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1.
Reprod Sci ; 30(8): 2547-2553, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-36752986

RESUMO

The purpose of this study is to compare conventional start in early follicular phase (EFP) with late follicular phase (LFP) and luteal phase (LP) in controlled ovarian stimulation (COS) for fertility preservation (FP) to assess differences in clinical outcomes. Retrospective study of the first cycles of COS for FP in oncological patients between 2012 and 2020 in a tertiary hospital. Two-hundred forty-eight cycles were classified into 3 groups: 176 cycles in EFP, 8 cycles in LFP, and 52 cycles in LP. Comparing LFP to EFP, there were no differences in number of oocytes (10.0 [6.3-16.0] vs 12.0 [8.0-18.0]; p = 0.253) or number of metaphase II (MII) obtained (7.0 [2.3-13.3] vs 9.0 [6.0-13.0]; p = 0.229). Total number of days needed was higher in LFP (14.5 [12.5-16.0] vs 3.0 vs 10.0 [8.3-11.0 p = 0.000) but without significant differences in number of days of usage of gonadotropins (11.5 [8.3-12.8] vs 10.0 [8.3-11.0] p = 0.308). No differences were found between LP and EFP in number of oocytes (14.5 [9.0-20.0] p = 0.151) or MII (11.5 [7.0-16.0] p = 0.084). Number of days of gonadotropins (11.0 [10.0-12.0] p = 0.00) and total dosing (3000.0 [2475.0-3600.0] p = 0.013) were significantly higher in LP. FORT and FOI were similar in all groups. COS with a random start in fertility preservation has similar outcomes to EFP start. Therefore, we can initiate COS at any phase of the menstrual cycle with optimal results. However, LP may need more days of stimulation.


Assuntos
Preservação da Fertilidade , Feminino , Animais , Preservação da Fertilidade/métodos , Estudos Retrospectivos , Ciclo Menstrual , Gonadotropinas , Indução da Ovulação/métodos , Criopreservação
2.
Semergen ; 46(2): 90-100, 2020 Mar.
Artigo em Espanhol | MEDLINE | ID: mdl-31831323

RESUMO

INTRODUCTION: Several studies have found poorer control of the cardiovascular risk factors among women with type 2 diabetes. This could be explained by the lack of awareness of their cardiovascular risk among professionals. AIMS: To determine the perception and knowledge of health care professionals involved in diabetes management on the impact of gender difference on the control of cardiovascular risk factors in patients with type 2 diabetes mellitus. METHODS: A 24-question survey related to knowledge and perceptions (grouped by topics) was sent to professionals who were interested and involved in diabetes care. A total of 998 surveys were analysed. An ANOVA model was constructed to compare the results by specialty and years of experience, as well as adjusting for the rest of the confounding factors. On having more than 12 correct answers (favourable result), a logistic regression was also performed in order to study the factors that could have an influence. RESULTS: The mean number of correct answers was 10.3, and was slightly better for specialists (range 10.7-11.8), and associated with years of experience (P=.001). Female gender and years of experience were identified as predictors of having more than 12 correct answers. CONCLUSIONS: The level of knowledge was low, but similar to the results of the other studies.


Assuntos
Doenças Cardiovasculares/etiologia , Diabetes Mellitus Tipo 2/complicações , Conhecimentos, Atitudes e Prática em Saúde , Pessoal de Saúde/estatística & dados numéricos , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Fatores Sexuais , Inquéritos e Questionários , Adulto Jovem
4.
Clin Exp Immunol ; 186(1): 86-95, 2016 10.
Artigo em Inglês | MEDLINE | ID: mdl-27414487

