Dual assessment of abnormal cardiac electrical dispersion and diastolic dysfunction for early detection of the epileptic heart condition.

BACKGROUND: People with epilepsy (PWE) are at increased risk for premature death due to many factors. Sudden unexpected death in epilepsy (SUDEP) is among the most important causes of death in these individuals and possibly, sudden cardiac death (SCD) in epilepsy is also as important. The possibility of concurrent derangement in electrical and mechanical cardiac function, which could be a marker of early cardiac involvement in PWE, has not been investigated in that population. METHODS: Electrical dispersion indices (T-wave peak to T-wave end, TpTe; QT dispersion, QTd; QT interval corrected for heart rate, QTc) were analyzed in patients with pharmacoresistant temporal lobe epilepsy and compared to a control group. The electromechanical relationship between those indices and echocardiographic parameters were further assessed in PWE. RESULTS: In 19 PWE and 21 controls, we found greater TpTe and QTd in PWE (TpTe: 91.6 ± 16.4 ms vs. 65.2 ± 12.1 ms, p < 0.0001; and QTd: 45.3 ± 13.1 ms vs. 19 ± 6.2 ms, p < 0.0001, respectively). QTc was similar between PWE and controls (419.2 ± 31.4 ms vs. 435.1 ± 31.4 ms, p = 0.12). In multivariate linear regression, TpTe, QTc, and epilepsy duration were related to left ventricular mass; QTc was associated with left atrial volume; QTc, the number of seizures per month, epilepsy duration and antiseizure medication explained 81% of E/A mitral wave Doppler ratio. CONCLUSIONS: This is the first report to demonstrate concurrent electrical dispersion and diastolic dysfunction in PWE. These noninvasive biomarkers could prove useful in early detection of the "Epileptic Heart" condition.

How predictable is heart rate variability in Brazilian patients with drug-resistant mesial temporal lobe epilepsy?

This study aimed to compare heart rate variability (HRV) in patients with drug-resistant mesial temporal lobe epilepsy (MTLE) with healthy controls and to analyze their clinical and sociodemographic variables predictive for HRV. Thirty-nine consecutive patients with drug-resistant MTLE were included in the study. The control group included twenty-seven healthy participants matched by age and gender. Seven HRV indices (HR, RR, rMSSD, SDNN, LF, HF, and LF/HF) were compared between patients and controls. The clinical and sociodemographic variables independently associated with the HRV indices were identified by multiple linear regression. In comparison with controls, the patients with MTLE showed a significant reduction in RR, rMSSD, SDNN, LF, HF, and LF/HF indices (t value 1.97-5.97, p < 0.05). Multiple regression models showed that disease duration predicted 11-22% of the analyzed HRV indices. Time domain indices showed higher association with disease duration than coefficients in frequency domain. Patients with drug-resistant MTLE present cardiac autonomic tone dysfunction, showing a significant reduction in their HRV indices (RR, SDNN, rMSSD, LF, HF, and LF/HF). Disease duration has a negative association with all HRV indices. This study contributes to understanding the relationship between MTLE and the cardiac autonomic tone, with possible implications for sudden unexpected death in epilepsy.

Ultra-short heart rate variability reliability for cardiac autonomic tone assessment in mesial temporal lobe epilepsy.

Autonomic dysfunction in epilepsy is well-described. Heart rate variability (HRV) is a useful method to evaluate autonomic cardiac tone. Cardiac dysfunction may be involved in sudden unexpected death in epilepsy (SUDEP). HRV is a promising biomarker to enlighten the heart-brain axis role in SUDEP, but the required duration for a proper HRV recording in clinical routine remains unknown. This study aimed to verify the reliability of ultra-short HRV indices to evaluate cardiac autonomic tone in patients with epilepsy (PWE). Thirty-nine patients with mesial temporal lobe epilepsy (MTLE) had electrocardiogram recordings during the first day of video-EEG. Pearson's correlations were performed to evaluate the association between ultra-short HRV indices (five 1-min and five 30-s epochs) with standard time recording (5-min) and ANOVA compared the differences between mean HRV indices across epochs. Time domain (TD) indices showed higher mean r values when compared to frequency domain (FD) indices in 1-min (TD: r 0.80-0.99, FD: r 0.61-0.95) and 30-s epochs (TD: r 0.69-0.99, only high frequency: mean r values of 0.96). ANOVA evidenced that standard deviation of RR intervals and very low frequency means had at least 3 epochs significantly different for 1-min and 30-s epochs. Root mean square of the successive differences of RR intervals (rMSSD) presented higher Pearson's coefficient values and lower percentage of variation at 1-min or 30-s epochs in comparison to other HRV indices. In conclusion, rMSSD is the most reliable ultra-short HRV index for cardiac autonomic tone assessment in MTLE. The prognostic value of ultra-short HRV for cardiovascular risk evaluation in epilepsy remains to be determined in future studies.

