Prevalence of Atrial Fibrillation in Pacemaker Patients

Abstract Background: Current pacemakers allow for the continuous recording of the occurrence of arrhythmic events. One of the most frequent arrhythmias after implantation of a device is atrial fibrillation (AF), an important risk factor for embolic events. The frequency of this arrhythmia in pacemaker patients has not been widely studied. Objectives: This study aimed to evaluate the prevalence, incidence, and predictors of the occurrence of AF in patients with double-chamber pacemakers and without a history of atrial fibrillation prior to implantation. Methods: A dynamic, retrospective, and prospective cohort study was carried out with 186 patients undergoing biannual follow-up of the double-chamber pacemaker, without previous AF, in a single service, between 2016 and 2018. Clinical data were collected from the medical records and the telemetry of the device and the prevalence, incidence rate, relative risk by univariate analysis (by chi-square), and risk ratio were calculated by multivariate analysis (by Cox regression); values of p<0.05 were considered significant. Results: There was a prevalence of 25.3% FA, with an incidence of 5.64 cases / 100 persons-year. The median time for the development of arrhythmia was 27.5 months. Multivariate analysis identified 5 statistically significant predictors: male gender, OR: 2.54 [1.04-6.15]; coronary artery disease, OR: 2.98 [1.20-7.41]; hypothyroidism, OR: 3.63 [1.46-9.07]; prior heart surgery, OR: 2.67 [1.01-7]; and left atrial enlargement, OR: 2.72 [1.25-5.92]. Conclusions: The prevalence and incidence of AF in this population are high. Risk factors for AF were: male gender, coronary artery disease, hypothyroidism, prior heart surgery, and left atrial enlargement.

Evaluation of the pharmacotherapeutic follow-up effectiveness in patients with dyslipidemia in the secondary health care in the Brazilian Unified Health System (SUS)

Abstract Cardiovascular diseases (CVD) are one of the main causes of mortality in the world. Dyslipidemia treatment can reduce the number of deaths caused by CVD, by decreasing the lipid profile. Evaluate the pharmacotherapeutic follow-up effectiveness in patients with dyslipidemia, regarding clinical and laboratory aspects. A quasi-experimental trial was performed in 12 months. The studied population was included patients with dyslipidemia who received a pharmacotherapeutic follow-up, which was evaluated according to the Pharmacotherapy Workup developed by the Brazilian Ministry of Health. Clinical and laboratory evaluations were performed at the baseline, after a 6 and 12-months period. The statistical analyzes were performed with the normality test of Lilliefors, Cramer Von Misses, and Anderson Darling, later the t-paired test. This study demonstrated that after 6-months of intervention, statistically significant results were verified in the reduction of LDL-cholesterol, total cholesterol, increase in HDL-cholesterol, and reduction in the blood pressure. It was observed that for high-risk patients, the achievement of targets in the lipid profile and HbA1C occurred only after 12-months, because, this population needs more aggressive targets and expressive interventions. Pharmacotherapeutic follow-up in patients with dyslipidemia reduced lipid blood levels and promoted positive clinical and laboratory outcomes.

Coronary endarterectomy: a case control study and evaluation of early patency rate of endarterectomized arteries

Abstract Objective: To compare two groups of patients - the coronary endarterectomy group, with patients undergoing coronary artery bypass grafting (CABG) with coronary endarterectomy (CE), and the control group, with patients undergoing CABG without CE. We analyzed the rate of major outcomes (perioperative acute myocardial infarction [AMI], stroke, and mortality) and minor outcomes (time of cardiopulmonary bypass [CPB], time of aortic clamp, and postoperative length of hospital stay). We also determined the rates of early graft patency in patients undergoing CE. Methods: We reviewed a database of patients submitted to CABG, with or without associated CE, between January 2011 and June 2017. Twenty-five patients submitted to CE were compared with 201 patients submitted only to conventional surgery; the two groups presented similar preoperative characteristics and all the European System for Cardiac Operative Risk Evaluation (EuroSCORE) II variables did not presented statistically significant difference. We considered statistically significant values of P< 0.05. Results: There was no statistically significant difference in relation to time of post-surgical hospitalization (P=0.8139), incidence of perioperative AMI (P=0.2976), stroke (P=0,2976), and mortality rate (P=1.0000), but endarterectomy was associated with longer aortic clamping time (P=0.0004) and CPB time (P=0.0030). The rate of patency evaluated in patients submitted to endarterectomy (78,95%) was compatible with that described in the literature. Conclusion: In this sample, coronary endarterectomy was associated with the rate of early graft patency similar to that of the literature, with morbidity and mortality rates similar to those of conventional surgery.

