posted on 2020-11-11, 22:15authored byPaolo Magagna, Nicola Lamasces, Olivera Rasovic, Marco Piciche, Loris Salvador
The authors present a case of ascending aorta and rapid deployment
aortic valve replacement (Edwards Intuity Elite prosthesis) through a
J-ministernotomy approach in an elderly patient.
Clinical Summary
86-year-old man
Normal ejection fraction
No coronary disease
Chronic obstructive pulmonary disease (COPD)
Severe aortic valve stenosis
Ascending aorta diameter: 6 cm
NYHA class III
You can see the preoperative angio CT scan.
The authors have in canulated the left femoral artery and vein with the Seldinger technique.
J-ministernotomy
Separation of the ascending aorta and the pulmonary artery
Vent line is inserted
Aortic clamping and antegrade infusion of Custodiol cardioplegia
Transection of the aorta and exposition of the aortic valve
Resection of the aortic valve and completion of annular debridement
The annulus was sized using calibrated with Magna Ease sizers (EDWARDS, model 1133) (valve 25)
Three
simple intertwined guide sutures without equidistant inserts were
placed inside the native annulus in the nadir of each coronary cusp.
These sutures should come out of the nadir, 2 to 3 mm above the ring.
The positioning of the guide sutures, which guide the radial orientation
and the appropriate seat of the valve frame in the native ring, should
correspond to the markers on the valve cover, allowing the surgeon to
confirm the correct valve seat by displaying the exit sutures.
Another two intertwined stitches were placed inside the native annulus of the noncoronary cusp.
The
delivery system should be shaped to replicate the sizer angle, which
allows perpendicular valve delivery to the annulus plane.
Guiding
sutures should be passed through the valve cuff at the 3 suture
markers. The surgeon should now fix the valve position within the
annulus by securing the guiding sutures on the valve cuff with
narrow-diameter snares.
The balloon was then inflated to 4.5 or 5.0 atmospheres for 30 seconds.
Snare removal and sequential suture tying
Resection of the ascending aorta
The
proximal anastomosis was performed using the polypropylene 4.0 between
the vascular prosthesis and the aorta with interposition of a thin layer
of Teflon felt. The proximal anastomosis was performed using the
polypropylene 4.0 between the vascular prosthesis and the aorta with the
interposition of a thin layer of Teflon felt.
A second suture was done, using polypropylene 4/0.
The
distal anastomosis was performed using the polypropylene 4.0 between
the vascular prosthesis and the aorta with the interposition of a thin
layer of Teflon felt.
An epicardial pacing wire was placed.
The heart and the vascular prosthesis were de-aired and the cross-clamp was removed.
This is the final result.
You can see the postoperative results on the echocardiographic: no evidence of paravalvular leaks.