3 research outputs found

    F铆stula arteriovenosa coronaria

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    Clinical Outcomes of Electrical Disorders after Transcatheter Aortic Valve Implantation

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    IntroductionThe indication of transcatheter aortic valve implantation inpatients considered not suitable candidates for surgery isincreasing. Despite acute disorders of the conduction systemare common complications, their clinical and electrocardiographicsignificance is not completely clear.ObjectivesTo determine whether acute disorders of the conduction system after transcatheter aortic valve implantation hasprognostic implications.ResultsBetween March 2009 and February 2012, 47 patients were included in the analysis. Thirty patients (63%) had acutedisorders of the conduction system: 19 patients present edisolated complete left bundle branch block (LBBB), 9 patients isolated complete atrioventricular block (CAVB), and 2 patients both conduction disorders, with a total of 21 LBBBsand 11 CAVBs. A definite pacemaker was implanted in 12 patients (25%) before discharge: in 11 due to CAVB and in1 due to acute LBBB plus atrial fibrillation. Complete AV Breverted in the catheterization laboratory in only one patient. At one month, average ventricular pacing was 90% in patients with persistent CAVB after the intervention, only 3% in the only patient in whom CAVB reverted at the catheterization laboratory and < 10% in the patient with LBB plus atrial fibrillation.The incidence of postoperative heart failure and hospital stay was greater in patients with acute disorders of the conduction system (p = 0.007 and p = 0.045, respectively). Therewere no differences in new hospitalizations and mortalityduring follow-up.ConclusionsIn this study, the development of acute disorders of theconduction system was associated with increased incidenceof heart failure and hospital stay but not with the incidenceof major events. A definite pacemaker could be implantedimmediately after CAVB聽develops as the conduction disorderis generally irreversible.Introducci贸n: El implante valvular a贸rtico percut谩neo (IVAP) es una opci贸n terap茅utica cada vez mas utilizada en los pacientes descartados de cirug铆a. A pesar de que las alteraciones agudas de la conducci贸n (AAC) son una de las complicaciones m谩s frecuentes, su significado cl铆nico y electrocardiogr谩fico no es del todo claro. Objetivo: Determinar la evoluci贸n de los pacientes (P) que desarrollan AAC luego del IVAP. Resultados: De los 47 pacientes incluidos (Marzo 2009-Febrero 2012), 30P (63%) presentaron AAC: 21 bloqueo completo de rama izquierda (BCRI), y 11 bloqueo AV completo (BAVC); 聽2P presentaron ambos. A 12 (25%) se les implant贸 un MCPd previo al alta. 11 por BAVC y 1 por BCRI agudo m谩s fibrilaci贸n auricular. En 1 s贸lo P el BAVC revirti贸 en hemodinamia Los P que persistieron con BAVC post聽 intervenci贸n presentaron una media de estimulaci贸n ventricular en la intervalometr铆a al mes del 90%, mientras que el P con BAVC que revirti贸 en hemodinamia solo del 3% y aquel con BCRI m谩s fibrilaci贸n auricular <10%. La incidencia de insuficiencia card铆aca (IC) en el postoperatorio fue 聽mayor en los P con AAC 聽(p= 0.007), al igual que la estad铆a hospitalaria (p=0.045). En el seguimiento no hubo diferencias en la tasa de reinternaci贸n ni en la mortalidad. Conclusi贸n: En nuestro estudio, el desarrollo de AAC aument贸 la incidencia de IC y los d铆as de internaci贸n sin aumentar la tasa de otros eventos mayores. La colocaci贸n de MCPd luego del BAVC podr铆a realizarse en forma inmediata, ya que el trastorno es generalmente irreversible

    Aortic Valve Replacement in Octogenarian Patients. Perioperative Results and Mid-term Follow-up

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    Introduction: Over the last decades the number of elderly patients requiring cardiac surgery dueto degenerative aortic stenosis has consistently increased. The aim of this study is tocommunicate the experience of a center on aortic valve replacement in this octogenarianpopulation and their mid-term follow-up.Methods: From January 2005 to December 2010, 96 patients older than 80 years with degenerativesevere aortic stenosis, underwent aortic valve replacement surgery combinedor not with coronary artery bypass grafting at the Hospital Universitario Fundaci贸n Favaloro. Retrospective morbidity and mortality data were compared between bothpopulations. Follow-up to analyse quality of life was made through personal andtelephone interviews.Results: Mean age of the population was 82卤2 years and 54% were men. Exercise-induceddyspnea was the most common symptom present in 84% of the study population.Eighty-four patients (77%) presented with some degree of previous renal dysfunction.According to the additive EuroSCORE, 78.1% of patients were at high and17.7% at very high surgical risk. Isolated aortic valve replacement was performedin 55 patients (group I) and combined with coronary artery bypass grafting in theremaining 41 (group II). Overall 30-day mortality was 7.3%, 3.6 % in group I and12.2% in group II (NS). Taking into account elective surgeries, these percentageswere reduced to 5.3%, 4.3% and 6.9%, respectively (NS). During the 6-month followup,cumulative mortality was 14%, 94% of patients are in FC I-II of the NYHA classificationand 88% were not re-admitted for a cardiovascular cause.Conclusions: Aortic valve replacement in octogenarian patients combined or not with coronaryartery bypass grafting is a procedure with good short and mid-term outcome whenperformed electively in an experienced center. Therefore, it should not be contraindicatedconsidering only age or cardiac operative risk scores.Introducci贸n: En las 煤ltimas d茅cadas el n煤mero de pacientes ancianos que requieren cirug铆a card铆aca por estenosis a贸rtica degenerativa ha ido en aumento. El objetivo de nuestro trabajo es comunicar la experiencia de un centro en la cirug铆a de reemplazo valvular a贸rtico en octogenarios y su seguimiento a mediano plazo.Material y m茅todos: 114聽 pacientes consecutivos聽 mayores de 80 a帽os de edad con estenosis valvular a贸rtica severa degenerativa fueron sometidos a cirug铆a de reemplazo valvular a贸rtico asociada o no a revascularizaci贸n mioc谩rdica. Se realiz贸 un an谩lisis retrospectivo de las historias cl铆nicas, con seguimiento ambulatorio o v铆a telef贸nica.Resultados: La edad de la poblaci贸n fue de 82卤2 a帽os, siendo el 50% de sexo masculino. Se realiz贸 reemplazo valvular a贸rtico aislado en 66 pacientes y combinado con revascularizaci贸n mioc谩rdica en 48 pacientes. El EuroSCORE log铆stico聽 fue de 10.4 (IQR 6.6-11.3). El 76% fueron cirug铆as electivas y el 24% restante no electivas. La mortalidad total a 30 d铆as fue de 9.6%.聽 La insuficiencia renal previa result贸 un predictor independiente de mortalidad. La sobrevida al a帽o, 2 a帽os y 6 a帽os fue del 92.3%, 85.2% y 70.6% respectivamente. El 84% se encuentra en NYHA II. El 95% est谩 satisfecho con el resultado.Conclusiones: El reemplazo valvular a贸rtico asociado o no a revascularizaci贸n mioc谩rdica en el paciente octogenario, es un procedimiento con buenos resultados a corto y mediano plazo, que no deber铆a ser contraindicado s贸lo por la edad o el puntaje de riesgo prequir煤rgico, a menos que existan concomitantemente graves comorbilidades
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