Prevalence of carotid stenosis and incidence of ischemic stroke in patients undergoing non-coronary cardiac surgery

Abstract Introduction: Many publications on coronary surgery and carotid stenosis (CS) can be found, but we do not have enough information about the relationship between ischemic stroke, CS and non-coronary cardiac surgery. Objectives: To evaluate the incidence and risk factors associated with the stroke and CS ≥50% in patients undergoing non-coronary surgeries. Objectives: We assessed 241 patients, aged 40 years or older, between 2009 and 2016, operated in Santa Casa de Misericórdia de Ponta Grossa-PR, Brazil. We perform carotid Doppler in patients 40 years of age or older before any cardiac surgery as a routine. The incidence and possible risk factors for CS ≥50% and perioperative stroke were analyzed by univariate statistical analysis. Results: 11 patients (4.56%) presented perioperative stroke. The risk factor for stroke was CS ≥50%: OR=5.3750 (1.2909-22.3805), P=0.0208. Eighteen patients (7.46%) had CS ≥50% and their risk factors were extracardiac arteriopathy: OR=18.6607 (6.3644-54.7143), P<0.0001; COPD: OR=3.9040 (1.4491-10.5179), P=0.0071; diabetes mellitus: OR=2.9844 (1.0453-8.5204), P=0.0411; recent myocardial infarction: OR=13.8125 (1.8239-104.6052), P=0.0110; EuroSCORE II higher P=0.0056. Conclusion: The incidences of stroke and CS ≥50% were 4.56% and 7.46%, respectively. The risk factor for stroke was CS ≥50% and for CS ≥50% were extracardiac arteriopathy, COPD, diabetes mellitus, recent myocardial infarction and higher EuroSCORE II.

Correction of left ventricular outflow tract obstruction caused by anomalous papillary muscle and subaortic membrane

Abstract This paper presents a case study of a 30-year-old male patient with dyspnea on exertion had echocardiographic diagnosis of aortic subvalvar stenosis. Discrete mitral regurgitation and aortic valve dysplasia with mild to moderate insufficiency and hypertrophic cardiomyopathy were also noted. During surgery, a rare condition was identified: presence of papillary muscle anomaly associated with the subaortic membrane as a cause of obstruction of the left ventricular outflow tract. With the resection of these structures and a mitral valve annuloplasty, the patient evolved with a significant improvement of clinical condition and heart failure, with no residual mitral insufficiency.

Tissue microarray technology and collagen evaluation to analyze surgical trauma performed with usual blade or ultrasonic harmonic scalpels in rats

Abstract Purpose: To compare wound healing performed with cold blade (CSB) and ultrasonic harmonic scalpel (UHS) in the abdominal aponeurosis of rats. Methods: Eighty Wistar rats divided into two groups and underwent midline incision in the linea alba with cold blade and harmonic ultrasonic scalpel. Analysis were performed in subgroups of 10 animals after 3, 7, 14 and 21 days. Macroscopically was observed the presence of hematoma, infection, wound dehiscence, fistula and adherences. Microscopically were used collagen and immunohistochemical staining methods. Results: Macroscopic, complications showed no statistical difference. Immunohistochemical analysis for MMP-9 was more intense in UHS group (p<0.05). TGF β presented its lower expression in UHS group at 14 and 21 days, with no statistical difference at 3 and 7 days (p<0.05). α-AML expression appeared higher in UHS group after 14 days and remained similar in others (p<0.05). Collagen deposition had no change in type I, and increased in type III in UHS; at 7th day the deposition was higher in CSB group; at 14th was similar in both groups (p<0.001). Conclusion: UHS compared to the CSB has higher lesion area at the time of the incision; as well as it led to the delay of regeneration and scar maturation process.

Relações Entre Ações de uma Invervenção Educativa na Adesão ao Tratamento e no RNI de Pacientes em Uso de Antagonistas de Vitamina K / Relationship Between Educative Intervention on Treatment Adherence and INR of Patients on Vitamin K Antagonists

Avaliar se uma intervenção educacional interfere na adesão ao tratamento, meta terapêutica e frequência de eventos hemorrágicos de pacientes em uso de antagonistas de vitamina K e se características socioeconômicas/clínicas possuem efeito sobre os resultados encontrados. Método: Estudo analítico intervencionista não controlado qualitativo. Foram incluídos 49 pacientes e aplicados os questionários de medida de adesão ao tratamento (MAT) e socioeconômico. Posteriormente foram realizadas ligações mensais educativas sobre anticoagulação e foram coletadas informações sobre eventos hemorrágicos e valores de RNI. Ao termino da intervenção foi aplicado mais um questionário MAT. Foram comparados os dados antes e após a intervenção. Resultados: Os pacientes foram considerados mais aderentes após a intervenção (p=0,04) e houve diminuição na frequência de eventos hemorrágicos (p=0,01), existindo nenhuma relação com as variáveis socioeconômicas ou clínicas. Não houve melhora significativa em relação à meta de RNI (p=0,06), porém o estado civil desses pacientes teve associação com a estabilidade terapêutica (p=0,04). Conclusões: A intervenção melhorou a aderência e diminuiu os eventos hemorrágicos dos pacientes, não tendo influência sobre a meta terapêutica. Pacientes com cônjuge apresentaram melhores metas terapêuticas se comparados aos solteiros. Não houve interferência de outras variáveis socioeconômicas ou clínicas sobre os desfechos encontrados