RESUMO

Decreased blood dendritic cell precursors (DCP) count is linked with atherosclerotic disease, while reduction of circulating DCP is also seen in patients with chronic kidney disease (CKD). As poor vitamin D status could be linked to a compromised innate immune response, we hypothesized that vitamin D status might be involved in the decrease in circulating DCP in CKD. Moreover, the potential role of inflammation was considered. Circulating myeloid (mDCP), plasmacytoid (pDCP) and total DCP (tDCP) were analysed using flow cytometry in 287 patients with CKD stage 3. Serum 25(OH)D and 1,25(OH)2D levels were measured using enzyme-linked immunosorbent assays (ELISA), interleukin (IL)-6, IL-10 and tumour necrosis factor (TNF)-α using cytometric bead array, C-reactive protein (CRP) using a high-sensitivity (hs) ELISA. Contrary to our hypothesis, there was no association between vitamin D levels and DCP, although their number was decreased significantly in CKD (P < 0·001). Instead, mDCP (r = -0·211) and tDCP (r = -0·188,) were associated slightly negatively with hsCRP but positively with the estimated glomerular filtration rate (eGFR, r = 0·314 for tDCP). According to multivariate linear regression, only higher hsCRP concentration and the presence of diabetes mellitus had a significant negative influence on DCP count (P < 0·03, respectively) but not vitamin D, age and eGFR. A significant impact of vitamin D on the reduction of circulating DCP in CKD 3 patients can be neglected. Instead, inflammation as a common phenomenon in CKD and diabetes mellitus had the main influence on the decrease in DCP. Thus, a potential role for DCP as a sensitive marker of inflammation and cardiovascular risk should be elucidated in future studies.


Assuntos
Contagem de Células , Células Dendríticas , Inflamação/complicações , Insuficiência Renal Crônica/sangue , Insuficiência Renal Crônica/etiologia , Células-Tronco , Vitamina D/sangue , Idoso , Biomarcadores , Proteína C-Reativa , Comorbidade , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Fatores de Risco
5.
Arch Soc Esp Oftalmol ; 91(7): 337-40, 2016 Jul.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-26897333

RESUMO

CASE REPORT: A 33-year-old Caucasian female presented with epiphora, ocular pain, and foreign body sensation in both eyes for one month. Examination revealed bilateral peripheral corneal ulcers. The patient had been treated with immunomodulators, and she was treated in the left eye with peripheral semi-circular keratoplasty, penetrating keratoplasty, conjunctival-corneal-scleroplasty, buccal mucosal graft, tibial osteo-keratoprosthesis and finally, retinal detachment. DISCUSSION: Mooren's ulcer is an immunological corneal disease. This lesion must be treated initially with immunomodulators. Surgical treatment should be considered when a risk of corneal perforation is present, when the perforation appears, or under acute necrosis.


Assuntos
Transplante de Córnea/métodos , Úlcera da Córnea/cirurgia , Adulto , Extração de Catarata , Terapia Combinada , Lentes de Contato , Úlcera da Córnea/tratamento farmacológico , Úlcera da Córnea/imunologia , Feminino , Seguimentos , Humanos , Imunossupressores/uso terapêutico , Ceratoplastia Penetrante , Mucosa Bucal/transplante , Reoperação , Tíbia/transplante , Transplante Heterotópico , Vitrectomia
6.
J Craniomaxillofac Surg ; 43(8): 1428-37, 2015 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-26293191

RESUMO

OBJECTIVE: Frontoorbital advancement (FOA) in patients with non-syndromic craniosynostosis mainly addresses the aesthetic and functional correction of the frontoorbital region. To help define the operative strategy and any follow-up assessments after surgical correction, objective parameters describing the critical regions of skull deformity are essential. Based on 3D morphometric analysis, new parameters for the documentation of changes of the frontoorbital bandeau were developed in a prospective study. METHODS AND MATERIALS: In a prospective series, 13 children with non-syndromic craniosynostosis (seven metopic, four unilateral coronal, and two bilateral coronal) treated with frontoorbital advancement, underwent detailed morphometric and volumetric evaluation using a 3D light optical scan system (3D-Shape, Erlangen, Germany). Measurements were obtained preoperatively and at 3, 6 and 12 months postoperatively with newly developed parameters generated by cephalometric analysis software (Onyx Ceph, Image Instruments, Chemnitz, Germany). RESULTS: In most patients, frontoorbital advancement resulted in stable long-term results without growth inhibition and with normalization or improvement of ongoing skull development. The mean frontal angle was 145° and the frontoparietal angle 137-140°. The cephalic index was normalized or markedly improved. Head circumference and head height increased significantly (p = 0.001 and p = 0.002, respectively). These changes were confirmed in all postoperative measurements. CONCLUSION: During the 12-month follow-up period all angle parameters proved to be stable and no major impairment of normal skull growth was observed after FOA. The frontoorbital angle is a useful parameter in evaluating long-term outcome. The frontoparietal angle is important for the stability of the frontoparietal region, in which a certain growth inhibition may be observed postoperatively.


