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Background:Transesophageal echocardiography (TEE) is a powerful diagnostic tool which has become an integral part in the management of cardiac surgery patients. We developed a one-day 3D TEE workshop specifically designed to meet the needs of perioperative cardiac anaesthesiologists. We hypothesized that participation in the workshop would increase the uptake of 3D TEE in routine perioperative practice. Aims: To examine the impact of one-day 3D TEE workshop on 3D TEE image acquisition and incorporation into routine perioperative practice. Setting: Tertiary care hospital. Design: Prospective observational monocentric study. Subjects and Methods: A convenience sample of 20 cardiac anesthesiologists (with an option to attend the one- day workshop midway through the study) from a single center consented to have their intraoperative TEE images collected during the course of the study reviewed for research purposes. Images acquired 6 months before, immediately after, and 6 months following the workshop and images were examined by a blinded, expert echocardiographer. Results: Data collected for 16 participants (8 workshop attendees, 8 non-attendees) indicate that the TEE workshop increased the number of 3D TEE images, but not x images acquired immediately following the workshop (P=0.006). No difference was observed in number of 3D images at six months’ post workshop. Workshop participants obtained more 3D and multi-plane images after the workshop and more 3D images at 6 months compared to those who did not attend the workshop. Conclusion: Our study suggests that a single day hands-on 3D TEE workshop may have had an impact on the implementation of intraoperative 3D TEE in experienced echocardiographers.
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Objective To evaluate the effect of obstructive jaundice on the accuracy of left ventricular end-diastolic volume (LVEDV) and stroke volume variability (SVV) in monitoring fluid responsiveness.Methods Thirty patients of both sexes,aged 45-60 yr,weighing 55-70 kg,of American Society of Anesthesiologists physical status Ⅰ or Ⅱ,with New York Heart Association Ⅰ,scheduled for elective pancreatoduodenectomy,were divided into 2 groups according to the serum total bilirubin levels:A group (serum total bilirubin ≥ 17 μmmol/L,n =16) and B group (serum total bilirubin＜ 17 μmmol/L,n =14).Six percent hydroxyethyl starch 500 ml was infused over 40 min after anesthesia induction.The parameters of VigileoTM such as cardiac output (CO),SVV,systemic vascular resistance (SVR) and pulmonary capillary wedge pressure and indices measured by transesophageal three-dimensional echocardiography such as LVEDV,left ventricular end-systolic volume,CO',left ventricular ejection fraction (LVEF) and ratio of mitral peak velocity of early filling (E) to early diastolic mitral annular velocity (e',E/e'ratio) were recorded before and after fluid loading.Results Compared with that before fluid loading,SVV was significantly decreased in two groups,and CO,LVEDV,CO'and LVEF were significantly increased in group B,and E/e'ratio was significantly increased in group A (P＜0.05).Compared with group B,CO,SVR,CO'and LVEF were significantly decreased,and pulmonary capillary wedge pressure was increased in group A (P＜0.05).Conclusion Obstructive jaundice causes decrease in the accuracy of LVEDV in monitoring fluid responsiveness and no effect on SVV.
ABSTRACT
Valsalva sinus aneurysms (VSA) are rare defects, representing 0.09% of all congenital heart diseases. They are more common in male and can be either acquired or congenital. The latter is consequence of an incomplete fusion of the distal bulbar septum that separates the pulmonary artery from the aorta and piece together with the fibrous annulus of the aortic valve. The subsequent thinning of the middle layer of the aorta, leads to progressive dilatation over time. We present three cases of VSA, comprising those of two male patients (aged 19 and 25 years old) and a third pertaining to a woman (aged 32 years old), all of them without cardiovascular risk factors. All patients clinically manifested heart failure and continuous murmur. The two males had sudden chest pain. Echocardiographic diagnosis was confirmed by cardiac catheterization and angiotomography. In all patients, percutaneous closure with an Amplatzer occluder, guided by three-dimensional transesophageal echocardiography, was successfully performed. In the follow-up, all three remain free of heart failure, without signs of significant aortic insufficiency. The etiology of all three cases was congenital. Although traditional surgical repair is associated with less than 2% mortality, since 1994, transcatheter closure of these lesions with different devices had been tested, being the Amplatzer occluder the one with better results because their bigger retention discs. With this technique the associated complications of median sternotomy and cardiopulmonary bypass are avoided; and at the same time a shorter recovery time and hospitalization length of stay are achieved. There are not many cases like these reported in literature.