AMPAr GluA1 Phosphorylation at Serine 845 in Limbic System Is Associated with Cardiac Autonomic Tone.

The central autonomic network, which is connected to the limbic system structures including the amygdala (AMY) and anterior hippocampus (aHIP), regulates the sympathetic and parasympathetic modulation of visceromotor, neuroendocrine, pain, and behavior manifestations during stress responses. Heart rate variability (HRV) is useful to estimate the cardiac autonomic tone. The levels of phosphorylation on the Ser831 and Ser845 sites of the GluA1 subunit of the AMPAr (P-GluA1-Ser845 and P-GluA1-Ser831) are useful markers of synaptic plasticity. The relation between synaptic plasticity in the human limbic system structures and autonomic regulation in humans is unknown. This study investigated the association between HRV and neurochemistry biomarkers of synaptic plasticity in AMY and aHIP. HRV indices were obtained from the resting state electrocardiogram of patients with drug-resistant mesial temporal lobe epilepsy (MTLE, n = 18) and the levels of P-GluA1-Ser845 and P-GluA1-Ser831 in the AMY and aHIP resected during the epilepsy surgery. A backward stepwise multiple linear regression models were used to analyze the association between HRV and synaptic plasticity biomarkers controlling for imbalances in the distribution of sociodemographic, clinical, neuroimaging, and neurosurgical variables. P-GluA1-Ser845 levels in AMY show a negative association (p < 0.05) with the 3 investigated parasympathetic autonomic HRV indices (SDNN, rMSSD, and HF) predicting 24 to 40% of their variation. The final multiple linear regression models include disease duration and levels of P-GluA1-Ser845 and predict 24 to 56% of cardiac autonomic tone variation (p < 0.01). P-GluA1-Ser845 levels in AMY and aHIP are negatively associated with the resting HRV in MTLE-HS indicating that increased synaptic efficiency in amygdala is associated with a parasympathetic cardiac autonomic tone impairment. The results suggest that specific changes in synaptic plasticity may be involved in the brain-heart axis regulation by the limbic system.

Employment status as a major determinant for lower physical activity of patients with epilepsy: A case-control study.

BACKGROUND: People with epilepsy (PWE) may have a sedentary lifestyle and less physical activity (PA) as they are often advised against engaging in sports, despite a plethora of evidence suggesting seizure control, major health and psychosocial benefits associated with PA. We aimed to investigate PWE's beliefs on PA and their level of PA compared to controls. METHODS: The Baecke questionnaire for measuring habitual PA in adults, comprising three domains (occupational PA, leisure, and locomotion), was applied in 97 consecutive PWE (96.9% with focal epilepsy, 39.2% well controlled with pharmacological treatment) and 45 healthy controls matched for gender, age, and socioeconomic characteristics. RESULTS: The total Baecke score was significantly lower in PWE than controls (7.6 ±â€¯1.5 versus 8.2 ±â€¯1.2; p < 0.01). PWE showed a significantly lower employment rate than controls (34.0% versus 73.3%; p < 0.01), and consequently lower occupational PA (p < 0.01). Physical exercise during sports time (p = 0.23) and leisure activities (p = 0.55) scores were similar between patients and controls. When PWE and controls' sociodemographic characteristics were analyzed together by multiple linear regression, 21% of the Baecke total score variation was explained by diagnosis of epilepsy (B = -0.26; p = 0.05), years of education (B = -0.35; p = 0.03), and occupational status (B = -0.41; p < 0.01). However, diagnosis of epilepsy alone explained only 4% (B = -0.64; p = 0.01) of Baecke total score variation. CONCLUSION: The level of PA in PWE is only slightly lower than in controls (8% lower score) and it may be explained by lower occupational PA, probably related to lower employment rate among PWE.

Determining factors of electrocardiographic abnormalities in patients with epilepsy: A case-control study.