Assuntos
Craniossinostoses/cirurgia , Craniotomia/métodos , Osso Frontal/cirurgia , Imageamento Tridimensional/métodos , Órbita/cirurgia , Pontos de Referência Anatômicos/crescimento & desenvolvimento , Pontos de Referência Anatômicos/patologia , Desenvolvimento Ósseo/fisiologia , Cefalometria/métodos , Suturas Cranianas/cirurgia , Seguimentos , Osso Frontal/crescimento & desenvolvimento , Osso Frontal/patologia , Humanos , Lactente , Imagem Óptica/métodos , Órbita/crescimento & desenvolvimento , Osso Parietal/patologia , Osso Parietal/cirurgia , Fotogrametria/métodos , Estudos Prospectivos , Crânio/crescimento & desenvolvimento , Crânio/patologia , Resultado do Tratamento
7.
Rofo ; 187(7): 577-83, 2015 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-25962750

RESUMO

PURPOSE: To analyze the outcome of patients undergoing percutaneous CT-guided radiofrequency ablation (RFA) of small renal masses (SRM) at a single center during a ten-year time period. MATERIALS AND METHODS: Patient records of renal RFAs (07/2003 - 11/2013) were reviewed. Indications were SRM suspicious of malignancy on imaging and one of the following: severe comorbidity; old age; solitary kidney; impaired renal function; patient wish. Biopsy was performed at the time of RFA. Patients were excluded if no follow-up was available. Patient and procedural characteristics were recorded. Survival rates were calculated using the Kaplan-Meier's method and compared with log-rank or cox tests. RESULTS: 38 patients (16 females, mean age 70.0 years [range 52 - 87]) presenting with a solitary SRM were included in the study. Biopsy showed malignancy in 29 patients; 9 had benign tumors. 26 patients suffered from cardiovascular, respiratory or hepatic comorbidities. Technical success (complete ablation on first follow-up) was achieved in 95 % of cases. Two major complications (bowel perforation; hematothorax) occurred. The 3- and 7-year overall survival (OS) [any cause] rates were 73.4 ±â€Š0.8 % and 50.3 ±â€Š1.0 %, respectively (mean follow-up 54.6 months, range 1 - 127). 4 recurrences and 2 metastases were observed. The presence of comorbidities was the only independent predictor of OS. There was no difference in survival between patients with benign and malignant tumors. CONCLUSION: RFA of SRM is successful in a large percentage of cases with a low complication rate and durable local control. As RFA is typically performed in multimorbid patients, overall survival seems to depend primarily on comorbidities rather than cancer progression. Key Points • RFA of SRM is technically successful in the majority of cases. • RFA leads to a high degree of local tumor control. • Post-RFA most patients ultimately die of comorbidities. • Overall survival post-RFA does not significantly differ between benign and malignant tumors in multimorbid patients.


Assuntos
Carcinoma de Células Renais/diagnóstico por imagem , Carcinoma de Células Renais/cirurgia , Ablação por Cateter/instrumentação , Neoplasias Renais/diagnóstico por imagem , Neoplasias Renais/cirurgia , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Reprodutibilidade dos Testes , Sensibilidade e Especificidade , Cirurgia Assistida por Computador/métodos , Tomografia Computadorizada por Raios X/métodos , Resultado do Tratamento
8.
Arch Soc Esp Oftalmol ; 90(6): 264-8, 2015 Jun.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-25817961

RESUMO

OBJECTIVE: A review was performed on all patients with Stickler syndrome that had been treated in our Centre since it was diagnosed, in order to evaluate the risk of suffering a retinal detachment (RD). METHODS: A total of 14 patients, diagnosed by clinical criteria, were included. The following variables were evaluated: age, gender, ocular background, follow-up, initial and final visual acuity (VA), optical prescription, prophylactic treatment, surgery and techniques performed. The risk age to suffer a RD, as well as cataracts, was determined by using the Kaplan-Meier survival curve analysis. RESULTS: From a total of 5 men and 9 women, the median initial VA was 0.35, which was the same as the final VA. The median optical prescription was -9.5 D myopia. The median of follow-up was 7 years. Ocular background was 4 RD cases and 2 Lasik surgeries. The operations performed were 8 RD, 12 cataract, 2 glaucoma, 2 macular hole, and one endotropia. The median age of RD was 20 years and cataract 34 years. As regards surgical tecnique, 4 scleral buckle cases, and 4 scleral buckle+pars plana vitrectomy cases were formed. The prophylactic treatments performed were: one scleral buckle case, 4 endolaser photocoagulation, and one cryotherapy. Two of which presented with RD. CONCLUSION: In the series presented, retinal detachment in Stickler syndrome mainly occurs in the second decade of life, with cataracts mainly developing in the fourth decade.


