Desfechos clínicos intra-hospitalar e em até 1 ano de seguimento da Takotsubo no Brasil: Registro Brasileiro de Takotsubo (Takosubo Br-R) / In-hospital clinical outcomes and up to 1 year of follow-up of Takotsubo in Brazil: Brazilian Takotsubo Registry (Takosubo Br-R)

FUNDAMENTO: A evolução clinica intra-hospitalar e pós alta da Cardiomiopatia por Takotsubo (CT) assim como o perfil clinico dos pacientes de maior risco prognóstico não estão bem caracterizados nos grandes registros assim como no Brasil. OBJETIVO: Determinar a taxa de mortalidade intrahospitalar (MIH), as características dos pacientes que apresentaram relação com uma maior mortalidade, e a taxa de reincidência de CT(RCT)e mortalidade ao fim de 1 ano pós alta no Brasil. Delineamento e MÉTODOS: Este é um estudo retrospectivo, observacional,multicêntrico envolvendo 25 centros dispersos geograficamente pelo Brasil. Os critérios de inclusão foram de acordo com International Takotsubo Diagnostic Criteria (InterTAK Diagnostic Criteria). A características clinicas, biomarcadores, ECG, ecocardiograma (ECO), ressonância magnética cardíaca (RMC), foram avaliados durante a fase IH. Também foram avaliados a taxa de MIH, e a taxa de RCT, readmissão por DCV e mortalidade em 30 dias, 6 meses e 1 ano pós-alta. RESULTADOS: 448 pacientes foram admitidos CT, onde foi observado uma taxa de MIH de 7,5%. Na análise univariada do perfil clinico os pacientes do sexo masculino (p=0,009), com idade menos avançada (67±14 vs 73±11; P=0,0179), com choque cardiogênico (p<0,0001), sepsis (P<0,0001), fibrilação atrial (p=0,01) apresentaram significativamente maior MIH e dor toráxica (p<0,0001) com menor MIH. Na análise do ecocardiograma, ECG, RMC e peptídeos natriuréticos e Troponina não foram observados correlações significativas com a MIH. Quanto a terapêutica utilizada, os pacientes que usaram betabloqueador (P<0,0001), IECA/BRA (p<0,001) e AAS (p=0,04), demonstraram uma menor MIH. Os pacientes que utilizaram Dobutamina (p<0,0001), NE (P<0,0001) e e Vasopressina (P < 0,0001) demonstraram maior MIH. Na regressão logística de todas a variáveis significativas, a presença de sepsis (OR:6,8;IC-95%:2,3- 19,4;p=0,0005), uso de vasopressina(OR:7,5;IC95%:1,8-31;p=0,005) definiram maior MIH, enquanto que Betabloqueador(OR:0,23;IC-95%:0,1- 0,7;p=0,009) edortoráxica (OR:0,28;IC-95%:0,1-0,8;p=0,02) demonstraram uma menor associação com MIH. No seguimento pós-alta observamos uma taxa acumulativa de RCT, readmissão por DCV e mortalidade em 30 dias (0,2%;0,4%;0,2%);6 meses (0,6%; 1,2%;0,8%) e 12meses (0,8%;2,4%;0,8%) respectivamente. CONCLUSÃO: O Registro Brasileiro de Takotsubo demonstrou características clinicas e de exames complementares semelhantes aos dos registros internacionais com predomino de dor toráxica com alteração do segmento ST, assim como nos desfechos clínicos intra-hospitalares. A Takotsubo apresenta um prognostico benigno nos 12 meses pós alta, com uma baixa taxa de recorrência, readmissão hospitalar e mortalidade. Palavras-chave: Takotsubo; cardiomiopatia neuroadrenergica.

Dysautonomia Evaluation by Holter in Chagas Heart Disease

Abstract Background Sudden cardiac death is the main lethal mechanism associated with Chagas cardiomyopathy. Studies suggest that dysautonomia may represent a relevant, intense, independent, and early phenomenon in the natural history of the disease, even when ventricular systolic function is preserved, and may also be the mechanism that triggers malignant ventricular arrhythmias. Objective To evaluate the degree of dysautonomia and its possible association with ventricular arrhythmias in patients with Chagas cardiomyopathy, according to different categories of mortality risk, as defined by the score proposed by Rassi, used as a surrogate outcome for death. Methods A cross-sectional study involving 43 patients with Chagas cardiomyopathy stratified into risk categories based on the Rassi score, with 23 being classified as low risk and 20 as intermediate-to-high risk. Heart rate variability (HRV) was assessed using Holter monitoring for long-term recordings of 24 hours (time domain) and for short-term recordings of 5 minutes (frequency domain) at rest and after autonomic tests: deep breathing and Valsalva maneuver. The HRV variables were compared between the groups using the Student's t-test and α=0.05. Results Comparison of the results between the risk stratification groups showed no differences in HRV indexes, either in the time or frequency domain. However, results showed a significant increase in the number of arrhythmias as a function of increased risk (p=0.02). Conclusion There was no association between the degree of dysautonomia, evaluated by Holter monitoring, and the categories of mortality risk, despite a direct association between the rate of arrhythmias and the higher risk group.