Sudden unexpected death in epilepsy (SUDEP) is a major cause of mortality in young patients with epilepsy (PWE). Although its mechanisms are still poorly understood, they may include cardiorespiratory dysfunction. Standard 12-lead electrocardiograms (ECGs) were obtained from 62 consecutive patients (aged 18-66y) with a definite diagnosis of epilepsy, without seizures at the day of ECG, and 57 healthy controls matched for sex, age and body mass index (BMI). All ECGs were evaluated by a blinded board-certified cardiologist. Patients with symptomatic focal epilepsy represented 90.3% (N=56), of whom 56.4% (N=35) had temporal lobe epilepsy, with a mean duration of 22.02±14.96years of epilepsy. We observed more prolonged P-wave (p<0.0001) and PR interval (p=0.01) in patients than in controls. Additionally, longer QT intervals (p<0.01), pathologic QT dispersion (p<0.01) and left atrial overload (p<0.01) were more common in PWE. Multiple linear regression analysis evidenced age, gender and polytherapy as factors associated with altered ECG. Therefore, routine ECG should be requested in PWE, especially for males, increasing age and in polytherapy. Findings such as longer PR and QT interval, and pathologic QT dispersion, may reflect cardiac structural changes and/or autonomic nervous system dysfunction and indicate a risk for SUDEP.

Assessment of cardiovascular risk in patients with rheumatoid arthritis using the SCORE risk index.

INTRODUCTION: Rheumatoid arthritis is an autoimmune disease that causes systemic involvement and is associated with increased risk of cardiovascular disease. OBJECTIVE: To analyze the prediction index of 10-year risk of a fatal cardiovascular disease event in female RA patients versus controls. METHODS: Case-control study with analysis of 100 female patients matched for age and gender versus 100 patients in the control group. For the prediction of 10-year risk of a fatal cardiovascular disease event, the SCORE and modified SCORE (mSCORE) risk indexes were used, as suggested by EULAR, in the subgroup with two or more of the following: duration of disease ≥10 years, RF and/or anti-CCP positivity, and extra-articular manifestations. RESULTS: The prevalence of analyzed comorbidities was similar in RA patients compared with the control group (p>0.05). The means of the SCORE risk index in RA patients and in the control group were 1.99 (SD: 1.89) and 1.56 (SD: 1.87) (p=0.06), respectively. The means of mSCORE index in RA patients and in the control group were 2.84 (SD=2.86) and 1.56 (SD=1.87) (p=0.001), respectively. By using the SCORE risk index, 11% of RA patients were classified as of high risk, and with the use of mSCORE risk index, 36% were at high risk (p<0.001). CONCLUSION: The SCORE risk index is similar in both groups, but with the application of the mSCORE index, we recognized that RA patients have a higher 10-year risk of a fatal cardiovascular disease event, and this reinforces the importance of factors inherent to the disease not measured in the SCORE risk index, but considered in mSCORE risk index.

Assessment of cardiovascular risk in patients with rheumatoid arthritis using the SCORE risk index / Avaliação do risco cardiovascular de pacientes com artrite reumatoide utilizando o índice SCORE

ABSTRACT Introduction: Rheumatoid arthritis is an autoimmune disease that causes systemic involvement and is associated with increased risk of cardiovascular disease. Objective: To analyze the prediction index of 10-year risk of a fatal cardiovascular disease event in female RA patients versus controls. Methods: Case-control study with analysis of 100 female patients matched for age and gender versus 100 patients in the control group. For the prediction of 10-year risk of a fatal cardiovascular disease event, the SCORE and modified SCORE (mSCORE) risk indexes were used, as suggested by EULAR, in the subgroup with two or more of the following: duration of disease ≥10 years, RF and/or anti-CCP positivity, and extra-articular manifestations. Results: The prevalence of analyzed comorbidities was similar in RA patients compared with the control group (p > 0.05). The means of the SCORE risk index in RA patients and in the control group were 1.99 (SD: 1.89) and 1.56 (SD: 1.87) (p = 0.06), respectively. The means of mSCORE index in RA patients and in the control group were 2.84 (SD = 2.86) and 1.56 (SD = 1.87) (p = 0.001), respectively. By using the SCORE risk index, 11% of RA patients were classified as of high risk, and with the use of mSCORE risk index, 36% were at high risk (p< 0.001). Conclusion: The SCORE risk index is similar in both groups, but with the application of the mSCORE index, we recognized that RA patients have a higher 10-year risk of a fatal cardiovascular disease event, and this reinforces the importance of factors inherent to the disease not measured in the SCORE risk index, but considered in mSCORE risk index.