Assuntos
Artrite/epidemiologia , Doenças do Tecido Conjuntivo/epidemiologia , Perda Auditiva Neurossensorial/epidemiologia , Descolamento Retiniano/epidemiologia , Adolescente , Adulto , Artrite/cirurgia , Criança , Pré-Escolar , Doenças do Tecido Conjuntivo/cirurgia , Feminino , Seguimentos , Perda Auditiva Neurossensorial/cirurgia , Humanos , Masculino , Procedimentos Cirúrgicos Oftalmológicos/estatística & dados numéricos , Descolamento Retiniano/cirurgia , Estudos Retrospectivos , Resultado do Tratamento , Adulto Jovem
9.
Eur J Vasc Endovasc Surg ; 48(5): 585-91, 2014 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-25201516

RESUMO

OBJECTIVE: To retrospectively evaluate the efficacy and time-to-hemostasis of antegrade femoral access closure using the ExoSeal vascular closure device (VCD). DESIGN: Retrospective, single-center analysis. MATERIALS AND METHODS: Between September 2010 and February 2013, 148 ExoSeal VCD closures (5-7F) of antegrade femoral accesses were performed in 119 patients (70 males, mean age 71.6 years, range 40-97 years). In all cases initial diagnostic angiography was performed via an 18G/3.8F retrograde femoral access, which was left in place during intervention (in-house standard) and was used to obtain control angiography after successful closure of the antegrade access to determine hemostasis. Technical device success was defined as ExoSeal closure without major VCD-related complications; procedural success as hemostasis within 5 minutes. Statistical analysis was performed using a logistic regression model and correlation analyses. RESULTS: 145/148 (98.0%) ExoSeal closures were technically successful (5F: n = 76; 6F: n = 65; 7F: n = 7). Angiographic control showed closure after 2 minutes in 130/145 cases. In a further 14 cases hemostasis was achieved after an additional 3 minutes MC, so that closure was successful within 5 minutes in 144/148 cases (97.3%). No major complication occurred. One minor complication was recorded in a 6F access case. Pre-interventional activated partial thromboplastin time (aPTT) was the only statistically significant predictor of necessary manual compression (MC) > 2 minutes (p = .01), but with an odds-ratio of only 1.038. The INR showed an odds-ratio of 2.455 for need for 5 minutes MC (NS). Significant correlations were found between the need for 5 minutes MC and medication with acetylsalicylic acid (p = .01), clopidogrel (p < .01), and abciximab (p < .001). CONCLUSION: ExoSeal vascular closure of antegrade femoral punctures is safe and effective with a low complication rate. Two minutes of MC are sufficient to achieve hemostasis in the majority of cases. However, in patients on antiplatelet therapy, especially after abciximab, the authors advocate prolonging MC to 5 minutes.


Assuntos
Artéria Femoral/cirurgia , Hemostasia/fisiologia , Técnicas Hemostáticas/instrumentação , Punções/instrumentação , Dispositivos de Oclusão Vascular , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Resultado do Tratamento
10.
Arch Soc Esp Oftalmol ; 88(2): 56-63, 2013 Feb.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-23433193

