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Biomedical subjects

Evandro Tinoco Mesquita

Publications and source records attributed to Evandro Tinoco Mesquita.

At least 19 recordsLinked to original sources
PubMed2006

[Clinical impact of positron emission tomography by coincidence system with 18F-FDG on therapeutic decision-making of patients with ischemic cardiomyopathy after myocardial infarction].

OBJECTIVE: To evaluate the influence of the myocardium viability study by coincidence imaging using 18F-FDG in the clinical decision-making of patients with ischemic cardiomyopathy and left ventricular dysfunction. METHODS: Thirty-one patients were submitted to myocardial viability study with 18F-FDG by coincidence imaging between September 2003 and November 2004. The physician answered a questionnaire about the choice of therapeutic procedure before and after PET. RESULTS: Twenty-seven patients (87%) had myocardial viability. Twenty-one (68%) physicians thought that PET changed the therapeutic procedure for their patients and 27 (87%) considered that PET added to the therapeutic decision. The current treatment decision (clinical or revascularization) correlated with myocardial viability (p=0.006). CONCLUSIONS: Coincidence imaging is a useful tool to help physicians in a difficult decision about the best treatment for patients with ischemic cardiomyopathy. Symptoms, electrocardiogram, ejection fraction and myocardial fibrosis area did not correlate with myocardium viability, so they should not be used to decide whether to perform a myocardial viability study or not.

Decision Making, Computer-Assisted↗
PubMed2006

Parasympathetic-mediated atrial fibrillation during tilt test associated with increased baroreflex sensitivity.

The autonomic mechanism that triggered atrial fibrillation in a patient during tilt test was investigated. Neurocardiogenic syncope is often characterized by diminished baroreflex sensitivity during the hypotension period. Increased barorereflex sensitivity preceding the onset of atrial fibrillation in tilt testing may indicate the involvement of a vagally mediated mechanism, as shown in the present case.

Aged↗
PubMed2006

[Arterial prehypertension and elevated pulse pressure in adolescents: prevalence and associated factors].

OBJECTIVE: To estimate the prevalence of prehypertension and elevated pulse pressure in adolescents and assess the association between those two conditions and sex, age, sexual development, obesity and physical activity. METHODS: Anthropometrical data and blood pressure were measured in and a questionnaire was applied to 456 adolescents (aged 12 to 17 years) recruited from public and private schools, in the Fonseca district, in the city of Niterói, state of Rio de Janeiro, Brazil, from 2003 to 2004. RESULTS: Thirty nine (8.6%) presented prehypertension (PH) and 13.4%, elevated pulse pressure (PP). At bivariate analysis, PH was significantly associated with sex, age and obesity, with more prevalent in boys aged between 15 and 17 years, and in the obese. Elevated PP was associated with gender only, as it was more prevalent in boys. Sexual maturation did not show an association with PH or elevated PP. Similar correlations were found at logistic regression. PH prevalence odds ratio was 7.7 for sex, 4.3 for age and 4.6 for obesity. Elevated PP prevalence odds ratio was 10.8 for sex. The correlation between PP and physical activity was positive and significant. The elevation of PP was attributable to systolic blood pressure. CONCLUSION: PH and the elevated PP were shown to be present in adolescents from a population with a low prevalence of hypertension, mostly in boys. Further prospective studies are necessary to assess the persistence and the impact of those conditions.

Adolescent↗
PubMed2006

[Perceptions of heart failure diagnosis and management: comparison between clinical cardiologists and family doctors].

