RESUMEN
En los últimos años hemos sido testigos del continuo desarrollo de las técnicas de imagen en cardiología. Entre ellas, la tomografía computarizada cardiaca, técnica emergente y en continua evolución. Con la posibilidad actual de realizar estudios con muy baja radiación se han ampliado sus indicaciones más allá de la coronariografía no invasiva. En el presente trabajo de revisión repasamos las novedades técnicas de la tomografía computarizada cardiaca así como sus nuevas aplicaciones.
During the last years we have witnessed an increasing development of imaging techniques applied in Cardiology. Among them, cardiac computed tomography is an emerging and evolving technique. With the current possibility of very low radiation studies, the applications have expanded and go further coronariography In the present article we review the technical developments of cardiac computed tomography and its new applications.
Asunto(s)
Humanos , Técnicas de Imagen Cardíaca/métodos , Tomografía Computarizada por Rayos XRESUMEN
Background: Transcatheter aortic valve implantation (TAVI) is taking a leading role in the management of patients with severe aortic stenosis. Valve replacement surgery prolongs survival and is the technique of choice considering its historical background and long experience worldwide. Recently however, TAVI has positioned itself as the only standard therapy for symptomatic patients who are not candidates for surgery. Aim: To report the experience with this new technique comparing our results with those reported in the literature. Material and Methods: Between May 2010 and December 2011,17patients aged 81 ± 7.3 years (58.8% men with an Euro SCORE 29 ± 22.4%) underwent a TAVI. Results: The median transvalvular gradient was 54 ± 15.7 mmHg. All patients received a CoreValveTM. Technical success was 100%, with a post implant gradient of 6.29 ± 3.3 mmHg. Residual aortic regurgita-tion was observed in 94%, none greater than grade II. There were no complications at the vascular access site. One patient developed cardiac tamponade during the procedure. Permanent pacemaker implantation was required in 35.2%. Hospital mortality rate was 5.8%, a figure that remained unchanged at 30 days offollow-up. Conclusions: In high-risk patients with aortic stenosis, TAVI has a high success rate and a low rate of complications. Besides an appropriate patient selection, a trained multidisciplinary team and technical conditions to solve possible complications of the procedure are required.
Asunto(s)
Anciano de 80 o más Años , Femenino , Humanos , Masculino , Estenosis de la Válvula Aórtica/cirugía , Cateterismo Cardíaco/métodos , Implantación de Prótesis de Válvulas Cardíacas/métodos , Cateterismo Cardíaco/normas , Implantación de Prótesis de Válvulas Cardíacas/mortalidad , Implantación de Prótesis de Válvulas Cardíacas/normas , Mortalidad Hospitalaria , Resultado del TratamientoRESUMEN
La arteria coronaria única con origen en el seno de Valsalva derecho es una anomalía coronaria congénita poco frecuente. Presentamos el caso de un hombre de 77 años remitido para coronariografía invasiva con diagnóstico de síndrome coronario agudo sin elevación del segmento ST de localización ínfero-lateral. En el estudio se demostró enfermedad significativa en el tercio proximal de la coronaria derecha. Durante el procedimiento no se logró cateterizar el ostium de la coronaria izquierda que aparentemente se rellenaba desde la coronaria derecha. Ante la sospecha de un origen anómalo de la misma, se realizó coronariografía no invasiva mediante tomografía multicorte de 64 cortes que confirmó la existencia de una arteria coronaria única con origen en el seno de Valsalva derecho.
Single coronary artery arising from the right sinus of Valsalva is a rare congenital coronary anomaly. We report the case of a 77- year- old man who was referred for invasive coronary angiography with a diagnosis of a non-ST-segment elevation acute coronary syndrome of inferior-lateral location. Significant lesion was detected in the proximal segment of the right coronary artery (RCA). During the procedure, it was impossible to catheterize the left coronary ostium, being the left anterior descending filled from the RCA. Given the suspicion of agenesis of the left main, 64-multidetector computed tomography was performed which confirmed the existence of a solitary coronary ostium with a single artery arising from the right sinus of Valsalva.