Four cases of atrioventricular node reentry frequent pulse in which ventricular maturity outside stimulation did not show the existence of Retrograde slow AV nodal pathway but which were shown those by heart ventricle frequent stimulation.

Naoto Yamamoto

doi:10.5105/jse.11.96

January 1, 1991Japanese Journal of ElectrocardiologyOpen Access

Four cases of atrioventricular node reentry frequent pulse in which ventricular maturity outside stimulation did not show the existence of Retrograde slow AV nodal pathway but which were shown those by heart ventricle frequent stimulation.

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Why the study?

Does rapid ventricular pacing demonstrate retrograde dual AV nodal pathways better than ventricular extrastimulus testing in patients with AVNRT?

Structured PICO

Does rapid ventricular pacing demonstrate retrograde dual AV nodal pathways better than ventricular extrastimulus testing in patients with AVNRT?

P

Population

4 cases of atrioventricular nodal reentrant tachycardia (AVNRT)

I

Intervention

Rapid ventricular pacing (RVP method)

C

Comparator

Ventricular extrastimulus testing (VE method)

O

Outcome

Demonstration of retrograde dual AV nodal pathways (DAVNP)surrogate

Rapid ventricular pacing can reveal retrograde dual AV nodal pathways in AVNRT cases where standard ventricular extrastimulus testing fails.

Implication

May support rapid ventricular pacing to detect retrograde dual pathways in AVNRT; hypothesis-generating case reports requiring prospective validation.

Abstract

房室結節リエントリー性頻拍 (AVNRT) 例においてdual AV nodal pathways (DAVNP) の存在は通常, 心房期外刺激法によって得られた房室伝導曲線が不連続性を示すことによって証明されるが, 心室期外刺激法 (VE法) によって得られた室房伝導曲線が不連続性を示すことによっても証明されることがある.しかし大多数のAVNRTにおいてVE法により不連続な室房伝導曲線を得ることは困難であることが多く, これは室房伝導が良好でありfast pathway (EP) の逆伝導が途絶しないためと考えられる.今回我々はretrograde DAVNPの存在がVE法によっては証明されず心室頻回刺激法 (RVP法) によって証明された4症例を経験した.VE法ではなくRVP法によりslow pathwayの逆伝導が示された機序は, 刺激周期の短縮に伴いHis-Purkinje系の機能的不応期がFPの有効不応期よりも短縮したためであると推論された.

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Cite This Study

Naoto Yamamoto (1991) studied this question.

synapsesocial.com/papers/6a768d04f6749a0058ec1680 https://doi.org/10.5105/jse.11.96

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Four cases of atrioventricular node reentry frequent pulse in which ventricular maturity outside stimulation did not show the existence of Retrograde slow AV nodal pathway but which were shown those by heart ventricle frequent stimulation.

Structured PICO

Implication

Abstract

Discussion

Cite This Study

Four cases of atrioventricular node reentry frequent pulse in which ventricular maturity outside stimulation did not show the existence of Retrograde slow AV nodal pathway but which were shown those by heart ventricle frequent stimulation.

Structured PICO

Implication

Abstract

Discussion

Cite This Study

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