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Titolo:
Analysis of T wave changes by activation recovery interval in patients with atrial septal defect
Autore:
Izumida, N; Asano, Y; Wakimoto, H; Nishiyama, M; Doi, S; Tsuchiya, S; Hosaki, J; Kawano, S; Sawanobori, T; Hiraoka, M;
Indirizzi:
Tokyo Med & Dent Univ, Sch Med, Dept Pediat, Bunkyo Ku, Tokyo 1138519, Japan Tokyo Med & Dent Univ Tokyo Japan 1138519 unkyo Ku, Tokyo 1138519, Japan Tokyo Med & Dent Univ, Sch Allied Hlth Sci, Bunkyo Ku, Tokyo 1138519, Japan Tokyo Med & Dent Univ Tokyo Japan 1138519 unkyo Ku, Tokyo 1138519, Japan Tokyo Med & Dent Univ, Med Res Inst, Dept Cardiovasc Dis, Bunkyo Ku, Tokyo1138519, Japan Tokyo Med & Dent Univ Tokyo Japan 1138519 Bunkyo Ku, Tokyo1138519, Japan
Titolo Testata:
INTERNATIONAL JOURNAL OF CARDIOLOGY
fascicolo: 2-3, volume: 74, anno: 2000,
pagine: 115 - 124
SICI:
0167-5273(20000731)74:2-3<115:AOTWCB>2.0.ZU;2-A
Fonte:
ISI
Lingua:
ENG
Soggetto:
RIGHT-VENTRICULAR OVERLOAD; QRST DEFLECTION AREA; MECHANOELECTRICAL FEEDBACK; ELECTROGRAMS; REPOLARIZATION; LEADS; INTERVENTIONS; MODULATION; DURATIONS; CHILDREN;
Keywords:
atrial septal defect; right ventricular overload; T wave change; activation recovery interval;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
33
Recensione:
Indirizzi per estratti:
Indirizzo: Izumida, N Tokyo Med & Dent Univ, Sch Med, Dept Pediat, Bunkyo Ku, 1 Chome5-45, Tokyo 1138519, Japan Tokyo Med & Dent Univ 1 Chome 5-45 Tokyo Japan1138519 , Japan
Citazione:
N. Izumida et al., "Analysis of T wave changes by activation recovery interval in patients with atrial septal defect", INT J CARD, 74(2-3), 2000, pp. 115-124

Abstract

We examined the distributions of the activation recovery interval (ARI), which is correlated with the local action potential duration (APD) to clarify the origin of the repolarization changes in ASD. The ECGs, QRST isointegral maps and ART isochronal maps of 21 children with ASD from 3 to 5 years old in age were studied in comparison with 21 age-matched normal children. Aconventional and 87 unipolar body surface ECG were simultaneously recorded. The ARIs were determined from the first derivatives of the ECG waveforms. Abnormal ST-T patterns were observed in Il of 21 ASD, but only in two normal children. The QRST maps of a split positive area pattern were seen in 15of ASD but none of the normal. In the ARI maps, all the normal children exhibited a short-ARI area on the left and a long-ARI area on the right side of the chest. In 19 of ASD, the ARI distribution revealed a leftward extension of the long-ARI area on the anterior chest, a relative shortening on the right anterior chest, and a localized prolonged ARI on the left anterior chest. The results suggest that right ventricular (RV) volume overload in ASD produces a localized prolongation of the APD on the RV epicardium. (C) 2000 Elsevier Science Ireland Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/11/20 alle ore 21:59:04