OBJECTIVE: To compare the perceptions of heart failure (HF) diagnosis and management between clinical cardiologists (CC) and family doctors (FD) in the city of Niterói. METHODS: A qualitative questionnaire, validated by the EURO-HF study, was submitted to 54 FD and 62 CC. These professionals supplied the following information: HF diagnosis; availability of complementary tests; which tests were used more often; names, dosages and adverse effects of the medications prescribed; and which pharmaceuticals reduced mortality. RESULTS: FD and CC reported that the most common signs and symptoms identified by HF patients were: dyspnea, edema and fatigue (96.3% vs. 100%, 74% vs. 58% and 22.2% vs. 67.7%). The HF classification method used most often by FD was mild/moderate/severe (53.8%) while the CC used the NYHA method (72.7%) more often. CC request echocardiograms more often than FD (p < 0.001). CC differentiate HF with preserved systolic function from HF with systolic dysfunction more often than FD (p < 0.001). CC use beta-blockers (p < 0.001), angiotensin-converting enzyme inhibitors (p < 0.001) and spironolactone (p < 0.001) more often than FD. The angiotensin-converting enzyme (ACE) inhibitor dosages used by CC are greater than those used by FD (p < 0.001) and the spironolactone dosages used by CC are closer to those recommended in medical literature. CONCLUSION: CC use a more intensive investigative diagnosis and medications that are more effective in reducing morbidity and mortality rates for HF patients.

Adult↗
PubMed2005

[Cost of heart failure in the Unified Health System].

OBJECTIVE: To describe the direct and indirect costs of ambulatory and in-patient treatments of heart failure during 2002, in the University Hospital Antonio Pedro, Niterói. METHODS: A cross-sectional and retrospective study on utilization and valuation of resources in 70 patients, consecutively selected, under ambulatory and in-patient treatment. Questionnaires and records of the patients were used for data collection. The resources used were evaluated in Brazilian Reais (2002). The study's point of view was the perspective from society. The data were analyzed in the EPINFO program, 2002 version. RESULTS: The studied population consisted of 70 patients (39 women), with average age of 60.3 years old. 465 in-patients days (28.5% of the patients) took place. There were 386 ward hospitalizations and 79 in ICUs. The cost with ambulatory appointments was R$ 14.40. The expenses with ambulatory medications amounted R$ 83,430.00 (R$ 1,191.86/patient/year). The cost per hospitalized patient was R$ 4,033.62. The cost with complementary examinations totaled R$ 39,009.50 (R$ 557.28/patient/year). Twenty patients retired due to heart failure, which represented a loss in productivity of R$ 182,000.00. The total cost was R$ 444,445.20. Hospitalization represented 39.7% and the use of medications 38.3% from direct costs. CONCLUSION: The hospitalization cost and the expenses with medications represented the main components of direct costs. Indirect costs represented economic impacts similar to direct costs.

Adult↗
PubMed2005

[Anemia as a prognostic factor in a population hospitalized due to decompensated heart failure].

OBJECTIVE: To study the prevalence and prognostic value of anemia in a population hospitalized due to decompensated heart failure. METHOD: From July to September, 2001, 204 patients were included in a multicenter hospital registry of heart failure (EPICA Study--Niterói). This retrospective analysis comprised 142 patients with data about hematocrit and hemoglobin levels collected on hospital admission. The mean age was 69.5+/-13.3 years, and 72 (50.7%) patients were men. Hemoglobin levels < 13.5 g/dL for men and < 12 g/dL for women were considered anemia. The relation between anemia and in-hospital mortality was assessed through univariate and multivariate analysis with logistic regression. RESULTS: Anemia was observed in 89 (62.6%) patients, 52 (58%) men and 37 (42%) women. Mortality in anemic patients was 16.8% and, in nonanemic, it was 8% (P=0.11). In both sexes, the mortality rates in anemic and nonanemic patients were, respectively, 19.2% vs 0% (P=0.034) and 13.5% vs 12.2% (P=0.86). Through multivariate analysis, the following variables were found to be independently related to in-hospital mortality: hyponatremia [RR=7.0; 95% confidence interval (95% CI)=6.1 to 8.7; P=0.0001], anemia (RR=3.1, 95% CI=2.4 to 4.3; P=0.024), and presence of NYHA functional class IV (RR=1.9; 95% CI=1.3 to 2.6; P=0.04). CONCLUSION: In the population studied with decompensated heart failure, the presence of anemia was an independent marker of in-hospital mortality. Mortality in the group with anemia was significantly high among men.

Aged↗
PubMed2005

[Acute renal failure after intravenous use of immunoglobulin to treat myocarditis].

The patient is a 60-year-old female with functional class III/IV (NYHA) heart failure of an immunomediated etiology (autoimmune myocarditis). After unsuccessful therapeutic attempts, intravenous immunoglobulin was used, leading to deterioration in renal function, a rare complication of that therapy. After hemodialysis, the patient's renal function was restored, and the chronic heart failure improved to functional class I.