Factors That Impact the Decision to Perform Left Ventriculography in Coronary Artery Disease. / Fatores que Impactam a Decisão de Realizar Ventriculografia Esquerda em Doença Arterial Coronariana.

BACKGROUND: Left ventriculography is an invasive method for assessment of left ventricular systolic function. Since the advent of noninvasive methods, its use has been questioned, as it carries some risk to the patient. OBJECTIVE: To assess which factors are independently associated with the decision to perform ventriculography in patients with coronary artery disease. METHODS: Analytical, retrospective, database review study of electronic medical records comparing 21 predefined variables of interest among patients undergoing coronary angiography. P-values <0.05 were considered significant. RESULTS: We evaluated 600 consecutive patients undergoing coronary angiography. Left ventriculography was performed in the majority of cases (54%). After multivariate analysis, patients with chronic coronary syndrome (OR 1.72; 95% CI: 1.20-2.46; p < 0.01) were more likely to undergo the procedure. Patients with known ventricular function (OR 0.58; 95% CI: 0.40-0.85; p < 0.01); those with a history of CABG (OR 0.31; 95% CI: 0.14-0.69; p < 0.01) or hypertension (OR 0.58; 95% CI: 0.36-0.94; p = 0.02); and those with higher creatinine levels (OR 0.42; 95% CI: 0.26-0.69; p < 0.01) had greater odds of not undergoing ventriculography. CONCLUSIONS: In patients undergoing coronary angiography, a diagnosis of chronic coronary syndrome was independently associated with greater likelihood of left ventriculography, while having previously determined ventricular function, a history of hypertension or CABG, and higher creatinine levels were associated with a decreased likelihood of undergoing this procedure.

FUNDAMENTO: A ventriculografia esquerda é um método invasivo para avaliar a função sistólica do ventrículo esquerdo. Depois do advento de métodos não invasivos, o seu uso tem sido questionado por resultar em algum risco para o paciente. OBJETIVOS: Avaliar quais fatores associam-se independentemente com a decisão de realizar ventriculografia em pacientes com doença arterial coronariana. MÉTODOS: Tratou-se de um estudo analítico, retrospectivo, avaliando prontuários eletrônicos e banco de dados e comparando 21 variáveis de interesse pré-definidas entre pacientes submetidos a cineangiocoronariografia. Foi considerado significante p < 0,05. RESULTADOS: Avaliamos 600 pacientes consecutivos, e a ventriculografia esquerda foi realizada na maioria dos pacientes submetidos a uma cineangiocoronariografia (54%). Depois da análise multivariada, os pacientes com síndromes coronarianas crônicas ( odds ratio [OR] 1,72; intervalo de confiança de 95% [IC 95%]: 1,20­2,46; p < 0,01) tiveram maior chance de serem submetidos ao procedimento. Os pacientes com função ventricular conhecida (OR = 0,58; IC 95%: 0,40­0,85; p < 0,01), os revascularizados (OR 0,31; IC 95% 0,14­0,69; p < 0,01), os hipertensos (OR 0,58; IC 95%: 0,36­0,94; p = 0,02) e aqueles com maiores valores de creatinina (OR 0,42; IC 95% 0,26­0,69; p < 0,01) tiveram maior chance de não realizar ventriculografia. CONCLUSÕES: Nos pacientes submetidos a cineangiocoronariografia, o diagnóstico de síndrome coronariana crônica associou-se de modo independente com uma maior realização da técnica, enquanto ter a função ventricular previamente conhecida, ser hipertenso, ter sido submetido a revascularização cirúrgica prévia e ter valores de creatinina mais elevados associaram-se a uma maior chance de não realizar o método.

Fatores que Impactam a Decisão de Realizar Ventriculografia Esquerda em Doença Arterial Coronariana / Factors That Impact the Decision to Perform Left Ventriculography in Coronary Artery Disease