RESUMO

OBJECTIVE: To describe the visual outcome of patients who underwent Boston type 1 keratoprosthesis (KPro1) implantation, and describe serious sight-threatening post-operative complications. METHODS: We performed an analysis of the clinical records of all patients who underwent Boston keratoprosthesis implantation (BKI)in our institution from May 2006 to February 2011. RESULTS: A total of 41 eyes of 37 patients were included in the final analysis, of whom 22 (59.45%) were male and 15 were (40.54%) female. The mean age was 56.44 years (range 2-90). The most frequent diagnoses were bullous keratopathy, autoimmune diseases, such as Stevens-Johnson syndrome (SJS)/Lyell syndrome (LS), and aniridic keratopathy. The mean number of previous keratoplasties (PK) was 2.36 (range 0-8), the mean number of previous non-PK surgeries was 1.58 (range 0-9). The mean follow-up time was 22.17 months (range 3-46). The mean best corrected visual acuity (BCVA) logMAR before surgery was 2.05 (range 1.10-2.52), and the mean best corrected visual acuity achieved after surgery was 1.16 (range 0.08- 2.70). The most frequent complication was the formation of retroprosthetic membrane (RPM) which appeared in 22 (53.65%) eyes. Of these, 6 (27.27%) appeared after another surgery. Fourteen (63.63%) RPM required treatment, an average of 1.71 (range 1-4) laser YAG applications were performed, and surgical membranectomy was performed in 3 patients. Eleven (26.82%) eyes showed chorioretinal adhesion problems, 6 (14.63%) of which occurred after follow-up of BKI surgery. Infectious complications occurred in 7 (17.07%) cases; 2 (4.87%) patients had infectious keratitis and 5 (12.19%) endophthalmitis. CONCLUSIONS: Visual function improved in most patients. Those with prior multiple ocular surgeries and alterations of systemic immunity such as SJS, LS, and diabetes mellitus are at increased risk for serious sight-threatening complications, such as RPM, chorioretinal detachment and infection. Nevertheless, we consider KPro as an effective alternative in patients with multiple ocular pathology and imminent risk of rejection of a new KP.


Assuntos
Transplante de Córnea , Próteses e Implantes/efeitos adversos , Transtornos da Visão/etiologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Criança , Pré-Escolar , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Próteses e Implantes/classificação , Desenho de Prótese , Estudos Retrospectivos , Resultado do Tratamento , Adulto Jovem
11.
Gait Posture ; 35(3): 452-7, 2012 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22154114

RESUMO

Defined as the transient state between standing and walking, gait initiation is negatively affected in Parkinson's disease (PD), which often results in significant disability. Although deep brain stimulation (DBS) is the most common surgical procedure for PD, the long-term effects of DBS on gait initiation are not well studied. The present study evaluated the long-term effects of subthalamic nucleus (STN) DBS on the preparation phase of gait initiation using principal component (PC) analysis. Six patients with PD who had undergone STN DBS and 24 healthy control subjects were evaluated. PD subjects were assessed 11.3±10.3 (P1) and 78.9±10.6 (P2) months after surgery. PD subjects were tested with STN DBS in two conditions: without medication and with medication. PC analysis was applied separately for the vertical, anterior-posterior and medial-lateral components of ground reaction force (GRF) recorded during gait initiation. Three PC scores were chosen by the scree test for each GRF component and all these PC scores were used for calculating a standard distance between healthy controls and PD subjects. The Friedman test showed a significant difference in standard distance among conditions (P=0.004), with the post-hoc test recognizing differences among P1 conditions and P2 medication-on condition. The eigenvector loading factors pointed to major differences between PD conditions surrounding the maximum amplitude of vertical and anterior-posterior GRF. For the studied sample, all distances increased in the follow-up evaluation (P2) with and without medications, indicating a worsening in gait initiation after seven years.


Assuntos
Estimulação Encefálica Profunda/métodos , Transtornos Neurológicos da Marcha/fisiopatologia , Marcha/fisiologia , Doença de Parkinson/terapia , Tempo de Reação/fisiologia , Adaptação Fisiológica , Adulto , Fatores Etários , Estudos de Casos e Controles , Feminino , Transtornos Neurológicos da Marcha/etiologia , Transtornos Neurológicos da Marcha/reabilitação , Humanos , Masculino , Pessoa de Meia-Idade , Doença de Parkinson/complicações , Doença de Parkinson/diagnóstico , Doença de Parkinson/reabilitação , Equilíbrio Postural/fisiologia , Valores de Referência , Medição de Risco , Índice de Gravidade de Doença , Fatores Sexuais , Estatísticas não Paramétricas , Núcleo Subtalâmico , Análise e Desempenho de Tarefas , Tempo
12.
Br J Ophthalmol ; 96(4): 503-7, 2012 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-21873314