Los aneurismas del seno de Valsalva (ASV) son defectos raros que representan el 0.09% de todas las cardiopatías congénitas. Son más comunes en varones y pueden ser congénitos o adquiridos. Los ASV congénitos ocurren debido a una fusión incompleta del septum bulbar distal, que separa la aorta de la arteria pulmonar y se une al anillo fibroso de la válvula aórtica. El adelgazamiento consecuente de la túnica media de la aorta puede llevar con el tiempo a la dilatación progresiva. Presentamos tres casos de ASV, dos de pacientes masculinos (edades de 19 y 25 años) y un tercero de una mujer de 32 años, todos ellos sin factores de riesgo cardiovascular. Los tres pacientes tuvieron insuficiencia cardiaca y soplo continuo. Los dos hombres, además comenzaron con dolor torácico súbito. El diagnóstico ecocardiográfico fue confirmado mediante cateterismo cardiaco y angiotomografía. Los tres pacientes fueron sometidos exitosamente al cierre de la ruptura aneurismática con el oclusor de Amplatzer, bajo la guía de la ecocardiografía transesofágica tridimensional. En el seguimiento los tres pacientes están libres de insuficiencia cardiaca y sin signos significativos de insuficiencia aórtica. La etiología de los tres casos fue congénita, pero la ruptura se asoció a trauma torácico. La reparación quirúrgica se asocia a menos del 2% de mortalidad. Desde 1994, han sido probados varios dispositivos para cerrar el defecto vía transcatéter, siendo el oclusor de Amplatzer el que obtuvo mejores resultados, por sus discos de retención más grandes. Con esta técnica se evitan las complicaciones de la esternotomía y de la circulación extracorpórea y se logran además tiempos de recuperación y de hospitalización menos prolongados. No hay muchos casos como estos en la literatura.
ABSTRACT
La fuga paravalvular es una complicación relevante después del cambio valvular quirúrgico. Tradicionalmente la cirugía ha sido considerada el tratamiento de elección, sin embargo, conlleva una elevada morbimortalidad, así como un incremento en el riesgo de desarrollar fuga paravalvular recurrente. El tratamiento percutáneo de la fuga paravalvular se presenta como una atractiva alternativa. Dicho tratamiento ha sido posible por la capacidad actual de integrar múltiples modalidades de imagen que han ayudado a definir la anatomía del defecto y a planificar y guiar el procedimiento de cierre percutáneo, resultando en mejores desenlaces. El Amplatzer® Vascular Plug III (St. Jude Medical) es el primer dispositivo específicamente diseñado para el cierre percutáneo de la fuga paravalvular con resultados prometedores. Presentamos la imagen ecocardiográfica transesofágica tridimensional del resultado exitoso de cierre percutáneo de una fuga paravalvular mitral residual con un dispositivo Amplatzer® Vascular Plug III (St. Jude Medical), después de un procedimiento inicial de cierre percutáneo con un dispositivo Amplatzer® Duct Occluder (St. Jude Medical).
Paravalvular leak is a significant complication after surgical valve replacement. Traditionally, redo surgery has been considered the treatment of choice, but is associated with high morbidity and mortality as well as increase risk of developing new leaks. Percutaneous treatment of paravalvular leak appears as an attractive alternative. Such treatment has been made possible by the current ability to integrate multiple imaging modalities that have helped to define the anatomy of the defect and planning and guiding the percutaneous closure procedure, thus resulting in better outcomes. The Amplatzer® Vascular Plug III (St. Jude Medical) is the first device specifically designed for percutaneous closure of paravalvular leak with promising results. We present the three-dimensional transesophageal echocardiographic images of a successful outcome of percutaneous closure of a residual mitral paravalvular leak with an Amplatzer® Vascular Plug III device (St. Jude Medical), after an initial procedure of percutaneous closure with an Amplatzer® duct occluder (St. Jude Medical).
