Predictors of outcomes after correction of acute type a aortic dissection under moderate hypothermic circulatory arrest and antegrade cerebral perfusion

Abstract Introduction: Hypothermic circulatory arrest is widely used for correction of acute type A aortic dissection pathology. We present our experience of 45 consecutive patients operated in our unit with bilateral antegrade cerebral perfusion and moderate hypothermic circulatory arrest. Methods: Between January 2011 and April 2015, 45 consecutive patients were admitted for acute type A aortic dissection and operated emergently under moderate hypothermic circulatory arrest and bilateral antegrade cerebral perfusion. Results: Mean age was 58±11.4 years old. Median circulatory arrest time was 41.5 (30-54) minutes while the 30-day mortality and postoperative permanent neurological deficits rates were 6.7% and 13.3%, respectively. Unadjusted analysis revealed that the factors associated with 30-day mortality were: preoperative hemodynamic instability (OR: 14.8, 95% CI: 2.41, 90.6, P=0.004); and postoperative requirement for open sternum management (OR: 5.0, 95% CI: 1.041, 24.02, P=0.044) while preoperative hemodynamic instability (OR: 8.8, 95% CI: 1.41, 54.9, P=0.02) and postoperative sepsis or multiple organ dysfunction (OR: 13.6, 95% CI: 2.1, 89.9, P=0.007) were correlated with neurological dysfunction. By multivariable logistic regression analysis, postoperative sepsis and multiple organ dysfunction independently predicted (OR: 15.9, 95% CI: 1.05, 96.4, P=0.045) the incidence of severe postoperative neurological complication. During median follow-up of 6 (2-12) months, the survival rate was 86.7%. Conclusion: Bilateral antegrade cerebral perfusion and direct carotid perfusion for cardiopulmonary bypass, in the surgical treatment for correction of acute aortic dissection type A, is a valuable technique with low 30-day mortality rate. However, postoperative severe neurological dysfunctions remain an issue that warrants further research.

Quality of life of people living with HIV/AIDS treated by the specialized service in Vitória-ES, Brazil / Qualidade de vida de pessoas que vivem com HIV/AIDS assistidas no serviço especializado em Vitória (ES), Brasil

The aim of this study is to establish the factors that influence the quality of life of people living with HIV/AIDS being treated at a specialized public service. The participants answered the questionnaire on sociodemographic conditions, issues related to HIV and daily habits. The quality of life was analyzed using the HIV/AIDS-targeted quality of life (HAT-QoL) instrument with 42 items divided into 9 fields: General Activity, Sexual Activity, Confidentiality Concerns, Health Concerns, Financial Concerns, HIV Awareness, Satisfaction with Life, Issues related to Medication and Trust in the Physician. Bivariate and multiple linear regressions were performed. Of the participants, 53.1% were women and had a mean age of 42 years. In analyzing the quality of life, the HAT-QoL domain with the lowest average was Financial Concerns (39.4), followed by Confidentiality Concerns (43.2), Sexual Activity (55.2) and Health Concerns (62. 88). There was an association between the variables: not being gainfully employed (p < 0.001), being mulatto or black (p = 0.045) and alcohol consumption (p = 0.041) with the worst quality of life scores. Inadequate socioeconomic and health conditions had a negative impact on the quality of life of people with HIV/AIDS.

O objetivo do presente estudo é verificar os fatores que influenciam na qualidade de vida das pessoas que vivem com HIV/AIDS assistidas no serviço especializado. Os entrevistados responderam os questionários sobre condições sociodemográficas, aspectos relacionados ao HIV e hábitos. A qualidade de vida foi analisada por meio do instrumento HAT-QoL, com 42 itens divididos em nove domínios: Atividade Geral, Atividade Sexual, Preocupações com Sigilo, Preocupação com a Saúde, Preocupação Financeira, Conscientização sobre o HIV, Satisfação com a Vida, Questões relativas à medicação e Confiança no médico. Análises bivariadas e regressão linear múltipla foram realizadas. Dos entrevistados, 53,1% eram mulheres e tinham média de idade de 42 anos. Na análise da qualidade de vida, o domínio do HAT-QoL com menor média foi Preocupação financeira (39,4), seguido de Preocupação com sigilo (43,2), Atividades sexuais (55,2) e Preocupação com a saúde (62,88). Houve associação entre as variáveis não ter vínculo trabalhista (p < 0,001), ser pardo ou negro (p = 0,045) e consumir bebida alcoólica (p = 0,041), com piores escores da qualidade de vida. Condições socioeconômicas e de saúde inadequadas apresentaram impacto negativo na qualidade de vida das pessoas com HIV/AIDS.