RESUMO Introdução: Artrite reumatoide (AR) é uma doença autoimune que determina manifestações sistêmicas e está associada a aumento do risco de evento cardiovascular. Objetivo: Analisar o índice SCORE de predição de evento cardiovascular em pacientes do gênero feminino portadores de AR comparados com controles sem a doença. Métodos: Estudo de caso-controle com análise de 100 pacientes pareadas por gênero e idade versus 100 pacientes do grupo controle. Para a predição do risco de evento cardiovascular fatal em 10 anos, usamos os índices SCORE e SCORE modificado (mScore), conforme sugerido pela Eular, no subgrupo com 2 ou mais dos seguintes: duração da doença ≥ 10 anos, positividade para fator reumatoide e/ou anti-CCP e manifestações extra-articulares. Resultados: A prevalência das comorbidades analisadas foi similar nas pacientes com AR, em comparação com o grupo controle (p > 0,05). As médias do índice SCORE foram 1,99 (DP: 1,89) e 1,56 (DP: 1,87) nas portadoras de AR e nos controles (p = 0,06), respectivamente. Com o uso do índice mScore, nas pacientes com AR foi encontrada a média de 2,84 (DP: 2,86) versus 1,56 nos controles (DP: 1,87) (p = 0,001). Ao usar o índice SCORE, 11% dos portadores de AR foram classificados como de alto risco; com o índice mScores, 36% obtiveram essa classificação (p < 0,001). Conclusões: O índice SCORE é semelhante nos dois grupos, mas com a aplicação do índice mScore identificamos que os pacientes com AR têm maior risco de evento cardiovascular fatal em 10 anos, com ênfase na importância dos fatores inerentes à doença não mensurados no índice SCORE, mas considerados no índice mScore.

Musculoskeletal system assessment in an emergency room.

OBJECTIVE: Musculoskeletal conditions have an enormous and growing impact worldwide. In spite of that, some clinicians are not confident in their own musculoskeletal examination skills. This study aimed to evaluate the prevalence of musculoskeletal symptoms in an emergency room, and the frequency of musculoskeletal physical examination description on those cases. METHODS: This was a cross-sectional study. We performed a systematic analysis of medical files at the emergency room of the University Hospital of the Federal University of Santa Catarina, Brazil, from April 24th to 30th, 2009. RESULTS: We analyzed 392 files, where 41.5% of patients were male and mean age was 38.7 ± 17.2 years-old. Sixty nine out of 392 patients (17.6%) presented with a musculoskeletal complaint. The most common musculoskeletal complaint was low back pain (33/69). Only 49.2% of patients with a musculoskeletal chief complaint had a specific physical examination registered on the files. Patients with musculoskeletal complaints had lower registrations of abdominal examination (46% versus 62%, P = 0.01) and vital signs (46% versus 66%, P = 0.002), but a higher frequency of musculoskeletal examination registration (49% versus 0.6%, P = 0.00). CONCLUSIONS: Our study confirms other observations worldwide. Musculoskeletal complaints are frequent in a emergency room setting and in spite of that it is suggested that musculoskeletal symptoms are poorly evaluated, which is probably related to an insufficient musculoskeletal education. It is essential that medical schools place more emphasis on these conditions so that young physicians will be more prepared to deal with these common diseases.

Avaliação do sistema musculoesquelético na unidade de emergência / Musculoskeletal system assessment in an emergency room

OBJETIVO: As condições musculoesqueléticas possuem um enorme e crescente impacto no mundo. A despeito disso, alguns médicos não estão confiantes em suas próprias habilidades para a realização do exame clínico musculoesquelético. Este estudo teve como objetivo avaliar a prevalência dos sintomas musculoesqueléticos em uma unidade de emergência e a frequência de descrição do exame físico musculoesquelético nesses casos. MÉTODOS: Trata-se de estudo transversal. Foi realizada uma análise sistemática das fichas de atendimento na unidade de emergência do hospital da Universidade Federal de Santa Catarina, Brasil, de 24 a 30 de abril de 2009. RESULTADOS:Foram analisadas 392 fichas de atendimento, onde 41,5 por cento dos pacientes eram do sexo masculino e a idade média de 38,7 ± 17,2 anos. Sessenta e nove dos 392 pacientes (17,6 por cento) apresentaram-se com queixa musculoesquelética. A queixa musculoesquelética mais comum foi lombalgia (33/69). Somente 49,2 por cento dos pacientes que apresentavam distúrbios musculoesqueléticos como queixa principal tiveram exame físico específico descrito nas fichas. Pacientes com queixas musculoesqueléticas tiveram menor frequência de registro de exame abdominal (46 por cento versus 62 por cento, P = 0,01) e sinais vitais (46 por cento versus 66 por cento, P = 0,00), porém maior frequência de registro do exame musculoesquelético (49 por cento versus 0,6 por cento, P = 0,00). CONCLUSÕES:Este estudo confirma outras observações em todo o mundo. Queixas musculoesqueléticas são frequentes em uma unidade de emergência e, apesar disso, sugere-se que os sintomas musculoesqueléticos são insuficientemente avaliados, o que pode estar relacionado a uma educação médica insuficiente. É fundamental que escolas médicas coloquem maior ênfase nessas condições para que jovens médicos estejam mais preparados para lidar com essas doenças comuns.

