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Titolo:
Predominant inner-half wall thickening of left ventricle is attenuated in dilated cardiomyopathy: An application of tissue Doppler tracking technique
Autore:
Tanaka, N; Tone, T; Ono, S; Tomochika, Y; Murata, K; Kawagishi, T; Yamazaki, N; Matsuzaki, M;
Indirizzi:
Yamaguchi Univ, Sch Med, Dept Internal Med 2, Yamaguchi, Japan Yamaguchi Univ Yamaguchi Japan d, Dept Internal Med 2, Yamaguchi, Japan Toshiba Corp, Med Engn Lab, Tokyo, Japan Toshiba Corp Tokyo JapanToshiba Corp, Med Engn Lab, Tokyo, Japan
Titolo Testata:
JOURNAL OF THE AMERICAN SOCIETY OF ECHOCARDIOGRAPHY
fascicolo: 2, volume: 14, anno: 2001,
pagine: 97 - 103
SICI:
0894-7317(200102)14:2<97:PIWTOL>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Soggetto:
MOTION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
16
Recensione:
Indirizzi per estratti:
Indirizzo: Tanaka, N Yamaguchi Univ Hosp, Dept Clin Lab, Minami Kogushi 1 Chome, Ube,Yamaguchi7558505, Japan Yamaguchi Univ Hosp Minami Kogushi 1 Chome Ube Yamaguchi Japan 7558505
Citazione:
N. Tanaka et al., "Predominant inner-half wall thickening of left ventricle is attenuated in dilated cardiomyopathy: An application of tissue Doppler tracking technique", J AM S ECHO, 14(2), 2001, pp. 97-103

Abstract

The importance of the inner half (IH) of the left ventricular (LV) wall has been reported in hearts that contract normally. However, it is difficult to verify this fact in an in vivo human heart with clinical echocardiography. By using a recently developed tissue Doppler tracking technique, we could assess the systolic wall thickening of the IH and outer half (OH) of the LV wall in 11 normal and 7 dilated cardiomyopathic hearts. Percent wall thickening and the fractional contribution of the IH and OH to the transmural wall thickening were calculated. In healthy subjects, percent wall thickening of the IH, OH, and transmural wall of the left ventricle were 75.8% +/- 24.1%, 39.4% +/- 14.4% (P < .001 versus IH), and 57.6% +/- 17.6%, respectively. In patients with dilated cardiomyopathy, those values were 31.3% +/- 17.1%, 31.2% +/- 20.1% (not significant versus IH), and 31.2% +/- 16.5%, respectively. On the other hand, the fractional contributions of the IH and OHwere 66.2% +/- 7.7% and 33.8% +/- 7.7% (P < .01 versus IH) in healthy subjects and 50.5% +/- 11.8% and 49.5% +/- 11.8% (not significant versus IH) inpatients with dilated cardiomyopathy. Specifically, the M contributed to the transmural wall thickening nearly twice as much as the OH did in healthysubjects, however, the predominance of IH contribution was attenuated in dilated cardiomyopathy. The tissue Doppler tracking technique is useful in assessing the IH and OH LV wall thickening separately in the clinical situation.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/11/20 alle ore 00:44:22