Cambios en la hemodinamia cerebral en consumidores crónicos de paco y cocaína: estudio de casos y controles / [Changes in cerebral hemodynamics in chronic users of \"PACO\" and cocaine: case-control study].

OBJECTIVE: To assess if there are changes in brain hemodynamics evaluated by means of transcranial doppler's flow velocity, pulsatile index and cerebral perfusion pressure, between cocaine chronic abusers and healthy volunteers. METHOD: Prospective, case and control, observational study. Sex, age, user history, vital signs and transcranial doppler findings.Statistical analysis was performed by means of normality test, Wilcoxon's test for non parametric samples and T Student test. RESULTS: Fifty-three abusers and 35 healthy volunteers were studied. Statistical differences were found for a diminish in age(p=0.008) and cerebral perfusion pressure in all cerebral arteries (p

Brain SPECT in mesial temporal lobe epilepsy: comparison between visual analysis and SPM / SPECT cerebral na epilepsia de lobo temporal mesial: comparação entre análise visual e SPM

OBJECTIVE: To compare the accuracy of SPM and visual analysis of brain SPECT in patients with mesial temporal lobe epilepsy (MTLE). METHOD: Interictal and ictal SPECTs of 22 patients with MTLE were performed. Visual analysis were performed in interictal (VISUAL(inter)) and ictal (VISUAL(ictal/inter)) studies. SPM analysis consisted of comparing interictal (SPM(inter)) and ictal SPECTs (SPM(ictal)) of each patient to control group and by comparing perfusion of temporal lobes in ictal and interictal studies among themselves (SPM(ictal/inter)). RESULTS: For detection of the epileptogenic focus, the sensitivities were as follows: VISUAL(inter)=68 percent; VISUAL(ictal/inter)=100 percent; SPM(inter)=45 percent; SPM(ictal)=64 percent and SPM(ictal/inter)=77 percent. SPM was able to detect more areas of hyperperfusion and hypoperfusion. CONCLUSION: SPM did not improve the sensitivity to detect epileptogenic focus. However, SPM detected different regions of hypoperfusion and hyperperfusion and is therefore a helpful tool for better understand pathophysiology of seizures in MTLE.

OBJETIVO: Comparar a acurácia do SPM com a análise visual na detecção do foco epileptogênico e alterações perfusionais à distância no SPECT cerebral. MÉTODO: Foram realizados os SPECTs ictal e interictal de 22 pacientes com epilepsia de lobo temporal mesial (ELTM). A análise visual foi realizada nos estudos interictal (VISUAL(inter)) e ictal (VISUAL(ictal/inter)). Na análise com SPM foi comparado o estudo interictal (SPM(inter)) e ictal (SPM(ictal)) de cada paciente com o grupo controle e comparou-se a perfusão dos lobos temporais entre os estudos ictal e interictal (SPM(ictal/inter)). RESULTADOS: Para a detecção do foco epileptogênico, as sensibilidades foram as seguintes: VISUAL(inter)=68 por cento; VISUAL(ictal/inter)=100 por cento; SPM(inter)=45 por cento; SPM(ictal)=64 por cento and SPM(ictal/inter)=77 por cento. O SPM foi capaz de detectar mais áreas de hiperperfusão e hipoperfusão. CONCLUSÃO: O SPM não aumentou a sensibilidade na detecção do foco epileptogênico. Entretanto, o SPM detectou diferentes regiões de hipoperfusão e hiperperfusão e portanto, ele pode ser uma ferramenta de ajuda para se melhor entender a patofisiologia das crises na ELTM.

Statistical voxel-wise analysis of ictal SPECT reveals pattern of abnormal perfusion in patients with temporal lobe epilepsy

OBJETIVO: Investigar o padrão de anormalidades perfusionais no SPECT de perfusão cerebral (SPC) ictal e interictal na epilepsia de lobo temporal (ELT). MÉTODO: Foram realizados SPCs ictal e interictal de 24 pacientes com ELT que foram analisados visualmente e com o statistical parametric mapping (SPM2). A análise estatística comparou o grupo de pacientes versus um grupo controle de 50 voluntários. RESULTADOS: Na análise do SPM não foram observadas diferenças significativas no grupo de SPC interictal. No grupo de SPC ictal o SPM revelou hiperperfusão no lobo temporal ipsilateral (foco epileptogênico) e também na região parieto-occipital contralateral, porção posterior do cíngulo ipsilateral, lobos occipitais e núcleos da base ipsilateral. O SPC ictal também mostrou áreas de hipoperfusão. CONCLUSÃO: Em uma análise de grupo do SPC ictal de pacientes com ELT, a análise baseada em voxel detecta uma rede de alteração perfusional em regiões distantes que pode ter uma função ativa na origem e propagação das crises.