[Prevalence of coronary anomalies detected by computed tomography at the Instituto Nacional Cardiovascular- INCOR]. / Prevalencia de anomalías coronarias detectadas por tomografía computarizada en el Instituto Nacional Cardiovascular - INCOR.

Objective: : To determine the prevalence of coronary anomalies (CA) in patients evaluated by 64-detector computed tomography (CT) at the Instituto Nacional Cardiovascular in Peru between 2016 and 2020. Materials and methods: Retrospective observational study, coronary artery CT scans of 1486 patients were performed on a 64-detector row CT scanner and reviewed in search for coronary anomalies. Results: The prevalence of CA detected by CT was 4.71% (70 cases) of which 64.3% were male. Abnormalities of origin were the most frequent, of which the origin of a coronary artery from the opposite coronary sinus was the most common (48.6%), with the right coronary being the main anomalous artery (31%), and the main path was interarterial (31%). Anomalous origin of the left main coronary from the pulmonary artery was found in 5 patients. Among the anomalies of the intrinsic coronary arterial anatomy the most frequent was the double left anterior descending artery (10%). Coronary fistulas accounted for 11.4% of cases. Conclusions: The prevalence of CA detected by 64-detector CT in a Peruvian institute was 4.71%. The most frequent coronary anomaly was the origin of the right coronary artery from the left coronary sinus with interarterial trajectory.

[Prediction of significant coronary lesions by SPECT myocardial perfusion. Results from a national reference hospital in Lima-Peru]. / Predicción de lesiones coronarias significativas mediante perfusión miocárdica con SPECT. Resultados de un centro de referencia nacional en Lima-Perú.

Objective: To determine the discriminative capacity of myocardial perfusion with single photon emission tomography (SPECT) to predict coronary obstructions by coronary angiography. To determine mortality and major cardiovascular events at follow-up. Materials and methods: . Retrospective observational study with clinical follow-up in patients undergoing SPECT and then coronary angiography. We excluded patients with myocardial infarction and percutaneous and/or surgical revascularization in the previous 6 months. Results: 105 cases were included in the study. The most commonly used SPECT protocol was pharmacological (70%). Patients with perfusion defect ≥10% of total ventricular mass (TVM) had significant coronary lesions (SCL) in 88% of cases (sensitivity 87.5% and specificity 83%). On the other hand, having ischemia ≥10% of the TVM was associated with 80% SCL (sensitivity: 72%, specificity: 65%). Clinical follow-up at 48 months evidenced that a perfusion defect ≥ 10% was predictive of major cardiovascular events (MACE) in both univariate (HR=5.3; 95%CI 1.2 - 22.2; p=0.022) and multivariate (HR= 6.1; 95%CI 1.3 - 26.9; p= 0.017) analyses. Conclusions: . Having a perfusion defect ≥10% of the MVT in the SPECT study predicted with high probability and sensitivity the existence of SCL (>80%); moreover, this group had higher MACE at follow-up.

Disección traumática de la arteria carótida interna y embolismo cerebral en un jugador de fútbol: reporte del primer caso / Blunt carotid injury and brain embolism in soccer player: first case report

Reportamos el caso de un varón de 18 años quien sufrió contusión cervical por impacto con balón de fútbol. Tres días después fue hospitalizado con hemiplejia derecha directa y afasia de expresión. La resonancia magnética cerebral mostró lesión isquémica izquierda en ganglios basales. El doppler carotideo evidenció trombo desde el origen de la arteria carótida común izquierda extendida a la arteria carótida interna izquierda (CII) y la angiotomografía documentó disección de CII (lesión traumática carotídea tipo IV). Se optó por anticoagulación con warfarina y fisioterapia de rehabilitación; con evolución favorable. La incidencia de la injuria traumática carotídea es muy rara, más aún en futbolistas; el tratamiento es aún controversial, por lo que consideramos de interés el reporte de este caso.

We report the case of an 18-year-old male patient who suffered cervical trauma with a soccer ball. He presented three days after with right hemiparesis and expressive aphasia. The magnetic resonance image showed an ischemic lesion on the left basal ganglia area. The Doppler ultrasound revealed a thrombus extending from the left common carotid artery to the left internal carotid artery, and the angio-computed tomographic scan revealed a dissection of the left internal carotid artery (carotid lesion type IV). Anticoagulation with warfarin and physiotherapy were started with good clinical evolution. The traumatic injury of the carotid artery is very rare. Treatment is controversial, so we consider interest report of this case.