibilidade e Especificidade , Adulto Jovem
17.
Wien Klin Wochenschr ; 121(23-24): 776-9, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-20047116

RESUMO

We present a case of childhood arterial ischemic stroke associated with proven adenoviral upper respiratory tract infection in a previously healthy 4-year-old boy. Adenoviral meningitis and encephalitis have been reported repeatedly, thus confirming the neuroinvasive capability of these viruses. However, an association between adenoviral infection and arterial ischemic stroke has not been described thus far. HIV and varicella zoster virus are the only microorganisms that have been consistently associated with arterial ischemic stroke in the absence of acute central nervous system infection. In HIV-infected individuals ischemic stroke can be caused by vasculitis and hypercoagulability. Granulomatous arteritis of the vessel wall causes post-varicella cerebral infarction and ischemic stroke after herpes zoster ophthalmicus. We suggest that in our patient a post-varicella cerebral infarction-like mechanism of adenoviral spread to the affected artery wall occurred through the ophthalmic branch of the trigeminal nerve. Adenoviruses are neuroinvasive and inflamed conjunctiva might have permitted introduction of the virus into ophthalmic nerve tissue. In consequence, the stenotic lesion of the artery might have been induced by the presence of adenovirus and the subsequent inflammatory reaction. We recommend a prompt quest for adenoviral infection in all previously healthy children with fever and clinical presentation compatible with ischemic stroke, because timely diagnosis and treatment could improve the outcome and hasten neurological recovery.


Assuntos
Infecções por Adenoviridae/complicações , Infecções por Adenoviridae/diagnóstico , Isquemia Encefálica/diagnóstico , Isquemia Encefálica/etiologia , Infecções Respiratórias/complicações , Infecções Respiratórias/diagnóstico , Acidente Vascular Cerebral/diagnóstico , Acidente Vascular Cerebral/etiologia , Pré-Escolar , Humanos , Masculino
18.
Coll Antropol ; 27(2): 627-34, 2003 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-14746152

RESUMO

Developmental hip dysplasia (DDH) is a deformation of the locomotor system that can occur on previously normal bone structures in late fetal development. The study was undertaken to determine the value of continuous ultrasound screening in early diagnosis of DDH. In the area covered by the Labin Primary Health Center, clinical and ultrasound examination of the hips was performed in all children during the fourth month of life from 1989 to 2001. The incidence of DDH was 3.3%. The authors compared the obtained results with results of clinically examined hips in the period from 1968 to 1988 (incidence 1.7%), before the ultrasound diagnostics was introduced. The hip radiograms were performed only in children with clinically positive signs of higher degree of DHD. The ultrasound examination was performed with Hitachi EUB 410 real time linear transducer with a 5 MHz probe. The examiners used methods and criteria suggested by Graf. The most useful feature of the ultrasound method is that it allows the visualization of cartilaginous femoral head and its relationship to the acetabulum in infants. The method is non-invasive, repeatable, without risk of ionizing radiation or need for the contrast material administration. The results of the study revealed an important increase of DHD incidence after the introduction of ultrasound examination. US is highly sensitive in hip imaging and reveals the existence of a number of dislocated and subluxated hips that otherwise would be missed. The anomaly was discovered in the early period of life, which is very important for appropriate therapeutic effects.


Assuntos
Luxação Congênita de Quadril/diagnóstico por imagem , Triagem Neonatal , Feminino , Articulação do Quadril/diagnóstico por imagem , Humanos , Lactente , Recém-Nascido , Masculino , Ultrassonografia
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