Resumo Fundamento A ventriculografia esquerda é um método invasivo para avaliar a função sistólica do ventrículo esquerdo. Depois do advento de métodos não invasivos, o seu uso tem sido questionado por resultar em algum risco para o paciente. Objetivos Avaliar quais fatores associam-se independentemente com a decisão de realizar ventriculografia em pacientes com doença arterial coronariana. Métodos Tratou-se de um estudo analítico, retrospectivo, avaliando prontuários eletrônicos e banco de dados e comparando 21 variáveis de interesse pré-definidas entre pacientes submetidos a cineangiocoronariografia. Foi considerado significante p < 0,05. Resultados Avaliamos 600 pacientes consecutivos, e a ventriculografia esquerda foi realizada na maioria dos pacientes submetidos a uma cineangiocoronariografia (54%). Depois da análise multivariada, os pacientes com síndromes coronarianas crônicas ( odds ratio [OR] 1,72; intervalo de confiança de 95% [IC 95%]: 1,20-2,46; p < 0,01) tiveram maior chance de serem submetidos ao procedimento. Os pacientes com função ventricular conhecida (OR = 0,58; IC 95%: 0,40-0,85; p < 0,01), os revascularizados (OR 0,31; IC 95% 0,14-0,69; p < 0,01), os hipertensos (OR 0,58; IC 95%: 0,36-0,94; p = 0,02) e aqueles com maiores valores de creatinina (OR 0,42; IC 95% 0,26-0,69; p < 0,01) tiveram maior chance de não realizar ventriculografia. Conclusões Nos pacientes submetidos a cineangiocoronariografia, o diagnóstico de síndrome coronariana crônica associou-se de modo independente com uma maior realização da técnica, enquanto ter a função ventricular previamente conhecida, ser hipertenso, ter sido submetido a revascularização cirúrgica prévia e ter valores de creatinina mais elevados associaram-se a uma maior chance de não realizar o método.

Abstract Background Left ventriculography is an invasive method for assessment of left ventricular systolic function. Since the advent of noninvasive methods, its use has been questioned, as it carries some risk to the patient. Objective To assess which factors are independently associated with the decision to perform ventriculography in patients with coronary artery disease. Methods Analytical, retrospective, database review study of electronic medical records comparing 21 predefined variables of interest among patients undergoing coronary angiography. P-values <0.05 were considered significant. Results We evaluated 600 consecutive patients undergoing coronary angiography. Left ventriculography was performed in the majority of cases (54%). After multivariate analysis, patients with chronic coronary syndrome (OR 1.72; 95% CI: 1.20-2.46; p < 0.01) were more likely to undergo the procedure. Patients with known ventricular function (OR 0.58; 95% CI: 0.40-0.85; p < 0.01); those with a history of CABG (OR 0.31; 95% CI: 0.14-0.69; p < 0.01) or hypertension (OR 0.58; 95% CI: 0.36-0.94; p = 0.02); and those with higher creatinine levels (OR 0.42; 95% CI: 0.26-0.69; p < 0.01) had greater odds of not undergoing ventriculography. Conclusions In patients undergoing coronary angiography, a diagnosis of chronic coronary syndrome was independently associated with greater likelihood of left ventriculography, while having previously determined ventricular function, a history of hypertension or CABG, and higher creatinine levels were associated with a decreased likelihood of undergoing this procedure.

Therapeutic versus prophylactic anticoagulation for patients admitted to hospital with COVID-19 and elevated D-dimer concentration (ACTION): an open-label, multicentre, randomised, controlled trial.

BACKGROUND: COVID-19 is associated with a prothrombotic state leading to adverse clinical outcomes. Whether therapeutic anticoagulation improves outcomes in patients hospitalised with COVID-19 is unknown. We aimed to compare the efficacy and safety of therapeutic versus prophylactic anticoagulation in this population. METHODS: We did a pragmatic, open-label (with blinded adjudication), multicentre, randomised, controlled trial, at 31 sites in Brazil. Patients (aged ≥18 years) hospitalised with COVID-19 and elevated D-dimer concentration, and who had COVID-19 symptoms for up to 14 days before randomisation, were randomly assigned (1:1) to receive either therapeutic or prophylactic anticoagulation. Therapeutic anticoagulation was in-hospital oral rivaroxaban (20 mg or 15 mg daily) for stable patients, or initial subcutaneous enoxaparin (1 mg/kg twice per day) or intravenous unfractionated heparin (to achieve a 0·3-0·7 IU/mL anti-Xa concentration) for clinically unstable patients, followed by rivaroxaban to day 30. Prophylactic anticoagulation was standard in-hospital enoxaparin or unfractionated heparin. The primary efficacy outcome was a hierarchical analysis of time to death, duration of hospitalisation, or duration of supplemental oxygen to day 30, analysed with the win ratio method (a ratio >1 reflects a better outcome in the therapeutic anticoagulation group) in the intention-to-treat population. The primary safety outcome was major or clinically relevant non-major bleeding through 30 days. This study is registered with ClinicalTrials.gov (NCT04394377) and is completed. FINDINGS: From June 24, 2020, to Feb 26, 2021, 3331 patients were screened and 615 were randomly allocated (311 [50%] to the therapeutic anticoagulation group and 304 [50%] to the prophylactic anticoagulation group). 576 (94%) were clinically stable and 39 (6%) clinically unstable. One patient, in the therapeutic group, was lost to follow-up because of withdrawal of consent and was not included in the primary analysis. The primary efficacy outcome was not different between patients assigned therapeutic or prophylactic anticoagulation, with 28 899 (34·8%) wins in the therapeutic group and 34 288 (41·3%) in the prophylactic group (win ratio 0·86 [95% CI 0·59-1·22], p=0·40). Consistent results were seen in clinically stable and clinically unstable patients. The primary safety outcome of major or clinically relevant non-major bleeding occurred in 26 (8%) patients assigned therapeutic anticoagulation and seven (2%) assigned prophylactic anticoagulation (relative risk 3·64 [95% CI 1·61-8·27], p=0·0010). Allergic reaction to the study medication occurred in two (1%) patients in the therapeutic anticoagulation group and three (1%) in the prophylactic anticoagulation group. INTERPRETATION: In patients hospitalised with COVID-19 and elevated D-dimer concentration, in-hospital therapeutic anticoagulation with rivaroxaban or enoxaparin followed by rivaroxaban to day 30 did not improve clinical outcomes and increased bleeding compared with prophylactic anticoagulation. Therefore, use of therapeutic-dose rivaroxaban, and other direct oral anticoagulants, should be avoided in these patients in the absence of an evidence-based indication for oral anticoagulation. FUNDING: Coalition COVID-19 Brazil, Bayer SA.

