Quality of Telehealth Services in Primary Care in the State of Minas Gerais.

Objective: Telemedicine is seen as an important tool to face contemporary health challenges. The factors that help improve quality in these services must be studied. The objective of this work was to assess the quality of telehealth primary care services offered in the State of Minas Gerais -Brazil, based on the ISO 13131 standard. Methods: This cross-sectional analytical study with a quantitative approach was conducted in the cities in the state of Minas Gerais that use telehealth services. A stratified sample composed of 385 cities was used. A questionnaire, based on ISO 13131 on the quality of telehealth services, was prepared, used, and verified for its consistency. Quality levels in telehealth were built from the data. To analyze the quality of care, data from the Ministry of Health's quality improvement program were used, involving 366 surveyed cities. Logistic regression was performed to verify the association between quality of telehealth and quality of care. Results: The research identified that 64% of the cities had records of telehealth activities, and 51% of cities had high quality telehealth services. There was no association between quality of telehealth and quality of care; only the dimensions of Quality and Risk Management were associated with quality of care. Conclusion: The developed instrument enabled the quality of telehealth actions to be verified. The State of Minas Gerais has high-quality telehealth services.

Webpalestra - Eletrocardiograma Normal

1-Revisar Eletrofisiologia Cardíaca Compreender o ECG - Quanto aos valores - Quanto à técnica - Quanto às derivações 2-Aprender: - Frequência - Ritmo - Eixo

Evaluating the experience of training through videoconferences in primary care.

INTRODUCTION: The technological innovations that are a part of organizational realities allow for new possibilities in social processes. In Belo Horizonte, Brazil, the municipality established a system of training through videoconferences in primary care connecting professors and professionals from primary care units to discuss assistance problems in medicine, nursing, and dentistry. OBJECTIVE: An evaluation of the professionals' perception regarding the system of training through videoconferences in primary care. METHODS: The study involved 148 basic health units in the city of Belo Horizonte. A structured survey was applied to a sample of 373 people who used the system in 2008. RESULTS: According to the survey data, 58.6% of the professionals participated in more than three videoconferences in 6 months, whereas 30.3% did not participate in any type of face-to-face training activity; 98% considered the topics interesting and 70% affirmed that the topics discussed helped them when performing assistance tasks. Other aspects that were evaluated as excellent or good include: 36.6% approved the sound quality of the videoconferences, 46.4% approved the image quality, and 43.9% approved the system stability. These results highlight some problems. Nevertheless, 90.2% evaluated the telehealth project as being excellent or good and 96.7% would recommend the implementation of the project in other units. CONCLUSIONS: The system of educational training videoconferences can contribute to improving the competence of primary healthcare attention.

Low doses of simvastatin therapy ameliorate cardiac inflammatory remodeling in Trypanosoma cruzi-infected dogs.

Chagas cardiomyopathy remodeling is based on the presence of Trypanosoma cruzi in heart tissue and on the complex inflammatory response leading to a myocardium fibrosis and alterations in conductive and functional heart parameters. This study aims to evaluate Simvastatin on the inflammatory response and heart functionality using dogs infected with Y strain of T. cruzi. Animals were treated daily with Simvastatin (20 mg) for 6 months and submitted to clinical and immunopathological evaluations. Simvastatin reduced heart expression and serum levels of interferon-γ (IFN-γ) and tumor necrosis factor-α (TNF-α) but not interleukin-10 (IL-10), possibly favoring blood parasitism but reducing inflammation and fibrosis in the left ventricle and right atrium. Simvastatin also ameliorated ejection fraction, diastolic diameter, and mass index of the left ventricle 6 months after infection. This study suggests that more investigation should be performed on the use of statins as a prophylactic therapy against cardiac remodeling because of their effects on modifying immune response and benefiting functional parameters in dogs with T. cruzi-induced ventricular dysfunctions.

Active orthostatic stress and respiratory sinus arrhythmia in patients with Chagas' disease with preserved left ventricular global systolic function.

OBJECTIVE: To assess the use of the active orthostatic stress test for detecting vagal dysfunction in patients with Chagas' disease with preserved overall systolic function, and to compare it with the respiratory sinus arrhythmia test. METHODS: Sixty-one chagasic patients (Ch) and 38 nonchagasic (NCh) patients with no significant evidence of heart disease or systemic diseases underwent Doppler echocardiography and autonomic function tests. The respiratory sinus arrhythmia test was performed through electrocardiographic recording during deep breathing, at 6 ripm, calculating the E:I ratio (mean ratio between the longest expiratory RR interval and the shortest inspiratory RR interval at each cycle). The electrocardiogram was recorded during the act of standing and during the following 30 seconds (active orthostatic stress test), and the max RR/min RR ratio (the longest and shortest RR intervals right after change in posture) was calculated. The indices were adjusted for significant covariables. RESULTS: The max RR/min RR ratio (NCh: 1.52 [1.44-1.74] x Ch: 1.43 [1.33-1.51], P < 0.001) and the E:I ratio (NCh: 1.38 +/- 0.02 x Ch: 1.25 +/- 0.02, P<0.001) were lower among chagasic patients. A high correlation was observed between the adjusted max RR/min RR ratio and E:I ratio (r = 0.628, P < 0.001), but neither significantly correlated with left ventricular ejection fraction. CONCLUSION: Chagasic patients with preserved left ventricular overall systolic function showed a significant reduction in the vagal indices obtained on short-lasting tests, as compared with normal controls. The active orthostatic stress test that, showed a good correlation with the respiratory sinus arrhythmia maneuver, constituted a valid option for the outpatient care assessment of vagal control.