Objectives: To evaluate if an educational intervention interfere in treatment adherence, therapeutic ranges and hemorrhagic.events of patients on vitamin K antagonists; and if social, economic and clinical.characteristics are associated with the ending points. Methods: It's an interventionist analytic study. 49 patients were included.and an adherence.and social/economic questionnaires were applied. Then, monthly educative phone calls.were performed about anticoagulation and information about hemorrhagic,events and INR were collected. When intervention,were done, another adherence questionnaire was applied. Data before and after intervention were compared. Results: Patients had their adherence improved (p=0,04) and there was a fall on the prevalence,of hemorrhagic events (p=0,01) with,no,social/clinical variables association. There were no significant,changes,on the therapeutic ranges (p=0,06), although there was a relationship,between marital state and INR,stability (p=0,04). Conclusions: Educational intervention increased adherence,and decreased hemorrhagic events. Marital state has been associated with better therapeutic,ranges. No other social, economic.or clinical.variable has been associated with the ending points

Comparison of Two Central Venous Pressure Control Strategies to Prevent Atrial Fibrillation After Coronary Artery Bypass Grafting / Comparação de Duas Estratégias de Controle de Pressão Venosa Central na Prevenção de Fibrilação Atrial em Pós-Operatório de Revascularização do Miocárdio

Abstract Background: Atrial fibrillation (AF) takes place in 10-40% of patients undergoing coronary artery bypass grafting (CABG), and increases cardiovascular mortality. Enlargement of atrial chambers is associated with increased AF incidence, so patients with higher central venous pressure (CVP) are expected to have larger atrial distension, which increases AF incidence. Objective: To compare post-CABG AF incidence, following two CVP control strategies. Methods: Interventional, randomized, controlled clinical study. The sample comprised 140 patients undergoing CABG between 2011 and 2015. They were randomized into two groups, G15 and G20, with CVP maintained ≤ 15 cmH2O and ≤ 20 cmH2O, respectively. Results: 70 patients were included in each group. The AF incidence in G15 was 8.57%, and in G20, 22.86%, with absolute risk reduction of 14.28%, and number needed to treat (NNT) of 7 (p = 0.03). Mortality (G15 = 5.71%; G20 = 11.42%; p = 0.07), hospital length of stay (G15 = 7.14 days; G20 = 8.21 days; p = 0.36), number of grafts (median: G15 = 3, G2 = 2; p = 0.22) and cardiopulmonary bypass use (G15 = 67.10%; G20 = 55.70%; p = 0.22) were statistically similar. Age (p = 0.04) and hospital length of stay (p = 0.001) were significantly higher in patients who developed AF in both groups. Conclusion: Keeping CVP low in the first 72 post-CABG hours reduces the relative risk of AF, and may be useful to prevent AF after CABG.

Resumo Fundamento: A fibrilação atrial (FA) ocorre em 10-40% dos pacientes submetidos a cirurgia de revascularização miocárdica (RM), e eleva a mortalidade cardiovascular. Como o aumento dos átrios está associado ao aumento da incidência de FA, espera-se que pacientes com pressão venosa central (PVC) mais alta tenham maior distensão atrial, o que eleva a incidência dessa arritmia. Objetivo: Comparar a incidência de FA em pós-operatório de RM, seguindo duas estratégias de controle de PVC. Métodos: Estudo clínico randomizado controlado intervencionista. A amostra foi composta por 140 pacientes submetidos a RM entre 2011 e 2015. Os pacientes foram randomizados em dois grupos, G15 e G20, mantidos com PVC máxima de 15 cmH2O e 20 cmH2O, respectivamente. Resultados: Foram incluídos 70 pacientes em cada grupo. A incidência da arritmia em G15 foi de 8,57% e, no G20, de 22,86%, com redução de risco absoluto de 14,28% e número necessário para tratar (NNT) de 7 (p = 0,03). Mortalidade (G15 = 5,71%; G20 = 11,42%; p = 0,07), tempo de internamento (G15 = 7,14 dias; G20 = 8,21 dias; p = 0,36), número de enxertos (medianas: G15 = 3, G2 = 2; p = 0,22) e uso de circulação extracorpórea (G15 = 67,10%; G20 = 55,70%; p = 0,22) mostraram-se estatisticamente semelhantes. A idade (p = 0,04) e o tempo de internamento (p = 0,001) foram significativamente maiores nos pacientes que desenvolveram FA nos dois grupos. Conclusão: Manter a PVC com valores mais baixos nas primeiras 72h após a cirurgia de RM reduz o risco relativo de FA e pode ser uma ferramenta útil na prevenção da FA após RM.

