[Left atrial mass after heart transplantation. A clinical case and transesophageal echocardiographic diagnosis].

We report a clinical case of a 60 year old male patient with a orthotopic cardiac transplant, submitted to a transesophageal echocardiographic study. This semi-invasive study showed a mobile multi-lobulated mass of the left atria, related with the hyperplastic process of the surgical suture area and directly associated with the cardiac transplant procedure. We discuss the rarity of this benign case, the different forms of two-dimensional echocardiographic presentation of this type of lesions, the problems of non invasive diagnostic techniques, the risk and the prognostic value of these structures.

[A transesophageal color-coded pulsed Doppler echocardiographic study of the spatial distribution of mitral regurgitation jets].

Objective: Transesophageal echocardiographic analysis of color Doppler characteristics of mitral valvular regurgitation jets.

Design: Transesophageal echocardiographic prospective study.

Setting: Ambulatory patients referred to Echocardiographic Laboratory of Gregorio Marañon General Hospital, Madrid, Spain.

[Transesophageal echocardiography in mitral prosthesis dysfunction: usefulness and limitations in the evaluation of mitral insufficiency].

This study was performed to test the usefulness of transesophageal echocardiography in the diagnosis and assessment of pathological mitral regurgitation in patients with mitral valve prostheses. Doppler color flow imaging by transesophageal echocardiography was compared to the transthoracic echocardiography and angiographic and surgical assessment. We analyzed the influence of the spatial configuration of the jet on the semiquantitative assessment of mitral regurgitation.

[Transesophageal echocardiography study with dynamic spontaneous contrast of the left atrial appendage, its relationship with the anatomy and thrombus formation].

Objective: Transesophageal two-dimensional echocardiographic study of anatomical characteristics of the left atrial appendage and its relation to spontaneous dynamic echocardiographic contrast.

Design: Outpatients undergoing a prospective two-dimensional transesophageal echocardiographic study.

Setting: Consecutive outpatients studied at the Echocardiographic Laboratory of Gregorio Marañon General Hospital, Madrid.

[Meaning of mosaic color area in mitral regurgitation. Echocardiographic transesophageal study].

Objective: The purpose of our study was to analyse the meaning of total and mosaic color Doppler area of the mitral regurgitation jet, in terms of the degree of mitral regurgitation severity.

Patients: In and out patients referred to the Echocardiographic Laboratory of Gregorio Marañon General Hospital, Madrid.

Setting: Transesophageal echocardiographic prospective study

Material And Methods: By pulsed and color Doppler transesophageal approach we studied 94 consecutive patients with mitral regurgitation diagnosis.