Left atrial appendage occluder detachment treated with transthoracic ultrasound combined with digital subtraction angiography guided catcher: A case report

Figure 1 First surgery: Left atrial appendage occlusion. A: Left atrial appendage angiography before occlusion; B: Before the release of LACbes 22 mm × 32 mm occluder, no leakage of contrast agent was obvious around the umbrella during the imaging examination; C: Transthoracic echocardiography shows that the occluder is fixed to the opening of the left atrial appendage, and no blood flow signal is observed from the left atrial appendage or left atrium around the umbrella.

Figure 2  Occluder detachment and detachment into the left ventricle.

Figure 3 Second surgery. A: Catcher capture blocker; B: Successful capture of the occluder and injected ice salt water along the sheath to soften the occluder; C: Partial recovery of the occluder into the sheath and withdrawal from the sheath; D: Complete recovery of the occluder into the sheath; E: Successful removal of the occluder.

Figure 4 Transthoracic echocardiography. A: Transthoracic echocardiography shows the occluder located at the left atrial appendage opening; B: Transseptal blood flow at the puncture site of the atrial septum.