Therapeutic versus prophylactic anticoagulation for patients admitted to hospital with COVID-19 and elevated D-dimer concentration (ACTION): an open-label, multicentre, randomised, controlled trial

BACKGROUND: COVID-19 is associated with a prothrombotic state leading to adverse clinical outcomes. Whether therapeutic anticoagulation improves outcomes in patients hospitalised with COVID-19 is unknown. We aimed to compare the efficacy and safety of therapeutic versus prophylactic anticoagulation in this population. METHODS: We did a pragmatic, open-label (with blinded adjudication), multicentre, randomised, controlled trial, at 31 sites in Brazil. Patients (aged ≥18 years) hospitalised with COVID-19 and elevated D-dimer concentration, and who had COVID-19 symptoms for up to 14 days before randomisation, were randomly assigned (1:1) to receive either therapeutic or prophylactic anticoagulation. Therapeutic anticoagulation was in-hospital oral rivaroxaban (20 mg or 15 mg daily) for stable patients, or initial subcutaneous enoxaparin (1 mg/kg twice per day) or intravenous unfractionated heparin (to achieve a 0·3­0·7 IU/mL anti-Xa concentration) for clinically unstable patients, followed by rivaroxaban to day 30. Prophylactic anticoagulation was standard in-hospital enoxaparin or unfractionated heparin. The primary efficacy outcome was a hierarchical analysis of time to death, duration of hospitalisation, or duration of supplemental oxygen to day 30, analysed with the win ratio method (a ratio >1 reflects a better outcome in the therapeutic anticoagulation group) in the intention-to-treat population. The primary safety outcome was major or clinically relevant non-major bleeding through 30 days. This study is registered with ClinicalTrials.gov (NCT04394377) and is completed. FINDINGS: From June 24, 2020, to Feb 26, 2021, 3331 patients were screened and 615 were randomly allocated (311 [50%] to the therapeutic anticoagulation group and 304 [50%] to the prophylactic anticoagulation group). 576 (94%) were clinically stable and 39 (6%) clinically unstable. One patient, in the therapeutic group, was lost to follow-up because of withdrawal of consent and was not included in the primary analysis. The primary efficacy outcome was not different between patients assigned therapeutic or prophylactic anticoagulation, with 28 899 (34·8%) wins in the therapeutic group and 34 288 (41·3%) in the prophylactic group (win ratio 0·86 [95% CI 0·59­1·22], p=0·40). Consistent results were seen in clinically stable and clinically unstable patients. The primary safety outcome of major or clinically relevant non-major bleeding occurred in 26 (8%) patients assigned therapeutic anticoagulation and seven (2%) assigned prophylactic anticoagulation (relative risk 3·64 [95% CI 1·61­8·27], p=0·0010). Allergic reaction to the study medication occurred in two (1%) patients in the therapeutic anticoagulation group and three (1%) in the prophylactic anticoagulation group. INTERPRETATION: In patients hospitalised with COVID-19 and elevated D-dimer concentration, in-hospital therapeutic anticoagulation with rivaroxaban or enoxaparin followed by rivaroxaban to day 30 did not improve clinical outcomes and increased bleeding compared with prophylactic anticoagulation. Therefore, use of therapeutic-dose rivaroxaban, and other direct oral anticoagulants, should be avoided in these patients in the absence of an evidence-based indication for oral anticoagulation.

