UpToDate Contents

全文を閲覧するには購読必要です。 To read the full text you will need to subscribe.

1. 心電図チュートリアル：ペースメーカーecg tutorial pacemakers [show details]
… than native QRS, there is a pseudo-delta wave, and the stimulus-to-QRS onset is zero. Noncapture of the His bundle is not a desired outcome, but if the His bundle is not captured due to inadequate pacing …
2. 心電図チュートリアル：伝導系の生理学ecg tutorial physiology of the conduction system [show details]
… AV node and bundle of His, is termed the PR segment. The PR interval, in contrast, includes the P wave (atrial activation) as well as the PR segment Because the AV node and bundle of His are small, there …
3. 心電図上のQRS幅は正常な頻脈：臨床症状、診断、評価narrow qrs complex tachycardias clinical manifestations diagnosis and evaluation [show details]
… identification of P waves, can be difficult. In ideal circumstances, P waves can be easily seen on the surface ECG. However, due to the rapid rate of the tachycardia, P waves are often superimposed… above or within the His bundle (ie, a supraventricular tachycardia). The site of origin may be in the sinus node, the atria, the atrioventricular (AV) node, the His bundle,…
4. 第1度房室ブロックfirst degree atrioventricular block [show details]
…the atria and the ventricles, includes atrial depolarization (the P wave) and subsequent conduction through the AV node, His bundle, bundle branches and fascicles, and terminal Purkinje fibers The normal …
5. 侵襲心臓電気生理学的試験invasive cardiac electrophysiology studies [show details]
… a His bundle potential. This situation needs to be distinguished from true AH prolongation. The His bundle electrogram duration reflects conduction through the short length of compact His bundle that… Confirmation that the escape beat is sinus by examining P-wave morphology and atrial activation sequence is essential to exclude a shift in pacemaker site .…

Japanese Journal

Storms of Ventricular Fibrillation Responsive to Isoproterenol in an Idiopathic Ventricular Fibrillation Patient Demonstrating Complete Right Bundle Branch Block

Aizawa Yoshiyasu,Tanimoto Kojiro,Ogawa Satoshi,Fukuda Keiichi,Takatsuki Seiji,Inagawa Kohei,Katsumata Yoshinori,Nishiyama Takahiko,Kimura Takehiro,Nishiyama Nobuhiro,Fukumoto Kotaro,Tanimoto Yoko
International Heart Journal 54(4), 240-242, 2013
… On admission, his ECG demonstrated complete right bundle branch block as the sole abnormality. … From these beneficial effects, the VF of the patient was suggested to share common arrhythmogenic characteristics to those of Brugada syndrome or J-wave associated VF. …
NAID 130003364478

A Case of Idioventricular Fibrillation Associated with J Waves rather than Intermittent WPW Syndrome

Kawagoe Junji,Ideguchi Takeshi,Nagoshi Toshiro,Imamura Takuroh,Kitamura Kazuo
Journal of Arrhythmia 27(Supplement), PJ1_092, 2011
… Terminal QRS notches (J wave) in V<SUB>3</SUB>–V<SUB>5</SUB> … without delta wave were observed in his ECG upon admission. … Electrophysiological study revealed the appearance of delta wave after isoproterenol infusion. … Effective refractory period of antegrade Kent bundle was more than 600 msec, suggesting that intermittent WPW syndrome could not be a cause of Vf. …
NAID 130002130602

P Wave Morphology in Inferior Leads May Predict the Higher Recurrence after the Catheter Ablation of Atrial Tachycardia Originating from Para-Hisian Area

Kaneshiro Takashi,Sekiguchi Yukio,Yoshida Kentaro,Tada Hiroshi,Aonuma Kazutaka
Journal of Arrhythmia 27(Supplement), PJ2_021, 2011
… Successful RFCA site, total RF energy, the distance from successful site to His bundle and the P wave morphology of AT in inferior leads were evaluated. … There were no significant differences in successful CA site, total delivered energy and the distance from successful site to His bundle between the recurrence and non-recurrence groups. …
NAID 130002130018