Transthoracic echocardiography in CHD intervention

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Transthoracic echocardiography in CHD application of interventional therapy

Road, close to the left atrium from the body of patients, lung and other factors, and the beam direction and the vertical septum, atrial septum can be clearly shown the whole picture. ASD and adjacent relationship, ASD can accurately determine the size, type, location, quantity, etc. shunt. To achieve successful closure, ASD best choice for less than the diameter of 30ram, the largest group of l0 cases 1 was 34ram, the total length of the cases of atrial septal 42mm, hard margin of atrial septal defect, surgery center of a small amount of residual shunt, 3d residual shunt disappeared after the review, and plugging or success. Atrial septal defect surrounding soft and hard, fixed relationship to the occluder large,[link widoczny dla zalogowanych], so if the atrial septal defect edge of the margin of the soft tissue, ultrasonic echo showed a very thin, the measured size of atrial septal defect should be negligible ¨], (meager remnants of the floating septal unable to support, as null and void). After occluder placement by the apical four-chamber section, aortic short axis view, the sword section repeated testing location is correct, fixed is good, and then observing whether there is segregation of color Doppler, if the shunt decreased and disappeared, indicating successful occlusion can remove the catheter. After 1 week, 1 month, 3 months, 6 months follow-up to observe the location of occlusion, shape, and whether the formation of the surrounding tissue by color Doppler to observe whether there is residual shunt, etc. In addition to the group l have a little center of postoperative residual shunt, shunt disappeared after the other. 3.2VSD focus areas to improve with the closure device and sealing technologies mature. VSD increasingly high success rate. The 8 cases were successful. The key to its success: ① selection of cases, preoperative ultrasound VSD must carefully determine the location, size, quantity, and the surrounding structure, the size of the defect between the 3 ~ 10ram from the aortic valve should be 2mm; ② ultrasound VSD Amplatzer occluder closure boot process, the sheath can be determined, whether the delivery system into the left ventricle to monitor whether the Amplatzer shunt before the release of the umbrella, after the release of results of operations can be evaluated; ⑧ were followed up with the ASD . 3.3PDA's focus is to make PDA interventional treatment success, ultrasonic sealing their attention to the following points: before surgery to clear the type of tube is cylindrical, funnel-type, aneurysm type, or window type. Artery from the aortic short axis and long axis view suprasternal fossa repeatedly observed [1], a clear diagnosis. PDA and to carefully measure the diameter, length, morphology, sub-flow, and other important parameters for estimation of pulmonary artery pressure, and to exclude concomitant cardiac malformations, Client aorta and pulmonary artery were measured in the inner diameter side to help select the block device models; ② intraoperative echocardiography and the suprasternal short axis from the aorta long axis view of aortic nest observation, echo and cardiac catheterization closure device in position within the heart and great vessels is critical, real-time observation of implanted occluder strong position and the degree of closure device between the wall and the PDA, with or without residual shunt, real-time observation of blood flow changes in the spectrum to improve the block success rate. Were followed up with ASD. 28 patients is the key to the success of the careful screening of preoperative patients, strictly indications. Therefore, ultrasound should be doing more non-standard section and the section repeated measurements, providing reliable information for clinical. In g ~ ASD, VSD, PDAZ's focus is different, so in echocardiography should be emphasized. [
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