RESUMO

BACKGROUND: To develop and assess the technical validity of new computer-aided diagnostic software (CAD) for automated analyses of optical coherence tomography (OCT) images for the purpose of screening for neovascular age-related macular degeneration. METHODS: Artificial visual techniques were used to develop the CAD in two steps: normalisation and feature vector extraction from OCT images; and training and classification by means of decision trees. Technical validation was performed by a retrospective study design based on OCT images randomly extracted from clinical charts. Images were classified as normal or abnormal to serve for screening purposes. Sensitivity, specificity, positive predictive values and negative predictive values were obtained. RESULTS: The CAD was able to quantify image information by working in the perceptually uniform hue-saturation-value colour space. Particle swarm optimisation with Haar-like features is suitable to reveal structural features in normal and abnormal OCT images. Decision trees were useful to characterise normal and abnormal images using feature vectors obtained from descriptive statistics of detected structures. The sensitivity of the CAD was 96% and the specificity 92%. CONCLUSIONS: This new CAD for automated analysis of OCT images offers adequate sensitivity and specificity to distinguish normal OCT images from those showing potential neovascular age-related macular degeneration. These results will enable its clinical validation and a subsequent cost-effectiveness assessment to be made before recommendations are made for population-screening purposes.


Assuntos
Diagnóstico por Computador/métodos , Macula Lutea/patologia , Degeneração Macular/diagnóstico , Programas de Rastreamento/métodos , Tomografia de Coerência Óptica , Idoso , Diagnóstico Diferencial , Feminino , Humanos , Processamento de Imagem Assistida por Computador , Masculino , Pessoa de Meia-Idade , Projetos Piloto , Valor Preditivo dos Testes , Reprodutibilidade dos Testes
13.
Arch Soc Esp Oftalmol ; 85(9): 294-309, 2010 Sep.
Artigo em Espanhol | MEDLINE | ID: mdl-21167436

RESUMO

PURPOSE: A guidelines for the management of retinal vein occlusion is presented. This is necessary because at this moment several therapeutic alternatives have been developed although their role is not yet sufficiently defined. METHODS: Review of the literature for evidence published up to date. Relevant literature was identified and the level of evidence graded. Evidence was then assessed for consistency, applicability and clinical impact. The information was contrasted with those guides published in other countries. RESULTS: Taking into account the different options of treatment that are currently used, several modes of action are suggested. The role of the various complementary examinations are discussed and it is recommended that criteria for the treatment are based on clinical, angiographic, and tomographic findings. CONCLUSIONS: Although there is no overall consensus, these guidelines promote a good standard of clinical practise and provide an update of the management of retinal vein occlusion.


Assuntos
Oclusão da Veia Retiniana/terapia , Corticosteroides/uso terapêutico , Idoso , Idoso de 80 Anos ou mais , Algoritmos , Inibidores da Angiogênese/uso terapêutico , Anticorpos Monoclonais/uso terapêutico , Anticorpos Monoclonais Humanizados , Bevacizumab , Doenças Cardiovasculares/complicações , Retinopatia Diabética/diagnóstico , Retinopatia Diabética/terapia , Medicina Baseada em Evidências , Angiofluoresceinografia , Glaucoma de Ângulo Aberto/complicações , Fármacos Hematológicos/uso terapêutico , Humanos , Fotocoagulação a Laser , Fotocoagulação , Edema Macular/complicações , Edema Macular/cirurgia , Edema Macular/terapia , Pessoa de Meia-Idade , Oclusão da Veia Retiniana/diagnóstico , Oclusão da Veia Retiniana/tratamento farmacológico , Oclusão da Veia Retiniana/etiologia , Oclusão da Veia Retiniana/fisiopatologia , Oclusão da Veia Retiniana/cirurgia , Fatores de Risco , Trombofilia/complicações , Tomografia de Coerência Óptica
14.
Artigo em Inglês | MEDLINE | ID: mdl-21096853

