Page 14 - Journal of Structural Heart Disease - Volume 1 Issue 2

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Meeting Abstracts
found to depend linearly with the chordae diameter. In vivo, the central basal chordae of the anterior leaflet were completely cut. The mean procedure duration was 20.8 minutes (min=16; max=26). The sectioned chordae was visible on echocardiography and MV coapta- tion remained normal with no significant MR. Anatomical and histo- logical postmortem explorations of hearts confirmed the section of the chordae.
Conclusions: Histotripsy succeed to cut non-invasively mitral valve chordae in vitro and in vivo in beating heart.
#0023
BALLON AND STENT FENESTRATION ANGIOPLASTY IN PATIENTS WITH IRREGULAR EVOLUTION IN THE INMEDIATE PERIOD AFTER FONTAN SURGERY AT CARDIOLOGY NATIONAL INSTITUTE “IGNACIO CHAVEZ” FROM JANUARY 1994 TO DECEMBER 2014. Roberto Mijangos Vázquez, Jose Antonio García Montes, Jorge Manuel Guevara Anaya, Aldo Luis Campos Quintero, Adrian Sánchez Flores, Carlos Zabal Cerdeira
National Institute of Cardiology "Ignacio Chávez", Mexico City, Mexico
Objectives: The experience in the balloon and stent fenestration an- gioplasty in patients with irregular evolution in the immediate period after the Fontan surgery at the National Institute of Cardiology “Igna- cio Chávez”.
Methods: We reviewed the records of patients who were operated with fenestrated Fontan circulation in our institute from January 2000 to December 2014. The variables were classified in: pre surgery (systemic ventricular ejection fraction, pulmonary artery medial pres- sure, systemic ventricular end diastolic pressure, McGoon index and Nakata index), trans surgery (bypass and aortic clamping), and post surgery (lactate level, pulmonary artery medial pressure, partial oxy- gen pressure and oxygen saturation).
Results: Of all patients, angioplasty with stent in fenestration was per- formed in 20 patients (80%) and angioplasty with balloon in fenestra- tion was performed in 5 patients (20%). In these patients it was found that the saturation of oxygen after the procedure decreased with a mean value of 82.6 ± 6.1%. Seven patients died, which represented 28% of all patients in the study, finding as a major cause of death cardiogenic shock in 3 patients (12%). A correlational analysis was performed, finding that patients who died had preoperative systemic ventricular ejection fraction mean value of 55% ± 4,and patients who survived had a systemic ventricular ejection fraction mean value of 64 ± 6.3%, a result with statistical significance (p 0.002).Four patients (16%) have been closed fenestration.
Conclusions: We propose that early invasive management with angio- plasty with balloon and stent in fenestration can be used effectively and with acceptable risk to achieve improvement in hemodynamic conditionsin the immediate or late postoperative period of these pa- tients. This approach holds great promise in the acute management of failed Fontan circulation.
#0024
BILATERAL ABSENCE OF SUPERIOR VENA CAVA IN A PATIENT WITH ABSENT PULMONARY VALVE SYNDROME AND INFERIOR VENA CAVA MALFORMATIONS AS A CAUSE OF COMPLICATED VASCULAR ACCESS. A CASE REPORT
Jorge Manuel Guevara Anaya, Jose Antonio Garcia Montes, Roberto Mijangos Vásquez, Aldo Luis Campos Quinteros, Adrian Sanchez Flores, Jose Guillermo Aristizabal Villa, Carlos Zabal Cerdeira
National Institute of Cardiology "Ignacio Chavez", Mexico D.F., Mexico
Bilateral absence of Superior Vena Cava (SVC) is a very rare entity, usually reported as an incidental finding. First reported by Hussein in 1981 in a patient undergoing pacemaker placement; to the date there are eleven cases reported, only two of them with any other car- diologic malformation. We present the case of a four month old fe-
19th Annual PICS/AICS Meeting Abstracts