OBJECTIVE: Musculoskeletal conditions have an enormous and growing impact worldwide. In spite of that, some clinicians are not confident in their own musculoskeletal examination skills. This study aimed to evaluate the prevalence of musculoskeletal symptoms in an emergency room, and the frequency of musculoskeletal physical examination description on those cases. METHODS: This was a cross-sectional study. We performed a systematic analysis of medical files at the emergency room of the University Hospital of the Federal University of Santa Catarina, Brazil, from April 24th to 30th, 2009. RESULTS: We analyzed 392 files, where 41.5 percent of patients were male and mean age was 38.7 ± 17.2 years-old. Sixty nine out of 392 patients (17.6 percent) presented with a musculoskeletal complaint. The most common musculoskeletal complaint was low back pain (33/69). Only 49.2 percent of patients with a musculoskeletal chief complaint had a specific physical examination registered on the files. Patients with musculoskeletal complaints had lower registrations of abdominal examination (46 percent versus 62 percent, P = 0.01) and vital signs (46 percent versus 66 percent, P = 0.002), but a higher frequency of musculoskeletal examination registration (49 percent versus 0.6 percent, P = 0.00). CONCLUSIONS: Our study confirms other observations worldwide. Musculoskeletal complaints are frequent in a emergency room setting and in spite of that it is suggested that musculoskeletal symptoms are poorly evaluated, which is probably related to an insufficient musculoskeletal education. It is essential that medical schools place more emphasis on these conditions so that young physicians will be more prepared to deal with these common diseases.

[Chronic left ventricular pseudoaneurism of undetermined etiology]. / Pseudoaneurisma crônico do ventrículo esquerdo de etiologia indeterminada.

Pseudoaneurysms occur as a rare complication of the myocardial infarction, of which hemorrhagic process is contained by adherences of the visceral or parietal pericardium - or of both - preventing the development of cardiac tamponade. We report the case of a 55-year-old patient, with a chronic left ventricular pseudoaneurysm of undetermined etiology, who was submitted to a conservative treatment.

Pseudoaneurisma crônico do ventrículo esquerdo de etiologia indeterminada / Chronic left ventricular pseudoaneurism of undetermined etiology / Pseudoaneurisma crónico del ventrículo izquierdo de etiología indeterminada

Os pseudoaneurismas ocorrem como rara complicação do infarto do miocárdio, após rotura miocárdica, cujo processo hemorrágico é contido por aderências do pericárdio visceral, parietal - ou de ambos -, impedindo o desenvolvimento de tamponamento cardíaco. Relatamos o caso de um paciente de 55 anos, com pseudoaneurisma crônico do ventrículo esquerdo de etiologia indefinida, de longa evolução, que foi submetido a tratamento conservador.

Pseudoaneurysms occur as a rare complication of the myocardial infarction, of which hemorrhagic process is contained by adherences of the visceral or parietal pericardium - or of both - preventing the development of cardiac tamponade. We report the case of a 55-year-old patient, with a chronic left ventricular pseudoaneurysm of undetermined etiology, who was submitted to a conservative treatment.

Los pseudoaneurismas ocurren como rara complicación del infarto de miocardio, tras rotura miocárdica, con detención del proceso hemorrágico por las adherencias del pericardio visceral, parietal - o de ambos -, impidiendo el desarrollo de taponamiento cardiaco. Relatamos el caso de un paciente de 55 años, con pseudoaneurisma crónico del ventrículo izquierdo de etiología indefinida, de larga evolución, que se sometió a tratamiento conservador.