RESUMO

This study evaluated the long-term effects of deep brain stimulation of the subthalamic nucleus (DBS-STN) on gait initiation. Six Parkinson's disease (PD) patients who had undergone DBS-STN and 31 control subjects were evaluated. PD subjects were assessed at two different time periods: 11.3 ± 10.3 (P1) and 78.9 ± 10.6 (P2) months after surgery. Subjects under stimulation were tested in two conditions: without medication and with medication. Principal components (PC) analysis was separately applied on vertical, anterior-posterior and medial-lateral ground reaction force (GRF) from gait initiation, during the anticipatory postural adjustment (APA) phase. Three PC scores were chosen by the scree test for each GRF component. The higher loading factors pointed to major differences between controls and PD patients on maximum APA amplitude for vertical and anterior-posterior GRF. Friedman test showed a significant difference in standard distance among conditions (P = 0.006), with the post-hoc test recognizing differences only between P1 and P2 in the medication-on condition. All distances increased in the follow-up evaluation (P2), when considering the same medication condition, indicating a worsening in gait initiation after 7 years of follow-up.


Assuntos
Estimulação Encefálica Profunda/efeitos adversos , Transtornos Neurológicos da Marcha/etiologia , Transtornos Neurológicos da Marcha/fisiopatologia , Marcha , Doença de Parkinson/fisiopatologia , Doença de Parkinson/reabilitação , Feminino , Seguimentos , Transtornos Neurológicos da Marcha/diagnóstico , Humanos , Masculino , Pessoa de Meia-Idade , Doença de Parkinson/complicações , Resultado do Tratamento
15.
Braz. j. med. biol. res ; 42(7): 665-673, July 2009. ilus, tab, graf
Artigo em Inglês | LILACS | ID: lil-517794

RESUMO

Even though frequency analysis of body sway is widely applied in clinical studies, the lack of standardized procedures concerning power spectrum estimation may provide unreliable descriptors. Stabilometric tests were applied to 35 subjects (20-51 years, 54-95 kg, 1.6-1.9 m) and the power spectral density function was estimated for the anterior-posterior center of pressure time series. The median frequency was compared between power spectra estimated according to signal partitioning, sampling rate, test duration, and detrending methods. The median frequency reliability for different test durations was assessed using the intraclass correlation coefficient. When increasing number of segments, shortening test duration or applying linear detrending, the median frequency values increased significantly up to 137%. Even the shortest test duration provided reliable estimates as observed with the intraclass coefficient (0.74-0.89 confidence interval for a single 20-s test). Clinical assessment of balance may benefit from a standardized protocol for center of pressure spectral analysis that provides an adequate relationship between resolution and variance. An algorithm to estimate center of pressure power density spectrum is also proposed.


Assuntos
Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Adulto Jovem , Pressão , Equilíbrio Postural/fisiologia , Postura/fisiologia , Algoritmos , Análise de Fourier , Adulto Jovem
16.
Braz. j. med. biol. res ; 40(2): 199-208, Feb. 2007. tab, graf
Artigo em Inglês | LILACS | ID: lil-440495

RESUMO

Increased heart rate variability (HRV) and high-frequency content of the terminal region of the ventricular activation of signal-averaged ECG (SAECG) have been reported in athletes. The present study investigates HRV and SAECG parameters as predictors of maximal aerobic power (VO2max) in athletes. HRV, SAECG and VO2max were determined in 18 high-performance long-distance (25 ± 6 years; 17 males) runners 24 h after a training session. Clinical visits, ECG and VO2max determination were scheduled for all athletes during thew training period. A group of 18 untrained healthy volunteers matched for age, gender, and body surface area was included as controls. SAECG was acquired in the resting supine position for 15 min and processed to extract average RR interval (Mean-RR) and root mean squared standard deviation (RMSSD) of the difference of two consecutive normal RR intervals. SAECG variables analyzed in the vector magnitude with 40-250 Hz band-pass bi-directional filtering were: total and 40-æV terminal (LAS40) duration of ventricular activation, RMS voltage of total (RMST) and of the 40-ms terminal region of ventricular activation. Linear and multivariate stepwise logistic regressions oriented by inter-group comparisons were adjusted in significant variables in order to predict VO2max, with a P < 0.05 considered to be significant. VO2max correlated significantly (P < 0.05) with RMST (r = 0.77), Mean-RR (r = 0.62), RMSSD (r = 0.47), and LAS40 (r = -0.39). RMST was the independent predictor of VO2max. In athletes, HRV and high-frequency components of the SAECG correlate with VO2max and the high-frequency content of SAECG is an independent predictor of VO2max.