Active orthostatic stress and respiratory sinus arrhythmia in patients with Chagas' disease with preserved left ventricular global systolic function / Estresse ortostático ativo e arritmia sinusal respiratória em chagásicos com função sistólica global do ventrículo esquerdo preservada

OBJETIVO: Avaliar a utilização do teste de estresse ostostático ativo na detecção de disfunção vagal em chagásicos com função sistólica global preservada, comparando-o ao teste da arritmia sinusal respiratória. MÉTODO: Foram selecionados 61 chagásicos (Ch) e 38 não-chagásicos (NCh) sem evidências significativas de cardiopatia ou doenças sistêmicas, submetidos ao ecodopplercardiograma e às provas autonômicas. O teste da arritmia sinusal respiratória foi realizado através do registro eletrocardiográfico enquanto o paciente respirava profundamente, a 6 irpm, calculando-se a razão E:I (média das razões entre os maiores intervalos RR expiratórios e os menores RR inspiratórios a cada ciclo). O eletrocardiograma foi registrado enquanto o paciente se levantava e nos 30s seguintes (teste do estresse ortostático ativo), calculando-se a razão RR máx./RR min (maior e menor intervalo RR logo após a mudança postural). Os índices foram ajustados para covariáveis significativas. RESULTADOS: A razão RR max:min (NCh: 1,52 [1,44-1,74] x Ch: 1,43 [1,33-1,51], p < 0,001) e a razão E:I (NCh: 1,38±0,02 x Ch: 1,25±0,02, p<0,001) foram menores entre os chagásicos. Houve elevada correlação entre a razão RR max:min e a razão E:I ajustadas (r = 0,628, p < 0,001), mas ambas não se correlacionaram significativamente com a fração de ejeção do ventrículo esquerdo. CONCLUSAO: Chagásicos com função sistólica global do ventrículo esquerdo preservada apresentam redução significativa de índices vagais obtidos por provas curtas, quando comparados a controles normais. O teste de estresse ortostático ativo apresentou boa correlação com a manobra de arritmia sinusal respiratória, constituindo-se opção válida na avaliação ambulatorial do controle vagal.

Avaliação da prevalência de hipertensão pulmonar na esclerose sistêmica / Prevalence of pulmonary hypertension in systemic sclerosis

Objetivo: Avaliar a prevalência da hipertensão pulmonar (HP) em pacientes com diagnóstico de esclerose sistêmica (ES) em acompanhamento num serviço universitário terciário. Métodos: Foram avaliados 57 pacientes com ES, em acompanhamento no Serviço de Reumatologia do HC-UFMG, através de exame clínico dirigido ao aparelho cardiorrespiratório, testes de função pulmonar e ecodopplercardiograma (ECO). Foram considerados critérios diagnósticos para HP: pressão sistólica de artéria pulmonar (PSAP) maior e igual 40mmHg e/ou presença de outros sinais diretos ou indiretos de HP identificados durante o ECO. Resultados: Dezesseis pacientes (28 por cento) apresentaram diagnóstico de HP, sendo 13 com PSAP maior e igual 40 mmHg e 3 com sinais indiretos de HP; 8 pacientes apresentaram HP isolada e 8 HP secundária à fibrose pulmonar. Em 9 pacientes havia sinais sugestivos de cor pulmonale ao ECO. Destes pacientes, 6 apresentaram PSAP maior e igual 40mmHg e 3 entre 35 e 40mmHg; dentre eles, 1 era assintomático e 8 apresentavam sinais sugestivos de HP ao exame físico. Dentre as variáveis clínicas e laboratoriais observadas, somente encontramos correlação de HP com a velocidade de hemossedimentação (VHS) elevada (p = 0,004). Conclusões: A prevalência de HP associada à ES encontrada neste estudo foi semelhante a outras da literatura, apesar das limitações nesta comparação. A investigação da HP através do ECO é uma prática acessível, de grande auxílio para o diagnóstico precoce do acometimento vascular pulmonar. No entanto, é necessário que seja revisto o porto de corte da PSAP medida ao ECO para diagnóstico de HP relacionada à ES.

Cardiovascular function in elderly patients with chronic chagasic cardiopathy.

The objective of this work was to verify the degree and type of heart damage of elderly chagasic patients seen at an outpatient referral center and to compare them with the changes found in young chagasic patients with a similar degree of heart damage. Elderly and young patients without advanced cardiopathy presented good functional behavior. Elderly patients with advanced cardiopathy had more ventricular premature beats (VPB) in 24 h and less functional capacity in the exercise test than young patients of the same subgroup. There was a higher occurrence of effort-induced VPB and a lower prevalence of severe forms in elderly men, suggesting that Chagas' disease may have a worse evolution in males. The association of cardiac damage characteristic of aging with the secondary damage due to Chagas' disease could explain the greater functional damage found in elderly chagasic patients. Thus, it appears that the physiopathological components of Chagas' disease do have an influence on the clinical course of cardiopathy in the elderly population.

Cardiovascular function in elderly patients with chronic chagasic cardiopathy

The objective of this work was to verify the degree and type of heart damage of elderly chagasic patients seen at an outpatient referral center and to compare them with the changes found in young chagasic patients with a similar degree of heart damage. Elderly and young patients without advanced cardiopathy presented good functional behavior. Elderly patients with advanced cardiopathy had more ventricular premature beats (VPB) in 24 h and less functional capacity in the exercise test than young patients of the same subgroup. There was a higher occurrence of effort-induced VPB and a lower prevalence of severe forms in elderly men, suggesting that Chagas' disease may have a worse evolution in males. The association of cardiac damage characteristic of aging with the secondary damage due to Chagas' disease could explain the greater functional damage found in elderly chagasic patients. Thus, it appears that the physiopathological components of Chagas' disease do have an influence on the clinical course of cardiopathy in the elderly population