Factors Associated with Recurrence in Takotsubo Syndrome: A Systematic Review / Fatores Associados à Recorrência na Síndrome de Takotsubo: Uma Revisão Sistemática

Abstract Background: Takotsubo syndrome (TTS) is characterized by a temporary systolic dysfunction of the left ventricle (LV) related to a stressful event. However, the factors associated with its recurrence are still not well established. Objective: To analyze the main factors associated with TTS recurrence. Methods: A systematic review was performed using the PRISMA model. Observational studies, published between January 2008 and October 2017, which presented a recurrence rate of at least 3% and/or 5 or more patients with recurrence, and who met at least 80% of the STROBE criteria were included. Results: six articles reached the criteria to compose this systematic review. The recurrence rate ranged from 1 to 3.5% per year (global recurrence rate 3.8%). One study associated higher recurrence rate with the female gender, four reported the time between the first and second episodes, one study associated body mass index (BMI) and hypercontractility of the LV middle anterior wall to a higher recurrence rate. No association between recurrence and electrocardiographic changes were determined. Beta-blockers use was not associated with recurrence rates. Conclusions: Female gender, time from the first episode of the syndrome, low BMI and midventricular obstruction were reported as potential predictors of TTS recurrence.

Resumo Fundamento: A síndrome de Takotsubo (STT) é caracterizada por uma disfunção sistólica temporária do ventrículo esquerdo (VE) relacionada a um evento estressante. No entanto, os fatores associados à sua recorrência ainda não estão bem estabelecidos. Objetivo: Analisar os principais fatores associados à recorrência da STT. Métodos: Uma revisão sistemática foi realizada usando o modelo PRISMA. Foram incluídos estudos observacionais, publicados entre janeiro de 2008 e outubro de 2017, que apresentaram uma taxa de recorrência de pelo menos 3% e/ou 5 ou mais pacientes com recidiva e que preencheram pelo menos 80% dos critérios STROBE. Resultados: Seis artigos atenderam aos critérios para esta revisão sistemática. A taxa de recorrência variou de 1 a 3,5% ao ano (taxa de recorrência global 3,8%). Um estudo associou maior taxa de recorrência ao sexo feminino, quatro relataram o tempo entre o primeiro e o segundo episódio, um estudo associou o índice de massa corporal (IMC) e a hipercontratilidade da parede anterior média do VE a uma maior taxa de recorrência. Não foi determinada associação entre recorrência e alterações eletrocardiográficas. O uso de betabloqueadores não foi associado a taxas de recorrência. Conclusões: Sexo feminino, tempo desde o primeiro episódio da síndrome, baixo IMC e obstrução ventricular foram relatados como possíveis preditores de recorrência da STT.

Factors Associated with Recurrence in Takotsubo Syndrome: A Systematic Review.

BACKGROUND: Takotsubo syndrome (TTS) is characterized by a temporary systolic dysfunction of the left ventricle (LV) related to a stressful event. However, the factors associated with its recurrence are still not well established. OBJECTIVE: To analyze the main factors associated with TTS recurrence. METHODS: A systematic review was performed using the PRISMA model. Observational studies, published between January 2008 and October 2017, which presented a recurrence rate of at least 3% and/or 5 or more patients with recurrence, and who met at least 80% of the STROBE criteria were included. RESULTS: six articles reached the criteria to compose this systematic review. The recurrence rate ranged from 1 to 3.5% per year (global recurrence rate 3.8%). One study associated higher recurrence rate with the female gender, four reported the time between the first and second episodes, one study associated body mass index (BMI) and hypercontractility of the LV middle anterior wall to a higher recurrence rate. No association between recurrence and electrocardiographic changes were determined. Beta-blockers use was not associated with recurrence rates. CONCLUSIONS: Female gender, time from the first episode of the syndrome, low BMI and midventricular obstruction were reported as potential predictors of TTS recurrence.

Effect of Hospital Accreditation Process in Outcomes of Patients with Acute Coronary Syndrome

Abstract Background: Hospital accreditation has as goal the standardization of patient care, aiming quality improvement. On 2015, a cardiology reference hospital was evaluated and got level 3 from ONA in care given to Acute Coronary Syndrome (ACS) patients. Objetive: To compare length of stay (LOS) at Coronary Care Unit (CCU) and the total LOS at the hospital of ACS patients before and after ONA 3 accreditation. Other clinical outcomes were also analyzed. Methods: Systematic and prospective registry of admitted ACS patients at CCU, whose population was divided into pre-accreditation (period 1) and post-accreditation (period 2). Descriptive analysis was performed. For statistical analysis the Mann-Whitney test, chi-squared, Fisher's exact test and Multiple Linear Regression were performed. P value was considered statistically significant when < 0,05. Results: 372 patients were admitted with ACS, 186 in period 1, of which 47 (25,3%) with ST segment Elevation Myocardial Infarction (STEMI), and 186 in period 2, of which 70 (37,6%) with STEMI. The mean age was 65,9 years (± 12,2). About the CCU LOS, there was a reduction from 3 (IQR: 2-4) to 2,5 days (IQR: 2-4; p value = 0,088). Regarding the hospital LOS, there was also a reduction from 8 (IQR: 5-12,25) to 6 days (IQR:4-11; p value = 0,004). Analyzing the type of ACS, there was a significant reduction only at the hospital LOS in non-STEMI patients: 8 to 6 days (p value = 0,001). Other hospitalization length of stay and clinical outcomes did not present a significant reduction in the comparison. Conclusion: After the ONA 3 accreditation, there was a reduction of hospital LOS. There were no significant differences in the other outcomes analyzed.