Acute Kidney Injury↗
PubMed2004

Epidemiology of decompensated heart failure in the city of Niterói: EPICA - Niterói Project.

OBJECTIVE: To compare the epidemiological and socioeconomic profiles, clinical features, etiology, length of hospitalization, and mortality of patients with decompensated heart failure admitted to public and private hospitals in the city of Niterói. METHODS: We carried out a prospective, multicenter study (from July to September 2001) comprising all patients older than 18 years with the primary diagnosis of heart failure and admitted to hospitals in the city of Niterói, whose scores according to the Boston criteria were 8 or above. Proportions were compared using the chi-square and Fisher exact tests. RESULTS: The sample comprised 203 patients as follows: 1) 98 patients from public hospitals: 50% were men, their mean age was 61.1+/-11.3 years, 65% were black, 57% had an income of 1 minimum wage or less, 56% were illiterate, 66% had ischemic heart disease, their mean length of hospitalization was 12.6 days, and the mortality rate adjusted for age was 5.23; 2) 105 patients from private hospitals: 49% were men, their mean age was 72+/-12.7 years, 20% were black, 58% had an income greater than 6 minimum wages, 11% were illiterate, 62% had ischemic heart disease, their mean length of hospitalization was 8 days, and the mortality rate adjusted for age was 2.94. The distribution of comorbidities and risk factors was similar among the patients of the 2 hospital systems, except for the smoking habit, which was more frequent among patients from public hospitals. CONCLUSION: In addition to the socioeconomic asymmetries, the hospitalization length and the mortality rate adjusted for age were greater in patients in the public health system.

Aged↗
PubMed2004

[Heart failure in Brazil. The EPICA-Niteroi study].

In this paper we review various problems of cardiovascular disease, particularly heart failure (HF), in Brazil. Cardiovascular disease is the main cause of death in Brazil, and heart failure is the most common cause of hospitalization in the Brazilian health system. The problem is even more serious GIVEN that the population is ageing rapidly; by 2025 the country will be ranked sixth worldwide in terms of numbers of old people. According to figures from DATA-SUS, HF is the most important cause of hospital admissions among the elderly in the Brazilian health system. The most frequent etiologies of HF encountered in clinical practice are coronary artery disease and hypertension. Another problem is the difficulty experienced by a large proportion of the population in gaining access to public health services; the health system is unable to cope with the needs of the population and the costs involved. An important reason for including HF under the public health system is the low socioeconomic level of many patients, which leads them to abandon treatment.

Aged↗
PubMed2003

Safety, feasibility, and results of exercise testing for stratifying patients with chest pain in the emergency room.

OBJECTIVE: To assess safety, feasibility, and the results of early exercise testing in patients with chest pain admitted to the emergency room of the chest pain unit, in whom acute myocardial infarction and high-risk unstable angina had been ruled out. METHODS: A study including 1060 consecutive patients with chest pain admitted to the emergency room of the chest pain unit was carried out. Of them, 677 (64%) patients were eligible for exercise testing, but only 268 (40%) underwent the test. RESULTS: The mean age of the patients studied was 51.7 12.1 years, and 188 (70%) were males. Twenty-eight (10%) patients had a previous history of coronary artery disease, 244 (91%) had a normal or unspecific electrocardiogram, and 150 (56%) underwent exercise testing within a 12-hour interval. The results of the exercise test in the latter group were as follows: 34 (13%) were positive, 191 (71%) were negative, and 43 (16%) were inconclusive. In the group of patients with a positive exercise test, 21 (62%) underwent coronary angiography, 11 underwent angioplasty, and 2 underwent myocardial revascularization. In a univariate analysis, type A/B chest pain (definitely/probably anginal) (p<0.0001), previous coronary artery disease (p<0.0001), and route 2 (patients at higher risk) correlated with a positive or inconclusive test (p<0.0001). CONCLUSION: In patients with chest pain and in whom acute myocardial infarction and high-risk unstable angina had been ruled out, the exercise test proved to be feasible, safe, and well tolerated.

Aged↗