El tratamiento percutáneo de la estenosis aórtica severa es una opción terapéutica para paciente inoperables y para aquellos de moderado o elevado riesgo quirúrgico. Presentamos el caso de un paciente joven inicialmente considerado inoperable, sometido a una implantación transcatéter de válvula aórtica, que comenzó a mostrar signos de degeneración tras seis años, que evolucionaron hasta requerir tratamiento quirúrgico a los ocho años del implante. Durante este tiempo, su estado de salud mejoró, por lo que fue presentado en sesión médico quirúrgica para la resección de la válvula previamente implantada y sustitución por otra bioprótesis. El procedimiento transcurrió sin complicaciones. No obstante, la resección de estas válvulas no es un procedimiento exento de riesgo, por las densas adherencias del marco a la raíz aórtica. Por este motivo, la expansión de esta tecnología a pacientes jóvenes y de bajo riesgo, no estaría justificada.

Mitral valve aneurysms are very rare complications of bacterial endocarditis. We present the case of an 88-year-old woman with moderate aortic insufficiency and an aneurysm in the anterior leaflet of the mitral valve secondary to endocarditis. After completing a full course of antibiotic, we performed though the aortotomy, mitral leaflet aneurysm resection, repairing the defect with an autologous pericardial patch, and aortic valve replacement by a bioprosthesis. The evolution of the patient was uneventful and was discharged on the ninth postoperative day. (C) 2018 Sociedad Espanola de Cirugia Toracica-Cardiovascular. Published by Elsevier Espana, S.L.U.

BACKGROUND Four predictive models for acute kidney injury associated with cardiac surgery were developed by Demirjian in the United States in 2012. However, the usefulness of these models in clinical practice needs to be established in different populations independent of that used to develop the models. OBJECTIVES Our aim was to evaluate the predictive performance of these models in a Spanish population. DESIGN A multicentre, prospective observational study. DATA SOURCES Twenty-three Spanish hospitals in 2012 and 2013. ELIGIBILITY CRITERIA Of 1067 consecutive cardiac patients recruited for the study, 1014 patients remained suitable for the final analysis. MAIN OUTCOME MEASURES Dialysis therapy, and a composite outcome of either a doubling of the serum creatinine level or dialysis therapy, in the 2 weeks (or until discharge, if sooner) after cardiac surgery. RESULTS Of the 1014 patients analysed, 34 (3.4%) required dialysis and 95 (9.4%) had either dialysis or doubled their serum creatinine level. The areas under the receiver operating characteristic curves of the two predictive models for dialysis therapy, which include either presurgical variables only, or combined presurgical and intrasurgical variables, were 0.79 and 0.80, respectively. The model for the composite endpoint that combined presurgical and intrasurgical variables showed better discriminatory ability than the model that included only presurgical variables: the areas under the receiver operating characteristic curves were 0.76 and 0.70, respectively. All four models lacked calibration for their respective outcomes in our Spanish population. CONCLUSION Overall, the lack of calibration of these models and the difficulty in using the models clinically because of the large number of variables limit their applicability.

Perioperative anemia is an important risk factor for cardiac surgery-associated acute kidney injury (CSA-AKI). Nonetheless, the severity of the anemia and the time in the perioperative period in which the hemoglobin level should be considered as a risk factor is conflicting. The present study introduces the concept of perioperative hemoglobin area under the curve (pHb-AUC) as a surrogate marker of the evolution of perioperative hemoglobin concentration. Through a retrospective analysis of prospectively collected data, we assessed this new variable as a risk factor for the development of acute kidney injury after cardiac surgery in 966 adult patients who underwent cardiac surgery with cardiopulmonary bypass, at twenty-three academic hospitals in Spain. Exclusion criteria were patients on renal replacement therapy, who needed a reoperation because of bleeding and/or with missing perioperative hemoglobin or creatinine values. Using a multivariate regression analysis, we found that a pHb-AUC < 19 g/dL was an independent risk factor for CSA-AKI even after adjustment for intraoperative red blood cell transfusion (OR 1.41, p < 0.05). It was also associated with mortality (OR 2.48, p < 0.01) and prolonged hospital length of stay (4.67 +/- 0.99 days, p < 0.001).

Nuestra experiencia indica que, para los pacientes con asistencia ventricular que sufran TIH sin trombosis asociada, en ausencia de test de activación plaquetaria disponible, la reexposición precoz a HNF exclusivamente durante el trasplante cardiaco podría ser una alternativa al uso de inhibidores directos de la trombina durante la CEC, siempre y cuando el recuento plaquetario se haya recuperado previamente y tras la intervención se reinicie un tratamiento anticoagulante alternativo a la heparina.

Early and late Troponin T determination after elective cardiac surgery. Two different meanings AIM: Although Troponins are demonstrated to be better predictors than CK-MB in quantification of myocardial damage, the relation between cut-off values for the diagnosis of perioperative myocardial infarction (PMI) and sample time is still not clear. In the present study we sought to analyse the clinical consequence of an early and late cTnt determinations after elective cardiac surgery. MATERIAL OF STUDY: Data of 117 patients undergone elective open heart surgery between January 2006 and June 2007 were prospectively collected. PMI was detected on the basis of postoperative electrocardiography/echocardiography and hemo-dynamic state. RESULTS: The in-hospital mortality was 1.7%. Eight patients (68%) presented PMI. Receiver-operating characteristic (ROC) analyses showed a cTnt cut-off of 1.22 mg/L (CI 0.94 to 0.99, P=0.0001, 100% sensitivity and 96% specificity) on arrival to ICU for the diagnosis of PMI. On the second post-operative day the cut-off value was 2.8 mg/L (CI 95% 0.84 to 0.98, P=0.0001) (sensitivity 66 % and specificity 100%). At this time the Pearson's test revealed the best correlation to ICU (P=0.008) and in-hospital (P=0.01) length of stay (LOS). DISCUSSION: A better sensibility of cTnt in diagnosis of PMI in the early postoperative period has been demonstrated to be associated to an increasing specificity in the late post-operative period. CONCLUSIONS: PMI must be suspected in patients with a cTnt > 1.22 mg/L. A second later assessment on the 2nd post-operative can exclude false positives and significantly predict the ICU and the in-hospital length of stay.