Evaluation of the Bleeding Intensity of Patients Anticoagulated with Warfarin or Dabigatran Undergoing Dental Procedures / Avaliação da Intensidade de Sangramento de Procedimentos Odontológicos em Pacientes Anticoagulados com Varfarina ou Dabigatrana

Abstract Background: Thrombotic disorders remain one of the leading causes of death in the Western world. Dabigatran appeared as an alternative to warfarin for anticoagulation in the treatment of atrial fibrillation (AF). The risk associated with bleeding due to its use has been documented in several randomized clinical trials, but no large study has examined in detail the risk of bleeding during dental extraction and other dental procedures involving bleeding. Objective: To compare the intensity of bleeding in individuals taking dabigatran or vitamin K antagonist (warfarin) and undergoing dental procedures. Methods: Prospective, single-center, controlled study with one single observer. Patients diagnosed with nonvalvular AF, on warfarin or dabigatran, cared for at a cardiology referral center, and requiring single or multiple dental extractions, were evaluated up to seven days post-extraction. The following outcomes were assessed: bleeding time between the beginning and the end of suture and complete hemostasis; bleeding before the procedure, after 24 hours, 48 hours, 7 days, during and after suture removal (late); p<0.05 was defined as of statistical relevance. Results: We evaluated 37 individuals, 25 in the warfarin group and 12 in the dabigatran group. Age, sex, weight, height, blood pressure, color, schooling, family income and comorbidities were similar between the two groups. Regarding bleeding after 24 hours of the procedure, no one in the dabigatran group had bleeding, whereas 32% in the warfarin group had documented bleeding (p = 0.028). The other variables analyzed did not differ between the groups. Conclusions: This study suggests that, regarding dental extraction, there is no statistically significant difference in the intensity of bleeding of patients taking dabigatran as compared to those taking warfarin. Bleeding 24 hours after the procedure was less frequent among patients on dabigatran.

Resumo Fundamento: Distúrbios trombóticos permanecem como uma das principais causas de morte no mundo ocidental. A dabigatrana surgiu como alternativa à varfarina para a anticoagulação no tratamento da fibrilação atrial (FA). O risco associado a eventos hemorrágicos com a sua utilização foi documentado em vários ensaios clínicos randomizados, mas nenhum grande estudo analisou detalhadamente o risco de hemorragia durante a extração dentária e em outros procedimentos odontológicos que envolvam sangramentos. Objetivo: Em indivíduos submetidos a procedimentos odontológicos, avaliar a intensidade de sangramento com o uso de dabigatrana em comparação ao uso de anticoagulante oral antagonista da vitamina K (varfarina). Métodos: Estudo prospectivo, controlado, unicêntrico, observador único. Pacientes com diagnóstico de FA não valvar atendidos em um centro de referência em cardiologia e com indicação de anticoagulação que necessitavam de tratamento odontológico para exodontia única ou múltipla, estando em uso de varfarina ou dabigatrana e avaliados até sete dias pós-exodontia. Foram avaliados os efeitos sobre: tempo de sangramento entre o início e o fim da sutura e hemostasia completa; sangramento antes do procedimento, após 24 e 48 horas, 7 dias, durante e após a remoção da sutura (tardio), sendo considerado como estatisticamente significativo valor de p < 0,05. Resultados: Foram avaliados 37 indivíduos, sendo 25 no grupo varfarina e 12 no dabigatrana. Idade, sexo, peso, altura, pressão arterial, cor, escolaridade, renda familiar e comorbidades foram semelhantes nos dois grupos. Em relação ao sangramento 24 horas após o procedimento, ninguém do grupo dabigatrana apresentou sangramento, que esteve presente em 32% do grupo varfarina (p = 0,028). Não houve diferenças entre os grupos em relação às outras variáveis analisadas. Conclusões: Os dados deste estudo permitem sugerir que, em indivíduos submetidos a procedimento odontológico de exodontia, não há diferença estatisticamente significante na intensidade de sangramento em uso de dabigatrana em comparação ao uso de varfarina. Há uma menor frequência de sangramento 24 horas após o procedimento nos indivíduos em uso de dabigatrana.

Evaluation of the Bleeding Intensity of Patients Anticoagulated with Warfarin or Dabigatran Undergoing Dental Procedures.

