{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,31]],"date-time":"2026-07-31T23:17:39Z","timestamp":1785539859405,"version":"3.56.0"},"reference-count":0,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"3","content-domain":{"domain":["www.ahajournals.org"],"crossmark-restriction":true},"short-container-title":["Circulation"],"published-print":{"date-parts":[[1994,3]]},"abstract":"<jats:sec>\n            <jats:title>BACKGROUND<\/jats:title>\n            <jats:p>The differential diagnosis of supraventricular tachycardia with concentric atrial activation usually requires the inducibility of sustained tachycardia and needs a complex and time-consuming electrophysiological evaluation. To develop a simple test to establish if ventriculoatrial conduction uses a posteroseptal accessory pathway or the normal conduction system, we compared the ventriculoatrial intervals during right ventricular pacing from apical and posterobasal sites.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>METHODS AND RESULTS<\/jats:title>\n            <jats:p>Continuous pacing was performed from an apical and a posterobasal right ventricular site in 34 patients with retrograde conduction over the normal conduction system (group A) and in 22 patients with conduction over a posteroseptal accessory pathway (group B). During apical pacing, ventriculoatrial intervals in group A (176 +\/- 40 milliseconds) were not significantly different than those in group B (197 +\/- 47 milliseconds, P = NS). During posterobasal pacing, group B patients had significantly shorter ventriculoatrial intervals than group A patients (158 +\/- 46 versus 197 +\/- 39 milliseconds, P &lt; .01). The difference between the ventriculoatrial interval obtained during apical pacing and that obtained during posterobasal pacing (ventriculoatrial index) discriminated between the two groups without overlapping: It was positive in all group B patients (39 +\/- 19; range, +10 to +70 milliseconds) and negative in all except two group A patients (-21 +\/- 13; range, -50 to +5 milliseconds; P &lt; .001).<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>CONCLUSIONS<\/jats:title>\n            <jats:p>This ventriculoatrial index can identify accurately and in the absence of tachycardia whether concentric retrograde conduction is proceeding over a posteroseptal accessory pathway or over the normal conduction system.<\/jats:p>\n          <\/jats:sec>","DOI":"10.1161\/01.cir.89.3.1060","type":"journal-article","created":{"date-parts":[[2012,6,12]],"date-time":"2012-06-12T00:34:42Z","timestamp":1339461282000},"page":"1060-1067","update-policy":"https:\/\/doi.org\/10.1161\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":62,"title":["Identification of concealed posteroseptal Kent pathways by comparison of ventriculoatrial intervals from apical and posterobasal right ventricular sites."],"prefix":"10.1161","volume":"89","author":[{"given":"J D","family":"Mart\u00ednez-Alday","sequence":"first","affiliation":[{"name":"Clinical Electrophysiology Laboratory, Hospital General Gregorio Mara\u00f1\u00f3n, Madrid, Spain."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J","family":"Almendral","sequence":"additional","affiliation":[{"name":"Clinical Electrophysiology Laboratory, Hospital General Gregorio Mara\u00f1\u00f3n, Madrid, Spain."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A","family":"Arenal","sequence":"additional","affiliation":[{"name":"Clinical Electrophysiology Laboratory, Hospital General Gregorio Mara\u00f1\u00f3n, Madrid, Spain."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J M","family":"Ormaetxe","sequence":"additional","affiliation":[{"name":"Clinical Electrophysiology Laboratory, Hospital General Gregorio Mara\u00f1\u00f3n, Madrid, Spain."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A","family":"Pastor","sequence":"additional","affiliation":[{"name":"Clinical Electrophysiology Laboratory, Hospital General Gregorio Mara\u00f1\u00f3n, Madrid, Spain."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J P","family":"Villacast\u00edn","sequence":"additional","affiliation":[{"name":"Clinical Electrophysiology Laboratory, Hospital General Gregorio Mara\u00f1\u00f3n, Madrid, Spain."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"O","family":"Medina","sequence":"additional","affiliation":[{"name":"Clinical Electrophysiology Laboratory, Hospital General Gregorio Mara\u00f1\u00f3n, Madrid, Spain."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"R","family":"Peinado","sequence":"additional","affiliation":[{"name":"Clinical Electrophysiology Laboratory, Hospital General Gregorio Mara\u00f1\u00f3n, Madrid, Spain."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J L","family":"Delc\u00e1n","sequence":"additional","affiliation":[{"name":"Clinical Electrophysiology Laboratory, Hospital General Gregorio Mara\u00f1\u00f3n, Madrid, Spain."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"276","container-title":["Circulation"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.ahajournals.org\/doi\/pdf\/10.1161\/01.CIR.89.3.1060","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,5,12]],"date-time":"2024-05-12T15:33:58Z","timestamp":1715528038000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.ahajournals.org\/doi\/10.1161\/01.CIR.89.3.1060"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1994,3]]},"references-count":0,"journal-issue":{"issue":"3","published-print":{"date-parts":[[1994,3]]}},"alternative-id":["10.1161\/01.CIR.89.3.1060"],"URL":"https:\/\/doi.org\/10.1161\/01.cir.89.3.1060","relation":{},"ISSN":["0009-7322","1524-4539"],"issn-type":[{"value":"0009-7322","type":"print"},{"value":"1524-4539","type":"electronic"}],"subject":[],"published":{"date-parts":[[1994,3]]},"assertion":[{"value":"1994-03-01","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}