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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
4
|
| pubmed:dateCreated |
1993-12-22
|
| pubmed:abstractText |
In a retrospective series of 18 consecutive patients (10 men, average age: 61.6 +/- 9.2 years) who underwent His bundle ablation by radiofrequency current, the authors analyzed the electrophysiological criteria predictive of complete atrioventricular block. A total of 82 radiofrequency bursts were analyzed (average: 4.5 +/- 3.1 bursts/patient) and classified as effective (N = 14, definitive atrioventricular block), ineffective (N = 55, no effect on atrioventricular conduction) or transiently effective procedures (N = 13, reversible Mobitz II atrio-ventricular block). Seven electrophysiological parameters were measured: HV interval, amplitude of atrial (A), Hisian (H) and ventricular (V) potentials, and the A/H, A/V, and V/H ratios before each radiofrequency burst. At the end of the ablation, 14 patients were in complete atrioventricular block and during the following 24 hours, a complete atrioventricular block developed in 3 other patients. The average value of the H potential was comparable in the effective and transiently effective procedures (0.28 +/- 0.20 mV and 0.27 +/- 0.19 mV respectively) and significantly higher than the same parameters in the ineffective group of procedures (0.65 +/- 0.14 mV, p = 0.008). The V/H ratio was progressively greater in effective (5.43 +/- 2.51), transiently effective (8.07 +/- 6.90) and ineffective procedure (14.32 +/- 13.35), p = 0.02; the average value of the A amplitude tended to be higher in the effective procedures (1.03 +/- 0.75 mV) and the transiently effective procedures (0.98 +/- 0.72 mV) than in the ineffective procedures (0.58 +/- 0.79 mV), p = 0.06. On the other hand, the other parameters were comparable in the three groups of patients.(ABSTRACT TRUNCATED AT 250 WORDS)
|
| pubmed:language |
fre
|
| pubmed:journal | |
| pubmed:citationSubset |
IM
|
| pubmed:status |
MEDLINE
|
| pubmed:month |
Apr
|
| pubmed:issn |
0003-9683
|
| pubmed:author | |
| pubmed:issnType |
Print
|
| pubmed:volume |
86
|
| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
|
| pubmed:pagination |
435-42
|
| pubmed:dateRevised |
2009-2-13
|
| pubmed:meshHeading |
pubmed-meshheading:8239871-Aged,
pubmed-meshheading:8239871-Catheter Ablation,
pubmed-meshheading:8239871-Electrocardiography,
pubmed-meshheading:8239871-Female,
pubmed-meshheading:8239871-Heart Block,
pubmed-meshheading:8239871-Heart Conduction System,
pubmed-meshheading:8239871-Humans,
pubmed-meshheading:8239871-Male,
pubmed-meshheading:8239871-Middle Aged,
pubmed-meshheading:8239871-Predictive Value of Tests,
pubmed-meshheading:8239871-Retrospective Studies
|
| pubmed:year |
1993
|
| pubmed:articleTitle |
[Atrioventricular block induced by radiofrequency: electrophysiological criteria of success].
|
| pubmed:affiliation |
Service de cardiologie, Hôpital central, Nancy.
|
| pubmed:publicationType |
Journal Article,
English Abstract
|