Abstract |
Atrioventricular nodal reentrant tachycardia (AVNRT) is a relatively common paroxysmal supraventricular tachycardia. This study investigated whether adenosine-5'-triphosphate ( ATP) injection during sinus rhythm might be useful in the noninvasive diagnosis of dual AV nodal pathways. The study group consisted of 9 patients with slow/fast AVNRT and 11 control patients without antegrade dual AV nodal physiology (DAVNP). ATP (2.5 to 30 mg, in 2.5-mg increments was injected during sinus rhythm until signs of DAVNP (> or = 50 msec increase or decrease in AH or PR interval in two consecutive beats) or > or = second-degree AV block was observed. DAVNP was diagnosed by ATP test in all 9 patients with slow/fast AVNRT. DAVNP was observed by ATP test in 3 of the 11 control patients. Thus, the test had a sensitivity of 100% and specificity of 73%. ATP test given during sinus rhythm is useful for identifying patients with dual AV nodal pathways who are prone to AVNRT.
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Authors | Yasuo Okumura, Ichiro Watanabe, Naohiro Oshikawa, Riko Masaki, Kimie Okubo, Kenichi Hashimoto, Tatsuya Kofune, Takeshi Yamada, Rie Wakita, Yasuhiro Takagi, Satoshi Saito, Yukio Ozawa, Katsuo Kanmatsuse |
Journal | Japanese heart journal
(Jpn Heart J)
Vol. 44
Issue 5
Pg. 655-66
(Sep 2003)
ISSN: 0021-4868 [Print] Japan |
PMID | 14587647
(Publication Type: Journal Article)
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Chemical References |
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Topics |
- Adenosine Triphosphate
- Adult
- Aged
- Atrioventricular Node
(physiopathology)
- Electrocardiography
- Female
- Humans
- Injections
- Male
- Middle Aged
- Point-of-Care Systems
- Sensitivity and Specificity
- Tachycardia, Atrioventricular Nodal Reentry
(diagnosis, physiopathology)
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