eISSN: 1897-4295
ISSN: 1734-9338
Advances in Interventional Cardiology/Postępy w Kardiologii Interwencyjnej
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vol. 15
Image in intervention

Three-dimensional transoesophageal echocardiographic imaging for support of minimally invasive robotic mitral valve repair using the da Vinci system – first experience in Poland

Katarzyna Kurnicka
Krzysztof Wróbel
Dariusz Zieliński
Zbigniew Juraszyński
Andrzej Biederman
Piotr Pruszczyk

Department of Internal Medicine and Cardiology, Medical University of Warsaw, Warsaw, Poland
Department of Cardiac Surgery, Medicover Hospital, Warsaw, Poland
Adv Interv Cardiol 2019; 15, 3 (57): 382–384
Online publish date: 2019/09/18
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Minimally invasive robotic mitral valve (MV) repair requires very precise preoperative planning. In order to determine the extent of MV disease, high-quality transthoracic (TTE) followed by transoesophageal (TEE) echocardiography is recommended [1]. Three-dimensional TEE imaging (3D-TEE) significantly complements two-dimensional TEE (2D-TEE) in the operative planning [1, 2].
Two men (45 and 56 years old) with symptomatic severe mitral regurgitation (MR) due to MV prolapse (NYHA II/III) without a history of coronary artery disease were qualified for minimally invasive robotic MV repair using the da Vinci system. The first procedures in Poland were performed in Warsaw in November 2018.
2D-TEE preceding the surgery revealed in both cases a significant posterior leaflet prolapse which resulted in a large MR (wide or eccentric jet, large convergence zone, wide vena contracta) (Figures 1 A, C) without left ventricular dilatation or systolic dysfunction.
As required, a detailed 2D/3D-TEE assessment was made to determine MV topography and the risk of systolic anterior motion. The measurements of each leaflet segment, mitral and tricuspid annular diameter, planar angle between the mitral and aortic annulus and the aortic outflow tract septal thickness and coaptation point to septal distance were taken as recommended [3].
3D-TEE performed in the operating room allowed us to evaluate in detail the mechanism of MR and confirmed at least three broken native chords to the P2 scallop in the first patient (Figure 1 B), and P2 prolapse with a significant cleft in the middle of the scallop in the second one (Figure 1 D). Additionally, the direction of MR jets was mapped and their intensity was assessed by 2D- and 3D-TEE.
TEE was also used to guide a proper placement of two venous cannulas positioned in the superior and inferior venae cavae and an arterial cannula during the institution of cardiopulmonary bypass (CPB). After left atriotomy, the da Vinci camera view revealed the MV anatomy comparable to the view by 3D-TEE (Figure 1 E).
In the first patient, a triangular resection of the prolapsing part of the leaflet with broken chords was performed. In the second patient, the P2 cleft was closed and two neochords were placed in the lateral and medial papillary muscle and, subsequently, attached to the prolapsing P2 segment. In both patients, a flexible partial band was implanted using interrupted sutures from the medial towards the...

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