Anticoagulation quality and complications of using vitamin k antagonists in the cardiac surgery outpatient clinic

ABSTRACT Introduction: In patients with mechanical prosthetic heart valves or atrial fibrillation requiring anticoagulation to prevent thromboembolic events, several factors influence adherence and anticoagulation complications. Objective: To evaluate the factors that interfere with the quality and complications of anticoagulation with vitamin K antagonists. Methods: A retrospective cohort study of 100 patients, in the period from 2011 to 2014, was performed. Anticoagulation conditions in the last year, regarding the presence of complications (embolisms/bleeding) and inadequate treatment were assessed: achievement of less than 8 annual prothrombin times and International Normalized Ratio outside therapeutic target in more than 40% of prothrombin times. Results: There were 31 complications (22 minor bleeding without hospitalization and 9 major complications: 7 bleeding with hospitalization and two emboli); 70 were with International Normalized Ratio outside the target in more than 40% of the tests and 36 with insufficient number of prothrombin times. Socioeconomic factors, anticoagulant type and anticoagulation reason had no relationship with complications or with inadequate treatment. There were more complications in patients with longer duration of anticoagulation (P=0.001). Women had more International Normalized Ratio outside the target range (OR 2.61, CI:1.0-6.5; P=0.04). Patients with lower number of annual prothrombin times had longer times of anticoagulation (P=0.03), less annual consultations (P=0.02) and less dose adjustments (P=0.003). Patients with longer duration of anticoagulation have more complications (P=0.001). Conclusion: There was a high rate of major complications and International Normalized Ratio was outside the goal. Less annual prothrombin times was related to longer duration of anticoagulation, less annual consultations and less dose adjustments. More major complications occurred in patients with longer duration of anticoagulation.

Use of Bovine Pericardium and Sutureless Biological Glue in Left Ventricular Rupture After Mitral Valve Replacement, Five Years of Follow-up

ABSTRACT Rupture of the left ventricular wall after mitral valve replacement is an infrequent but lethal complication. Reporting correction technique of ventricular rupture with bovine pericardium patch secured with glue and without suturing: a 51 years-old female patient, with double rheumatic mitral lesion, severe stenosis and discrete insufficiency, who had a mitral valve replacement. During surgery, the patient presented a ventricular rupture of the posterior wall (atrioventricular disruption), which was successfully repaired using bovine pericardium with sutureless biological glue over the epicardium of the damaged area. Sixty months after surgery the patient has no symptoms.

Factors Associated With the Development of Chronic Post-Sternotomy Pain: a Case-Control Study

ABSTRACT OBJECTIVE: The aim of the present study was to investigate the factors associated with chronic post-sternotomy pain in heart surgery patients. METHODS: Between January 2013 and February 2014, we evaluated 453 patients with >6 months post-sternotomy for cardiac surgery at a surgical outpatient clinic. The patients were allocated into a group with chronic post-sternotomy pain (n=178) and a control group without pain (n=275). The groups were compared for potential predictors of chronic post-sternotomy pain. We used Cox proportional hazards regression to determine which independent variables were associated with the development of chronic post-sternotomy pain. RESULTS: In total, 39.29% of the patients had chronic poststernotomy pain. The following factors were significantly associated with chronic post-sternotomy pain: (a) use of the internal thoracic artery in coronary bypass grafting (P =0.009; HR=1.39; 95% CI, 1.08 to 1.80); (b) a history of antidepressant use (P =0.0001; HR=2.40; 95% CI, 1.74 to 3.32); (c) hypothyroidism (P =0.01; HR=1.27; 95% CI, 1.03 to 1.56); (d) surgical wound complication (P =0.01; HR=1.69; 95% CI, 1.08 to 2.63), and (e) patients on disability benefits or scheduled for a consultative medical examination for retirement (P =0.0002; HR=2.05; 95% CI, 1.40 to 3.02). CONCLUSION: The factors associated with chronic poststernotomy pain were: use of the internal thoracic artery; use of antidepressants; hypothyroidism; surgical wound complication, and patients on disability benefits or scheduled for a consultative examination.

