Abstract:
:Transient complete heart block (TCHB) is defined as complete interruption of atrioventricular conduction (AVC) after cardiac surgery followed by return of conduction. This study aimed to assess the risk for the development of late complete heart block (LCHB) after recovery of TCHB and to examine the electrocardiographic and electrophysiologic properties of the AVC system after TCHB. Of the 44 patients in this study who experienced TCHB, 37 recovered completely. Seven patients progressed from TCHB to intermittent CHB or LCHB requiring pacemaker implantation. Preoperative, early postoperative, and late postoperative electrocardiograms as well as postoperative atrial stimulation were obtained. The results showed that the median duration of TCHB was 5 days in the TCHB group compared with 9 days in the LCHB group (p = 0.01). All 37 subjects with TCHB recovered AVC within 12 days, but only two with LCHB did so (p = 0.02). The risk of LCHB for the patients with 7 days of postoperative TCHB or longer was 13 times greater than for the patients with fewer than 7 days of TCHB (p = 0.01). The median late postoperative PR interval was slightly but significantly longer in the LCHB group than in the TCHB group (p = 0.02). In contrast, the electrophysiologic properties between the two groups did not differ significantly. From those findings, we concluded that delayed recovery of AVC after surgical TCHB (≥7 days), but not electrophysiologic properties of recovered AVC assessed early in the postoperative period strongly, predicts risk of LCHB. Follow-up evaluation of AVC is particularly indicated for the delayed recovery group.
journal_name
Pediatr Cardioljournal_title
Pediatric cardiologyauthors
Aziz PF,Serwer GA,Bradley DJ,LaPage MJ,Hirsch JC,Bove EL,Ohye RG,Dick M 2nddoi
10.1007/s00246-012-0595-ysubject
Has Abstractpub_date
2013-04-01 00:00:00pages
999-1005issue
4eissn
0172-0643issn
1432-1971journal_volume
34pub_type
杂志文章abstract::In our institute, 1100 patients with a history of Kawasaki disease have been catheterized for selective coronary arteriography. Their age at examination ranged from four months to 13 years. Coronary artery lesions (CAL) were found in 262 patients. As far as the type of the CAL was concerned, occlusion was noted in 20 ...
journal_title:Pediatric cardiology
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journal_title:Pediatric cardiology
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journal_title:Pediatric cardiology
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