BACKGROUND: Thrombotic disorders remain one of the leading causes of death in the Western world. Dabigatran appeared as an alternative to warfarin for anticoagulation in the treatment of atrial fibrillation (AF). The risk associated with bleeding due to its use has been documented in several randomized clinical trials, but no large study has examined in detail the risk of bleeding during dental extraction and other dental procedures involving bleeding. OBJECTIVE: To compare the intensity of bleeding in individuals taking dabigatran or vitamin K antagonist (warfarin) and undergoing dental procedures. METHODS: Prospective, single-center, controlled study with one single observer. Patients diagnosed with nonvalvular AF, on warfarin or dabigatran, cared for at a cardiology referral center, and requiring single or multiple dental extractions, were evaluated up to seven days post-extraction. The following outcomes were assessed: bleeding time between the beginning and the end of suture and complete hemostasis; bleeding before the procedure, after 24 hours, 48 hours, 7 days, during and after suture removal (late); p<0.05 was defined as of statistical relevance. RESULTS: We evaluated 37 individuals, 25 in the warfarin group and 12 in the dabigatran group. Age, sex, weight, height, blood pressure, color, schooling, family income and comorbidities were similar between the two groups. Regarding bleeding after 24 hours of the procedure, no one in the dabigatran group had bleeding, whereas 32% in the warfarin group had documented bleeding (p = 0.028). The other variables analyzed did not differ between the groups. CONCLUSIONS: This study suggests that, regarding dental extraction, there is no statistically significant difference in the intensity of bleeding of patients taking dabigatran as compared to those taking warfarin. Bleeding 24 hours after the procedure was less frequent among patients on dabigatran.

Implementation of a Regional Network for ST-Segment-Elevation Myocardial Infarction (STEMI) Care and 30-Day Mortality in a Low- to Middle-Income City in Brazil: Findings From Salvador's STEMI Registry (RESISST).

BACKGROUND: Few data exist on regional systems of care for the treatment of ST-segment-elevation myocardial infarction (STEMI) in developing countries. Our objective was to describe temporal trends in 30-day mortality and identify predictors of mortality among STEMI patients enrolled in a prospective registry in Brazil. METHODS AND RESULTS: From January 2011 to June 2013, 520 patients who received initial STEMI care at 23 nonspecialized public health units or hospitals, some of whom were transferred to a public cardiology referral center, were identified through a regional STEMI network supported by telemedicine and the local prehospital emergency medical service. We stratified patients into five 6-month periods based on presentation date. Mean age (±SD) of patients was 62.0 (±12.2) years, and 55.6% were men. The mean Global Registry of Acute Coronary Events (GRACE) score was 145 (±34). Overall mortality at 30 days was 15.0%. Use of dual antiplatelet therapy and statins increased significantly from baseline (January 2011) to period 5 (June 2013): 61.8% to 93.6% (P<0.001) and 60.4% to 79.7% (P<0.001), respectively. Rates of primary reperfusion also increased (29.1%-53.8%; P<0.001), and more patients were transferred to the referral center (44.7%-76.3%; P=0.001). Thirty-day mortality rates decreased from 19.8% to 5.1% (P<0.001). In multivariable analysis, factors independently associated with 30-day mortality were higher GRACE score, history of previous stroke, lack of transfer to the referral center, and lack of use of optimized medical therapy. CONCLUSIONS: Implementation of a regional STEMI system was associated with lower mortality and higher use of evidence-based therapies.

Impact of the Use of Different Diagnostic Criteria in the Prevalence of Dyslipidemia in Pregnant Women / Impacto do Uso de Diferentes Critérios Diagnósticos na Prevalência de Dislipidemia em Gestantes

Abstract Background: There is a physiologic elevation of total cholesterol (TC) and triglycerides (TG) during pregnancy. Some authors define dyslipidemia (DLP) in pregnant women when TC, LDL and TG concentrations are above the 95th percentile (p95%) and HDL concentration is below the 5th percentile (P5%) for gestational age (GA). Objective: To compare the prevalence of DLP in pregnant women using percentiles criteria with the V Brazilian Guidelines on Dyslipidemia and the association with maternal and fetal outcomes. Results: Pregnant women with high-risk conditions, aged 18-50 years, and at least one lipid profile during pregnancy was classified as the presence of DLP by two diagnostic criteria. Clinical and laboratorial data of mothers and newborns were evaluated. Conclusion: 433 pregnant women aged 32.9 ± 6.5 years were studied. Most (54.6%) had lipid profile collected during third trimester. The prevalence of any lipid abnormalities according to the criteria of the National Guidelines was 83.8%: TC ≥ 200 mg/dL was found in 49.9%; LDL ≥ 160 mg/dL, in 14.3%, HDL ≤ 50 mg/dL in 44.4% and TG ≥ 150 mg/dL in 65.3%. Any changes of lipid according to percentiles criteria was found in 19.6%: elevation above the P95% for TC was found in 0.7%; for LDL, 1.7%; for TG 6.4% and HDL lower than the P5% in 13%. The frequency of comorbidity: hypertension, diabetes, smoking, obesity and preeclampsia was similar among pregnant women when DLP was compared by both criteria. Conclusion: The prevalence of DLP during pregnancy varies significantly depending on the criteria used, however none demonstrated superiority in association with comorbidities.