Risk factors for perioperative ischemic stroke in cardiac surgery / Fatores de risco para acidente vascular cerebral isquêmico no perioperatório de cirurgia cardíaca

AbstractObjective:The purpose of this study was to evaluate the risk factors for ischemic stroke in patients undergoing cardiac surgery.Methods:From January 2010 to December 2012, 519 consecutive patients undergoing cardiac surgery were analyzed prospectively. The sample was divided into two groups: patients with stroke per and postoperative were allocated in Group GS (n=22) and the other patients in the group CCONTROL (n=497). The following variables were compared between the groups: gender, age, carotid stenosis > 70%, diabetes on insulin, chronic obstructive pulmonary disease, peripheral arteriopathy, unstable angina, kidney function, left ventricular function, acute myocardial infarction, pulmonary arterial hypertension, use of cardiopulmonary bypass. Ischemic stroke was defined as symptoms lasting over 24 hours associated with changes in brain computed tomography scan. The variables were compared using Fisher’s exact test, Chi square, Student’s t-test and logistic regression.Results:Stroke occurred in 4.2% of patients and the risk factors statistically significant were: carotid stenosis of 70% or more (P=0.03; OR 5.07; IC 95%: 1.35 to 19.02), diabetes on insulin (P=0.04; OR 2.61; IC 95%: 1.10 to 6.21) and peripheral arteriopathy (P=0.03; OR 2.61; 95% CI: 1.08 to 6.28).Conclusion:Risk factors for ischemic stroke were carotid stenosis of 70% or more, diabetes on insulin and peripheral arteriopathy.

ResumoObjetivo:O objetivo do presente trabalho foi avaliar os fatores de risco para acidente vascular encefálico isquêmico em pacientes submetidos à cirurgia cardíaca.Métodos:Entre janeiro de 2010 e dezembro de 2012, foram analisados prospectivamente 519 pacientes consecutivos submetidos à cirurgia cardíaca. A amostra foi dividida em dois grupos: os pacientes com acidente vascular encefálico isquêmico (AVEi) trans e pós-operatório foram alocados no grupo GAVEi (n=22) e os demais pacientes no grupo CControle (n=497). As seguintes variáveis foram comparadas entre os grupos: sexo, idade, estenose carotídea >70%, diabetes em uso de insulina, doença pulmonar obstrutiva crônica, arteriopatia periférica, função renal, angina instável, função do ventrículo esquerdo, infarto agudo do miocárdio recente, hipertensão arterial pulmonar, uso de circulação extracorpórea. Acidente vascular encefálico isquêmico foi definido como presença de sintomas de duração maior que 24 horas associados à alteração em tomografia de crânio. As variáveis foram comparadas, por meio do teste exato de Fisher, Qui quadrado, teste t de Student e regressão logística.Resultados:Verificou-se a ocorrência de acidente vascular encefálico isquêmico em 4,2% dos pacientes e os fatores de risco estatisticamente significativos foram: estenose carotídea de 70% ou mais (P=0,03; OR 5,07; IC 95%: 1,35 a 19,02), diabetes em uso de insulina (P=0,04; OR 2,61; IC 95%: 1,10 a 6,21) e arteriopatia periférica (P=0,03; OR 2,61; IC 95%: 1,08 a 6,28).Conclusão:Foram fatores de risco para acidente vascular encefálico isquêmico: estenose carotídea de 70% ou mais, presença de diabetes em uso de insulina e presença de arteriopatia periférica.

Síndrome de Reel recorrente após implante de cardiodesfibrilador à esquerda e à direita / Recurrent Reel Syndrome after left and right implantation of cardioverter defibrillator

A síndrome de Reel é uma complicação rara que ocorre após o implante de dispositivos intracardíacos, sendo definida como retração e deslocamento dos cabos-eletrodos em decorrência de rotação do gerador em seu eixo sagital. Recorrências após medidas preventivas durante o reposicionamento não são comuns. Relata-se o caso de uma paciente com deslocamento recorrente de cabos-eletrodos após implante de cardiodesfibrilador a despeito de diversas medidas adotadas para prevenir novos deslocamentos e implante do dispositivo pela veia subclávia tanto esquerda como direita, com fixação do gerador à fáscia subpeitoral.

The Reel Syndrome is a rare complication that occurs after implantation of intracardiac devices, defined as lead retraction and displacement due to generator rotation on its sagittal axis. Recurrences after preventive measures during repositioning are not common. We report the case of a patient with recurrent lead displacement after defibrillator implantation in spite of several measures taken to prevent further device displacement and implantation both by left and right subclavian vein with attachment of the generator to the subpectoral fascia.

Doença de Takotsubo (Síndrome do coração partido): uma doença subdiagnosticada? / Takotsubo disease (Broken heart syndrome): an underdiagnosed disease?

