Incidência de trajeto intramiocárdico em grupo populacional

Fundamentos: A anomalia causada pelo trajeto intramiocardico tem sido apontada como diagnostico diferencialda doenca arterial coronariana.Objetivo: Analisar a incidencia de trajeto intramiocardico (TIM) em amostra populacional.Metodos: Estudo observacional, retrospectivo, que analisou prontuarios de 200 pacientes diagnosticados comtrajeto intramiocardico (TIM) ou ponte miocardica (PM) pela angiotomografia coronariana (angio-TC), no periodode setembro de 2010 a marco de 2015, no Hospital Beneficencia Portuguesa de Sao Paulo e MedImagem – servicode Radiologia do Hospital. Foram analisadas as seguintes variaveis: sexo, idade, altura, peso, cor da pele, historiafamiliar de doenca cardiovascular, tabagismo, presenca ou nao de stent, incidencia de dislipidemia, sintomatologia,presenca de hipertensao arterial sistemica (HAS) e diabetes mellitus (DM), e arterias coronarias mais acometidas.Resultados: Dos 200 prontuarios analisados, observou-se maior incidencia de TIM nos pacientes do sexo masculino(63,7%, n=128); media de idade 57,78±15,0 anos; predominio da cor branca (85,0%); media de peso 84,5 kg, commais da metade (n=125, 62,5%) dos pacientes abaixo do peso medio; 15 (7,5%) pacientes portavam stent; 81 (40,5%)apresentavam sintomas (dor toracica ou dispneia); 108 (54,0%) tinham historia familiar de doenca cardiovascular;73 (36,5%) apresentavam dislipidemia; 83 (41,5%) tinham HAS; 28 (14,0%) tinham DM; 98 (49,0%) pacientesapresentavam aterosclerose; e 56 (28,0%) pacientes eram tabagistas. A principal arteria acometida foi a descendenteanterior (n=193, 96,0%)Conclusoes: Conclui-se, na populacao estudada que o TIM e predominante em pacientes masculinos, de corbranca, nao obesos, mais idosos, com historia familiar de doenca cardiovascular. A principal arteria acometidafoi a descendente anterior. (AU) Background: The anomaly caused by intramyocardial bridge has been identified as a differential diagnosis of coronary artery disease.Objective: To analyze the incidence of intramyocardial bridge (IMB) in a population sample.Methods: Retrospective observational study that analyzed medical records of 200 patients diagnosed with intramyocardial bridge (IMB)or myocardial bridge (MB) using coronary computed tomography angiography (CCTA) from September 2010 to March 2015 at HospitalBeneficencia Portuguesa de Sao Paulo and MedImagem — the Radiology service of the Hospital. The following variables were analyzed:sex, age, height, weight, skin color, family history of cardiovascular disease, smoking, presence or absence of stent, incidence of dyslipidemia,symptoms, systemic arterial hypertension (SAH) and diabetes mellitus (DM), and the coronary arteries mostly affected.Results: Of the 200 patient records reviewed, there was a higher incidence of IMB in male patients (63.7%, n=128); mean age 57.78±15.0years; predominance of white color (85.0%); average weight 84.5 kg, with more than half (n=125, 62.5%) of patients below average weight;15 (7.5%) patients were stented; 81 (40.5%) had symptoms (chest pain or dyspnea); 108 (54.0%) had a family history of cardiovasculardisease; 73 (36.5%) presented dyslipidemia; 83 (41.5%) had SAH; 28 (14.0%) had MD; 98 (49.0%) patients had atherosclerosis; and56 (28.0%) patients were smokers. The main affected artery was the left anterior descending artery (n=193, 96.0%).Conclusions: The conclusion is that, in the study population, IMB is prevalent in male patients of white color, non-obese, older,with family history of cardiovascular disease. The main affected artery was the left anterior descending artery. (AU)