Assuntos
Humanos , Masculino , Feminino , Adulto , Frequência Cardíaca/fisiologia , Consumo de Oxigênio/fisiologia , Resistência Física/fisiologia , Corrida/fisiologia , Estudos de Casos e Controles , Eletrocardiografia/métodos , Modelos Teóricos , Valor Preditivo dos Testes , Processamento de Sinais Assistido por Computador
17.
Rev Neurol ; 44(2): 92-4, 2007.
Artigo em Espanhol | MEDLINE | ID: mdl-17236148

RESUMO

AIM: To report a case of cerebral gas embolism secondary to the withdrawal of a central venous line in a patient who had recently undergone abdominal surgery. CASE REPORT: An 82-year-old male who suddenly presented myoclonias in the right upper extremity and a sharp drop in the level of consciousness. A computerised tomography (CT) scan revealed air bubbles in the intracranial circulatory system and associated infarction in the right hemisphere. The patient's clinical progression was poor and he died some days later. CONCLUSIONS: Cerebral gas embolism can be diagnosed using a CT scan of the head if it is performed immediately after the entrance of air into the bloodstream inside the brain. In later phases, findings are unspecific and difficult to distinguish from ischaemic infarction or from diffuse leukoencephalopathy. Treatment is based on supportive measures and, in some cases, hyperbaric oxygen, although their true effectiveness is a controversial issue. Cerebral gas embolism is a potentially fatal and avoidable complication in patients with a central venous line or other iatrogenic procedures that can allow air to enter the arterial or venous circulatory systems.


Assuntos
Cateterismo Venoso Central , Remoção de Dispositivo/efeitos adversos , Embolia Aérea/etiologia , Embolia Intracraniana/etiologia , Complicações Pós-Operatórias/etiologia , Idoso de 80 Anos ou mais , Embolia Aérea/diagnóstico por imagem , Embolia Aérea/prevenção & controle , Evolução Fatal , Cálculos Biliares/complicações , Humanos , Íleus/etiologia , Íleus/cirurgia , Embolia Intracraniana/diagnóstico por imagem , Masculino , Complicações Pós-Operatórias/diagnóstico por imagem , Tomografia Computadorizada por Raios X
18.
Parasitol Res ; 94(6): 468-70, 2004 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-15538628

RESUMO

Information on parasites of vertebrates living in terrestrial ecosystems as sentinels for heavy metal environmental pollution is scarce. The aim of the present study was to assess the concentration of cadmium and lead using the model Apodemus sylvaticus/Gallegoides arfaai in order to test the potential suitability of G. arfaai as a sentinel organism for lead and cadmium under natural field conditions. Samples of 15 A. sylvaticus as well as whole specimens of G. arfaai were analysed for both elements by inductively coupled plasma mass spectrometry. The level of cadmium in G. arfaai was always much lower than in the tissues of A. sylvaticus. Contrarily, values for lead in G. arfaai were found to be 6, 20 and 24-fold higher than in the kidney, liver and muscle of A. sylvaticus. We propose the model A. sylvaticus/G. arfaai as a promising bioindication system to evaluate environmental lead exposure in terrestrial habitats, especially for non-urban areas.


Assuntos
Biomarcadores/análise , Cádmio/análise , Cestoides/química , Chumbo/análise , Muridae/metabolismo , Doenças dos Roedores/parasitologia , Animais , Infecções por Cestoides/parasitologia , Infecções por Cestoides/veterinária , Exposição Ambiental , Monitoramento Ambiental/métodos , Muridae/parasitologia , Poluentes do Solo/análise , Espanha
20.
Actas Urol Esp ; 28(3): 245-8, 2004 Mar.
Artigo em Espanhol | MEDLINE | ID: mdl-15141424

RESUMO

Contribution of one case of paratesticular rhabdomyosarcoma in a 10-years old male patient. Following radical orchiectomy it was classified as Group Ia (Intergroup Rhabdomyosarcoma Study). Treatment was completed with 9 polychemotherapy courses of Ifosfamide, Vincristine and Actinomicine D. The patient was disease-free 6 months after the treatment.


Assuntos
Rabdomiossarcoma , Neoplasias Testiculares , Criança , Humanos , Masculino , Rabdomiossarcoma/diagnóstico , Rabdomiossarcoma/terapia , Neoplasias Testiculares/diagnóstico , Neoplasias Testiculares/terapia
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