Fundamentos: A cardiomiopatia de Takotsubo, maisconhecida como doença de Takotsubo, é umadisfunção do ventrículo esquerdo (VE) reversível naausência de coronariopatia obstrutiva, frequentemente causada por estresse intenso e que apresenta quadroclínico idêntico ao infarto agudo do miocárdio (IAM).A doença de Takotsubo é muitas vezes erroneamente diagnosticada e confundida com o IAM apesar de ter fisiopatologia e tratamento distintos. Objetivos: Avaliar a incidência da doença de Takotsubona Santa Casa de Misericórdia de Ponta Grossa, PR noperíodo de 2007 a 2012, e analisar os fatores de risco, complicações, condições relacionadas à doença e evolução dos pacientes durante a internação hospitalar. Métodos: Estudo descritivo transversal e revisão bibliográfica com análise de dados coletados dos prontuários do Serviço de Hemodinâmica da SantaCasa de Misericórdia de Ponta Grossa, PR no períodode 2007 a 2012. A partir do diagnóstico retrospectivo de doença de Takotsubo, os dados foram expressos em médias e desvios-padrão ou em valores absolutos e porcentagens. As variáveis foram comparadas através do teste t de Student e qui-quadrado. Adotado o nível de significância p<0,05. Resultados: Encontrados 24 pacientes com doença deTakotsubo. Destes, apenas 5 foram diagnosticados na internação hospitalar. Maioria dos pacientes do sexo feminino (71,0%) e prevalência (75,0%) de hipertensão arterial sistêmica (HAS) no total de pacientes Conclusão: A doença de Takotsubo é subdiagnosticada, sendo o diagnóstico realizado durante a internação em apenas um de cada cinco casos admitidos. Houve forte associação da doença com HAS e maior prevalência em mulheres na pós-menopausa.

Background: Takotsubo cardiomyopathy, more commonly known as Takotsubo disease, is a reversible dysfunction of the left ventricle (LV) in the absence of obstructive coronary disease. Often caused by severe stress, its clinical features are similar to those of acute myocardial infarction (AMI), although with diferente pathophysiology and treatment. Objectives: To assess the rate of Takotsubo disease in the Santa Casa de Misericordia hospital, Ponta Grossa,Paraná State, between 2007 and 2012, analyzing risk factors, complications and conditions related to this disease, together with patient outcomes during hospitalization. Methods: Descriptive cross-sectional study and review of the literature with an analysis of data collected from the medical records of the Hemodynamics Unit, Santa Casa de Misericórdia hospital, Ponta Grossa, Paraná State, between 2007and 2012. Drawn from retrospective diagnoses of Takotsubo disease, the data were expressed as means and standard deviations or as absolute values and percentages. Variables were compared using the Student’s t and chi- squared tests, with significance levels of p<0.05.Results: We found 24 patients with Takotsubo disease,of whom only five were diagnosed during hospitalization. Most (71,0%) patients were female, with a prevalence(75,0%) of systemic arterial hypertension (SAH) among all patients. Conclusion: Takotsubo disease is underdiagnosed,with only one in five cases diagnosed during hospitalization. There was a strong association between this disease and SAH, with a higher prevalence among post-menopausal women.

Relação do polimorfismo C825T do gene GNB3 e hipertensão arterial sistêmica de difícil controle / Relationship between C825T polymorphism of the GNB3 gene and dificult-to-treat hypertension

Fundamentos: O polimorfismo C825T do gene GNB3 está associado à hipertensão arterial sistêmica (HAS) em algumas populações já analisadas, porém alguns estudos se mostram controversos no que se refere a esta relação. Objetivo: Avaliar a relação do polimorfismo C825T do gene GNB3 com a HAS de difícil controle medicamentoso em hipertensos de Campos Gerais, PR - Brasil. Métodos: Em relação ao polimorfismo C825T de GNB3, foram determinados os genótipos de 60 hipertensos, os quais foram estratificados em dois grupos (fácil e difícil controle medicamentoso), por meio da técnica de PCR-RFLP (Polymerase Chain Reaction - Restriction Fragment Lenght Polymorphism). Foram avaliadas as frequências alélicas e genotípicas, utilizando-se o teste do qui-quadrado de Pearson, com correção de Yates e odds ratio (OR). Resultados: Não houve diferenças entre os grupos, quando comparadas as frequências alélicas e genotípicas, indicando que a população está em equilíbrio. A probabilidade de o paciente possuir o polimorfismo e a HAS de difícil controle foi 53,5 % (OR=1,15; IC95 % = 0,41-3,26), analisando-se os genótipos. Já a análise dos alelos, separadamente, mostrou uma associação de 55,4 % (OR=1,24; IC95 % = 0,59-2,57). Conclusão: Nesta população não foi encontrada relação entre o polimorfismo C825T do gene GNB3 e a HAS de difícil controle, indicando que outros fatores estão influenciando a manifestação dessa doença nestes pacientes.

