1,720,978 research outputs found
Myoblast transplantation for heart failure: where are we heading? Alfieri O, Livi U, Martinelli L, Arpesella G, Valfrè C, Lapenna E, Desnos M, Hagège AA, Menasché P
No full textDouble-chambered right ventricle: surgical experience and anatomical considerations.
No full textFourteen patients with double-chambered right ventricle underwent surgical treatment and repair of associated anomalies. The anomalous muscle band was isolated in 5 cases, associated with membranous ventricular septal defect in 7, with discrete sub-aortic stenosis in one and with double outlet right ventricle in one. All patients survived. The obstructing muscular band was a hypertrophic structure identifiable either with a displaced moderator band, still related to the anterior papillary muscle, or with a giant septoparietal band, inserting to the anterior free wall and occasionally present in normal hearts. According to this interpretation, referring the obstructive band to the septomarginal complex, double-chambered right ventricle should not be regarded strictly as a truncoconal malformation
Transprosthetic doppler gradients after aortic valve replacement with homograft: an echocardiographic follow-up study.
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Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
The use of an autogenous vaccine in the treatment of sternal wound infections following open heart procedures: a preliminary report
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Epicardial Real Time 3D Echocardiography with the Use of a Pediatric Transthoracic Probe: Proposal for a Technical Approach
No full textObjective: The aim of the present study was to suggest a
simple and comprehensive method for performing real-time
3-dimensional (3D) epicardial echocardiography with a pediatric
probe small enough for the surgical field. Intraoperative
echocardiography is a necessary tool for planning and
performing cardiac surgery. Although epicardial intraoperative
echocardiography is intended for few patients, it is a
part of an exhaustive approach to intraoperative echocardiography.
Design: An observational feasibility study.
Setting: A community hospital, single-institutional study.
Participants: Eighty consecutive adult patients undergoing
cardiac surgery.
Interventions: All patients were examined with 3D epicardial
echocardiography before and after cardiopulmonary bypass;
x-plane, live 3D, and 3D full-volume imaging modalities
were systematically recorded. Feasibility and acquisition
time were assessed. The image quality was evaluated by 3
independent surgeons.
Measurements and Main Results: Four sequential positions
were determined to achieve a complete 3D heart
examination focused on the structure of most interest.
Acquisition plus elaboration did not require more than 20
minutes.
Conclusions: Three-dimensional epicardial echocardiography
is feasible, and in the x-plane modality it is quicker than
standard epicardial 2-dimensional examination. According
to the judgment of independent observers, it provides highquality
and reproducible images, which are particularly valuable
for mitral valve repair
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