Resumo Fundamento: Durante a gestação ocorrem, fisiologicamente, elevações do colesterol total (CT) e triglicerídios (TG). Alguns autores definem dislipidemia (DLP) gestacional quando as concentrações de CT, LDL e TG são superiores ao percentil 95 (P95%) e de HDL, inferiores ao percentil 5 (P5%) para a idade gestacional. Objetivo: Comparar a prevalência da DLP em gestantes conforme critério por percentis com o da V Diretriz Brasileira de Dislipidemia e avaliar a associação com desfechos materno-fetais. Métodos: Gestantes com patologias de alto risco, idade entre 18 a 50 anos, e, pelo menos um perfil lipídico durante a gestação foram classificadas quanto à presença de DLP por dois critérios. Dados clínicos e laboratoriais das mães e neonatos foram avaliados. Resultados: Estudou-se 433 gestantes com idade de 32,9 ± 6,5 anos. A maioria (54,6%) teve o perfil lipídico coletado no terceiro trimestre. A prevalência de quaisquer das alterações lipídicas, conforme os critérios da Diretriz Nacional, foi de 83,8%: CT ≥ 200 mg/dL foi encontrado em 49,9%; LDL ≥ 160 mg/dL, em 14,3%, HDL ≤ 50 mg/dL em 44,4% e TG ≥ 150 mg/dL, em 65,3%. Quaisquer das alterações lipídicas pelo critério dos percentis foi encontrada em 19,6%: sendo que elevação superior ao P95% para CT foi encontrada em 0,7%; para LDL, em 1,7%; para TG, em 6,4% e inferiores ao P5% para o HDL em 13%. A frequência das comorbidades: hipertensão, diabetes, tabagismo, obesidade e pré-eclâmpsia foi semelhante entre as gestantes quando se comparou DLP pelos dois critérios. Conclusão: A prevalência de DLP na gestação variou significativamente conforme o critério utilizado, entretanto nenhum demonstrou superioridade na associação com comorbidades.

Characteristics of training and motivation of physicians working in emergency medicine.

INTRODUCTION:: Emergency medicine is an area in which correct decisions often need to be made fast, thus requiring a well-prepared medical team. There is little information regarding the profile of physicians working at emergency departments in Brazil. OBJECTIVE:: To describe general characteristics of training and motivation of physicians working in the emergency departments of medium and large hospitals in Salvador, Brazil. METHOD:: A cross-sectional study with standardized interviews applied to physicians who work in emergency units in 25 medium and large hospitals in Salvador. At least 75% of the professionals at each hospital were interviewed. One hospital refused to participate in the study. RESULTS:: A total of 659 physicians were interviewed, with a median age of 34 years (interquartile interval: 29-44 years), 329 (49.9%) were female and 96 (14.6%) were medical residents working at off hours. The percentage of physicians who had been trained with Basic Life Support, Advanced Cardiovascular Life Support and Advanced Trauma Life Support courses was 5.2, 18.4 and 11.0%, respectively, with a greater frequency of Advanced Cardiovascular Life Support training among younger individuals (23.6% versus 13.9%; p<0.001). Thirteen percent said they were completely satisfied with the activity, while 81.3% expressed a desire to stop working in emergency units in the next 15 years, mentioning stress levels as the main reason. CONCLUSION:: The physicians interviewed had taken few emergency immersion courses. A low motivational level was registered in physicians who work in the emergency departments of medium and large hospitals in Salvador.

Decompensated chagasic heart failure versus non-chagasic heart failure at a tertiary care hospital: Clinical characteristics and outcomes.

OBJECTIVE: To evaluate clinical and epidemiological characteristics and clinical outcomes in patients hospitalized with decompensated heart failure (DHF), with a comparison between Chagas and non-Chagas disease. METHOD: This is a retrospective cohort study involving 136 patients consecutively admitted with DHF between January 1 and December 31, 2011, with the following outcomes: acute renal failure, cardiogenic shock, rehospitalization, and hospital death. Individuals aged ≥ 18 years with DHF were included while those with more than 10% of missing data regarding outcomes were excluded. Statistical analysis was performed using SPSS version 17.0. Chi-squared test was used to compare proportions. Student's T test was used to compare means. Kaplan-Meier and log-rank tests were used to compare rehospitalization rates between the two groups over time. RESULTS: Chagasic and non-chagasic patients were compared. The first had lower mean systolic blood pressure (111.8±18.4 versus 128.8±24.4, p<0.01), lower mean diastolic blood pressure (74.5±13.6 versus 82.0±15.2, p<0.01) and lower left ventricular ejection fraction (26.5±6.2 versus 41.5±18.9, p<0.01). In all, 20 patients with Chagas (50.1%) were rehospitalized, compared to 35 patients in the non-Chagas group (35.4%, p=0.04). Log rank test = 4.5 (p<0.01) showed that rehospitalization rates between the two groups over time (Kaplan-Meier curves) differed. CONCLUSION: Chagas disease was associated with lower systolic and diastolic blood pressure and lower left ventricular ejection fraction. The rehospitalization rate was higher in Chagas disease.