Background: C825T polymorphism of the GNB3 gene is associated with systemic arterial hypertension (SAH) in some studied populations, although certain studies are controversial in terms of this relationship. Objective: To evaluate the relationship between C825T polymorphism of the GNB3 gene and difficult-to-treat SAH among hypertensive patients in Campos Gerais, Paraná State, Brazil. Methods: With regard to C825T polymorphism of the GNB3 gene, the genotypes were defined for sixty hypertensive patients divided in 2 groups (easy and difficult-to-treat with drugs), using the Polymerase Chain Reaction - Restriction Fragment Length Polymorphism (PCR-RFLP) technique. The allele and genotype frequencies were assessed through the Pearson chi-square test, with Yates correction and odds ratio (OR). Results: There were no differences between the groups when comparing the allele and genotype frequencies, indicating that the population is in equilibrium. The probability that a patient has polymorphism with difficult-to-treat SAH reached 53.5% (OR=1.15, 95%CI = 0.41-3.26), analyzing the genotypes. A separate allele analysis showed an association of 55.4% (OR=1.24, 95%CI = 0.59-2.57). Conclusion: No relationship was found in this population between C825T polymorphism of the GNB3 gene and difficult-to-treat SAH, indicating that other factors are influencing the appearance of this disease among these patients.

Benefícios tardios do uso de marcapasso no tratamento da miocardiopatia hipertrófica obstrutiva / Long-term benefits of pacemaker use in obstructive hypertrophic cardiomyopathy treatment

OBJETIVO: Avaliar os resultados tardios do uso de marcapasso (MP) em pacientes portadores de miocardiopatia hipertrófica obstrutiva (MHO), sintomáticos e refratários ao tratamento medicamentoso.MÉTODO: Foram avaliados 10 pacientes portadores de MHO, refratários ao tratamento com betabloqueador e/ou verapamil, submetidos a implante de MP de dupla-câmara (DDD). Os pacientes foram acompanhados por um período médio de 4,5 anos após o implante. Foram comparados os dados clínicos (classe funcional, presença de síncope ou tontura e dor precordial) e os gradientes de pressão máximos na via de saída do VE pelo ecocardiograma, no pré-implante, na consulta entre três e seis meses e na consulta atual. Os dados clínicos foram confirmados por teste ergométrico realizado na última avaliação clínica.RESULTADOS: Não houve mortalidade e sim melhora significativa (p=0,0233) da classe funcional após o implante, que persistiu até a última avaliação, bem como desaparecimento de dor precordial e tontura, estatisticamente significativo para tontura (p=0,0412). O gradiente máximo na via de saída do VE foi 90,6 mmHg no pré-implante, 19 com três e seis meses e 13 no exame atual (p=0,00001). Houve correlação entre a classe funcional avaliada clinicamente e pelo teste ergométrico.CONCLUSÃO: Ocorreu melhora significativa da classe funcional e desaparecimento dos sintomas de dor precordial e tontura, bem como redução significativa do gradiente na via de saída do VE, que persistiu no seguimento tardio, mostrando que o uso de MP DDD foi uma opção terapêutica segura e resolutiva em longo prazo na amostra estudada.

Cisto tímico gigante com localização atípica: relato de caso / Giant thymic cyst with atypical location: case report

Paciente do sexo feminino, 47 anos, admitida com queixa de dispneia aos pequenos esforços como único sintoma. Exames clínico, eletrocardiográfico e de laboratório normais. Radiografia de tórax demonstrou massa em base de hemitórax direito, que a tomografia computadorizada de tórax revelou tratar-se de massa cística bem delimitada, medindo cerca de 11,3 x 10,6 x 10,9 cm, sugerindo o diagnóstico de cisto pericárdico. A paciente foi submetida a toracotomia direita para ressecção do cisto. A paciente evoluiu sem intercorrências. O resultado do exame anatomopatológico, ao contrário do esperado, diagnosticou cisto tímico.

A 47-year-old woman was admitted with a history of dyspnea on mild exertion as her only symptom. Clinical exam, laboratory tests, and electrocardiography were normal. Chest X-ray demonstrated right hemithorax base mass, and CT scan revealed a well-defined cystic mass measuring approximately 11.3 x 10.6 x 10.9 cm, suggesting the diagnosis of pericardial cyst. The patient underwent right thoracotomy for resection of the cyst. The patient's progress- was uneventful. The result of histopathological examination, contrary to expectations, revealed thymic cyst.

Índice de risco de mortalidade por endocardite infecciosa: um modelo logístico multivariado / Risk index for death by infective endocarditis: a multivariate logistic model

