Research Article

Application of Transesophageal Echocardiography in Amplatzer Atrial Septal Defect Occluder for Percutaneous Closure of Large Patent Foramen Ovale

Table 1

Baseline clinical and anatomical data of the study population.

Baseline characteristicsGroup IGroup II
()()

Clinical features
 Age (years)0.277
 Sex (male)18 (37.5)23 (32.9)
 Sex (female)30 (62.5)47 (67.1)0.603
 Coronary heart disease1 (2.1)2 (2.9)0.739
 Hypertension3 (6.2)4 (5.7)0.783
 Arrhythmia
  Atrial premature beat1 (2.1)1 (1.4)0.645
 Indication for closure
  Cryptogenic stroke6 (12.5)13 (18.6)0.378
  Transient ischemic attack11 (22.9)18 (25.7)0.729
  Migraine24 (50)29 (41.4)0.358
  Transient syncope2 (4.2)5 (7.1)0.783
Preprocedural c-TTE and TEE data
 Positive at rest by c-TTE38 (79.2)45 (64.3)0.082
 Large RLS after VM by c-TTE48 (100)70 (100)
 Left PFO height at rest by TEE (mm)0.06
 Left PFO height after VM by TEE (mm)aa0.145
 PFO tunnel length by TEE (mm)0.09
 ASA presence by TEE16 (33.3)27 (38.6)0.561
 HAS presence by TEE6 (12.5)9 (12.9)0.491
PFO-SD and occluder device selection
 PFO-SD by TEE during operation (mm)bb0.876
 ASD device waist size (mm)
 PFO device size
  18/2512 (17.1)
  30/3037 (52.9)
  25/3521 (30)

Compared with the left height of PFO by TEE at rest, a; compared with the left height of PFO after VM by TEE, b. ASD: atrial septal defect; c-TTE: contrast transthoracic echocardiography; HAS: hypermobile atrial septum; SD: stretch diameter; PFO: patent foramen ovale; TEE: transesophageal echocardiography; VM: Valsalva maneuver.