Subject(s)
Humans , Male , Middle Aged , Echocardiography, Three-Dimensional , Echocardiography, Transesophageal , Heart Valve Prosthesis Implantation , Mitral Valve/surgery , Postoperative Complications/surgery , Postoperative Complications , Septal Occluder Device , Prosthesis DesignABSTRACT
Background: Transapical off-pump mitral valve intervention with neochord implantation for degenerative mitral valve disease have been recently introduced in the surgical practice. The procedure is performed under 2D-3D transesophageal echocardiography guidance. Methods: The use of 3D real-time transesophageal echocardiography provides more accurate information than 2D echocardiography only in all the steps of the procedure. In particular 3D echocardiography is mandatory for preoperative assessment of the morphology of the valve, for correct positioning of the neochord on the diseased segment , for the final tensioning of the chordae and for the final evaluation of the surgical result. Result and Conclusion: This article is to outline the technical aspects of the transesophageal echocardiography guidance of the NeoChord procedure showing that the procedure can be performed only with a close and continuous interaction between the anesthesiologist and the cardiac surgeon.
Subject(s)
Echocardiography, Three-Dimensional/methods , Echocardiography, Transesophageal/methods , Humans , Mitral Valve Prolapse , Heart Valve Prosthesis Implantation/instrumentation , Heart Valve Prosthesis Implantation/methodsABSTRACT
Stanford type A aortic dissections often present to the hospital requiring emergent surgical intervention. Initial diagnosis is usually made by computed tomography; however transesophageal echocardiography (TEE) can further characterize aortic dissections with specific advantages: It may be performed on an unstable patient, it can be used intra‑operatively, and it has the ability to provide continuous real‑time information. Three‑dimensional (3D) TEE has become more accessible over recent years allowing it to serve as an additional tool in the operating room. We present a case series of three patients presenting with type A aortic dissections and the advantages of intra‑operative 3D TEE to diagnose the extent of dissection in each case. Prior case reports have demonstrated the use of 3D TEE in type A aortic dissections to characterize the extent of dissection and involvement of neighboring structures. In our three cases described, 3D TEE provided additional understanding of spatial relationships between the dissection flap and neighboring structures such as the aortic valve and coronary orifices that were not fully appreciated with two‑dimensional TEE, which affected surgical decisions in the operating room. This case series demonstrates the utility and benefit of real‑time 3D TEE during intra‑operative management of a type A aortic dissection.
Subject(s)
Adult , Aortic Dissection/diagnosis , Aortic Aneurysm, Thoracic/diagnosis , Echocardiography, Three-Dimensional/methods , /methods , Female , Humans , MaleABSTRACT
Thirteen patients already scheduled for surgery for repair of prosthetic paravalvular regurgitation underwent intraoperative real time two-dimensional transesophageal echocardiography (2D TEE) and live/real time three-dimensional transesophageal echocardiography (3D TEE). In all patients, 3D TEE was able to provide more information regarding the location and size of the paravalvular defect as compared to 2D TEE. 3D TEE resulted in a more accurate localization of the defect and an estimation of the size of the defect that correlated much more closely with surgical findings when compared with 2D TEE. Our preliminary results demonstrate the superiority of 3D TEE over 2D TEE in the evaluation of paravalvular prosthetic regurgitation. 3D TEE not only provides an accurate assessment of the exact site of the leakage, but also gives a more accurate estimate of its size. This information could be valuable to surgeons who may encounter difficulty when localizing and estimating the size of paraprosthetic leaks while the heart is devoid of blood during surgery