OBJETIVO: Os objetivos do presente trabalho foram identificar variáveis preditivas de mortalidade hospitalar em endocardite infecciosa e criar fórmula matemática para cálculo do risco de óbito e um escore de risco, comparando os dois métodos com a curva ROC. MÉTODO: Foram estudados, retrospectivamente, 186 casos consecutivos de endocardite infecciosa (EI) confirmados, divididos em dois grupos: alta (137) e óbito hospitalar (49). A partir das razões das chances obtidas em análise multivariada, foram criados: uma fórmula para cálculo do risco de óbito e um escore de risco. RESULTADOS: Fatores preditivos de maior mortalidade (análise multivariada) e o escore de risco com seus respectivos pesos foram: idade > 40 anos (RC = 4.16-95 por centoI.C. [1.63,10.80] - 4 pontos), insuficiência cardíaca classe IV ou choque cardiovascular (RC = 4.93 - 95 por centoI.C. [1.86,13.05] - 5 pontos), sepsis não-controlada (RC =5.97 - 95 por centoI.C. [1.95,18.35] - 6 pontos), distúrbio de condução (RC = 5.07-95 por centoI.C. [1.67,15.35] - 5 pontos), arritmia (RC = 8.17 - 95 por centoI.C. [2.60,25.71] - 8 pontos), valva com grande destruição ou abscesso ou prótese (RC = 4.77-95 por centoI.C. [1.44,15.76] - 5 pontos), e vegetação grande e móvel (RC = 4.36-95 por centoI.C. [1.55,12.90] - 4 pontos). Pacientes com escore entre 0 e 10 tiveram 5,26 por cento de MT e maior que 20: 78,9 por cento. CONCLUSÕES: Quanto maior o escore, maior é a mortalidade, complemente-se, ainda, que a estimativa de mortalidade obtida por cálculo ou pelo escore é semelhante. É possível utilizar software para facilitar a aplicação do escore e calcular risco de mortalidade por endocardite infecciosa.

OBJECTIVE: This study aimed at identifying predictive variables for in-hospital mortality, calculating the probability of death and creating a risk index for death by infective endocarditis by comparing two methods using a Receiver Operating Characteristic (ROC) curve. METHODS: A retrospective study was conducted of 186 consecutive cases of confirmed infective endocarditis divided into two groups: discharged (137) and in-hospital death (49). Based on the odds ratios obtained by multivariate analysis, the probability of death was calculated and a mortality risk index created. RESULTS: Factors predictive of higher mortality (multivariate analysis) and the risk index, with their repective weights were: age > 40 years (OR = 4.16; 95 percentCI [1.63-10.80] - 4 points), class IV heart failure or cardiovascular shock (OR = 4.93; 95 percentCI [1.86-13.05] - 5 points), uncontrolled sepsis (OR = 5.97; 95 percentCI [1.95-18.35] - 6 points), conduction disorder (OR = 5.07; 95 percentCI [1.67-15.35] - 5 points), arrhythmia (OR = 8.17; 95 percentCI [2.60-25.71] - 8 points), valve with extensive damage or abscess or prosthesis (OR = 4.77; 95 percentCI [1.44-15.76] - 5 points) and large and mobile vegetation (OR = 4.36; 95 percentCI [1.55-12.90] - 4 points). Patients with scores between 0 and 10 had a mortality of 5.26 percent and scores over 20 of 78.9 percent. CONCLUSIONS: The higher the score, the higher the mortality rate. The mortality risk index may be used to estimate mortality in Infective Endocarditis.

Tratamento cirúrgico dos aneurismas de ventrículo esquerdo e isquemia coronária / Surgical treatment of left ventricular aneurysm and ischaemic heart disease

Desde os primeiros relatos sobre aneurismectomia do ventrículo esquerdo, vários aspectos foram estabelecidos. Existem controvérsias relacionadas à técnica ideal de reconstruçäo ventricular, seus efeitos na morfolofia, funçäo ventricular, estado sintomático pós-operatório e sobrevida a longo prazo. Este estudo visa levantar a casuística do Serviço, observando as principais indicaçöes e tratamento cirúrgico, o estado sintomático pré e pós-operatório e a sobrevida imediata e tardia dos pacientes. Foram avaliados 12 portadores de aneurisma do ventrículo esquerdo, 9 masculinos, idade média de 60 anos, cujas principais indicaçöes cirúrgicas foram angina (58 por cento) e angina + insuficiência cardíaca (42 por cento). O cateterismo cardíaco demonstrou acinesia/discinesia segmentar em 92 por cento dos pacientes, aneurisma apical ou ântero-apical em 83 por cento e doença coronária obstrutiva em 100 por cento, acometendo 3 ou mais vasos em 75 por cento; a artéria interventricular anterior foi mais comprometida (29 por cento). A fraçäo de ejeçäo variou de 32 por cento a 66 por cento e o encurtamento percentual de 15 por cento a 36 por cento. Todos foram submetidos a revascularizaçäo do miocárdio, 9 sofreram aneurismectomia do ventrículo esquerdo, 7 com sutura linear e 2 com reconstruçäo geométrica. O tempo médio de circulaçäo extracorpórea e clampeamento aórtico foi 96 e 50 minutos para sutura linear e 180 e 86 para reconstruçäo geométrica. As principais intercorrências pós-operatórias foram síndrome de baixo débito cardíaco e fibrilaçäo atrial (16 por cento). A mortalidade hospitalar foi de 16 por cento. Os pacientes encontram-se com seguimento médio de 15 meses, sobrevida geral de 75 por cento; estäo livres de angina 89 por cento, aqueles operados por ICC estao em classe II. Esses fatores melhorando a qualidade de vida justificam a aneurismectomia.